Report on the United States and Mexican boundary survey ?made under the direction of the secretary of the Interior /by William H. Emory, major First Cavalry, and United States commissioner.

Um | >
| وم‎

| 34TH CONGRESS, ۱ SENATE. Ex. Doo, Vee
lst Session. No. 108. PT

REPORT

ON THE

UNITED STATES AND MEXICAN BOUNDARY SURVEY,

MADE UNDER

: :
I"
E. THE DIRECTION OF THE SECRETARY OF THE INTERIOR,
| E a om ا ہر‎
E سو سن‎ :
= WILLIAM H. EMORY.
سس"‎
MAJOR FIRST CAVALRY AND UNITED STATES COMMISSIONER.
VOLUME II.

ayn

Missoudt 5 P
GARDEN LIBRARY f
WASHINGTON:

A. O. P. NICHOLSON, PRINTER.

1859.

IN THE SENATE OF THE UNITED STATES. 一 JoNE 4, 1858.

E That the resolution of the Senate of the 15th of August, 1856, which directs the printing of two
extra enpies of the Appendix to the Report of Major Emory on the Mexican Boundary Survey, be so far modifi

Ane thousand evtra copies ^f said روج سنا‎

TM

CONTENTS OF THE VOLUME. :
PART I. e
| BOTANY OF THE BOUNDARY. | Ta

ee ue ee
A E I Mw ow wea eM a Wo era HN E By Joh Porrer, M. D.
NRW EE » x. 07:7 ali I c کل د سا‎ M RECON a By George Engelmann, M. D.

PARÉ TIL -

ZOOLOGY OF THE BOUNDARY.

* 5 LI ۰ ۰ 5 ۰ چو‎ "ub 5 5 ۰ 5 ۰ ۰ ۰ . 5 ۰ By 8. F. Baird.
(e SEN ۰ .* D. Se a ۰ By & F. Baird.
۱ . By 8. F. Baird.

LI
۰
۰
۰

*

0

*
۰
LI
*
*
۰

P و‎
E RS

tow

|.

X
^
xt

EY
Et

P

ac

vt

ويه 2
سان

3 الا زرد
+

a
z qot * mem.

INTRODUCTION.

BY C. C. PARRY, M. b:

GEOGRAPHICAL DISTRIBUTION.

Every observing traveller must have noticed how closely the peculiarities of the scenery of a
country depend upon its vegetable productions. Not only is this true of trees and the larger
forms of plants, but even the humbler, though apparently insignificant in themselves, have
their share in producing the general effect. Hence the subject of the geographical distribution
of plants is one which may command the attention of every intelligent mind, and this depart-
ment of botany has for many an interest which the higher details of the science do not possess.

Perhaps no region of equal extent presents more marked illustrations of the relation of the
vegetation of a country to its topography and geology than those afforded by that lying along
the Mexican boundary line.

The usually difficult task of constructing a phytological map might here be performed with
comparative ease, as the observer, little perplexed by a great variety or gradual blending of
forms, involuntarily associates particular localities with the predominating and characteristic
vegetable productions. Thus one who has ever traversed the desert table lands of the Upper Rio
Grande will not fail to unite in his recollection of these tracts the dull foliage of the Creosote
bush, the long thorny wands of the Fouquieria, the palm-like Yucca, and the crimson-flowered
and spine-armed Cereus. Still less can any one, who has seen the giant cactus of the Gila in
its perfection, ever forget the wild and singular features of the country in which it grows. The
distinctness with which the botanical districts are defined gives an unpleasant sameness to the
scenery of this country. The extensive plains exhibit a monotonous succession of the same
forms, and each mountain slope and ravine presents us a collection of plants quite like those
we have so often seen in other and similar localities. Indeed, the botanist in these regions,
knowing what to expect in each different situation, soon loses his zeal, and becomes intent upon
little else than overcoming space.

We propose to give a rapid sketch of the features presented by the vegetation of the country,
especially noticing those plants which predominate in, and give character to, the several districts
into which we have divided it.

THE LOWER MARITIME BELT.

The flora of this strip of country is too well known to require an account here, had we the
necessary data for describing its characteristic botanical productions. Its position being
intermediate between the ** tierra caliente" of Mexico and the gulf coast of Louisiana, gives to
its vegetation a mixed character, ng of that, of the two extremes. Thus, while upon the

2k

UNITED STATES AND MEXICAN BOUNDARY.

D : lower portion of the Rio Grande, we have the sub-tropical character of its vegetation indicated
= _ by the presence of the arborescent palms of the ** tierra caliente," we have at the same time the
Texas live-oak, the type of a more northern flora. This region has been more thoroughly
mee by A. F. Schott, esq., whose observations upon its botany and other natural features
. will be found in a separate memoir.

UPPER MARITIME BELT.

To the lower belt, which has an uniform alluvial soil, and is more or less influenced by its
vicinity to salt water, succeeds rolling prairies, underlaid by cretaceous rocks, which now for
the first time appear, though more or less hidden from view by a thick layer of erratic and
alluvial deposits. This division includes, as we have already noticed, the most habitable parts
| of Texas, through which run the numerous rivers which empty into the Gulf of Mexico. 06
we find rich cotton lands, and an abundance of trees, including species of oak, hickory, ash,
elm, walnut, cypress, &c., with an exceedingly rich undergrowth of vines and shrubbery. The
. open prairies are densely covered with luxuriant grasses, and have a rich and varied flora,
` which has been well explored by the early labors of Drummond, and later by those of Linct-
heimer and Wright. Upon the southern portion of the Rio Grande, where there is a higher
temperature, united with greater aridity of the soil, a vegetation of quite a different character
appears; we have here the dense growth of ‘‘ chapparral," which is so peculiar to this region.
The plants which make up the thick mass of shrubbery known by this name are different
P ` Species es mimosa and acacia, with the = known = and m" forms, most of which are

any o
وو‎ details i in this place.

VEGETATION OF THE CRETACEOUS FORMATION.

As the geological formation becomes more exclusively cretaceous the vegetation assumes a
peculiar character, and is made up of species which are rarely found elsewhere. The shrubbery
of this region presents a continuous succession of the same forms, among which are Berberis
trifoliolata, Rhus microphylla, Porliera angustifolia, Diospyros Texana, Roeberlinia spinosa,
Adc iss - sarah oe ape ior and Acanthoceltis, a new genus of Engelmann, allied

lants of this district are numerous. The rocky ledges produce in
1 and the scarlet flowered Pentstemon Grahamii, Several

amily of J lpighiacee are found here, among them Galphimia
olia, Aspicarpa واه‎ PES sad pius gracilis. Cacti are numerous, and include among
pi forma here وی‎ -— — me numerous species of cereus. The curious

1 nmon] 35 ۱ or the RE qualities of its fronds,
WE are Mes منت‎ up so that the hs forms a dry ball, which expands under the
influence of moisture, and - then appears fresh and vigorous. Several new Kl d of Cheilanthes,
| ٢ Notoclena, and other genera of ferns are found a

INTRODUCTION 11

Upon the rocky ledges a small species of agave grows in abundance. The low leaves, which
are pointed with sharp spines, are very troublesome to the foot traveller; they are, however,
of some use to the Mexicans, who employ the strong fibres they contain in making coarse ropes,
The plant is known to the people of the country as ‘‘ Lechaguia.’’ The table lands and valleys
are usually covered with an abundant growth of ‘‘ grama grass," and among it are frequent
clumps of Dasylirium, or ** bear's grass.’

We have here also several interesting species of Nyctaginaceae, belonging to the new genera,
Acleisanthes, Pentacrophis, and Selenocarpus, lately proposed by Dr. Gray.

Among the annual plants of this district are several species of Mentzelia, Perezia, Pectis,
Hymenatherum, &c., also the pretty Zucnide lobata, which usually grows in almost inaccessible
situations upon the perpendicular faces of the limestone ledges.

There are so many species that seem to be equally abundant that it is difficult to designate
any as being characteristic of the cretaceous district.

VEGETATION OF THE HIGHER BASIN PLAINS AND THE ADJOINING MOUNTAIN RIDGES, .

The higher alluvial tracts, forming the basin plains before described, produce a number of

northern forms of plants, such as species of GZnothera, Gaura, Riddellia, Zinnia, and Polygala.
We also find here the curious Peganum Mexicanum and Peteria scoparia, the latter a pretty
plant of the family Leguminose. The depressions in this alluvial region are covered with a
coarse grass, which presents an uniform dead brown color throughout the greater part of the
year. In the deep recesses and shaded valleys, the vegetation has a freshness unknown to that
of the plains. In these localities we encounter the upland live oak (Quercus Emoryi, and the
nut pine, (Pinus edulis,) and growing beneath these, Vitis incisa, Clematis Pichert, Uhpaiia
speciosa, &c. "The constant presence of water in the larger valleys is marked by the growth of
cotton wood and willows.

VEGETATION OF THE EL PASO BASIN AND THE UPPER RIO GRANDE VALLEY.

The vegetation of the immediate valley of the Rio Grande, and that of the country immediately
adjoining it upon either side, are strikingly different, and whoever passes from the valley, and
crosses the line of mountains which bounds it to the regions beyond, cannot but remark the
difference in the landscape, due to the presence of new plants. Upon the table lands which
spread out beyond the mountain barrier, the eye falls upon a great variety of plants, none of
which are seen in the more fertile valley. Among these are Fouquieria splendens, Larrea
mexicana, Flourensia cernua, Rhus microphylla, Condalia obovata, Koeberlinia spinosa, and species
of Krameria, Ephedra, and Yucca. There the Cacti flourish in a congenial soil, and we find
representatives of the genera Opuntia, Echinocactus, Mammillaria and Cereus.

Among the numerous herbaceous and suffruticose plants of these localities we may mention
Cevallia sinuata, Greggia camporum, Eriogonum Abertii, and several species of Dalea; plants
of the family Compositae, are especially abundant, and include among others Baileya multira-
diata, Bahia absinthifolia, Porophyllum scoparium, Psathyrotes scaposa, Hymenatherum acerosum,
- Townsendia strigosa, Calycoseris Wrightii, Stephanomeria minor and Haofinesquia Neo-mexicana,

The natural order of Nyctaginacee is — by وس رین‎ chenopodioides, Boerhaavia
Wrightii, and others.

The principal grasses of this region consist of the kinds هنا‎ as “bunch grass," and
belong to the genera Chondrosium and Bouteloua. The margin of the table land, where it

نان

12 UNITED STATES AND MEXICAN BOUNDARY.

borders upon the valley is broken by deep ravines, and we find here upon the sandy blufis a
growth of chaparral, made up principally of mezquit and the equally thorny acacias. In the
dry pebbly water courses, the willow-leaved Chilopsis linearis frequently occurs. Many of the
already mentioned plants of the table land are found here, besides others, which are peculiar to
these localities, such as Dithyree wislizenit, Abronia mellifera, Gilia longiflora, Lepidium
alyssoides, Gaillardia pinnatifida, Palafoxia Hookeriana and Tetraclea Wrightii, a singular
genus of Verbenaceae, recently described by Dr. Gray. In the valley of the Rio Grande we
frequently find a heavy growth of cotton wood and willows. The ‘‘ screw bean,’’ Strombocarpa
pubescens, often occupies large tracts, accompanied by a dense undergrowth of Baccharis salicina.
The low saline places produce an abundance of Obione canescens, while on the higher ground,
Tessaria borealis is a common plant.

A number of coarse composite plants are found in the valley, such as Texmenia encelioides,
Coreopsis cardaminefolia and Aster spinosus, the latter often forming dense matted masses of
considerable extent.

The rocky- crevices of the adjoining mountains furnish some of the most interesting plants of
this region. We here find Fendleria rupicola, Mortonia crassifolia, Glossopetalon spinescens,
Agenia parvifolia, Bouvardia hirtella, Tecoma stans, Texmenia brevifolia, &c.

The higher mountains of the Organ range have a vegetation possessing a somewhat alpine
character, and bear a scattering growth of pines and oaks, beneath which flourish a number of
shrubby and herbaceous plants, quite similar to those found upon the more lofty ranges further
to the west.

VEGETATION OF THE SIERRA MADRE.

As we approach the ' Madre, passing over tree: asin-plain

already described, a gradual increase in the elevation is marked by a no of those

plants, which were common lower down, and the presence of others wearing a more alpine
aspect. The surface is less bare than upon the plain below, and is covered with a closely matted
grass, which gives a singularly rounded outline to the undulating land around the base of the
mountain, Along the lower rocky swells grows the beautiful Carphochete Bigelovit, with
Anemone Caroliniona, Streptanthus linearifolius, Pentstemon Torreyi and Fendleri are among
the characteristic plants of these localities. There are but few shrubby plants, several species
of Ephedra being among the most conspicuous. The streams are bordered by Fraxinus velutinus
and Juglans rupestris, (the large variety,) and in moist places an old Californian acquaintance,
Anemiopsis Californica makes its appearance.

Upon the mountains oaks and pines are found, mostly Quercus Emoryi and Pinus edulis,
though in certain localities there is larger timber, consisting of Pinus Chihuahuana and Abies
Douglasii, The smaller woody growth here includes several species belonging to the Californian
mountain flora, such as Cercocarpus parvifolius and Arctostaphylos tomentosus.

Upon the summit of Ben More, further to the north, Dr. Bigelow discovered many plants
لمم‎ € an alpine flora, among these were Frasera speciosa, Rubus Perap, Actineli

European species not before detected on this sentinel
The abrupt descent through Guadaloupe pass, upon the western slope of the ridge, ۲
a profusion of evergreen shrubs and flowering plants, including most of those whioh ox occur on

INTRODUCTION。 13

the summit ridge. Live oaks grow upon the rocky sides of the ravines, and with them is

frequently associated a species of cedar. Among the more interesting of the herbaceous plants

found here, are Dryopetalon runcinatum, Vesicaric, and Colomie. The narrow valley of the

stream which runs through the bottom of the Pass is wooded with ash, cotton wood, and Mexican
sycamore,

VEGETATION OF THE UPPER VALLEYS OF SAN BERNADINO, SAN PEDRO, AND SANTA CRUZ WITH THAT OF
THE ADJOINING MOUNTAIN RANGES.

The country embraced in the above limits, includes that portion of Northern Sonora,
. which divides the waters which flow north towards the Gila river from those whose course is
: south, towards the Gulf of California. It is, as we have before stated, diversified with high
. wooded mountains and ypiand plains, well watered valleys and dry and barren tracts. The

| arborescent growth is not esseutially different from that we have noticed in speaking of the

۱ other divisions of country. Live oaks, the nut pine, cedar, ash, walnut and cotton wood are
1 produced either upon the mountains or in the upland valleys. Its plains are covered with an
| uniform growth of upland grama grass, or in the more arid localities by mezquit and its thorny
associates. This region furnishes a number of singular and highly interesting genera and
` species, most of which are described by Dr. Gray, in the second part of ‘‘Plantae Wrightianez,”’

in the Smithsonian Contributions. A reference to this work will give a better idea of the
character and distribution of the flora of this district than our limits will allow us. As it
. occupies a station between several botanical divisions, so its flora partakes of that of those
regions. The following list of some of the plants found here will be seen to embrace species
belonging to California, Texas, Mexico, and New Mexico, viz: Eschscholizia douglasii,

Zauschneria Californica, Eulobus Californicus, Bowlesia tenera, Anemone Caroliniana, Draba
caroliniana, Corydalis aurea, Androsace occidentalis, Rutosma texana, Erodium texanum,
` Layia Neo-mexicana, Cowania Mexicana.

۷ :

. VEGETATION OF THE LOWER SANTA CRUZ VALLEY, THE DESERT OF TUCSON, AND THE CENTRAL VALLEY

E. | OF THE GILA. 0

‘The region defined as above constitutes a very distinct botanical district, many of its peculiar
: plants not being found elsewhere. As we have mentioned in a previous sketch, the valley of the
Santa Cruz, as it leaves the mountains in its northward course towards the Gila, gradually
looses its fertile character, and finally terminates in the desert plain which forms the table land
of the Gila. The vegetation of this tract comprises many of the forms which are found on all
. the barren plains of the country. Here, as in similar situations elsewhere, the mezquit and

the creosote bush are conspicuous. Cacti are abundant here, and of various types. icu are
the low arborescent Opuntias, generally bearing proliferous fruit, as well as Kd pee
stemmed species. The enormous Echinocactus wislizenii and Caespitose mammillartus — Cerei
Aare common, while, either standing solitary or collected in groups, the lofty pu giganteus
towers above all. A species of misletoe is common upon the mezquit trees of this re

` The sheltered crevices of the neighboring mountains produce a species of agave, and in these
localities we find Franseria deltoidea, Encelia farinosa, and Perityle nuda.

a

N k

see O
E

14 UNITED STATES AND MEXICAN BOUNDARY.

x After the occurrence of rains the open plans are carpeted by a profusion of bright colored
y evanescent annuals, among the most conspicuous of which are Vesicaria, Eschscholtzia Douglasii,
NE A scanty growth of annual grama grass grows beneath the ever abundant Larrea, and the
more alluvial portions of the tract are occupied by Obione canescens. In the deep cracks of the
smooth washed surface Bowlesia tenera and some species of Hosackia are found. Near the
immediate valley of the Gila we encounter species of s Simsia, Gaillardia, and
Oligomeris glaucescens.

The valley of the Gila has many features in common with that of the Rio Grande, and
among the botanical productions common to both valleys we notice Tessaria borealis and
mezquite, which latter forms dense ““ cl haparral." The trees bordering the stream are mostly

cotton wood and willow.

VEGETATION OF THE RIO GRANDE, CANONS, AND: THE CONNECTED BASINS

The flora of the caiions of the Rio Grande differs but little from thai of the mountain rawies
we hee already alluded to. We find stunted shrubs rooted in the crevices of the rocks or `
` scattered along the broken summits. The abrupt walls, whether of limestone or of igneous
Sock; afford favorable places for the growth of such plants as affect inaccessible localities. Here
we meet two species of the well characterized genus Laphamia, viz: L. dissecta and L. bisetosa ;
also Perityle aglossa and L. Parryi, the pretty Eucnide lobata, Cowania ericifolia, and emoryi, 8
new genus of the order Scrophulariacee, dedicated to Major Emory.

In open places the WEEE اا‎ to table lands makes its نع‎

stramineus grows in its cina‏ سجن Greggit i is Tula common, peer the RAS fruited‏ ا

perfection.
i All the basins and caiions within these limits present a similar vegetation to the one just
~~ noticed.

In the Chisos basin a remarkable shrubby plant, allied to Scutellaria, was discovered. This
Dr. Torrey has described as Salizaria, a new genus of the order Labiate. It has a straggling
habit, and grows along the gravelly margins of dry water courses. The Sierra Carmel, upon
e summits of which we should expect to meet with many botanical novelties, was passed, in
۱ earch in the month of November. Under these circumstances but little
ed respecting its flora. Live oaks and the nut pine grew upon the
higher veal and its 1 ipland plains and valleys were covered with luxuriant grama grass. The
beautiful Santa Rosa valley is marked by the most attractive scenery. Its broad and fertile
plains, with copious streams, bordered by gigantic cypress, sycamore, and pecan trees, with a
back ground of high mountains, form a landscape upon which the traveller, wearied by the
monotony of the sterile table lands, gazes with the keenest enjoyment.
From this point, on approaching the lower course of the Rio Grande, lying to the ont,

; enr a sudden t دو زم‎ to the forms of — before alluded to as characterizing this

INTRODUCTION， 15

AGRICULTURAL CAPACITIES,

We have attempted to give a sketch of the external features and spontaneous vegetation of
the region of country along the United States and Mexican boundary line. It now remains to
notice its adaptation to agriculture, and our remarks regarding this may all be embraced in one
general conclusion.

Wherever the supply of water is constant, and sufficient fcr the purposes of irrigation, or
wherever the regular overflow of the rivers can be relied upon to supply the amount of moisture
required for the growth of crops, independently of the rains, in those places, and in those only,
can agriculture be pursued with success.

The portions of the country best suited to cultivation are those which are capable of irrigation.
For these the supply of water is obtained, not only from the larger rivers, as the Rio Grande
and Gila, in which the head of water is increased by the construction of dams, but springs and
small water courses, these often lving in mountainous situations, are laid under tribute.

In the course of the preceding sketch we have noticed the fact that the lower portions of the
numerous valleys are of a sterile and unproductive character, for the reason that the water of
the streams is absorbed before it reaches the portions which lie farther below, where, instead of
& running stream, we only find a sandy bed, with the adjoining region unfit for the purposes of
cultivation.

Those places which are supplied with the necessary moisture by the overflow of the rivers

have a still more precarious dependence than those where irrigation is practiced. In these the
quantity of water cannot be regulated, and they are exposed to the two extremes of scarcity or
superabundance. One of the best examples of this system of cultivation is seen at Presidio
del Norte, where the Concho unites with the Rio Grande. As these two rivers have different
periods of high water the inhabitants are enabled to frequently secure two crops from the same
fields in one season. In order to accomplish this the first crop, depending upon the overflow of
the Rio Grande, must be sown and harvested in time to admit of the planting of the second
crop, depending upon the later rise of the Concho. All this depends upon so many contingent
circumstances that it is oftener attended by disappointment than by success, and, between the
extremes of flood and drought, the people frequently suffer for want of food.
. We have already noticed that a large extent of country, though destitute of streams to supply
the water required in cultivation, receives from the atmosphere and clouds, in the form of dew
and rain, sufficient moisture to permit the growth of the richest pasturage, and we have large
distriets of unequalled grazing lands, so broad and so abounding in herbage as to compensate
for their deficiencies in other respects. Here the buffalo and antelope have already given place
to wild cattle and horses, and we look for the time when these shall yield in their turn to
domesticated flocks and herds, denoting that nomadic barbarism has been supplanted by
civilization, with its ameliorating influences.

Many large tracts of this country must ever remain as deserts, being alike destitute of
vegetable and minere resources ; but even these otherwise valueless regions are the very portions |
which present the fewest impediments to travelling, and, indeed, form natural highways t ge
otherwise inaccessible parts of the country.

Other facts connected with this part of the subject, as regards character of climate and

16# UNITED STATES AND MEXICAN BOUNDARY.

habitable condition of different sections of the country, will be dwelt on by others, or may be

left to inference from what has been already noted.
BOTANICAL FEATURES.

The general botanical features of the region under examination next claim our attention,
and in elucidating them, we shall be guided by the great natural divisions of country already
indicated, as these furnish us plain lines of demarcation for separate botanical districts. Thus,
there is a group of plants growing in the immediate vicinity of the sea, and which characterize
the Littoral Region ; above these, and confined more or less closely to the base of the mountains,

is found another group indicating the Supra-Littoral Region; next to this, in the ascending

order, is what may be termed the Lower Mountain Region, with a still different vegetation; and
lastly, the Proper Mountain Region, producing plants peculiar to elevated localities.

LITTORAL PLANTS,

Among the exclusively littoral plants, some are common to the seacoast of nearly all
countries ; and these, such as the common Salicornia, are found here, and it is our intention to
notice only those which are peculiar to this particular coast. We mention, first of all, two
species of Abronia, (A. arenaria and A. umbellata,) which spread their trailing branches over
the sand dunes which edge the sea-shore, and with their abundant foliage and beautiful
umbelled flowers, give relief to the barren features of the landscape.

doniog ~ — the Abronias a species " suns (Mesembryanthemum) is frequently found.
This dene sprea : .: gula Its showy, hough o evanescent, pink

same region, n الو ا سا‎ to the sea-beach, is another species of this genus,
probably identical with the well known M. crystallinum. Here it is an annual, attaining its full
size in the month of June, when it may be seen in large patches several rods in extent, pre-
senting a thick bed of showy flowers. The leaves and stems are beset with shining glandular
little warts, which contain a strongly saline fluid. The flowers, which are ephemeral and very
abundant, appear in regular succession from June to August. After the flowering period the
plant withers and dries up, leaving a thick mat of seed vessels, which remain closed until the
commencement of the rainy season; the hygrometric tissue of the capsule then expands, under
the influence of moisture, and the enclosed seeds escape and commence germinating. The dry
remains of the plant are frequently burned for the sake of the ashes, which, being strongly
alkaline, are used in making soap. Both the species here mentioned are so characteristic of the
places they occupy that they would seem to be indigenous, but it is ولا مهنع‎ thought by
botanists that they are introduced,

Among other plants characteristic of this region are GZnothera viridescens, (Hook.,) Franseria
bipinnatifida, and a species of Statice, which grows near the head of San Diego bay, and seems
hardly distinct from S. Limonium.

The common Salicornia here acquires a shrubby growth, and is frequently entwined with a
species of Dodder, and accompanying it is found a new species of Batis, to which Dr. Torrey
has given the name of B. Californica. Frankenia grandifolia grows here abundantly, associated
with Layia carnosa, Aromia tenuifolia, and Tuckermannia. Among the shrubs peculiar to this

EDS يي‎ UO Rr meae "AM Jab AE ZR ARIES MENS

4

INTRODUCTION。 1

region may be noticed Styphonia serrata, with its thick evergreen leaves and Obione canescens,

which is very abundant, A species of Lycium, with yellow flowers and red berries, is also“

conspicuous. This brief enumeration will serve to give a general idea of the characteristic
vegetation of what we have termed the Littoral Region.

SUPRA-LITTORAL REGION.
Leaving the salt water, to the influence of which the characteristics of the preceding region
are due, we come to the Supra-Littoral district, which presents a more striking variety in its
` vegetable forms.
This region includes a large proportion of shrubbery, to which, as it imparts peculiar features
to the scenery, we shall especially direct our attention.

Before enumerating the plants which make up this woody growth, we would remark, that

nearly all the shrubs of this region are inclined to form a stunted and bushy growth, which is
evidently caused by exposure to dry seasons and sea breezes. There is also to be noted a leaden
color of foliage, which does not depend upon the abundant growth of Artemisia, most of which
possess this tint, but is common to a large proportion of the shrubs of this region. Both of
these peculiarities of the vegetation have their influence upon the character of the landscape.
One of the most striking shrubs is Hriogonum fasciculatum, a neat evergreen, with small pink

flowers, disposed in crowded umbels at the summit of prolonged stalks. Its season of رخف‎ =

is during the midsummer, and it is generally characteristic of arid and barren tracts,

arborea (Nutt.) is frequently associated with this plant, and is distinguished by its yellow ê

and singular bladdei-shaped pods. Here is also found Rhus aromatica, (Nutt.,) which frequently
acquires quite an arborescent growth and occupies extensive tracts. It is clothed with shining
evergreen leaves, which resemble those of the holly and exhale a strong odor like that of laurel,
We also meet with Photinia arbutifolia, a handsome and often symmetrically formed shrub.

This has rich evergreen foliage and beautiful bunches of white flowers, which are succeeded by
scarlet berries. In favorable localities this sometimes attains the height of twenty feet, with a

trunk six inches in diameter at the base. Another shrub deserving especial notice is Simmondsia

californica, (Nutt.,) which has persistent leaves of a pale green color, and inclined to assume a
vertical position. The plant is dioecious ; the mature fruit is about the size of a hazel nut, and
has a thin smooth three-valved husk, which separates spontaneously when ripe, disclosing a
3 brown triangular kernel. This fruit, though edible, can hardly be termed palatable ; its taste
is somewhat intermediate between that of the filbert and acorn. It is, however, employed by
the Indians as an article of diet, and is called by them **jajoba." The range of the Simmondsia
extends to the base of the mountains, and it is found again, in similar situations, upon the

eastern side, though less abundantly, as well as in the upper valley of the Gila, where it was |

by Major Emory, in 1846. Besides the shrubs above enumerated, the Artemisia
Californica i is widely diffused over this region ; this is employed by the Mexicans as a populag
remedy against cholera, under the name of “ Estafiat.”’

On the San Diego ‘promontory there is a dense and intricate growth of llrubbery , to which |

both the people -

n the town and from the shipping have fora long time resorted for fuel.

The greater proportion is furnished by Eriodictyon, which is a large shrub of from eight to
iameter of from two to four inches. The wood is very ce تت‎ "

twelve feet in height， with a
اسوك‎ but brittle, ع‎ charged Mond, which causes it to burn Eee even

318 UNITED STATES AND MEXICAN BOUNDARY.

` when green. In this locality are also found the beautiful Ceanothus rigidus, Pitavia dumosa,
: “Adenostoma fasciculata, and a species of scrub oak, all forming dense thickets.

` We must not omit to mention the Cactacew, which here present species of all the extra
tropical genera, as remarked by Dr. Engelmann in his memoir upon this family. These plants, |
”from their striking and singular forms, impart a characteristic feature to the region they inhabit. ۱
A new species of pine is peculiar to the district now under consideration. It occupies an arid

. tract near the ocean beach, about twelve miles north of San Diego, at the entrance to Solidad

. valley. In this locality (the only one in which it has been found) it forms a small sized tree, .
ith rather open foliage. It is particularly distinguished by its long fascicles of leaves, which
are in fives, and its large ponderous cones. This species, the specific characters of which will be
found more fully described in the following list, I have ventured to designate, 1 in compliment to
a distinguished American botanist, as Pinus Torreyana.

Along the borders of the streams which traverse this Supra-Littoral district are found the
common cotton-wood, (Populus angustata,) the Platanus Mexicanus, and, in the lower portion of
the San Luis Rey valley, an Alnus; these, with various species of willow, make up the proper
imber jsp of this region. T isis He ds in these سيت‎ consists mainly of coarse

ummer appearance. T Fobra à the moistened ground becomes re in an oubli of
ried tints. The pale blossom of the elegant Dodecatheon integrifolium nod on every hill side,

e Lupines and rainbow colored Gilias deck the ground, and various ferns and mosses appear.
"The Ribes speciosum hangs its scarlet pendants, and the rich yellow flowers of Viola = 7
are abundant everywhere. Even the numerous northern genus Saxifraga is represe 5
y more than one species. A large number of Hydrophyilacee, including species of E Ma,

celia, and Eutoca, are among the early tokens of spring, while the orange colored flowers of
b, pale blooms of Platystemon, and the pink ones of. Meconopsis, show that the
tribute EI to um up the eps flora. Among bos eui are a po ۱

normous size of its root iu bok ‘ks مت‎ are وا‎ with a luxuriant oeil
wild oats, (Avena fatua,) which is so extensively naturalized that it gives to every fertile
a the appearance of a cultivated field. The wide plains that border the sea in the neigh-
rhood of Los Angeles are covered with the richest pasturage. The Zrodium cicutarium,
p e “pin grass,’’ and furnishing a highly esteemed fodder,) with several species of wild
lov 7 : and Medicago,) are mingled with a variety of other herbage, and thus serve to
vea meadow-like aspect to ihis teeming 0 Such i is the ieee appen: of cont country

INTRODUCTION. 19

THE LOWER MOUNTAIN REGION,

As we begin to enter the mountain range we come upon what we have termed the Lower
Mountain Region, the intervening slope between the base of the mountain and the summit ridge.
Here the species of plants last considered disappear, and are replaced by an almost entirely dif-
ferent assemblage of vegetable forms.

The Adenostoma fasciculata, which we have before alluded to, is frequently found covering
entire hills. This plant is not peculiar to this region, but grows on all exposed situations, from
the lowest to the most elevated. It has fine and thickly set dark green foliage, and forms a
conspicuous feature inthe landscape. From its habit of growth it may be considered as the heath
of this country, though it belongs to a different family, that of the ۰

As the Artemesias disappear, scrub oaks show themselves on the steeper mountain slopes;
and, as the valleys become narrower and more rocky, we find the California live-oak (Quercus
agrifolia.) This forms a large spreading tree, the holly-like evergreen foliage of which adds
to the beauty of the mountain scenery. In the more northern sections of the country this oak
is met with in the vicinity of the sea; but as far south as San Diego it grows upon the moun-
tain slopes only, and its presence denotes a considerable elevation. It is usually of stocky
growth and unwieldy shape. Its wood is coarse grained and liable to speedy decay ; hence it is
but little esteemed for its timber. It has, however, a very thick bark, which will, no doubt, in.
time, be found of great value as a tanning material. y

Among the shrubs of this region which deserve notice is Arctostaphylos tomentosa, This 5
Species is said to form quite a good sized tree at the north; but in the district at present under
consideration it occurs only as a shrub, rarely attaining the height of fifteen feet and a diameter
of from two to four inches at the base. It is a handsome evergreen bush, sending off numerous
branches close to the ground. Its bark is smooth, of a reddish color, and splits off in trans-
verse shreds. The wood, which is very close grained and durable, is an excellent material for
small turning work. It bears a small red berry, resembling our well known ‘bear berry,”
though less astringent, which possesses acid properties, and, under the name of Manzaiiita,
(‘‘ little apple,’’) is in common use as an ingredient of cooling drinks.

Another plant belonging to this region is Cerasus ilicifolius (** wild plum.") This is also an
evergreen, and has thick pale green spinously serrate leaves. Its fruit, when mature, is of a
yellowish pink color, with a pulpy external portion scarcely exceeding a line in thickness.
Thcugh the fruit has a pleasant taste, it would scarcely be considered worth eating in a country
which was not, like this, almost destitute of wild fruits. 5

The scrub oaks growing hereare all evergreen, with rigid coriaceous repandly toothed leaves,
which are very variable in size and shape, even in the same individual. The fruit of all the -
species is of about the medium size and form, and is collected in large quantities by the Indians,
who use it in preparing their favorite article of food, which they call ** Atole.’’

Cer cocarpus parvifolius i is another characteristic plant of this region, and is remarkable {or its
long, spirally-tailed seeds. It is quite a handsome shrub, growing in clumps, and throws up
wand-like branches to the height of five or ten feet. This is pretty exclusively confined to the
higher elevations, and € even reaches to the summit ridge.

We notice, also, as an inhabitant of these localities, Frangula Californica, Gray, eec D

XC ARI RT ENTERA Y غه سم‎

= 20 UNITED STATES AND MEXICAN BOUNDARY.

3 tomentellus, Benth. P1. Hartweg,) a species which appears to have a wide geographical range.

— Mr. Hartweg’s specimens were collected among the mountains of the Sacramento valley, and! -

p we have seen others which were found by Dr. A. Randall near the head waters of the
— . Gila river.
pae In the more southern portions of this district, and growing very abundantly in the vicinity
of the boundary line, we find the pretty Adenostoma sparsifolia, (Torr. in Emory's report.) This
grows more plentifully among the mountains than the already mentioned A. fasciculata, though
22 ` the two agree closely in habit and are frequently found side by side. It grows in clumps,
formed of numerous slender branches, and attains a height of four or eight feet. The upper
; part of each branch divides near the summit into a fine spray, clothed with yellowish green
` leaves, and, in the proper season, thickly set with small white flowers. The leaves and upper
stems are covered with a glandular varnish, which exhales a pleasant aroma resembling that
: ` of Aspidium fragrans.
Other shrubs that may be noticed as characteristic of this region are the Zriodyction Califor-
micum and Chamebatia foliolosa, (Benth.;) the latter recently figured by Torrey in Plantae
. Frémontianae, in the Smithsonian Contributions. The shrubbery of this district is marked
| & very intricate mode of growth, especially that upon the Coast Range of mountains.
2, so densely interwoven is the close mass of stunted bushes, that it is nearly impossible to

one’s way either up or down the mountain sides.
` This region furnishes a large variety of herbaceous plants. The greater number of those
which, in the accompanying list, are referred to the ‘‘ Mountains east of San Diego," have their
localities in this district. among the crevices of rocks pox پش‎ species of ferns, of the
Aspidium,; Gymnogramma, Ory) Adiant lia, &c. Mosses are
E it few lichens are observed ; : among مت‎ latter are the singular Ramalina Montis
و‎ relsfornits, Menzies,) and species of Parmelia, Roccella, and Evernia.

THE PROPER MOUNTAIN REGION.

The وو‎ summit ridge, which is elevated to a height of from 3,000 to 5,000 feet above
the sea, bears a rather meagre fringe of pines and other trees of the same family. This im-
parts a peculiar feature to the landscape, and recalls to mind the snows and wintry climate of
high latitudes. Of the genus Pinus proper we find four species, some of them being dwarfed
ntatives of those forest monarchs which are so abundant and. conspicuous further to the

' though rarely, the majestic Pinus Lambertiana, with its enormous
is more abundant. This species is remarkable for its singular
rhich is tipped with a hard curved spine. The size and shape of this fruit
»- much like that of the pine

Anc ther species, P. deflexa, (Torr.,) has a trunk of elegant columnar form, and frequently
ttains to majestic proportions, even in these unfavorable situations. The fourth species is a
nut-pine, and is described by Dr. Torrey in the accompanying enumeration as Pinus Llaveana.
` This species is somewhat isolated in habit, and, as far as we have ascertained, has a very
limited range near the dividing ridge and south of the boundary line. In the character of its
fruit and foliage this species is closely allied to Pinus monophylla, (Torr.,) though quite dis-

INTRODUCTION. 21

tinct. It has a very compact, symmetrical form. The young individuals present a regularly
oval mass of foliage, which, reaching the ground, completely conceals the stem and branches.
Older plants attain a height of from 25 to 40 feet, and show a short trunk which supports a
rounded head. This species bears an edible nut, which is collected by the Indians as an article
of food.

Besides the pines, the other Conifer are Abies Douglasii and Thuja occidentalis.

We always find upland oaks associated with the pine growth of this region. These include
the common Quercus agrifolia and Q. densiflora, the latter species being the more common upon
the higher ridges. It is of stocky habit, and has wide-spreading branches, which form large
spherical heads. The bark of this tree appa like that of the elm, and the wood is close-
grained and durable.

There is another oak, which has deciduous leaves, the two preceding being evergreens. It
seems to be closely allied to or identical with Q. tinctoria. Of this species there are two varie- > -
> _ ties which are only distinguishable by the fruit, which in one has a large and prominent
gland, while in the other the gland is almost concealed by the cup—characters which seem to be 5
constant in the same individuals.

The shrubbery of this region presents but little variety, and consists mostly of species which — .
have been enumerated as belonging to the Lower Mountain district.

We naturally expect to find here the undergrowth which, in all countries, accomp
pine forest. Here, indeed, grows the woodland strawberry, (Fragaria vesca,) while
plants are represented by Cyclobothra alba; we also meet with Viola lobata, a 1
species of Bentham. But of ته‎ so common elsewhere in such localities, we have only.
a solitary species of Platanthera. Curices are sparsely distributed, and Potentilla, so common
in northern latitudes, has a place in our catalogue. The well-watered valleys are covered with -
a fine sward of native grasses, and lichens of sparkling yellow decorate the decaying pines.

. VEGETATION OF THE EASTERN SLOPE OF THE MOUNTAINS, THE DESERT, AND THE BASIN OF THE COLORADO. re
The features which vegetation presents, within the limits of this section, may be best de-
scribed by noticing those which would naturally attract the attention of the traveller. The
. vegetation of the summit ridge differs but little upon its eastern and western side; but as we
go further down the abrupt eastern descent a new group of plants comes into view, one which
nts a marked contrast to that occupying the corresponding Lower Mountain region of the

2 ane side, ore ora shrubs and ag plants of ange aspect meet the eye. ms
id

c bad rocky cafions and crevices a ues variety of singular forms. Cacti again
` except in one or rtwo instances, are all different from those found on : Pei

Ictus رویز‎ lifts its bristling trunk from the clefts vd the 1 "in
168 ai Bim: met with. A new species of eni |

۹ 43. «
CTS C ENT Seid
x diy didis 7
SAA NY ا لكي‎ T st e

UNITED STATES AND MEXICAN BOUNDARY,‏ وو

۱ new Jihumnaceous shrub (Zizyphus Parryt, Torr.) makes its appearance. Upon the hill sides
1 . here grows a species of Agave, the ‘‘ Mezcal’’ of this region. The root of this, when prepared
sr by a kind of underground roasting, serves as an important article of food for the Indians. Here
1 . we also find the ‘‘ Spanish Bayonet,” a species of yucca, which presents its spine-armed leaves
to the traveller. As we proceed, the lower valleys assume a complete desert-like character. The
` **ereosote bush" (Larrea Mexicana) makes its first appearance, to be our constant companion .
: for the remainder of the journey. Perhaps the most striking plant of these wastes is the
Fouquieria splendens. This grows in clumps, consisting of from twelve to twenty long wand-
like branches, which, springing from the main stem close to the ground, rise to the height of
from ten to fifteen feet; the stems are beset with rows of spines, from the axils of which grow
small fassicles of jua. Its bright scarlet flowers only appear at the time when the stalk
is destitute of leaves, and hence the whole plant has too naked an appearance to exhibit much
beauty.

2 : The well-known mezquite, (Algarobia glandulosa,) which we shall notice more particularly
: ` hereafter, now becomes a common shrub; and near the base of the mountains a species of pal-:
metto is seen growing in the clefts of the rocks. Its appearance in these localities invariably
ndicates the presence of water, though this is frequently found to be too saline for use.

As we advance upon the desert plain a very distinct character of vegetation presents itself. On
the gravelly ridges near the mountains we find the stiff stalks of Fouquieria. In the fur-
n-water courses there is usually a growth of shrubbery larger than in other portions
sert. In such situations a یز‎ tree of grace outline occurs—the Báo spinescens,

position of S Now ۳ we find a ی‎ Variety among the ppm ۸ very rank TR
1 lof a species Amaranthus borders the lakes in wet seasons, and on the upper clay borders of
Y “í New river." The annual “Gramma grass'' yields, after the rains or the overflows of the
i rivers, a rapid growth of evanescent but highly nutritious fodder. We find in these situations
species of Boerhavia and one of Kallstroemia. The mezquite trees near these places attain
considerable size, and frequently bear upon their branches a vigorous growth of a peculiar

descend from the table land of the desert, by the steep bluff which bounds the alluvial
the Colorado river, the vegetation consists almost entirely of dense thickets of mez-
a more varied character when we reach the alluvial tracts. On all places
| x vii pond, the latter a a thicket ی‎ the imme-

P periti, an easy passage for man or با‎ The 1 ee aE of this tree y rondets it unfit

1 most of the uses for which timber is needed. Asan article of fuel it is scarcely inferior to

y and the Es is very durable. The fruit of the mezquite is of the greatest value to the

regions. It is a long bean-shaped pod, which is greedily devoured by cattle
hi, shly nutritious. A gum exudes from this tree which clouds resembles i
x عله‎ ١ The production of the gam is Sdi ۳ ntly incre |

INTRODUCTION. 2g

ineisions made at certain seasons of the year, and especially by the proximity of fire ; facts which
may be turned to account if the gum should ever be collected as an article of commerce.
Growing with the mezquite, though preferring a moister soil, is the S/rombocarpa pubescens, or
** screw bean,” as it is called, on account of the twisted form of its pods. It is usually of small
growth, and is rarer than the mezquite. The fruit is also used as food for animals, but is less
valuable than that of the mezquite. ۱

The principal undergrowth consists of 7essaria borealis, a shrubby composita, which grows
upon light dry soil in thick masses. Its straight branches are from four to eight feet high ; the
younger portions of which, as well as the leaves, are covered with a silvery pubescence. In low
saline places we find several chenopodiaceous plants; Salicornia, among others, which here
becomes a stout shrub of two or three feet in height. "These localities also furnish the singular
Dicoris, a notice of which appears in Dr. Torrey's Appendix to Emory's Report.

A kind of soft cane grass (Arundo Phragmites) grows along the river's margin, and is the
principal reliance for fodder in this region. Two other kiuds of grasses are met with in similar
situations, the seeds of which are collected for food by the Indians living near the river. One
of these is a Panicum, the seeds resembling millet. The other has digitate spikes, resembling
Eleusine. The flour made from the seeds of these wild grasses is husky, but quite palatable; — E
and it may be remarked, that species of the genera from which it is derived are in common E
cultivation in the eastern hemisphere. m.

Many ravines occur on the eastern edge of the desert, by means of which its drainage ach.
the valley of the Colorado; these furnish some of the most interesting plants in the di stri
Here we again encounter the silvery chapparal tree, before noticed, (Dalea spinescens ;) also, ٤
another of the same natural family, Olneya Tesota, (Gray, Pl. Thurb.) This is a good sized
tree, having much the habit of the common locust. Its fruit consists of short irregular pods,
which contain two large orbicular seeds. The flowers were not seen. We also find here the
tree frequently referred to in Major Emory’s Report as the ‘‘ green-barked acacia’’ of the
valley of the Gila. This is Cercidium floridanum; and in these localities it is quite a large —
tree, resembling the weeping willow in habit. Its long drooping branches bear an abundance
of pods.

Fouquieria grows upon all the gravelly hills, and the cactus family are represented by a
slender, cylindrical, much branched, and horribly spinose Opuntia, (O. ramosissima, Engel. n. sp.)

Much yet remains to be learned respecting the vegetation of this singular region, especially

| that of the eastern base of the mountain range. Only enough is known at present to prompt
the desire of a thorough botanical exploration of its floral riches.

taking leave of this branch of our subject, we briefly notice a few general facts connected‏ مو
with the vegetation of the country under consideration. One of the most striking botanical‏
characteristics of this region, and one which attracts the attention of the most casual observer, —‏
is the great preponderance of evergreen shrubs, This is not only true of the seacoast and‏
desert, but also of the higher mountain ranges. This fact has an important bearing upon the‏
aspect of the scenery, which would otherwise be desolate indeed in a country exposed‏
uninterrupte 1 drought of seven months duration in each year. Though the verdure has‏
vivid freshness pring, but. is even oo to a leaden hue, yet the relief to the eye w‏

seems increased dart T

Another peculiarity is the | -— Reval ae lence of a مسق‎ vH This is

DA UNITED STATES AND MEXICAN BOUNDARY.

È = ` the most arid tracts, and serves to give a somewhat stimulating property to the atmosphere.
` This odor is due not only to the abundance of artemisias, but to a great variety of plants,
especially those of the Labiate order, such as species of Salvia and Audibertia. Most of the
` Composite found here are more or less aromatic. In all cases the aroma seems to depend upon
` a resinous exudation, which probably performs the office of checking evaporation, by closing
the pores of the leaves, and thus enables the vegetation of these arid tracts to survive the long
ontinued dry ۰

The effect of the peculiarities of the climate upon the vegetation of this region may be noticed
here. The singular alternations of wet and dryness, heat and cold, produce a confused blending
of seasons. Upon the immediate coast most of the annuals and those perennial plants having a
cculent nature make their growth during the winter months, that being the season of rain.
In this latitude vegetable growth meets with but very little impediment from cold, as in these
months the temperature rarely falls below the freezing point. When the November rains com-
وت‎ falling vegetation puts on its spring aspect, every barren hill is soon clothed in green, and

midwinter flowers are blooming in profusion everywhere, and many have even passed their

r leaves, and only resume them at the close of the rainy season. This seeming exception to
zeneral activity of vegetable life during the winter months is accounted for by the fact that
mh class of plants alluded to is almost exclusively confined to the margins of streams, hence
their growth depends less upon moisture from the atmosphere. As dryness advances, during
ie months of I and June, all the evanescent forms are swept away, and the profusion of
: اه‎ to ibe, scanty products of the arid summer. Finally, these two yield

2 utumn l growth, which is ; mainly confined - to the courses of ;
3, یق‎ “i find the alternation of seasons more like that of و پا سي‎
Here there is a winter sufficiently cold to prevent and a summer sufficiently moist to ^ — a
vor تومير‎ growth, which continues throughout the latter season. The scanty vegetation
pon me eastern side of the mountains and — the Colorado is scs: artially watered by the
owing » و‎ m» river.

mu - at the coast, we بو‎ a ا‎ wall of high tertiary stuff abutting on the
1 rtion, which is thinly clad with verdure at any season, presents an uninviting
j ence it happens that to the traveller who views it from the sea it is forbidding in
the extreme. Ata ee distance — puer where we mee the line of او‎

INTRODUCTION, 25

support a rank vegetation. Along this belt, too, lie fruitful plains, which, when clothed with
the pasturage of early spring, excite the admiration of the beholder.

As we approach the junction of the tertiary and the granitic exposures barrenness again
prevails. The thin soil, which is here confined to the crevices of the rocks, produces a growth
of shrubbery, the stunted character of which indicates its unproductive nature. Proceeding
further inland, we find among the basin-shaped mountain valleys large trees and rich pasture
grasses, denoting that a fertile soil again appears. This character, more or less varied by local
causes, extends to the summit level.

Occasionally terraces are found upon the higher mountain slopes which possess a productive
clay soil, well adapted to the growth of winter grains. In general, however, these localities
are rugged and barren. From these facts it would appear that this country possesses a large
share of fertile soil, but in estimating its agricultural capacities we must also take into consider-
ation the peculiarities of the climate if we would arrive at correct conclusions. It is owing to
the fact that this latter is not taken into account that such discrepancies occur in the statements
of travellers, who, according to the season at which they view the country, pronounce it some-
times a desert and at others a garden. Let any one follow up the coast in the month of March,
and pass over the verdant plains that stretch towards the sea ; let him see every valley and hill
clothed in the rich green of the wild oats, and every snow-fed stream running with clear water,
and he will exclaim, ** This is Arcadian land, the realization of the poet’s song." But let him
pass over the same region in the month of August or September, when nearly every green thing
has disappeared, when, instead of soft breezes wafting over refreshing verdure, the heated air
rises with a wavy tremor from the parching ground; let him visit the land when nothing
remains of the streams but the dry beds, and the herds of cattle, which before were roaming at
large in the enjoyment of the rich pasturage, are gathered in herds around the margins of the
stagnant marshes, and the same traveller will pronounce the country to be a desert unfitted for
the abode of man or beast.

Here, then, we have two widely differing extremes, between which lies the proper mean.

The true mode, then, of estimating how far this region is adapted to agriculture is to follow
up the courses of the various streams which run towards the sea, and note the point at which
the supply of water is constant, the width of the valley, and the nature of the soil at these
places, and also whether the character of the surface will admit of irrigation. We then have
the data. for forming a just opinion as to the value of the land for husbandry. If the observa-

Aións are made further inland, among the mountains, then the increase of elevation must be‏ د
taken into account. The winter here brings snow, and the summer is shorter than it is near‏

the sea level. Hence the length of the growing season is diminished, but while it contini

` growth is extremely vigorous, especially in the month of June. The abundant supply of water,

wood, and the bracing mountain air, compensate for a frequently inclement een the difficulty
of transportation, and a short summer season.

The founders of the early mission establishments in this region seem to c" had a clear
appreciation of these facts, and their locations were wisely selected, so as to embrace the widest
extent of cultivable land, and the best situations for farms are still found to be in their vicinity.

These missions occupy the valleys of the main water-courses, generally at that point where the "

supply of water can h — in all seasons. "Their aqueducts, ph s d water um

E NE 08 UNITED STATES AND MEXICAN BOUNDARY.

E os _ towards the sources of the streams or from local springs, were often of great length and magni-
` tude. The one belonging to the San Diego mission, for instance, is a continuous wall of

` masonry for the distance of nearly three miles. The upper portion of each valley was generally
= occupied by a branch dependency of the main mission, thus securing the entire control of the
۱ agricultural resources of the valley.

In regard to the eastern slope of the mountain but little additional need be said. In the
immediate vicinity of the summit ridge arable land is found, but the more precipitous slope
` renders this too limited in extent to claim much attention. Desert valleys and pent up caiions
succeed between this and the great plain. As far as all agricultural purposes are concerned

and destitute of every kind of vegetation.

We have already noticed that several shrubs are peculiar to this tract, which, if they serve
no other purpose, at least afford relief to the eye.

The borders of % New River” being subject to frequent if not regular overflow, would seem
to present some opportunities for the limited cultivation of maize, beans, pumpkins, and melons,
1 such as is practiced by the Indians on the Colorado, and the existence of ‘‘ gramma grass" on

the higher adjoining ground would seem to indicate that quickly maturing cereals might be
raised here.
The supply of water might, moreover, be rendered more constant and equable by the con-
struction of artificial reservoirs and ditches. Still we must admit that any system of cultivation
post be very هت نس‎ in a location where its success depends upon such variable causes.
ecting " New River" apply in a great measure to the Colorado. Here the
n is, of necessity, confined to those portions of the valley that are subject to overflow and
sequent deposition of fertilizing sediment. The higher adjoining lands, being without
Pench of these influences, are, from their extreme aridity and the light porous nature of

their soil, quite unfit for any cultivation.

All the Indian settlements upon the Colorado with which we are acquainted are located with
reference to an overflowed portion of the river margin. Near the junction of the Gila with this
river one Indian village occupies an old river bed, which, when the river is high, is completely
covered by the stream. Another settlement is situated upon a low alluvial delta lying between
the two rivers, and a third is built in a slough. These are also flooded at high water. The
١ ivated by these Indians are principally maize, beans, and pumpkins. No doubt
| sad many of the sub-tropical fruits would succeed here, but our present
۱6 extent of arable soil, of the vicissitudes of the climate, and of the
| و‎ too vague to warrant any but the merest conjecture in regard
to its future agricultural im |

UNITED STATES AND MEXICAN

BOUNDARY SURVEY,

UNDER THE ORDER OF

LIEUT. COL. W. H. EMORY,

MAJOR FIRST CAVALRY, AND UNITED STATES COMMISSIONER.

BOTANY
OF THE BOUNDARY,

BY

JOHN TORREY.

BOTANY,

RANUNCULACE.

` CLEMATIS RETICULATA, Walt. var. ? foliis tenuioribus, etc., Gray, Pl. Wright, 2, p. 1. Valley
of the Cibolo, Chihuahua ; Bigelow.

CLEMATIS PITCHERI, Torr. € Gray, Fl. 1, p. 10. Hills of the Limpia and other places in
western Texas; Bigelow.

CLEMATIS LIGUSTICLFOLIA, Nutt.; Gray, Pl. Fendl. p. 3. Copper Mines, New Mexico;
Bigelow, and westward to California; Nuttall, Fitch.

CLEMATIS LASIANTHA, Nutt. in Torr. & Gray, l.c. (Tas. I.) In various places, California, Parry.
C. pauciflora, Nutt., of which I have a specimen in fruit, kindly sent to me by that excellent
botanist, appears to be a form of this species with smaller leaves and flowers than usual. Dr.
Parry also found it at San Diego, but with male flowers only. Seemann refers 0. lasiantha to
C. Peruviana, DC.

CLEMATIS DRUMMONDII, Torr. & Gray, 3 c. Along the tributaries of the Rio Grande, western
Texas, and the Mexican States west of that river.
۱ ATRAGENE ALPINA, Linn. Sp. p. 764. A. Ochotensis, Pallas; Gray, Pl. Fendl. p. 4. Sides of e
q Ben Moore, near the Copper Mines of New Mexico; April; Bigelow.

THALICTRUM FENDLERI, Engelm. in Pl. Fendl. p.5; Gray, Pl. Wright, p. T; Torr. Pl. Whipple,
p. 61. Copper Mines, New Mexico; Bigelow, Ai del Pajarito, Sonora; Schott, Monterey.
| California; Parry.

1 ORES CAROLINIANA, Walt. Fl. Car. p. On the upper Rio Grande, western Texas, and
> Chihuahua. Root an oblong black tuber.
: . Myosurus 9۹/58, Linn. Sp. p. Banks of streams, Chihuahua, April; Bigelow. On the
à — .. lower Rio Colorado, Sonora ; March ; Schott.
|. RANUNCULUS TRACHYSPERMUS, oda: & Gray, Pl. Lindh. 1 p. 3. Prairies of western Texas ;
; miu. وروی‎ Schott. The two varieties of 卫 ngelm. )1. c.) pass into each other.

R. QUATILIS, var. DIVARICATUS, Gray, Man. ed. 2, p. T. R. divaricatus, Schrank;
Gray, Pl. و‎ 2, p. 8. On the Mimbres, New Mexico ; و‎ May--July ; Bigelow, Thurber.

RawuNcuLUs CYMBALARLE, Pursh; Torr. & Gray, Fl. 1, p. 11. San Elceario, ec on the
Rio Grande; June; Bigelow.

Hinter AFFINIS, 2. Brown; Hook. Fl. Bor. 0 1, p. 12, #۰ 6. Copper Mines, New
Mexico; June—August ; Bigelow.

RANUNCULUS HYDROCHAROIDES, Gray, Pl. Thurb. p. 306. Wet LE. Mababi, Sonora;
Thurber.
RANUNCULUS MACRANTHUS, Scheele in, Linnea, 21, p. 585. E repens, var. macranthus, Gray, |

Pl. Lindh, 2, p. 141, & Pl. Wright, 2, p. 8. Wet grassy places on the Limpia mey;
Bigelow.

led el په‎ cE E SE

80 ' UNITED STATES AND MEXICAN BOUNDARY.

N RANUNCULUS REPENS, var. MARILANDICUS, Torr. & Gray, Fl. 1, p. 31. Hills west of the Copper
— Mines, New Mexico; June; Bigelow.
RaxuxcuLUs CALIFORNICUS, Benth. Pl. Hartw. p. 295 ; Torr. Pl. Whippl. in Pacific R. Road
ها‎ p. 62. Monterey, and near San Francisco, California ; March—May ; Thurber, Parry.

RANUNCULUS HEBECARPUS, Hook. & Arn. Bot. Beechey, p. 369 ; Torr. l.c. R. parviflorus, Torr.
0 Gr. Fl. 1, p. 25, non Linn.

DELPHINIUM AZUREUM, Miche, Fl. 1, p. 314. On the upper Rio Grande, and westward to
California ; April—June.

DELPHINIUM CALIFORNICUM, Torr. & Gray, Fl. 1, p. 31. Monterey, California; May ;
Parry.

DELPHINIUM PATENS, Benth. Pl. Hartw. p. 296. In various mdi of California, near the coast ;
Parry, Thurber.

DELPHINIUM Menziesin, DC. Syst. 1 p. 355 ز‎ Lindl. Bot. Reg. 1. 1192. Near San Diego, etc.,
California ; March ; Parry.

DELPHINIUM DECORUM, Fisch. & Mey. Ind. Sem. (3) Petrop. p. 33. Monterey, California ; May ;
Parry. Napa county, Thurber.

DELPHINIUM ScoPULORUM, Gray, Pl. Wright, 2, p. 9. Hills near the Copper Mines, New

Mexico ; Bigelow. iis
DELPHINIUM NUDICAULE, Torr. & Gray, Fl. 1, p. 33 & 661. Var. caule folioso, Napa county,

California ; March ; Thurber.

DELPHINIUM CARDINALE, Hook. Bot. Mag. t. 485. D. coccineum, Torr, in Bot, Whipp. Rep.

p. 62. (TAn. IL.) Mountains east of San Diego, California ; Parry. UE max prose | jo be»

y of the last species, but the lobes of the leaves are much longer, and taper to TOW pou

١ endid plant, with large scarlet flowers. Dr. Parry collected it in the year r 1850, T€
iE ien distributed specimens of it under the MS. name quoted above. Our plate was engraved

before the figure in the Botanical Magazine was published.

: AQUILEGIA LEPTOCERA, var. FLAVA, Gray, Pl. Wright, 2, p. 9. Organ mountains, near Doña Ana,

. New Mexico, and on hills at the Copper Mines; Aic ی‎ $e es oe. Banks of

rivers, Sonora; Thurber, & Capt. E. K. Smith. —

"AQUILEGIA CANADENSIS, Linn. ; Torr. & Gray, Fl. 1, p. 29. Torr. in Bol. Whipp. l. c. p.

" Bayines and hill sides, near Monterey, California; May; Parry

2 pus, Dough ; Bot. en 25,1. 30. Sides of hills above and below Sta Barbara;

Ob

Gen. Ill. 1, t. 28. Wet ravines, valley of‏ و

BERBERIS : زوس‎ AQUIFOLIUM, Pen; FL 1 p. 219, t 8 (ed. مه‎ T.) Ne
r ean hills at the Coppa اس‎ 1 ow.

1 we late

BOTANY. 31

erectis laxe 5—T-floris folium subaequantibus ; pedicellis flore subduplo longioribus. D.
trifoliata, Torr. Bot. Whipp. p. 63, ex parte, non Moric. Western Texas and New Mexico;
Bigelow, Thurber. Cañon of the Guadaloupe river, Sonora; Capt. E. K. Smith. A handsome
shrub 5—10 (rarely 15) feet high, Leaves coriaceous and rigid; leaflets 1—2} inches long,
sometimes truncate or cordate at the base, the middle one usually much longer than the others,
and with more numerous teeth ; the lowest pair situated close to the base of the petiole. On
some specimens the primary leaves are reduced to small branching prickles, as in Berberis
proper. Racemes 1—3 together; the pedicels 4—5 lines long. Flowers about as large as
in the common Barberry. Filaments inappendiculate. Berries somewhat ovate, dark blue,
about the size of currants. This species was first discovered by Frémont, in 1844, on the
tributaries of the Rio Virgen, in southern Utah. It is nearly allied to B. trifoliata, but differs
1 in the number of leaflets, longer racemes, and blue berries.
BERBERIS TRIFOLIATA, Moric. Pl. Nouv. Amer. p. 113, t. 69; Gray, Pl. Lindh, 2, p. 142.
Western Texas, and on hills near the Copper Mines, New Mexico; Bigelow. Westward to
Chihuahua, Nuevo Leon, etc.; Gregg, Thurber. The bright red acid berries are used for tarts,
and are less acute than those of B. vulgaris.

NYMPHAEACE.
NurHAR ADVENA, Ait. Kew. ed. 2, 3, p. 295. In water, Devil's river, western Texas; Sept.
in fruit ; Bigelow.
* PAPAVERACEJE.

ARGEMONE Mexicana, Linn; Torr. & Gray, Fl. 1, p. 61. On the lower Rio Grande, Texas ;
Schott. Westward to California; Parry.

Var. HISPIDA A, hispida, Gray, Pl. Fendl. p. 5, Sonora; Thurber. E

ARGEMONE FRUTICOSA, T'hurb. in Gray, Pl. Thurb. p. 306. La Peña, Coahuila; Thurber. |. E-

MzcowoPsm HETEROPHYLLA, Benth. in Lond. Hort. Trans. (ser. 2) 1, p. 407; Hook. Ic. t. 133. 3
Near the sea beach at San Diego, and at Santa Barbara, California; February; Parry. Our
specimens are certainly annual.

ESCHSCHOLTZIA CALIFORNICA, Cham.; Torr. & Gray, Fl. 1, p. 664. Monterey, and various
وس‎ E perte of California; Parry, T'hurber.
ESCHSCHOLTZ AA Hook. & Arn. Bot. Beechey, p. 320. Ravines along the Rio Grande
from n Frontera to Eagle Pass ; also in Chihuahua and Sonora ; February—April.

L ¥ CALIFORNICUM, Benth. l. c.; Lindl. Bot. Reg. t. 1679; Torr. & Gray, Fl. 1, p.
65. Gray places in various parts of Glaria Parry, Thurber. Most of the specimens
belong to the variety leiocarpum. —** Flowers ochroleucous, turning yellow in drying.”

PLATYSTIGMA LINEARE, Benth. l c.; Hook. Ic. t. 38; Torr. & Gray, Fl. l. c. Near San us
Obispo, California; April; Parry.

MECONELLA CALIFORNICA, Torr. dé Frim. $ in Frém. 2d Hep. p. Near San Francisco, California,
on damp rocks ; March ; Thurber. |

RowxEYA COULTERI, ضر‎ in Hook. Lond. Jour. Bot. 4, p. 4, 74, t. 3. Borders of dry streams
south of San Diego, California ; Parry. A showy plant, with large white flowers, which, in

some of the specimens, are 4 inches i in diametat. Ebe mature capsules and seeda are not ge

^H
E
a
1

mdy hills near Monterey, California; May; Parry. The specimens are in flower and fruit. :

Hueco mountains p و‎ miles east of E] .

ms dips Gray, PI. oig, = p 10. و‎ ravines Now ع‎ i

32 UNITED STATES AND MEXICAN BOUNDARY.

DENDROMECON RIGIDUM, Benth. |. c.; Hook. lc. t. 37; Torr. & Gray, l. c. (Tas. III.) In

various parts of California, Mud near the seacoast.
FUMARIACEZ.

CORYDALIS AUREA, Willd. var. Siliquis breviusculis, etc., Gray, Pl. Wright, 2, p. 10,
ravines, Frontera; Bigelow, etc. Hueco mountains, Texas, March ; Thurber.

DricENTRA? curysantua, Hook. & Arn. Bot. Beech. p. 320, t. 13 ; Torr. & Gray, Fl. 1, p. 665.
San Felipe, California; Parry. Between San Diego and the Rio Colorado; Schott. Monterey;
Mr. Andrews. A tall branching plant, (3—4 feet high,) with showy golden yellow blossoms in
panicles. It differs from Dicentra in the filaments of the two phalanges being united nearly to
the summit, where alone they are distinct ; in the dull verrucose horse-shoe-form seeds, which
are thick on the margin, and destitute of a strophiole or crest ; and, lastly, in a peculiar habit.
It may be considered as the type of a genus or sub-

Dry

The pollen is spherical, as in Dicentra.
genus, to which the name of Chrysocapnos would not be inappropriate.

CRUCIFERJE.

P CHEIRANTHUS ASPER, Cham. & Schlecht. in Linnaea, 1, p. 14, excl. syn. C. capitatus, Dougl. in
* ? Mook. Fl. Bor. Amer. 1, p. 38. Erysimum grandiflorum, Nutt. in Torr. & Gray, Fl. 1, p. 96.

The siliques are an inch and three-quarters long, nearly two lines broad, and much compressed:

Cotyledons distinctly accumbent,
2 original specimen of Nuttall's
: کي‎ gipe fruit and seeds have

لغ زو uor‏

Seeds narrowly winged, and sometimes partly in two rows.
اه‎ : E nu. is, in some eee اه‎ oblique.

۱ MACROCARPA. ی‎ macrocarpa, Nutt. in Torr. d Greg; Fl. ; p.. 16. Wet places,
San n Isabel, California; May ; Thurber.
ARABIS PATULA. Turritis patula, Graham ; boy. Pl. Fendl. p. I. Near the Mimbres, New
Mexico; April; Bigelow. Sonora; Parry.

CARDAMINE ANGULATA, Hook. Bot. Misc. 1, p. 343, t. 69; Torr. Bot. Whipp. Rep. p. 65. C.
paucisecta, Benth. Pl. Hartw. p. 297. California; Parry. The station not recorded, but pro-
bably Monterey.
| Eger RUNCINATUM, Gray, Pl. Wright, 2, p. 11, t. 11.

| creme; Bigelow, Parry, Schott.

Mountains of Chihuahua and

= Gray, Pl. Fendl. p. 7, and Pl. Wright, 1, p.'1; and 2, p. 10.
"opp ~ m; Bigelow. Guadaloupe Caton, Sonora; Thurber.
- Chihuahua ; Schott.

BrurerwtmS anas, Gray, l.c.. Ravines near E 1 Paso; April.

A e wor: dd

Gray, Pl. Fendl. in not. p. 2 ky 11
er ee etc. ز‎ - gras eene. 2

|
|
1
|

Parry. The petals are oniy slightly purple, often almost حنم‎ and yellowish Sa Le a ٢ 01
shox- P

— MÀ 33

يد

STREPTANTHUS LONGIFOLIUS, Benth. Pl. Hartw. p. 10; Gray, Pl. Wright, وه‎ wocky hills,
western Texas, Near the Rio Grande, Jaly ; Bigelow.

SrREPTANTHUS GLANDULOSUS, Hook, lc. t. 40; Torr. & Gray, Fl. 1, p. TT. Napa county, Cali-
fornia ; Thurber.

SrREPTANTHUS ARCUATUS, Nutt. in Torr. & Gray, Fl.l. c. Rocks on the seacoast, near San
Francisco, California; April; Thurber.

Nasturtium PALUSTRE, DC.; Gray, Pl. Wright, 2, p. 10. Moist places, western New Mexico,
Texas, and Chihuahua; April; Bigelow, Thurber. Variable in the length of the pods.

Nasturtium OBTUSUM, Nutt. l. c. Wet sandy places on the’ Rio Grande, from New Mexico to
Eagle Pass; Bigelow, Thurber. Specimens from the lower Rio Grande have the pods nearly
three-fourths of an inch long. :

N ASTURTIUM SESSILIFLORUM, Nutt. l. c. Brady's creek, Texas; Thurber.

NASTURTIUM CURVISILIQUA, Nutt. l. c. Napa county, California; Thurber. i

DARBAREA VULGARIS, Pr. Br. var. pedicellis angulo recto patulis, Benth. Pl. Hartw. p. 297.
On the Rio Mimbres, New Mexico ; Bigelow. This resembles the California plant in the style.

THELYPODIUM WRIGHTII, Gray, Pl. Wright, 1, p. 3. Plains and low grassy places, Leon
Springs, and along the Rio Grande, from forty miles below San Elceario to Eagle Pass; April—
Sept. ; Bigelow, Schott.

SISYMBRIUM CANESCENS, Nutt. in Torr. & Gray, Fl. 1, p. 85. On the Rio ti from El Paso
downward ; also, in New Mexico; Febr.—May. Leaves often coarsely dissected.

SISYMBRIUM DIFFUSUM, Gray, Pl. Wright, 1, p. 8. Rocks near the Limpia, Texas ; hills near
the Copper Mines; and rocky places, Puerte de Paysano; July—Sept.; Bigelow.

ERYSIMUM ASPERUM, DC. ; Torr. & Gray, Fl. 1. p. 95; Torr. Bot. Whipple, Rep. p. 66. Western
Texas, Chihuahua, Sonora, and California. An extremely variable piant, which may be referred
to several nominal species.

GREGGIA CAMPORUM, Gray, Pl. Wright, 1, p. 9,1. 1. Hills and prairies, on the Pecos and upper

Rio Grande; also, in Chihuahua and Coahuila. The cauline leaves vary from entire to repandly

toothed.

DRABA MICRANTHA, Nutt. in Torr. & Gray, Fl. 1, p. 109, El Paso, and near the Copper Mines,
March—April ; Bigelow, Thurber. Guadaloupe Pass and Santa Cruz, Sonora; Parry.
_ VESICAKIA DENSIFLORA, Gray, Pl. Lindh, 2, p. 145. Eagle Pass, and other places on the lower
Rio Grande; March; Schott.

Ton ARGYREA, Gray, l.c. Near Corallitus, Chihuahua ; ۰

VESICARIA STENOPHYLLA, Gray, l. 4 Pl. Wright, 2, p. 13. Hueco mountains, Texas ; Thurber. -

El Paso and Mule Springs; March—April; Bigelow. All the forms described by Gray oe
the collections. - : 5
VESICARIA RECURVATA, Engelm. in Gray, l. c. & Pl. Wright, l.c. Banks of ‘the ten, Texas,
April; Thurber. Tucson, and on the Gila, Sonora; March; Parry. —
VESICARIA PURPUREA, Gray, Pl. Wright, 2 .و‎ 14. Hueco mountains in oir سن‎ El Paso
and Cook's Springs ; March—April ; Bigelow, Thurber. Guadalo upe Pass, &c., Sonora; March;

5k

UNITED. ,STATES AND MEXICAN BOUNDARY.

3 VESICARIA LASIOCARPA, Hook.; Gray, i. c. p. 18, in not. Elm creek, valley near the Rio Grande; E

3 Ringgold barracks ; Capt. 五. E Smith. |

DITHYREA WisnzENI, Engelm. i» ۲۳۹۵/9۵ Mem. N. Mex. p. 11 ; Torr. in ۰ Hep. p. 280,

11. Prairies and sandy banks, El Paso to the Copper Mines ; از‎ Thurber. Overflowed

: banks of the Gila; March; Parry.

3 DITHYRÆA CALIFORNICA, Harv. in Hook. Lond. Jour. Bot. 4, p. 77, t.5; Englm. l. c. Dry river
ds of the Colorado, California; Schott.

Tunaspr FENDLERI, Gray, Pl. Wright, 2, p. 15. Organ mountains and Copper Mines, New

xico; April—May; Bigelow, Thurber. Guadaloupe Pass and Tubac, Sonora; l'ebruary—March;

arry. "The radical and lower cauline leaves are often denticulate.

SYNTHLIPSIS Grecen, Gray, Pl. Fendl. p. 116, in not. Hill-sides on the lower Rio Grande ;

'ommon near Eagle Pass ; March--September ; Schott.!

J HYMENOLOBUS PUBENS, Gray, Pl. Wright, 1, p. 9. Wet places near Rock creek ; July ; Bigelow,

"
۵ x wo
و ون‎ PE P On
A AT Ae د شا‎ ion
和

[per وح‎

mdi: near P Paso, and on the in mountains ; Nes Ober: tee Valley of the
a; Schott. Santa Cruz valley, Sonora; Thurber. The late secondary leaves on desee c
rom the Organ mountains are deeply pinnatifid, and the segments toothed. ی‎ ae
* LEPIDIUM ۷۷ 1105111, Gray, Pl. Wright, 2, p. 15. Ravines near El Paso and at the p =
Mines ; March—A pril.

. LEPIDIUM INTERMEDIUM, Gray, l. c. Ravines, Organ mountains; April; Bigelow.

1 lorr. & RA da p. 116. Mission of San Luis Rey,

JM, Nutt. dn 11٢ E E. l. c. With the last; Parry. San Isabel, Cali-
a; Faray. ; Thurber.
LEPIDIUM CALIFORNICUM, Nutt. l. c.; var. foliis bipinnatifidis; siliculis majoribus margine his-
dis. With the last, and in the interior of the country as far east as the mountains.

۳ The etd note is pee! furnished x n: friend, Dr. pae ay:

E

inato-subproductis. n Mesue: Coahuila ; : Balin, (No. 822, 2931 & 2242.) Berlandier's specimens, سي‎
or rtp only the young parts being at all hoary, and the leaves Jarger and rounder, yet apparently belong to the
وود‎ 8 pen on which this genus was founded "The silicles vary from four to seven lines in length, are
s broadly oval, with a pretty strong emargination at the apex, strongly ob-compressed, and with
bly only biennial. The specific character here given is to distinguish this species from the

Co. tt : 21 سم نه‎ TNE RA

ilibus ; petalis luteis ; sili-
ee د سو‎ March and April ; iiiter, (No. 710, 778, 1517,

^m: — or decumbent, about a foot in length, puberulent, as is
و‎ a, aves an i h o "i in length, 3-6 lines wide, laciniately -
ng , secund ; the pedicels fi ) eight long, recurved in fruit; style about
canescent desti esp ovary. Silicle three. lines in in یه‎ ani EN. slightly retuse at both amet or re

flat, marginless, on filiform tree سه‎
or one of e gt eo Veale, but its ات‎ strongly fattened contrary o

in habit. "—(4. Gray.)

BOTANY. 35

CAPSELLA BURSA-PASTORIS, Moench ; DC. Syst. 2, p. 283. San'Luis Rey, California, Doubt-
less an introduced plant.

HYMENOLOBUS pivaricatus, Nutt. in Torr. & Gray, Fl. 1, p. 117. California; Parry. The
station not recorded ; probably San Diego.

THYSANOCARPUS ELEGANS, Fisch. 6 Mey. Ind. Sem. Hort. Petrop. (1835) p. 50; Torr. & Gray,
Fl. 1, p. 118, (var. y.) Dana's Ranch, California; Parry. Napa, March; Thurber. Tucson,
Sonora; Parry. The last is the most eastern station known of a species of this genus.

THYSANOCARPUS CRENATUS, Nutt. in Torr. Æ Gray, l. c. Santa Ana, California, March; Parry.
Napa; Thurber. —

Tuysanocarrus LACINIATUS, Nutt. l. c. With the last. A more slender form than Nuttall’s
plant.

RHAPHANUS RAPHANISTRUM, Linn.; DC, Prodr. 1, p. 229. Naturalized abundantly on the
lower Rio Grande and in the adjoining Mexican States.

CAPPARIDACE,
CLEOMELLA ANGUSTIFOLIA, Torr. in Gray, Pl. Wright, 1, p. 11, in not. Gravelly places near
Presidio del Norte, September ; Bigelow.

CLEOMELLA LONGIPES, Torr. l. c. Saline plains, Sonora, June; Thurber ; Capt. E. K. Smith.
CLEOME 300538, Gray, Pl. Wright, 2, p. 16. With the last; Thurber. Near the oes

New Mexico; ۳

ORISTATELLA Tamestr, Torr. & Gray, Fl. 1, p. 123; Gray, Gen. TU. 1, p. نید‎ t. TT.
Victoria and San Antonio, Texas, — Schott.

PoLANISIA UNIGLANDULOSA, DC. Prodr. 1, p. 242 ; Gray, Pl. Wright, p. 10. Sandy places on
the Rio Grande; also on Cibolo creek and near the Copper Mines; April—July. Variable in
the size of the flowers. Seeds smooth and rough, often in the same specimen.

WISLIZENIA REFRACTA, Engelm. in Wisliz. Mem. N. Mex. p. 99; Gray,l. c. Alluvial Soils mms

near El Paso, May; Parry, Bigelow. Valley of the Gila; June; Schott. Sonora; Thurber.
ISOMERIS ARBOREA, Nutt. in Torr. & Gray, Fl. 1, p. 124.—(Tab. IV.) San Diego, California ;
May; Parry, Thurber. This interesting and handsome shrub deserves a place in our gardens.
| RESEDACEJE.
GLAUCESCENS, Cambess.; Gray, Pl. Wright, 2, p. 16. Common ‘along the Rio

Grant also i in Chihuahua and on the Gila.

VIOLACEE. .
Vrora apunca, Smith in Rees Cyclop ; Torr. Bot. Whippl. Rep. p. 68. V. longipes, 2

seacoast, San Francisco; Thurber. A form resembling Hartweg’s No. 1660.
VroLA هت00‎ Torr. ¢ ited 1 c. New Almaden, California ; April ; | Thurber
ATA, and San Diegi to

٣

p. 68. Summit of the a‏ ړو

mountains east of Sen T | j greatly. On the same sper
۱ base,

dn Torr. & Gray, Fl. 1, p. 140. Near Monterey, California; April; Parry. Eee

some of them are but

36 UNITED STATES AND MEXICAN BOUNDARY,

VIOLA CUCULLATA, Ait., Torr. & Gray, Fl. 1, 139. Wet places near the Copper Mines and
river Mimbres, New Mexico; April; Bigelow, Thurber.

10151121 LINEARE, Torr.; Gray, Gen. Ill. 1, p. 189, t. 82. New Mexico and western Texas; 1
west to Chihuahua and Sonora. It varies with the leaves broadly and narrowly linear, and
from entire to acutely denticulate.

eue eus
P Ee Mae SAIS

CISTACEJE.

HELIANTHEMUM scopaRIUM, Nutt. in Torr. & Gray, Fl. 1, p. 152; Benth. Pl. Hartw. p. ۰
- . Monterey and San Luis Rey, California; March—May; Parry.
了 BTTANTHEMUM ÜAROLINIANUM, Micha. Fl. 1, p. 307. Western Texas, August; Wright.

MU
$^ T. UA aS. Pu PEL UNO Für OT

ME

HYPEBRICACE E.

HYPERICUM rormosum, H. .B. .كل‎ Nov. Gen. & Sp. 5, p. 196, t. 160; Gray, Pl. Wright, 2, p.
l7. Wet places near the Copper Mines, New Mexico; June—July; Bigelow. Santa Cruz,
Sonora; Thurber.

Hypericum 50011581, Hook, Fl. Bor. Am. 1, p. 111. Mountains;east of San Diego, Califor-
nia; June; Parry. | :

. Exatine AMERICANA, Nutt.; Gray, Gen. Ill. 2, p. 220, t. 95. Hills near the Copper Mines,
New Mexico; Bigelow.

FRANKENIACEJE.

FRANKENIA GRANDIFOLIA, uiam. E: و‎ in Linnaea 1, p. 35; Torr. & Gray, Fl. 1, p. ۰
“Salt marshes and along the seashore near San Diego, California; June; Parry. Alluvions of

the Rio Gila, Sonora ; Schott. In Mr. Schott’s specimens the leaves are much narrower than
from the sea-coast.

CARYOPHYLLACEAE. .

8 ANTIRRHINA, Linn.; Torr. & Gray, Fl. 1, p. 191. Western Texas; New Mexico and
ی‎ to Sonora 0 California, ۱
eene PULCHRA, Torr. & Gray, Fl. 1, p. 615. Eastern dem of the mountains east of San

7 Bonon de Torr & Gray,l. c. Near Monterey, California ; May; Parry.
uced

۱ Pl. Wright, 2, p. 17. Ravine at the Copper Mines, New Mexico ;

1: | Torn. « 4: Gray, FL 1, 2 675. Blanco river, Texas ; Wright ;

same 9 ۱
\RENARIA DIFFUSA, EN. Sk. T » . 519; po p. Wright, 2, p. 18. Painted Camp; Bigelow.
= TENELLA, Nutt. in Torr. & Gray, PLI, بک ...119 کاو‎ tenuifolia, B. americana, Fenzl. in-
Ann. Wien, Mus. Monterey, California, May; Parry. Differs from A. tenuifolia in the less
1 a andi in the seeds, which are 4 to 5 times larger, as well as more عي ی‎ and
marked with n deu. ge ruge. ——

BOTANY. 37

STELLARIA NITENS, Nutt. in Torr. & Gray, Fl. 1, p. 185. S. moenchioides, Fenzl. l. c. Grassy,
moist places near San Diego; Parry. The flowers in our specimens are all apetalous.
STELLARIA MEDIA, J. E. Smith, Engl. Bot. t. 537. Santa Barbara and other parts of Califor-
nia ; introduced from Europe.
Paronycuta RAMOSISSIMA, DO. Mem. Paronych. p. 12, t. 4; Torr. & Gray, Fl. 1, p. 32. San
Luis Rey, San Diego, &c.; Parry, Thurber. The large, imbricated, scarious stipules give
this plant a silvery appearance. There are commonly 5 stamens, with as many intermediate
oblong scales which are about the length of the filaments,
PARONYCHIA Jamesin, Torr. & Gray, Fl. 1, p. 170; Gray, ۰ ۹ 1, p. 13, Ravines,
Rock creek; July; Bigelow. Ojo de Vaca, Chihuahua ; Thurber. .
PARONYCHIA LINDHEIMERI, Engelm. in Gray, Pl. Lindh. 2, p. 152. Middle and western Texas.
Near the last species. ۱
SPERGULARIA RUBRA, Pers. Syn. 1, p. 504; Gray, Gen. Ill. 2, p. 25, t. 107. Banks of the Rio
Grande and seacoast of California.
DRYMARIA GLANDULOSA, Bartl.; Gray, Pl. Wright, 2, p. 18. Hills and rocky places, Copper
Mines, New Mexico; August—October : 0۰
DRYMARIA FRANKENIOIDES, H. B. K.; DC. Prodr. 1, p. 395. Plains near the city of Chihuahua; :
October; Thurber. Arroyo near the Rio Grande, in Chihuahua; Parry.
DRYMARIA SPERGULARIOIDES, Gray, Pl. Fendl. p. ll. Ravines and low places near Lascuta; =
July; and near the Copper Mines; August; Bigelow. -
DRYMARIA EFFUSA, Gray, Pl. Wright, 2, p. 19. Hills near Santa Cruz, Sonora; September ;
Thurber.

PORTULACACE.

CALANDRINIA Menziesin, Hook. Fl. Bor. Am. 1, p. 223, t. 70. Grassy places near San E 1٣
March ; Parry. 0
۱ CALANDRINIA MARITIMA, Nutt. in Torr. & Gray, Fl. 1, p. 197. On the Coronados TEL on
the coast of California ; May; Thurber.

TRIANTHEMA MONOGYNA, Linn.; DO. Prodr. 3, p. 352. Plains of the Limpia, Texas ; July ;
` Bigelow. Magdalena and Sierra Verde ; Thurber, Schott.

0 TALINUM, AURANTIACUM, Englm. in Pl. Lindh, 2, p. 154 & 8. ANGUSTISSIMUM, in Gray, Pl.
Wright, 1, p. 14. Gravelly hills near Rock creek and Van Horn's Wells, Texas; Bigelow.
Sandy places, Sonora ; Schott, T'hurber. idm
. TALINUM PARVIFLORUM, Nutt. in Torr. & Gray, Fl. 1, p. 197. Stony hills at the Coppes Mind =
and El Paso, New Mexico ; also in Western Texas; Bigelow, Thurber.

TALINUM REFLEXUM, Cav. Gray, Pl. Wright, 2, p. 20. Dry prairies and hill-sides, San I
river up to the Pecos, and along the Rio Grande from El Paso to Presidio په‎ Nor = 3 Ju

TaLiorsts FRUCTESCENS, Gray, Pl. Wright, 1, p. 15, t. 3. Gravelly ills lo mg the Rio Grande,
from El Paso downward to the mouth of Great Cafion ; also on the Cibolo ; J une—August ;
Parry, Bigelow. E

SrRAGNEA UMBELLATA, Torr. Pl. Frémont, : dn ماب‎ Cour ١
. Napa county, —— Thurber. — 1

UNITED STATES “AND MEXICAN BOUNDARY.

. . OravTONIA PERFOLIATA, Donn; Torr. Gray, Fl. 1, p. 199 Torr .in Bot. Whippl. Rep. p. 10.
. Monterey, California; Parry. Var. PARVIFLORA, Torr. l. c. Napa county, California; Thurber.
CLAYTONIA VIRGINICA, Linn.; Torr. & Gray, Fl. 1, p. 198. Ojo x Francisco; February ;

SESUVIUM PORTULACASTRUM, Linn.; DC. Prodr. 3, p. 352. On the Rio Grande, from Doiia Ana;

1 New Mexico, to the Gulf; April—October. Common along the Gila; Thurber.

PORTULACA PILOSA, Linn.; Engelm. in Gray, Pl. Lindh. 2, p. 154; Pl. Wright, 1, p. 18.
. Howard's Springs and dry ravines near the Limpio mountains; July—August ; also near the

Copper Mines; Bigelow.
. PORTULACA LANCEOLATA, Engelm. l. c. Rocky places, Mule Springs, and Puerte de Paysano;

August—September ; Bigelow.

MALVACEAE.

MALVA BOREALIS, Walm; Gray, Pl. Fendl. p. 15. Monterey, California; Parry. |
MALVASTRUM AMERICANUM. Malva Americana, L. Sp. p. 968, (non Cavan.,) DC. Prodr. 1, p.

1 430. On the lower Rio Grande; Schott. Rugel collected this species on Key TS Ede.

(No. 89; Shuttleworth.) : :

MALVASTRUM Monroanum, Gray, Pl. Fendl. p. 21.

. M. fasciculata, Nutt. in Torr. & Gray, Fl. 1, p. 225.

Malva monroana, Dougl. in Bot. qui +
Near San Diego, Californias

` Parry.

MarvasrRUM THURBERI, Gray, Pl. Thurb. p. 307.
I can find no من وی‎ DATES for distinguishing this from M. Monroanum.

G Pl. Fendl. p. 24. Gravelly and sandy plains on the Limpia,

eek, and Rio nite m in New Mexico, Chihuahua, and on the Gila.
ALVASTRUM PEDATIFIDUM, Gray, Pl. Wright, 1, p. 17. Frontera, Texas; March; Bigelow,
` Parry.
: MALVASTRUM LEPTOPHYLLUM, Gray, Pl. Wright, 1, p. 17. Ojo de Vaca, &c.
Thurber. Our specimens are smoother than Wright’s plant.
CALLIRIHOE INVOLUCRATA, Gray, Pl. Fendl. p. 15, Gen. Ill. t. 117. Moist grotiddi, R of
the Pecos, and between Eagle Pass and Laredo, Texas. March 一 April ; Schott.
SIDALCEA HUMILIS, Gray, l. c. p. 23. Sida malveeflora, Hook. & Arn. Bot. Beechey, p. 326,
Lindl. Monterey and near Santa Barbara, California ; Parry. San Diego, Thurber. m
MALV#FLORA, Gray, Pl. Wright, 1, p. 16. Sida malveflora, Mog. & Sesse. DC.
: gehe of the Limpia and hills at the Copper Mines; July; Bigelow. Ojo
8; ی‎ E Podrero, Sonora ; J une; Schott. It sometimes

Santa Cruz Yaliay, Sonora; July ; T'hurber.

Chihuahua ;

LICAULIS, Torr. & one Fi. r p. 2 Rocky and gravelly Bila, Howard dal ede and
i. 8 yy elie and Muerte ; pari p

nd ; Bigelow, Pecks,
"L Wright, 2, p. 19. Crevices. of rocks and ravines
a

|
ü
8
1 77

BOTANY. ۰ 39

SIDA LEPIDOTA, Gray, l. c. p. 18. Plains near Leon Springs; September ; Bigelow. Cocos-
pera, Sonora, and east of Sierra Madre; July—September ; Schott.

SIDA PuysocaLYx, Gray, Pl. Lindh. 2, p. 163. Hills between Van Horn's Wells and Muerte ;
May—July ; Bigelow. Near Laredo; Schott. Fronteras, Sonora, and near the city of Parras,
State of Coahuila ; Thurber.

Sıma roxorPES, Gray, Pl. Wright, 1, p. 31. San Pedro valley and on the Cibolo creek, also
near Leon Springs; July—September : Parry, Bigelow.

Sma Extrorm, Torr. € Gray, Fl. 1, p. 232. Rocky places on the Limpio and at Van Horn's
Welis, July; Bigelow. A dwarf form was found by Thurber at the Copper Mines.

ANoDA HasTATA, Cav.; Gray, Gen Ill. 2, t. 124. Valley of the Cocospera, Sonora ; Septem-
ber— October ; Schott. Mount Carmel, near the Rio Grande, Chihuahua, November; Parry,

ANODA PENTASCHISTA, Gray, Pl. Wright, 2, p. 22. Zuiii mountains, August—September ;
Bigelow. Presidio del Norte and further down the Rio Grande; Parry. Sonora; T'hurber.

ANODA WRIGHTII, Gray, Pl. Wright, 2, p. 22. Dry ravines along the upper Rio Grande, also
rocky places on-the Limpia ; Bigelow.

ABUTILON HOLOSERICEUM, Scheele in Linnea, 21, p. 471. Rocky hills between Painted Camp
and Wild Rose Pass, also on Turkey creek ; July—November ; Bigelow.

ABUTILON Trexense, Torr. & Gray, Fl. 1, p. 231; Gray, Pl. Wright. Rocky hills on the

Cibolo and mountains of Muerte, &c.; July—August. Valley of the Cocospera and Magdalena,

Sonora; Schott, Thurber. . i

` ABUTILON CRISPUM, Don.; Gray, Gen. Ill. 2, t. 126. Bogenhardia crispa, ** Reichenb. Repert.
Herb. 200, No. 1636." Rocky hills and ravines along the Rio Grande and its tributaries.
Bachimba, Chihuahua, and Magdalena, Sonora; Thurber. Specimens from the latter station
have remarkably villous stems.

ABUTILON THURBERI, Gray, Pl. Thurb. p. 307. Shady places, Magdalena, Sonora ; October ; 1
Thurber.

ABUTILON PARVULUM, Gray, Pl. Wright, 1, p. 91. Flounce mountains and rocky hills between
Van Horn’s Wells and Muerte ; June—July; Bigelow.

WIssADULA MUCRONULATA, Gray, Pl. Berland. ined. On the Rio Grande, below Reynosa,
October ; Schott. Leaves cordate, entire, green, and smoothish above, paler and somewhat
velvety underneath. Peduncles paniculately several-flowered, the flowers very small, with
obovate petals. Carpels obovate, smoothish, with 2 short horns, 4—5 seeded.

SPH#RALCEA ANGUSTIFOLIA, Spach; Gray. Pl. Wright, 1, p. 21. S. stellata, Torr. & Gray, Fl.

1, p. 228. Moist, alluvial soils. Western Texas; June. On the Fronteras, Sonora ; uec ims

November ; Thurber, A broad-leaved form was found by Schott at Eagle Pass.
— HASTATULA, Gray, l.c. p. 17. On the Rio Pecos; Thurber. * o
SPHÆRALCEA INCANA, Torr. in Gray, Pl. Fendl. p. 23; Pl. Wright, 1, p. 21. EI Paso;
Parry; and Laguna los Putos, Chihuahua ; Thurber, San Elceario, &c.; Bigelow. Var. pis-
secta, Gray, l. c. p. 21. Chihuahua; Schott, Thurber. E

SPH.ERALCEA FENDLERI, Gray, l. c. Low grounds سه‎ ‘the Gila; Schott. ‘Santa Cruz, :

Sonora ; Thurber.

Pavonta Wnianri, Gray, Gen. Ill. 2, p. 16,4. 190; Pl. Lindh. 2, p. 161. Shady borders o F

the tributaries of the Vn Rio Grande ; Schott, Bigelow, :

«ّ

4 ون

=
4i
$
E
E

plant as the type of a distinct section or, perhaps, genus, differing from Kosteletzkya in the erect

40 UNITED STATES AND MEXICAN BOUNDARY.

۳ Matvaviscus DRUMMONDII, Torr. & Gray, Fl. 1, p. 230; Gray, Gen. Ill. 2. t. 131. South-
; ; western and central Texas ; T'hurber, Schott. The baccate fruit is red when ripe.

: : KosTELETZKYA (ORTHOPETALUM) PANICULATA, Benth. Pl. Hartw. p. 285. Mountain pass near
E Cocospera river; September; Schott. Corolla, deep rose color. Bentham regards this

convolute petals.

1112150908 Coutrert, Harvey im Gray, Pl. Wright, 1, p. 23. Western Texas, near the Rio
Grande; June—October.

HIBISCUS DENUDATUS, Benth. Var. INV ATUS, Gray, l. c. p. 23. Gravelly table-lands
of the Rio Grande, from El Paso n to the Cibolo ; ; May—September ; Parry, Bigelow.

HIBISCUS CARDIOPHYLLUS, Gray, l. c. p. 22. Dry limestone hills near the mouth of the Pecos ,
September— October ; Schott, Bigelow.

THURBERIA THESPESIOIDES, Gray, Pl. Thurber, p. 308. (Tas. VI.) Cañon near Cocospera and
Ymuris, Sonora; October— November ; Schott. Mr. Schott informs me that this plant is called
Algodoncello by the Sonorians. ۱

BYTTNERIACE X.

.. Mzrocura PYRAMIDATA, Linn; Gray, Gen. Ill. 2. p. 134 and Pl. Lindh. p. 165. Western
Texas; Schott, Bigelow.
MELOCHIA TOMENTOSA, Linn; DC. Prodr. 1, p. 490. On the lower Rio Grande; Schott.
WALTHERIA DETONSA, Gray, Pi. Wright, 2, p. 24. Magdalena, Sonora; Thurber.
0 ied Gro 2, p. 88. t. 135. Ravines of Devil's river and plains
Ho | Spring ; also at thi Een of the- éco] September—October ; Bigelow.
1 AXENIA PUSTILA, حدق را‎ Pl. Wright. 1, p. 24, 2, p. 24. Dry rocky ravines, Van
^ Horn’s Wells, June; Parry ; Sonora ; Thurber.
AYENIA MICROPHYLLA, Gray, l. c. Bodo hills of the Rio EGER near and سنا‎ El Paso ;
Parry, Bigelow. .

TILIACEAE.

CORCHORUS PILOLOBUS, Link; Gray, Pl. Wright, 2, p. 24. Gravelly beach of the Island of
dae . Lost Rocks, lower Rio Grande, September ; Schott. Santa Rosa valley ; Parry.

LINACEJE;

ICAULE, Hook. in Torr. & Gray, Fl. 1, p. 698; Engelm. in Gray, Pl. Wright, 1. p.
Limpio; July; Bigelow.
Ver LINUM BERLANDIERI, Hook. Bot. Mag. t. 3,480 : Engelm. l.c. Live Oak creek and rocky
| : Te. on the Rio Grande; also in Chihuahua.
NUM PERENNE, Linn ; "Engen l. c. Plains between the bimpia and the Rio Grande, and
westward to the Gila.
RIGIDUM, Pursh; Engelm. l.c. Gravelly hills from El Paso to San Eleazario ; April—

m. in Gray, Pl. Lindh. 2, p. 232. Rocky places on the Limpia and

بيصي تادب نها
"Es wu SE‏

BOTANY. 41

OXALIDACE.

Oxanrs BERLANDIERI (n. sp.): caulescens, pilosa; foliis trifoliolatis, foliolis oblongis v. obovato-
oblongis plerumque emarginatis terminali valde petiolulato; pedunculis axillaribus subtermi-
nalibusque 3—5-floris folium subsquantibus erectis; petalis flavis. Sandy places in the
prairies between Laredo and Ringgold Barracks, June; Schott. Rio Nueces, Berlandier, No.
1094 and 2524. Stems arising from a slender subterranean rhizoma, erect, 4 一 6 inches high,
branching towards the base. Lateral leaflets 3—4 lines, terminal 5—6 lines long. Filaments

“unequal, 5 of them hairy, twice as long as the alternate smooth ones. Cells of the ovary about

4-ovuled. Capsule subglobose-ovate, scarcely as long as the sepals, strongly 5-angled ; the cells
one-seeded. Seeds strongly tuberculose-ribbed. Allied to O. psoraleoides. The only species of
this section hitherto found within the limits of our Flora. ۱ ۱ ۱

OXALIS DICHONDIUEFOLIA, Gray, Pl. Wright. 1, p. 21. Sides of dry, calcareous hills near the
lower Rio Grande ; Schott. Plains of Los Muros; Bigelow.

OXALIS Drummonpil, Gray, Pl. Wright. 2, p. 25. O. vespertilionis, Torr. & Gray, Fl. 1, p.
679. Plains between the Leona and lower Rio Grande; also in Sonora, near the San Pedro
river.

OXALIS VIOLACEA, Linn.; Terr. & Gray, Pl. 1, p. 211. Between the Pecos and Devil's river and
the Rio Grande; Copper Mind New Mexico; Bigelow, Parry. only taller than the eastern
plant, but with smaller and more numerous flowers.

Oxatis WRIGHII, Gray, Pl. Wright. 1, p. 27, & 2, p. 25. Near Rock Creek, and Presidio
del Norte, July—August ; Bigelow. Santa Cruz valley, Sonora; Thurber.

OXALIS pEcaAPuyLLA, H. B. K.; Gray, ۲۰ c. 2, p. 25. Copper Mines, New Mexico, August ;
Bigelow, i

OXALIS STRICTA, Linn.; Torr. Fl. N. York, 1, p. 123. Rocks along the Leona and sandy
banks of the lower Rio Grande, March—November. E

GERANIACEJE.
GERANIUM CAROLINIANUM, Linn.; Torr. & Gray, Fl. 1, p. 207. Central and western Texas;

also in Chihuahua and various parts of California.

GERANIUM CÆSPITOSUM, James ; Gray, Pl. Fendl. p.25. Organ mountains; Bigelow. Hills
at the Copper یسو‎ Tupe August; Bigelow, Thurber. “Flowers usually purple, but

sometimes quite white." Thurber.
EnoDIUM TEXANUM, Gray, Gen, Ill. 2,1. 151. Northern New Mexico, western Texas
borders of the Gila. ui

ERODIUM CICUTARIUM, Herit. ; DC. Prodr. 1 EA 616. Common in New Mexico and s m
Sonora and California ; probably introduced by the Spaniards. zd
ERODTON MACROPHYLLUN, Hook. & Ars. Bot. تیم‎ 327. Cali

being ecarcely more y an inch bu‏ مور

6k

42 UNITED STATES AND MEXICAN BOUNDARY.

LIMNANTHACEZ:..

LIMNANTHES Doveras, R. Br.; Torr. & Gray, Fl. 1, 72 209, Benicia, California, March ;
Thurber.

ZYGOPHYLLACEJ.

工 ARREA MEXICANA, Moric. ; Torr. in Emory’s Rep., p. 138, t. 3; Gray, Gen. Ill. t. 147. Along
the boundary line from the Rio Grande to California.
PoRLrERA ANGUSTIFOLIA, Gray, Pl. Wright. 2, p. 28. Guiacum angustifolium, Engelm. Plains
. near Eagle Pass, Bigelow, Deadman's Hole; Parry. |
FAGONIA 041170871104, Benth. Bot. Sulph., p. 10.; Torr. in Pacif. R. R. Ex., Expe. pl. 6, p :
359, ¢. 1. Rocky and hill sides of the lower Colorado, California, February ; Schott. ee
GuracuM COULTERI, Gray, Pl. Thurb. p. 312. Hills between Rayon and Ures, Sonora;
Thurber. :
KALLSTRGMIA GRANDIFLORA, Torr. in Gray, Pl. Wright. 1, p. 26. Borders of the Rio
in western Texas; Chihuahua and Sonora, July. Mr. Schott states that it is called Mal

westward throughout the Mexican States and southern California.
! . RUTACEÆ.

KORBERLINIA SPINOSA, 2 اتيك‎ Gray, Pl. Wright. 1, p. 30, & 2, p. 26. Rich soils in various E
places along the Rio | e and in the Mexican States westward, May—August. “lin " آ‎

| m favorable situations this ae sometimes attains the height of 8 or 10 feet." Thurber.
pese ` Proanum MzxicANUM. Gray, l. c. 1, p.30, adnot. Low places near the Eagle mountains, ©
June; Bigelow. El Gallo, Chihuahua, November ; Thurber.
` THAMNOSMA Texanum. Rutosma Texanum, Gray, Gen. Ill. 2, p. 114, t. 155. Hills between
the Pecos and Devil's river and the Rio Grande ; also along the latter river from El Paso down-
ward, and in western New Mexico, Sonora, etc., flowering throughout the season,
THAMNOSMA MONTANUM, Torr. & Frem. in Frem. 2d Rep., p. 313. Sierra Tule, Sonora ;
fue Schott. San Felipe, California, May ; Thurber.

. ASTROPHYLLUM pumosuM, Torr. in Bot. Popes Report, p. 161. Mountains about thirty-five
miles bek w El Paso, i in Chihuahua, July (in fruit); Bigelow. Borders of the Rio Mimbres, Dr.
Henry, United States army. Western slope of the Sierra del Pajarito, Sonora, July, (just past
flowering,) Schott, (not on the Rio Grande, as erroneously stated in the Botany of Captain Pope’s
1 Report.) Since the description quoted above was written, other specimens of this remarkable
۱ plant have been received, but none of them with perfect flowers. In one or two instances
withered, imperfect flowers were found, and we can now give a nearly complete character of the
i genus, which rather belongs to the Diosmez than to the true ۰

ASTROPHYLLUM.

Calyx 4—5-sepalus, deciduus; sepalis obtusis. Petala 4—5, obovata. Stamina 8—10.

by the Sonorians
KALIsTR@MIA MAXIMA, Torr. & Gray, Fl. 1, p. 213. Common along the Rio Grand و‎ 8
d.
|
` Ovarium sessile, disco hypegyno 8—10-lobo insidens, 4—5-lobum, 4—5-loculare ; loculis

BOTANY. 43

2-ovulatis. Styli tot quot carpella, coaliti, demum inferne distincti, Stigma capitatum, 4—5-
lebatum.. Capsule abortu sepius 2, basi subcoalitae, sessiles, semibivalvia, Semina plerumque
solitaria subglobosa. Frutex humilis, graveolens, ramosissimus; foliis oppositis petiolatis,
palmatim 5—10-foliolatis ; floribus albis in axillis summis solitariis vel subumbellatis.

A shrub 3 to 6 feet high, with numerous pubescent, crowded, opposite branches. Leaves
opposite, (rarely sub-opposite), pubescent, exstipulate ; petioles, 6—10 lines long ; leaflets mostly
longer than the petioles, marked (as are also the petioles and younger branches) with prominent
conspicuous glands. In all the specimens from the Rio Grande there are 6 to 10 leaflets, which
are narrowly linear (scarcely a line wide), and sub-coriaceous ; in those from Sonora there are 5,
which are twice as broad, and thinner. "These glands, on the leaflets, are somewhat distant and
marginal. Flowers perfect. Pedicels 8 一 10 lines long, mostly near the extremity of the
branches, either solitary or 2 to 4, and somewhat umbellate. Sepals 4 一 5, short and semiovate,
ciliate on the margin. Petals inserted at the base of the shorter stamens, 3—4 times as long as
the calyx, obovate, narrowed at the base. Stamens mostly 8; filaments naked, the alternate
ones longer, compressed ; anthers ovate, fixed by the base, opening longitudinally. Disk
produced into 8-10, nearly equal glaudular lobes, which are without pores. Ovary hairy,
4—5-lobed, 4—5-celled ; the cells produced above into a short obtuse beak, exterior to the
style; each cell containing 2 collateral hemitropous ovules. Styles short, at first combined,
but afterwards (and especially in the unfructified ovaries) distinct below; stigma of 4—5
capitate lobes. Fruit capsular; only two of the carpels usually ripening; these are broadly
ovate, compressed, dotted with brown impressed glands, mucronate with the base of the style; .
the beak, which in the ovary was at the summit of the carpel, becoming, in the mature fruit, a
dorsal tooth. At maturity the carpels open nearly the whole length of the dorsal suture, and
down the back as far as the tooth. The endocarp also separates almost entirely from the epicarp.
Seeds mostly solitary in each cell, globose-ovate, black and shining. Embryo nearly straight in
the axis of fleshy albumen ; cotyledons roundish-ovate, flat, with a very short radicle. A very
distinct genus.

PITAVIA (GasrRosrTYLA) DUMOSA, Nutt. in Torr. & Gray, Fl. 1, p. 215. San Diego and San
Pasqual, California, Febr.; Parry, Thurber. A shrub 2—3 feet high. Leaves pungent when
chewed. Cymes 3-flowered, terminal, and on short lateral spurs. Calyx 4-parted ; the segments
ovate, acute, coriaceous, Petals white, equal, oblong, sparsely dotted. Stamens 8; filaments -
subulate ; anthers somewhat reniform, innate, retrorse. Ovary solitary, seated on a fleshy
sub-globose slightly lobed disk. Stigma capitate. Fruit 1—2-seeded, testa thick and coriaceous.

‘Embryo curved, in rather thin fleshy albumen. This plant (as was remarked in the Flora of

N. America) is hardly a congener of Pitavia. {t may form a sub-genus, distinguished pE its
hermaphrodite flowers, solitary ovary, lateral style, and curved embryo. |

ZANTHOXYLUM CAROLINIANUM, Lam. ; Torr. & Gray, Fl. 1, p. 24. Var. foliis مو‎
ovatis, &c. ; Gray, Pl. Wright. 1, p. 30. Head waters of the Nueces ; also ravines on Devil's
river and near Eagle Pass, Texas, March (in flower)—September (in fruit ); Bigelow.

ZANTHOXYLUM PrEROTA. H. B. Kth. Nov. Gen. & Sp. 6, p. 3. Rocky places. and hills near
Santa Rosa, Cohahuila. February; Bigelow. Fort McIntosh, on the Rio Grande, May (fruit); -
Schott.

PrELEA TRIFOLIATA, Linn.; Torr. 3 Cow: Fl. 1, p. 225, and B. p- 680. pee aA Fron-

1

44 UNITED STATES AND MEXICAN BOUNDARY.

tera, Texas, and on the Mimbres, New Mexico; Bigelow. It is usually a shrub of from 3 to 6
feet high, but it sometimes occurs twenty feet.

PTELEA ANGUSTIFOLIA, Benth. Pl. Hartw. p. 9; Gray. Pl. Fendl. p. 28. Limestone hills
around Ringgold Barracks; Schott. Mountain ravines, El Paso; Thurber.

COCHLOSPERMEL.E.

AMOREUXIA ScHEIDIANA, Planch. in Hook. Lond. Jour. Bot, 6, p. 140, t. 1; - Pl. Wright.
2, p. 26, t. 12, 4. Santa Cruz valley, Sonora; Thurber.

AwMoREUXIA Wricutt, Oray, l.c. A. Scheidiana, Pl. Wright. 1, p. 29, t. 3. B. excl. syn.
In rich soil, Eagle Pass, June; Schott. Hills and plains near the mouth of the Pecos, Octo-
ber (fruit); Bigelow.

|
|
|

ANACARDIACEJE.

Raus VIRENS, Lindh. in Gray, Pl. Lindh. 2, p. 159; Pl. Wright. 1, p. 31. Limestone rocks
on Devil's river, and at the mouth of the Pecos; Bigelow.

REUS MICROPHYLLA, Engelm. in Gray, Pl. Wright. 1, p. 31. Ravines along the Rio Grande,
from El Paso down to Eagle Pass; also in Chihuahua and Sonora.

Raus rRILOBATA, Nutt. in Torr. & Gray, Fl. 1, p. 219; Gray, Pl. Wright. 1, p. 31. Northern
p New Mexico and the Valley of the Rio Grande; also in Sonora and California. A form with
icm the leaves velvety-pubescent occurs at the Copper Mines and on the Organ mountains, New
Mexico.

RUS coPALLINA, var. LANCEOLATA, Gray, Pl. Lindh. 2, p. 158. Hills and rocky places between
ihe apis: and the Rio Grande, July ; Bigelow.

| sopENDRON, Linn. ; Torr. & Gray, l.c. A variety with narrow leaves was found
is on ‘the Sie del Pajarito, Sonora, by Schott ; and at the cañon of Guadaloupe, by Capt. E. K.
52 Smith.

RHUS DIVERSILOBA, TER & Gray, l.c. R. lobata, Hook. Fl. Bor.- Amer. L 9: 1371 7
Lindl. Bot. Heg. (n. ser.) 31, t. 38. In various parts of California ; frequent.

Pistacta Mexicana, H. B. K. Nov. Gen. & Sp. T, p. 22,1. 608. Rocky ravines near the mouth
of the Pecos, western Texas, October (fruit); Bigelow. A small tree.

LITHRÆA LAURINA, Walp. Kepert. 1, p. 550; Torr. Pl. Whippl. l. c. p. 13. Rhus (Malosma)
laurina; Nutt. in Torr. & Gray, Fl. 1, p. 219. (Tas. VIL) San Diego, California; Parry.

STYPHONIA INTEGRIFOLIA, Nutt. in Torr. & Gray, Fl. l. c. & Sylv. 3, p. 4, t. 82; Torr. in Pacif.

R. Road Expl. 1, Bot. p. 8, t. 2. Santa Barbara and San Diego, California ; mar Thurber. .
Leaves very variable in size and outline, especially upon the young shoots. 8 serrata (Nutt. n is
not distinct.
SCHINUS MOLLE, Linn. p^ p. 1467. Lower California, near the boundary line; Parry; and
e Mission of San Luis Rey ; Thurber. It is common also in all the Mexican Biatan, but is
y not indigenous. Mr. Thurber informs me that in California it is called Pepper Tree
8, the berries having precisely the taste of the common black pepper.

SIMARUBACE.

look. Bot. Misc. 1, p. 271, ¢ 56; Gray, Gen. Ill. 2, t. 158. Dry plains —
ng the Rio dimer موی‎ Parry, ase Mier ٠

BOTANY. 45

1101۸0۸ 11۸ Emoryi, Gray, Pl. Thurber. p. 310. (Tas. VIII.) Near Sonoita, Sonora, August
(with fine fruit) ; Schott. The description of this remarkable plant, by Dr. Gray, is so complete
and so accurate that I have nothing to add but a good figure by Sprague.

VITACE.

Vitis BIPINNATA, Torr. & Gray, Fl. 1, p. 243. Banks of Escondida creek, near Eagle Pass,
and at Rock creek, western Texas, July—September (in fruit) ; Bigelow.

Viris و2613‎ Nutt. in Torr. & Gray, l. c. On the lower Rio Grande, and in ۸۸م‎ valley,
Santa Magdalena, Sonora; Schott. ‘‘ It is mixed with cochineal and used by the Mexicans to
dye red.”

Vitis mstivauis, Fl. 2, p. 230; Torr. € Gray,l.c. Central Texas; Wright. On Mount
Ben Moore, New Mexico; Bigelow. -

Vrris CALIFORNICA, Benth. Bot. Sulph, p. 10. San Diego and other parts of California, July;
Parry. Sonora; Thurber, Capt. E. K. Smith.

AMPELOPSIS QUINQUEFOLIA, Micha. Fl. 1, p. 159. On the Mimbres and at the Copper Mines,
New Mexico, June—July ; Bigelow.

RHAMNACEA. em

ADOLPHIA INFESTA, Meisn. Gen. p. 70; Gray, Pl. Wright. 1, p. 34. Monterey and near San
Diego, California, March—May ; Parry. Hills near Rock creek, Texas; July (flowers and
fruit); Bigelow, Parry. :

CgANOTHUS GREGGI, Gray, Pl. Wright. 2, p. 28. Guadaloupe Pass; April; Sonora ; Parry;
and San Luis mountains in the same State; Capt. E. K. Smith.

CEANOTHUS OVALIS, Torr. & Gray, Fl. 1, p. 265. Dry ravines, valley of the Pecos, Texas,
and San Felipe; Bigelow.

CEANOTHUS DIVARICATUS, Nuit. in Torr. & Gray, l. c., var. EGLANDULOSUS, Torr. in Bot. Whipp.
Hep.l. c. p. 15. Mountains eastof San Diego, California, June (fruit); Parry. ~

CEANOTHUS SOREDIACUS, Hook. & Arn. Bot. Beechey, p. 329; Torr. & Gray,l. c. On the
conglomerate and sandstone hills above San Diego; Parry. C. Lobbianus, Hook. Bot. Mag. t.
4811, seems to be hardly distinct from our plant.

CEANOTHUS THYRSIFLORUS, Eschsch. im Mem. Acad. St. Petersb. 1826; Torr. & Gray, Fl. l. c.
Common in the neighborhood of Monterey and San Diego, as well as in many other parts of Cali-
fornia, where it is known by the name of California lilac.

CEANOTHUS SPINOSUS, Nutt. l. c. Near Santa Barbara, California; March; Parry, Flowers آ‎
white, with a tinge of blue. Leaves sometimes distinctly toothed at the apex. The branches ۱
are not thorny in our specimens.

CEANOTHUS CUNEATUS, Nutt. l.c. C. macrocarpus, Nutt. l. c. Near San Luis Obispo wa oats
Barbara, California, April; Parry. There can be no doubt of the propriety of uniting the
two species here quoted. We have specimens collected from numerous localities, which اس‎ a 00
transition from the one to the other. ae

CEANOTHUS RIGIDUS, Nutt. l. c.; Benth. Pl. Hartw. p. 302; Lindl. & Pari. Fl, Gard. 1, p. T4, a
t.51.. (Taste LA.) On dry hills, Monterey, California, April ; Parry. An evergreen: shrub |
about 5 feet high, with rigid branches. The leaves vary greatly in form, being somet mes
broadly obovate and often deeply emarginate. : b LE

اک(

il: ۹ d
٨ ٢ 人
人 ٢ a اپ‎

406 UNITED STATES AND MEXICAN BOUNDARY.

OCEANOTHUS DENTATUS, Torr. & Gray, Fl. l. c.; Lindl. & Pact. Fl. Gard. 1, p. 11, t. 4.
(TABLE X.) Sandy soils around Monterey, California; Perry. A low bush. Our specimens
correspond with Douglas's plant, except that in the latter the flowers are said to be white,
whereas they are blue in the former. They had, no doubt, faded in the specimens from which
the original description was drawn. ۱

CEANOTHUS CRASSIFOLIUS, (n. sp.): fruticosus, erectus ; ramulis teretibus albo-tomentosis ; foliis
ovatis obtusiusculis integerrimis crassis penninerviis subtus dense albo-tomentosis glabris minute
papillaris opacis; thyrsis subsessilibus brevibus subumbelliformibus densifloris. (TABLE XI.)
Mountains south of Los Angelos, February ; Parry. A shrub 4 to 5 feet high, much branched.
Leaves 1—1} inch long, remarkably thick and coriaceous, revolute on the margin when dry,
pale dull green above and appearing rough like shagreen under a lens; petiole 2—3 lines long,
thick. Clusters of flowers terminal, and in the axils of the upper leaves. Calyx and corolla
white. Ovary marked with 3 minute protuberances. Fruit not known.

FnRANGULA OAROLINIANA, Gray, Gen. Ill. 2, p. 178, t. 167. Rhamnus Carolinianus, Walt. ۰
Car. p. 101. Banks of streams, Los Muros, &c., Western Texas; Bigelow.

FnRANGULA CALIFORNICA, Gray, l. c., & Pl. Wright. 2, p. 28. Mountain ravines near Camp
Bache, Western Texas; Bigelow. Sonora; Schott, Capt. E. K. Smith. Monterey and San
Diego, California; Parry. Variable in the form and pubescence of the leaves. We quite agree
with Dr. Gray, that this species includes Rhamnus Californicus, Esch., R. oleifolius, Hook., R.
laurifolius, Nutt. R. leucodermis, Nutt., and R. tomentellus, Benth.

RHAMNUS CROCEUS, Nutt. in Torr. & Gray, Fl. 1, p. 261. Around Monterey and San Diego,
also on the mountains of southern California; Parry. The leaves vary from § to 14 inch in
length, and from obovate-oblong to broadly ovate. The under surface is always yellowish.
The fruit in Dr. Parry's specimens is all 2-seeded.

ZizyreHus PARRYI, (n. sp.): glabra; ramis spinosis; foliis obovatis integerrimis sub-coriaceis
penninerviis; pedunculis unifloris, fructiferis recurvis; drupa sub-exsucca ovata apiculata 3-locu-
lare; nuce crassissima ossea 3-loculari 3-sperma, Gravelly ravines near San Felipe, California,
June (in fruit); Parry. It was afterwards found at the same place by Mr. Thurber. A shrub

46 feet high, much branched; the branches smooth, flexuous, and armed with numerous

slender leafy spines. Leaves 8—12 lines long, obtuse or sometimes retuse, abruptly tapering at
the base into a short petiole; stipules minute, subulate, deciduous. Only a solitary flower was
found. This was minute and pentamerous, the very small concave petals partly embracing the
stamens. Peduncles solitary, or sometimes 2—3 together, arising from short branches or spurs;
those of the fruit about half an inch long and recurved. Drupes 6 一 8 lines long, with a short

abrupt point, lemon yellow, the pulp very thin. Nutshell extremely thick and hard. Seeds
` narrowly oblong. Albumen very thin. Embryo linear, oblong, green. This must be a very
rare plant, as it has been found but twice, and in both cases near the same spot. In its nearly
dry 3-celled fruit and extremely thick shell it resembles Z.. xylopyra of India,

ZIZYPHUS OBTUSIFOLIA, Gray, Gen. Ill. 2, p. 170, t. 163; & Pl. Lindh. 2, p. 168. Dry hills
and banks from E] Paso to Eagle Pass, on the Rio Grande; March—June ; abundant.

ZIZYPHUS LYCIOIDES, Gray, l. c. Near Hiceario, on the Rio Grande, June (in fruit); Parry.
Valley of the Gila; Thurber. Dr. Gregg found it between Matamoras and Mapini. The fruit
is black and somewhat astringent, but edible.

BOTANY. 47

CONDALIA sPATHULATA, Gray, Pl. Wright. 1, p. 32. Ravines on the Rio Concha; Bigelow.
Eagle Pass, Texas, and Sonora ; Schott.

CONDALIA oBovaTA, Hook. Ic. t. 287; Torr. & Gray, Fl. 1, p. 685 ; Gray, Gen. Ill. 2, t. 164.
Sandy plains, Eagle Pass, and upward to El Paso, April; Bigelow. Tucson, Sonora; Parry.

CoLUBRINIA TEXENSIS, Gray, Pl. Lindh. 2, p. 169; Pl. Wright. 1, p. 33. Plains between the
Pecos and the Rio Grande. The leaves on the young shoots are sometimes 4 inches long and 3
inches wide, but on the older branches they are much shorter.

KARWINSKIA HUMBOLDTIANA, Zucc.; Gray, Pl. Wright. 1, p. 12. Between the Rio Grande and
the Pecos and Devil's river; May—July.

CELASTRACE.JE.

MoRTONIA SPABRELLA, Gray, Pl. Wright. 2, p. 28. Mountains of El Paso and of Chihuahua,
opposite San Elceario, May—June; Parry, Bigelow.

MoRTONIA SEMPERVIRENS, Gray, Pl. Wright. 1, p. 35, t. 4. On the Pecos, western Texas.

MoRTONIA 686611, Gray, l. c. (adnot.) Calcareous hills, Ringgold Barracks, May ; Schott.

GLOSSOPETALON SPINESCENS, Gray, Pl. Wright. 2, p. 29, t. 12. B. Mountains and rocky places,
El Paso, March ; Bigelow.

MAYTENUS PHYLLANTHOIDES, Benth. Dot. Sulph. p. 54. Lower Rio Grande (in fruit) ; Schott.
A native also of the bay of Magdalena, California, and of Key West, Florida. Cotyledons
thick, and albumen very thin in this species. ;

PACHYSTIMA MYRSINITES, Ziaf. ; n, Pi. Fendl. p. 29. Sides of Den More, New Mexico, June;
Bigelow.

ScHAFFERIA CUNEIFOLIA, Gray, Pl. Wright. 1, p. 35. Western Texas, along the lower Rio
Grande, March (male flowers) ; Schott.

ACERACELE.

ACER MACROPHYLLUM, Pursh, Fl. 1, p.967 ; Hook. Fl. Bor.-Am. 1, p. 112, t. 38. Mountain
ravines, Santa Barbara, California; Parry.

NEauNDo AcEROIDES, Moench; Torr. & Gray, Fl. 1, p. 260. N. Californicum, Torr. & Gray,
l. c. Nutt. Sylv. 2, p. 90, t. 72. In various parts of California; Parry.

SAPINDACEJE.

. BAPINDUS MARGINATUS, Willd; Gray, Gen. IU. 2, t. 150. Along the Rio Grande and its
tributaries ; also near the Copper Mines, New Mexico, and in Sonora.

CARDIOSPERMUM HALICACABUM, Linn. Western Texas, and on the lower Rio Grande; Schott. |

SERJANIA INCISA, (n. sp.) foliis impari-bipinnatis ; pinnis bijugis trifoliatis ; foliolis ovato-
rhomboideis serrato-incisis utrinque pubescentibus, petiolis subalatis ; aa alis semi-
oblongis. Mountains of Santa Rosa, Cohahuila ; Bigelow. A وس‎ feet long. Leaflets
1—1} inch long, acute at each end, with 2—3 coarse teeth on each side; the petiole more or
less distinctly winged. Peduncles about two-thirds the length of the leaves. Panicle an inch

or more long, racemiform, usually with 2 or 3 tendrils at the base. Sepals oblong. Pet " $n

strongly appendiculate on the inside. - Frais 14 inch 7
when old; seed-bearing portion reticu

48 UNITED STATES AND MEXICAN BOUNDARY.

the base. We think this can hardly be 8. racemosa, nor can we refer it to any described species
of Serjania. The leaves in all our specimens are pinnate, and the pinne trifoliate.

URVILLEA Mexicana, Gray, l. c. (adnot.) Rich soil, among rocks. Monterey, Neuvo Leon,
Thurber. It was found some years before, in the same place, by Dr. Gregg, Dr. Edwards, and
Major Eaton. Taumilapas; Berlandier, No. 2269.

DODONAEA SCHEIDIANA, Schlecht. in Linnea, 18, p. 49. In various parts of Sonora ; Thurber,
Schott.

۸180018 CALIFORNICA, Nutt. in Torr. & Gray, Fl. 1, p. 251, & Sylva, 2, p. 69, t. 14. NIMES
Bot. Williamson in Pacif. R Road Expl. 6, p. 21, fig. 1. Near Monterey and San Luis Obispo,
California, May; Parry. i

UNGNADIA SPECIOSA, Endl. Atakt. t. 36; Gray, Gen. IU. 2, t. 118 £ 179. Dry ravines, Organ
mountains of New Mexico, March—April; Bigelow. Hueco mountains, Texas; Thurber.

MALPIGHIACE.E.

` GALPHIMIA LINIFOLIA, Gray, Gen. Ill. 2, p. 196, t. 113. Limestone hills and plains on the
Rio Grande and its tributaries, western Texas. |

MarPIGHIA GLABRA, Linn.; DC. Prodr. 1, p. 578. On the lower Rio Grande, September—
October (flowers and fruit); Schott. Dr. Edwards found it near Monterey, Neuvo Leon. It is
a shrub 1-—4 feet high, growing in densely bushy places.

JANUSIA GRACILIS, Gray, Pl. Wright. 1, p. 38; & 2, p. 30; Torr. Bot. Parkes, in Pacific R,
Road Expl. "۲ 1 9, 2. 1l. From the Limpio mountains to El Paso, and west to Chihuahua and
Sonora.

ÅSPICARPA LONGIPES, Gray, Pl. Wiigi. 1, p. 38 2 2, p. 30. Rocky hills near the Limpia
river, July—September ; Bigelow. Sierra del Pajarito, Santa Cruz, Sonora; Thurber, Schott.

AsPICARPA HYSSOPIFOLIA, Gray, Pl. Lindh. 2, p. 167; & Pl. Wright. 1, p. 36. Limestone
hills along the lower Rio Grande, October ; Schott.

HriRzA SEPTENTRIONALIS, Ad. Juss. مس‎ Malpigh. p. 309. Var. foliis minoribusse pissime
oblongo-lanceolatis, Gray, Pl. T'hurb. p. 303 (adnot.) Between Reyon and Ures, Sonora;
Thurber. Dr. Edwards collected it near Monterey, Neuvo Leon. It is a shrub 6 一 8 feet high.

"POLYGALACEZ.

OLYGALA PUBERULA, Gray, Pl. Wright. 2, p. 30. Hills between Van Horn's Wells and
; Tun on pfe mountains of Leona; موجه‎ dead. also at the Copper Mines, and on

PoLYGALA TH, Gray, pl. Lindh. 2, p. 150; & Pl. Wright. 1, p. 39: Hills and plains,
.. western Texas; New Mexico and Sonora ; June—September.
i e | .. PorxaALA OVATIFOLIA, Gray, Pl. Wright. 1, p. 39. Limestone rocks on the Rio Grande from
ED Fass up to the San Pedro and Pecos ; Schott, Bigelow.
ALA ALBA, Nutt. Gen. 2, p. 87; Pl. Wright. l.c. Gravelly hills on the Rio
from New Mexico to the lower river. Valley of the Santa Cruz river, Sonora ; Capt. E.

PA s H. B. K. Nov. Gen. 5, p. 399 ; var. MULIICAULIS, Gray, 1 c. Hills and
0; دد‎ cuc سو‎ Texas ; ` Bigelow, Parry. |

BOTANY. 49

POLYGALA HEMIPTEROCARPA, Gray, Pl. Wright. 2, p. 31. Rocky hills near Camp Bache, Texas, -
July ; Bigelow. Sierra del Pajarito ; Schott.

PoLYGALA MAURADENIA, Gray, l. c. 1, p. 39. Hills on the Rio Grande, from El Paso to Eagle
Pass ; June.

PoryaALA NUTKANA, Moc. & Sessé; DC. Prodr. 1, p. 331. P. cucullata, Benth. Pl. Hartw. p.
229. P. Californica, Nutt. in Torr. & Gray, Fl. 1, p. 671. (Tas. XIL.) Near Monterey, May ;
Parry. We have seen specimens of this plant with radical flowers, so that no doubt ۵
P. Californica is the same as P. Nutkana.

MoxxiNA WRIGHTII, Gray, l. c. 2, p. 31. Copper Mines, New Mexico, Aug. ; Bigelow.

KRAMERIACEJE.

KRAMERIA LANCEOLATA, Torr. im Ann. Lyc. N. York, 2, p. 168 ; Gray, Gen. IN. 2, t. 185.
Hill-sides along the Rio Grande, from El Paso to Laredo, April—July. Cañon of Guadaloupe,
Sonora; Capt. E. K. Smith.

KRAMERIA PARVIFOLIA, Benth. Bot. Sulph. p. 6, t. 1; Gray, Pl. Wright. 1, p. 42. Ravines and
hills, western Texas, particularly along the upper Rio Grande and at Guadaloupe cañon,
Sonora ; Capt. E. K. Smith ; also on the border of the California desert, near San Felipe, June;
Parry. Var. RAMosissima, Gray, l. c. Devil's river, Leon Springs, and Presidio del Norte,

KRAMERIA CANESCENS, Gray, Pl. Wright. l.c. (Tas. XIII.) Hills on the Rio Grande, from
El Paso to the mouth of the Cibolo, June—July ; Bigelow.

LEGUMINOSAE.

Viera PULCHELLA, H. B. K.; Var. foliolis majoribus, etc., Gray, Pl. Wright. 2, p. 32. Hills
at the Copper Mines, New Mexico, August ; Bigelow.

VICIA EXIGUA, Nutt. in Torr. & Gray, Fl. 1, p. 212. Hill-sides, southern New Mexico, Chi-
huahua, and southern California, April—June.

LATHYRUS LINEARIS, Nutt. l. c. On the Rio Mimbres and at the Copper Mines, New Mexico,
June, (in flower and fruit ;) Bigelow.

LATHYRUS vestitus, Nutt. in Torr. & Gray, Fl. 1, p. 276. Napa county, California, March ;
ال‎

LATHYRUS PALUSTRIS, Linn. var. ۸ foliis elongatis angustis, etc. ; Gray, Pl. Wright. 2, p. 32.
Western Texas, and at the Copper Mines; also in Cohahuila and Sonora.

LATHYRUS POLYMORPHUS, Nutt. Gen. 2, p. 97. In wet places, Sonora ; Thurber.

LaTHYRus vENOSUS, Muhl. in Willd, Sp. 3, p. 1092? In shady places near San Diego, Cali-
fornia, May; Thurber. A form with emarginate leaflets.

LATHYRUS MARITIMUS, Bigel. Fl. Bost. ed. 2, p. 268; Torr. & Gray, Fl. 1, p. 273. Near San
Diego, March; Parry. Peduncles, petioles, and calyx pubescent. Leaflets 8—12, mostly
alternate, varying from ovate to elliptical-oblong, glabrous, scarcely half as large as in the
eastern plant. Stipules broadly cordate-hastate, nearly as long as the leaflets. Peduncles 6 一
10-flowered.

PHASEOLUS RETUSUS, Benth. Pl. Hartw. p. 11; Gray, Pl. Lindh. 2, p. 170. Valley of the
Limpio, and near the Copper Mines, July—August; Parry, Bigelow. _

PHASEOLUS Werieuti, Gray, Pl. Wright. 1, p. 43. Mountains and rocky places along the |
middle Rio Grande, and at the Copper Mines, July—August. Dr. Bigelow found at Eagle
Pass what seems to be a variety of this species, in which the leaflets of the lower leaves are -
entire. ae

Tk

رادا په رن CT EROR DUST TEES NE‏ ل E E LE‏ ا

hai.

tur dar ME Mets

w

50 UNITED STATES AND MEXICAN BOUNDARY.

PHASEOLUS ANGUSTISSIMUS, Gray, Pl. Wright. 2, p. 33. Dry ravines on the Cibolo, a tributary
of the Rio Grande, Cohahuila, July ; Bigelow.

PHASEOLUS, MACROPOIDES, Gray, l. e. Hills at the Copper Mines, August; Bigelow.

PHASEOLUS ATROPURPUREUS (n. sp.:) caulibus volubilibus retrorsim pubescentibus ; stipulis minutis
subulatis; foliolis lanceolatis basi dilatatis utrinque pubescentibus lateralibus ad basim unilobatis,
terminati trilobo ; pedunculis folio multoties longioribus paucifloris ; calycibus subsessilibus,
laciniis inferioribus: lanceolato-subulatis, superioribus triangulari-lanceolatis, alis corolle late
ovatis (atropurpureis) vexillo duplo longioribus; leguminibus deflexis lineari-falcatis 7 一 9-
spermis. Rocks on the Rio Cibolo of the Rio Grande, and ravines, Bufitillo ; Bigelow. Presidio
del Norte, July—August; Parry. Leaflets 14—24 inches long, tapering to a long narrow
point ; the lateral ones with large acute lobe on the outer side at the base; the terminal leaf
more or less dilated at the base, and usually 3-lobed, but sometimes (especially in the lower
leaves) only obscurely lobed. Peduncle 8—12 inches long, and still more elongated in fruit.
Flowers 6—10, at first approximated toward the extremity of the peduncle, but afterwards
distant. Pods about 3 inches long and 2 lines wide. Seeds oblong, compressed, about 24 lines

‘long, and 14 wide; smooth, greyish, speckled with dark purple. This seems to be quite distinct
from any Phaseolus hitherto described. Mr. Schott found on the sea beach at Brazos Santiago,
Texas, a plant allied to this, but much more downy, and the leaflets half as large, ovate
obtuse, with very short lobes. The specimens are not sufficiently complete for a more minute
comparison.

Viena VILLOSA, Savi. ? DC. Prodr.l. 2, p. 40. Thickets on the Rio Grande, between Ringgold
Barracks and Laredo ; Schott. If, as is probable, this and V. glabra are not specifically distinct,
it ought to be called V. luteola, the genus Vigna having been founded on Dolichos luteolus,
Jacq.

ERYTHRINA CORALLOIDES, Moc. d: Sesse in DC. Prodr. 2, p. 413? Gray, Pl. Thurb. p. 301.
Bachuachi and Gaudaloupe cation, June (in flower) and August (in fruit); Thurber. Summit
of mountains north of Imores ; Capt. E. K. Smith ; and Sierra del Pajarito, in the same State ;
Schott. I have followed Dr. Gray in naming this plant, but it does not well accord with the
description of De Candolle. The leaves are broader than long, and the petioles in our specimens
are more or less prickly. Indeed, it scarcely differs from E. herbacea, of the southern States,
for that species becomes shrubby in Florida, and the stem, as well as the petioles, prickly.

RHYNOHOSIA Texana, Torr. & Gray, Fl. 1, p. 687. Western Texas; also near the Copper
Mines and Sonora, May—June.

"RuvwcHostA TEXANA, var. ANGUSTIFOLIA, Gray, Pl. Wright. 1, p. 44. Mountain ravines»
between Van Horn's Wells and Muerte, July ; Parry, Bigelow.
RHYNCHOSIA MENISPERMOIDEA, DO. Prodr. 2, p. 384. Sandy places, low land, Texas, June;
Thurber, Bigelow. ۱
. Centros#MA VIRGINIANA, Benth. ; Torr. & Gray, Fl. 1, p. 290. Var. foliolis minoribus angus”
oribusque. Brazos Santiago, May ; Schott.
GALACTIA MARGINALIS, Benth.; Torr. & Gray, Fl. 1, p. 288. Western Texas, near the Rio
. Grande; Parry.

GALACTIA mEPHRODES, H. D. Kth.; Gray, Pl. Wright. 2, p. 34. Ravines near Rock creek?

Bigelow. Janos, Chihuahua : ۰

GALACTIA CANESCENS, Benth. ; Torr. & Gray, Fl. 1, p. 288. Sandy places — Ringgold

Barracks and Laredo, Texas ;

BOTANY. 51

GHALACTIA WRIGHTIT, Gray, Pl. Wright. 1, p. 44. Sierra del Pajarito, July ; Schott.

COLOGANIA PULCHELLA, H. B. Kth.; Gray, l.c. p. 45, & 2, p. 34. Ravines near the Copper
Mines; rocky hills near Muerte, and mountains of Muerte, July—August ; Bigelow.

CoroGANIA LoNGIFOLIA, Gray, l. c. 2, p. 35. Ravines near Camp Bache, western Texas, and
at the Copper Mines; Bigelow. A large leaved form.

DAUBENTONIA LONGIFOLIA, DO. Mem. Leg. & Prodr. 2, p. 267; Torr. & Gray, Fl. p. 283.
Banks of the Rio Grande from Laredo down to the coast ; Schott. Rio Coleto, Texas; Thurber.
A large shrub, with showy racemes of bright yellow flowers. The seeds are used as a substitute
for coffee.

DavnENTONIA? THURBERI, Gray, Pl. Thurb. p. 313. Hill-sides, Mabibi, Sonora, June;
Thurber.

Guorrmrum FLoRIDANUM, DO. Prodr. 2, p. 266; Torr. & Gray, Fl. 1, p. 294. Southwestern
Texas, September ; Thurber.

SEsBANIA MAcRocaRPA, Muhl.; DO. l. c.; Torr. & Gray, l.c. Shore of the lower Gila, near
its confluence with the Colorado; Schott. Cocospera, Sonora; Thurber.

PETERIA SCOPARIA, Gray, Pl. Wright. 1, p. 50. Gravelly hills near Rock creek, and between
Van Horn’s Mills and Eagle Springs, between the Pecos and the Rio Grande, July, Bigelow.

PICKERINGIA MONTANA, Nutt. in Torr. and Gray, Fl. 1, p. 389.—(Tab. XIV.) Hills near
Monterey, May; Parry. The fruit of this interesting shrub is still a desideratum.

TEPHROSIA LINDHEIMERI, Gray, Pl. Lindheim. 2, p. 172. Hills on the Lower Rio dt
April; Schott.

TEPHROSIA LEUCANTHA, H. B. K.? Gray, Pl. Wright. 2, p. 36. Santa Cruz and Mabibi, 区
September (in fruit); Thurber. Sierra Verde, in the same State ; Schott.

TEPHROSIA TENELLA, Gray, l. c. Santa Cruz, September; Thurber, and Sierra de la Union ;
Sonora, July; Schott.

INDIGOFERA LINDHEIMERIANA, Scheele in Linnea, 21, p. 464; Gray, Pl. Wright. 1, p. 45.
Central and western Texas, August—September.

INDIGOFERA LEPTOSEPALA, Nutt. in Torr. & Gray, Fl. 1, p. 298. Valley of the Pecos, &c.;
September.

PsoRALEA FLORIBUNDA, Nutt. l. c. p. 30. Gravelly hills, Rock creek, ud at the Copper Mines; ;
also in Sonora, south of the boundary line.

| PSORALEA ESCULENTA, Pursh, Fl. 2, p. 475, t. 22. Fields near the Presidio del Norte, August;
Parry. Luxuriant specimens, with the leaves all crisped, undulate on the margin.

PSORALEA ORBICULARIS, Lindl. Bot. Reg. t. 1971; Torr. & Gray, Fl. 1, p. 304. Near San Luis
Obispo and other parts of California, April; Parry. Peduncles often more than a foot long,
and the petioles of nearly the same length. The spike is at first short and capitate, but i in full.
flower is sometimes 6 inches long.

PsonALEA MACROSTACHYA, DC. Prodr. 2, p. 220; Torr. & Gray, Fl. 1, p. 689. Banks of rivers,
San Luis Rey, California, October; Parry.

PSORALEA PSYCODES, Dougl. in Hook. Fl. Bor.—Am. 1, p. 136. In moist places near Monterey,
California, May; Parry. Our specimens accord exactly with Douglas’ Californian plant, and -
therefore belong to the var. 8. Hook. l. c.

ExsENHARDTIA AMORPHOIDES, H. D. K. Nov. Gen. & Sp. 6, p. 489, t. 592. Common vin weste T ert 3
Texas, along the Rio Grande, also in Cohahuila, Chihuahua, and Sonora, May—Se ber. —

)
|
۱
$
١

52 . UNITED STATES AND MEXICAN BOUNDARY.

DALEA Formosa, Torr. in Ann. Lyc. N. Y. 2, p. 178; & in Emory Rep. t. 1. Gravelly and
rocky hills and prairies along the Rio Grande, from Frontera down to Eagle Pass, also in Coha-
huila, April—July. A highly ornamental little shrub, bearing a profusion of bright rose-
colored flowers.

DALEA rogoNATHERA, Gray, Pl. Wright. 1, p. 48. Hills along the Rio Grande and its tribu-
taries in western Texas and the Mexican States, April—A ugust.

a.‏ ت

DALEA LASIATHERA, Gray, l.e. Plains near Howard's Springs, September; Bigelow. Cen-
tral Texas; Thurber.

DALEA BRACHY: xs, Gray, l. c. 2, p. 39. Plains, Leon Springs, September; Bigelow.
Sonora; T'hurber. !

DALEA PoLYGoNOIDES, Gray, l.c. Hills near the Copper Mines, New Mexico, October; Bigelow.
` DALEA FILIFORMIS, Gray, 1. c. With the last; Bigelow. Also between Janos and Santa Maria
river, Sonora, September ; Schott.

了 ALEA LÆVIGATA, Gray, l.c. With the last; Bigelow, Thurber. Dry rocky places, valley
of the Santa Cruz, Sonora; Captain E. K. Smith.

DALEA ALBIFLORA, Gray, l. c. p. 38. Hills near the Copper Mines, August—October; Bigelow.
San Pedro, Sonora; Thurber.

DALEA ALOPECUROIDES, Willd.; Gray, Pl. Fendl. p. 31. Santa Cruz, Sonora, May—September ;
Thurber, Captain E. K. Smith.

Darra WisumzENI, Gray, Pl. Fendl. p. 32, & Pl. Wright. 2, p. 38. Santa i Sonora,
September ; Thurber. i

DALEA AUREA, Nutt. Gen. 2, p. 101. Dry rocky places in the valley of the Limpio, July;
Bigelow. Arroyo los Moros, on the Rio Grande, August; Schott.

` DALEA wana, Torr. in Pl. Fendl. p. 31; var. elatior, &c. Gray, Pl. Wright. 1, p. 46. Hills
along the Rio Grande and its tributaries from New Mexico to Laredo, June—August.

DALEA WRIGHTIH Gray, Pl. Wright. 1, p. 49. Hill sides Frontera, and between the San Pedro
and Pecos, May— October. Cañon of the Guadaloupe river, Sonora, April; Capt. E. K. Smith.

Darra Jamesi, Torr. & Gray, Fl. 1, p. 308. Gravelly hills, Rock Creek, and plains along
the Limpio, May-—July; Bigelow. Mule Springs, New Mexico; Thurber.

DALEA LAOHNOSTACHYS, Gray, Pl. Wright. 1, p. 46. With the last; Parry, Bigelow.

DALEA morts, Benth. Pl. Hartw. p. 306. Hills and rocky places along the Rio Grande, Texas,
westward to the Colorado desert, California ; February—July.

DALEA LANATA, Spreng. Syst. 3, p. 327. Sandy ravines and hill sides on the Rio Grande,
'exas ; also in Cohahuila and Chihuahua, September.

了 DALEA ARGYRAEA, Gray, Pl. dicam 1, p. 47. Rocky hills between the Nueces ae the Rio
Grande, September. ;

Dana Grecen, Gray, Pl. Thr, p. 315. Agua Prieta, March; Parry. Cerro Gordo, in
rango; Thurber. Sierra del Pajarito, Sonora, July; Schott. Leaflets sometimes only 3.
Flowers bright rose color.

DALEA Emory, Gray, l. c.; Torr. in Pacif.. R. Road Expl. 6, p. 360,¢.11. Valley of the
Gila, May— July; Schott, Thurber. E
DALEA SCOPARIA, a Pl. Fendl. p. 32, & Pl. Wright. 1, p. 41. Sandy hills near Elceario,

June; Bigelow. | سس‎ ie Bow, Chihuahua; Thurber.

eet

BOTANY. 53

Darga FRUTESCENS, Gray, Pl. Lindh. 2, p. 175. Hills and rocky places along the Rio Grande
and its tributaries, August—September.

DALEA sprnosa, Gray, Pl. Thurb. p. 315; Torr. Bot. Parke, in Pacif. R. Road Expl. 1, p. 9,
t. 3. On the lower Rio Gila; Thurber. Dry beds of rivers in the Californian desert; Schott.
The leaves of young shoots and seedlings are obovate-oblong, toothed and dotted with glands.

DALEA SoHoTTI (n. sp.): fruticosa ; ramis flexuosis glaberrimis, ramulis in spinas subpun-
gentes abuentibus; foliis simplicissimus sparsis anguste linearibus; pedunculis 2—3-floris ;
calycis dentibus late ovatis tubo glabro eglanduloso duplo brevioribus ; corolla violacea, Dilu-
vial banks of the Colorado, February; Schott. Branches zigzag, smooth, yellow. Leaves 8-0
lines long, scarcely a line widé, hoary-pubescent above, green, and marked with row of impressed
dots on each side underneath. Flowers produced at the extremity of short branches, usually two
together, on short pedicels; the bracts resembling the leaves, only smaller. Calyx without
glands, somewhat turbinate, smooth, the broad teeth pubescent on the margin. Corolla deep
violet. Pods not seen.

PETALOSTEMON EXILE, Gray, Pl. Wright. 2, p. 51. Hills and rocky places at the Copper Mines,
New Mexico, September ; Bigelow. Santa Cruz, Sonora; Thurber.

PETALOSTEMON CANDIDUM, Micha. Fl. 2, p. 49, t. 37, f. 1. Near the Copper Mines, and low
places between Van Horn's Wells and Muerte, July; Bigelow. Rio de Sta. Cruz and Prodrero,
Sonora, June; Schott. Our plant resembles Fendler's specimens named P. gracile by Dr.
Gray, but it is erect,

PETALOSTEMON EMARGINATUM, Torr. & Gray, Fl. 1, p. 311. Near Ringgold Barracks ; Schott.
We have never before received specimens of this plant since it was sent to us from Drummond's
Texan collection.

Ropinta Neo-Mexicana, Gray, Pl. Thurb. p. 315. Along the Mimbres, New Mexico; Thurber,
and on Ben Moore, near the Copper Mines; Bigelow.

AMORPHA LAEVIGATA, Nutt. var. PUBESCENS, Gray, Pl. Wright. 1, p. 49. Hills at the Copper
Mines, and on the Rio Grande below the mouth of Escondido n March ; Bigelow, Schott.
Hardly distinct from the next.

AMORPHA FRUTICOSA, Linn.; Torr. & Gray, Fl. 1, p. 305. A. Californica, Nutt. l. c. Moun-
tains east of San Diego, California; Parry. Mabibi, Sonora, June; Thurber. I can find no
reliable characters for distinguishing the two species here united. Mr. Nuttall’s plant was "
described from specimens in which the flowers were scarcely unfolded, and the fruit of which
was not collected,

GLYCYRRHIZA LEPIDOTA, Nutt. Gen. 2, p. 106; Bot. Mag. t. 2150; Gray, Pl. Wright. 1, p. 50.
G. glutinosa, Nutt. in Torr. & Gray, Fl. 1, p. 298. "Valley of the Rio Grande below Sar
Elceario, June; Thurber. Ojo de Vaca, Chihuahua; Thurber. San Felipe, California; Parry.

Torr. & Gray, Fl. 1,p. 321. Banks of the acequia, near El Paso,‏ رود xiva,‏ ونم
May; Bigelow. This is no doubt an introduced plant. It seems to be naturalized in man‏
parts of the Mexican States. :‏

MEDICAGO DENTICULATA, Willd.; Torr. & Gray, l. c. Naturalized in western Texas, New
Mexico and the Mexican States west of the Rio Grande; also throughout California, wherever
the Spanish missions were a

54 UNITED STATES AND MEXICAN BOUNDARY.

MELILOTUS PARVIFLORA, Desf.; Torr. & Gray, l. c. M. occidentalis, Nutt. l. c. Western
Texas, Chihuahua, Sonora and California, April—May. Introduced from Europe.

TRIFOLIUM FIMBRIATUM, Lindl. Bot. Reg. t. 1070; Torr. & Gray, Fl. 1, p. 317. Near San
Diego, California, May; Parry. Napa and San Isabel in the same State; Thurber. All our
specimens of this plant are clothed with a minute glandular pubescence. The leaflets are
lanceolate or oblong-lanceolate, and conspicuously fringed with narrow spinulose serratures.
Teeth of the calyx always entire, and broadly lanceolate at the base. Legumes 2-seeded. The
Indians of California collect the seeds for food.

TRIFOLIUM HETERODON, f. Torr. & Gray, Fl. 1, p. 318. Monterey, California, May; Parry.
Differs from the preceding in being glabrous, with oblong or obovate leaflets; the stipules much
less cut; the calyx-teeth subulate from a narrow base; the two upper ones 2—3-cleft, and in
the legumes 4—5-seeded.

TRIFOLIUM SPINULOSUM, D. Torr. & Gray, l. c. Near Monterey, California, May; Parry.
Near the last, but distinguished by the entire teeth of the calyx, more laciniate stipules and 2-
seeded legumes. From T. fimbriatum it differs in being glabrous, and in the much longer and
narrower calyx-teeth.

TRIFOLIUM Macrat, Hook. & Arn. Bot. Misc. 3, p. 119. T. albo-purpureum, Torr. & Gray, Fl.
1, p. 319. Santa Barbara, California, April; Parry. _

TRIFOLIUM TRIDENTATUM, Lindl. Bot. Heg. sub t. 1070. T. involucratum, Torr. & Gray, l. c.
non Willd. Santa Barbara, California ; Parry.

TRIFOLIUM INVOLUCRATUM, Willd. Sp. 3, p. 1372; Gray, Pl. Wright. 2, p. 41. Hills at the
Copper Mines and along the Mimbres, New Mexico, June; Bigelow. Mabibi, Sonora; Thurber,

TRIFOLIUM BEJARIENSE, Moricand, Pl. Nouv. Amer. p. 2, t. 2. Western Texas, April; Wright.

TRIFOLIUM FucatuM, Lindl. Bot. Heg. t. 1883 ; Torr. & Gray, l. c. T. physopetalum, Fisch.
& Mey. Ind. Sem. St. Petersb. 1837, p. 18. Santa Barbara, and on the beach San Juan
Capristano, California, March—May; Parry. San Isabel; Thurber. As tout species, easily
distinguished by its very large head, and broadly lanceolate entire segments of the involucre.

TRIFOLIUM AMPLECTENS, Torr. & Gray, l. c. 1, p. 319 ; Hook. & Arn. Bot. Beech. p. 330, t. 18.
San Fernando and San Luis Obispo, California; Parry.

TRIFOLIUM VARIEGATUM, Nutt. in Torr. & Gray, Fl. 1, p. 317, Sonora, June; Thurber.

TRIFOLIUM MICROCEPHALUM, Pursh, Fl. 2, p. 478; Torr. & Gray, 1. c. San Diego, California,
May ; Thurber.

Hosackta oBLONGIFOLIA, Benth. Pl. Hartw. p. 305. Mountains east of San Diego, California,
June; Parry. Resembles H. bicolor, but differs in being pubescent, and in the narrowly
Rog. acute leaflets, as well as in other characters. The legume is straight, about an inch
and a quarter long, and scarcely two lines wide. I have never seen H. bicolor with bracts, but
in this species e is always a unifoliate bract to each head of flowers.

Hosackia GRACILIS, Benth. in Linn. Trans. 17, p. 365; Torr. & Gray, Fl. 1, p. 323. (Tas.
XV.) Monterey, California, May. A rare species which we have received only from the
vicinity of Monterey. It has much the appearance of a depauperate state of H. bicolor. The
petiolate trifoliate bract is always present.

Hosackta srRIGOSA, Nutt. in Torr. & Gray, l. c. H. rubella, Nutt. l. c. Near Santa Barbara,
California, March; Parry. Annual. Stem branching from the base; the branches 3—4

BOTANY. 55

inches long. Flowers nearly one-third of an inch long. H. nudiflora, Nutt. seems hardly
distinct from this species. In H. rubella we find on the same specimens some peduncles with
unifoliolate bracts, and others in which the bracts are reduced to minute gland-like scales.

۲108۸0۲۲۸ PUBERULA, Benth. Pl. Hartw. p. 305; Gray, Pl. Wright. 1, p. 50; Torr. Bot.
Parke in Pacific R. Road Expl. 7, p. 10, t. 4. Western Texas, New Mexico, Chihuahua,
Sonora and California.

H. PUBERULA, var. NANA, etc., Gray, l. c. Organ mountains, New Mexico, Bigelow. Ojo de
Vaca, Chihuahua : Zhurber.—H. Wrightii, Gray seems to pass into this species. A variety
with obovate leaflets was found by Schott, in the valley of the Gila, and by Captain E. K.
Smith, in Sonora.

Hosackta PURSHIANA, Benth.; Torr. & Gray,l.c. Between Tucson and the Rio Gila, Sonora,

. March—sBeptember ; Parry, Thurber. Monterey, California; Parry. Varies with the upper,
and sometimes all the leaves unifoliolate, when it is the H. unifoliolata, Hook. Fl. 1207“ .-
1, p. 135. This synonym was inadvertently overlooked in the Flora of North America, as it
was also by Hooker in noticing the same form in Pl. Geyer.—(See Lond. Jour. Bot. 7. p. 210.)

Hosackra MARITIMA, Nutt. in Torr. & Gray, Fl. 1, p. 326. San Isabel, California, May ;
Thurber.

HOSACKIA SUBPINNATA, Torr. & Gray, l. c. ; Benth. Pl. Hartw. p. 306. San Isabel, California,
May ; T'hurber. H. Wrangeliana should probably be united to this species.

HosACKIA BRACHYCARPA, Benth, l. c. Sonora ; Thurber, The mature pod is nearly twice as long
as the calyx, but is always much shorter than in H. subpinnata.

HosackrA ARGOPHYLLA, Gray, Pl. Thurb. p. 316. On rocks, San Isabel, California, May;
Thurber.

HosackrA TOMENTOSA, Hook. & Arn. Bot. Beechey, p. 137; Torr. & Gray, l.c. Monterey,
California; Parry.

HosackrA cvzmorpEs, Benth. l. c.; Torr. & Gray, l.c. B. Syrmatium glabrum, Vogel?
Monterey, California, May ; Parry. Leaflets mostly 3. Flowers reddish.

HOSACKIA scoparia, Nutt. in Torr. & Gray, l. c. Ravines near San Diego, and in other parts
of California, May ; Parry, Thurber.

1108۸07۸ JUNCEA, Benth. 1. c. In the Colorado desert ; Schott. Too near the last species.

AsrRAGALUs Coprensis, Gray, Pl. Wright. 2, p. 43, (adnot.) Copper Mines, New Mexico,
April, and Ben Moore, Cohahuila, June (fruit) ; Bigelow.

ASIRAGALUS BIGELOVII, Gray, l. c. p. 42. Between the Rio San Pedro and the Rio Grande,
western Texas; also at the base of the Organ mountains and near the Copper Mines, New
Mexico; west to the Santa Cruz valley, Sonora; March—May.

DIDYMOCARPUS, Hook. & Arn. Bot. Beechey, p. 334, t. 81; Torr. & Gray, l. c.‏ رید
High beach near San Juan Capristano, and at Santa Barbara, California, March; Parry. The‏
leaflets in most of our specimens are narrowly cuneate-oblong, and notched at the summit.‏

AsrRAGALUS NurTALLIANUS, DC.; Torr. & Gray, Fl. 1, p. 334; Gray, l. c. p. 52. Valleys
of the Rio Grande and its tributaries in western Texas, New Mexico, Cohahuila and Chihuahua ;
also in Sonora; March—June. Variable in size, foliage, and other characters,

ASTRAGALUS HUMISTRATUS, Gray, Pl. Wright. 2, p. 43. Hills at the Copper pcs June
July ; Bigelow, Thurber. Leaflets more obtuse than in Wright’s specimens.

D a ل‎ 0 E

Meas‏ نوا

56 UNITED STATES AND MEXICAN BOUNDARY.

ASTRAGALUS GLAREOSUS, Dougl. im Hook. Fi. Bor.—Am.1, p. 152? Near the Copper Mines,
May 一 June ; Bigelow. Guadaloupe Pass, Sonora.

AsTRAGALUS HARTWEGI, Benth. Pl. Hartw. p. 10. El Podrero, near the 110° of longitude;
Sonora ; Schott.

ASIRAGALUS CYANEUS, Gray, Pi. Fendl. p. 34. Doña Ana, New Mexico, April; Thurber.

ASTRAGAL'S VACARUM, Gray, Pl. Wright. 2, p. 43. Ojo de Vaca, Chihuahua ; Thurber.

ASTRAGALUS (PHACA) TEPHRODES, Gray, Pl. Wright. 2, p. 45. Gravelly plains near the base
of the Organ mountains and on t e Mimbres, New Mexico, April—May ; Bigelow, Thurber.

ASTRAGALUS (PHACA) FENDLERI, Gray, l. c. p. 44. Hills at the Copper Mines, October, (in
fruit); Bigelow.

Astragalus (PHACA) Sonora, Gray l. c. Tubac, Sonora, March ; Parry.

ASTRAGALUS (PHACA) THURBERI, Gray, Pl. T'hurb. p. 312. Fronteras, Sonora, June; Thurber

ASTRAGALUS (PHACA) LEUCOPSIS, Torr. & Gray, Fl. 1, p. 694. Phaca canescens, Nutt. in Torr.
& Gray, l. c. p. 344, non Hook. ۵ Arn. (Tas. XVI.) San Diego, California; Parry, Schott.
The pods are about an inch and a quarter long, excluding the stipe, which is 4 lines long.

ASTRAGALUS (PHACA) CROTALARLE, Benth. Pl. Hartw. p. 307. (Tas. XVII.) Mountains east
of San Diego, California, June, (with flowers and ripe pods;) Parry. A stout species,
commonly 4—6 feet high.

AsTRAGALUS (PHACA) TRIFLORUS, Gray, Pl. Wright. 2, p. 45. Phaca triflora, DC. Sandy plains
and mountains on the upper Rio Grande, in New Mexico and western Texas ; also in Cohahuila ;
April.

Oxytropis LAMBERTI, Pursh, var. Gray, Pl. Wright. 1, p. 53. Hills near the Copper Mines,
and Ojo Caliente; Bigzlow.

CHÆTOCALYX 171181328211, Gray, Pl. Wright. و1‎ p. 51, & 2, p. 45. (Tas. XVIII, fig. 5—7.)
Mount Carmel, and mountains of Santa Rosa, Cohahuila, October—November, (in fruit ;) Parry,
Bigelow.

CHÆTOCALYX ScHOTTI (n. sp.:) prostratus fere glaber; foliolis 5 ovatis acutis valde mucronatis ۰

concoloribus ; dentibus calycis lineari-subulatis nudis tubo sub duplo-longioribus ; carina ale
subeequantibus ; staminibus superne squaliter diadelphis. (Tas. XVIII.) Sierra Verde, Aroyo
de los Samotas, Sonora, August; Schott. Stem branching from a somewhat woody base,
slender, 2—3 feet long, twining towards the extremity. Leaflets 6 一 8 lines long, thin, those
of the lowest leaves obtuse, the others acute and pointed with a conspicuous mucro. Flowers
about six in axillary fascicles or short racemes. Pedicels rather shorter than the flowers.
Calyx broadly campanulate, entirely destitute of glands. Corolla yellow. Vexillum ovate.
oblong, emarginate, slightly pubescent. Wings and keel-petals oblong, acute. Stamens mona-
delphous below, diadelphous above, five on each side of the pistil. Ovary, mostly three-ovuled.
Mature pod not known, but the young ones are 2—3-jointed ; the terminal joint foliaceous and
dilated. Differs from C. Wislizeni in the narrow acute leaves, and the long teeth of the calyx.

ZORNIA TETRAPHYLLA, Micha. Fl. 2, p. 16; Torr. & Gray, Fl. 1, p. 354. Laredo and Ring-
gold Barracks, June; Schott.

DRESMODIUM GRAHAMI, Gray, Pl. Wright. 2, p. 48. Rocky places, on mountains of the Limpio
river, and hills at the Copper Mines, July—Anugust ; Bigelow.

DesMoDIUM ANNUUM, Gray, l. c. Santa Cruz, Sonora, September; Thurber.

BOTANY, 57

DrswoprtM EXIGUUM, Gray, l. c. With the last; Thurber.

DESMODIUM PANICULATUM, DC.; Torr. & Gray, Fl. 1, p. 363. Devil's River valley, western
Texas, (flowers and fruit), September ; Bigelow.

DEsMoDIUM CINERASCENS, Gray, l. c. p. 48. Sonora, in various places, June; Thurber.

Desmoptum WRIGHTI, Gray, Pl. Lindh. 2, p. VTT: i mountain ravines, on the Limpio ;
July, (fruit ;) Bigelow.

DESMODIUM Ngo-Mextcanum, Gray, Pl. Wright. 1, p. 53. Copper Mines, New Mexico, and
Santa Cruz, Sonora, September; Thurber. A variety with broader and more strongly reticu-
lated leaves than usual was found by Schott on the mountains of San Estaban, in Sonora,

LESPEDEZA VIOLACEA, Pers. var. SESSILIFLORA, Torr. & Gray, Fl. 1, p. 367. Central Texas ;
Schott.

CROTALARIA LUPULINA, DO. Prodr. 2, p. 133. Brazos Santiago, and Sonora, May ; Schott.
Chihuahua and Sonora; Thurber. Remarkable for its long spur-like projecting keel,

CROTALARIA SAGITTALIS, Linn.; Torr. & Gray, Fl. 1, p. 310. Sonora; Thurber.

Lupinus DENSIFLORUS, Benth. in Hort. Trans. (n. ser.) 1, p. 409; Torr. Pacif. Railroad Expl.
4, p. 81. L. Menziesii ; Agardh, Syn. Lup. p. 2. Monterey, California, May; Parry. San
Diego; Thurber. i i

LUPINUS HIRSUTISSIMUS, Benth. l. c. San Pasqual, California, May ; Thurber.

۳۲۲۲5 suscarnosus, Hook. Bot. Mag. t. 3467; Gray, Pl. Wright. 1, p. 54. L. Texensis;
Hook. Western Texas, May—June ; Thurber.
Lurus TRUNCATUS, Nutt. in Torr. d Gray, Fl. 1, .م‎ 313. San Diego, California, March—

May; Parry, Thurber.

LUPINUS SPARSIFLORUS, Benth. Pl. Hartw. p. 303. Near San Diego, California, May; Thurber.

Lupinus BICOLOR, Lindl. Dot. Reg. t. 1109; Torr. & sed l.c. San Pasqual, California,
May ; Thurber.

LUPINUS MrcRANTHUS, Dougl. in وس‎ Reg. t. 1251. Napa Mountains, California, March ;

tidie PUSILLUS, Pursh, Fl. 2, p. 468. Gravelly plains near the Organ Mountains, and hills
at the Copper Mines, New Mexico; also near Frontera, March—April. Tucson, Sonora, and
valley of the Santa Cruz, Sonora; Parry, Capt. E. K. Smith.

LUPINUS RIVULARIS, Lindl. Bot. Reg. t. 1595 ; Torr. ۵ Gray, Fl. 1, p. 376. San Diego, Cali-
fornia; Parry. |.

LUPINUS CYTISOIDES, Agardh, Lup. p. 18. San Isabel, California, May ; Thurber.

LUPINUS ArFINIS, Agardh, l. c. p. 20. Monterey, California ; Parry.

Lupinus Mextvanus, Lagasca ; Gray, Pl. Wright. 2. p. 49. On the mountain called Ben
Moore, near the Copper Mines, and at Crucis, New Mexico, April—May ; Bigelow.

1۲۳۲۵۲5 ogNATUS, Dougl. in Bot. Reg. t. 1216. Napa county, California, March; Thurber.

LUPINUS 100064851, Agardh, Lup. p. 34. South of San Louis Obispo, and near Monterey, Cali-
fornia; Parry.

LUPINUS ALBIFRONS, Benth, ; Agardh, l. c. p. 33. eet Parry ; iud near San Pasqual,

. California, May ; Thurber.

LUPINUS ARBUREUS, Sims in Bot. Mag. t 682; Agardh, l. c. p. 25; Benth. Pl. Hartw. p. 303.
alifornia, "we — A iuis shrub, with a stem which

Rk

Near San Diego and Monterey,

COR ی تت ت‎ NIE

58 ش‎ UNITED STATES AND MEXICAN BOUNDARY.

is sometimes 14 inch in diameter. It is a rare species in California, but is not uncommon in
the gardens of Europe, into which it is generally thought to have been introduced from South
. America; but we strongly suspect that the seeds were brought by Menzies to England from
California.

LUPINUS LITTORALIS， Dougl.; Agardh, l. c. p. 36. Monterey, California, May ; Parry.

SOPHORA SERICEA, Nutt. Gen. 1, p. 280; Gray, Pl. Wright. 1, p.54. Low moist places along
the Rio Grande and its tributaries, from New Mexico to San Elceario ; also in Coahuila; May—
June. i
SOPHORA SPECIOSA, Benth. ; Gray, Pl. Wright. 1, p. 54. Rocky valley of the Pecos; Septem-
ber, (in fruit ;) Bigelow. Fort Inge, Texas; Parry. Rinconada Pass, Neuvo Leon; Thurber.

SOPHORA TOMENTOSA, Linn.; Torr. & Gray, Fl. 1, p. 389. Brazos, Santiago, Texas; May;
Schott. | |

THERMOPSIS FABACEA, DC. Prodr. 2, p. 99. T. montana, Nutt. in Torr. & Gray, Fl. 1, p. 388.
Napa county, California, March; Thurber. Near the summit of the mountains east of San
Diego, California, June; Porry.

OINEYA TEsOTA, Gray, Pl. Thurb. p. 328; Torr. in Pacif. Railroad Expl. 7, p. 10, t. 5.
Ravines in the table lands on the lower Gila, often in company with Cercidium floridum ; Parry,
Thurber. Hills near Fort Yuma, California, January ; Schott.

-CERCIS OCCIDENTALIS, Torr. in Gray, Pl. Lindheim. 2, p. UTT. Valley of the Devil's river,
western Texas; Bigelow. Alsoin California. Mr. Blake informs me that the "—— lately
imported into the United States, are very fond of the leaves of this plant.

11077۸5 6:0 01۸ JAMESI, Torr. & Gray, Fl.1, p. 54; Gray, Pl. Wright. 2, p. 49. Sandy
places near Fort Fillmore, and other places, in New Mexico, April—September ; Bigelow.

HOFFMANSEGGIA CAUDATA, Gray, Pl. Lindh. 2, p. 119 ; Pl. Wright. 1, p. 54. On the lower
Rio Grande, April; Schott. In our specimens there are from 2—4 pinnae. The leaflets vary
from 4 to 7 pairs in the lateral pinnæ, and from 9—15 (rarely only sie in the terminal one. Some-
times they are scarcely a line in length. :

HoFFMANSEGGIA MICROPHYLLA (n. sp.:) puberula; ramis elongatis virgatis; pinnis unijugis
cum impari, lateralibus 10—12-foliolatis, terminali 14—-20-foliolata, foliolis minutis oblongis
eglandulosis; bracteis stipulisque caducis; racemo laxifloro elongato; legumine subfalcato 7
acuto glandulis subsessilibus asperato. Sandy desert of the Colorado, California ; Schott. Plant
apparently two feet or more in height. Stem and branches green, minutely velvetty, pubescent.
| Lateral pinne 3—4 lines long, the terminal one nearly twice as long. Leaflets scarcely a line
in length, pubescent. Calyx softly pubescent. Corolla yellow ; the claws of all, and the back

of the vexillum, somewhat glandular. Ovary thickly covered with pale disciform glands. Pods
sessile, about $ of an inch long and nearly 3 lines wide, nearly straight on the upper suture, -

4—6-seeded. D. 1
.. HorrMaNsEGGIA OXYCARPA, Gray, Pl. Wright. 1, p. 55. Vallies and hills of the San Pedro
river, Texas, May; Bigelow.

HOFFMANSEGGIA STRICTA, Benth. in Gray, Pl. Wright. 1, p. 56. Sterile soils along the Rio -

Grande, from El Paso to Eagle Pass, Texas; also in New Mexico, April—July. |

H. stricta B. pmmissa, Gray, l. c. San N Parry. On the Pecos; Schott.

HOFFMANSEGGIA MELANOSTICTA, Gray, l. c. p. 54, (adnot.) Pomaria melanosticta, Schauer. On
the Rio Grande beli wW the cañon of San Carlos, October, (in flower and fruit ;) Parry. Rin-
conada, and pam Neuvo ea: Dr, Edwards. Our plant differs somewhat from the

BOTANY. 59

description of Schauer in Linnea. There are only 2 or 3 pairs of leaflets, and the pod is 3 一 4-
seeded. The vexillum, also, is destitute of glands and dots.

CasPARIA, n.e sp.? Rocky hills near Santa Rosa, Chihuahua; Parry. An erect shrub, 2-3
feet high. Branches slender, flexuous, smooth. Leaflets distinct to the base, semiovate, very
obtuse. 3-nerved, very smooth. Pods (old and imperfect) about 2 inches long and one-third
of an inch wide :

CERCIDIUM TEXANUM, Gray, Pl. Wright. 1, p. 58. Common on the Rio Grande from El Paso
to Eagle Pass, forming dense thickets in many places.

CERCIDIUM FLORIDUM, Benth. in Gray, l. c. (adnot.) ; Torr. in Pacif. R. Road Expl. 6, p. 360, t.

3. On the Lower Gila and Colorado rivers; Emory, Schott. This is the Palo Verde of the
Mexicans, and the Green-bark Acacia of American travellers.

CASSIA PUMILIO, Gray, Pl. Lindh. 2, p. 180, & Pl. Wright. 1, p. 59. Elm Creek valley, near
Eagle Pass, and at the mouth of the Pecos; Schott, Bigelow.

Cassia RaMERIANA, Scheele in Linnea, 21, p. 457; Gray, Pl. Lindh. l.c. Arroyo Zoquete
and gravelly hills near Rock creek ; July— September.

CASSIA BAUHINIOIDES, Gray, Pl. Lindh. l. c., & Pl. Wright. 1, 7.59. Sandy plains and rocky
situations, Leon springs and along the Rio Grande from El Paso down to Eagle Pass ; also in
Chihuahua, Durango, and Sonora, April—August. Leaflets but a single pair in all our speci-
mens. Near Presidio San Vincente Dr. Parry found a variety with the leaflets broadly ovate.
The same form is in Mr. Wright’s collection.

Cassta LINDHEIMERIANA, Scheele, l. c., Gray, l. c. Dry ravines near the Flounce mountains..
Between the San Pedro and the Pecos; also along the Rio Grande, June, August. Arroyo del
Pozo Verde ; Schott.

Cassa Maca Gray, Pl. Wright. 1, p. 60, & 2, p. 50. Hills and rocky places. Cañon of
Bossecillos, on the Rio Grande; August. Parry, Bigelow. San Bernardino, Sonora; June.
Thurber. Leaflets sometimes 4 pairs, larger than in Wright's specimens. A neat and showy
plant,-well deserving of cultivation.

Cassia Wzranru, Gray, Pl. Wright. 2, p. 50. On the Rio Mimbres, New Mexico; June,
(flowers and fruit;) Bigelow. Sierra de los Tanos, Sonora ; Schott.

Cassta nictirans, Linn.; Torr & Gray, Fl. 1, p. 396. Comanche springs and Leon springs ;
Bigelow. Differs from the eastern plant in its narrower and more numerous seeded pods, and
in the stipitate glands of the petioles ; but it does not appear to be a distinct species.

Cassta Cuamexcrista, Linn. ; Torr. ۵ Gray, Fl. 1, p. 395. Sandy places between Ringgold
barracks and Laredo; June. Schott.

CASSIA CHAMJECRISTOIDES, ١٤ Collad. Mon. Cass. p. 134." C. cinerea, Cham. : Schlecht. With
the last ;. Schott,

Gisa OBTUSIFOLIA, Linn. ; Torr. & Gray, Fl. 1, p. 394. Island of the Lost Rock, in the
Lower Rio Grande ; Schott. .

PARKINSONIA ACULEATA, Linn.; DO. Prodr. 2, p. 486. Alluvions and prairies of the Lower
Rio Grande, and hills of the مسا‎ near Fort Yuma, California; Schott. Fort Duncan,
Texas; Dr. Edwards. Between Reynosa and Matamoras, Mexico ; Dr. Gregg. An ornamental
prickly shrub, now cultivated or naturalized in most of the warmer parts of the world, but pro-
bably, as Alph. De Candolle thinks, of American origin. According to Mr. Schott it is valued
by the Mexican Indians as a febrifuge and sudorific, and also as a remedy in epilepsy.

PARKINSONIA MICROPHYLLA, Torr. in Pacif. R. Road Expl. 4, .م‎ 82: glabriuscula ramosissima ;

60 UNITED STATES AND MEXICAN BOUNDARY.

ramulis (saepe?) in spinas abuentibus; foleis geminis vel teenis pinnatis, petiolo cammuni
exalato supra canaliculato, foliolis 4 一 7-jugis minimis (1 lin. long.) suborbiculatis late ovali-
busve obtusis subcoriaceis ; staminibus petalis longioribus. On the Colorado, near Fort Yuma;
Schott. This is an interesting addition to our Flora, being an undoubted native Parkinsonia,
entirely distinct from P. aculeata, and much more nearly related to P. Africana, Soud. (in Lin-
nca, 23, p. 38.) We have seen no specimens showing the inflorescence but only a few loose
flowers from the collections of Mr. Schott. From the fructiferous specimens it would appear
that the racemes are fewer-flowered and the pedicels shorter than in P. aculeata. The flowers,
too, are smaller, the stamens much more exserted, and the petals (except the vexillum) are
` ovate, not roundish, as in that species. The pods are nearly the same in both. These vary
from 2 to several-seeded, and are constricted between the seeds with a very long acumination.

CUESALPINIA PULCHERRIMA, Swartz; Torr. & Gray, Fl. 1, p. 391. Ures, Sonora, October ;
Thurber. : :

ALGAROBIA GLANDULOSA, Torr. & Gray, l. c. p. 399; Gray, Pl. Wright. 1, p. 60. Sandy soils
along the Rio Grande and its tributaries and in the Mexican States. Common on the bottom
lands of the Gila. This is the celebrated mesquite, so often noticed in the reports of western
exploration. Dr. Gray (l. c.) suspects that it may be united (together with P. duleis and P.
Siliquastrum) to P. juliflora. It affords a gum nearly equal to gum arabic, of which it stated
that large quantities have lately been sent to San Francisco from Mexico.

STROMBOCARPA PUBESCENS, Gray, Pl. Wright. p. 60; Torr. Pacif. R. Road Expl. 6, p. 360, t. 4.
Valley of the Rio Grande from New Mexico, 20 miles below San Elceario ; Bigelow. Bottom
lands of the Rio Gila and R. Colorado. The Screw-bean or iai cd of American travel-
lers and Tornillo of the Sonorians.

STROMBOCARPA CINERASCENS, Gray, l. c. p. 61, adnot. Boggy places, Fort McIntosh, and other
places on the Lower Rio Grande, May, November; Schott. The thorns are variable in length,
being sometimes longer, sometimes much shorter نتا‎ the leaves. Pods like those of S. pubes-
cens, except that they are a little thicker. i

NEPTUNIA LUTEA, Benth. in Hook. Torr. Bot. 4, t. 356. Painted Caves, and near Eagle Pass,
western Texas, June; Bigelow, Schott. In our specimens the fruit is sessile, while it is stipi-
tate in the Florida plant.

DESMANTHUS VELUTINUS, Scheele in Linnea, 21, p. 456; Gray, Pl. Lindh. 2, p. 183. Hills at
the Copper Mines, August; Bigelow. Common near Eagle Pass ; Schott.

Desmantuus Jamesit, Torr. & Gray, Fl. 1, p. 402; Gray, Pl. Wright. 2, p. 63. Gravelly hills
along Rock Creek.; and rocky places at the Copper Mines. J uly, (in flower,) August, (in fruit) ;
Bigelow, Parry.

Mimosa FRAGRANS, Gray, Pl. Lindh. 2, p. 182; & Pl. Wright. 1, p. 61. Head of the Rio San
Pedro; Bigelow. Eagle Pass, April—June ; Schott.

Mimosa Boreas, Gray, Pl. Fendl. p. 39, & Pl. Wright. l.c. Plains near Live Oak Creek,
September, (in fruit); Bigelow.

MIMOSA ons p Gray, M Lindh. 2, p. 181. Rocky and gravelly hills and ravines,
July ; Bigelow.

MIMOSA pysocarpa, Benth. in Gray, Pl. Wright, 1, p 62. On the Cibolo of the Rio Grande
and Rock Creek ; also hills at the Copper Mines, J uly—August ; Bigelow.

Mimosa MALACOPHYLLA, pras, Pl. Lindh, 2, p. 182, adnot., & Pl. Wright. 1, p. 163. _

BOTANY. | 61

hills near Santa Rosa, Chihuahua; Bigelow. Sometimes there are one or two short prickles or
teeth on the margin of the pods.

M. MALACOPHYLLA var. GLABRA, Gray. La Blanca on the Lower Rio Grande; Schott. The
same as No. 815 and 2235, Berlandier.

MIMosA FLEXUOSA, Benth. in Gray, Pl. Wright. 1, p. 62. Hills near Rock Creek, July ;
Bigelow. ;

MIMOSA BIUNCIFERA, Benth. Pl. Hartw. p. 12; Gray, Pl. Wright. 2, p. 61. With the last,
and at Eagle Springs. Mababi, Sonora, June; Thurber; Sierra del Pajarito ; Schott.

MIMOSA srRIGILLOSA, Torr. € Gray, Fl. 1, p. 399. On the Lower Rio Grande, May ; Schott.

MiMosa BERLANDIERI (Gray, MSS. Habbasie Rubicaulium): ‘‘fruticosa erecta; ramis et
interdum petiolis aculeis sparsis brevibus rectis armatis, junioribus puberulis setis brevioribus
parce strigosis ; stipulis ovato-subulatis ; pinnis 4—6-jugis, costis subtus strigosis ; foliolis 20—
40-jugis linearibus acutiusculis glabellis obsolete 3—4-nervatis; capitulis pedunculatis racemoso-
subpanieulatis; floribus tetrameris; calyce minimo truncato; legumine breviter stipitato
oblorgo-lineari nudo hirtello 8—10-articulato.’’ Banks of the Lower Rio Grande, towards its
mouth, November; Schott. Environs of Matamoras ; Berlandier, (No. 3146.)

ScHRANKIA UNCINATA, Willd. Sp. 4, p. 1043? Stone-wreath Hills, on the Lower Rio Grande,
April; Schott. 'The pods not being sufficiently mature, we cannot be certain of the species.

CaLLIANDRA HUMILIS, Benth. in Lond. Jour. Bot. b, p. 103; Gray, Pl. Wright. 2, p. 53. Near
the Copper Mines, New Mexico, June—August; Bigelow.

CALLIANDRA RETICULATA, Gray, l. c. With the last ; August.

CALLIANDRA HERBACEA, Engelm. in Pl. Fendi. p. 39; Gray, Pl. Wright. 1, p. 63. Low places
on the Limpio, and near Rock Creek, July; Bigelow.

CALLIANDRA CHAMÆDRYS, Engelm. l. به‎ Gray, l. c. On the more elevated parts of the Sierras
of Sonora, March—J uly; Thurber, Schott. : l

CALLIANDRA (Porroricensis, Benth. var.): glabriuscula, inermis; ramulis gracilibus; pinnis
bijugis, foliolis 4—5-jugis oblongis obtusissimis sub remotis membranaceis basi inferiore
subauriculatis ciliolatis, petiolis elongatis ; stipulis lanceolatis striatis rigidis; pedunculis
petiolo longioribus; calyce profunde 5-fido globoso corolla glabra dimidio breviore. Arroyo
de los Samotas, Sierra Verde, Sonora, August; Schott. Peduncles 11-24 inches long.
Flowers pale rose color. Filaments half an inch long. Pods not seen.

Lucasa RETUSA, Gray, l. c. p. 64. Hills and gravelly places between the San Pedro and the
Rio Grande, J uly—September ; Bigelow, Schott.

Acacta WRIGHTIT Benth. in Gray, 1. c. On the Rio Grande, Texas; and Sierra del Pajarito,
Sonora, July— August ; Schott.

Acacta GREGGI, Gray, l. c. p. 65. Dry hills, El Pasg and down the Rio Grande to the
Great Cañon ; also hills and mountains along the Gila to California, May—July.

ACACIA RIGIDULA, Benth. in Lond. Jour. Bot. 1, p. 504. Rocky hills, Leona. Also found by
Dr. Edwards and Major Eaton near Monterey, Neuvo Leon. The slender spines are sometimes
more than an inch long.

Acacia REMERIANA, Scheele in Linnea, 21, p. 456. Fort Inge, Texas; Parry. Mountains
and rocky places, Presidio del Norte, August ; Bigelow. ۱

ACACIA TEPHROLOBA, Gray, l. c. p. 65. Hills on the San Pedro or Devil's river, September ;
(in fruit :( Bigelow. ۱ ۱ ee |

62 UNITED STATES AND MEXICAN BOUNDARY.

ACACIA COULTERI, Benth. l. c.; Gray, Pl. Wright. 2, p. 53. Eagle Pass and plains, and plains
near Zoquete Oreek ; Bigelow.

ACACIA FLEXICAULIS, Benth.; Gray, l. c. 1, p. 65, adnot. Monterey, Neuvo Leon, &c.; Thurber.
This is clearly the same as 04 قاع‎ plant. |

ACACIA CUSPIDATA, Schlecht. in ی‎ 12, p. 513; Gray, Pl. Wright. 1, p. 66. A. hirta,
Nutt. in Torr. & Gray, Fl. 1, p. 404. A. Texensis, Torr. & Gray, l. c. Plains and dry places
along the Rio Grande, and in New Mexico; also in Sonora; June—October, After a careful
comparison of numerous specimens of the first and last species here quoted with an original
specimen of A. Texensis, I unite the whole without hesitation.

Acacta constricta, Benth. in Gray, Pl. Wright. 1, p. 64. Hills along the Rio Grande, from
El Paso to the Presidio del Norte ; also near Tascata, and in Sonora; May—July. Sometimes E

the leaves have only 1 or 2 pairs of pinne; but such occur chiefly on very short branches or
spurs. The leaves and young branches are strongly pubescent in specimens collected near the
Presidio del Norte by Dr. Parry. ;

Acacia ScHorrTH (n. sp.:) glabra; spinis stipularibus subulatis rectis; foliis fasciculatis
unijugis ; foliolis 3 一 5-jugis filiformi-linearibus alternis ; legumine lineari complanato toruloso
curvato, valvulis coriaceis. Near the Cañon of San Carlos, at the Comanche Crossing of the
Rio Grande, September, (in fruit); Parry. Branches flexuous terete. Petiole below the fork
one-third of an inch long. Pinnæ an inch in length. Leaflets 2 lines long, and scarcely + of a
]ine wide, thick. Spines 2—3 lines long. Peduncles slightly bracteate in the middle. Stamens .
very numerous. Legume 2—3 inches long, and 4 of an inch wide, elevated on a short stipe,
6—9-seeded, curved into a semi-circle, or even a nearly complete circle. This is a very distinct -
species, but seems to be allied to A. constricta.

_ Acacia FanwESIANA, Willd. A. Cavenia. Hook. & Arn, Bot. Beechey, p. 21; Benth. Mimos.
in Hook. Lond. Jour. Bot. l. c. Common on the boundary from Texas to California.

‘“AcACIA ToRTUOSA, Willd. Sp. 4, p. 1083, Benth. Mimos. in Hook. Lond. Jour. Bot. 1, p. 392.
A. albida. Lindl. Bot. Heg. t. 1317. Vachellia Lindheimeri seu minor. Engelm. MS. in
herb. Gray. Plains near Eagle Pass on the Rio Grande, and on hill sides, Santa Rosa, Chi-
huahua; Bigelow. Tamaulipas; Berlandier. In flower this species is readily mistaken for A.
Farnesiana ; but Dr. Engelmann had distinguished it even in that state. Flowering specimens
have been confounded with A. Cavenia, which is only A. Farnesiana. ‘The present species is
well distinguished by its pod, which is elongated-linear, 3 to 5 inches long, narrow, nearly
terete, moniliform, fleshy, and minutely tomentose; seeds uniserial, compressed, black. The
corolla is longer than in A. Farnesiana. The heads and peduncles are nearly glabrous in our
specimens.’’—A. Gray.

ACACIA? CRASSIFOLIUM Gray, Pl. Thurb. p. 317. La Peña, Cohahuila ; Dr. Edwards, Thurber.

PITHECOLOBIUM BREVIFOLIUM, Benth. in Gray, Pl. Wright. 1, p. 67. Rocky hills around the
silver mines of Santa Rosa, Coahuila. January, (with fruit of the preceding season ;) Bigelow.

ROSACEJE.
Prunus (Cerasus) VIRGINIANA, Linn. Sp. 1, p. 473. Dry ravines near Camp Bache, New
Mexico, and at the Copper Mines; July; in fruit.
PRUNIN CaPOLUN, DC. Prodr. 2, p. 539, (sub Ceraso;) Gray, Pl. Wright. 2, p. 544. 6
of the Limpio mountain, Texas ; Digelow. Sierra del Pajaritos, &c. , Sonora ; Schott, €: = -
K. Smith.

BOTANY. 63

Prunus pemissa, Nutt. in Torr. & Cray, Fl. 1, p. 411, (sub Ceraso.) On the mountains east
of San Diego, California, June, in flower; Parry. A shrub seldom more than from 4 to 8
feet high.

Prunus 1110180114, Nutt. l. c. (sub Ceraso,) € N. Amer. Sylv. 2, p. 16, t. 47; Hook. & ۰
Bot. Beechey, p. 340, t. 83. Near San Diego, and in other parts of California, May; Parry,
Thurber. This ornamental species seldom attains a greater height than 8 or 10 feet. ۵
pulp of the fruit is flesh color and rather thin, but palatable.

Prunus SUBCORDATA, Benth. Pl. Hartw. p. 308. Eastern slope of the Cordilleras of California,
and near San Felipe. A straggling bush 4 to 5 feet high. Fruit sub-globose, half an inch in
diameter, the pulp thin and disposed to separate into two valves.

PRUNUS MINUTIFLORA, Engelm. in Pl. Lindh. 2. p. 185 (sub Pruno); Gray, Pl. Wright. 1, p.
68. Gravelly places and ravines between Devil's River and the Rio Grande; also in Chihua-
hua; Parry, Bigelow.

NuTTALLIA CERASIFORMIS, Torr. & Gray, in Bot. Beechey, .م‎ 336, t. 82, & Fl. 1, p. 412
Napa county, California, March—April; Zhurber. San Luis Obispo, in the same State ; the
most southern station of this plant that has come to our knowledge.

SPIRAEA ARLEFOLIA, Smith, in Rees Cyclop.; Torr. & Gray, Fl. 1, p, 416. Monterey, Califor-
nia, May; Parry.

Sprr#a DUMOSA, Nutt. in Hook. Lond. Jour. Bot. 6, p. 211; Torr. in Stansb. Rep. p. 381, t. 4
Mountains near the Copper Mines, New Mexico, May, in flower, and August, in fruit ; Bigelow.

SPIREA CÆSPITOSA, Nutt. in Torr. & Gray, Fl. 1, p. 418. Sides of steep and almost inacces-
sible rocks on the Rio Grande, about 25 miles below El Paso, in Chihuahua, June; Zigelow.

CERCOCARPUS PARVIFOLIUS, Nutt. l c. p. 427; Hook. lc. t. 323. C. betulifolius, Nutt. l. c.
Valley of the Upper Rio Grande, and westward to California. Flowers in May and June, fruit
matures in September. The limb of the calyx early breaks away from the tube, and is carried
up, with the petals and stamens, on the elongated style, and sometimes remains there until the
fruit is considerably grown.

CowANIA Mexicana, D. Don in Linn. Trans. 14, p. 574, t. 22. C. Stansburyana, Torr. in
Stansb. Rep. p. 386, t. 3. In various parts of Sonora and western New Mexico, April —June.
My extensive series of specimens show that the two species here brought tógether are connected
by intermediate forms.

CowANIA ARLEFOLIA, Torr. in Gray, Pl. Wright. 2, p. 107. Crevices of calcareous rock on
the Rio Grande above the mouth of Pecos, October, in flower and fruit ; Parry.

ACENA PINNATIPIDA, Ruiz & Pav. Fl. Per. 1, p. 68, t. 104; Torr. & Gray, Fl. p. 430.
(Tas. XIX.) Monterey, California, April; Parry.

ADENOSTOMA FASCICULATA, Hook. ۵ Arn. Bot. Beechey, p. 139 & 338; 4. 30. Dry sandy hills
and along the base of mountains, San Diego and Monterey, May; Parry, Thurber. A thick-
set straggling bush, 7—8 feet high.

ADENOSIOMA SPARSIFOLIA, Torr. in Emory's Report, p. 140. (Tas. XX.) Western slope of
the Cordilleras of California, July ; Parry. This species was first discovered by Major Emory
اور سو‎ mountains, near Warner’s Pass. Dr. Parry states, in his notes, that it is a shrub
from 4 to 8 feet high; but Major Emory found some of it 30 feet high. The bark is reddish,
and peels off in shreds. The leaves are solitary and alternate, narrowly linear (nearly half an
inch long and half a line wide) sparsely dotted (as are the branchlets) with minute roundish
glands. Flowers in rather loose terminal panicles. Pedicels very short. Calyx turbinate-

64 UNITED STATES AND MEXICAN BOUNDARY.

campanulate, with several lanceolate bracts at the base ; 10-striate, 10-toothed ; the teeth very
obtuse. Stamens mostly 10, the filaments inserted on the outer crenulate margin of the disk,
at the summit of the calyx-tube. Ovary and style as in A. fasciculata. Fruit not known.
This seems to be a very distinct species. We have never received the plant except from the
station just noticed.

FALLUGIA PARADOXA, Torr. in Emory, Rep. p. 139, t. 2; Gray Pl. Fendl. p. 41, & Pl. Wright.
l, p. 68. Sieversia paradoxa, D. Don. Ravines and rocky places along the Upper Rio Grande,
and near the Copper Mines, New Mexico, April—June ; the fruit ripe in August.

HOoRKELIA CUNEATA, Lindl. Bot. Reg. sub fol. 1997; Torr. & Gray, Fl. 1, p. 432. Near
‘Monterey, California, April; Parry.

POTENTILLA PARADOXA, Nutt. in Torr. & Gray, Fl. 1, p. 437; Lehm. Revis. Potent. in Nov. کت‎
Act. Leopold-Ces. 23, (suppl.) p. 194, t. 62. Wet places on the Rio Grande, between El ۳
Paso and San Elceario, June, (flowers and fruit ;) Bigelow.

POTENTILLA GLANDULOSA, Lindl. Bot. Reg. t. 1583; Lehm. l. c. .م‎ 48. Monterey, California,
May; Parry. Flowers ochroleucous.

POTENTILLA THURBERI, Gray, Pl. Thurb. p. 318 ; Lehm. l. c. p. 92. Around the Copper Mines
of New Mexico, July; Thurber, Bigelow. |

POTENTILLA ANSERINA, Linn; Lehm. l. c. p. 88. San Francisco and Monterey, California,
April; Thurber, Parry.

FRAGARIA vesca, Linn.; Torr. & Gray, Fl. 1, p. 448. Pine woods near Monterey, April;
Parry.

FRAGARIA CHILENSIS, Hhrh.; Torr. & Gray, l. c. Sand-hills near San Francisco, California,

c dA aea ل‎

April; Parry. 4
10808 Ngo-MrexicaNvus, Gray, Pl. Wright. 2, p. 55. Sides of Ben Moore, near the Copper —
Mines, June, in flower and fruit ; Bigelow. The peduncles are sometimes 3-flowered. Alli
to R. trilobus, Moc. & Ses.
RUBUS TRIVIALIS, Mich. & Fl. 1, p. 296? Moist shady places, San Dd Obispo and San Diego,
California; Parry. Mabibi, Sonora, June; Thurber. s
Rusus URSINUS, Cham. & Schlecht, in Lake 2, p. 11; Torr. & Gray, Fl. 1, p. 456. New _
Almaden, California, March—A pril ; Thurber. ۱ e
RuBus NUTKANUS, Mocino ; Torr. & Gray, l. c. p. 450. Monterey, California, May ; Parry.
Rosa GYMNOCARPA, Nutt. in Torr. 6 Gray, l. c. p. 461. (TAB. XXI.) San Diego, California,
May ; Parry. A variety with larger leaves occurs at the same place.
Rosa BLANDA, Ait. Kew. (ed. 1) 2, p. 202. Moist places between the Limpia and the Rio
Grande, and westward to California; April—May. j
AMELANCHIER CANADENSIS var. ALNIFOLIA, Torr. df Gray, Fl. 1, p. 473, Near the Copper
‘Mines, New Mexico; Thurber. :
Puotinta ARBUTIFOLIA, Lindl, in Linn. Trans. 13, p. 103, 4ه‎ Bot. Heg. t. 491; Torr. تك‎ Gray,
l.c. Monterey, and Cordilleras of California. 2
VAUQUELINIA CORYMBOSA, Corr. in Humb. & Bonpl. Pl. Æquin. 1, p. 140, t. 40. Spiræa
Californica, Torr. in Emory, Rep. p. 140. Sierra Verde, Sonora, July, in flower, Schott. —
High mountains near the Gila, November, in fruit; Maj. Emory. Dr. Parry’s specimens ۱
accord with the description and figure of Humb. & ۳ except that the leaves are smaller
and less deeply toothed. In the plant collected by Maj. Emory, the leaves are ovate-lanceolate
and serrate. ———

BOTANY, 65

LYTHRACEX.

NESAEA 10161988, Gray, Pl. Wright. 1, .م‎ 68. Wet places along the Rio Grande, July to
October.

Nesma SALICIFOLIA, H. B. K. Nov. Gen. (€ Sp. 6, p. 192. Shore of the Rio Grande, from
Ringgold Barracks down to the mouth of the river, September, (in flower and fruit); Schott.

LyrHRUM ALATUM, Pursh, Fl. 1, p. 334 ; 0۲۲۰ & Gray, Fl. 1, p. 482. Common along the
Rio Grande and westward to Sonora, April to September.

CuPHEA WRIGHTII, Gray, l. c. p. 56. Between Babocomori and Santa Cruz, Sonora,
September. |

AMMANNIA LATIFOLIA, Linn. Sp. 1, p. 119; Torr. & Gray, Fl. 1, p. 480. Guadaloupe,
Chihuahua, October ; Thurber.

AMMANNIA WRIGHTIT, Gray, l. c. p. 55. Wet places in valleys of the Limpio mountains,
July; Bigelow. Margin of water holes, Sonora, September ; Thurber.

ONAGRACE E.

ZAUSCHNERIA CaLnrrFoRNICA, Presl. Rel. Hank. 2, p. 28, t. 52; Torr. & Gray, Fl. 1, p. 486.
Sonora, September ; Z'hurber.

EPILOBIUM COLORATUM, Muhl. in Willd. Enum. 1, p. 411. Between the Limpio and the Rio
Grande ; also at the Copper Mines, June to July ; Bigelow. Valley of the Mimbres ; Thurber.
Cañon of Guadaloupe, Sonora, April; Capt. E. K. Smith.

CENOTHERA BIENNIS, Linn.; Torr. & Gray, Fl. 1, p. 492. Along the Rio Grande, from New
Mexico to Laredo. Var. HIRSUTISSIMA, Gray, Pl. Fendl. p. 43. Chihuahua; Thurber.

COENOTHERA Jamesi, Torr. & Gray, Fl. 1, p. 493; Gray, Pl. Lindh. 2, p. 189. Borders of
Devil's river, Texas.

CENOTHERA SINUATA, Linn.; Torr. & Gray, Fl.1, p.494. Near the Copper Mines, July ; Bigelow.

CENOTHERA ALBICAULIS, Nutt. Gen. 1, p. 245; Gray, Pl. Wright. 1, p. 69 & 2, p. 56. Sand-
hills along the upper Rio Grande, and valley of the Gila, common.

CENOTHERA coRoNoPIFOLIA, Torr. & Gray, Fl. 1, p. 495. Banks of rivers, southern parts of
New Mexico.

CENOTHERA ROSEA, Ait. ; DO. Prodr. 3, p. 51. Valley of the Santa Cruz, Sonora, June;
Schott, Thurber.

(ENOTHERA MISSOURIENSIS, Sims, Bot. Mag. t. 1592; Torr. & Gray, l. c. p. 500. Valley of
Devil's river, Texas, April; Schott.

(ExorHERA WRIGIITIL, Gray, Pl. Wright. 2, p. 5T. Rocky ravines near El Paso and Santa
Barbara, April; Bigelow, Thurber.

CENOTHERA pRACHYCARPA, Gray, Pl. Wright. 1, p. (0; & 2, .م‎ 57. Valley of the San Felipe,
and near Frontera, western Texas, April; Thurber, Bigelow.

CENOTHERA TRILOBA, Nutt. Torr. & Gray, Fl. 1, p. 499; Gray, l. c. Dry bed of Lake Gusman,
northern Chihuahua, April; Bigelow.

(ExorHERA PRIMIVERIS, Gray, Pl, Wright. 2, p.58. Sandy and gravelly places along the
upper Rio Grande, and in northern New Mexico, March—April.

CENOTHERA MARGINATA, Nutt., in Torr. & Gray Fl. 1, .م‎ 500. Santa Barbara, New Mexico;
Thurber.

CENOTHERA SERRULATA, Nutt.; Torr. & Gray, l. c., p. 500. Western Texas, and in New
Mexico, April to September.

9k

CERE REE

yu
اد‎

227 لح د وه و ONS E NEEDED‏ ا ا

66 UNITED STATES AND MEXICAN BOUNDARY.

CENOTHERA LAVANDULEFOLIA, Torr. & Gray,l.c. Between Eagle Springs and Van 06
well, Texas, June; Bigelow.

(ENOTHERA HARTWEGI, Benth. Pl. Hartw. p. 1; Gray, Pl. Wright. 1, p. 12. Œ. Fendleri,
Gray, Pl. Fendi. p. 45. On the Rio Grande and its tributaries, from El Paso to Eagle Pass;
April—June.

(ENOTHERA TUBICOLA, Gray, Pl. Wright. 1, p. 71. Gravelly places neart he Limpio, July;
Bigelow.

CENOTHERA CHAMJENERIOIDES, Gray, Pl. Wright. 2, p. 58. Frontera and Cook's Spring, Texas,
April; Bigelow. San Bernardino and Santa Maria, Chihuahua, March; Perry.

CHNOTHERA BISTORTA, Nutt., in Torr & Gray, Fl. 1, p. 508. San Pasqual, California, May ;
T'hurber.

CENOTHERA GAURZEFLORA, Torr. & Gray, Fl. p. 510. Valley of the Gila, Sonora, May;
Schott. Dry bed of a river near Monterey, California; Dr. Andrews.

CENOIHERA CLAVJEFORMIS, Torr. & Frem. in Fremont’s 2 Rep. p. 314; Torr. in Pacific Railroad
Expl. 5, p. 360. Colorado desert ; Schott.

CHNOTHERA CARDIOPHYLLA, Torr. l. c. With the last; Schott.

CEnorHERA VINOSA, Lindl. Bot. Reg. t. 1880. San Diego, California, May; Thurber.

CENorHERA VIMINEA, Dougl. With the last, May; Thurber.

GAURA VILLOSA, Torr. in Ann. Lyc. New York, 2, p. 200. Mountain ravines and moist places
near Rock creek, July; Bigelow. ۱

Gaura 卫 RUMMONDII Torr. & Gray, Fl. 1, .م‎ 518. On the lower Rio Grande, October, (in 1

flower and fruit) Schott.

GAURA SUFFULTA, Engelm. in Pl. Lindh. 2, p. 190; Gray, Pl. Wright. 1, p. 72. Western Texas
on the lower Rio Grande ; Schott.

GAURA PARVIFLORA, Dougl., Torr. & Gray, Fl. 1, p. 519. Western Texas and New Mexico ;
also in the valley of the Gila, May—July.

GAURA coccinea, Nutt., Torr. & Gray, l. c., Gray, Pl. Wright. 1, p. 13. Organ mountains, -

New Mexico, and down the valley of the Rio Grande to Eagle Pass, west to Sonora, April—
July.

STENOSIPHON VIRGATUS, Spach.; Monog. Onagr. Torr. ¥ Gray, Fl. 1, p. 520. Central Texas;
Thurber.

卫 ULOBUS CALIFORNICUS, Nutt. in Torr & Gray, Fl. 1, p. 515. Valley of the Gila, May; Schott.
San Pasqual, California; Thurber.

JUSSLEA REPENS, Linn. Mant. p. 381; Torr. & Gray, l. c. p. 520. Southwestern Texas and
Sonora, April to October.

LUDWIGIA NATANS, Ell. Sk.1,p. 581. Western Texas, October; Bigelow. Ojo Caliente, Chi-

huahua; Thurber. A form with much smaller leaves than usual, was found in the Limpio E |

PROSERPINACA PALUSTRIS, Linn. Torr. dé Gray, Fl. 1, p. 528. Pedro Pinta, Texas, October; |

river, by Bigelow.
MYRIOPRYLLUM HETEROPHYLLUM, Miche. Fl. 2, p. 191. Ojo Caliente, Chihuahua ; Thurber.
5 LOASACEJE.

ac. Nov. Gen. & Sp. p. 11, t. 1; Gray, Pl. Wright. 1, p. 14. Common‏ سه
on hill sides along the Rio Grande; also, in Sonora, May to October.‏

BOTANY. 67

PETALONYX THURBERI, Gray, Pl. Thurb. p. 319. (Tas. XVII.) Valley of the Gila, May—
June, Thurber ; Schott.

EUCNIDE BARTONIOIDES, Zucc.; Gray, Pl. Lindh. 2, p, 191. Cations of the Rio Grande below
San Carlos, August— October ; Parry. Rocky places, Howard’s Springs; Bigelow. Ringgold
Barracks; Schott.

MENTZELIA ALBICAULIS, Dougl.; Torr. & Gray, Fl. 1, p. 534. Rocky hills on the upper Rio
Grande and its tributaries, also in Sonora, March to September. Mountains east of San Diego,
California; Parry. The oily seeds are pounded and used by the Indians as an ingredient of
their 217016 mantica, a kind of cake. |

MENTZELIA WRIGHTII, Gray, Pl. Fendl. p. 48. Mountain ravines, Rock Creek, July; Bigelow.
Valley of San Bernardino, Sonora, April; Capt. E. K. Smith.

MENTZELIA MULTIFLORA, Nutt. Pl. Gamb. p. 180; Gray, Pl. Wright. 1, p. 74. Hill sides along
the Rio Grande, from El Paso downward to Laredo, April to July.

MENTZELIA OLIGOSPERMA, Nutt. in Bot. Mag. t. 1760; Torr. & Gray, Fl. 1, p. 533. Wet
ravines on the Cibolo of the Rio Grande, July; Bigelow.

PASSIFLORACEAE.
PASSIFLORA AFFINIS, Engelm. in Gray, Pl. Lindh., 2, p. 233. Devil's river, Texas, October

` (in fruit) ; Bigelow.

PASSIFLORA TENUILOBA, Engelm. l. c. p. 192. High prairies and hill sides, Western Texas,

along the Rio Grande, September, October ; Parry, Schott.

PASSIFLORA FGTIDA, Linn. Amen. 1, p. 228, t. 19; Sp. p. 1359. Thickets, Eagle Pass, June;
Schott. A variety which seems to be intermediate between P. feetida, Cavan. and P. hibiscifolia,
Lam., having the leaves of the former and the pubescence of the latter. Mr. Schott found on
the Sierra del Pozo Verde, in Sonora, a form with velvety pubescence, and almost 3-parted
leaves, with the divisions more or less lobed and toothed.

PASSIFLORA Mexicana, Juss. Ann. Mus. p. 108; t. 38, DO. Prodr. 3, p. 324. Tubac, Sonora;
Thurber. Leaves glaucous, 2-lobed below the middle, the lobes moderately diverging, 1 to 14
inch long from the bifurcation, marked near the base with a few round brownish glands.
Flowers three-fourths of an inch in diameter, pale purple.

CUCURBITACEAE.

SIOYDIUM LINDHEIMERI, Gray, Pl. Lindh. 2, p. 194, & Pl. Wright. 1, p. 75. Presidio del Norte,
July ; Parry. Arroyos of the Limpia, Bigelow. Lower Rio Grande ; Schott. Var. TENUISECTUM,
Gray, l. c. Between the Leone and the Rio Grande ; Bigelow. Mountains of Sonora; Schott.

CUCURBITA PERENNIS, Gray, Pl. Lindh. 2, p. 193. Plains between the Rio Grande and the
Pecos, June—July ; also at the Copper mines; Bigelow. Bottom lands of Devil’s river, April
to — Schott. Grows in large patches ; fruit the size and shape of a small orange.

CUCURBITA DIGITATA, Gray, Pl. Wright. 2, p. 60. Valleys among the mountains of Sonora,
July (in flower;) Schott. |

APODANTHERA? UNDULATA, Gray, l. c, Cañons of the Rio Grande, June; Bigelow, Parry.
: Cruz, Sonora, June; Schott, T'hurber. "The Sonorians call the fruit of this plant Melon

ayota.

CYCLANTHERA DISSECTA, Arnott, in Hook. Jour. Bot. 3, p. 280; Gray, Pl. Wright. 1, p. ۰

NOE men or ee [| | | 0 | 011 ee ATIE O O, A =

68 UNITED STATES AND MEXICAN BOUNDARY.

Alluvial borders of the Gila, May; Schott. Mountains and rocky places; Puerto de Paysano,
Sonora, September (with flowers and young fruit) ; Bigelow.
ErarERIUM? WRIGHTII， Gray, Pl. Wright. Fl. 1, p. 61. Magdalena, Sonora, July ; Thurber.
ErATERIUM? CouLTERI, Gray, l. c. Hills near the Copper Mines, August, (in flower and fruit.)
We fear not sutficiently distinct from the last. We have specimens which are almost equal in

resemblance to both species.
CACTACEJE,

The plants of this family, collected on the Boundary Survey, are described by Dr. Engelmann,
in a separate article of this volume.

GROSSULACEJE.

Rises CanrronNICUM, Hook, & Arn.; Gray, in Bot. Whippl. Rep, p. 88. Napa county, Cali-
fornia, March; Thurber.

RIBES DIVARICATUM, Dougl. in Hort. Trans., T p. 515; Lindl. Bot. Reg. t. 1559. In moist
places, forming thick clumps, near Santa Barbara, California, March ; Parry. |

Rises AUREUM, Pursh, Fl. 1, p. 164. Var. TENUIFLORUM. R. sinker aide: Lindl. Bot. Reg. t.
1274. Upper Rio Grande, and at the Copper Mines ; also in Chihuahua and Sonora ; March to
April, Salinas river, California ; Parry. 1 j

Rises Menziesin, Pursh, Fl 2, p. 132. (Tas. XXIII.) Santa Barbara, California; Parry. ٢
A tall and handsome species.

Rives speciosum, Pursh, l.c.; Lindl. Bot. Reg. t. 1557; Torr. & Gray, Fl. 1, p. 545. In
ravines, from Monterey to San Diego, California, May; Parry. The most showy species = :
this genus. Its height is commonly from 6 to 8 feet.

RIBES MALVACEUM, Smith in Rees Cyclop.; Torr. & Gray, Fl. 1, p. 552. Common along the
coast of California, particularly at Monterey and Santa Barbara, April; Parry, Thurber. A
shrub with spreading branches, sometimes ten feet high. Flowers pale rose color; or in shady
places, nearly white.

RIBES SANGUINEUM, Pursh, Fl. 1, p. 164; Torr. & Gray, Fl. 1, p. 551. San Pasqual, Cali-
fornia, May ; Thurber.

RIBES LEPTANTHUM, Gray, Pl. Fendl. p. 53, & Pl. Wright. 2, p. 63. Near the Copper Mines,
and valley of the Mimbres, April; Bigelow.

م0۸

Sepum ۷۷79081255 Gray, Pl. Wright. 1, p. 76. Hills and rocky places; Mount Carmel, Chi-
huahua, September and October ; Parry. Mountains around the Copper Mines, and Puerto
de Paysano; Bigelow.

SEDUM SPATHULZFOLIUM, Hook.; Torr. & Gray, Fl. 1, p. 559. Rocky hills, P 这 asquitas， Cali-
fornia, May; Thurber.

SEDUM EDULE, Nutt. in Torr. & Gray, Fl. 1, p. 560. Dry banks near the sea at San Diego,
California ; associated with Echeveria ; Parry.

EcHEVERIA sTRICTIFLORA, Gray, Pl. Wright. 1, p. T6. White rocks near Rock Creek, western
Texas, July ; Bigelow.

ECHEVERIA PULVERULENTA, Nutt. in Torr. & Gray, Fl. 1, p. 560. E. farinosa, Lindl. in Lond.
Hort. Jour. 4, p. 292? Siena Islands, California, May ; Thurber.

BOTANY. 69

EcHEVERIA LANCEOLATA, Nutt. l. c. (Tan. XXIV.) Dry clay banks near the sea, at San Diego,
California, June; Parry. Coronados islands ; Thurber.

SAXIFRAGACEA,

SAXIFRAGA PARRYI (n. sp.) : caudice subterraneo tuberoso ovato ; foliis radicalibus suborbicu-
Jato-cordatis inciso-lobatis, lobis dentatis ; venis subtus petiolisque pubescentibus; scapis nudis
gracilibus ; floribus paucis laxe paniculatis ; calycibus campanulatis liberis, dentibus brevibus;
petalis lanceolatis brevi unguiculatis, stylis ovario subequalibus in fructu divergentibus. (Tan.
XXV.) Dry hills near San Diego and San Luis Rey, California, November—December; Parry.
Tuber about the size of a hazel-nut, fleshy. Leaves all radical, and withering away soon after
the flowers appear, about an inch in diameter, slightly pubescent above; petiole nearly as long
as the lamina. Scapes 4-8 inches high, commonly 2-4 from each tuber, a little pubescent.
Flowers 4-7 in a loose panicle or cyme. Calyx marked with 10 strong dark brown nerves, the
teeth triangular, rather obtuse, and about half the length of the tube. Petals white, nearly
twice the length of the calyx teeth. Stamens 10; filaments subulate, the alternate 8
rather shorter than the others. Carpels united below, rostrate and diverging above, pointed with
the slender styles, which are as long as the beaks. Seeds dull, angularly 4-ribbed. A remark-
able species, with the calyx and habit of a small Heuchera, but it is decandrous and the ovary
is wholly free as well as 2-celled.

SAXIFRAGA VIRGINIENSIS, Michæ. Fl.1, p. 269? Cyme very few-flowered, but in other respects
like the eastern plant. Near San Diego, California; Parry.

了 EUCHERA MICRANTHA, Dougl. in Bot. Heg. t. 1302; Torr & Gray, Fl. 1, 519. Ravines near
Monterey, California, May ; Parry.

HEUCHERA RUBESCENS, Torr. in Stansb. Rep. p. 388, t.5; Gray, Pl. Wright. 2, p. 63. Organ moun-
tains, New Mexico, November, (in fruit;) Bigelow.

HEUCHERA PARVIFOLIA, Nutt. in Torr. & Gray, Fl. 1, p. 581, Gray, l. c. p. 64. Copper Mines,
New Mexico, August; Bigelow.

LITHOPHRAGMA cYMBALARUE, Torr. ۵ Gray, Fl. 1, p. 585. Shady ravines near Santa Barbara,
California, March ; Parry.

LITHOPHRAGMA HETEROPHYLLA, Hook. d Arn.; Torr. & Gray. l. c. Near Monterey, California,
March—May ; Parry. Napa Valley ; T'Àurber.

LEPUROPETALON sPATHULATUM, Ell. Sh. 1, p. 370; Torr. & Gray, l. c. .م‎ 390. Santa Cruz,
Sonora, March ; Parry.

FENDLERA RUPICOLA, Engelm. & Gray, Pl. Wright. p. 11,t.5. Organ mountains, New Mexico,
| and rocky places along the Rio Grande, down to the Presidio, March—May.

PHILADELPHUS SERPYLLIFOLIUS, Gray, Pl. Wright. 1, p. 77. Mountains and rocky places on the
Rio Limpio, Texas, and at the Copper Mines, June—July ; Bigelow. Sonora, April; Capt. E.

UMBELLIFERE. m

HYDROCOTYLE UMBELLATA, Linn, Sp. p. 234; Torr. & Gray, Fl. 1, .م‎ 599. Rio San Antonio,
Texas; Schott. Devil's river, September; Bigelow. Bachuachi, Sonora, June; Thurber.

HYDROCOTYLE NATANS, Cyrill.; Torr. d: Gray, l. c. C. prolifera, Kellogg, Proc. Calif. Acad.
Nat. Sc. 1, p. 15. Borders of brooks, Monterey, &c., California; Parry.

HYDROCOTYLE RANUNCULODDES, Linn. f.; Torr. & G ray. l. c. Fronteras, Sonora, May;

Thurber.

Ben اول‎ SIL ede

A s

10 UNITED STATES AND MEXICAN BOUNDARY.

Bow esti LOBATA, Ruiz 0 Pav.; Torr. & Gray, l. c. p. 601. Moist shady places, near San
Diego and Monterey, California; March—April; and on the Rio Gila; Parry.

SANICULA Menziesin, Hook. & Arn. Bot. Beechey, p. 347; Torr £ Gray,l. c. p. 602. 8
near Monterey, California, April; Parry.

SANICULA BIPINNATIFIDA, Dougl. in Hook. Fl. Bor.-Am. 1, p. 258, t. 92. White Oak plains
north of San Luis Obispo, and in other parts of California, March—April ; Parry.

SANICULA LACINIATA, Hook. & Arn. Bot. Beech. p. 347: S. nudicaulis, Hook. & Arn. I. c.
Monterey, California; Parry.

SANICULA ARCTOPOIDES, Hook. & Arn. l. c. ; Hook. Fl. Bor.-Am. و1‎ p. 258, t. 91. Monterey,
California, April; Parry.

卫 RYNGIUM Leavenwortui, Torr. & Gray, Fl. 1, p. 604. Plains and rocky places between
Devil’s river and the Rio Grande, September ; Bigelow. Piedras Pintas, western Texas; Schott.

ERYNGIUM ۷۷ 505111, Gray, Pl. Wright. 1, p. 78. Western Texas, on the Rio Grande, June;
Schott, Bigelow. Sonora, June—September ; Thurber, Capt. E. K. Smith.

ERYNGIUM DIFFUSUM, Torr. in Ann. Lyc. N. York, 2, p. 207, & in Marcy Rep. p. 286, t. 6.
On the lower Rio Grande, May ; Schott.
` BERULA ANGUSTIFOLIA, Koch ; Gray, Pl. Fendl. p. 55, & Pl. Wright, 2, p. 65. Marshes of
the Limpio, Texas; and at the Copper Mines, July, (in flower and fruit;) Bigelow. Tucson,
Sonora, May; Schott.

LEPTOCAULIS ECHINATUS, Nutt. in DC. Prodr. 4, p. 107; Torr. & Gray, Fi. 1, p. 609. Plains
between Fort Fillmore and the Organ mountains, and mountains near Lake Santa Maria,
Chihuahua, April; Bigelow. On the lower Rio Grande; Schott. Sonora; Parry.

CicUTA MACULATA, Linn.; Torr. & Gray, Fl. 1, p. 610. Shady moist places on the Limpio and
Mimbres, July; Bigot, Thurber.

DAUCOSMA LACINIATUM, Engelm. & Gray, PL 2, p. 210. Western Texas, October, (in fruit ;)
Thurber. Copper Mines; Bigelow.

CYMOPTERUS MONTANUS, Nutt. in Torr. & Gray, Fl. 1, p. 624; Gray, Pl. Fendl. p.56; & Pl.
Wright. 1, p. 79.

Cymoprerts FENDLERI, Gray, Pl. Fendl. p. 57? On the upper Rio Grande, Texas, and
Chihuahua ; Bigelow, Parry.

THASPIUM ? MoNTANUM, Gray, Pl. Fendl. p. 57, var. TENUIFOLIUM, Gray, Pl. Wright. 2, p. 65.
At the Copper Mines, New Mexico, June, (in flower ;) Bigelow.

PEUCEDANUM DASYCARPUM, Torr. & Gray, Fl. 1, p. 628. Southern California: the particular
station not recorded; Parry. The fruit is nearly twice as large as in Douglas’ original
specimen, but in other respects his plant resembles ours.

PEUCEDANUM PARVIFOLIUM, Torr. & Gray, l.c. Pine woods near Monterey, California, April
(in flower, and with nearly mature fruit); Parry. Specimens from the same place, collected
by Major Wm. Rich, have ripe fruit, which is nearly orbicular, from the unusual breadth of
the winged margins.

PEUCEDANUM FENICULACEUM, Nutt. in Torr. & Gray, l. c. ? San Luis Rey, California; Parry.
We cannot be certain of the species, for want of the fruit. The divisions of the leaves are
broader than in the ordinary forms of this species.

Deweya ARGUTA, Torr. & Gray, l. c. p. 641. Near Santa Barbara; Parry. (Tas. XXVI.)

EURYPTERA LUCIDA, Nutt. in Torr. & Gray, Fl. 1, p. 629. (Tas. XXVII.) Gravelly hills
north of San Diego, California, March ; Parry.

BOTANY. 71

HERACLEUM LANATUM, Miche. Fl. 1, p. 166; Torr. & Gray, l. c. p. 632. Borders of rivulets
near Monterey, California, May, (in flower); Parry.

DAUCUS pusttius, Miche. var. SCABER, Torr. & Gray, l. c. p. 636.

OsMORHIZA OCCIDENTALIS, Nutt. in Torr. & Gray, Fl. 1, p. 639. Pine woods, Monterey,
California; Parry.

OsMORRHIZA BRACHYPODA, Torr, in Jour. Acad. Nat. Sc. Phil. n. ser. 2, p. 79. Torr. Pl.
Whippl. p. 93. With the last; Parry.

APIASTRUM ANGUSTIFOLIUM, Nutt. in Torr. & Gray, Fl. 1, p. 644. (Tas, XXVIII.) Dry
grassy hills, San Luis Rey, California; Parry.

CORNACEJE.

Cornus PUBESCENS, Nutt. in Torr. & Gray, Fl. 1, p. 652 (sub var. C. sericea,) ) Sylv. 3, p.
54. Torr. in Bot. Whippl. Rep. p. 95. San Luis Obispo and San Luis Rey, California ; Parry.
_A shrub 10 to 12 feet high.

Cornus NUTTALLII, Audubon, Birds of Amer. t. 367; Torr. & Gray, l. c.; Nutt. Sylv. 3, p. 51,
t: 97. Monterey, California; Parry.

CAPRIFOLIACEA.

LONICERA DUMOSA, Gray, Pl. Wright. 2, p. 66. Hills at the Copper Mines, New Mexico ;
June, (in flower) ; and on the Limpio, July, (in fruit); Bigelow. Hills near the Mimbres,
May; Thurber. Santa Cruz mountains; Sonora; Capt. E. K. Smith. “A luxuriant vine.”
Corolla pale greenish yellow, ringent, about three-fourths of an inch long, the tube slender,
not gibbous. Filaments smooth, except at the base. Style hairy. Except in the pubescence
I see little to distinguish this from L. albiflora.

LONICERA INVOLUCRATA, Banks; Torr. & Gray, Fl. 2, p. 9. Monterey and other parts of
California, April; Parry, Thurber. Stem 6 to 8 feet long, usually reclining on other plants.
Leaves somewhat persistent. Flowers red and orange. Berries black.

LONICERA sUBSPICATA, Hook. & Arn. Bot. Beechey, p. 349; Torr. & Gray,l. c. (Tas. XXIX.)
Bushy places on the mountains east of San Diego, California, June; Parry. Plant 3 to 4
feet high. "Flowers yellowish.

SYMPHORICARPUS MOLLIS, Nutt. in | Torr. £ Gray, Fl. 2, p. 4. Woods near Monterey, —
April; Parry.

SyMPHORICARPUS ROTUNDIFOLIUS, Gray, Pl. Wright. 2, p. 66. Organ mountains, New Mexico;
Parry. Hills at the Copper Mines, August, (flowers and fruit); Bigelow. A form with per-
fectly smooth and glaucous leaves was found near the Mimbres by Dr. Bigelow.
` Sampucus GLAUCA, Nutt. in Torr. & Gray, Fl. 2, p. 13. Var. foliis anguste lanceolatis, Gray,
Pl. Wright. l. c. Sides of Ben Moore, near the Copper Mines, June; Bigelow. Not very dis-
tinct from the next.

SAMBUCUS Mexicana, Presl; DO. Prodr. 4, p. 323 ; Gray, Pl. Wright. l.c. Banks of the Rio
Grande, near El Paso, where it becomes a low tree, 12 inches in diameter at the base ; Bigelow.
Near Monterey, California, sometimes 25 feet high, August; Parry. Mabibi, Sonora; Thurber.

72 UNITED STATES AND MEXICAN BOUNDARY.

RUBIACEAE.

GALIUM APARINE, Linn. Sp. p. 108. Sonora, June; Thurber.

GALIUM ASPERIMUM, Gray, Pl. Fendl. p. 60. Wet ravines, Organ mountains, New Mexico,
April; Bigelow. Annual. Leaves 6 to 8 in a whorl. Not very distinct from G. Aparine.

GALIUM OALIFORNICUM, Hook. & Arn. Bot. Beech. p. 349; Torr. & Gray, Fl. 2, p.20. Pine
woods near Monterey, California; Parry.

GALIUM PROLIFERUM, Gray, Pl. Wright. 2, p. 61. Rocky hills, El Paso, April.

GALIUM wICROPHYLLUM, Gray, Pl. Wright.1, p. 81. Rocky places and sides of mountains
along the upper Rio Grande, and at the Copper Mines, April.

GALIUM sUFFRUTICOSUM, Nutt. in Torr. & Gray, Fl. 2, p. 21. San Diego, California; Thurber.

Gatium WRIGHTII， Gray, Pl. Wright. 1, p. 80. Burro mountains, and Mountains of Muerte;
also on the Rio Grande, 70 miles below El Paso. The upper leaves, and sometimes the lower
also, are merely scabrous, and not hairy.

CEPHALANTHUS OCCIDENTALIS, Linn.; Torr. & Gray, Fl. 2, p. 31. Valley of the Rio Grande
and westward to California, June—August. :

BOUVARDIA HIRTELLA, H. B. K. Nov. Gen. & Sp. 3, p. 384; Gray, Pl. Wright. 1, p. 80.
Cafions of the Rio Grande, June—July ; Parry, Bigelow.

OLDENLANDIA ANGUSTIFOLIA, Gray, Pl. Wright. 2, p. 68. Rocky places along the Rio Grande
and its tributaries, from El Paso downward, June—August Sonora; Thurber. Anextremely
variable species.

OLDENLANDIA ACEROSA, Gray, Pl. Wright. l. c. Hedyotis acerosa, Gray, Pl. Wright. 1, p. 81.
Dry hill-sides, Devil's river and along the Rio Grande, September— October.

OLDENLANDIA RUBRA, vein l. c. Hedyotis rubra, Cavan. Hills at the Copper Mines, June;
Bigelow.

OLDENLANDIA HUMIFUSA, Gray, l. c. Hedyotis humifusa, Gray, Pl. Lindh. 2, p. 216. Sand
hills, Western Texas ; Bigelow.

Dropra TERES, Walt. Fl. Car. p. 81; Torr. & Gray, Fl. 2, p. 29. On the lower Rio Grande;
Schott.

VALERIANACEA, ١

VALERIANA SYLVATICA, Richards. App. Frankl. Journ. ed. 2, p.2; Torr. & Gray, Fl. 2, p.
41." Hills at the Copper Mines, April, May ; Bigelow. :

VALERIANA EDULIS, Nutt. in Torr. & Gray, Fl. l. c.; Gray, Pl. Fendl. p. 61. V. ciliata,
Torr. & Gray, l. c. Six miles west of the Copper Mines, April, May; Bigelow.

PLECTRITIS 007027, Lindl.; DC. Prodr. 4, p. 631. Monterey and east of San Diego, Cali-
fornia, April; f

ROTANY. 73

COMPOSITAE, (by A. Gray.)

VERNONIA JAMESII, Torr. & Gray, Fl. 2, p. 58; Gray, pl. Wright, 1, p. 82, & 2, p. 69; d in
Bot. Whipp. Rep. R. R. Surv. p. 95. Common in western Texas.

VERNONIA LINDHEIMERI, Gray & Engelm., Pl. Lindh. 2, p. 211. Southern Texas.

了 PEcTIS ANGUSTIFOLIA, Torr. in Ann. Lyc., Gray, Pl. Wright, l.c., etc. Pectidopsis angustifolia,
DC. Dry hills, western Texas to the Copper Mines, New Mexico, etc., and south to the Rio
Grande. According to Mr. Thurber, the fresh plant exhales the odor of lemon balm.

12801185 115858, Harv. & Gray, in Pl. Fendl. p. 62; Gray, Pl. Wright, 2, p. 69. Gathered
by all the collectors ; apparently common from the Rio Grande to Chihuahua and western
Sonora.

۳۵۵1۲8 PAPPOSA, Harv. Gray, 0l. c. This has now been traced nearly across the continent,
from Presidio del Norte (Bigelow, Parry, etc.) to the Gila and Cocospera, (Schott, Thurber, etc.)

۳۵02۲6 LONGIPES, Gray, Pl. Wright, 2, p. (0. Santa Cruz, Sonora, and vicinity ; found by all
the collectors. Berlandier collected it in Nuevo Leon; it is No. 3159 of my distribution of his
reliquie.

PECTIS IMBERBIS, Gray, l. c. Besides Wright’s specimens, gathered on the Sonoita, Sonora,
from which this remarkable species was characterized, it was also found at Janos, Chihuahua,
and elsewhere by Schott.

PECTIS PRosTRATA, Cav.; Gray, Pl. Wright, 1, p. 83. New Mexico and Sonora; Wright,
T'hurber.

PECTIS TENELLA, DO. Prodr. 5, p. 99. Rio Coleto, Texas, Thurber. It was gathered by
Berlandier at Laredo, and between the Rio Grande and the Nueces, and is No. 599, 985, 2009,

and 2415 of the American distribution.* |

IsocagPHA OPPOSITIFOLIA, R. Br.; DC. Prodr. 5, p. 107. On the lower Rio Grande; Schott,
etc. A congener of Dunantia, DC. , as Mr. Bentham has shown, (in Bot. Voy. Sulphur.) He
has indicated the practical difficulties in the nomenclature of the two genera.

TRICHOCORONIS RIVULARIS, Gray, Pl. Fendl. p. 56. Piedra Pinta Creek, Texas. Wright, Parry.

STEVIA CANESCENS, Benth. Pl. Hartw. p. 19 (an H. B. K?) Gray, Pl. Wright, 2, p. TL. A
smoothish form, gathered both in New Mexico and Santa Cruz, Sonora, by Wright & ۰

STEVIA SALICIFOLIA, Cav. Ic. t. 354.; Lower Rio Grande ; Parry. Pappus either 1—2-aristate, or
else short and awnless, where it apparently passes into S. angustifolia, H. B. K.

STEVIA MICRANTHA, Lag. Nov. Gen. & Sp. p. 21. S. macella, Gray, Pl. Wright, 2, p. 10. Cobre
(Copper Mines,) New Mexico; Wright. This being the same as a plant collected by Schaffner
on Chepultepec, and kindly communicated to me by Dr. Schultz, the distinguished investigator
of Composite, under the name of S. micrantha, I do not hesitate to restore that name, although
the specimens do not altogether accord with Lagasca’s brief character.T

*Pectis BERLANDIERI DC. l. c. (between Tantoyuca and Tampico, 732, 2152; San Fernando, Cohahuila, 1537, 3037,
Berlandier.) has not yet been re-discovered. The setae of the pappus, both of the disk and ray, vary from three to six.

7 In the portion of the collections of Berlandier, until now undistributed, occurs the following :

STEVIA BERLANDIERI (sp. nov.): fruticosa, fere glabra; foliis oppositis ovatis obovatisve obtusis in petiolum lorgum contractis
basi triplinerviis crenato-subserratis crassiusculis, summis parvis spathulatis integerrimis; corymbo polycephalo pedunculato;
capitulis brevissime pedicellatis capitato-congestis ; involucri squamis atomiferis subacutis; acheniis glaberrimis; pappo
exaristato e squamis truncatis laceris coroniformi-subconcretis.

mountains near San Carlos, Tamaulipas; Berlandier, No. 3160. Mountains near Saltillo; Gregz, No. 224. Suffruticose,

a foot or two high, leaves half an inch to an inch long, with a petiole of 15—6 lines in length, smooth and glabrous, nearly
veinless except the triple ribs at the base. Heads 31 or 4 lines long, including the flesh-colored or whitish corolla.

10k

74 UNITED STATES AND MEXICAN BOUNDARY.

CaRPHocHAETE BIGELOVII, Gray, Pl. Wright, 1, p. 89, 2, p. 71. New Mexico to Santa
Cruz, Sonora ; Bigelow, Wright, Parry. Sierra San Luis; E. K. Smith.

CARMINATIA TENUIFLORA, DC. Prodr. |, p. 267; Deless. Ic. Sel. 4, t. 99; Gray, l. c. Copper
Mines to Western Sonora.

KUHNIA EUPATORIOIDES, Linn. Narrow leaved forms, mostly var. @RACILLIMA, which abounds
in New Mexico and Sonora, extends far into Mexico, and perhaps is K. rosmarinifolia.

LIATRIS PUNCTATA, Hook. Fl. Bor.-Am. 1, p. 306, t. 105. L. mucronata, DC. Mountains of
the Limpia, and Salveto Creek, Texas; Bigelow, Parry.

CARPHEPHORUS JUNCEUS, Benth. Bot. Sulph., p. 31. Diluvial banks of the Colorado of the
West, in dry and sandy beds of ravines; Schott.

PEUCEPHYLLUM, Nov. Gen. Eupatoriacearum.

Capitulum pluri-(10-16)-Horum. ‘Involucrum circiter 12-phyllum, disco brevius, laxum ;
phyllis vix biseriatis lineari-subulatis, inferne carinato-concavis margine tenuiter scariosis,
superne foliiformibus. Receptaculum planum nudum. Corolle longe cylindrice, fauce non
ampliate, 5-dentate, dentibus ovatis patentibus. Styli rami lineares, plano-convexi, obtusissimi,
prorsus minutim glandulosi. Achenia haud matura subturbinata, teretia, hirsutissima. Pappus
capillaris, setis rigidulis pluriserialibus valde inaequalibus denticulatis, longioribus corollam
subaequantibus. Fruticulus ramosus, glanduloso-viscidulus; ramis monocephalis usque ad
apicem foliosis; foliis acerosis punctatis alternis; floribus lutescentibus.

PzEvcEPHYLLUM ScHoTTII. 一 Diluvial banks of the Colorado, in Sonora; February و‎ Schott.
Stems a span high, loosely branched. Leaves crowded, an inch or less in length, filiform,
obtuse, glabrous, but glandular when young and more or less glutinous, strongly glandular-
punctate. Head cylindraceous, half an inch long. Scales of the involucre obscurely one-nerved,
the alternate and exterior ones rather smaller than the others. Corolla glandular at the summit.
I know of no published genus to which this manifestly Eupatoriaceous plant is particularly
allied. "The name alludes to the acerose, fir-like foliage.

BRICKELLIA OLIGANTHES, Gray, Pl. Wright, 1, p. 84, £ 2, p. T1. Santa Cruz, Sonora ; Wright,
Thurber.

BRICKELLIA VERONICHFOLIA, Gray, l. c. Sonora; Schott; the habitat not recorded. This is an
abundant species in Northern Mexico. It is distributed under eight different numbers in Ber-
landier's collection.

BRICKELLIA LACINIATA, Gray, Pl. Wright, 1, p. 81. Bachimba; Thurber. Organ mountains ;
Bigelow. On the Rio Grande; Parry. Dr. Schultz, in Seemann’s Botany of the Herald, p.
301, has applied to this species the name of B. dentata, Schultz, mss., supposing it to be De Can-
dolle's Clavigera dentata, having overlooked my statement, in Pl. Wright, 1, p. 83, that the
plant of De Candolle is B. Riddellii, and that the present species was not deseribed in De Can-
dolle’s Prodomus. It is 1365 and 1783 of Berlandier’s collection.

BRICKELLIA SIMPLEX, Gray, Pl. Wright, 2 p. (3. Babocomori to Santa Cruz, Sonora. At
Bufotillo Ranch, Dr. Bigelow gathered specimens of a Brickellia with the foliage of B. simplex,
and with a similar involucre, but the heads are small and more numerous.

BRICKELLIA Wistizent, Gray, Pl. Fendl. p. 64, & Pl. Wright, l. c.; Santa Cruz; Sonora;
Bigelow, Wright, &c.

BOTANY. 75

BRICKELLIA BETONICXFOLIA, Gray, Pl. Wright, 2, p. 12. Cobre, etc., New Mexico; Wright,
Ligclow ; var. numirs. Between Babocomori and Santa Cruz, Sonora; Thurber, Wright.

DRICKELLIA CYLINDRACEA, Gray, Pl. Lindh. 2, p. 218, & Pl. Wright, l. c. Western Texas,
the Rio Grande near Eagle Pass, etc. ; Bigelow, Parry.

了 BRICKELLIA RIDDELLN, Gray,l. c. Southern and western Texas, where it abounds.

BRICKELLIA WRIGHTI, Gray, Pl. Wright, 2, p. 72. Cobre, etc., New Mexico; Wright.
Santa Cruz, Sonora; Thurber.

BRICKELLIA TENERA, Gray, l. c. Near Santa Cruz, Sonora, in a mountain ravine; Wright.

BRICKELLIA FLORIBUNDA, Gray, l.c. With the last, and also on the San Pedro, Sonora; Wright.

BRICKELLIA RENIFORMIS, Gray, Pl. Wright, 1, p. 86. Punto de Peysano; Bigelow.

BRICKELLIA BACCHARIDEA, Gray, l.c. Cobre, New Mexico; Bigelow,

BRICKELLIA GRANDIFLORA, Nutt.; Torr. & Gray, Fl. l. c. Cobre, New Mexico; Bigelow,
Wright.

卫 UPATORIUM Parryi (sp. nov): glanduloso-hirsutum, ramosum ; foliis alternis nunc oppo-
sitis cordatis acutis grosse inciso-crenatis membranaceis subtriplinerviis venosis ; petiolo elongato
marginato ; corymbis circiter 5-cephalis ; pedunculis gracilibus ; capitulis circiter 20-floris cylin-
draceis, squamis imbricatis triseriatis lanceolatis striatis aristato-acuminatis extus pubescenti-
bus; acheniis ad angulos hirtellis.—Sierra de Carmel, near the Rio Grande, Chihuahua ;
October; Parry. Branches of an herbaceous species, apparently of a diffuse habit, which has
the involucre and habit of a Brickellia (but the achenia are pentangular without intermediate
striæ,) or of an Ooclinium, but the receptacle is flat. Leaves about an inch in length and
breadth, deltoid-cordate, beset with a sparse and short pubescense or glabrate. Petioles 6 to 8
lines long, with narrow decurrent margins, hirsute with glandular or viscid hairs, like the
stem, peduncles, etc. Peduncles minutely bracteolate. Heads half an inch long. Scales of
the involucre green, lucid, appressed, strongly striate, tapering, especially the inner ones, into
a slender short awn. Flowers apparently ochroleucous. Achenia 2 lines long, with a con-
spicuous basilar callus, slender. Pappus white, scabrous.

EuPAToRIUM 8168150911 (sp. nov): cinereo-pubescens, ramosum; foliis oppositis ovato-
lanceolatis acutis integerrimis breviter petiolatis a basi rotundata tri-quinquenervatis supra
glabratis subtus tomentosis; capitulis ternis quinisve ad apicem ramulosum brevi-pedicellatis -
20-30-floris ; involucro turbinato cinereo-tomentoso ; squamis pluriseriatim imbricatis striatis,
acutis, exterioribus ovatis oblongisve, interioribus lanceolatis seu linearibus purpurascentibus ;
acheniis secus angulos scabridis.—On the Gila, Sonora; Parry. Apparently an upright herba-
ceous plant, also with much the aspect of a Brickellia, but with the characters of Eupatorium.
Leaves 2 or 3 inches long, thin, the larger an inch or more in width near the base, thence
tapering to an acute point. 了 Petioles 3 lines long. Heads half an inch long. Scales of the
turbinate and tomentose involucre rather loosely imbricated in 5 or 6 series, the exterior
successively shorter and broader. Flowers purplish. Pappus tinged with purple or brownish.
Achenia a line and a half long.*

مهممم مب 3-227

is the name which must apparently be borne by Bulbostylis spinaciefolia, DC. Prodr. 5, p.

` 139, since it has pentagonal achenia and is a true Eupatorium. The species is founded on Berlandier's Nos, 764 and 2184

(Amer. distrib. My specimens have only upper leaves, few of which are much hastate.

ua

76 UNITED STATES AND MEXICAN BOUNDARY,

Evpatorium SCHIEDEANUM, Schrad.; DC. Prodr. 5, p. 159. (E. multinerve, Benth. E.
Schiedeanoides, Schultz, Bip.:) var. GROSSE-DENTATUM. E. Sonorae, Gray, Pl. Wright, 2, p. ۰
Mountain ravine near Santa Cruz, Sonora; Wright. Lower Rio Grande, Texas, near Ringgold’s
Barracks, etc.; Schott. The latter is a more diffuse and loosely flowered form, approaching E.
paniculatum, Schrad., in the inflorescence, but not in theleaves. The form with dense corymbs
which comes from southern Mexico, Costa Rica, etc., Dr. Schultz has ascertained to be Lessing’s
E. pycnocephalum, a name not very appropriate for our forms nor for the specimens 01 Berlandier.
The plant of the Rio Grande is said by Mr. Schott to exhale a moschate odor.

卫 UPATORIUM BERLANDIERI, DC. Prodr. 5, p. 167. E. ageratifolium 8 2 Mexicanum, DC.
l. c. p. 173. E. ageratifolium, var. Texense and var. herbaceum, Gray Pl. Lindh. & Pl.
Wright. Various forms from southern Texas to the mountains near Santa Cruz, Sonora, (the
nearly herbaceous state.) In Berlandier’s reliquie distributed by me, this occurs under the
numbers 762 and 2182, (between Victoria and Tula,) and 756, 2176, (between Tula and
Tampico ;) also from San Carlos, Tamaulipas, 3164. These all belong to one species, and the
difference in the length of the pappus remarked by De Candolle is inconstant. The name of E.
Berlandieri had best be retained for the species, at least until it is identified with the Cuban
species. -

Evpatorium Wricuti, Gray, Pl. Wright, 2, p. 81. New Mexico; Wright.

EUPATORIUM SOLIDAGINIFOLIUM, Gray, l. ©. New Mexico; Wright, &c.

EvuPaToRIUM SEROTINUM, Michx. San Pedro river, western Texas; Bigelow.

EvPATORIUM CONYZOIDES, Vahl. Symb. 3, p. 96. Lower Rio Grande; Schott. Rocky ravines,
near Santa Rosa; Bigelow. Mr. Trecul gathered this at the mouths of the Mississippi. De
Candolle's Mexican stations are from Berlandier's collections, in which it occurs under numbers
1384, 2210, 2355, etc. The original colored drawing (in my possession) for the plate in Schrank’s
Pl. Rar. Hort. Monac., 1. 85, represents the flowers as white or whitish.*

CoNocLINIUM ccLESTINUM, DC. Prodr. 5, p. 135. Rio Grande, near Laredo, Schott.

CONOCLINIUM BETONICUM, DO. l. c. Lower Rio Grande, Schott. A nearly glabrous form, with
hastate-oblong and very obtuse leaves. Also a remarkable and doubtful form, with thin, gla-
brous, and entire ovate leaves from near the mouth of the Pecos. Perhaps the species, which
seems to be polymorphous, likewise includes C. Hartwegi, Walp., the Eupatorium Hartwegi,
Benth. Pl. Hartw.

CoNOCLINIUM 2155801011, Gray, Pl. Wright, 1, p. 88. From the lower Rio Grande to the
borders of Sonora; found by all the collectors. It is singular that this does not occur in
Berlandier's collection.

MIKANIA SCANDENS, Linn. Southern Texas, Schott. &c.

CoRETHROGYNE INCANA, Nutt. (excl. syn.) San Diego, California; on hills ; Py Probably
this is no more than a state of C. Californica, without chaff on the receptacle.

CoRETHROGYNE FILAGINIFOLIA, Nutt.; Torr. & Gray, Fl. 2, p. 98. There is a great deal of
confusion in the description and synonymy of this and C. tomentella in the Flora of North

© EUPATORIUM AZUREUM, DC. l. c. p. 168, No. 1380 of Berlandier's colletion, was also gathered by Dr. Gregg at Monterey,
in better specimens. The heads are 30-40-flowered; the corolla purplish, according to Gregg; and the leaves are

broadly deltoid. The species is allied to E. deltoideum, but the leaves are not hastate, the heads are shorter and smaller,

the involucre more biseriate, its outermost scales broader, and the achenia nearly glabrous.

BOTANY. 1

America and elsewhere, which it is now hardly worth while to clear up in detail, since it is
evident that the two really belong to one polymorphous species, which includes Bentham’s C.
virgata and C. obovata also. The plant has a persistent base, and biossoms at various seasons;
the wool is either permanent or deciduous, etc. Should my conjecture about C. incana prove
true, the known forms of the genus may be reduced to two species, 0. Californica and C. filagi-
nifolia.

MACHERANTHERA CANESCENS, Gray, Pl. Wright. 1, p. 89, &c. Along the boundary every-
where, from the upper part of the Rio Grande to the Gila, &c.

MACHJERANTHERA TANACETIFOLIA, Nees. Ast. p. 224; Gray, l. c. From the Pecos to Sonora,
etc. ; in various forms.

MACHAERANTIERA PARVIFLORA, Gray, l. c. Plains and mountains, southern borders of New
Mexico and adjacent parts of Sonora; also on the Gila; Bigelow, Parry, Wright, Thurber.

PSILACTIS ASTEROIDES, Gray, Pl. Fendl. p. (2. Along the Rio Grande, from Presidio to El
Paso, etc., and in Sonora.

ASTER MULTIFLORUS, Ait. Common from the lower Rio Grande to the Gila, etc. A. hebecladus
and A. scoparius, DC., are founded on exactly the same thing in Berlandier's collections.

ASTER SIMPLEX, Willd. Sonora; Wright. On the Mimbres, New Mexico; Bigelow.

Aster CARNEUsS, Nees. A. caerulescens, DC. Prodr. 5, p. 235. Western Texas; Thurber,
On the Pecos ; Bigelow.

ASTER PUNICEUS, Linn.; var. VIMINEUS, Torr. & Gray. Mimbres; Bigelow. Sicrra de los Ani-
mos; Wright.

Aster LONGIFOLIUS, Lam. On the Mimbres; Wright.

ASTER NOVI-BELGII, Linn, Also on the Mimbres, etc.; Wright, Bigelow.

Aster spinosus, Benth. Pl. Hartw. p. 20. Along the Rio Grande, below El Paso, to its
mouth.

ASTER DIVARICATUS, Nutt. From the lower Rio Grande to Sonora.

Aster ANGUSTUS, Torr. & Gray, l. c. Sand bars of the Rio Grande, below Doña Ana ; Wright,
Bigelow. Probably brought down the river from the Rocky mountains.

ASTER PAUCIFLORUS, Nutt.; Gray, Pl. Wright, 2, p. (6. Subsaline soil, west of the Chiricahui
mountains and Santa Cruz, Sonora ; Wright.

ASTER BLEPHAROPHYLLUS, Gray, Pl. Wright, l. e. Subsaline soil, Los Playos Springs, New
Mexico; JWright.

Aster Sonora, Gray, Pl. Wright, l. c. In the same region as the last two species.

Aster CHILENSIS, 2۷668. var. B. Torr. & Gray, Fl. 2, p. 112. A. Durandi, Nutt. in herb. Cali-
fornia; Rev. Mr. Fitch.

ERIGERON (C&worus) CANADENSE, Linn. On the Gila; Thurber; and doubtless almost every-

where.

ERIGERON (C@NOTUS) ERIOPHYLLUM, Gray, Pl. Wright, 2, p. TT. On the Sonoita, Sonora;
Wright.

ERIGERON MACRANTHUM, Nuti.; Gray, Pl. Fendl. p. 67, etc. Cobre, New Mexico; Wright,
Bigelow.

ERIGERON DIVERGENS, Torr. 4 Gray, Fl. 2, p.175; Gray, Pl. Wright, 2, p. TT ; var. CINEREUM.
W. Texas to the Gila (Thurber) and Tucson, Sonora; Schott.

78 UNITED STATES AND MEXICAN BOUNDARY.

ERIGERON BzLLIDIASTRUM, Nutt.; Gray, l. c. New Mexico; Wright.

ERIGERON (CŒNOTUS) SUBDECURRENS? Conyza subdecurrens, Gray, Pl. Fendl. p. 18, & Pl. Wrigh,
1, p. 112. W. Texas (on the Pecos) to the Gila and Sonora; Thurber. San Luis Rey, Califor-
nia; Parry. It is very doubtful if this be De Candolle’s plant, of which I found no specimens
in the reliqguie of Berlandier's collection.

ERIGERON GLAUCUM, Ker.; Torr. & Gray, Fl. l. c. Monterey, California ; Parry, etc.

Ericeron Dovucrasi, Torr. & Gray, l. c.; var. foliis angustissimis fere filiformibus. Moun-
tains near San Diego, California; Parry, Thurber, Schott.

ERIGERON (POLYACTIDIUM) DELPHINIFOLIUM, Willd.; Gray, Pl. Wright, l. c. Cobre, New Mexico,
&c.; Wright, Bigelow, Thurber, (a canescently hirsute variety.)

ERIGERON MODESTUM, Gray, l. c. Live Oak creek, Texas; Wright.

卫 RIGERON BIGELOVII (sp. nov.): cinero-hispidum; caulibus (6—8-pollicaribus) e basi lignescente
ramosis adscendentibus, ramulis monocephalis ; foliis linearibus spathulato-lanceolatis acutatis,
inferioribus spathulatis integerrimis in petiolum attenuatis; involucro subtriseriali, squamis
lineari-lanceolatis acuminatis margine scariosis dorso subglandulosis parcissime hispidis, exte-
rioribus brevioribus ; ligulis 40-50 uniserialibus purpureis; acheniis hispidis; pappo e setis
hispidulis 15-16 corollam disci subzquantibus et totidem squamellato-setaceis subtriplo brevi-
oribus. Near Fronteras, New Mexico, March, April; Bigelow. Also collected by Mr. Wright,
but in too few specimens for distribution. The species should rank next to E. modestum ; but
its heads are nearly twice as large; the rays (3 lines long) purple, more imbricated; the involucre
scarcely hispid, and the pappus less fragile ; the exterior series longer. It is one of the species

intermediate between Erigeron (Pseuderigeron) and Diplopappus.

DiPLoPAPPUS ERICOIDES, Torr. & Gray, Fl. 2, p. 182; var. HIRTELLA, Gray, Pl. Fendl. p. 69.
Rocky places throughout New Mexico and adjacent districts.

Distasis MODESTA, DC. Prodr. 5, p. 279. High plateaus on the Rio Grande, Pecos, etc. On
Mt. Carmel Dr. Parry gathered a glabrate autumnal form, with longer and rigid branches,
which is somewhat peculiar.

TowNsENDIA STRIGOSA, Nutt. ; Torr. & Gray, Fl. l.c. El Paso, and adjacent parts of
Chihuahua.

TowxsENDIA (MEGALASTRUM) 1178168531 : suffrutescens, viscoso-puberula ; ramis adscendentibus
(subpedalibus) apice nudis ; foliis spathulatis integerrimis setigero-apiculatis inferne in petiolum
marginatum attenuatis ; involucri biserialis squamis ovato-lanceolatis longe caudato-acuminatis
submarginatis extus glanduloso-puberulis; ligulis magnis; pappo in radio et disco conformi
multisetoso.—Aster? (Megalastrum) Wrightii, Gray, Pl. Wright, 2, p. 75. Stony hills on
the Rio Grande, 60 or 70 miles below El Paso; Wright. Mouth of the great cañon of the
Rio Grande; Bigelow. This striking plant is clearly only an extreme form of Townsendia,
with the pappus more copious and finer than usual.

EREMIASTRUM BELLIOIDES, Torr. & Gray, Pl. Thurber, p. 320; & in Pacif. R. Road Expl. 6, p.
361, 7. 6. On the desert of the Colorado of the West; Thurber. Fort Yuma, etc.; Schott.
The specimens all too young.

KEERLIA BELLIDIFOLIA, Gray & Engelm. Pi. Lindh. 2, p. 220. On the Nueces and Blanco;
Wright, Parry.

APHANOSTEPHUS RaMosissimus, DCO., Gray, Pl. Wright,l. c. On the Nueces, Rio Grande, etc.

BOTANY. 79

This varies greatly in foliage, etc. The following are some of the numbers under which it is
distributed in Berlandier’s collection: 2061, 1787, 1074, 2504, 3168, 1888, 1077, 2507.

BELLIS INTEGRIFOLIA, Michz. Low places on the Pecos, Limpio, etc.; Bigelow, Wright. The
minute hairs on the achenium are glochidiate.

GYMNoOsPERMA CORYMDBOSUM, DC. Prodr. 5, p. 312. Along the Rio Grande. All three of De
Candolle’s Mexican species must be reduced to one.

GurrERRERIA WRIGHTIN, Gray, Pl. Wright, 2,p.78. Between Babocomori and Santa Cruz,
Sonora; Wright. Cobre; New Mexico, Bigelow.

GUTIERREZIA GYMNOSPERMOIDES, Gray, l. c. Low banks of the San Pedro, Sonora; Wright.
Santa Maria, Chihuahua, 7Z'Aurber.—Lower leaves often pinnatifid,

GUTIERREZIA sPHEROCEPHALA, Gray, Pl. Fendl. p. 13, & Pl. Wright, l.c. From Indianola,
Texas, to Cobre, New Mexico, and Chihuahua.

GUTIERREZIA ERIOCARPA, Gray, Pl. Wright, 1, p. 94. Along the Rio Grande. Often con-
founded with G. spherocephala, and probably not really different,

GUTIERREZIA MICROCEPHALA, Gray, l. e. Common on the frontiers, and in Texas near the coast.

GUTIERREZIA Evruamia, Torr. & Gray, Fl. 2, p. 123. Common in New Mexico, on the Rio
Grande below El Paso, and in the northern parts of Chihuahua and Sonora, G. divaricata is
only a loosely flowered variety of this, to which many of our specimens would be referred,

GUTIERREZIA TEXANA, Torr. & Gray, l. c. Common in the middle district of Texas.

SOLIDAGO ANGUSTA, Torr. & Gray, l. c. Eastern Texas; Thurber.

SOLIDAGO NEMORALIS, 441. var. MOLLIS. S. mollis, Bartling; Gray, Pl. Wright, 2, p. 19. ۰
incana, Torr. & Gray, Fl. 2, p. 221. New Mexico and western Texas, in various places; Thur-
ber, Bigelow, Wright, Parry. The plant runs into S. nemoralis, and must be appended to that
widely distributed species.

SorLIDAG0O RapuLa, Nutt. Southern Texas; Parry. Includes S. rotundifolia, DC. and ۰
scaberrima, Torr. Gray. 7

SOLIDAGO OCCIDENTALIS, Nutt. in Torr. & Gray, l. c. Common on the banks of the Mimbres,
New Mexico; Wright, Bigelow. San Luis Rey, California; Parry.

SOLIDAGO PETIOLARIS, Ait., Torr. & Gray, l. c. Cobre, New Mexico, etc.

SOLIDAGO ELONGATA, Nutt.; Torr. & Gray, l. c. California; Schott. New Mexico; Bigelow.

8058: ۸60 Catrrornica, Nutt.; Torr. & Gray, l. c. Mountains east of San Diego; Parry, etc.
Mr. Thurber gathered a Solidago, which may be a variety of this, in Chihuahua,

SoLIDAGO CANADENSIS, Linn. var. procera, Torr. & Gray, Fl. Cobre, ete., New Mexico;
Bigelow.

LINOSYRIS ARBORESCENS, (sp. nov.): glabra, viscidula ; caule 10-pedali lignosa ; ramis apice
corymboso-polycephalis; foliis anguste linearibus acutis, ramulorum subulatis; involucro
pauciseriali disco breviore 20—25-floro, squamis lanceolatis acutis carinatis margine scarioso-
ciliolatis; appendicibus styli lanceolato-subulatis portionem stigmatiferum æquantibus ;
acheniis brevibus turgidis pubescentibus.—California ; Rev. Mr. Fitch. The flowering branch-
lets in Mr. Fitch's collection are stated to belong to ‘‘a tree 10 feet high." They are slender
and very leafy; the leaves are one or two inches in length, about a line wide, much like those
of L. vulgaris, only a little viscid. Corymb crowded. Heads three lines long; the flowers
all tubular, but occasionally a marginal one shows a tendency to become irregular, and to have
its anthers abortive. Receptacle alveolate and toothed. Achenia all fertile, short-oblong,

1

80 UNITED STATES AND MEXICAN BOUNDARY.

turgid, not compressed. This is surely a congener of L. vulgaris, and no less so, perhaps, of
Ericameria resinosa, Nutt., the ligules of which are often imperfect. In two directions, species
which I cannot separate from Linosyris make too close an approach to Aplopappus.—( Vide Pl.
Wright, 1, p. 96, & 2, p. 81.)

LINOSYRIS (CHRYSOTHAMNUS) VISCIDIFLORA, Torr. & Gray; var. PANICULATA. California; Schott.
The locality not recorded. This, with a Californian specimen gathered on the Sacramento in
Wilkes’ Exploring Expedition, perhaps belongs to an undescribed species; but the distinctions
between it and L. viscidiflora, (a bad name,) on the one hand, and Ericameria resinosa, Nutt.,
on the other, are not clear. Better specimens of these plants are needed for illustration.

LINOSYRIS GRAVEOLENS, Torr. & Gray, l. c. Cobre, New Mexico; Bigelow. Sierra de los
Animos; Wright. ۱

LINOSYRIS PULCHELLA, Gray, Pl. Wright, 1, p. 96, & 2, p. 80. Sandy banks of the Rio Grande,
New Mexico; Wright, Bigelow. Sand hills, Chihuahua; October; Thurber.

LINoSYRIS WRIGHTII, Gray, Pl. Wright, 1, p. 95, & 2, p. 80. Along the Rio Grande, New
Mexico, etc.; Wright, Bigelow. As already remarked, some forms appear to connect L. hirtella
with this species.

LINOSYRIS CORONOPIFOLIA, Gray, Pl. Wright, 1, p. 96. Lower Rio Grande to Eagle Pass, Los
Moros, etc. ; Schott, Parry, Bigelow.

LINOSYRIS? CARNOSA, Gray, Pl. Wright, 2, p. 80. Subsaline soil west of the Chiricahui
mountains; Wright. Gathered by Mr. Wright; the affinities of the plant still doubtful.

LINOSYRIS (APLODISCUS) DRUMMONDII, Torr. œ Gray, Fl. 2, p. 233. Prairies between Indianola
and San Antonio, Texas; Parry. On the lower Rio Grande; Schott.

LiwosvRis (APLODISCUS) Mexicana, Schleccht. Hort. Hal. p. 7,¢. 4. Aplopappus (Aplodiscus)
discoideus, DC. Lower Rio Grande? Schott, who also gathered a var. TOMENTOSA: pube laxa
decidua lanata. The particular locality not recorded.

LINOSYRIS (APLODISCUS) MrwzrEsII, Gray, Pl. Wright, 1, p. 97. Aplopappus Menziesii, Torr.
6 Gray. San Luis Rey, San Diego, Carisso creek, &c.; Parry, Schott, &c. Common in dry
places, growing in bunches. Dr. Hulse gathered in the valley of the Sacramento a scabrous
variety of this, with the lower leaves large and obovate.

APLOPAPPUS (ERICAMERIA) ERICOIDES, Hook. & Arn. Bot. Beech, p. 146. California; Schott.

APLOPAPPUS (ERICAMERIA) LARICIFOLIUS, Gray, Pl. Wright, 2, p. 80. Guadalupe Pass, New
Mexico; Wright. Organ mountains; Bigelow.

APLOPAPPUS PHYLLOCEPHALUS, DC. Prodr. 5, p. 347. <A. rubiginosus, Torr. & Gray, l. c.
Lower Rio Grande; Schott. The species was founded on Berlandier’s No. 2278, which is a
state of the species named A. rubiginosus in the Flora of North America, but just beginning
to blossom, and with nearly sessile heads.

APLOPAPPUS SPINULOSUS, DC. l. c. Everywhere common along streams, from Texas to Sonora.

APLOPAPPUS GRACILIS, Gray, Pl. Fendl. p. 76. Common through New Mexico and Sonora in
sandy places.

APLoPAPPUS (PRIONOPSIS) CILIATUS, DC. Prodr. 5, p. 346. Plains and alluvial banks of rivers,
western and southern Texas; Bigelow, Schott.

XawTHISMA Texanum, DC. Prodr. 5, p. 94; var. BERLANDIERI, Gray, PI. Wright, 1, p. 98.
On the Jower Rio Grande; Schott. This is the form, with very obtuse involucral scales, on
which the genus was founded, viz: Berlandier's No. 2039, misprinted 2639, gathered near

BOTANY. AL

Medina, Some of the specimens afterwards collected by Berlandier (distributed as Nos. 2562
and 2573) connect this with the variety Drummondii, (Centauridium Drummondii, Torr. ۵
Gray,) which has acute or cuspidate involucral scales.

GRINDELIA SQUARROSA, Dunal.; var. GRANDIFLORA, Gray, Pl. Wright, 1, p. 98, etc. On the
Manzanal, Texas, etc. It is No. 1921 of Berlandier’s collection.

GRINDELIA LANCEOLATA, Nult.; Torr. & Gray, l.c. Cobre, New Mexico; Thurber, Bigelow.
Probably a mere variety of G. squarrosa.

GRINDELIA ARGUTA, Schrader, in DU. l. c. Cobre cañon; Wright, Thurber. Probably this is
likewise G. squarrosa.

GRINDELIA INULOIDES, Willd.; var. MICROCEPHALA. G. microcephala, DC. Prodr. Southern
aud western Texas; Schott, Parry. This is the same as Berlandier’s plant, (No. 2057,) on
which De Candolle founded his G. microcephala. The achenia are of the same shape as in G.
inuloides ; but their thick walls are generally smooth aud even, yet some of them show traces
of the corky-rugose character of those of genuine G. inuloides.

PENTACHAETA AUREA, Nutt. in Trans. Amer, Phil. Soc. 7, p. 336; Torr. & Gray, Fl. 2, p. 219.
Var. 8. capitulis majoribus multiradiatis.—San Luis Rey; February. Var. y. capitulis multo
minoribus ; involueri squamis plerumque obtusis ; ligulis 7-10.—Cordilleras, near San Felipe,
California, ou the eastern slope; June. The first variety is a strong vernal form, with larger
heads than in my specimens from Nuttall, yet agreeing very well with his description. The
second is a later, much branched state, I believe, of the same species, although the heads are
only one-third as large, the rays and the involucral scales proportionally fewer, and the latter
either obtuse or retuse, or merely mucronate. The pappus of this occasionally consists of 6 or
8 bristles. The comparison of both forms with Nuttall’s original specimens shows that they all
belong to one species.

BRADBURIA HIRTELLA, Torr. & Gray, Fl. 2, p. 250. Eagle Pass, etc., on the Rio Grande,
Texas; Schott.

HETEROTHECA SCABRA, DC.; Torr. & Gray, l. c.. San Antonio to Presidio del Norte, etc.;
Bigelow, Schott, Parry. Very tall specimens were gathered at Presidio by Dr. Bigelow,
growing four feet high.

HETEROTHECA FLORIBUNDA, Benth. Bot. Voy. Sulph. p. 24. San Luis Rey, California; October;
Parry. This is certainly Bentham’s H. floribunda, and is the same as No. 275 of Coulter's
California collection, although the heads are somewhat larger. I fear it passes into H. grandi-
flora, Nutt.

CHRYSOPSIS CANESCENS, Torr. & Gray, Fl. 2, p. 256. On the Cibolo, Salado, and Limpio,
Texas; Zigelow, Schott.

CHRYSOPSIS VILLOSA, Nutt. San Estaban, New Mexico; Bigelow.

Curysopsis FOLIOSA, Nutt. New Mexico, northern Sonora, etc. This and C. hispida vary
greatly in appearance, and are probably to be reduced to C. villosa.

Cunysopsis HISPIDA, Hook. Clefts of rocks between the San Pedro and Pecos; Bigelow.

Curysopsis PILOSA, Nutt. On the Rio Grande near Coleto creek ; Schott.

Larnawra HALIMIFOLIA, Gray, Pl. Wright, 1, p. 100, t£. 9. Hills of the San Pedro; Wright,
Bigelow.

LaPHAMIA ANGUSTIFOLIA, Gray, l. c. High rocky hills of the Pecos, in crevices of the lime-
stone, and mountains near Live Oak creek ; Bigelow, Wright. Also between San Pedro and
the Puercos ; Schott.

11 k

82 UNITED STATES AND MEXICAN BOUNDARY.

LAPHAMIA ANGUSTIFOLIA? var. LACINIATA: caulibus elongatis diffusis; foliis oblongis subcuneatis
laciniato-lobatis.—Crevices of rocks along the Rio Grande, Texas; October; Bigelow, Schott.
This is doubtless an autumnal state either of L. angustifolia or of L. halimifolia, with weak
stems prolonged to the length of a foot. From the foliage it might as well be judged to be a
state of the latter, but the rayless heads and flowers are those of the former. It seems to indi-
cate that the two species may not really be distinct.

LAPHAMIA BISETOSA, Torr. in Pl. Wright, 2, p. 106. Limestone rocks below Mount Carmel,
on the Rio Grande; October; Parry. Heads as large as in L. rupestris.

LarHaMIA DISSECTA, Torr. in Pl. Wright, 2, p. 81. Crevices of limestone, cañon of San
Carlos, and near Presidio del Norte, on the Rio Grande ; Parry, Bigelow.

LAPHAMIA (PAPPOTHRIX) RUPESTRIS, Gray, Pl. Wright, 1, p. 99,1. 9. Crevices in basaltic
rocks on the Limpio; also San Estaban, Florence mountains, Escondido creek, etc.; Wright,
Bigelow, Parry.

LAPHAMIA (PAPPOTHRIX) CINEREA (sp. nov.): nana, lanoso-tomentulosa; caulibus subdif-
fusis usque ad apicem foliosis ; foliis oppositis rotundis subintegerrimis parvis, adultis subgla-
bratis; pedunculis folia paullo superantibus ; acheniis szepius 3—4-nervatis ; pappo rigidio tubo
corolle vix longiore.—On rocks near Escondido creek ; September ; Bigelow. This differs from
the last, possibly not specifically, in its somewhat foccose woolly pubescence, which renders all
the young parts canescent, its entire or very obscurely toothed leaves, its rather longer peduncles,
the longer proper tube to the corolla, its proportionally shorter pappus of stouter and more rigid
bristles ; and some of the achenia have four salient and unequally disposed ribs or nerves, but
the greater number three, of which two are usually approximate at one margin. "The leaves
are from three to six lines in diameter, orbicular or broadly ovate, sometimes obscurely cordate,
entire, or obsoletely repand-toothed.

PERITYLE CORONOPIFOLIA, Gray, Pl. Wright, 2, p. 82. Cobre, New Mexico; Bigelow,
Wright. Arroyo de los Nogales, Sonora; Schott.

PERITYLE Pannir, Gray, Pl. Wright, 2, p. 106. Ina cañon of the Rio Grande below Mount
Carmel; Parry.

PERITYLE AGLOSSA, Gray, l. e. With the preceding; Parry. This is an annual, not suffru-
tescent at the base, as stated in the published description ; and the larger leaves are often two
inches wide.

了 ERITYLE NUDA, Torr. Mss.; Gray im Torr. Bot. Whippl. Hep. p. 100. On the Gila, near
the Pimo village; Parry. The rays are plainly yellow.

PERITYLE EwonYr, (Torr. in Emory, Rep. N. Mex. 1848, p. 142): ligulis ovalibus; pappo
uniaristato, arista setiformi corolla breviore inferne nuda vel scabra, versus apicem parce retror-
sum vel patentissime barbellata-hispida.—On the desert of the Colorado of the West ; Emory,
Schott, etc. Fort Yuma; Major Thomas. This plant so closely resembles P. nuda in foliage,
(although the leaves are not always so much cut,) pubescence, in the size of the heads and
broad scales of the involucre, in every respect, indeed, except in the awn to the pappus, (the
squamellae of which are, perhaps, less united,) that it is far most probable the two are forms of
one species. In this case the name of P. Emoryi, which was indicated and published in 1848,
would, on all accounts, take precedence, and P. nuda be held as a variety of it. P. plumigera
is distinguished by the smaller heads, narrower involucral scales, and lon ger upwardly barbel-
late awn of the pappus.

BOTANY。 83

PERICOME CAUDATA, Gray, Pl. Wright, 2, p. 81. Cobre, New Mexico; Wright, Bigelow.
Hot Springs, east of the Mimbres; Bigelow.

BACCHARIS CŒERULESCENS, DO. Prodr. 5, p. 402. From the lower Rio Grande to the Mimbres,
and the Colorado of the West.

BACCHARIS C«ERULESCENS, DC. Prodr. 5, p. 402. var. foliis angustioribus. B. Pingrea,
Nutt. in Trans. Amer. Phil. Soc. T, p. 331, non DC. San Luis Rey, California; Parry. The
specimen accords with No. 305 of Wright's N. Mexican collection, and is, I doubt not, merely
a narrow form of B. cerulescens, DC. But it is Nuttall's B. Pingrea, which is wrongly ad-
duced as a synonym of B. Douglasii in Torr & Gray, Fl. N. Am. 2, p. 259, the real B.
Douglasii (— No. 1776 Pl. Hartw.) not being then known to the authors.

BACCHARIS coxsANGUINEA, DC. Prodr. 5, p. 408. San Diego? California; Schott.

BACCHARIS PILULARIS, DC. l. c. San Luis Rey, California; Parry.

BACCHARIS SALICINA, Torr. & Gray, Fl. On the Rio Grande and Mimbres; Wright,
Bigelow, etc.

BACCHARIS ANGUSTIFOLIA, Michx?; Gray, Pl. Lindh. 2, p. 224. Fort Inge, Texas, to the
San Pedro valley, Sonora, etc. ; Schott, Bigelow.

BAccHARIS Emory (sp. nov.): suffruticosa, glabra, paniculato-ramosissima ; ramulis angu-
lato-striatis ; foliis subspathulato-linearibus obtusis uninerviis integerrimis (subpollicaribus)
deciduis vel raris, ramulinis minimis ; capitulis solitaris geminisve in ramulos breves vel pedun-
culos paniculatos; involucro foemineo obovato majusculo multiseriali pappo dimidio breviore;
squamis glabris appressis coriaceis obtusis, exterioribus ovatis, intimis linearibus ; acheniis gla-
berrimis.—Very common on the Gila; Emory, coll. in 1846, etc. Fort Yuma, E. California;
Major Thomas, Sterile plant not seen. Involucre of fertile flowers 3 or 4 lines long ; the thick
scales closely appressed, and all the outer ones very obtuse, their very slight scarious margin
not ciliate. Pappus half an inch long, whitish.

BACCHARIS SERGILOIDES (sp. nov.): suffruticosa, glabra, confertim ramosissima ; ramis ramu-
lisque angulatis rigidis articulatis sepissime aphyllis ; foliis dum adsunt raris parvis spathu-
latis uninerviis, ramulorum ad bracteas minimas reductis ; capitulis parvis in ramulos confertis
subsessilibus, masculis magis glomeratis; involucro obovato, squamis multiseriatis appressis
glabris oblongis, vel interioribus lanceolatis; fem. acutis; masc. omnino obtusis; receptaculo
conico subpaleaceo ; acheniis glabris ; pappo brevi.—Along the Gila or Colorado ; Emory, 1846.
Dry arroyos, 50 miles west of the Colorado; Bigelow. Southern part of California; Dr. J. Le
Conte. Apparently two or three feet high, and very bushy and broomlike ; the numerous heads
only two, or, at most, three lines in diameter.

BaccHARIS BRACHYPHYLLA, Gray, Pl. Wright, 2, p. 83. Southern borders of New Mexico;
Wright.

BAccHARIS Wrieatu, Gray, Pl. Wright, 1, p. 101. Western Texas to Chihuahua ; common.

BACCHARIS PTARMICEFOLIA, DC. Prodr. 5, p. 419; Schultz, in Bot. Herald, p. 303. Hill sides
between Babocomori and Santa Cruz, Sonora ; Wright (1201). This is the same as Seemann's
plant from the Sierra Madre, and, except in the smaller leaves and heads, accords very well
with a specimen from the valley of Mexico, collected by Schaffner, and named B. ptarmicaefolia
by Dr. Schultz. It accords still better, perhaps, with the character of B. thesioides, to which
De Candolle's species and all these specimens are probably to be referred.

-—-—u-.-- ám

84 UNITED STATES AND MEXICAN BOUNDARY.

BACCHARIS BIGELGVII (sp. nov.): herbacea, glabra ; ramulis striato-angulatis ; foliis subviscosis
oblongis lanceolatisve basi in petiolum angustatis grosse argute serratis, majoribus subincisis
vel duplicato-serratis uninerviis obsolete venosis ; capitulis masculis et fæmineis laxe paniculato-
corymbosis parvis (lineas 2 longis) breviter pedicellatis 15-18-floris ; involucri squamis 3-4-
seriatis oblongo-lanceolatis sub-acutis margine scarioso eroso superne ciliatis; pappi setis fl.
masc. subclavellatis.—B. ptarmiesfolia? Gray, Pl. Wright, 2, p. 83. Mountain ravine, Santa
Cruz, Sonora; Wright (1200, male). Puerto de Paysano; Bigelow (both sexes). Oak woods
between Babocomori and Santa Cruz; Thurber. The additional specimens, of both sexes, show
this to be clearly different from the preceding, and probably an unpublished species. The
leaves in Dr. Bigelow's specimens, from which the character is principally taken, are much
broader than in Wright's or Thurber’s, more irregularly toothed or incised, and all obtuse,
while those of Wright’s are lanceolate or linear lanceolate, and often acute.

BACCHARIS RAMULOSA, Gray, Pl. Thurb. p. 301. Aplopappus (Aplodiscus) ramulosa, DC.
Prodr. 5, p. 350. Linosyris (Aplodiscus) ramulosa, Gray, Pl. Wright, 1, p. 97, & 2, p. 80.
Organ mountains, Cobre, etc., New Mexico; Wright, Bigelow. Guadalupe cañon ; Parry.
Mr. Wright and Dr. Gregg collected only the male plant, apparently the same with that pub-
lished by De Candolle from Keerl's Mexican collection. The fertile plant now being known,
the plant is found to bea genuine Baccharis. Berlandier likewise collected specimens in the
mountains of San Luis Potosi (No. 1352.)

TESSARIA (PHALACROCLINE) BOREALIS, Gray, Pl. Fendl. p. 75, & Pl. Wright, l.c. River
bottoms from the Rio Grande, New Mexico, to the Colorado of the West; gathered by all the
collectors. Shrubby, 4-8 feet high, called Arrow-wood ; forming dense thickets.

PrvucuEA cAMPHORATA, DC.; Torr. & Gray, Fl. 2, p. 261. San Luis Rey, California; Parry.
Heads rather larger and the pedicels more downy ; otherwise just as in the eastern plant,

PLUCHEA F@TIDA, DC.; Torr. & Gray, l. c. Low places on the San Pedro, Texas ; Bigelow.

> FILAGINOPSIS MULTICAULIS, Torr. & Gray, Fl. 2, p. 263, 06 in Pope R. R. Survey, t. 3. Eastern
Texas to El Paso and Chihuahua. Evidently F. Drummondii, Torr. & Gray, is not a distinct
species. It is distributed among Berlandier’s reliquie, under the Nos. 568, 1011, 1067, 1958,
2109, 2241, 2497.

DIAPERIA PROLIFERA, Nutt.; Torr. & Gray, l. c. Stony hills of the Pecos and Blanco; Texas;
Wright.

Evax (HESPEREVAX) CAULESCENS, Gray, in Bot. Whipp. Rep. p. 101, t. 11. Psilocarphus caules-
cens, Benth. Pl. Harlw. p. 319. Sacramento valley, California; Mr. ۰

PsrLocAkPHUS TENELLUS, Nuit.; Torr. & Gray, l. c., din Whipp. Rep. 1. c. With the last; Mr.
Fitch.

STYLOCLINE MicroporpEs, Gray, Pl. Wright, 2, p. 84. Fronteras, New Mexico; Wright,
Parry.

EcLiPTA ERECTA, Linn.; var. BRACHYPODA, Torr. & Gray. San Antonio, San Pedro, and the
lower Rio Grande, Texas; Schott, etc.

BORRICHIA FRUTESCENS, DO. Texas, on the Pecos; Wright. Galveston and the lower Rio
Grande ; Schott.

SILPHIUM SCABERRIMUM, Ell; Torr. عل‎ Gray, Fl. 2, p. 279. On the Sabinal, Texas ; Wright.

BOTANY. 85

BERLANDIERA Texana, DC. Prodr. 5, p. 516; Deless. Ic. Sel. 4, t. 26. Coleto creek and the
Rio Grande, Texas; Schott.

DgRLANDIERA LYRATA, Benth. Pl. Hartw. p. 17. Cobre, Mimbres, Mule creek, etc , New
Mexico; Bigelow, Wright. On the Rio Grande and in the Sierra Madre, Sonora; Schott, etc.

ENGELMANNIA PINNATIFIDA, Torr. & Gray. l.c. Rock creek, Texas; Bigelow. On the Rio
Grande, at Cleto creek; Schott. A marked variety of this, with single and larger heads,
smaller pappus, and less lobed leaves, was gathered by Thurber at Ojo Caliente, Chihuahua.

MELAMPCDIUM CINEREUM, DC.; Gray, Pl. Wright, 1, p. و103‎ & 2, p. 85, & var. RAMOSISSIMUM
(M. ramosissimum, DC.) Common in Texas and New Mexico. Very various forms occur in
Berlandier’s collection, under Nos. 833, 2242, from San Fernando, Coahuila ; 1492, 1881, from
Bexar; and 607, 2017, from Laredo and the Nueces.

MELAMPODIUM 11151010 5, H. B. K.; Gray, Pl. Wright, 2, p. 85. Between the San Pedro and
Santa Cruz, Sonora; Wright. Accords well with Mexican specimens collected by Schaffner.

MELAMPODIUM LONGICORNU, (Gray, Pl. Thurber, p. 321): annuum, hispidulum, diffuse ramo-
sum; folis lanceolatis subintegerrimis; pedunculis alaribus filiformibus (4-2 unc. longis)
monocephalis ; involucri squamis internis fructiferis 7-10 nervoso-striatis dorso vix muricatis
apice in cornu longissimum extus sericeo-puberulum circinnatum productis; ligulis aureis
oblongis.—Near Santa Cruz, Sonora; Thurber. Santa Magdalena, Sonora; Schott. The pub-
lished character of this curious species is here somewhat amended, since Mr. Schott’s specimens
(which are in good flower, while those of Mr. Thurber were in fruit) show conspicuous rays much
longer than the disk ; but they have the same long and silky horns. The leaves are not always
perfectly entire, nor all obtuse.

DICRANOCARPUS, Nov. Gen.

Capitulum pauciflorum ; floribus exterioribus 3-4 femineis subradiatis, ligula minima 2-3-
loba, stylo breviore; disci totidem sterilibus, tubo corollz cylindrico, limbo cyathiformi 5-fido.
Involucrum 1—2-bracteolatum (bracteolis linearibus parvis), 3-4-phyllum: squame oblonge,
obtuse, membranacex, erect, subplane, demum decidus. Receptaculum planum: pales
lineares parve inter flores. Anthero oblongæ, ecaudate. Stylus fl. masc. inclusus, indivisus,
apice clavato-pubescens ; fl. foem. bifidus, ramis inappendiculatis. Ovaria disci inania, epap-
posa. Achenia (radii) difformis, nempe 1-2 linearia vel subulata, subteretia, levia, persis-
tentia, aristis 2 validis levissimis divergentibus seu recurvis persistentibus cornuta; cetera
breviora et crassiora, intus sepe tuberculato-rugosa, aristis brevioribus vel obsoletis.— Herba
annua, gracilis, fere glabra, Heterospermi facie, microcephala ; foliis oppositis 3—5-sectis, sum-
misve integris, filiformibus; capitulis solitariis pedunculatis ; floribus flavis.

DIcRANOCARPUS PARVIFLORUS, Gray, Pl. Thurber, p. 322, adn. Heterospermum dicranocar-
pum, Gray, Pl. Wright, 1, p. 109. Plains below San Carlos, Tamaulipas; Parry. Only
mature achenia of this plant were known, from Wright's first collection, persisting on the
receptacle from which everything else had fallen. "The flowers, etc., furnished by Dr. Parry,
enable us to complete the characters ; these show that the plant is by no means a Heterosper-
mum, (although allied to that genus,) but a new generic type which, according to the classifi-
cation adopted, must be referred to the rather incongruous subtribe Melampodinee. The
flowering heads are only a line and a half in length, and the scarcely explanate ray-corollas are

MPH EGER

86 UNITED STATES AND MEXICAN BOUNDARY.

smaller than those of the disk. The fertile ovaries, at least the one or two which make the
longer and subulate achenia, begin to elongate soon after anthesis, and to project to twice or
thrice the length of the involucre. The scales of the latter subtend the fertile flowers, but do
not inclose or embrace them. Pale of the receptacle much smaller than the involucral scales,
linear, plane, forming a circle between the ray and the disk, one subtending each sterile flower.
Sterile style barely bidentate at the apiculate tip. The longer achenia, which usually persist
after the fall of the involucre, etc., are from 3 to 44 lines long, (excluding the awns,) barely
half a line in thickness, slightly obcompressed, even, not at all margined, tipped with two
stout, diverging or sometimes recurved-spreading, smooth, rigid, inarticulated and persistent,
subulate awns, of 14 to 3 lines in length. There is usually only one such achenium to each
capitulum. The others are shorter and thicker, and tuberculate-rugose inside, but otherwise
similar, or one of them barely 2 lines long, oblong, truncate at both ends, the apex bearing t wo
very short and divaricate or almost obsolete awns or horns.

PARTHENIUM INCANUM, H. B. K.; Gray, Pl. Wright, 1, p. 103, & 2, p. 85. P. ramosissimum,
DC. Prodr. b, p. 532. From the Pecos to Cobre, etc.; Bigelow, Wright, Schott. On the Rio
Grande, below Mount Carmel; Parry.

PARTHENIUM ARGENTATUM (sp. nov.): fruticosum, pube brevi appressima sericeo-incanum ;
foliis spathulato-lanceolatis oblongisve in petiolum longe attenuatis parce dentatis seu laciniatis
sub-triplinerviis ; ramulis floridis elongatis nudis oligocephalis; involucri squamis obtusissimis و‎
acheniis sericeis; pappo e paleis 2 membranaceis lanceolatis.—Near Escondido Creek, Texas, in
rocky places, Sept. 1852; Dr. Bigelow.—A well marked species, connecting the sections Argy-
rocheta and Parthenicheta; the leaves and branches whitened with a very fine and close silky-
silvery pubescence, which appears to be wholly or nearly persistent. Leaves one to two inches
long, including the tapering base and petiole, 2 to 5 lines wide, mostly acute, scarcely veined,
beset on each margin with from one to three salient teeth, or sharp lobes. Flowering branchlets
slender, 4 to 8 inches long, nearly leafless and peduncle-like, bearing 3 to 7 sub-sessile heads
(as large as those of P. incanum) in a cluster. Exterior scales of the involucre short, orbicular-
ovate; the inner orbicular, scarious-membranaceous. Pales of the pappus lanceolate or oblong-
lanceolate, rather narrower and less obtuse than in P. Hysterophorus, puberulent, the inner
edge more or less adnate to the base of the broadly obovate and cucullate emarginate ligule.

PARTHENIUM HysrEROoPHORUS, Linn. Texas, etc. ; common in low places.

PARTHENICE MOLLIS, Gray, Pl. Wright, 2, p. 85. Near Santa Cruz, Sonora; Wright, Thurber.

EuPHROSYNE AMBROSLEFOLIA, Gray, Pl. Wright, 1, p. 102, & 2, p. 85. Near Conde's Camp, New
Mexico; Wright. Cook's Springs; Bigelow.

Iva pEALBATA, Gray, Pl. Wright, 1, p. 104. Leon Springs; Bigelow. Lagunas de Patos,
Chihuahua; Thurber.

DICORIA, Torr. & Gray, in Emory, Rep., 1848, p. 143.

Capitulum monoicum; floribus fo mineis 2 in ambitu, masculis 8-12 in disco. Involucrum
patulum, duplex, exterius e phyllis 5 ovalibus herbaceis uniseriatis, interius e squamis 2 orbicu-
latis tenuiter scariosis planis mox accrescentibus, utraque florem foemineum fulerante. Recepta-
culum parvum, planum, paleis angustis lineari-spathulatis inter flores. Fl. Foem. Corolla
nulla: stylus alte bifidus, ramis linearibus glabris. FI. mase. Corolla obconica, 5-dentata.
Anthers vix coalite, sed filamentis monadelphis. Stylus abortivus in synemate apice 5-dentato

BOTANY. 8T

inclusus, simplicissimus. Ovarium nullum. Achenia obcompresso-plana, ala laciniata circum-
data, eum squamis fructiferis petaloideo-scariosis iis majoribus involucrum externum multoties
superantia. Pappus brevis, plurisetulosus, deciduus vel evanescens.—Herba humilis, ramosa,
hispidulo-canescens, alternifolia; capitulis racemoso-paniculatis, fructiferis cernuis.

D. canescens. In the sandy desert of the Gila and of the Colorado; Emory. A small speci-
men of this curious plant was brought home by Col. Emory from his reconnaissance of the Gila,
etc., in 1846; but it has not again been met with. The base of the plant is unknown. Leaves,
at least the upper ones, alternate, oval, obtusely dentate, on slender petioles, scabrous or hispid,
and when young canescently villous on both sides; those of the flowering branches gradually
reduced to small and spatulate bracts. Heads short-pedicelled, arranged in loose and nearly
leafless spikes or racemes, which are panicled at the summit of the stem in anthesis, only one
and a half lines long ; but in fruit the whitish and somewhat glandular and erose pair of inner
involucral scales become three or four lines long and almost as broad ; they are loosely appressed
to the achenia which they subtend, and appear to be deciduous with them at maturity. ۵
mature achenia are about 3 lines long, and 2 lines wide, including the strong laciniate-toothed
and incised wing, both faces slightly hispid, and carinately one-nerved in the middle ; near the
summit of the nerve of the inner, and sometimes of the outer face also, a small crest often appears
like the rudiments of an anterior and posterior wing. Although the full-grown achenia com-
monly appear destitute of a pappus, yet in the flowering state there is always a rather con-
spicuous ring of short bristles surrounding the base of the naked style, and traces of it are
generally discernible at maturity. The bristles are united at the base into a ring, and appear
to form a true pappus. They consist, however, of single rows of cells, exactly like the short
and fine bristly hairs which fringe the margin of the inner involucral scales. It will be seen
that the genus belongs to the division Ive of De Candolle. The name (from dc, two, and
Kopo, a bug,) alludes to the two achenia appearing like bugs, or like the achenia of some species
of Coreopsis.

AMBROISA PsILOSTACHYA, DC. Prodr. 5, p. 526 ; Gray, Pl. Wright, 1. c. A. coronopifolia, Torr.
£ Gray. Common, from Texas to Sonora. It occurs both with unarmed and tuberculate fruit.*

FRANSERIA TENUIFOLIA, Var. TRIPINNATIFIDA, Gray, l.c. Common from Texas to Sonora. This
is both Ambrosia fruticosa (excl. var. 8) and A. confertiflora of De Candolle; but none of the
forms in Berlandier's collection are at all shrubby.

FRANSERIA HOOKERIANA, Nutt. El Paso to Sonora, etc.; common.

FRANSERIA DUMOSA, Gray, in Frémont, 2d Exped. p. 316 ; var. ALBICAULIS .F. albicaulis, Torr.
Pl, Frém. p. 16. Desert of the Colorado of the West; common; Thurber, Bigelow, Schott.

FRANSERIA DELTOIDEA, Torr. Pl. Frémont, p.15. Valley of the Gila; Parry. A well-marked
species ; but it should be compared with F. chenopodifolia, Benth. Bot. Voy. Sulph., from lower |
California.

* The following is an undescribed species, occurring in Berlandier's reliquie :

AMBROSIA CHEIRANTHIFOLIA, (p. nov.) : humilis, pube minuta canescens; ramis foliosis ; foliis oblongo-lanceolatis seu
oblongo-spathulati sessilibus, superioribus flores foemineos fulcrantibus ; capitulis masculis elongato-racemosis
ebracteatis ; fructibus نه‎ spinis crassis.— San Fernando, Cohahuila, 1543, 3043.—A perennial herb, apparently
not over a foot in height, considerably branched. Leaves an inch or rather more in length, 3 to 6 lines wide, all undivided
and entire, whitened both sides with a fine and short appressed pubescence. Sterile heads 24 lines long, nearly glabrous,
armed with four or five short and stout spines, which are about the length of the similar beak.

ورن د

88 UNITED STATES AND MEXICAN BOUNDARY.

HYMEXOCLEA MoNO3YRA, Torr. & Gray, Pl. Fendl. p. 79, & Pl. Wright, l. c. Common on the
frontier, from Eagle Pass, Texas, to Sonora.

ZINNIA TENUIFLORA, Jacq. lc. Rar. 3, t. 590; Gray, Pl. Wright, 2, p. 86. Sonora and Chi-
huahua; Thurber, Schott, etc.

ZINNIA (DIPLOTHRIX) acerosa, Gray, Pl. Wright, 1, p. 106. Dry hills, from Eagle Springs,
etc , to El Paso; Bigelow, etc.

ZINNIA (DIPLOTHRIX) GRANDIFLORA, Nutt.; Gray, Pl. Wright, 1, p. 105. Sonora, Chihuahua,
New Mexico, and W. Texas; gathered by all the collectors.

ZINNIA (DIPLoTHRIX) PUMILA, Gray, Pl. Fendl. p. 81, & Pl. Wright, l. c. Sonora, lower Rio
Grande, etc. Intermediate forms appear to connect this with the last.

ZINNIA (HETEROGYNE) ANOMALA, Gray, l. c. t. 10, f. 2. Eagle Pass on the Rio Grande (Bige-
low) to the San Pedro, Pecos, etc.

HELIOPSIS PARVIFOLIA, Gray, Pl. Wright, 2, p. 86. Between Babocomori and Santa Cruz,
Sonora; Wright, Thurber. Some of Mr. Thurber's specimens have larger leaves than those of
Wright.

HELIOPSIS BUPHTHALMOIDES, Dunal, which is also H. canescens, H. B. K. Between San Ber-
nardino and Janos, Chihuahua; Thurber.

Harea TEXANA, Gray, Pi. Fendl. p. 83, d Pl. Wright, l. c. Gravelly plains, western and
southern Texas.

LEPACHYS CoLUMNARIS, Torr. & Gray, Fl. 2, p. 215; & var. PULCHERRIMA. Western Texas to
New Mexico.

Lepacuys TAGETES, Gray, in Bot. W hippl. Hep. p. 103. L. columnaris, var.? Tagetes, Gray,
Pl. Wright, l. 6. Western Texas to El Paso, etc.

RUDBECKIA FULGIDA, Ait, Western Texas; Bigelow.

ALDAMA UNISERIALIS, Gray, Pl. Lindh. 2, p. 228. Southern Texas; Schott, etc.

TiELIOMERIS MULTIFLORA, Nult.; Gray, Pl. Fendl. p. 87; and var. HISPIDA, Gray, Pl. Wright,
2, p.87. New Mexico, Sonora.

HELIOMERIS TENUIFOLIA, Gray, l. c. From the San Pedro, Western Texas to Sonora,
Chihuahua, etc.

了 LOURENSIA cernua, DC. Prodr. 5, p. 593. From the Pecos and Eagle Pass, on the Rio
Grande, to the Mimbres, etc., ‘‘sometimes covering large tracts of ground in villages and
Mesquite bottoms ;’’ Schott.

卫 NCRLIA CALIFORNICA, Nutt. in Trans, Amer. Phil. Soc. T, p. 357. San Diego, California ;
Schott.

ENCELIA CONSPERSA, Benth. Bot. Voy. Sulph. p. 26. Diluvial banks of the Colorado; February;
Schott. This must be Bentham’s E conspersa; but the involucre is more’ pubescent than he
describes, the rays glabrous, and the foliage retains much of the close cinereous pubescence.
The heads, also, are quite small. It is probably the same as No. 308, of Coulter's Californian
colleetion.

EwcELIA Nivea, Benth. l. c. E. farinosa, Gray, in Emory Hep. p. 143. On the Gila;
Emory, Parry, etc., and the Colorado of the West; Bigelow. This is the same as Coulter's
No. 327, and must be Bentham’s E. nivea, from Lower California, although the characters do
not wholly accord.

BOTANY. 89

SIMSIA (GERHA) CANESCENS, Gray, Pl. Fendl. p. 85. Sand hills near Fort Yuma, California,
January ; Schott. A striking species, with a remarkably white-woolly involucre and large
showy rays. A less hairy form with laciniate leaves was gathered on the Gila by Dr. Parry.

SrMsIA (GEn za, sed eradiata) FRUTESCENS, (sp. nov.): hispidulo-scaberrima, ramosissima; foliis
parvis (1-2-pollicaribus) oblongis seu ellipticis utrinque obtusis integerrimis, petiolo nudo ;
capitulis longiuscule pedunculatis ramulos terminantibus discoideis ; involucri squamis exterio-
ribus lanceolatis ovatisve acuminatis subsquarrosis albo-hirtis, interioribus obovatis obtusis;
acheniis margine cum aristis brevibus (interdum fere obsoletis) longissime villosissimis. Agua
Caliente, on the Gila; Colonel Emory, November 28, 1846. Sierra Prieta, near Fort Yuma,
E. California, December, 1854; Schott. Also gathered (with rather large heads) by Colonel
Frémont, in 1849, somewhere in the interior country of California. Fragments of this plant,
too poor to characterize, have been known for some years in a small collection made by Colonel
Emory in his earliest exploration of the Gila country. There are now good materials at hand.
It appears that the plant must be associated with another from the same region, upon which I
formerly proposed to found a genus under the name of Gerca, but afterwards (Pl. Fendl. l. c.)
concluded to append to Simsia. "The present species is remarkably distinguished, however, by
its woody or suffruticose, slender stems, (apparently belonging to a low and much branched
bushy plant,) and by the total absence of the rays, which are remarkably large in its congener.
Very likely the genus Gerza (placed between Simsia and Encelia) should be re-established for
these two species; but for the present they may be appended to Simsia, although new dis-
coveries may more probably approximate them to Encelia. The heads vary from a quarter to
half an inch in diameter. The awns of the pappus are often as long as the much elongated
` and dense fringe of soft white hairs which surround the otherwise glabrous achenium, but always
covered with similar long hairs. Sometimes they are almost obsolete, or reduced to a slender
base for the insertion of the tuft of hairs.

SrusrA (GERÆA) scaposa, Gray, Pl. Wright. l. c. Stony hills between the Mimbres and the
Rio Grande, New Mexico; Wright. :

SrwsrA EXARISTATA, Gray, Pl. Wright. 2, p. 81. On the San Pedro, &c., Sonora; gathered
by all the collectors.

Stmsta (BARRATTIA) catva, Gray, Pl. Lindh. 2, p. 228. Throughout southern and western
Texas; * common on dry and stony hill-sides of the chalk and oolite ;’’ Schott.

VIGUIERA CORDIFOLIA, Gray, Pl. Wright. 1, p. 107, 2, p. 89. Common in New Mexico and
northern Sonora and Chihuahua ; gathered by all the collectors.

VIGUIERA LAXA, DC.; Gray, l.c. Cobre, &c., New Mexico; Wright.

VIGUIERA LACINIATA, (sp. nov.): frutescens, hispidulo-scabra; foliis plerisque alternis subcon-
fertis petiolatis hastato-lanceolatis incisis seu laciniato-pinnatifidis subtus grosse reticulatis !
rigidis, summis parvis bracteiformibus ; capitulis geminis ternisve breviter pedunculatis; invo-
lucri 2-3-serialis squamis ovato-oblongis vix appendiculatis ; receptaculo planiusculo ; ligulis
integerrimis ; acheniis subciliatis aristis palezeformibus 2 et squamellis latis apice eroso-dentatis
6 一 8 coronatis.—Rancho Gamacha, east of San Diego, California, September, 1855 ; Schott. A
remarkable species, apparently a low and more or less shrubby plant, with slender branches.
Leaves about 14 inch long, including the petiole, thin but rigid, very scabrous, the coarse
teeth, or lobes, ovate or triangular, blunt. Heads nearly half an inch long ; rays nearly of the
same length. Squamelle of the pappus thick. Pales of the receptacle acutish.

12k

5
uj‏
Eis‏ هوم سه ه

90 UNITED STATES AND MEXICAN BOUNDARY.

AcrtNoMERIS WRIGHTII, Gray, Pl. Fendl. p. 85, & Pl. Wright. l. c. Between Cobre and
Conde's Camp, New Mexico, etc.; Wright, Thurber.

ACTINOMERIS LONGIFOLIA, Gray, Pl. Wright. 2, p. 89. Mountains east of Santa Cruz, Sonora ;
Wright.

TITHONIA TUBEFORMIS, Cass. Magdalena, Sonora; Thurber. ‘‘ Flowers orange-yellow.”’

HELIANTHUS CILIARIS, DC. Prodr. 5, p. 587. From the lower Rio Grande to the Gobre, etc. ;
New Mexico; also in Sonora, where Mr. Thurber gathered a form with remarkably broad leaves.

HELIANTHUS GROSSE-SERRATUS, Martens ; var., Gray, Pl. Wright. 2, p. 89. Valley of the Mim-
bres, New Mexico; Wright. Between the Rio Salado and Victoria, Texas; Schott.

HELIANTHUS MAXIMILIANI, Schrad.; DC. l. c. Leon Springs, and on the Limpia; Bigelow.
Rio Seco, Texas; Schott.

HELIANTHUS ANGUSTIFOLIUS, Linn. Between Indianola and Victoria, Texas; Schott.

HELIANTHUS LENTICULARIS, Dougl. in Bot. Reg. t. 1265. Valley of the Gila; Schott. Common
in Texas and New Mexico.

HELIANTHUS PETIOLARIS, var. CANESCENS, Gray, Pl. Wright. 1, p. 108, £ 2, p. 89. The remark-
ably silvery-canescent form. On the Rio Grande, below El Paso; Wright, Bigelow, etc:

HELIANTHUS，in Pl. Wright. l. c., referred to H. petiolaris. Cobre, Wright, (1231,) Escondido
creek ; Bigelow. A singular and still doubtful plant.

HELIANTHUS CUCUMERIFOLIUS, Torr. & Gray, Fl. 2, p. 319. On the lower Rio Grande; Schott.

HELIANTHTS CUCUMERIFOLIUS, var. ۳۸2۵005, H. praecox, Englm. & Gray, Pl. Lindh. H. debilis,
var. Torr. & Gray, Fl. l. c. Cleto creek, Texas ; Schott.

HELIANTHUS ARGOPHYLLUS, Torr. & Gray, l. c. Cleto creek, between Victoria and San Antonio,
Texas; Schott. A striking species, recently introduced into the gardens,

HELIANTHUS (HARPALIUM) TEPHRODES, (sp. nov.): humilis, pube appressissima canescens ;
foliis plerumque alternis ovatis petiolatis subserratis basi trinerviis, junioribus cano-argenteis ;
pedunculo gracili monocephalo ; involucri squamis ovato-lanceolatis mucronato-acutatis ; pappo
e squamellis paleisve plurimis, majoribus 1 一 2 sspius aristiformibus deciduis.—Mirasol del
Monte, in the Californian desert of the Colorado, in sandy places by the road-side, October, 1855;

Schott. The specimen is incomplete, and hardly sufficient for proper determination ; the base -

of the stem and the root unknown. The stems or branches collected are scarcely a foot long,
and slender. Leaves about an inch long. Scales of the involucre merely biserial. Rays about
12, yellow; disk-corollas tipped with purple. The chaffy awns of the pappus are sometimes
elongated, but often one or both of them reduced to strong squamelle, like the rest.

COREOPSIS (AGARISTA) CALLIOPSIDEA. Agarista calliopsidea, DC. Prodr. 5, p. 569. Moist
and grassy plains between Monterey and Santa Barbara, California. An unpublished Peruvian
species connects Agarista with Coreopsis, of which it can form only a section.

CoREOPSIS CARDAMINEFOLIA, Torr. & Gray, Fl. 2, P 346. Low places on the Limpia, Rio
Grande, etc.

COREOPSIS DRUMMONDII, Torr. & Gray, var. Western Texas ; Wright.

'TTHELESPERMA FILIFOLIUM, Gray, in Kew Jour. Bot. 1l, p. 252, & Pl. Wright. l.c. Com-
mon in Southern and Western Texas.

THELESPERMA GRACILE, سيج‎ l.c. From the Limpia to Cobre, New Mexico, and Santa
Cruz, Sonora, (Schott.)

THELESPERMA SUBSIMPLICIFOLIUM, Gray in Hook. Kew Jour. Bot. 1, p. 252 (nom. paullo
mutatum): foliis rigidis anguste lineari-filiformibus, caulinis simplicibus trisectisve, inferiori-

BOTANY. : 91

bus et radicalibus interdum 5-sectis vel biternatisectis ; capitulis radiatis ; acheniis fusiformibus
(extimis tantum tuberculato-rugosis) pappo bicorni brevissimo erecto nunc fere obsoleto coronatis.
Cosmidium simplicifolium, Gray, Pl. Fendl. p. 86. Gravelly hills, near Sacati; Bigelow. San
Pedro River, Sonora; Schott. This has been confused both with T. graciles and T. filifolium,
and specimens in Wright's collection have perhaps been distributed as a form of the latter. 8
rigid stems and foliage accord with the former, though the leaves are commonly less divided ;
but the rays distinguish it from that species, while the pappus (reduced to two exceedingly
short or obsolete teeth, which are strictly erect, and slightly hairy, but not barbed) distinguishes
it from both species. A nearly or quite simple leaved state of this species is my Cosmidium
simplicifolium, which name, a little altered to bring it nearer the fact, it is proposed to retain.

COSMOS BIPINNATUS, var. PARVIFLORUS, Gray, Pl. Wright. 2, p. 90. From the Cobre, New
Mexico, to Santa Cruz, Sonora; Bigelow, Wright, Thurber.

BIDENS BIPINNATA, L. Chihuahua and Sonora; Thurber. Mountains near San Esteban,
Bigelow. Cobre creek, Wright. The awns are only two, but in all other respects the same as
B. bipinnata. Wright’s No. 345 has the achenia mostly two-awned.

BIDENS 816810111 (sp. nov.): annua, fere glabra; caule ramoso gracile suberecto ; foliis
trisectis, segmentis 3—5-partitis, lobis oblongis cuneatisve paucius pinnatifido-incisis ; capitulis
subsolitariis longe pedunculatis ; involucro glabriusculo ; ligulis albidis? discum haud superan-
tibus sepiusve nullis; acheniis heteromorphis, exterioribus brevibus lineari-cuneatis truncatis
papilloso-hispidulis scaberrimis, pappo nunc breviter 2—3-aristatis nunc brevissime bicorni vel
obsoleto, ceteris angustissime linearibus leevibus (semipollicaribus) breviter 2-(raoro 3)-aristatis.
Banks of the Rio Limpia ; Bigelow. Cibolo valley, Texas, Parry, etc. Mountain arroyo, Rock
creek and Puerto de Paysanos ; Bigelow, (var. with the awns mostly 3 and longer.) In foliage
and aspect this plant is somewhat intermediate between B. bipinnata and D. tenuisecta ; in
fructification it is much more like B. heterosperma, Pl. Wright, but the heads are twice or thrice
the size. The outer achenia are truncate and rough in all the specimens. Awns of the disk-
achenia 1 to 14 line long. To this belongs No. 346 of Wright's first collection referred to, B.
tenuisecta in Pl. Wright. 1, p. 109.

BIDENS HETEROSPERMA, Gray, Pl. Wright. 2, p. 90. New Mexico; known ولو‎ from plants
raised from seeds gathered by Wright.

BIDENS r&NICULIFOLIA, DỌ., var. Gray, Pl. Wright. l. c. Northern Sonora; Wright,
Thurber.

BIDENS HETEROPHYLLA, Ort.?; Gray, Pl. Wright. l.c. Between the San Pedro and Santa
Cruz, Sonora; Wright.

BIDENS CHRYSANTHEMOIDES, Micha. Ojo Caliente, Chihuahua; Thurber. San Felipe; Schott,
Bigelow. B. helianthoides, H. B. K., is probably the same species.

HETERÓSPERMUM TAGETINUM, Gray, Pl. Fendl. & Pl. Wright. l. c. Mountains of the Lim-
pia and Cobre, New Mexico, Wright, Bigelow. Too near H. pinnatum.

GUARDIOLA PLATYPHYLLA, Gray, Pl. Wright. 2, p. 91. Sonora, between Babocomori and
Santa Cruz; Thurber, Wright. Sierra de Pajarito ; Schott.

Leprosyne Dovarasrr, DC. Prodr. 5, p. 531; Torr. & Gray, Fl. 2, p. 355. Moist and

92 UNITED STATES AND MEXICAN BOUNDARY.

grassy plains between Monterey and Santa Barbara, California; Parry. Dr. Stillman has de-
tected a second species of this genus.*

TUCKERMANIA MARITIMA, Nutt. in Trans. Amer. Phil. Soc. 7, p 363; Torr. & Gray, l. c. San -

Diego, California ; common near the beach all around the bay, March; Parry. It has been
introduced into the gardens from seeds gathered by Dr. Parry, and is a very showy plant.

SANVITALIA ABERTI, Gray, Pl. Fendl. p. 87. Stony hills, Cobre, New Mexico; Bigelow,
Wright, Thurber.

SANVITALIA TRAGLEFOLIA, DC. Prodr. 5, p. 628. On the Rio Grande above Presidio ; Schott.

OLIGOGYNE Tampicana, DC. Prodr. 5, p. 529. Eagle Pass, Santa Rosa, etc., on the Rio
Grande ; Bigelow, Schott.

XIMENESIA ENCELIOIDES, Cav. In various forms, especially var. cana. From the lower Rio
Grande to Cobre and the Gila.

VERBESINA PODOCEPHALA, Gray, Pl. Wright. 2, p. 92. Sonora, near Santa Cruz, Wright.
Sierra west of Santa Cruz and Tucson; Schott. This is nearly related to V. pedunculosa,
Schultz, Bip. (Actinomeris pedunculosa, DC., Verbesina capitaneja, Nees); but that has the
leaves decurrent on the stem. i

VznBESINA VIRGINICA, Linn. var. (V. microptera & V. polycephala, DC.) Lower Rio Grande,
etc.; Schott.

ZEXMENIA TEXANA, Gray, Pl. Wright. 1, p. 112. Wirtgenia Texana, Schultz, Bip. in Seem.
Bot. Herald, p. 304. On the San Antonio, Pecos, San Pedro, and the Rio Grande; Bigelow,
Parry, ete. Dr. Schultz, apparently with reason, has separated this from Zexmenia, and has
referred it to his African genus Wirtgenia, on account of a semilunar or roundish squamula
appressed to the base of the achenium on each side, and indeed adherent to it. Here it is of
soft fleshy texture when in good condition, but it dries up at length, leaving only a vestige.
Dr. Schultz has overlooked the fact that the plant (varying greatly as to the wings of the ache-
nium and the awns of the pappus) is pretty clearly Wedelia hispida, H. B. K., which specific
name may claim to be restored. A specimen from Schultz, gathered by Schaffner, in Mexico,
near Tacubaya, is the same as a plant cultivated in the Jardin des Plantes in the year 1816.

ZEXMENIA BREVIFOLIA, Gray, Pl. Wright. 1, p. 119. Mountains, etc., on the Rio Grande at
the great cation, Eagle Pass, Rio Concho; Bigelow, Parry, Schott.

SPILANTHES NuTrALLU, Torr. & Gray, Fl. 2, p. 356, var. Western Texas, San Felipe, Pie-
dras Pintas, Zocate creek, Los Moros, etc.; Bigelow, Schott.

FLAVERIA CHLORÆFOLIA, Gray, Pl. Fendl. p. 88. Comanche and Leon Springs, southern
Texas ; Parry, Bigelow.

Fraverta CowTRAYERBA, Linn. Along the lower Rio Grande ; Bigelow, Parry.

SARTWELLIA FravERLE, Gray, Pl. Wright. 1, p. 122. Rio Cabeza, Texas; Thurber. Plain
below San Carlos, Cohahuila ; Schott.

* LEPTOSYNE STILLMANI (sp. nov.) : foliis inferioribus مس‎ omnibus trifidis seu pinnato-5-partitis, segmentis rhachi
que planis anguste linearibus; squamis involucri externi oblongis; corollis haud annulato-barbatis ; appendicibus sty!i fl.
disci haud apiculatis; acheniis glaberrimis, radii apiculatis margine fungoso subrugoso cinctis. In the valley of the Upper
Sacramento, Dr Stillman.

The single specimen collected is a span high, with shorter and coarser leaves than L. Douglasii, and smaller heads.
The scales of the exterior involucre are broader and shorter, rather fewer, and externally sparingly bearded at their base.
There is only a faint indication of the bearded ring, so manifest on the tube of the disk-corollas of L. Douglasii ; nor do the

achenia show a trace of the capitate hairs of that species. The appendages of the style, moreover, are very obtuse, and.

destitute of the abrupt and sharp tip. Still it is an undoubted congener of L. Douglasii.

BOTANY. 93

ADENOPHYLLUM WRIGHTIT, Gray, Pl. Wright. 2, p. 92. Hill sides at the Cobre, New Mexico ;
Wright, Bigelow.

LEBETINA CANCELLATA, C'ass.; DO. Prodr.5, p. 639. Prairies near Chihuahua; Thurber, Sonora,
east of the Sierra Madre ; Schott. The genus is probably to be reduced to Adenophyllum, as I
have elsewhere suggested.

DysopIA CHRYSANTHEMOIDES, Lay. San Estaban and Rock creek; Bigelow. Chihuahua;
Thurber.

DysopIA POROPHYLLOIDES, Gray, Pl. Thurber, p. 322. San Felipe, interior of California ;
Thurber.

HYMENATHERUM (AcrPHYLLEA) ACEROSUM, Gray, Pl. Wright. 1, p. 115. Hills, etc., from
San Felipe, Texas, to New Mexico and Sonora.

HYMENATHERUM Wnuronrtr, Gray, Pl. Fendl. & Pl. Wright. 1. c. Common in western Texas.

HYMENATHERUM POLYCHÆTUM, Gray, l.c. Prairies, from Presidio del Norte to Cobre, New
Mexico.

HYMENATHERUM PENTACHZTUM, DC.; Gray, l. c. Rocky or gravelly hills, from lower Texas
to Sonora.

HYMENATHERUM TENUIFOLIUM, Cass.; Gray, l. c. Gravelly plains, lower Texas to Chihuahua
and Sonora.

HYMENATHERUM GNAPHALIOPSIS, Gray, l. c. Plains, from the lower Rio Grande to New Leon.
In the distribution of Berlandier's collection this occurs under the Nos. 962, 1404, 1407, 1861,
2392. (No. 14076 in DC. Prodr. is a typographical error, for 1407.) **Called Lepiana by the
Mexicans, and used by them and the Indians as a remedy for catarrh.’’ Schott.

LOWELLIA AUREA, Gray, Pl. Fendl. l. c. On the Limpia; Wright, Bigelow, cc.

CHRYSACTINIA Mexicana, Gray, l. c. Hills of the San Pedro, Limpio, etc., Texas and New
Mexico.

NICcoLLETIA Epwarpsu, Gray, Pl. Wright. 1, p. 119, +. 8. Gravelly plains, Presidio del
Norte, Arroyo San Juan, etc.; Bigelow, Parry. Called *^ Yerba Venado’’ by the Mexicans.

TAGETES MICRANTHA, Cav.; Gray, l. c., 2, p. 93 Cobre, New Mexico; Wright, Bigelow.*

CLAPPIA, Nov. Gen.

* At Laredo, on the Lower Rio Grande, in August, 1829, Berlandier (as appears from the remains of his collections bough
from his widow) gathered a few specimens of a Composita of doubtful affinity. The specimens were not numbered, and
doubtless have not been distributed by him. It is to be sought on the lower part of the Rio Grande. The plant appears to be
the type of a new genus, which I dedicate to Dr. A. Clapp, of New Albany, Indiana, one of the most zealous botanists of our
Western States, and the author of an important work, entitled ** A Synopsis or Systematic Catalogue of the Medicinal Plants
of the United States, 1852.”

Capitulum multiflorum, heterogamum ; ligulis femineis ; fl. disci hermaphroditis, corollis tubulosis, limbo 5-fido. Involucrum
imbricatum, pauciseriale ; squamis laxis ovalibus obtusissimis lineatis. Receptaculum convexum, epaleatum, setoso fimbrilli-
ferum. Anthere ecaudate. Styli rami fl. herm. angusti, glabri, cono brevissimo obtuso superati. Achenia subangulata, 10-cos-
tata. Papous simplex, e setis rigidis seu paleis angustissimis 20—25 hispido-serrulatis, disci corollam subaequans. Herba
ramosa, glabra, foliis carnosis alternis confertis filiformibus obselete parceque glanduloso-punctatis, ramis fluridis apico nudis
monocephalis ; floribus ut videtur flavis.

CLAPPIA sUEDEFOLIA.—Herb a foot or more in height, probably from a perennial root and fleshy stems, and with fleshy
leaves much resembling those of Sueda or Chenopodina maritima. Peduncles 2 ot 3 inches long, somewhat thickened above د‎
the head half an inch in diameter. Scales of the involucre consimilar, but the outer successively shorter, distinct, marked
with several dark impressed lines apparently of a glandular nature ; the margin narrowly scarious. — Fimbrillae of the receptacle
as long as the ovaries. Ligules 10 or 12, linear, tridenticulate at the apex Lobes of the disk-corollas oblong-lanceolate.
Achenia a line and a half long, truncate at the broad summit, minutely and sparsely hispid. Pappus ferrugineous, rigid, rather

94 UNITED STATES AND MEXICAN BOUNDARY.

PoROPHYLLUM MACROCEPHALUM, DC. Prodr. 5, .م‎ 648. Sonora, on the Sonoita; Wright. Near
Santa Cruz; Thurber.

POROPHYLLUM 0856611, Gray, Pl. Wright, 1, p. 120. Dry hills, etc., southern part of New
Mexico and adjacent districts in Chihuahua; Wright, Bigelow, Captain Smith. On the Colorado
of the West ; Schott.

PoRoPHYLLUM SCOPARIUM, Gray, l. c. On the San Pedro and Puercos, El Paso, etc.; Wright,
Bigelow, Thurber.

AGASSIZIA SUAVIS, Gray & Engelm. Pl. Lindh. 2, p. 229. Gravelly hills, southern and western
Texas, on Rock creek, etc.; Parry, Bigelow.

GAILLARDIA PINNATIFIDA, Torr. Common from Rock creek, the Pecos, etc., to El Paso, Cobre,
etc., New Mexico.

GAILLARDIA PULCHELLA, Foug.; Torr. & Gray, l. c. Common from Texas to Sonora.

GAILLARDIA LANCEOLATA, Jfichx. Eastern Texas, on the coast ; Schott.

PaLaFOXIA LINEARIS, Lag.; DC. Prodr. 5, p. 124. Diluvial banks of the Colorado, Sonora ;
Schott. Fort Yuma, California ; Major Thomas. Chihuahua, east of Rio Santa Maria ; Schott.

PALAFOXIA HOOKERIANA, Torr. & Gray, Fl. 2, p. 368. Valley of the Rio Grande below San
Elizario ; Wright, Bigelow. Sand hills, Medanos ; Thurber.

卫 ALAFOXIA TEXANA, DC. Prodr. 5, p. 125. Texas from San Antonio to Eagle Pass. Los

Moros, New Mexico ; Bigelow.

PALAFOXIA CALLOSA, Torr. & Gray, l. c. From the Guadalupe river, Texas, to the Pecos.

FLORESTINA TRIPTERIS, DC. Prodr. 5, p. 655. On the Pecos, Escondido, etc.; Bigelow, Wright,
Parry.

CHENACTIS TENUIFOLIA, Nutt.; Torr. & Gray, Fl. 2, p. 310. San Diego, California ; Thurber,
(a pretty large plant, a foot high,) Schott, (a small form, only 3 or 4 inches high.)

CHZENACTIS STEVIOIDES, Hook. & Arn.; Gray, Pl. Wright. 2, p. 94. Hills, near Camp Fillmore,
New Mexico ; Bigelow, Wright, Cooke’s spring, New Mexico; Thurber.

CHJENACTIS CARPHOCLINIA (sp. nov.): annua? lanuloso-pubescens, mox glabrata, subviscosa ;
caule ramosissimo ; foliis 1l-2-pinnatipartitis, segmentis parvis linearibus (1-3 lin. longis);
capitulis subcorymbosis ; involucro viscoso ; corollis albidis? radii limbo ampliato sed regulari
discum haud superantibus, pappi paleis 4 ovato-lanceolatis acuminatis ; receptaculo paleis
nonnullis setaceis involucrum aequantibus inter flores onusto.—Gila and Colorado desert; Schott.
Fort Yuma, E. California ; Major Thomas. Plant 4 to 9 inches high, resembling slender forms
of C. stevioides. Heads corymbose-panicled, half an inch long, on short and slender peduncles,
12—25-flowered. Involucre either glandular-viscid or hirsute with viscid hairs. The remark-
able peculiarity of the species consists in a set of filiform or setaceous persistent pales on the
receptacle, 5 to 10 in number, subtending as many disk-flowers ; but in every other respect the
plant is a true Chanactis.

Hymenopaprus LUTEUS, Nutt.; Gray, Pl. Fendl. p. 97. Stony hills, Cobre, New Mexico;
Bigelow, Wright; and Mimbres; Thurber. Guadalupe cafion; Captain Smith. Cordilleras
longer than the achenium ; the bristles, or rather aristiform paleae, consimilar, except that a few are smaller, tapering upwards,
simple, but all more or less coherent at the very base, so that they fall off in a ring. "There are faint indications of some dark
glands on the foliage, which, if confirmed in better specimens, may justify a reference of the genus to the Tagetinew, in which
case it would make as perfect a transition between that subtribe and the Heleniew as another genus of the same region
(Sartwellia) does between the latter and the Flaveriex.

BOTANY. 95

behind San Diego; Parry; (a somewhat glabrate form.) Nuttall’s original specimens are
depauperate and not fully developed ; they gave rise to the unfortunate phrase ** heads small,"
in the Flora of North America. But, in fact, they are perhaps the largest of the genus. The
conspicuous pappus at length projects beyond the villosity of the achenium.

HyYMENOPAPPUS FLAVESCENS, Gray, Pl. Fendl. l. c. Common from the Pecos to El Paso, etc.

HYMENOPAPPUS coRYMBOSUS, Nutt.; Torr. & Gray, Fl. 2, p. 370, and var.? NUTTALLI。 On the
San Pedro and Rio Grande, etc., Texas ; Bigelow, Schott.

ACARPHHA ARTEMISIAEFOLIA, Harv. & Gray, in Pl. Fendl. p. 98, in not. (Tan. XXXII.)
Cordilleras east of San Diego, California, June; Parry. "This rare plant was known only from
a specimen in Coulter's Californian collection, No. 313, which presented no mature fruit. Dr.
Parry's specimen is also a single one, (more suo,) but with well-formed fruit. The only points
to beadded to the original account of the plant are that the viscid-glandular leaves are scarcely,
if at all, hoary ; the corollas appear as if they were flesh-color rather than pale yellow, and
the marginal ones are hardly ampliate ; the mature achenia, all fertile and similar, are slightly
incurved, compressed, and not manifestly striate. The compression of the achenia tends to
confirm the genus as distinct from Cheenactis, although the numerous analogous cases in this
subtribe warn us to beware of genera resting solely on the absence of pappus. Vide, Plantae
Wrightiane, 1, p. 123. : i

Banta (ERIOPHYLLUM) ARTEMISIÆFOLIA, Less.; DC. Prodr. b, p. 567. Monterey, etc., Cali-
fornia ; Parry. A shrubby plant, 2 or 3 feet high.

BAHIA (ERIOPAYLLUM) TRIFIDA, Nutt. in Trans. Amer. Phil. Soc. 7, p. 374; Torr. d Gray, l. c.
Dry sandy hills, San Diego, California ; Parry.

BAHIA (ERIOPHYLLUM) CONFERTIFLORA, DO. l. c.; Torr. & Gray, l. c. Dry places near Santa
Barbara, California ; Parry, ete. From San Diego to the Colorado ; Schott.

BAHIA RUBELLA (sp. nov.): annua, pumila, floccoso-lanuginosa, ramosa; pedunculis sub-
corymbosis monocephalis ; foliis alternis spathulatis apice sæpius tridentatis ; involucro cam-
panulato 8-phyllo lanuginoso, squamis erectis discum adæquantibus ; ligulis 8 roseis ovalibus
3—4-dentatis ; appendicibus styli fl. disci cono acutissimo superatis; receptaculo conico; acheniis
hirsutulis; pappi paleis 8 enerviis obtusissimis.—Interior of California, in a dry valley, near
San Felipe, (between San Diego and the Rio Colorado;) June; Parry. Plant 4 inches high; the
leaves half on inch long. Peduncles from half an inch to an inch in length. Involucre 3 lines
long. Disk-flowers 14-20, yellow. Ligules oval, deeply notched or 3-4-toothed at the
apex. Pappus about one-quarter the length of the prismatic achenium ; the paleae of equal
length, four of them obovate-oblong, the alternate ones narrower and more spatulate, entire.
With the style of true Bahia, but the appendages tipped with a longer and sharper cone, this
little plant has the involucre of the section Eriophyllum, and a still more elevated (even
conical) receptacle ; and so tends to combine the two. In the rays, which are said to be pale
purple and white, it accords with the obscure B. trolliifolia, of which it is probably a true
congener.

BAHIA ABSINTHIFOLIA Benth., var. DEALBATA, Gray, Pl. Wright. 1, p. 121. Sandy or gravelly
soil, from the San Felipe to the Mimbres, and south to Chihuahua, etc.

BAHIA BITERNATA, Gray, Pl. Wright. 2, p. 95. Ojo de Gavilan, etc., New Mexico; Wright,
T'hurber, Bigelow. Llanos del Babuquibari, Sonora ; Schott.

96 UNITED STATES AND MEXICAN BOUNDARY.

BARIA pepata, Gray, Pl. Wright, 1, p. 123. On the Pecos, Limpia, etc.; Thurber, Wright.

Banta (ACHYROPAPPUS) BIGELOVII (sp. nov.): annua, striguloso-puberula ; caulibus gracilibus
diffuse ramosis; foliis oppositis tripartitis, segmentis integerrimis vel inferiorum 2-3-fidis
lineari-filiformibus ; pedunculis filiformibus monocephalis ; involucri laxi squamis 8-9 oblongo-
ovatis obtuse acuminatis glanduloso-pubescentibus ; ligulis totidem oblongis; acheniis basi -
hirsutulis ; pappi paleis 8 obovatis obtusissimis enerviis tubo corolle disci viscoso-hispido fere
dimidio brevioribus. Valley of the Limpio, W. Texas, July, 1852; Bigelow. Stems
branched from the base a foot or more in height. Leaves short-petioled ; their divisions 6 to 12
lines long. Peduncles solitary, 3 or 4 inches long. Involucre scarcely 3 lines in length, a
little shorter than the disk. Flowers yellow; those of the disk as many as 30; their corolla a
line and a half long ; the slender and glandular-hispid. tube abruptly dilated into the cyathiform
5-lobed limb. Style as in B. ambrosioides. Achenia linear-clavate, obtusely tetragonal, nearly
aline and a half long. This is nearly related to the Schkuhria? Neo-Mexicana, Gray, Pl.
F'endl. p. 96 ; which, however, is rayless and has disk-corollas scarcely longer than the pappus.
While on the one hand it is plainly a congener of Achyropappus schkuhrioides, Link & Otto.,
(which in specimens from De Candolle and others, contrary to the generic character, taken from A.
anthemoides, has a pappus very much shorter than the corolla,) on the other it is equally insepa-
rable from true Bahia (B. ambrosioides, B. absinthifolia, etc.) I am unable to say exactly how
the various species are to be divided between Bahia and Schkuhria; but apparently all the
many flowered ones must be excluded from the latter.

AMBLYOPAPPUS PUSILLUS, Hook. & Arn. in Hook. Jour. Bot. 3, p. 321, (vide Gray, Pl. Wright,
1, p. 123, in adn. & Bot. Whippl. Rep. p. 106.) Infantea Chilensis, Remy, in Gay, Fl. Chil.
Aromia tenuifolia, Nutt. in Trans. Amer. Phil. Soc. 1, p. 395. Monterey, California, near the
seaside, forming dense clumps ; Parry.

VILLANOVA CHRYSANTHEMOIDES, Gray, Pl. Wright, 2, p. 96. Cobre, New Mexico; Bigelow,
Wright.

SonkuHRIA HOPKIRKIA, Gray, l. c. Sonora; Wright. Seeds only were collected, from which
plants were raised for two seasons.

SoHKUHRIA Wrieuti, Gray, l. c. Sandy soil, between Babocomori and Santa Cruz, Sonora ;
Wright, Thurber.

AMBLYOLEPIS SETIGERA, DO., Gray, l. c. Plains of Texas, from the Leona to the Pecos and
Eagle Pass ; Bigelow, Wright, Schott.

RIDDELLIA TAGETINA, Nuit; Torr. in Emory, Rep. t. 5. Texas to Sonora; common on the
frontier,

RIDDELLIA ARACHNOIDEA, Gray, Pl. Fendl. p. 94, & Pl. Wright, 1, p. 121. Common on the
Rio Grande, etc., from the Nueces (where it was also gathered by Berlandier, No 1041, 2471)
to the Mimbres, etc.

Hymenoturix Wisiizent, Gray, Pl. Fendl.l.c. Mule Springs, etc., New Mexico, and Sonora ;
Bigelow, Wright.

Hymenorurix? Wrientn, Gray, Pl. Wright, 2, p. 97. Sonora; Wright, Schott, Bigelow,
Thurber, mostly in the mountains. New Mexico, at the Cobre, Organ mountains, etc.; Bigelow.

AcTINOLEPIS MULTICAULIS, DO. Prodr. 5, p. 655; Torr. & Gray, Fl. 2, p. 376. (Tas, XXXIII.)
Dana’s Ranch, below Sau Luis Obispo, California ; Parry.

BunRIELIA LANOSA, Gray, in Bot. Whipp. Hep. p. 101. Sonora, between Tucson and the Gila ;
Parry. Pappus of 4 long and 4 short pale in the disk-flowers, but of five each in the ray.

BOTANY. 01

BuRRIELIA GRACILIS, DC. Prodr. 5, p. 664. California, near Monterey, etc.; May ; so abundant
as to give a yellow appearance to the hills ; Parry. Mostly rather large forms. In one specimen
a slight disposition to have lobes to the leaves appears.

BURRIELIA curysostoma, Torr. & Gray. Fl. 2, p. 379. Hill sides, common from Monterey to
San Diego, California. The specimens occur mixed with the preceding, from the larger forms
of which they are externally undistinguishable. Unless the more obtuse receptacle affords a
character, it will probably come to be regarded as only an epappose state of B. gracilis.

BURRIELIA PLATYCARPHA (sp. nov.) : erccta, spithamea, subramosa, laxe pubescens ; foliis sæ-
pissime trifidis segmentisque filiformi-linearibus; pedunculis sursum incras:atis ; involucri
multiflori squamis ovatis trinerviis ligulisque oblongo-linearibus seepius 7; corolla imberbi ;
pappo conformi e paleis 7-8 oblongo-ovatis aristatis achenio squilongis; receptaculo acute
conico.— Valley of the upper Sacramento ; Dr. Srillman. This is a genuine Durrielia, having the
pales of the pappus all alike and awned. The scales of the involucre (fully 4 lines long) and
the ligules are considerably larger than those of the largest states of D. gracilis and D. (Bieria)
chrysostoma, although fewer. It is related on the one hand to B. gracilis, from which it is a
once distinguished by its lobed leaves, stouter peduncles, more upright habit, fewer rays and
involucral scales, the latter much broader as well as larger, 3-nerved and more pointed, and by
the equally larger and broader as well as more numerous paleae of the pappus و‎ on the other to
B. (Dichzta) Fremontii, which has much smaller heads, a dimorphous pappus of much smaller
pales, ۴

BuRRIELIA (PTILOMERIS) ANTHEMOIDES. Ptilomeris anthemoides, Nutt. in Trans. Amer. Phil.
Soc. T, p. 382. Hymenoxys (Oxypappus) calva, Torr. € Gray, Fl. 2, p. 381. Grassy places,
Monterey, California; Parry.

LASTHENIA (HOLOGYMNE) GLABRATA, Lindl. Bot. Reg. t. 1780. Monterey, California ; Parry.

1100170774 MAJOR, DC. Prodr. 6, p. T4. Argillaceous hills, San Fernando, beyond Los
Angelos, California (a glabrate form) ; Parry.

TRICHOPTILIUM, Nov. Gen.

Capitulum homogamum multiflorum ; floribus hermaphroditis tubulosis. Involucrum circiter
10-phyllum, biseriale; squamis sequalibus membranaceis, interioribus glandula apiculatis.
Receptaculum nudum, scrobiculatum. Corolla cylindrica ; tubo proprio brevi angusto, dentibus
5 patentibus ovatis, Antherz ecaudate. Styli rami compressi, glaberrimi, apice tantum capi-
tellato-truncato brevissime hirtelli. Achenia immatura oblonga, basi angustata, hirsutissima.
Pappus corolla brevior, e paleis 5 hyalinis enerviis oblongo-lanceolatis in setas plurimas rigidas
profunde fissis. Herba nana, hyemo-annua vel biennis, dichotoma, humifusa, floccoso-lanata,
subglandulosa ; foliis alternis cuneato-oblongis argute inciso-dentatis lobatisve, dentibus cuspi-
dato-acuminatis ; pedunculis terminalibus et alaribus filiformibus monocephalis ; corollis ochro-
leucis?

TRICHOPTILIUM INCISUM, Gray, JMss.; Torr. in Pacif. R. Road Expl. 6, p. 361, t. 5. Psathy-
rotes incisa, Gray, Pl. Thurber, p. 322. On the desert of the Colorado, in the southeastern

۶ It may be remarked that Mr. Bentham refers No. 1791 of Hartweg's Californian collection to Burrielia (Dichzta) Fre-
montii; but all the specimens in my set are entirely destitute of pappus, which could not have been the case in those which
Mr. Bentham examined. Since the two plants apparently agree in all other particulars, it is most likely that my specimens
belong to an epappose state of the species; just as all Nuttall's species of Pti'omeris are probably forms of one. At any
rate, it is now certain that Ptilomeris and Dichzeta, as well as Baeria, must be reduced to sections of Burrielia.

13 k

58 UNITED STATES AND MEXICAN BOUNDARY.

part of California, near the Colorado; Thurber. Near Fort Yuma; Lieut. Du Barry. Only
a single specimen of this interesting plant (but in a more advanced state than Mr. Thurber's)
was gathered by Lieut. Du Barry, and communicated to Dr. Torrey. The latter pointed out
the oversight I had committed in respect to the pappus, and which led me wrongly to refer the
plant to Psathyrotes, whereas it technically belongs to the Heleniez, and adds another genus
to that subtribe. The five thin pale: of the pappus are beautifully dissected into stiff capillary
bristles, of which the central one is somewhat the longest, and the rest on each side successively
shorter. Involuere loosely very woolly externally ; the thin and lax scales oblong and oblong-
lanceolate, nerveless, and about as long as: he disk.

HULSEA, Torr. & Gray, (Nov. Gen.)

Capitulum multiflorum, radiatum ; floribus radii ligulatis foemineis, disci tubulosis. Involu-
erum hemisphaericum ; squamis subtriseriatis membranaceis laxis, extimis paullo brevioribus.
Receptaculum planum, epaleaceum, alveolato-dentatum, dentibus brevibus corneis. Ligulæ
20-30, lineares. Corolle fl. herm. tubo gracili viscoso-glanduloso, fauce cylindraceee, limbo
5-dentato, dentibus triangulari-ovatis fere glabris. Anthera ecaudate. Styli rami obtusi,
longitrorsum puberuli, exappendiculati. Achenia conformia, linearia, subtetragono-compressa,
deorsum attenuata, villosa preesertim ad margines. Pappus (villis achenii vix longior) e paleis
4 tenuibus hyalinis enerviis latis obtusissimis erosis vel fimbriatis. Herbs perennes, viscoso-
pubescentes, macrocephale, alternifoliw ; caule florifero sub-aphyllo ; floribus flavis.

H. Caurrornica (Torr. € Gray): elata; caule vel pedunculo 3-7-cephalo ; involucri squamis
linearibus apice attenuatis; floribus aureis; ligulis sepe filamentis sterilibus instructis و‎ pappi
paleis cuneato-rotundis apice truncato eroso-denticulatis.— Mountains east of San Diego, Cali-
fornia, in bushy places, June ; Parry. A portion of the inflorescence was alone gathered of this
interesting plant, apparently a branch of a tall herb, with the alternate leaves reduced to ovate-
lanceolate and sessile bracts, of about half an inch in length. The paniculate or subcorymbose
heads are about as large as those of Arnica montana. Ligules half an inch long. Disk-flowers
perhaps 100. Achenia 3 lines long, blackish, minutely striate on each face, also villous (but
much more so on the margins) with long and thick hairs. Pappus of four nearly equal, thin,
and hyaline paleæ, of less than a line in length, much shorter than the tube of the corolla.
Foliage, etc., unknown. The genus is dedicated to G. W. Hulse, M. D., of Louisiana, late a
surgeon of the United States army, and a zealous cultivator of botany, to whom we are indebted
for many interesting plants of Florida, California, etc. Since its establishment upon a single
and incomplete specimen, a second species has been detected by Dr. Newberry (H. nana, Gray in
Pacific R. R. Report, 6, p. 76, t. 13,) confirming the genus. The broad and flat receptacle and
the elongated compressed achenia are remarkable in the Helenieæ, subdiv, Euhelenieæ, to
which the genus is to be referred.

HELENIUM AUTUMNALE, Linn. Texas ; west to the San Pedro; Bigelow.

HELENIUM PUBERULUM, DC. Prodr. 5, p. 667; Torr. & Gray, Fl. 2, p. 385. California ; not
uncommon. Rio Fronteras, Sonora ; Thurber.

HELENIUM TeNUIFoLIUM, Nutt.; Torr. & Gray, l. c. Sonora; Capt. Smith.

HELENIUM MICROCEPHALUM, DO, l. c. Sandy moist places, Presidio del Norte, Van 8

BOTANY. 99

Wells, etc., Bigelow. This species includes De Candolle's H. elegans and his H. heterophyllum,
at least in part, viz: No. 2113 of Berlandier's collection, which is from Reynosa. De Candolle
also cites Berlandier's No. 107 and No. 190, and the habitat Tampico. I have no specimens
from that station. From these the character, ** pappi paleis breviter aristatis," may have been
drawn. But in those from Reynosa the palex are very obtuse and pointless, just as in H. mi-
crocephalum.

AcTINELLA RICHARDSONII, Nutt. ; Gray, Pl. Fendl., p. 101. New Mexico and western Texas,
abounding on stony hills.

ACTINELLA ODORATA, Gray, l. c., & Pl. Wright. l. c. From the lower Rio Grande to Sonora,
the Gila, etc.; Parry, Bigelow, Schott. ۴ Limonillo"' of the Sonorians.

ACTINELLA CHRYSANTUEMOIDES, H. B. K.; Gray, Pl. Wright. 1, p. 122, adn. Soccoso, Sonora ;
Bigelow.

ACTINELLA SCAPOSA, Nutt.; Gray, l. c., & in Bot. Whippl. Rep. p. 108. Gravelly or rocky
hills, throughout western Texas and New Mexico; in diverse forms.

ACTINELLA ARGENTEA, Gray, Pl. Fendl. l.c. On the Mimbres; Bigelow, Dr. Henry.

AcTINELLA Brerrovir, Gray, Pl. Wright. 2, p. 96, adn. New Mexico, on Ben More, and near
the Cobre, etc.; Bigelow,

ACTINELLA LINEARIFOLIA, Torr. & Gray, #1. 2, p. 382. Western Texas to El Paso and Eagle
Pass, etc.; in various forms.

Tripax BICOLOR, Gray, Pl. Fendi. p. 104. Bachimba, Chihuahua; Thurber. Plant taller
than the specimens of Wislizenus, a foot or two high; the upper leaves alternate and on pretty
long petioles; head larger than in T. procumbens; rays rose purple; pappus not tinged with
purple.

GALINSOGA PARVIFLORA, Cav. ; var. CARACASANA, and var. SEMICALVA ; Gray, Pl. Wright, 2, p.
98. Cobre, New Mexico; Wright.

ACHYRACHENA MOLLIS, Schauer; DC. Prodr. ,ا‎ p.292. Monterey, California; in grassy places ;
Parry, etc

Layra (CALLICHROA) PLATYGLOSSA, Gray, Pl. Fendl.,p. 103. California, San Pasqual; Thurber.
Monterey, etc.; Parry. Colorado desert ; Schott.

Layra (CALLIACHYRIS) FREMONTI, Gray, Pl. Fendi. l. c. Upper Sacramento, California; Dr.
Stillman.

Lavra (MADAROGLOSSA) HETEROTRICHA, Hook. & Arn. Bot. Beech.; Gray, l. c. Dana's Ranch,
below San Luis Obispo, California; in dry gravelly soil ; Parry.

LAYIA (MADAROGLOSSA) HIERACIOIDES, Hook. & Arn. l. c. San Juan Battista, near Monterey;
California; Parry. Remarkable for its very short rays.

Layra (MADAROGLOSSA) CARNOSA, Nutt. in Torr. & Gray, Fl. 2, p. 394. Sea beach, Monterey,
California; Parry. The very small rays appear to be white.

LAYIA (MADAROGLOSSA) Nro-MxxicaNA, Gray, Pl. Wright. 2, p. 98. New Mexico; Bigelow.

Tucson, Chihuahua; Parry. The pappus is not always present in the ray-flowers.

OXYURA CHRYSANTHEMOIDES, DC. Prodr. 5, p. 693. Monterey, California; May; on grassy
hill sides.

HEMIZONIA FASCICULATA, Torr. & Gray, Fl. 2, p. 397. Hartmannia fasciculata, DC. Prodr.

5, p. 693. Dry plains, San Diego, California ; Parry, Schott, Thurber. Covers large tracts, and
exhales a strong balsamic odor.

ailt rp N O OT‏ لح

٧ل‏ سچ ۴

100 UNITED STATES AND MEXICAN BOUNDARY.

HEMIZONIA RAMOSISSIMA, Benth. Bot. Voy. Sulyh. p.30. Santa Barbara and San Diego, Cali-
fornia; Schott, Fitch. This appears to be a common Californian plant, of somewhat variable
mode of growth. Mr. Fitch's specimen is the same as Frémont’s, marked R and 8 in his coll.
of 1846 ; as No. 361 of Coulter’s Californian collection ; and as the H. fasciculata of Nuttall, in
herb. Hook; (of Gambell’s collection, a stricter and smoother form) ; I believe it is also Bentham’s
H. ramosissima. The sessile or stipitate glands are sometimes abundant, but not rarely wanting
or nearly so. I may remark that to H. angustifolia, DC., (which has no pappus at all, at least
in Douglas’s specimens,) belongs the H. multicaulis, Hook. & Arn. Bot. Beech. Voy. Suppl., p.
355 ; the No. 305 of Coulter’s Californian collection ; H. decumbens, Nutt. Pl. Gamb. p. 175 ; and
apparently the same as specimens gathered near Mozterey by Mr. Barclay, although their disk-
flowers show a minute pappus. But No. 1797 of Hartweg's collection, referred by Mr. Bentham
to H. angustifolia, is exactly H. corymbosa (Hartmannia corymbosa, DO.) H. macrocephala,
Nuit. Pl. Gamb. l. c., appears to be the same species. H. congesta, DC., is to be distinguished

from Madaria chiefly by the shape of the fertile achenia; as noted in the Botany of Whipple's .

Report.*

CALYCADENIA (OSMADENIA) TENELLA, Torr. & Gray, Fl. 2, p. 402. Osmadenia tenella, Nutt.
Dry places near San Diego, California; Parry, etc. ; June. Subjoined are the characters of
two new species, from Frémont's Californian ام‎ of 1846.1 They belong ۵ ۵
Osmadenia, but have the glands of Calycadenia on the floral and young fascicled leaves, and

*Besides H. Fitchii, recently published in Whipple’s Report, there is another extremely well marked species of Hemizonia in

Colonel Frémont s collection, the characters of which are subjoined :

HEMIZONIA viRGATA (sp.nov.): subglabra ; caulibus e radice annua ramisve simplicibus gracilibus ; foliis linearibus, inferi-
oribus inciso-dentatis basi lorge qued; د0‎ integerrimis, summis minimis apice glanduloso-trunentis ; capitulis ob-
longis in ax llis solitariis sul vel plerumque ramulos breves foliosos desinentibus racemum virgatum efficientibus ; invol-
ucri squamis circiter 5 ovatis membranaceis cum paleis extimis receptaculi glandulis stipitatis? mollibus dorso muricatis ; loda
ut videtur luteis, radii 5 ligula cuneato-rotunda apice triloba, disci 10 sterilibus, singulis palea oblonga glanduloso-mucronata
amplexatis epapposis ; acheniis radii fertilibus obovatis lævibus basi substipitatis apice intus breviter rostratis.— California, prob-
ably on the Sacramento; Col. Frémont.—Stems a foot or more high. Lower cauline leaves two inches long, the upper ones an
inch or less in length and barely a line wide; those fascicled in the axils or crowded on the floral branchlets 1-2 lines wide,
spreading ; their truncate apex glandular. Heads 3lineslong. Scales of the involucre ovate, cymbiform, balf inc'osing the
fertile achenia, glabrous, beset externally with long and soft glandular-tipped but truncate spreading processes. Ligules 2 lines
long and the same width, on a glandular tube of a Jine in length. Disk-flowers slightly glandular, their infertile ovaries glab-
rous, destitute of pappus. Receptacle chaffy thoughout ; the pales distinct, membranaceous.

f CALYCADENIA 0976 (sp. nov.): caule humili superne parce paniculato-ramoso et hirsuto ; foliis anguste linearibus sca-

EE Yl 1 کے ا‎ (i h > d h i4 1 4 ih cap tulis
solitariis ما‎ libus se subsessillibus ; ligulis 5-7 tripartitis, segmentis tubulo brevissimo glabra 2-3-plo longi-
oribus ; disco circiter 20-floro ; paleis receptaculi 12 et ultra oblongis obtusis vix glutinosis connatis; lobis corollarum disci ovatis ;
acheniis radii levibus utrinque obtusis, disci hirsutulis pappo 10-paleaceo (paleis alternis subulato-productis) aequilongis.— Cali-
fornia, (the particular station not recorded ;) Col. Fremont. Stems a span high, from an annual root, erect, rather slender ; the
branches are not glandular nor glutinous. Cauline leaves an inch or more in length, the lower opposite. Heads few, larger,
and with many more flowers than in C. tenella ; also with much ampler ligules, (though the tubular portion is very much
shorter,) their obovate or oblong segments 3 lines long. Nor are the tinged and perfectly smooth and even ray achenia at all
apiculate at either end. The pappus of the (apparently fertile) disk-achenia resembles that of C. tenella, its longer and subulate
scales being only haif the length ofthe corolla, and not longer than the achenium itself.

CALYCADENIA PAUCIFLORA (sp. nov. ) : caule paniculato-ramoso glabello ; ramis floriferis diffusis filiformibus fl is capitula
solitaria — " mom imn gerentibus ; foliis anguste linearibus scabris gene monitis: floralibus » cum iis in
axillis fasi gla iformi superatis ; radio uni-ligulato, lobis ligule t p g s ; disco

BOTANY. 101

one of them has short and broad lobes to the corolla of the disk. The glands are manifestly
not of generic importance ; and as in habit there is no longer a marked distinction, it will be
evident, on comparing the characters of C. Fremontii with those of the two new 8
above described, that it is becoming increasingly difficult to preserve Calycadenia as a genus.

LAGoPHYLLA 21011010114, Benth. Pl. Hartw. p. 317. On the Sacramento, California; Rev. Mr:
Fitch. Branchlets only ; rays evidently yellow. The genus is distinguished from Hemizonia by
the obcompressed fertile achenia, completely enclosed by the involucral scales, and by the cunei-
form, deeply trifid rays. The habit also is peculiar. Yet, perhaps, it may be found to pass
into Hemizonia ; though it is more distinct than Calycadenia.

LAGOPHYLLA FILIPES, Gray in Bot. Whippl. Rep. p. 109, adn. Hemizonia filipes, Hook. & ۰
Bot. Beech. Voy. Suppl. p. 356. On the Sacramento, California ; Rev. Mr. Fitch. The specimens
are merely in flower. I suspect that in the achenia, no less than in other characters, as well as
in habit, the plant will accord with Lagophylla, and thus raise that genus to three known
species. The receptacle is not chaffy in the centre. The small rays are three-parted nearly to
the base.

MADIA SATIVA, Molina. In springy places, California, near Monterey ; April.

HarRPZCARPUs EXIGUUS: tenellus, diffusus ; pedunculis filiformibus; paleis receptaculi 3 in
cupulam florem hermaphroditum includentem coalitis ; acheniis haud rostratris.—Sclerocarpus
exiguus, Smith in Rees Cycl.; Hook. & Arn. Bot. Beech, Voy. p. 355, adn. California, (probably
Mariposa county,) Rev. Mr. Fitch. Plant 2 to 4 inches high, including the fruit-bearing peduncles
(which are an inch or more long); the branches diffuse. Root annual. Leaves from a quarter
to half an inch long. Heads little over a line long, with 4 to 7 ray-flowers, and a single
hermaphrodite one, which is inclosed in a cup formed of only three pales. Besides this character,
and the diminutive size and diffuse habit of this plant, it differs from H. madarioides, Nutt., of
Oregon, in the less falcate ray-achenia, of barely a line in length (only half the size of those of
the other species), the apex of which is obtusely apiculate, but not at all rostrate. H. madarioides
has, when young, a simple and strict stem, leaves of one or two inches in length, and, according
to Nuttall, sometimes attains the height of 2 feet. |

CorNoGYNE CARNOSA, Less.; DC. Prodr. 6, p. 42. Salt places and seashore near San Diego
California; Parry. The genus should stand next to Jaumea, in the Heleniew, from which it
differs principally in the want of the pappus.

BAILEYA PAUCIRADIATA, Harv. & Gray, in Pl. Fendi. p. 105. Diluvial banks of the Colorado,
Sonora; February, 1855 ; Schott. These are the only specimens of this plant I have seen,
excepting the original ones in Coulter's collection. "They possess the lower cauline and radical
leaves, which are pinnatifid, with few and unequal linear lobes, some of them 1-2-toothed or
lobed. The root is that of a biennial or winter annual. :

BAILEYA PLENIRADIATA, Harv. & Gray, l. c., & Pl. Wright. l. c. Very common from the Rio
Grande to the Colorado, Sonora, etc.

hi : ۷ P د‎ o4

tripaleato trifloro, corolle lobi: i obtuso, iis disci hirsutulis pappo 10-paleaceo (paleis alternis subulato-
productis) longioribus.—California ; Col. Frémont. This species presents nearly the habit of C. tenella, except that the pro-
longed branches are simple or sparingly forked, and bear lateral nearly sessile heads ; and they are scarcely, if at all, glandular
or viscid. The heads are still smaller, or at least narrower, and, as far as examined, have unformly only one ray and three
disk flowers ; the latter surrounded by a cup formed of the thin coalescent palew. Pappus nearly as in C. Fremontii. Ray-
achenium rather acute at the base, but the summit not at all apiculate. ^

102 UNITED STATES AND MEXICAN BOUNDARY.

BAILEYA MULTIRADIATA, Harv. & Gray, l. c.; Pl. Wright. l.c. Sandy places, with the same
range as the foregoing, which may probably pass into it.

MATRICARIA DISCOIDEA, DC. Prodr. 6, p.37; Torr. & Gray, Fl. 2, p. 413. A common weed
in the streets of Monterey and elsewhere in California, appearing as if introduced; Parry.

AcHILLEA MILLEFOLIUM, Linn. Cobre, New Mexico; Bigelow, Wright.

VARILLA TEXANA, Gray, Pl. Wright. 1, p. 123. Plains and grassy places near Eagle Pass on
the Rio Grande; Bigelow, Parry, Thurber,

ARTEMISIA CALIFORNICA, Less, in Linnæa, 6, p. 523. San Diego and San Luis Rey, California,
where it abounds exceedingly ; Parry, etc.

ARTEMISIA DRACUNCULOIDES, Pursh; Gray, Pl. Wright. l. » Hills at the Cobre, New Mexico ;
Wright, Bigelow. On the Pecos, Texas; Thurber.

ARTEMISIA CANADENSIS, Michx.; Torr. & Gray, Fl. 2, p. 417. With the last.

ARTEMISIA FILIFOLIA, Torr.; Torr. & Gray, l.c.; Torr. in Marcy Rep.t. 12. Common in bottom
land, from below El Paso to the Cobre, etc.

AmrEMISIA LupoviciANA, Nutt.; Torr. & Gray, l.c. Very common, and in various forms ;
including A. Douglasiana and A. Mexicana.

GNAPHALIUM CALIFORNICUM, DC. Prodr. 6, p. 224. San Diego, California; Thurber.

GNAPHALIUM LUTEO-ALBUM, Linn. Sandy low places, from the Nueces and Rio Grande, Texas
to Sonora.

GNAPHALIUM SPRENGELII, Hook. & Arn.; Gray, Pl. Wright. 1, p. 124, & 2, p. 99. Hills, ete.,
. from the Limpio, Cobre, etc., to Sonora and California.

GNAPHALIUM LEUCOCEPHALUM, Gray, Pl.” Wright. 2, p. 99. Bed of mountain torrents, near
Santa Cruz, Sonora; Wright, Thurber.

` GNAPHALIUM MICROCEPRALUM, Nutt.? Gray, Pl. Wright. l.c. Cobre, New Mexico; Wright.

GNAPHALIUM PALUSTRE, Nutt.; Torr. & Gray, 2, p. 427. California; Rev. Mr. Fitch, etc.
On the Colorado of the West; Schott.

ANTENNARIA DIOICA, Garin. Cobre, New Mexico; Bigelow.

Flago CanrroRNICA, Nutt.; Torr. & Gray, l.c. San Isabel, California; Thurber. On the
Sacramento; Rev. Mr. Fitch.

CROCIDIUM MULTICAULE, Hook, Fl. Bor.- Amer. 1, t. 118. On the upper Sacramento, California;
Dr. Stillman.

ARNICA DISCOIDEA, Benth. Pl. Hartw. p. 319. Monterey, California, in woods and ravines ;
May; Parry. A form with even the upper leaves all opposite or nearly so.

BARTLETTIA scaposa, Gray, Pl. Thurber, p. 323. Ona prairie near Corralitas, Chihuahua ;
August; T'hurber.

PsarHYROTES ANNUA, Gray, Pl. Wright. 2, p. 100, & Pl. Thurber, p. 323. Bulbostylis
(Psathyrotes) annua, Nutt. Pl. Gambel. Tetradymia (Polydymia) ramosissima, Torr. in Emory,
` Rep. p. 145. Colorado desert, California; Schott. Big-horn mountain, on the Gila; Thurber.
“Flowers bright yellow. Foliage aromatic." 2

PsATHYROTES scaposa, Gray, Pi. Wright. 2 p. 100, t£. 13. Gravelly hills near El Paso, and
Santa Maria, Chihuahua; Wright, Bigelow. Kioway crossing of the Rio Grande, near the Chisos
mountains; Parry.

HAPLÖESTHES GREGGI, Gray, Pl. Fendi. p. 109. Along the Rio Grande below El Paso; Parry,

BOTANY. 103

Bigelow. The accessory nerves are wanting in the disk-corollas of Dr. Bigelow’s specimens,
and the rays are narrower and entire, not three-toothed as in Gregg’s.

SENECIO MULTILOBATUS, Torr. & Gray, in Pl. Fendl. p. 109. Monterey, California, May; Parry.

Senecto Coronopus, Nutt.; Torr. & Gray, Fl. 2, p. 437. San Luis Rey, February, on dry
hill sides; Parry.

Senecio Tamprcanus, DC. Prodr. 6, p. 427. On the Limpio, 8mith's Run, Rock Creek, White
Rock Mountains, near the Rio Grande, etc.; Bigelow, Wright, Parry.

SENECIO LoBATUS, Pers. Low banks or beds of rivers, from Laredo to Frontera and the Santa
Maria in Chihuahua.

Senecio RrppgLLU, Torr. & Gray, Fl. 2, p. 444. On the Lower Rio Grande ; Schott.

Senecio LoNGILOBUS, Benth. Pl. Hartw. p. 18. Gravelly hills, Arroyas, etc., on the Rio
Grande above Presidio, to Chihuahua and Sonora. In very various forms.

SENECIO 1117013198, Nutt.; Torr. & Gray, l. c. On the Leona and Nueces, Texas.

SENECIO AUREUS, Linn., var. BOREALIS, Torr. € Gray, l. c. Organ Mountains; Wright, etc.
_ ۹02۲8010 canus, Hook., var. PYGMÆA, foliis Ming nati. Cobre, on mountains and hill sides ;
: awe Bigelow.

SENECIO FAsTIGIATCS, Nutt.; Gray, Pl. Wright. 2, p. 99. Cobre, Mimbres, etc., New Mexico ;
Wright, Bigelow, etc.

Sexgoro PARRYI (sp. nov.): herbaceus, viscoso-pubescens; caule striato; ramis oligocephalis;
folis argute ineequaliter dentatis, caulinis spathulatis inferne longe attenuatis basi dilatata
auriculato-amplexantibus, ramealibus summis lanceolatis; bracteis setaceo-subulatis ; capitulis
breviter pedunculatis ; involucri (semipollicari) paucibracteolati squamis acuminatis; ligulis
12-15 ; acheniis sericeo-cinereis —In live-oak groves, 150 miles above the mouth of the Pecos,
on the Mexican side of the Rio Grande, November; Parry. Root notseen. Stem, etc., slightly
floccose when young. Cauline leaves 2 inches or more in length. Ligules oblong, yellow, half
an inch long.

CacaLrA pECOMPOSITA, Gray, Pl. Wright. 2, p. 99. Mountains east of Santa Cruz, Sonora;
Wright.

CENTAUREA AMERICANA, Nutt. Sandy soil etc. from the Lower Rio Grande to Chihuahua. C.
Mexicana, DC., is the same thing.

CIRSIUM Wricutn, Gray, Pl. Wright. 2, p. 101. Around springs, San Bernardino, New
Mexico; Wright. Comanche springs ; Bigelow.

Cirsium VIRGINIANUM, Miche. var. Low grounds, Escondido springs; Wright. Rio Grande;
Schott, etc.

Crrstum UNDULATUM, Nutt ; Gray, Pl. Wright. l. c. W. Texas to the Limpio, and to Sonora,
etc. In various forms, probably including C. ochrocentrum, Gray, Pl. Fendl. p. 110, & Pl.,
Wright, 2, p. 101.

Crrstum Neo-Mexicanum, Gray, Pl. Wright. 2, p. 101. Organ mountains and Cobre, New
Mexico; Wright, Bigelow. Cooke’s spring ; Thurber.

CIRSIUM GRAHAMUL, Gray, Pl. Wright. 2, p. 102. In swamps, between the Sonoita and San
Pedro, Sonora; Wright, Thurber.

Crestum COULTERI, Harv. & Gray, Pl. Fendl. p. 110? Monterey, California; Parry.

MOQUINIA HYPOLEUCA, DC. Prodr. 7, p. 22. Mountain pass, near Parras, Thurber. This is
No. 1391 and 2358 of Berlandier's collection, who records its vernacular name as ۰

FRUTESCENS, P. Browne ; DC. Prodr. 7, p. 68; var. angustifolia, et foliis sericeo-

104 UNITED STATES AND MEXICAN BOUNDARY.

pubescentibus, argute denticulatis ; involucri superne sensim attenuatis acutis.—Among rocks,
Bachimba, Chihuahua; Thurber. Ringgold's Barrack, on the Rio Grande, Texas ; Schott. Var.
ANGUSIIFOLIA ; foliis lato vel angusto-lanceolatis margine plerumque revolutis subsericeis seepius
integerrimis. T. angustifolia, Gray, Pl. Wright. 1, p. 128, £ 2, p. 102. Ravines, Santa Cruz,
Sonora; El Paso and Flounce mountains, New Mexico; Wright, Parry, Bigelow. Schultz, Bip. .
(in Botany of the Herald, p. 314) refers these all to 'T. frutescens, which may well be the case if
that species includes forms with thickish and silky pubescent leaves as well as tapering acute
scales of the involucre; but, on the other hand these narrow-leaved varieties quite as clearly
run into T. angustifolia, DC. (Berlandier's No. 1284 and 1353,) which Schultz keeps separate.
The latter belong to an arid region, and certainly look widely different from Berlandier’s No.
2100 and 2230, which I had supposed to answer to the type of T. frutescens.

PEREZIA THURBERI, Gray, Pl. Thurber, p. 324. Rocky hills, near Santa Cruz, Sonora; Thurber.
Dr. Schultz has recently referred Perezia to Trixis, perhaps with reason, as it is difficult to
draw a limit between them.

PEREZIA WRIGHTI, Gray, Pl. Wright. 1, p. 127. On the Rio Grande, Rio Frio, Limpio, etc.;
Wright, Bigelow, Parry, Schott, Thurber. :

PEREZIA NANA, Gray, Pl. Fendl. p. 111, & Pl. Wright. l. c. Gavelly or rocky hills, from the `
Rio Grande, Texas, to the San Pedro, Sonora. The name is not always appropriate, as the
plant is sometimes a foot high.

PEREZIA RUNCINATA, Gray, l. e. From the lower Rio Grande to Chihuahua. The fascicled
roots become tuberous-thickened below, like those of a Peony or Dahlia.* i

LERIA NUTANS, DO. Western and southern Texas, to the Rio Grande.

CALAIS LINEARIFOLIA, DO. Prodr. 7, p. 85; Gray, Pl. Wright. 2, p. 102. Near San Diego,
California; Parry. New Mexico on the Rio Grande, Organ mountains, and Lake Gusman ;

Wright, Bigelow. Guadalupe cañon, Sonora; Capt. Smith.

CALAIS Parry, (Gray, in Bot. Whippl. Rep. p. 112, adn.): scaposa, fere glabra; foliis
lineari-lanceolatis seepius pinnatifido-laciniatis ; involucri squamis triseriatis ovatis oblongisve
subobtusis, exterioribus gradatim brevioribus ; ovariis levibus; pappi paleis oblongis apice
bifidis arista e sinu exserente barbellato-scabra dimidio brevioribus.—Near San Diego, California;
March ; Parry. The specimens are too young to give the complete characters. The plant
belongs to the section Calocalais, and in the pappus most resembles C. macrocheta, Gray, Pl.
Fendl. ; but the scales of the involucre are much broader and blunt, and the awn of the pappus
is نت‎ and more denticulate ; the leaves also are shorter and mostly obtuse. In C. macro-
chzta, the scales of the involucre are lanceolate and gradually very taper-pointed ; and the
slender awn is scarcely scabrous.

CALAIS Doveras, DC. Prodr. 7, p. 85. Near San Diego, California, March; Parry. Very

*In Berlandier’s reliquie I find still another Perezia viz

A THYRSOIDEA (Sp. nov.): glanduleso-scabrida ; ramis floridis strictis; foliis confertis subimbricatis oblongis ovatisve
سرو‎ angustatis pungenti-acutis basi sessili vix ant ne vix amplexicaulibus rigidis spinuloso-serrulatis reticulatis subtus

glanduloso-puberulis ; ramulis 3-5 cephalis brevibus folia parva integerrima bracteiformia gerentibus in
thyrsum elongatum spiciforme congestis; involucro cylindrico 10-12-floro; squamis lineari-lanceolatis mere subulato-
acuminatis appressis, intimis pappo rigidulo copioso (haud clavellato) equilongis.—Guanaxuato, Mexico, No. 132 Base of
the stem not seen, nor the leaves much below those which bear flowering branchlets in their axils, Lowest suos seen 24
inches long, gradually decreasing to an inch, and shorter than the flowering branchlets they subtend ; these altogether form
a dense and elongated thyrsus of a foot or so in length. Heads 9 or 10 lines long Scales of the involucre glandular, imbri.
cated in several series, the exterior passing into bractlets. Pepe whitish, pluriserial This can hardly be the Perezia
morte et Lallav. and Lex , or any other described specie

E
NE mute

BOTANY. 105

small and imperfect specimens. Exterior achenia hirsute, as stated by Nuttall, not the inner,
as described by Hooker and Arnott.

CALAIS PLATYCARPHA (Gray, in Bot., Whippl. Hep. p. 113 & 114,): scaposa ; foliis pinnati-
partitis (vel integris?) glabris ; involucro calyculato ; acheniis immaturis brevibus truncatis,
paucis extimis villosis ; pappi paleis orbiculatis seu latissime ovalibus integerrimis apice subito
brevi-aristatis.— On clay-hills, San Luis Rey, California; Parry. The specimen, although too
young, affords characters which well distinguish this from the cognate C. Douglasii. The leaves
ure cut into numerous short and crowded lobes, and are as long as the young scapes. Involucre
only 4 lines long, consisting of 8 or 10 oblong and rather obtuse scales of equal length, and of
a few short calyculate scales. The young achenia are oblong, rather clavate, and largest at the
truncate apex ; it is not likely that they become rostrate or even tapering at the apex. Some of
the exterior ones are hairy, more so than in C. Douglasii; the others are glabrous, except a
minute papillose pubescence on the ribs. Pales of the pappus 5, nearly 3 lines long, fully 2
lines wide, entire, the midrib abruptly exserted into a scabrous awn of only one-third the length
of the scale itself.

HEMIPTILIUM, Nov. Gen.

Capitula et habitus Stephanomerim. Achenia angulata, utrinque truncata, costata, costis
5 一 10 tuberculatis. Pappus 5-15-paleatus; paleis lineari-lanceolatis vel setiformibus inferne
nudis, apicem versus breviter plumosis.—Herbz graciles, annuz vel biennes, glabrz, pani-
culato-ramosissime ; ramis fere aphyllis; floribus roseis? Species 2, nempe:

HEMPITILIUM Scnorrit (sp. nov.): capitulis parvis 5-floris; acheniis 5-6-angulatis pluri-
costatis, costis tuberculoso-scabris; pappi paleis 5-6 rigidis lineari-lanceolatis obtusiusculis
achenio haud longioribus infra medium nudis marginibus leviter scariosis.—Camp Miller, valley
of the Gila; May, 1855; Schott. Only branchlets or branches were collected ; these bear
merely small subulate bracts in place of leaves, and racemose-panicled small heads. Involucre
only 3 lines long. Branches of the style clavate, glabrous. Color of the flowers not recorded.
Achenia 14 line long: pappus of rigid pales, persistent or nearly so; the plumose hairs borne
at the upper part not much longer than the breadth of the palea. The plant resembles Ste-
phanomeria paniculata in aspect.

HzwrPrILIUM BIGELOVI (sp. nov.): caule paniculato-ramosissimo e radice annua seu bienni ;
folis radicalibus linearibus subpinnatifidis, rameis vix ullis; capitulis 6—9-floris; acheniis
5-costatis, costis validis rugoso-tuberculatis; pappo achenio duplo longiore e setis fragilibus
12-15 basi dilatatis rariter denticulatis vel setulosis medio gracillimis nudis versus apicem
barbellato-plumosis.—Frontera, New Mexico; Bigelow. Plant with the aspect of Stephano-
meria minor, (with which it has probably been confounded,) but perhaps more upright. Invo-
lucre 4 or 5 lines long ; the ligules exserted to about the same length, apparently white or rose-
color. Achenia with thick corky ribs, or strong angles. Pappus white, fragile, at the summit
appearing like that of a Stephanomeria, although rather less plumose, but naked below, and
paleaceous at the base.

STEPHANOMERIA MINOR, JVutt.; Gray, in W hippl. Rep. p. 114. S. minor & 8. runcinata, Nuit. ;

Gray, Pl. Wright. etc. Gravelly and rocky soil, from the Pecos, western Texas, to the Colorado .

of the West.
"STEPHANOMERIA THURBERI, Gray, Pl. Thurber, p. 325. Sierra de los Animos, Sonora; Thurber.
On the Santa Cruz river; Captain Smith. Near the Cobre and Mimbres, New Mexico; Bigelow,
: 14 k

106. UNITED STATES AND MEXICAN BOUNDARY.

Dr. Henry. Heads large, 17-20-flowered, with pink and fragrant flowers. Bristles of the
pappus 25-30.

RAFINESQUIA Neo-Mextcana, Gray, Pl. Wright. 2, p. 2, & p. 103. Gravelly hills near El
Paso, etc., New Mexico; Bigelow, Wright, Parry. | Cook's Spring ; Bigelow.

RarINESQUIA CALIFoRNICA, Nutt. in Trans. Amer. Phil. Soc. T, p. 429. (Tas. XXXIV.) Oak
groves, Monterey, California; Parry. Found also by Frémont on the Mohave river and in other
parts of California. Some of the mature achenia (usually the exterior ones) have a mottled ap-
pearance, as represented in one of the figures.

CALYCOSERIS PARRYI (sp. nov.): involucro polyphyllo subimbricato ; floribus flavis; acheniis
longe rostratis, costis levibus acute trinervatis.—Mountains east of Monterey, California ;
June; Parry. Only a single specimen was gathered, and that consists merely of the upper
part of the plant, with reduced foliage. It is most interesting, however, as adding a second
species to the genus Calycoseris, being a strict congener of the New Mexican C. Wrightii. It
is distinguished by its yellow flowers, rather larger heads, more numerous scales to the invo-
lucre, of which there are likewise a few external and shorter scales, effecting a transition into
the smaller calyculate ones, which are more pointed and mostly squarrose-recurved ; the
scales, as well as the peduncles and branchlets, are more conspicuously beset with similar setose-
pedicellate glands, which here are blackish. More important characters are afforded by the
achenia ; these are more slender and rather longer; the strong ribs are not so thick, and are
smooth or even, (while in C. Wrightii they are tuberculate-roughened, a character by no means
sufficiently represented in the plate,) each with a sharp and salient dorsal nerve or keel, and
with a less conspicuous lateral one on each side ; and the slender beak is as long as the body of
the achenium. l

CALYCOSERIS WRIGHTII, Gray, Pl. Wright. 2, p. 104, t. 14. Low hills and alluvial banks of
the Rio Grande, and elsewhere in New Mexico; gathered by all the collectors. Guadalupe
cañon, Sonora; Capt. Smith.

PINAROPAPPUS ROSEUS, Less. Not rare in western and southern Texas, in Sonora, etc.

MALACOTHRIX Catirornica, DC. Prodr. 1, p. 192. In rather dry grassy places, Monterey,
California ; Parry.

Matacorurix? Counter, Harv. & Gray, Pl. Fendl. p. 113, adn. On the Sacramento? Cali-
fornia; Rev. Mr, Fitch, One or two small bunches merely, throwing no more light upon this
plant.

MALACOTHRIX OBTUSA, Benth. Pl. Hartw. p. 321. Monterey, California; Parry.

MALICOTHRIX TENUIFOLIA, Nutt. in Trans. Amer. Phil. Soc. n. ser. 1, p. 435, ex char. Valley
of the Gila, at Camp Miller ; May, 1855 ; Schott. The same as Coulter's No 246, and appa-
rently Nuttall's plant. But it is herbaceous, except perhaps the very base, and the nascent
shoots and young involucral scales are canescent with a stellate tomentum, which is soon decid-
uous. From three to five of the bristles of the pappus are more persistent and naked.

MALACOTHRIX FENDLERI, Gray, Pl. Wright. 2, p. 104. Along the Rio Grande, at El Paso,
and elsewhere ; Bigelow, Wright, etc. Guadalupe cañon, Sonora; Capt. E. K. Smith.

了 PYRROPAPPUS CAROLINIANUS, DO, Prodr. T, p. 44. From the lower Rio Grande, Texas, to the
Santa Cruz river, Sonora ; Schott, Capt. Smith.

MACRORHYNCHUS HETEROPHYLLUS, Nutt.; Gray in Whippl. Hep. p. 115. M. Californicus, Torr.
& Gray. (Cryptopleura Californica, Nutt.) M. Chilensis, Hook. ۵ Arn. Monterey and else-
where in California ; Parry, etc.

BOTANY。 107

Macnonuywonus Lrssrwar, Hook. & Arn. Bot. Beech. p. 361. Sea-beach at Monterey, 7
fornia; April; Parry. The specimen is in too early a state for proper investigation, but it has
a thick root, and very obtuse or rounded exterior scales of the involucre. Perhaps M. grandi-
florus, Nutt. (which is known only in fruit) is a fully developed state of it.

PRENANTHES? EXIGUA, Gray, Pl. Wright. 2, p. 105. Hills near El Paso, etc.; Wright,
Bigelow.

LYGODESMIA APHYLLA, DO., var. Texana, Torr. & Gray, Fl. 2, p. 485. Common on plains
from San Antonio, Texas, nearly to the Rio Grande, New Mexico. The stems bear long leaves
towards the base.

MurGEDINUM PULCHELLUM, Nutt.; Torr. & Gray, l.c. Plains, from the Limpio to the Rio
Grande, and Cobre, New Mexico.

SONCHUS OLERACEUS, Linn. Alluvial borders of the Rio Grande; Schott, Bigelow.

SoNcHUS ASPER, Vill. Along the Gila; Schott. Cobre, New Mexico ; Bigelow.

CREPIS AMBIGUA, Gray, Pl. Fendl. p. 114, & Pl. Wright. 2, p. 106. Organ mountains, New
Mexico ; Wright.

HIERACIUM LoNGIPILUM, Torr. ; Torr. & Gray, Fl. 2, p. 477, White-Rock mountain, head of
Rock creek, western Texas; Bigelow; July.

LOBELIACE.

LOBELIA PECTINATA, Engelm. in Wisliz. Rep. p.108. L. fenestralis, Cav.? Sonora, Septem-
ber; Thurber, Schott. (No. 420 and 1430, Wright.) The plant of Cavanilles is said to be
perennial, while ours is certainly annual.

LoBELIA BERLANDIERI, Alph. DO. Prodr. 7, p. 367. On the lower Rio Grande, Chihuahua,
Neuvo Leon, etc. (No. 419 and 1429, Wright. No. 3177, Berlandier, Matamoras.) Annual,
smooth. Stem erect, or sometimes apparently prostrate, more or less branching, mostly naked
above. Lowest leaves broadly ovate or obovate, tapering at the base into a petiole; upper ones
sessile, ovate and oblong-lanceolate, irregularly and acutely toothed. Flowers in lax racemes
terminating the branches ; the pedicels 2-4 lines long and twice the length of the linear bracts.
Calyx about two thirds as long as the tube of the corolla, the segments subulate and denticulate.
Corolla blue, 3-4 lines long; upper segments oblong-lanceolate ; lower ones much narrower;
the tube about as long as the stamina. Wright’s 419 and 1429, differ in being more leafy above,
and in the shorter pedicels. We suspect they are all forms of L. Cliffortiana.

LOBELIA PUBERULA, Miche. Fl. 2, p. 152. Near Victoria, Texas. This is the same as No. 42
of Drummond’s 3d Texan collection, which Alph. DO, refers to L. amcena.

LOBELIA LAXIFLORA, H. B. K. 3, p. 311. L. fissa, Roem. & Schultes. Mabibi, Sonora;
June; Thurber. About a foot and a half high. Leaves 3-5 inches long, lanceolate, acute at
each end ; the lower ones remotely and obscurely denticulate; the upper minutely and sharply
serrulate. Raceme few-flowered. Pedicels an inch or more in length. Flowers nearly as
large as in L. cardinalis. Segments of the calyx triangular-lanceolate, scarcely longer than
the hemispherical tube. Corolla dull red; the tube three times as long as the calyx. Stamineal
column considerably exserted.,

LOBELIA CARDINALIS, L. Sp. p. 1320. L. Texensis, Raf. Leon Spring, Devil's river, and
Head of the Nueces, western Texas; also on the Mimbres, Neuvo Mexico; Bigelow. The
flowers are sometimes smaller than in the northern plant; in which state it seems to be hardly
distinct from L. Texensis, Raf., except in the narrower flowers, and usually shorter sepals.

108 UNITED STATES AND MEXICAN BOUNDARY。

NEMACLADUS RAMOSISSIMUS, Nutt. in Trans. Amer. Phil. Soc. n. ser. 8. p. 254. (Tab. XLV.)
Hill sides, Frontera, on the upper Rio Grande; also in Chihuahua, and near the Pimos
villages, on the Gila; Parry. (No. 1428 and 1431, Wright.) We have specimens from
California, collected by Dr. Andrews and Rev. Mr. Fitch. Mr. Nuttall considers this remarkable
plant as the type of a distinct natural order which ought to be placed between Lobeliacec and
Goodenoviacez ; but we think it should certainly be referred to the former, notwithstanding the
non-cohering anthers. The stigma is destitute of an indusium, and even of a hairy fringe.

CAMPANULACEA.

Dysmicopon PERFOLIATUM, Nutt. l.c. Campanula perfoliata, Zinn. Copper Mines and Rio
Mimbres, New Mexico; April-June; Bigelow. Cañon of Guadalupe, Sonora; Capt. E. K.
Smith. ۱

Dysmicopon ovatum, Nutt. l. c. On the lower Rio Grande; April; Schott. Bexar, Texas;
Berlandier, No. 368.

CAMPYLOCERA LEPTOCARPA, Nutt., l. c. First crossing of the Rio San Pedro, Texas; May-
June; Bigelow.

CAMPANULA ROTUNDIFOLIA, Linn. Sp. p. 239. Rocks on the Rio Grande, 150 miles above the
mouth of the Pecos; November; Parry. The radical leaves are ovate and acute, but there can
be little doubt of the plant being a form of C. rotundifolia.

ERICACEAE.

ARCTOSTAPHYLOS PUNGENS, H. D. K. Nov. Gen. & Sp. 3, p. 278; Torr. in Emory, Rep. t. 1,
& in Bot. Whipp. Rep., p. 116. Dry pine woods, near Monterey, in the same State ; Parry.
Mountain sides and dry ravines, San Luis, etc., Sonora ; Capt. E. K. Smith; Schott, Thurber.
Mexico ; Berlandier, No. 1318. Sometimes procumbent. Flowers rose-color.

ARCTOSTAPHYLOS TOMENTOSA, Dougl.; DO. Prodr. T, p. 585; Torr. l.c. San Luis Obispo, Cal-
ifornia ; April; Parry. Also in Napa county; Thurber. It is called Mansinita, (little apple,)
by the Mexicans of California, The red berries are used by the Spanish natives to make a
cooling sub-acid drink.

ARCTOSTAPHYLOS POLIFOLIA, H. B. K. Nov. Gen., & Sp. 3, p. 277. Lower California,
near the boundary line. A shrub, about six feet high, with dark purple berries, which
become black in drying.

ARBUTUS Menzrestt, Pursh, Fl. 1, p. 282. Mountains at the head of Rock creek; Bigelow. —
(No. 1433, Wright.) Only 12-15 feet high, and with smaller leaves than in the Oregon and
California plant. In California, where it is common, it is a most beautiful tree, often 40 feet or
more in height, and is known by the name of Madronia. The wood is used for making the
heavy wooden stirrups of the Mexicans. -

GAULTHERIA SHALLON, Pursh, Fl. 1, p. 284,1. 12. Pine woods near Monterey and in other

` parts of California; Parry. The aromatic acid berries are rather agreeable to the taste.

VACCINIUM ovatum, Pursh, Fl. 1, p. 290; Lindl. Bot. Reg. t. 1354. Pine woods near Monterey,
California; Parry. A neat evergreen shrub, 2-3 feet high. The berries are edible, but small.

STYRACEA.

STYRAX CALIFORNICUM, Torr. Pl. Frém. in Smithson. Contrib. vol. 6. Valley of the Sacra-
mento.

BOTANY. 109

EBENACE.

Driospyros TEXANA, Scheele in Linnea. 22, p. 145. Hill sides, Fort Inge to Escondido
creek, and near Eagle Pass, western Texas ; Schott, Parry. Flowers in March. Fruit ripe in
August, about an inch in diameter.

SAPOTACEZ,

BUMELIA RECLINATA, Vent. Ch. Pl. t. 22, fide Alph. DO. Prodr. 8, p. 190: var. fructibus
majoribus ; floribus fasciculis numerosioribus. On the Rio Grande, from Laredo to the mouth
of the river; Schott. Hills and plains near Live Oak creek; Bigelow. No. 1434, Wright.
Matamoras ; Berlandier, Nos. 1513, 3012 and 3048. A tree 25-30 feet high. It seems to
differ from the plant of the Southern Atlantic States chiefly in the larger and more fleshy fruit.
This is oblong, nearly three-fourths of an inch in length, sweet and edible. Testa smooth and
shining, mottled with brown. Cotyledons united, thick and fleshy. Albumen wholly wanting.

THEOPHRASTACE.,

JACQUINIA PUNGENS, Gray, Pl. Thurb. in Mem. Amer. Acad. Art. & Sc. n. ser. 5, p. 325.
Hills between Rayon and Ures, Sonora; Thurber. Perhaps a variety of T. macrocarpa, Cav.

۳1,۸ ۸۲۰۲۸ 6] ۰

PLANTAGO MAJOR, Linn. Sp., p. 163. Banks of the Acequia, near El Paso; May ; Bigelow.
(No. 1441, Wright.) Probably introduced among agricultural seeds by the early Mexican
settlers.

PLANTAGO PATAGONICA, var. GNAPHALIOIDES, Gray in Torr. Bot. Whipp. Rep. p. 117, & Man.
Bot. ed. 2, p. 269. P. gnaphalioides, Nutt. Gen. 1, p. 100. Western Texas, New Mexico,
Sonora and California. Var. spicis oblongis vel capitatis. Dry hills, Sonora; Schott. San
Diego, California; Parry. (No. 1438, Wright.)

PLANTAGO VIRGINICA, Linn. Sp., p. 163. Sandy banks of the Rio Grande, Eagle Pass, etc.
Also in Sonora ; Schott.

PLUMBAGINACEA.

` STATICE LIMONIUM, Linn. Sp., p. 394. Saline soils, western Texas, and on the Rio Grande near
its mouth ; Bigelow, Schott. Salt places near San Diego, California; Parry.

PRIMULACEA.

ANDROSACE OCCIDENTALIS, Pursh, Fl. 1, p. 137; Nutt. Gen. 1, p. 118. Mule Spring and Cook's
Spring, western Texas; April; Bigelow. Tubac, Sonora; March; Parry.

SAMOLUS VALERANDI, Linn., var. AMERICANUS, Gray Man. ed. 2, p. 274. S. floribundus, A. B.
K. Nov. Gen. & Sp. 2, ۰ 224. Low places, borders of the Limpio; July, Bigelow. Banks
of streams, Sonora, May ; Capt. E. K. Smith. California; Parry.

SAMOLUS EBRACTEATUS, H. B. K., l. c. p. 223, t. 129. Common along the Rio Grande
from El Paso to the Gulf, and on the seacoast of Texas.

DopzcATHEON MEADIA, Linn. Sp. p. 201; Torr. in Bot. Whippl. Rep., p. 118. Grassy places
near Monterey and other places in California; March to April; Parry. This includes D. inte-
grifolium, Michx., and even D. frigidum, Cham.

110 UNITED STATES AND MEXICAN BOUNDARY.

LENTIBULACEA.

UrnrcuLARIA GIBBA, Linn. Sp. p. 26. In the San Pedro river, also in Elm creek, and near
the head waters of the Nueces, western Texas, October ; Bigelow.

BIGNONIACE.

Tecoma STANS, Juss. Gen. p. 139; DC. Prodr. 9, p. 225. Hills along the Rio Grande, from
El Paso downward and westward to Sonora; May to July. (No. 1446, Wright.)

CHILOPSIS LINEARIS, DO. l c. p. 227. C. glutinosa, Engelm. in Wilz. North. Mex., p. 94.
Hills and ravines along the Rio Grande, Santa Cruz river, etc., Sonora ; Schott and Capt. E. K.
Smith. San Felipe, California; Parry (No. 1447, Wright). A shrub usually 4-6 feet high,
but Capt. Smith saw it in Sonora 25 feet high. Ican distinguish but one species in the collections.

Suborder SESAME.

MARTYNIA VIOLACEA, Engelm. in Wisliz. l. c. p. 101. Low places and plains, near the Limpio,
etc.; July ; Bigelow. Near Laredo; Schott. Corallitas, etc., Chihuahua ; Thurber, Parry.

MARTYNIA ARENARIA, Engelm. l. c. p. 100. Sandy places, from El Paso and near the Limpio
(Bigelow) to the Presidio del Norte; July; Parry. Sonora; September; Thurber. ‘‘ Plant
viscid ; corolla reddish-yellow externally, yellow inside; the throat mottled and veined with
brown." Thurber.

OROBANCHACEJE.

APHYLLON UNIFLORUM, Torr. & Gr. in Gray's Man. A, ed. 2, p. 281. Orobanche uniflora,
Linn. California; Rev. A. Fitch.

APHYLLON FASCICULATUM, Torr. & Gr. lU. e. Orobanche fasciculata, Nutt. Gen. 2, p. 59 ; Hook.
Fl. Bor.-Am, 2, p. 93, t. 170. Tributaries of the Rio Yaqui, Sonora; June; Thurber. Moun-
tains east of San Diego ; June; Parry. Our numerous specimens show that the divisions of the
calyx are variable in length and shape, so that the species is chiefly distinguished by its scaly
stem and shorter peduncles. ۱

PHBLIPEA LupoviclANA, Walp.; Reuter in DC. Prodr. 11, p. 11. Orobanche Ludoviciana,
Nutt. On the beach at Brazos Santiago, Texas ; May ; Schott. Pachitiga, Chihuahua ; August ;
Thurber.

PuHELIPHA comosa. Anoplanthus comosus, Walp. Rep. 3, p. 480, & Reut. l.c. Orobanche
comosa, Hook. Fl. Bor.-Am, 2, p. 92, t. 169. California, probably on the lower Sacramento ;
Shelton. The specimens were parasitic on the roots of a species of Grindelia ; apparently G.
arguta. The calyx is deeply 5-parted, with nearly equal lanceolate-subulate segments. Brac-
teoles very remote from the flower, alternate on the pedicel, resembling the segments of the
calyx. Lobes of the corolla all acute and entire ; those of the upper lip ovate-lanceolate ; of the
lower linear-lanceolate.

SCROPHULARIACE (by A. Gray).

MAURANDIA ANTIRRHINIFLORA, Willd. Hort. Berol. t. 83. Common in the valley of the Rio
Grande, and west to California.

BOTANY。 111

MAURANDIA (EPIXIPHIUM) WISLIZENI (sp. nov. Zngelm.): scandens, glabra; foliis hastatis ;
pedicellis axillaribus petiolo seepiusque calyce brevioribus; corolla ‘‘ pallide cerula,’’ fauce
pervia nuda; calyce fructifero demum subcoriaceo valde aucto et reticulato basi 5-angulato seu
5-carinato, lobis triangulari-lanceolatis sensim acuminatis ; capsula ovoidea coriacea calyce in-
clusa stylo ensiformi rigido persistente cornuta, loculis juxta apicem rima transversali dehiscen-
tibus ; seminibus compressis ovalibus alatis disco paleaceo-rugosis.— Along the Rio Grande below
Doña Ana, etc. This was first received in the collection of Dr. Wislizenus, and afterwards in that
of Wright, and most others from the northern borders of Mexico. Dr. Engelmann proposed it
long ago, in MSS., as a new genus, under the name of Hpixiphium maurandioides, which is here,
with his permission, changed to Wislizeni, since I incline to view the plant as the type of a mere
subgenus of Maurandia, freely admitting, however, that its characters are as well marked as
those of Lophospermum. ‘lhe remarkable fructiferous calyx is 8 or 9 lines broad at the base,
strongly 5-angled and keeled, and an inch or an inch and a half long ; the sword-shaped per-
sistent style nearly equals the calyx-lobes, and the dehiscence is by a clean transverse chink on
each side, which inclines to extend downwards so as to become valvular. Seeds blackish, dis-
tinctly winged, 13 to 2 lines long.

ANTIRRHINUM NUTTALLIANUM, Benth. in DC. Prodr. 10, p. 592. San Diego, California و‎
May-June ; Parry. On the Great Colorado; Schott. Leaves of the branches mostly roundish-
cordate. Segments of the calyx ovate, a little unequal. Persistent base of the style oblique.

ANTIRRHINUM CoULTERIANUM, Benth. l. c. Near San Pasqual, California, May; Thurber.
Mountains east of San Diego, June ; Parry. Root annual. Stem 3 or 4 feet high, supporting
itself on other plants by its twining slender branches. Raceme nearly a foot long: persistent
base of the style oblique. This species is near A. majus.

LINARIA CANADENSIS, Dum.; Benth. in DC. Prodr. 10, p. 278. Near the Copper Mines, and on
Rock creek, New Mexico ; Bigelow. Monterey, California; Parry. Upper Sacramento ; Stillman.

ScROPHULARIA COCCINEA (sp. nov.): glabra; foliis deltoideo-ovatis vel subcordatis acutis grosse
dentatis, dentibus pauci-serratis ; thyrso oblongo aphyllo ; cymis plurifloris floribusque minutim
glandulosis ; calycis segmentis ovatis margine haud scariosis ; corolla late coccinea, lobis 2 pos-
ticis tubo ovato-oblongo gibboso dimidio breviore, anticis brevissimis ; anthera sterili obovato.—
At the base of a rocky ledge near the summit of a mountain, Santa Rita del Cobre, New Mexico ; :
Wright (1410), Bigelow. What appears to be the same species in fruit was collected by Dr.
Bigelow near the Organ mountains. A truly handsome species. Specimens raised from seeds
in the autumn of 1852 (but which were unfortunately soon lost) displayed flowers as bright red
as those of Stachys coccinea.

COLLINSIA BICOLOR, Benth. in Hort. Trans. n. ser. 1, p. 48, & in DC. Prodr. 10, p. 318.
Oak woods near Santa Barbara, and San Diego, California; March ; Parry.

PENTSTEMON AMBIGUUS, Torr. in Ann. Lyc. N. Y. p. 228, & in Marcy’s Hep. p. 293, t. 16. Grav-
elly hill sides near Tascate; July ; and Burro mountains; September; also near San Diego;
Bigelow. Sand hills, Chihuahua; Thurber (742.) A common species in or near the southern
Rocky mountains. In the figure cited above, the sterile filament is represented as bearing a
small anther, to which no allusion is made in the letter-press. It is not found in the present
specimens, but exists in all those collected by Captain Marcy. In this as in several species of
the genus, either all four fertile stamens or the two posterior are often free from the corolla
nearly or even quite to the base.

112 UNITED STATES AND MEXICAN BOUNDARY.

PENTSTEMON LINARIOIDES (sp. nov.): suffruticosus, pube minutissima glauco-cinereus, mul-
ticaulis ; caulibus floridis simplicibus foliosis strictis (6-15-pollicaribus); foliis angustissime
linearibus seu lineari-acerosis imisve spatulato-linearibus mucronatis integerrimis ; racemo vel
paniculo virgato laxifloro ; pedunculis alternis brevibus 1—5-floris ; calycis segmentis ovatis vel
ovato-lanceolatis acuminatis infernescarioso-marginatis; corolla pallide cæruleo-purpurea superne
ampliata breviter bilabiata, palato pl. m. barbato, lobis rotundatis subconformibus patentibus ;
antheris glabris subexsertis; filamento sterili longitudinaliter barbato.—Organ mountains ;
Parry. Copper Mines and Los Animos, New Mexico; Wright, (1472,) Thurber, (331, 1115,)
Bigelow. Sierra San Luis, Chihuahua and Sonora; Schott. A well marked species, of the group
to which the preceding belongs; the numerous flowering stems form a woody base; the foliage
and inflorescence resembling one of the strict and narrow-leaved Linarias. Corolla 7 to 9 lines
long.

PENTSTEMON JAMESII (Benth. in DC. Prodr. 10, p. 325): pumilus, strictus, puberulus ; foliis
nunc glabratis omnibus sessilibus plerisque parce denticulatis, caulinis floralibusque linearibus,
imis et radicalibus sublanceolatis deorsum attenuatis; racemo 8—12-floro spicato ; pedunculis
alternis 1—2-floris seu pedicellis brevissimis cum sepalis e basi lata lanceolatis sensim acuminatis
viscido-pubentibus ; corolla (pallide purpurea) tubo angusto, fauce subito valde ampliata cam-
panulata, lobis conformibus rotundatis; antheris glabris; filamento sterili longitudinaliter
barbato.—Low places near the Limpio, July; Bigelow. This species may be described as inter-
mediate between P. Cobaa and P. pumilus, Nutt. The specimens are only 5 or 6 inches high,
herbaceous, erect, leafy ; the leaves from 11 to 21 inches long, and 11 to 24 lines wide, thickish;
the upper floral linear-subulate and not exceeding the calyx; the latter is half an inch long ;
the corolla, which has just the shape of that of P. Cobeea, is over an inch long. It is somewhat
viscid externally and slightly bearded within the lower lip. Sterile stamen like that of P.
Cobæa, but the beard denser.

PENTSTEMON STENOPHYLLUS (sp. nov.): glaberrimus ; caule gracili 4-8 pai ; foliis linearibus
elongatis integerrimis, floralibus lineari-setaceis; panicula laxiflora; pedunculis oppositis
patentibus gracilibus 2—5-floris pedicellis 2-4-plo longioribus; calyce parce glanduloso-pubero,
segmentis ovatis margine scariosis ciliato-denticulatis acuminatis, acumine patente; corolla
infundibuliformi-ampliata (fere sesquipollicari ezerulea?) vix bilabiata, lobis brevibus conformibus
rotundatis; antheris rima hirto-ciliolatis; filamento sterili glaberrimo summo apice dilatato.—
Hills between Babacomori and Santa Cruz, Sonora; Wright, (1477.) Radical leaves not seen;
cauline all alike, but gradually smaller and narrower towards the summit of the virgate stem,
the larger 4 inches long and 11 or 2 lines wide, perfectly entire. Peduncles 14 or 2 inches long.
Pedicels 3 to 6 lines long. Calyx 2 or 3 lines long. This species belongs to the section Cepo-
cosmus, and to the same group with P. imberbis. If, as seems likely, No. 186 of the collection
of Wislizenus, from Cosiquiriachi, belongs here, the corolla is blue.

PENTSTEMON DASYPHYLLUS (sp. nov.): velutino-puberulus; caulibus e basi suffructicosa strictis;
foliis lineari-lanceolatis imisve oblanceolatis integerrimis obtusis junioribus presertim molliter
velutinis, floralibus gradatim minoribus cum racemo simplici laxo paucifloro glanduloso-puber-
ulentis; pedicellis alternis; sepalis ovato-oblongis obtusis; corolla (**purpureo-czrulea"' fere
sesquipollicari) ampliato-infundibuliformi vix bilabiata, lobis rotundatis subconformibus ; an-
theris rima ciliolato-hirtellis ; filamento sterili glaberrimo apice vix dilatato.—Stony hills of the
Pecos, and Cook's Spring, New Mexico; Wright, (1478). Valley of the Santa Cruz river on moun-
tain sides, and in the valley of the San Pedro, Sonora; Capt. E. K. Smith, Bigelow & Thurber. Also

BOTANY. 113

collected by Dr. Woodhouse in Sitgreave’s expedition. Stems 1 to 2 feet high, simple, virgate.
Leaves 1 to 3 inches long, 11 to 3 lines wide, thickish. Pedicels almost always simple and
ebracteolate, 3-8 lines long. Calyx 2-3 lines long; corolla. much as in the last; sterile
filament shorter, and gradually very slightly dilated upwards. This is evidently most related
to P. lanceolatus, Benth.; but is more downy, with simpler inflorescence ; and the much larger
and more dilated corolla is of a different color; being red in P. lanceolatus, according to Dr.
Gregg’s notes on a specimen gathered by him at Buena Vista.

PENTSTEMON VIRGATUS, (sp. nov.): glaber, seu minutissima glanduloso-puberulus; caule herbaceo
simplici stricto; foliis lineari-lanceolatis acutis integerrimis, radicalibus spatulato-lanceolatis
obtusis, floralibus gradatim in bracteas subulatas breves diminutis ; panicula virgata elongata
multiflora subsecunda ; pedunculis plerumque oppositis 1—4-floris pedicellisque sæpissime
floribus haud longioribus ; sepalis ovato-rotundis margine subscariosis; corolla (roseo-lilacina
venis intus purpureis) dilatato-infundibuliformi bilabiata, labiis equilongis, superiore vix con-
cavo bilobo, inferiore patente tripartito, lobis omnibus ovalibus conformibus ; antheris glabris
subexsertis; filamento sterili glaberrimo apice dilatato.—Santa Rita del Cobre, on the moun-
tains ; Bigelow, Wright, (1476 ;) also gathered by Dr. Woodhouse. A pretty species, which has
been raised in the Cambridge Botanic Garden, from Mr. Wright’s seeds. It is a foot or 18 inches
high, including the virgate inflorescence of half that length. Leaves from 14 to 4 inches long,
and 11 to 3 lines wide, usually tapering to both ends. Corolla two-thirds of an inch long.
Anther-cells soon divaricate. According to Bentham’s arrangement this belongs to the section
Eupentstemon.

PENTSTEMON PUNICEUS (sp. nov.): glaberrimus, glaucus ; caule متا‎ valido ; foliis crassis,
radicalibus obovatis, caulinis ovatis cordato-amplexicaulibus plus minusve connatis acutis
integerrimis, floralibus parvis ; panicula contracta virgata nuda interrupta ; cymis subsessilibus
multifloris; pedicellis gracilibus (flore fere æquilongis) nudis; sepalis ovalis obtusis; corolla
infundibuliformi, limbo fere squaliter 5-lobo, lobis rotundatis patentibus و‎ antheris glabris,
filamento sterili sub apice hinc barbato.—In the Guadalupe cañon, Sonora, June, 1851; Thurber
dk Captain E. K. Smith. This is apparently a large, and must be a strikingly handsome species,
with its glaucous foliage and ‘brilliant scarlet’’ flowers. Lower leaves (with the base of the
stem) wanting in my specimen; but those present show a tendency to be eonnate-perfoliate.
Corolla less than an inch long ; the throat moderately enlarged ; lobes about 3 lines long.

PENTSTEMON PUNICEUS, var.? PARRYI: foliis superioribus (caet. ignotis) lanceolatis basi cordato-
amplexicaulibus ; cymis pedunculatis; floribus paullo minoribus; sepalis oblongis; filamento
sterili sub apice hinc densissime barbato.—On the Rio Gila, March, 1852 ; Parry. The specimens
gathered are merely two flowering summits; the color of the blossoms not recorded, nor posi-
tively to be made out. But its floral PESTRA 50 nearly accord with the و‎ that it
must, for the present at least, be appended to it,

PENTSTEMON Wricuti, Hook. Bot. Mag., t. 4601. On rocky mountain sides near the head of
the Limpio, June; Wright, (unnumbered.) Santa Cruz mountains and Los Nogales ; Captain E.
K. Smith. (The latter a somewhat remarkable form, but clearly of this species.) We have
also had this pretty species in cultivation. The corolla is rich rose-color, as described in the
letter-press, but with none of the deep red given in the figure in the Botanical Magazine.

了 ENTSTEMON SPECTABILIS (Thurber, MSS.; Torr. & Gray, in Bot. Whipp. Pacif. Railroad

15 k

114 UNITED STATES AND MEXICAN BOUNDARY.

Hep.) Mountains east of San Diego; Parry. San Pasqual, California ; Thurber, Schott. Dry
ravines, Organ mountains, New Mexico; Bigelow, Wright, (1475.) These specimens of this
well-marked and showy species, though not displaying such an ample panicle of flowers as do
the Californian ones from Thurber and Mr. Wallace, evidently belong to the same species. It
pertains to the section Cepocosmus.

了 ENTSTEMON FENDLERI, (ray, in Bot. Pope’s Rep. p. 12, t. 5. Common apparently, from the
Platte through New Mexico and the Rocky mountains to Chihuahua, (Wislizenus, No. 245,) and
brought by all the collectors. It is Fendler’s No. 576, and Wright’s 1473. (This clearly is
not distinct from P. cyananthus, Hook. Bot. Mag., t. 4464, which was overlooked when
P. Fendleri was characterized ; it must accordingly bear that name.)

PENiSTEMON GRACILIS, Nutt. Gen. p. 52. Near the Guadalupe river, above Victoria, Texas ;
Schott.

PENTSTEMON DıGITALIS, Nutt. in Trans. Amer. Phil. Soc. n. ser. 5, p. 181. Rio Hondo, Texas ;
Wright.

PENTSTEMON BARBATUS, Nutt.; Benth. in DC. Prodr. 10, p. 329. P. Torreyi, Benth./ l. c. p.
324. Common in New Mexico, along the mountains; Fendler, (581,) Wright, (440, 1474) ;
Bigelow, etc. Santa Cruz mountain; Captain E. K. Smith. We have this in cultivation from
Mr. Wright's seeds. It is hardy at Cambridge, and is taller (4 to 6 feet high) than the com-
monly cultivated P. barbatus, as well as fuller-flowered ; the virgate panicle becoming 2 or 5
feet in length, and bearing a long succession of fine scarlet blossoms, in some plants of the
most brilliant hue. The calyx-segments are either marginless or slightly margined. The
lower lip of the corolla at the throat is bearded, either somewhat copiously or sparingly, or in
some plants the beard wholly disappears, so that the name barbatus is not characteristic of this
species, But that all our forms are specifically identical with the old Chelone barbata I cannot
doubt. In establishing his P. Torreyi, Mr. Bentham, who is generally so very accurate, has
made two mistakes; the first, into which he was naturally led by the imperfection of the
original specimens, was in referring his plant to the section Cepocosmus, and comparing it with
P. imberbis, whereas it is à genuine Elmigera, having the upper lip erect, concave, and
moderately two-lobed, the lower 3-parted and reflexed ; the second in attributing to P. barbatus
& bearded sterile filament, whereas it has always been described as with a naked one, con-
formably to the distinction formerly taken in this respect between Chelone and Pentstemon.

PENTSTEMON BARBATUS, Var. PUBERULUS. Guadalupe caiion, May, 1851; Thurber. In every
respect it is P. barbatus, but with a minute pubescence on the stem and leaves.

PENTsTEMON PACCHARIFOLIUS, Hook, Bot. Mag., t. 4627. Rocky bluffs at the Big Bend of the
San Pedro river, Texas; Wright, (439, 1479.) This showy species has been found only by
Mr. Wright, who discovered it in 1849. From seeds gathered by him it has been raised both
in England and in the Cambridge Botanic Garden. Overlooking Hooker’s publication of the
species, I had named it P. Grahami, in compliment to Colonel Graham, United States Topo-
graphical Engineers, under whose command Mr. Wright was when he, for the second time, met
with the plant ; but the name has not appeared in print, so far as I am aware. The figure in
the Botanical Magazine does feeble justice to the very deep and carmine corolla, and represents
the plant as coarser and the leaves as considerably larger than usual. The latter in the wild
specimens are only 4-1 inch long, and very thick and firm. Far from being “ annual ?’’ the
plant is shrubby. The upper lip of the corolla is erect or at length somewhat recurved; the

BOTANY. ; 115

lower shorter, 3-parted and recurved. The por is ambiguous between the sections Cepocosmus
and Elmigera.

PENTSTEMON CORDIFOLIUS, Benth. Scroph. Ind. p. T, adnot & in DC. Prodr. 10, p. 329.
Mountains east of San Diego, California; June; Parry. Near the town of the same name;
May; Thurber. Santa Barbara; Major O. Rich. This species differs from all the rest of the
genus in its somewhat climbing habit. It runs over tall bushes like a Lonicera, and has bright
scarlet flowers, which are resupinate.

PENTSTEMON TERNATUS, (Torr. MSS.): glaber ; caulibus e basi fruticosa erectis; foliis ternatim
verticillatis lanceolatis argute denticulatis utrinque acutis; panicula laxa pauciflora ; corolle
tubo elongato vix ampliato labio recto; filamento sterili barbato.—Mountains east of San Diego ;
June; Parry. Branches straight and slender. Leaves about one inch long. Flowers in
terminal racemose panicles. Pedicels verticillate. Segments ofthe calyx ovate-lanceolate, acumi-
nate. Corolla nearly an inch long, pale scarlet according to Dr. Parry. This species belongs
to the section Elmigera of Bentham.

PENTSTEMON CENTRANTHIFOLIUS, Benth. Scroph. Ind. p. T, adnot. & in DC. Prodr. 10, p. 323.
Mountains east of San Diego, California; June; Parry. Also near Monterey ; Dr. Andrews
and Mr. Shelton. A fine deep scarlet-flowered species, with the leaves very variable in breadth.

PENTSTEMON BREVIFLORUS, Lindl. Bot. Heg. t. 1946; Benth. in DC. Prodr. 10, p. 329. Cali-
fornia, (near Monterey;) Hev. A. Fitch. A rare and remarkable species; also found by Dr.
Bigelow on the Stanislaus river. Corolla yellow, except the lobes of the lower lip, which are
pale purple.

PENTSTEMON HETEROPHYLLUS, Lindl. Bot. Reg., t. 1899; Benth. in DC. Prodr. 10, p. 300;
Gray in Bot. Whipp. Rep. Mountains east of San Diego, California; June; Parry. Near
Monterey; Dr Andrews. Our specimens appear to be suffrutescent. The flowers are pale
purple.

PENTSTEMON ANTIRRHINOIDES, Benth. in DO. Prodr. 10, p. 594. Dry valleys among the moun-
tains east of San Diego, California; June; Parry. San Pasqual; Thurber; May. A rare
shrubby species, 3 or 4 feet high.

LzucoPHYLLUM Texanum, Benth. in DC. Prodr. 10, p. 344. Common in southern and western
Texas, occurring in all the collections. The stigma is bilamellate, as described by Kunze, but
the two lamella commonly cohere. This must be a beautiful shrub when loaded, as it often is,
with its rich violet-purple blossoms, contrasting with its silvery white foliage. In the finest
specimens the limb of the corolla is fully an inch in diameter, and delicately soft-bearded within,
and the wide tube two-thirds of an inch long to the base of the lobes. Sometimes the fifth
stamen is present and imperfectly antheriferous.

LEUCOPHYLLUM MINUS (sp. nov.): humile; foliis obovato-spathulatis retusis pube minuta
argenteis; calycis laciniis linearibus; corolle lobis tubo dimidio brevioribus.—Hills on and
near the Pecos; Wright, (442, 1481.) Between Van Horn's Wells and Muerta; Bigelow,
Parry. A low, spreading shrub, only two feet high ; the tomentum much finer and closer than
in the foregoing, and the purple flowers not half the size. Leaves from a quarter to half an
inch long, including the petiole or tapering base. I am not sure that this is specifically distinct
from L. ambiguum, having no specimen of that species. The corolla is, however, as deeply
cleft as in L. Texanum.

MIMULUS LUTEUS, L. ; Benth. in DC. Prodr. 10, p. 310 ; var. Pils floribus minoribus. (Near
M. Scouleri; Hook; which can be only a form of M. luteus.) Copper Mines, New Mexico, and

116 UNITED STATES AND MEXICAN BOUNDARY.

near Cruces; Bigelow. Gila valley ; Schott. Napa county, California; Thurber. San Luis
Obispo; Parry. The capsule of this species accords with the generic character, as given by
Bentham, &c., except that the mcmbranaceous valves scarcely, if at all, separate from the undi-
vided placenta, but remain coherent by means of the thin and short partitions.

MIMULUS aLABRATUS, H. B. K. Nov. Gen. & Spec. 2, p. 370; Benth. l.c. Copper Mines and
Mimbres, New Mexico; Bigelow; Wright., (1842,) &c. Ojo Francisco and Tucson, Sonora ;
Parry & Capt. S. K. Smith. Texas; Wright & Lindheimer. This appears to vary as much
in size and aspect, and to have nearly as large a geographical range as M. luteus; and M.
Jamesii is pretty plainly no more than a smaller flowered and almost entire-leaved northern
form of it.

MIMULUS BREVIPES, Benth. Scroph. Ind. 2, adnot:, & in DC. Prodr. 10, p. 369. Near San Diego,
California, May; Zhurber, Parry, etc. Chiefly narrow-leaved forms, the same as Coulter’s No.
640. Bentham indicates it as perennial, but our Douglasian specimens show an annual root ;
so do those of Thurber. The capsule of this species is ovoid-lanceolate, rather firm and chartace-
ous in texture, loculicidal and splitting through the axis, separating the two placente, which
remain adnate to the valves, just as in Diplacus. Through M. rubellus, etc., there is a regular
gradation as to the dehiscence between this and the Mimuli with a thin EM SHORE nna)
capsule, and a fleshy placenta, which shows no disposition to split.

MIMULUS CARDINALIS, Dougl.; Benth. l. c. Near San Diego, and in the mountains westward,
California; Parry. The valves of the capsule with the partitions in this species tardily separate
from the axis, from which the two placentae are pretty widely separated, being projected far
into the cells.

MIMULUS RUBELLUS, (sp. nov.): tenellus, erectus, e radice annua ramosus, viscido-puberulus ;
foliis anguste oblongis lanceolatisve trinervibus fere integerrimis basi angustatis sessilibus ;
pedunculis folium plerisque superantibus ; calycis oblongi dentibus brevibus aequalibus, ore
aequali; corolle purpuree tubo haud exserto.— Wet ravines of the Organ mountains and
Copper Mines, April; Bigelow, Wright, (1483,) and Hueco mountains; Thurber, (135.) Plant
2 to 6 inches high. Leaves 3 to 8 lines long, the uppermost acutish. Calyx perfectly equal at
the summit, even in fruit, 3 lines long, narrow.. Tube of the corolla yellowish, the limb 14
line long, pink or purple. The valves of the capsule are pretty thin and delicate; but the
placenta splits at the summit in dehiscence, or is bipartible, one half remaining adnate to each
valve.

MriuvLus (DrPnacus, Nutt.) euormosus, Wendl. Obs., p. 51. San Francisco, Monterey, and
San Diego, California. In various forms, and both with red and yellow flowers. Several
annual Mimuli being dehiscent through the placenta in the same way as the present plant, there
appears to be no ground for viewing Diplacus as anything more than a marked section of
Mimulus, distinguished by its shrubby habit, glutinous foliage, and narrow pods of a firm

texture.
EUNANUS Fremont, Benth. in DO. Prodr. 10, p. 374? Dry gravelly places near Monterey,

May; Parry. Only asingle and miserable specimen was gathered. It seems likely to be à

state of E. Frémonti, or possibly of Douglasii, with a remarkably abbreviated corolla.

HERPESTIS CHAMÆDRIOIDES, H. B, K. Nov. Gen. & Spec. 2, p. 369. Santa Cruz, and Sierra
Verde, Sonora; Wright, (1484,) Schott. Also a variety with simpler and less spreading stems,
and obscurely toothed leaves (H. nigrescens, Engelm. & Gray, Pl. Lindh, No, 140:) between
the Pecos and the Limpio; Wright, (443,) and Rock Creek ; Bigelow.

17

BOTANY. HH

HERPESTIS ROTUNDIFOLIA, Pursh, Fl. 2, p. 418. Along the Rio Grande below El Paso;

Wright. (444.)
Herpestis Monnrera, H. B. K. 0. c. H. cuneifolia, Pursh. Monniera cuneifolia, Micha. Fl.

2, p. 22. Marshy shore of the Rio Grande, between Eagle Pass and Laredo, April; Schott.
Monterey, Neuvo Leon; Dr. Edwards. Chihuahua; Dr. Gregg.

CoxoBEA (SCHISTOPHRAGMA) INTERMEDIA, (sp. nov.): viscoso-pubescens; foliis subpinnatipartitis ;
floribus brevissime pedunculatis; anthere loculis subcontiguis; capsula ovato-lanceolata calyce
subinequali dimidio longioribus.—Dry hills around the Copper Mines, New Mexico; very
common; Wright. (1485). Annual, erect spreading, 2-6 inches high, with the aspect of C.
(Leucospora) multifida ; only more pubescent; the flowers very short-peduncled ; the corolla
twice as large, purple, or the lower lip pale. Capsule 3 or 4 lines long, pointed. This
connects Bentham's Conobea multifida and his Schistophragma pusilla in such a way as to
render it necessary to comprehend under one and the same genus these three species of closely
similar aspect. The pod is just intermediate between the ovate shape of the first and the linear
form which distinguishes the last; but it has the spirally striate seeds of Schistophragma. Its
unequal calyx (the upper sepal being somewhat larger, or at least longer than the others,) would
appear. to exclude it from Schistophragma no less than from Conobea; but I observe the same
thing, only rather less marked, in. an authentic specimen of Bentham's S. pusilla var. major,
from Santa Martha. The stigma is essentially the same in all three, "The present species has
one peculiarity: while in its unequal calyx it seems to approach Herpestis, in its anthers, (the
cells of which are not side by side, but one inserted a little above the other) it approaches
Stemodia and its allies.

CowoBEA MULTIFIDA, Benth. in DC. Prodr. 10, p. 491. Capraria multifida, Miche. Fl. 2, p.
22, t. 35. Common on the sandy shore of the Rio Grande near Eagle Pass, April—May ;
Schott. Rio Coleto, Texas; Thurber.

GRATIOLA PUSILLA, Torr. in DC. Prodr. 10, p. 402. On the Colorado, Texas; Wright.

VERONICA ANAGALLIS, L. New Mexico, on the Mimbres; Wright, (1487,) Thurber; and near
the Copper Mines; Bigelow.

VERONICA PEREGRINA, L. On the Rio Grande, near El Paso, and Lake Santa Maria, Chihua-
hua; Wright, (1488.) Plains near Laguna de Lache, Solado, Mexico; Bigelow. Tubac; Parry.
San Bernardino, Chihuahua; Thurber, (376.)

Bucunera ELONGATA, Swartz. Fl. Ind. Occ. 2, p. 1061. Painted Caves and Medina creek,
Texas; Bigelow, Schott.

SEYMERIA BIPINNATISECTA, Seem. Bot. Herald, p. 323, t. 59, var. Texana: pilis glandulosis et
viscidis pubescens seu villosa; ramis subvalidis; foliis bipinatifidis vel superioribus pinnatifidis,
segmentis lato-linearibus obtusis inciso-dentatis ; pedicellis seepissime brevibus ; antheris obtu-
sissimis ; capsulis glandulosis acutatis vel obtusis. —Upper Guadalupe river, etc.; Lindheimer.
Lower Rio Grande; Wright. Head of the Pedro river, Sonora? Bigelow. A stouter, more
pubescent and glandular plant than S. pectinata, and with the leaves much more cut, sometimes
even tripinnatifid. The shape of the capsule varies so in the numerous specimens under exami-
nation that I fear it cannot be greatly relied upon in this genus. The above character was
drawn up, under a different name, before Seemann's plant was published. I have not seen
Mexiean specimens. Our plant has less dissected foliage and (except in one or two instances)
much shorter pedicels than are delineated in Seemann's figure, and no such incised or pinnatifid
calyx-lobes, (which, by the way, are not mentioned in the character,) still the two are likely to
fall under the same species.

118 UNITED STATES AND MEXICAN BOUNDARY.

SEYMERIA SCABRA (sp. nov.): hispidulo-scabra, gracilis; foliis linearibus parvis pinnatipartitis
paucilobatis superioribus 3-5-fidis integrisve; corolla fere glabra; antheris sagittatis, loculis
acutis; capsulis glabellis ovato-acuminatis.— Mountain sides beyond the pass of the Limpio;
Wright, (448.) Lower leaves wanting ; the largest seen little over half an inch in length; the
segments narrowly linear 1-2-toothed or entire. Flowers about as large as those of S. pectinata.
Calyx-lobes narrowly linear. Capsule fully 4 lines long. Well marked by its anther-cells
tapering gradually to an acute point.

GrERARDIA WRIGHTI (sp. nov.): caulibus e radice perenni simplicibus virgatis cum foliis
lineari-filiformibus mucronato-acutatis scaberrimis; pedunculis flore &quilongis; calyce truncato
breviter 5-dentato; corolla flava late campanulata e tubo brevissimo extus pubescente intus
glaberrima; filamentis brevibus apice tantum villosis; antheris conformibus nudis obtusissimis
basi sagittatis, loculis aristato-subulatis ; stigmate clavato.—Hill sides between Babacomori and
Santa Cruz, Sonora; Wright, (1489,) Bigelow. With the habit, calyx, and corolla of a true
Gerardia, sect. campaniflorz, this plant has yellow flowers, (according to Mr. Wright’s notes
taken on the spot,) naked anthers, short-awned at the base, and the filaments glabrous except
near the summit. The stamens are pretty strongly didynamous, and the four anthers similar.

GERARDIA HETEROPHYLLA, Nutt.? var. pedunculis calyce dimidio brevioribus; foliis plerisque
ultra-pollicaribus. Leone Spring, Texas; Bigelow.

GERARDIA PURPUREA, Linn. San Pedro river, etc., Texas و‎ et Schott.

CasrILLEJA INDIVISA, Engelm. Pl. Lindh. 1, p. 47; Benth. in DC. Prodr. 10, p. 530. San
Pedro river ; Wright, (453,) ete. ; Bigelow. Castle-Mountain Pass, Texas, October; Thurber.

CasTILLEJA PURPUREA, Don. ; Benth. in DC. Prodr. 10, p. 531. Euchroma purpurea, Nutt.
Texas; Wright, &c. Not seen on the Rio Grande, but common further north and east. Well
distinguished by the lower lip of the corolla, which is 23 lines long, but not always half as long
as the galea. The calyx is commonly split as deeply behind as before. ‘‘ Bracts and calyx
vaiying from sulphur yellow to flesh-color, brick-red, and cherry-red, even in the same locality,
so that the specific name is not a good one." (Lindheimer.) The root is perennial.

CAsTILLEJA LANATA (sp. nov.): perennis, tomento 1066080 simplici denso undique incana;
foliis linearibus integerrimis, floralibus nunc trifidis apice coloratis ; spica demum interrupta ;
calycis aequaliter bifidi lobis obovato-oblongis integerrimis retusisve corolle labium inferius
multum superantibus.—Along and near the Rio Grande, from Eagle Pass, etc., to El Paso;

‘right, (452, 1495), Bigelow, Parry, etc. On the Limpio; Wright, (451.) Near Buena Vista;
Gregg. A most remarkable white-woolly species, with larger leaves and flowers than C. foliolosa.
'l'he latter species is sometimes almost as white, but its tomentum is formed of repeatedly branched
hairs, whereas the wool of C. lanata consists of long and simple arachnoid hairs.

CASTILLEJA TOMENTOSA (sp. nov.): perennis, pilis simplicibus laxis cano-lanata ; foliis linea-

ribus margine revolutis integerrimis, floralibus trifidis superne coloratis; spica demum inter-
rupta; calycis subaequaliter bifidi lobis semibifidis lanceolatis acutis corollam aequantibus.—
Mabibi, Sonora, June, 1851 ; Thurber. Considerably like the last and C. foliolosa, but the
wool less dense and floccose than in C. lanata, and the calyx different, and apparently fully as
long as the galea. Floral leaves and calyx-lobes red or purple.

CASTILLFJA ANGUSTIFOLIA. Euchroma angustifolia & E. Bradburii, Nutt. in Jour. Acad.
Philad. T, p. 46? On Live Oak creek, the Limpio, ete., Wright, (1491, 1492, with yellow
bracts and calyx ;) also in his first collection, but ۳ Mr. H. Engelmann collected

it at Bridger’s Pass. This most likely belongs to Nuttall’s species, but the lower leaves are -

BOTANY. 119

mostly entire. The calyx is not equally 4-cleft, but is equally 2-cleft and the divisions 2-cleft,
nearly as in C. purpurea, from which it differs by the short lower lip of the corolla.

CASTILLEJA SESSILIFLORA, Pursh, FT. 2, p. 728. Low places near Rock creek and Mule Springs ;
Bigelow. Eagle Pass; Parry. Santa Maria, Chihuahua ; Schott. Mule Springs, New Mexico,
May; Thurber.

CasrILLEJA HISPIDA, Benth. in Hook. Fl. Bor.-Am., & in DC. Prodr. 10, p. 532. Dry hills,
San Diego, California ; Parry.

CASTILLEJA INTEGRA (sp. nov.): perennis; caule stricto tomentoso ; foliis linearibus integerrimis
subtus tomentulosis, floralibus oblongis obovatisque integerrimis coloratis (paniceis); spica con-
ferta; calyce wqualiter vel postice profundius bifido, lobis bifidis lanceolatis obtusiusculis labium
inferius galea multoties brevius adaequantibus.—Organ mountains, east of El Paso; Wright,
(undistributed,) Bigelow. Guadaloupe cañon, Sonora; Capt. E. K. Smith. Also gathered in
the Rocky Mountains further north by Mr. Kreuzfeldt, in Gunnison's expedition. Stem one or
two feet high, mostly simple, rigid; leaves 14 to 3 inches long, 2 to 3 lines wide, entire ; most
of the floral ones almost wholly petaloid, ample, shorter than the fully developed flowers.
Calyx 8 or 12 lines long, red or reddish و‎ ‘‘ corolla reddish green ;" galea 6 to 8 lines long;
the lower lip very short Apparently a well marked new species of the section Callichroma.
It is No. 584 of Fendler's New Mexican وه(‎ and Dr. Bigelow gathered specimens in
Whipple's expedition on the Llano Estacado.

CASTILLEJA AFFINIS, Hook. & Arn. Bot. Beech. p. 144; Benth. l. c., p. 532 ; var. MINOR ; corolla
calyce paullo longiore. Bed ofexsiccated streams, near 7 Copper Mines， She Mexico; Piles
Wright, (1494.) Santa Maria, Chihuahua; Bigelow, Wright, (1493.) Presidio del Norte and
Sonora; Schott. Los Animos; Thurber. Tubac, Sonora; Parry. And Santa Cruz Mountains
in the same State; Captain E. K. Smith. A slender, often branching plant, with an annual or
biennial root. Flowers, especially the corolla, very much smaller than in the typical Californian
plant (such as Hartweg’s No. 1896 ;) but Hartweg's No. 1897 connects the two. The lobes of
the calyx vary from nearly entire to deeply 2-cleft; the tube is often split down ROM on the
posterior than the anterior side.

CASTILLEJA LAXA (sp. nov.): herbacea, cinereo-pubescens ; caulibus e radice perenni subdiffusis
ramosis gracilibus ; foliis tenuibus scabridis lineari-lanceolatis integerrimis basi haud dilatatis,
floralibus calyce brevioribus, superioribus rubro-coloratis ; floribus paucis confertis breviter pedi-
cellatis ; calyce rubello antice profundius postice leviter fisso, dentibus brevibus obtusis ; corolla
galea magna, lobis labii inferioris brevissimis obtusis.—Mountain sides near Santa Cruz, Sonora ;
Wright, (1490.) This appears to be a well-marked species of the section Hemichroma, with
the bracts and calyx more colored than is usual in that section. "The.thin leaves do not turn
blackish in drying; they are mostly about 2 inches long and 3 lines wide; the floral shorter and
blunter, the lower mostly green, the upper colored red. Calyx very thin, slightly pubescent, an
inch long, exceeding the lower lip of the corolla by 3 or 4 lines, but half or two-thirds of an
inch shorter than the ample galea, nearly straight, deeply cleft anteriorly, but on the posterior
side only to the depth of 2 or 3 lines; the teeth broad and short. Galea somewhat pubescent
on the back, yellowish, the edges tinged with red.

CASTILLEJA LINARLEFOLIA, Benth. in DC. Prodr., 10, p. 532. Arroyos in Sonora; Thurber.
. * Plant 4 to 6 feet high." "Though the calyx is rather shorter and the falcate galea longer, this
appears to be only C. linariaefolia. To it probably belongs C. fulgens, Nutt. ined., and C. can-

120 UNITED STATES AND MEXICAN BOUNDARY.

dens, Durand, Pl. Herrm. Dr. Bigelow gathered it at Albuquerque, New Mexico, when in
Whipple's expedition ; and Fendler's No. 583 is a narrow-leaved form of the same species.

ORTHOCARPUS ERIANTHUS, Benth. Scroph. Ind., p. 12, & in DC. Prodw. 10, p. 535. Grassy
places near San Diego, California, March ; Dr. Parry.

OnTHOcARPUS DENSIFLORUS, Benth. l. c. Dry hill sides, Monterey, California, April. Stem
nearly simple, but the specimens are early ones, and later in the season no doubt the plant
becomes much branched. Lower leaves simple, tapering to a very long narrow point. Appendages
of the lower lip rather obtuse.

OnTHOCARPUS LACERUS, Benth. Pl. Hartw.,p. 329. San Luis Obispo, California; Dr. Parry.

OnrHOCARPUS PUFPURASCENS, Benth. DO. Prodr. 10, p. 536. Moist grassy places, near Mon-
terey, California, April; Parry. ۱

CoRDYLANTHU LAXIFLORUS (sp. nov.): paniculato-ramosus, hirsutissimus, sublandulosus : foliis
linearibus brevibus integerrimis rarius trifidis ; floribus solitariis vel in ramulos breves adproxi-
matis unibracteatis; calycis lobo postico apice bidentato; corolla labio inferiori saccato subin-
tegerrimo ; antherarum loculo altero abortivo seu in stam. brevioribus plane nullo.— Rocky hills,
Sonora, Mexico; Thurber. Also Great Salt Lake; Col. Frémont, 1843. Plant branched from
the base, 1 or 2 feet high, turning dark colored in diving, very hirsute throughout with rather
viscid and and sometimes rather glandular spreading hairs; branchlets very numerous, short,
very leafy throughout, bearing from one to four or five flowers. Leaves 6 to 9 lines long, about
a line wide. Calyx half an inch long, almost equalling the ** bright yellow ” corolla. Galea
nearly straight, broad. Anthers "mom and with a minute pendulous vestige of the second
cell, at least in the longer stamens. A true congener of the Californian species, remarkable for
its scattered flowers, and for the abortion of the smaller anther cells.

CorDYLANTHUS WRIGHT (sp. nov.): paniculato-ramosus, glabellus, minute glandulosus;
foliis 3-5-partitis filiformibus; bracteis conformibus haud ciliatis ; floribus subcapitatis ; calycis
lobo postico 2—3-dentato; antherarum loculo altero pendulo etiam in staminibus brevioribus
manifesto. Prairies, from 6 to 30 miles east of El Paso, Western Texas; Wright, (450.) Sand
^ hills, Chihuahua; Thurber. This, far the most eastern of the genus, was first met with by Mr.
Wright, who found it only in the autumn of 1849, in his first expedition, which was attended by
many hardships, but which was very rich in its botanical results. This species is nearly related
to C. filifolius; but it is not so rigid, has finer foliage (without hispid hairs,) less capitate and
larger flowers, the more incurved corolla an inch and a quarter long, and the upper lip of the
calyx is more or less 2—3-toothed or cleft at the apex. Seeds elongated-oblong, deeply: farove-
reticulated.

CoRDYLANTHUS FILIFOL[US, Nutt. ; Benth. in DC. Prodr. 10, p. 597, California, (station not
recorded, but probably Monterey : Parry, Shelton. The middle lobe of the involucral bracts
is somewhat dilated at the extremity and truncate-emarginate.

PEDICULARIS CENTRANTHERA (sp. nov.): acavlis, glabra; foliis pinnatifidis scapum bis supe-
rantibus, segmentis ovatis duplicato-dentatis margine denticulisque subcartilagineis discolo-
ribus (albis ;) spica oblonga densiflora ; calycis cylindracei dentibus 5 aequalibus lanceolatis
albido-marginatis ; corolla galea cucullata erostri edentula labio inferiore patente paullo lon-
giore; filamentis glabris; antheris basi eximie bicalcaratis.—New Mexico, and on Ben More,
April, Bigelow ; the specimens from the latter locality nearly past flowering. This is unlike
any other Pedicularis that I know of, and is distinguished by its awned or spurred anthers from
all known species except P. grandiflora, Fisch., with which it has little else in common. The

BOTANY。 121

awns are so long that their tips often project beyond the hooded summit of the galea. Leaves
all radical, 6 inches long, broadly linear in outline, fringed with fine and white teeth. Peduncle
an inch long, spike (partly in fruit) 3 inches long. Tube of the calyx half an inch long; the
lobes 3 lines long, their whitish margins somewhat crisped and erose. Corolla twice the iength
of the calyx, apparently pale purple; the tube slender; the helmet-shaped galea obtuse and
not appendaged. Stamens inserted low down on the tube ; anthers 23 lines long, including the
tapering spurs.

PEDICULARIS DENSIFLORA, Benth. in Hook. Fl. Bor.-Am. 2, p. 110. Dry gravelly plains;
abundant near Monterey, California, May ; Parry; also in Napa county, in the same State,
March; Thurber. ۱

LOGANIACEZ.

MITREOLA PETIOLATA, Torr. Æ Gray, Fl. 2, p. 45. Wet places on Devil's river, and along
the middle and lower Rio Grande ; also in Santa Rosa valley, Chihuahua, September to October.
Leaves larger and broader than usual.

PoLyPREMUM PROCUMBENS, Linn. in Act. Ups. (1741,) t. 78; Torr. & Gray, l. c.; Cham. &
Schlecht. in Linnea, 5, p. 173. Common on the Lower Rio Grande, April; Schott,

了 UDDLEIA HUMBOLDTIANA, Roem. & Schult. Rinconada Pass, December ; Thurber.

BupDLEIA MARRUBIIFOLIA, Benth. in DC. Prodr. 10, p. 441. On the Rio Grande from the
mouth of the Pecos to Presidio del Norte; Parry, Bigelow. A neat shrub, 3-5 feet high, with
heads of golden yellow odorous flowers, which turn to orange red. It is No. 1407 and 1780
of Berlandier’s Coll.; 311 of Wislizenius, and 444 Gregg.

H. D. K. Nov. Gen. & Spec. 2, p. 345, t. 183. Valley of the Pecos, and‏ ,50020161585 000181۸ تل
in Sonora; Wright, (No. 447, 1486.) Mountains of Muerte, July; Bigelow. On the Rio‏
Grande, below San Carlos, October ; Parry. Coralitas, Chihuahua, August; Thurber.‏

BUDDLEIA RACEMOSA (n. sp.) : fruticosa, 1-3-pedalis; foliis oblongis subovatisve obtusis
inaequaliter crenato-dentatis basi subhastatis truncatisve raro abrupte cuneatis petiolatis gla-
bratis subtus ramisque junioribus pulverulenteo-canescentibus atormiferis; capitulis globosis
plurifloris breviter seu longiuscule pedunculatis in racemum virgatum elongatum fere nudum
dispositis ; tubo corolla calyce tomentoso brevioribus. (Upper Guadalupe, ete., Texas ; Riddell,
Lindheimer, Wright, Ervendberg.) August, November. Var. incana: foliis pube mollissima -
supra tenuiter tomentuloso subtus crebre tomentoso incanis. San Pedro river; Wright, (446.)

EMORYA, Nov. Gen.

Omnino Buddleia, nisi filamenta stylusque exserta capillaria. Frutex 3-6. pedalis, ramosus;
foliis oblongis subhastatis sinuato dentatis discoloribus ; inflorescentia laxa racemoso-thyrsoidea ;
floribus sesqui-pollicaribus viridi-ochroleucis.

EMORYA sUAVEOLENS, (TABLE XXXVI.) Cajions of the Rio Grande, below the Presidio del
Norte, October ; Parry. Leaves opposite, 1—2 inches long, and from half an inch to an inch
and a half broad, sinuately or repandly tcothed, very obtuse or truncate at the base, glabrate
above, whitish tomentose underneath ; petioles scarcely half the length of the lamina, connected
at the base by an elevated ring. Flowers in terminal cymulose panicles, sweet-scented ; pedicels
bibracteolate, the bracteoles subulate. Calyx tubular, 4-8-costate, 4-cleft nearly to the
middle ; segments nearly equal, linear-lanceolate erect. Corolla tubular, elongated, three times
as long as the calyx, equally 4-cleft, the segments short and obtuse. Stamens 4, subaequal,

Ea 16 k :

122 UNITED STATES AND MEXICAN BOUNDARY.

exserted ; anthers 2-celled, bifid at the base, mucronulate at the summit; filaments slender,
very smooth, inserted into the middle of the tube of the corolla. Ovary oblong-conical, the
base surrounded by a glandular ring. Style conspicuously exserted, filiform, smooth, except at
the base, which is a little pubescent, somewhat clavate at the summit ; stigma small, capitate.
Capsule oblong, apiculate, 2-celled, septicidal ; valves 2-cleft at the summit; placentae thick,
adnate to the axis. Seeds numerous, imbricated, the testa loose, cristate at both ends twice the
length of the nucleus. Embryo straight. We have seen one or two pentamerous flowers. This
genus is dedicated to Major William H. Emory, United States Commissioner to the Mexican
Boundary Survey, who has taken the liveliest interest in the botany of the region explored
under his command, and has afforded every facility to the gentlemen who had that department
of science in charge. Mr. Miers, to whom we sent specimens of this plant, thought it might be
referred to the tribe Buddleiz. Indeed it is nearly related to Buddleia itself.

ACANTHACEA.

ELXTRARIA TRIDENTATA, Vahl. var. CAULESCENS, Nees, in DO. Prodr. 11, p. 64. Guadaloupe
cañon, etc. Sonora; Capt. E. K. Smtth, Schott, Thurber. Lower California; Mr. Rich. (No.
1647, Wright. No. 1207, Coulter ; Mexico.)

CALOPHANES OBLONGIFOLIUS, D. Don. in Sweet Fl. Gard. 2, t. 181; Nees, l c. p. 107. Valley
of the Santa Cruz river, etc., Sonora; Capt. E. K. Smith, Thurber. Plains between Van Horn's
Wells and Muerte, and سو‎ the valley of the Rio Grande to the Gulf of Mexico. ees. —

Wright.)

C. OBLONGIFOLIUS, var. es Nees, l. c., p. 108. C. linearis, Engelm. & Gray, Pl. Lindh.
2, p. 50, (adnot.) Common along the middle Rio Grande on both sides,of the river, and in

‘Sonora; flowering from April to September. (Nos. 1463 and 1464, Wright.)

CRYPHIANTHUS BARBADENSIS, Nees, Del. Sem. Hort. Vratisl. 1841, din DC. Prodr. 11, p. 197.
Dipteracanthus nudiflorus, Engelm. & Gray, l. c., p. 21. Moist places in central and western
Texas, particularly along the lower Rio Grande; Schott, Bigelow. (Nos. 1454 and 1455, Wright.)

. Ruellia alba, Nees is, perhaps, not distinct.

DiPTERACANTHUS? SUFFRUTICOSUS (n. sp.) : caule glabro inferne fruticoso erecto; foliis obovato-
oblongis glabriusculis subcoriaceis basi in petiolem attenuatis, margine retrorsum ciliatis ;
pedunculis axillaribus 1-floris ; bracteolis oblongo-lanceolatis ; calycis lacini _lanceolato-line-
aribus tubo corolla elongato gracili subtriplo brevioribus. Presidio del Norte; July—August ;

Parry y. Sides of rocky hills, valley of the Pecos. No. 1461, Wright. Plant apparently about
a foot high. Leaves 1-12 inch long, acute or obtuse, smooth or slightly pubescent. Pedun-
cles 2-4 lines long, the bracts a little longer than the calyx. Segments of the calyx
sparsely ciliate. Corolla white; the tube 14 inch long, very slender, somewhat dilated at the
summit; lobes of the limb roundish-obovate. Stigma simple, (the inferior lobe abortive.)
Capsules 4-seeded ; seeds hispid. This is the only suffruticose species of this genus known
within the limits of our Flora.

STENAXDRIUM DARBATUM, Torr. & Gray, Bot. Popes Rep. p. 13, t. 4. Mountains and hill sides
along the Rio Grande from El Paso to the mouth of the Pecos; March—April. (No. 1453,
Wright.) Stem branching from a thick wood base. Flowers pale purple.

ScHAUERIA PARVIFOLIA (n. sp. ): des c e come ramosorissima gisaduloso-guiteqne + „foliis
oblongis ovatisve acutis ; 01 paniculatis i |; floribus oppositis sessili-

4

BOTANY. 123

bus bracteis bracteolisque subulatis; calycis laciniis lanceolato-subulatis ; corolla (purpureo)
subbilaliata, labio superiore integro vel vix emarginato, labiis oblongis equalibus, labio infe-
riore profunde trifido ; antherarum loculis parallelis contiguis muticis. Mountains and rocky
places on the Cibolo ofthe Rio Grande; August; Bigelow. Monterey, Nuevo Leon; Dr. Edwards,
Dr. Gregg. Howard Springs; Scho't. (No. 1460, Wright. No. 1459 is an early state of the
same, in which the flowering branches or spikes are not developed ) At Oak creek, western
Texas, Mr. Schott collected specimens with larger and almost orbicular obscurely repand leaves.
They probably grew in a shady place. Plant 6-12 inches long, sometimes diffuse. Leaves 4
to 1 inch in length, abruptly narrowed to a petiole which is 3 to 6 lines long. Flowers in
loose compound spikes or panicles terminating the branches. Segments of the calyx subulate.
Corolla 4-5 lines long ; the segments nearly equal and about as long as the tube. Capsule 5
lines long, the lower half abruptly contracted and stipe-like; the upper part orbicular-ovate,
acuminate, smooth, 4-seeded. Seeds discoid, muriculate, black.

SCHAUERIA LINEARIFOLIA (n. sp.:) suffruticosa e basi ramosissima glaberrima; foliis angusto-
linearibus ; spicis terminalibus gracilibus paniculatis, floribus distantibus, bracteis bracteolisque
subulatis; calycis laciniis lanceolato-subulatis, corolla (purpurea) subbilabiata laciniis oblongis
subequalibus ; antherarum loculis parallelis contiguis muticis. Rocks at the mouth of the
Great cafion of the Rio Grande, and on the Burro mountains; June—October; Bigelow,
Parry. (No. 436, Wright.) About a foot high. Leaves 8-10 lines long; the lowest ones a
little broader and somewhat spatulate; upper ones half a line wide. Flowers solitary in the
upper axils, the leaves being gradually reduced to subulate bracts, so that the inflorescence
becomes spicate. Calyx, corolla, and fruit, as in the preceding species.

Dresera* WRIGHTII (n. sp.): ramis bifariam pubescentibus ; foliis oblongo-lanceolatis acumi-
natis glabris, spicis unilateralibus nudis ; calyce glanduloso-pubescente profunde 5-fido, laciniis
oblongo-lanceolatis ; corolle tubo angusto calyce multoties longiore, labio inferiore tripartito,
laciniis lanceolato-linearibus. Between the Guadaloupe river, Texas, and the Rio Grande;
also near Monterey, Nuevo Leon; June— October. Nos. 435 and 1457, Wright. Plant appa-
rently 3 to 4 feet high ; dull grayish green ; the branches terete, marked with two broad lines
of soft pubescence. Leaves 13-2 inches long, and 6-8 lines wide ; green on both sides; the
petiole 3-5 lines long. Spikes terminating the paniculate branches. Bracts about as longas .
the very short pedicels. Corolla an inch and a half long; purplish red; the tube slender,
inflated at the base, the enlarged portion about the length of the calyx; segments of the upper
lip a line and a half wide; upper lip emarginate. Anther-cells linear, contiguous, parallel. ۱
Capsule smooth, 6-7 lines long, the upper half rhombic-ovate and semeniferous; the lower
attenuated to a narrow stipe and empty. Seeds commonly 2, rarely 3 or 4, lenticular, smooth.

DREJERA PUBERULA, (n. sp.): ramis bifariam pubescentibus ; foliis oblongo-lanceolatis vel
lineari-lanceolatis puberulis brevipetiolatis ; spicis brevibus axillaribus terminalibusque foliosis ;
calyce glanduloso-pubescente profunde 5-fido, laciniis lineari-subulatis ; corolle tubo angusto
calyce multoties longiore, labio inferiore tripartito, laciniis lanceolato-linearibus. Gravelly
hills and ravines along the Cibolo of the Rio Grande; May—June; Bigelow. No. 1456,

* We have adopted CErsted's view of the limits of Drejera, (in وو‎ Medd. Naturhist. For Kjobenb, 1854, p. 154)
merely extending the character as to the calyx, which is 5-cleft or 5-parted. It includes Drejera, Nees, and Jacobinia $ 2 of
the same author in D€. Prodr. The latter genus was founded on J. lepida, and is the only species referred by Nees, to his first
section. It differs so much from the species of the second group, which we would transfer to Drejera, that it may remaia by
itself.

124 . UNIED STATES AND MEXICAN BOUNDARY.

Wright, Valley of the Rio Conchos, below Santa Rosa, Chihuahua ; Gregg. A narrow leaved
form ; collected form is No. 1237, Berlandier. Collected at San Juan del Rio, between the city
of Mexico and Queretaro. A shrub 4 to 8 feet high. Leaves 1-2} inches long, sparsely
pubescent on both sides; petioles 1-3 lines long. Flowers and fruit nearly as in the preceding
specics.

DBREJERA THURBERI (n. sp.): foliis (parvis) oblongis lanceolatisve pubescentibus; floribus
fusciculatis quasi verticillatis foliis longioribus ; calyce glanduloso-pubescente profunde 5-par-
titis, laciniis subulato-setaceis glanduloso-pubescentibus hirsutisve corolle tubo vix triplo-
brevioribus. Along water-courses, Las Animas, Sonora; June; Thurber. Sierra del Pajarito ;
Schott. Cañon of Guadaloupe; April; Capt. E. K. Smith. An ornamental shrub, 3-4 feet
high, with a gray or whitish bark that separates in shreds, Leaves about three-quarters of an
inch long, obtuse and acute, Flowers mostly resupinate. Corolla dull red, an inch or more
in length ; the tube funnel-form ; lower lip 3-parted, the divisions linear-lanceolate, Capsules
mostly 2-seeded, as long as the fructiferous calyx.

DREJERA JUNCEA (n. sp.) : aphylla (an semper?) ; ramis virgatis minute pubescentibus ; spicis
remotifloris paniculatis ; calyce profunde 5-800 glabrescente, laciniis subulatis corolle tubo
angusto multo brevioribus. In a sandy ravine, La Peña, Cohahuila ; November; Thurber.
Plant 3-4 feet high, entirely leafless where found by Mr. Thurber, but it may bear leaves
early in the season. Flowers sessile in unilateral spikes, without either bracts or bracteoles.
Calyx at first somewhat pubescent, but at length nearly or quite smooth. ‘‘Corolla scarlet,’
an inch or more in length; the tube slender; lower lip deeply 3-parted, the divisions linear
and narrow. Capsule ovate above the middle, tapering to a narrow base below; 2-seeded.
Besides the four species of Drejera here described, we have, from the collections of Dr. Gregg,
another, which does not appear to have been noticed hitherto. It was found on the battle field
of Paso del Gallinero. The specimens are not sufficient for a full description, but the following -
character will serve for its identification : ۱

DRFJERA GREGGIE (n. sp.): ramis bifariam pubescentibus ; foliis ovatis scabriuscule pubescen-
tibus subulato-venosis ; floribus fasciculatis foliis longioribus; calyce incano pubescente, lobis
lanceolatis tubo subzqualibus. A stout shrub. Leaves 1-1 inch long, somewhat roughly
pubescent on both surfaces; petioles 1-2 lines long. Flowers dull purplish red, 13 inch long;
the segments of the lower lip nearly as long as the tube, and very narrow. Fruit not known.

LIPHONOGLOSSA PILOSELLA. Monechma Pilosella, Nees, l. c., p. 412. Adhatoda dipteracantha,
Nees, l.c., p. 396. Western Texas, on the Lower Rio Grande, and in the adjoining Mexican
States, common ; flowering throughout the summer. (No. 1458, Wright, 396, 1850, and 501, 1815,
Lindheimer. Plant 6 to 12 incbes high, suffruticose, much branched. Leaves half an inch to
one and a half inch long. Flowers three-fourths of an inch long, pale purple. This plant is
not a Monechma, for the capsule is 4-seeded, and the habit is different. 8 still further removed
from Adhatoda. We think it belongs to the genus Siphonoglossa, (GZrsted, l. c., p. 159,) the
character of which must be slightly modified to receive it. The calyx is 5-parted and the
narrow upper lip of the corolla is emarginate. The anther-cells are nearly parallel and placed
one above the other; the lower one conspicuously mucronate, and the upper one less 80. No.
1213 of Coulter’s Mexican collection is apparently an undescribed species of this genus.

DIANTHERA Americana, Linn. Sp. 1, p. 27; Torr. Fl. 2۷. York, 2, p. 21. Justicia pedunculosa,
Michz. Fl. lp. 1. Rhytiglossa pedunculosa, Nees, l. c., p. 339. Middle and western Texas.

*

BOTANY. 125

ADATODA DIPTERACANTHA, Nees, l. c., p. 396. Rio Leona, Rio San Pedro and near Eagle Pass,
Western Texas ; March, April ; Schott, Bigelow. (No. 1458, Wright.) Valley of the Conchos
and near Los Garzas; Gregg. Monterey, Nenvo Leon; Dr. Edwards. A stouter form, more
pubescent and with the stem decidedly shrubby at the base, was found on the mountains of
Muerte by Bigelow. It is No. 484 of Wright’s earlier collection, and may be Monechma
Pilosella, Nees. ۰

SERICOGRAPHIS CALIFORNICA (Gray MSS.): *'foliis parvis ovalibus ovatis vel subcordatis, utrinque
cum ramis teretibus pube molli brevissima tomentulosis; racemis brevibus laxifloris ; floribus
aut breviter aut longiuscule pedicellatis; bracteolis lineari-subulatis calyce brevioribus ; corolla
rubella longe tubulosa, labiis truncatis, superiore emarginato, inferiore 3-dentato; antherarum
loculis subzequalibus sejunctis, inferiore basi calcare obtuso brevi incurvo auctis. Beloperone
Californica ; Benth. Bot. Voy. Sulph. p. 38? Jacobina Californica, Nees in DO. Prodr. 11, p.
729. Southern part of California; Frémont. Vallecita, California; Thurber. Although not
agreeing in every respect with the description, these incomplete specimens probably belong to
Bentham’s Beloperone Californica, which Nees has not inaptly referred to his genus Jacobinia ;
but it surely belongs to Sericographis. It has the hairy lines, answering to the bases of the
suppressed stamens, well-marked. In one blossom there were three perfect stamens. The upper
lip of the corolla neatly shows the two long membranous lamella which connive and form a
long channel containing in the bud the upper part of the style; a character which (Ersted has
added to the description of this and some related genera.’’ A. Gray.

ADHATODA? LONGIFLORA (n.sp.): caule erecto minute pubescente suffruticoso; foliis lanceolato.
oblongis glabris sursum angustatis acutiusculis basi in petiolum attenuatis floribus fasciculatis
axillaribus terminalibusque sessilibus, tubo corolla elongato gracili. Road between Zuni and
Alta Sonora, September; Schott. Plant apparently about a foot high; branches erect and
slender. Leaves (including the petiole) 13-2 inches long and 3-5 lines wide, entire, nearly

smooth. Flowers fascicled in the uppermost axils. Calyx a little shorter than the lanceolate

bracts and longer than the subulate bracteoles, the segments subulate. Corolla white?; border
4-lobed, the three lower segments oblong, the upper segments bifid at the summit. Stamens 2,
exserted ; anther-cells separate, one placed above the other, obtuse at the summit, acute at the
base. Ovary 4-ovuled. This seems to be distinct from any species of the genus described by
Nees.

DIcLIPTERA RESUPINATA, Juss. in Ann. du Mus. 9, p. 268 fide Nees, l. c., p. 474? D. thlaspoides,
Nees, l. c. Santa Magdalena and Bacuachi, Sonora, September, October; Thurber, Schott. (No. .
1465, Wright.) Our plant is و‎ perennial, and some of the specimens seem to be even suffruticose,
but D. resupinata and thlaspoides are said to be annuals. The length of the peduncle is variable;
in Schoit's and Wright's specimens it is as long as the lateral divisions, but in Thurber s
they are sometimes very short, and the middle division much elongated. The heads, also,
although mostly 1-flowered, are sometimes 2-flowered. The bracts are mostly broadly cordate,
but in Mr. Thurber's specimens from Bacuachi they are ovate and obovate.

TETRAMERIUM NERVOsUM, Nees in Benth. Bot. Sulph. p. 148, t. 48. Var. hispidum foliis ovato.
oblongis obtusiusculis vel acutis (non acuminatis) Santa Cruz and Fronteras, Sonora, June,
September; Thurber. Sierra de los Janos, in the same State ;* Schott. Rocky hills, Santa Rosa,

Chihuahua; Bigelow. Valley of a mountain stream near Sonoita, Sonora; No. 1466, Wright.

Sierra de San Carlos, Tamaulipas ز‎ Berlandier, No. 3181. Mexico; Coulter, No. 1206. Our

126 UNITED STATES AND MEXICAN BOUNDARY.

plant accords very nearly with the description and figure here quoted, but almost equally with
the T. polystachyum and T. hispidum, which seem to be scarcely distinct from T. nervosum. The
bracts are both appressed, and with spreading or even recurved tips, in the same specimen. The
base of the stem is more or less woody.

TETRAMERIUM PLATYSTEGIUM (n. sp.): caule minutissime pubescente ; foliis oblongo-lanceolatis
inferioribus obtusis superioribus acutiusculis ‘utrinque scabriuscule puberulis ; spicis ovatis
terminalibus; bracteis late cordatis acuminatis appressis membranaceis leviter 3-5-nervibus ;
calyce 5-partito ; corolla bracteis subequantibus, tubo gracili, limbi laciniis oblongis subaequali-
bus. Ringgold barracks near Rio Grande City, on the Lower Rio Grande ; May; Schott. Stem
much branched ; the branches erect and slender. Leaves 1-2 inches long and 4-6 lines wide,
abruptly narrowed at the base into a petiole which is 9-8 lines long. Spikes 1 to 14 inch
long. Bracts 6-7 lines long and 5—6 lines wide, with a short mucronate acumination, closely
sessile, somewhat roughly puberulous. Calyx much shorter than the tube of the corolla, the
segments subulate-lanceolate. Corolla purple, subbilabrate, the divisions obtuse. Stamens 2,
inserted at the summit of the tube of tlie corolla; anther-cells parallel, contiguous, rather acute
at the base. Stigma minute, capitate, 2-lobed. Capsule narrowed at the base, ovate above the
middle, 4-seeded. Seeds lenticular, muricate. In the 5-parted calyx this species differs from
Tetramerium, as the genus is characterized by Nees; but in T. ovatum, Wrst. the calyx is
also 5-parted.

VERBENACEJE.

BoUcHEA LINIFOLIA, Gray in Sill. Jour. (ser. 2,) 16, p. 98, (sine desc.): suffruticosa ?
glaberrima; ramis sulcato-angulatis; foliis linearibus vel lanceolato-linearibus acutissimis inte-
gerrimis; spicis laxiusculis; floribus subsessilibus; bracteis subulatis calyce multo-brevioribus;
capsula calyce breviore. Valley of the San Pedro, Western Texas ; September, October ; Schott.
(Nos. 436, 449, and 1509, Wright.) Plants a foot or more high, with long, slender, erect branches.
Leaves 1—2 inches long and 1-2 lines wide. Spike 2-4 inches long. Calyx cylindrical; the
subulate teeth scarcely one-fourth the length of the tube. Capsule obtuse, villous at the summit.

BoUCHEA SPATHULATA (n. sp.): suffruticosa; ramis teretibus ; foliis crebris obovatis integerrimis
obtusis vel brevissime mucronatis puberulis; spicis laxis; floribus sessilibus; bracteis foliaceis
oblanceolatis, capsula calyce breviore acuta. Great Caiion of the Rio Grande near Mount Carmel و‎
October; Parry. Plant 1-2 feet high. Leaves about three-fourths of an inch long, often
fascicled in the axils and crowded on the short branchlets, somewhat scabro-puberulous. Bracts
nearly as long as the calyx. Tube of the corolla nearly three-fourths of an inch long, and the
limb half an inch in diameter.

BoUCHEA EHRENBERGIT, Cham.; Schauer in DO. Prodr. 11, p. 558. Sonora, Mexico; Thurber.
(No. 1508, Wright.)

Lirpra Wricutit, Gray in Sill. Jour. l. c. Aloysia scorodonoides, H. B. K. mov. Gen. &
Sp. 2, p. 260: ramis subtetragonis patentibus, junioribus pedunculisque pulvereo-canescentibus ;
foliis oppositis ovatis in petiolum brevem angustatis obtusis crenatis reticulato-rugosis supra
scabro-hirtis subtus tomentoso-candicantibus ; pedunculis axillaribus folium sub:xquantibus و‎
spicis cylindricis laxiusculis ; bracteis ellipticis acutis calyce longioribus; calyce ovato hirsuto,
dentibus ovatis. Rocky hills along the Cibolo of the Rio Grande, August; near the Hot
Springs, and on the Burro mountains ; September, November; Bigelow. iocos del Norte,

BOTANY 127

September ; Parry. (No. 460 and 1506, Wright.) Sonora and Chihuahua, September, November;
Thurber. A shrub 2-4 feet high, with numerous slender spreading branches, Leaves half an
inch to three-fourths of an inch long, abruptly tapering at the base into a short petiole. Spikes
1-2 inches long in the axils of the upper leaves, often forming a terminal panicle. Flowers
at first closely approximated, but becoming more or less distinct. Calyx densely clothed with
white hairs, about a line long. Corolla nearly twice as long as the calyx.

Var. MACROSTACHYA : foliis basi subcordatis , spicis longissimis. Cretaceous rocks near Ring-
gold Barracks on the Rio Grande; June; Schott. West of Cerralbo ; May ; Gregg.

LIPRIA LYCIOIDES, Stend. Nomencl. ed. 2, pars 2, p. 54 ; Schauer, l. c. Rocky places along the
Rio Grande and its tributaries from El Paso to the Gulf; also Chihuahua, Cohahuila and Nuevo
Leon, April—October. (No. 1505, Wright. No. 2547 and 3004, Berlandier.) A shrub, com-
monly 3-5 feet high, but sometimes attaining the height of 10 feet, Flowers very fragrant.

Var. foliis ternis majoribus acutis grosse serrato-dentatis. Presidio del Norte; August;
Bigelow. ۱ |

Var. foliis oppositis pauci serrato-dentatis obtusis. Presidio de Rio Grande; Parry.

LIPPIA BERLANDIERI, Schauer, l. c., p. 515. Plains near San Felipe, September : also hills and
stony places near Eagle Pass; Bigelow. Cretaceous hills on the Lower Rio Grande, March —
October ; Schott. Mount Carmel cafion, October; Parry. Plant suffruticose, 2-3 feet high.
(Nos. 459 and 1507, Wright; Nos. 832 and 2252, Berlandier.)

LirPrA geminata, H. B. K. Nov. Gen. & Sp. 2, p. 215; Schauer, l. c., p. 582. On the Rio
Grande, from Ringgold Barracks downward. This exactly accords with Berlandier’s plant,
except that the leaves are smaller.

LIPPIA NODIFLORA, Michz. Fl. 2, p. 15; Schauer, l. c. San Luis Rey, California, September ;
Parry. Common along the Rio Grande.

Lantana canescens, (H. B. K. Nov. Gen. & Sp. 2, p. 259 ; Schauer in DC. Prodr. 11, p. 607)
foliis oppositis ternisve ovato-lanceolatis leviter crenato-serratis basi in petiolum brevem attenuatis
supra scabriusculis subtus molliter incano-pubescentibus; pedunculis folium subsequantibus ;
capitulis vix involucratis demum ovatis. Santa Rosa, Cohahuila; Bigelow. This corresponds
so minutely with the description of L. canescens DC. Prodr., except in the leaves being some-
times ternate, that little doubt can exist as to its being the same species. It occurs in none of
the collections but those of Dr. Bigelow.

. Lantana MACROPODA (n. sp.): suffruticosa, inermis, appresse hirsutula; foliis ovatis grosse et
acute seratis basi abrupte attenuatis utrinque scabriusculis subtus pallidioribus ; pedunculis folio
2-3- (10-10 8 ; capitulis paullo elongatis; bracteis ovatis cuspidato-acuminatis, extimis
majoribus involucrantibus ; fructibus exsuccis. Ravines and rocky places on the Rio Grande,
from the mouth of the Rio San Pedro to 200 miles above; flowering the whole season. Saltillo;
Gregg ; (Nos. 458 and 4513, Wright.) Stem 2-3 feet high, obtusely quadrangular. Leaves
opposite, 19 inches long, somewhat scabrous with a short appressed hirsute pubescence ; veins
prominent underneath ; petiole or attenuated base of the leaf, about half as long as the lamina,
Peduncles 3—6 inches long ; heads at first hemispherical, but at length ovate; the rhachis cylin-
drical and faveolate. Flowers sweet-scented ; corolla white ; the tube scarcely exserted. Mature
fruit about the size of a hemp seed, nearly dry, with a thin sarcocarp ; the endocarp bony cos-
tate-rugous ; cocci cohering. Seeds suspended from the funicle which arises from near the base -

— ——— 9
EE K

128 UNITED STATES AND MEXICAN BOONDARY.

of the cell; near the last, and L. hispida, Kunth., but the latter species has serrato-crenate bul-
late-rugous leaves, and a juicy fruit.

LaxTANA ODORATA, Linn ; Schauer, L. c., p. 603. Var. BERLANDIERI: foliis rhomboideo-oblongis
acutiusculis supra scabriusculis subtus pallidioribus vix canescentibus. Ramos, Mexico, Thur-
ber. (No. 3184, Berlandier.) Plant 1-3 feet high, slender. Leaves about an inch long. Pe-
duncles (in Berlandier's specimens) much longer than the leaves. Flowers white.

Lantana HORRIDA, H. D. K.l. c. p. 211. Var. PARVIFLORA, Schauer, l. c. p. 597. Near San
Antonio, Texas; Thurber. Hills and dry prairies along the Rio Grande, also on the seacoast
near Indianola; September—October ; Schott. (No. 1511, Wright; Nos. 2114 and 2310, Ber-
landier.) Banks of the Escondido and near the Painted Caves ; Bigelow. We name this plant
on the authority of an authentic specimen of Berlandier's, No. 2310, which is certainly the same
as ours. It is a shrub 3 or 4 feet high, often quite unarmed, and usually the prickles are sparse
and extremely short. Flowers yellow, turning to a deep brown. The fruit is about the size of
a peppercorn and is juicy when ripe. It may be only a variety of L. Camara.

VERBENA HASTATA, Linn.; Torr. Fl. N. York, 2, p. 51. V. bastata, Lam. Ency. 8, p. 548;
Schauer in DC. Prodr. 11, p. 545. Near the Copper Mines, June—July ; Bigelcw.

VERBENA PROSTRATA, FH. Br. in Hort. Kew. (ed. 2) 4, p. 41; Schauer, l. c. p. 547. Grassy places
ncar Monterey, California; Parry.

VERBENA OFFICINALIS, Linn.; Schauer, l. c. Rocky places between Van Horn's Wells and
Muerto, July; Bigelow. Seashore, near Galveston, Texas, September ; Schott. Cañon of Gua-
daloupe, Sonora; E. K. Smith. San Diego, California; Thurber.

Var. HIRSUTA : incano-hirsuta, assurgens, bracteis calycem subeequantibus. Near the Copper
Mines, New Mexico, June; Bigelow.

. VERBENA canescens, H... B. K. Nov. Gen. & Sp. 2, p. 274, t. 186; Schauer, ۰ c. V. remota,
Benth. Pl. Hartw. p. 21. Western Texas, along the Rio Grande, and in the adjoining Mexican
States. (Nos. 1496 and 1497, Wright. Nos. 827, 955, 1485, 2054, and 2247, Berlandier.
No. TT, (1846,) Lindheimer. No. 594, Fendler.) Some forms of V. officinalis approach this
species ; and V. strigosa, Hook. Comp. Bot. Mag. 1, p. 116, seems to be hardly distinct.

VERBENA BRACTEOSA, Michx. Fl. 2, p. 14; Scnhauer, l. c., p. 549. Sa Diego mountains, on the
s. Grande, and sandy places, El Paso, etc.; May 一 October ; Bigelow, Thurber. (No. 1499,

Wright.)

VERBENA AUBLETIA, Linn.; Schauer, l. c., p. 554. V. bipinnatifida, Schauer, l. c. Glandu-
aria bipinnatifida, Nutt. Trans. Amer. Phil. Soc. (n. ser.) 5, p. 184; common everywhere in
Western Texas, New Mexico, extending to Chihuahua and Sonora. (Nos. 1501, 1502, and 1503,
Wright.) Flowers throughout the season. We have in vain sought for characters to distinguish
the two species here united. They vary in the number and form of the segments of the leaves.
The ripe nutlets are the same in both. We know of no plants which, in the wild state, are
more prone to hybridize than the North American species of this genus. Dr. Engelmann has
enumerated (in Silliman's Journal, vol. ?,) many intermediate forms between V. otticinalis, V.
hastata, V. urticeefolia, and V. stricta, which he found in the vicinity of St. Louis, Missouri.

AVICENNIA TOMENTOSA, Jacq.; Schauer in DC. Prodr. 11, p. 699. Mouth of the Rio Grande,
October— November; Schott. Also found, many years ago, at Tampa Bay, Florida, by Dr. Leaven-
worth, and at Key West by the late Mr. Blodgett.

BOTANY。 129

LABIATAE.

Hyptis sprcata, Poir.; Benth. in DC. Prodr. 12, p. 121? San Bernardino, Sonora, July;
Thurber. Differs in the unequal teeth, the longer of which are not much shorter than the
tube.

Hyptis LANATA, Benth. Bot. Sulph. .م‎ 42, t. 20. On the lower Gila; Emory. Major Rich
found it also in lower California.

MENTHA CANADENSIS, Linn.; Benth. in DC. Prodr. 12, p. 173. Banks of the Mimbres, Octo-
ber ; Bigelow. California ; Shelton.

Lycopus Evropaus, Linn. Var. SINUATUS, Gray, Man. ed. 2, p. 304. L. sinuatus, Benth.;
L. exaltatus & L. sinuatus, HU. River banks near San Luis Rey, California, October; Parry.

MoNARDELLA UNDULATA, Benth, in DC. Prodr. 12, p. 190. Dana's Ranch, California; Parry.

MOoNARDELLA CANDICANS, Benth. Pl. Hartw. p. 330 ; Torr. Bot. Whippl. Rep. p. 123. 7
tains east of San Diego, California, June; Parry. Also found by Mr. Shelton.

MoNARDELLA ODORATISSIMA, Benth. in. DC. Prodr. l. c. Near San Diego, California, and on
the mountains east, June; Parry. i

MONARDELLA VILLOSA, Benth. Bot. Sulph. p. و42‎ t. 21. San Felipe, California, June; Parry.
Var. LEPTOSIPHON : foliis integerrimis vel obsolete repando-dentatis ; corollæ tubo calyce duplo
longiore. Stem apparently assurgent. Leaves three-fourths of an inch long, ovate, abruptly
tapering at the base to a petiole which is half the length of the lamina. Bracts ovate, acute,
slightly colored. Head nearly an inch in diameter, about 30-flowered. Calyx oblong-cylin-
drical; teeth lanceolate, acute, nearly equal. Tube of the corolla slender, a little tapering
upward ; segments of the limb linear, rather acute, scarcely equal. Stamens exserted ; anther-
cells at length so much divaricate as to be in a line and almost confluent. Differs from the
ordinary form of M. villosa in being much less hairy, the leaves not crenate-serrate (as they are
in our California specimens, and in the figure quoted above), the longer petioles, less crowded
heads of flowers, and especially in the long-exserted tube of the corolla.

Micromerta Dovenasu, Benth. Lab. p. 372. Pine woods near Monterey, California, May ;
Parry.

MICROMERIA XALAPENSIS, Benth. Lab. l. c. San Antonio, Texas, April; Thurber.

CALAMINTHA GLABELLA, Benth. in DO. Prodr. 12, p. 230. Cunila glabella, Michx. Fl. 1, p.
13. San Antonio, Texas, April; Thurber.

10000178 Doverasu, Benth. Lab. p. 414. Valley of the Sacramento, and frequent in other
parts of California ; Fitch, Stillman, Shelton, etc. We have never been able to distinguish
satisfactorily more than one species of this genus. We have numerous forms of it, but they
seem to pass into each other.

HEDEOMA MOLLIS (n. sp.): incano-tomentosa ; foliis ovatis obtusis integris basi in petiolem
brevem attenuatis; verticillastris 6—12-floris; floribus brevipedicellatis ; calycibus cylindricis
non gibbosis, dentibus brevissimis ; staminibus inferioribus subexsertis, superioribus rudimentis
Sterilibus.— Cliffs near Puerte de Paysano, September; Bigelow. Plant somewhat ligneous at
the base, which throws up several slender branches 12 to 15 inches in height. Leaves three-
fourths of an inch long and 3 or 4 lines wide. Flowers crowded in axillary cymules. Calyx
about 3 lines long, slightly curved, the teeth one-fifth the length of the tube. Corolla about as

17k

130 UNITED STATES AND MEXICAN BOUNDARY.

long as the calyx. Upper lip alittle notched. Lower lip 3-lobed ; the middle lobe emarginate ;
lateral ones entire. Stamens 4 ; the two inferior ones perfect and nearly exserted ; anthers with
divaricate oblong cells; upper stamens reduced to simple short filaments.

HEDEOMA PLICATA (n. sp.): suffruticosa e basi ramosa; ramis erectis pubescentibus ; foliis
rhombeo-ovatis utrinque acutis argute serratis crebre et eximie penninerviis subplicatis, supra
scabriusculis subtus pubescentibus ; corollis calyce gibboso duplo longioribus. Dry ravines near
the Limpio mountains, July; Bigelow. (No. 464 and 1718, Wright.) Branches about a span
high, retrorsely pubescent. Leaves mostly shorter than the internodes, 3-4 lines long, of
rather a thick texture, tapering to a petiole about a line in length, the numerous straight and
parallel veins very prominent underneath. Verticils 2-6-flowered, the pedicels 1-2 lines long,
Calyx gibbous at the base, distinctly 2-lipped ; teeth of the upper lip ovate, mucronate, half the
length of the subulate ones of the lower lip. Tube of the corolla exserted, more than half the
length of the calyx ; upper lip 3-lobed, the middle lobe longer and emarginate; the upper lip
also emarginate.

HEDEOMA DENTATA (n. sp.): annua; ramis erectis gracilibus pubescentibus ; foliis petiolatis
oblongo-lanceolatis acutis pauci-dentatis ; venis prominulis; verticillis remotis 6—10-floris ;
calyce subbilabiato vix gibboso, dentibus e basi lato-subulatis inequalibus, labii superiore diver-
gentibus. Near Santa Cruz, Sonora, September; Thurber. Near the Copper Mines, October ;
Bigelow. About a foot high; much branching from the base, forming a bunch about a foot in
diameter; the internodes of the branches rather distant. Leaves 5 lines long, tapering at the
base into a short petiole, acutely 3—4-toothed on each margin; the veins underneath con-
spicuous, thicker at the extremity. Verticils usually not more than 6-flowered. Calyx slightly
gibbous toward the base; teeth of the lower lip nearly twice as long as those of the upper.
Corolla twice as long as the calyx. Upper lip emarginate; lower 3-lobed, the middle lobe
notched. Near H. Drummondi, but in that species the leaves are entire with inconspicuous
nerves, and the teeth of the calyx are all connivent.

Var. nana: foliis minoribus late ovatis vel ovato-oblongis interdum subintegerrimis. Rocky
hills of the Rio Grande, near El Paso, April—May. Piant usually from 3 to 6 inches high,
much branched from the base, incano-pubescent. Leaves one-third of an inch long. Bracts
subulate, shorter than the pedicels. Verticils approximated, 3—12-flowered. Calyx evidently
bilabiate, gibbous ; upper teeth much shorter than the lower, subulate-lanceolate from a broad
base ; lower teeth subulate.

HEDEOMA INCANA (n. sp.): fruticosa, ramosissima, incana ; ramis erectis foliosis ; foliis lineari-
bus vel oblongo-linearibus integerrimis obtusiusculis, axillis fasciculatis ; verticillastris 4—6-
floris, floribus subsessilibus ; calycibus oblongo-cylindricis villosissimis subaequaliter 5-dentatis.
Sandy places near El Paso, April—May ; Parry, Wright & Bigelow. (No. 1523, Wright.)
Plant about 2 feet high with the taste and odor of sage; the branches slender, sometimes
apparently assurgent, slender, hoary, like the leaves, with a minute close pubescence. Leaves
about three-fourths of an inch long, sessile, tapering at the base, flat. Flowers about 5 lines
in length. Calyx densely villous with long white hairs; the teeth lanceolate. Corolla more
than twice the length of the calyx; upper lip notched ; lower 3-lobed, the middle lobe deeply
emarginate ; tube short, villous in the throat. Fertile stamens 2, a little exserted ; the connec-
tive very thick ; the anther-cells widely divaricate below, opening upward. Abortive rudiments
of the superior stamens minute. Style strongly and rather unequally 2-cleft at the summit.

BOTANY。 | 131

Allied to Keithia, but with a different habit, and a shorter corolla thau in any of the described

species of that genus. In the calyx it differs from both genera. It may remain in Hedeoma
for the present, but, if other species like it should be found, it may be the type of a new genus.

了 EDEOMA Dnuxwoxpr, Benth. Lab. p. 308, & in DO. Prodr. 12, p. 245. H. acinoides, Scheele
in Linnea 22, p. 592? Sandy hills, Mexico, western Texas, and Chihuahua. (No. 463, 1518,
1519, and 1522, Wright. ; No. 620, Fendler, N. Mex. ; No. 285, fasc. II. Lindheimer.) This
species is certainly annual, and never perennial nor suffrutescent, as Bentham supposed it to be.
It is a variable plant. Sometimes it is dwarf and cespitose ; the leaves are linear-oblong or ovate,
and sessile with a narrow base, or with a petiole nearly as long as the lamina ; the calyx is more
or less hairy, and when the plant grows in sbady places the tube of the corolla is about the
length of the calyx, while usually it is only about half as long. H. ciliata, Nutt. Pl. Gamb. p.
183, is probably only a; variety of this polymorphous species.

SPHACELE CALYCINA, Benth. Lab. p. 568, and in DC. Prodr. 12, p. 255. (Tas. XXXVII.)
Near Monterey, California, May; Parry. A strong plant, 2-3 feet high, somewhat shrubby
at the base.

SALVIA LANCEOLATA, Willd. Enum. 1, p. 37; Benth. in DC. Prodr. 12, p. 299. S. trichoste-
moides, Pursh, Fi. l,p. 19. Borders of the Rio Grande in western Texas, Chihuahua, and
New Mexico; west to the Copper Mines. (No. 469, 470, and 1529, Wright ; the last a very
narrow leaved form. No. 606 8 & 608, Fendi., N. Mex., the former a small state of the plant.)

SALVIA AZUREA, Lam.; Benth. l. c. p. 302 ; Bot. Mag. t. 1128. S. angustifolia, Micha. Fl. 2,
p. 13. S. Pitcheri, Torr. in Benth. Lab. p. 251. 8. 620918, Scheele, in Linnea, 22, p. 588.
Common along the Rio Grande, in New Mexico. 5S. farinacea, Benth. seems hardly distinct
from this species. No. 468 Wright, is a narrow-leaved form.

SALVIA ALBIELORA, Mart. & Galeotti in Bull. Acad. Brux. v. 11. ex Benth. in DC. Prodr. 12,
p. 307. In damp situations, Santa Magdalena, Sonora; Thurber, Schott. Plant about 3 feet
high, paniculately branched above, smooth. Lower leaves 11-2 inches long and an inch
broad, on petioles an inch or more in length, acuminate, mostly acute at the base, serrate,
Whorls about 6-flowered, rather closely approximate, forming long racemes, which are nearly
leafless. Pedicels two-thirds as long as the calyx. Upper lip of the calyx entire; lower
2-toothed. Corolla about 4 lines long ; the upper lip strongly pubescent.

SALVIA SPICATA, Roem. & Schult. Syst. Mant. 1, p. 202; Benth. l. c. p. 315? Apache Springs,
March; Parry. Our plant accords with the description of Roemer & Schultes, and it appears
also to be the same as S. breviflora, Moc, & Sessé.

SALVIA BALLOTXFLORA, Benth. Lab. p. 270. S.laxa, Benth. in DC. Prodr. 12, p. 313. On
the Lower Rio Grande and its tributaries, and in the Mexican States south of the Gila ; common.
(No. 471, 472, 1524, and 1525, Wright. No. 821, 1431, 2240, and 3186, Berlandier.) A
shrubby species, 2-5 feet high, variable in the form and size of the leaves. Flowers bright
purplish-blue. Our numerous specimens show a gradual transition from S. balloteflora to S.
laxa. *' The plant is used as an aromatic by the Mexicans, who call it Majorano,’’ Schott.

SALVIA MICROPHYLLA, H. B. K. Nov. Gen. & Spec. 2, p. 294 ; Benth. in DC. Prodr. 12, p. 335.
Mount Carmel, near the Great Cafion of the Rio Grande; Parry. Dry prairies between Elm
creek and Turkey creek ; Schott. Mr. Bentham, to whom I sent specimens of this plant, says,
that it is ** very near S. microphylla, but the leaves are almost entire and not rugose; the calyces
also are longer." It is a shrubby and apparently somewhat spreading plant. The leaves are

132 UNITED STATES AND MEXICAN BOUNDARY.

oblong, obtuse, narrowed at the base into a short petiole, green and nearly smooth on both sides,
and rarely with one or two teeth on each margin. The flowers are in terminal racemes. Corolla
bright purplish-red, more than an inch long, the galea about two-thirds the length of the lower
lip, and a little hairy.
SALVIA PSEUDO-COCCINEA, Jacq.; Benth. in DC. Prodr. 12, p. 343. Neuvo Leon; Thurber. I
have specimens of what appears to be the same species, raised in the Cambridge (Mass.) botanic
garden, from Texan seeds collected by Mr. Wright. Perhaps not sufficiently distinct from the
next species.
SALVIA coccinea, Linn. Mant. p.88; Benth. l.c. On the Rio Grande, from Laredo down-
ward ; Schott, Dr. Edwards. Los Nogales, Sonora; Capt. E. K. Smith.
SALVIA RoEMERIANA, Scheele in Linnea, 22, p. 586. S. porphyrata, Decaisne in Rev. Hortic.
1854, ex Hook. Bot. Mag. t. 4939. Crossing of the San Pedro river, Texas, and on Live Oak
creek, a tributary of the Pecos ; also on mountains near the Rio Grande, in Chihuahua; Bigelow.
Rio Mimbres, New Mexico; Thurber. (No. 473 and 1526, Wright.) This species varies greatly
in the foliage. In the form represented in the Bot. Mag. l. c., (which is the same as Wright's
and Bigelow’s from Live Oak creek,) the leaves are mostly simple, (rarely pinnatifid, with a
pair of small remote segments,) broadly cordate, 14-2 inches wide and coarsely runcinate-
toothed. The description of Scheele applies to Thurber’s specimens and to those collected by
Bigelow in Chihuahua. It is a showy species, with large bright scarlet flowers.
SALVIA CARDUACEA, Benth. Lab., p. 302; Bot. Mag. t. 4874. B. gossypina, Benth. Pl. Hartw.
p. 330. Near San Diego, California ; Parry.
SALVIA ConuMBARLE, Benth. l. c. ; Torr. Bot. Whippl. Rep. p. 123. San Pasqual, California,
May ; Thurber. Dry hills near San Diego, California; Parry. This plant is called Chia, by
the native Californians. The seeds abound in mucilage, which is imparted to cold water, and
the beverage thus obtained is much esteemed as a summer drink. ۰
SALVIA TEXANA. SALVIASTRUM Texanoum, Scheele in Linnaea, 22, p. 585; Torr. & Gray, Bot.
Pope’s Hep. p. 169, t. 6. Western Texas and New Mexico, along the Rio Grande, mostly in
high and dry situations. (No. 466, Wright. No. 1090 and 2520, Berlandier.) We have re-
moved this plant to Salvia, from which it does not differ generically. It hardly accords with
any of Bentham’s section, but is nearest Heterosphace, from which it differs in habit and in the .
calyx closed by hairs. 1
AUDIBERTIA GRANDIFLORA, Benth. Lab. p. 312, & in DC. Prodr. 12, p. 359. (Tas. XXXVIII.)
In woods near Santa Barbara, California, March; Parry. Stem herbaceous 2-3 feet high.
Flowers bright crimson, large and highly ornamental.
AUDIBERTIA STACHYOIDES, Benth. l.c. Sandy hills, between San Diego and Monterey, March—
May; Parry, Thurber. A common shrub in California.
AUDIBERTIA POLYSTACHYA, Benth. l. c. Abundant near San Diego, California, May ; Thurber.
Stem 3-4 feet high, slightly branched, bearing numerous spikes in a long terminal panicle.
Mowarpa ARISTATA, Nutt. Trans. Amer. Phil. Soc. n. ser. 5, p. 186; Benth. in DC. Prodr:
12, p. 363. Between San Antonio and the Rio Grande, Texas, and from the Presidio del Norte
to Laredo, April—September. A low form, which I think is M. pectinata, Nutt. Pl. Gamb.
p. 182, was found by Dr. Bigelow at the Copper Mines, New Mexico. It is also No. 1531,
Wright.

MoxARDA PUNCTATA, Linn.; Benth. l.c. Sea shore near Galveston, Texas, September ; Schott.

BOTANY. 133

Monarpa FISTULOSA, Linn.; Benth. l. c. M. Lindheimeri, Engelm. & Gray, Pl. Lindh. 1, p.
20. Copper Mines; July ; Bigelow.

DRACOCEPHALUM PARVIFLORUM, Nutt. Gen. 2, p. 35; Torr. Fl. N. York, 2, p. T5; Benth. in
DC. Prodr. 12, p. 400. Dry ravines, Organ mountains, April; Bigelow, Wright.

CEDRONELLA CANA, Hook. Bot. Mag. t. 4618. Near the Copper Mines; Bigelow, Wright.
Burro mountains; Bigelow. Perhaps not distinct from C. Mexicana. No. 1532, Wright, has
broadly cordate coarsely toothed leaves, which are 14 inch long and more than,an inch wide.
In the specimens from the Copper Mines (No. 1533, Wright) the leaves are ovate or oblong,
8-10 lines long and rather sparingly toothed or almost entire. Our specimens from the Burro
mountains have lanceolate leaves, of which only a few of the lowest are slightly toothed near
the base.

CEDRONELLA PALLIDA, Lindl. Bot. Reg. 32, t. 29? Janos, Chihuahua, May; Thurber. Var.
foliis ovato-oblongis basi acutiusculis. (No. 1534, Wright.) Differs from C. cana in the more
dense and spike-like inflorescence, and in corolla being only a little longer than the calyx.

SCUTELLARIA TUBEROSA, Benth. Lab. p. 441; Torr. Bot. Whippl. Rep. p. 123. Near Monterey,
California; Parry; and Napa county in the same State; Thurber.

SCUTELLARIA RESINOSA, Torr. in Ann. Lyc. N. York, 2, p. 232; Benth. in DC. 12, p. 421.
S. Drummondii, Benth. l. c. Mule Springs, May—August; Thurber. Wet places near the
Flounce mountains, June; Bigelow. Lower Rio Grande; Schott. Valley of the Cocospera,
Sonora, September; Schott. Presidio del Norte; Parry. Plant annual, but sometimes appear-
ing to be suffrutescent, from the base becoming woody when old. Varies in pubescence, and
with the leaves entire or crenate, as well as more or less broad. 8. Drummondii passes by a
gradual transition to S. resinosa.

SALAZARIA, Nov. Gen.

Calyx subglobosus, inappendiculatus, breviter bilabiatus, post anthesin valde auctus, vesicu-
loso-inflatus, reticulatus, labiis inzequalibus integris in ore parvo confluentibus. Corolle tubus
longe exsertus, recurvato—adscendens, superne in fauce dilatatus; limbo bilabiato, labio superiore
concavo apice integro, inferiore patenti-convexo apice emarginato, lobis lateralibus brevibus
cum labio superiore coalitis. Stamina vix exserta: antherae ciliatae, staminum inferiorum uni-
loculares, superiorum biloculares cordatae. Stylus apice subulatus, indivisus. Nucule depresso-
globose tuberculose. Cotyledones radicule brevi incumbentes.—Frutex ramosissimus ; foliis
parvis petiolatis integris ; racemis paucifloris terminalibus, floribus cæruleis,

S. Mexicana, (Tas. XXXIX.) Ravines, Chihuahua, below Presidio del Norte, near the
Rio Grande; Parry. This remarkable plant was first discovered by Col. Frémont, in 1844, on
the Rio de los Angelos, a branch of the Rio Virgen, western New Mexico; but the specimens
were too much injured for description. It is a shrub 2 or 3 feet high, with numerous slender
spreading or reclinate branches, which are terete and hoary, with a minute appressed pub-
escence. The leaves are about half an inch long, petiolate, ovate or oblong-lanceolate, acute at
the base, slightly pubescent, 3-nerved; petiole 2-3 lines long. Racemes 2—6-flowered, ter-
minating the branches. Flowers on short pedicels, as large as those of Scutellaria galericulata,
which they much resemble. Calyx, at first, with entire, very obtuse and equal lips, at length
very much enlarged (nearly three-fourths of an inch in diameter) and bladder-like, with a con-
tracted orifice. Corolla nearly an inch long; the upper lip concave and incurved; lower lip
dilated, the sides somewhat reflexed, much shorter than the upper lip, to which they are

v

dL.

134 UNITED STATES AND MEXICAN BOUNDARY,

attached. Stamens scarcely exserted; the anthers approximated in pairs; the inferior (longer)
pair. with one of the cells abortive; lower pair with cordate, 2-celled anthers, the cells some-
what divaricate. Style long and filiform, not at all bifid at the summit. Nutlets depressed-
globose, horizontal, nearly a line in the transverse diameter, roughened with minute tubercles.
Seed conduplicate, or bent at an acute angle, so that the cotyledons are somewhat horizontal
and incumbent on the radicle. One or more of the nutlets are commonly abortive.

Mr. Bentham (in the introduction to his Gen. & Spec. Labiat., p. xxix) says, that the embryo
of all Labiatz that he had examined is either straight or only slightly curved ; the only excep-
tion being in Scutellaria, in which ‘it is curved backward in a peculiar manner." Salazaria
exhibits the same peculiarity, that is, the cotyledons are incumbent. The rather short radicle
is not applied close to the cotyledons, but makes an acute angle with them. This results from
the flexure of the carpel itself, which commences at an early period, and at last the vertex
approaches the base, as in Menispermum. The nutlets in Scutellaria are always more or less
roughened with minute tubercles, or with thick scales which are imbricated retrorsely. In S.
parvula there is a distinct horizontal wing, free from the tubercles, and surrounding the nutlet,
thus making an approach to Periloma, in which they are narrowly 4-winged.

It is evident that Salazaria makes a near approach to Scutellaria, but its nearly regular and
bladder-like inappendiculate fructiferous calyx, in which there is scarcely any distinction of
upper and lower lip, distinguishes it sufficiently from that genus.

PHYSOSTEGIA VIRGINIANA, Benth. Lab. p. 504. Dracocephalum Virginianum, Linn. Sp. p.
828. Western Texas; Wright.

BnazoNiA TRUNCATA, Engelm. & Gray, Pl. Lindh. 1, p. 47; Benth. l. c. p. 434. Near Austin,
Texas, May; Wright.

ManRuBIUM VULGARE, L.; Benth. in DC. Prodr. 12, p. 453. Santa Cruz, Sonora, May; Capt.
E. K. Smith. Doubtless introduced by the Spaniards.

Sracuys 0000105184, Jacq.; Benth. in DC. Prodr. 12, p. 467. Near the San Pedro river and in
other parts of Sonora; also in Chihuahua; Thurber. Tubac, Sonora, March; Parry. Copper
Mines, New Mexico, August; Bigelow. (No. 1527, Wright.) Our plant is smoother than the
ordinary of the species. We have specimens of a Stachys, collected by Dr. Bigelow in rocky
places near the Limpia mountains, which we think is a variety of 8. coccinea, but the flowers
are much smaller.

SrAcHYs AGRARIA, Cham. & Schlecht. in Linnea, 5, p. 100; Benth. l. c. p. 479. S. umbrosa,
Scheele in Linnea, 22, p. 595. Near Santa Antonio, and in other parts of Texas; Wright,
No. 1535.

SrAcHYs PALUSTRIS, Linn.?; Benth. l. c. Near San Diego, California, May; Thurber.

TRICHOSTEMA LANATUM, Benth. Lab. p. 659. (Tas. XL.) Solidad, above San Diego, Cali-
fornia, June—July ; Parry; also found near San Antonio, in the same State, by Dr. Andrews.
Pubescence purplish and velvety. Stamens exserted two inches. Plant fragrant.

'RICHOSTEMA DICHOTOMUM, Linn. Benth. l. c. Western Texas. (No. 1541, Wright.)

"TETRACLEA COULTERI, Gray in Sill. Jour. (2 ser.) 16, p. 97. (Tas. XLI.) Rocky hills on the
Rio Grande, from Eagle Pass upward to El Paso; July—October. Sierra del Pajarito, June,
Schott, and San Bernardino, Sonora, April; Capt. E. K. Smith. Mr. Bentham having in à
recent letter communicated to me his opinion that Tetraclea is a true Labiate plant, and hardly
distinct from Trichostema, Dr. Gray makes the following remarks: ** Tetraclea Coulteri 1s most
nearly allied to Trichostema, و‎ Orthopodium, as Mr. Bentham suggests. But it differs in the

BOTANY. 135

equally spreading (not declined) lobes of the corolla, and the equal stamens with parallel anther-
cells. If the published character of Z'richostema, and of the order were perfectly correct, it
would also differ importantly in the amphitropous descending ovule. But in Trichostema, also,
the ovules are amphitropous or between that and anatropous. The seed, however, is attached
below the middle, whereas in Tetraclea it is attached above the middle; but this is merely a
difference of degree. The anthers are not drawn quite right in the plate. They are scarcely
emarginate at the upper, but deeply lobed at the lower end, and perfectly opposite or parallel?”

TEUCRIUM CANADENSE, Linn. Benth. in DC. Prodr. 12, p. 581. Santa Cruz Valley Sonora ;
Schott, Thurber. West of Cerralbo ; Gregg. (No. 1542, Wright.)

TEUCRIUM CunENsE, Linn.; Benth. l. c. p. 578. (T. laciniatum, Torr. in Ann. Lyc. N. York,
2, p. 231; Benth. l. c. es in plains and low places throughout western Texas, N. Mexico,
Sonora, etc., June—September. (No. 1544, Wright.)

BORAGINACEJE.

CORDIA PODOCEPHALA (n. sp.): ramalis teretibus subcapitatis; foliis ovato-lanceolatis obtusius-
culis basi angusto-cuneatis grosse serrato-dentatis utrinque ramulisque scabro-hirsutis; pedun”
culis axillaribus terminalibusque elongatis erectis; capitulis globosis; calyce ovato strigoso
acute 5-dentato. Near San Antonio, Texas; October; also prairies and alluvions of the Rio
Grande from the San Pedro to the Pecos; Schott. Plains and grassy places, Piedra Pinta,
Texas; September—October ; Bigelow. Near Monterey, Mexico; Gregg, Dr. Edwards. (Nos.
456 and 1510, Wright.)

Plant 1-2 feet high, nearly simple or moderately branched. Leaves 1-13 inch long, and
3-5 lines wide; 4-6-toothed on each margin; scabrous on both sides, with short appressed
hairs, which commonly arise from an elevated base. Peduncles solitary in the axils, 2-6
nches long. Heads (exclusive of the corolla) about one-third of an inch in diameter; the
flowers closely aggregated. Corolla funnel-form, with a short tube, half an inch long and of
equal diameter ; white or pale rose color; the lobes short and slightly emarginate. Fruc-
tiferous calyx somewhat enlarged, the teeth triangular-ovate. Stamens included. Style long
and filiform ; the apex twice 2-cleft. Ovary 4-celled, the ovules ascending. Drupe about the
size of a hempseed (Canabis); pulp very thin ; endocarp reticulate-pitted. Cotyledons distinctly
plicate longitudinally. Apparently allied to C. patens. An undescribed species of this genus
was found by Gregg in the Balson de Mapimi. It may be thus characterized :

CogDIA GREGGI, (n. sp.): ramosissima, scabro-pubescens; foliis obovatis obtusis dentatis
plicato-rugosis, basi longe cuneatis; cymis contractis subcapitatis peccet; laciniis calycis
setaceis tubo campanulato brevioribus; corolla glabra infundibulif lata. In the
northern part of the Balson de Mapimi, flowering in April. A shrub 5-8 ok high. Leaves
scarcely half an inch long, of a pale greenish gray color. Peduncles terminating the leafy
branches, an inch long. Cymes 8-12-flowered, the flowers at first in a dense head, but after-
wards unfolding a little. The upper part of the 5-6-toothed calyx clothed with short blackish
hairs. Corolla more than an inch in diameter, white; the lobes obtuse and entire. Stamens
5-6, scarcely half the length of the corolla. Ovary tapering to a long slender style. Ovules
ascending. This species connects the sections Dasycephale and Cordiopsis. It is allied to C.
parvifolia, but has a much more contracted inflorescence. |

Corpra Borsstert (Alph. DC. Prodr. 9, p. 478,): foliis ovatis utrinque obtusis vel apice acuti-

196 UNITED STATES AND MEXICAN BOUNDARY.

usculis; interdum serrulato-repandis supra scabriuscule pubescentis subtus velutino-tomentosis ;
pedunculis corymbosis rufo-tomentosis ; calyce cylindraceo-ovato, dentibus subulato-acuminatis و‎
corolla infundibuliformi calyce duplo-longiore glabriuscula. Near Monterey, Mexico; Dr.
Edwards, Gregg. New Leon; Thurber. May. Cretaceous hills around Ringgold Barracks
on the Rio Grande ; Schott. (No. 304, Berlandier.) A shrub or small tree, sometimes attaining
a height of 15 or 20 feet. Leaves 3—4 inches long, and 2-3 inches wide. Flowers in terminal
corymbs. Corolla an inch and a half long, white, with a yellow centre. Stamens 5, shorter
than the corolla; filaments slender; anthers oblong. Style twice bifid; the lobes obtuse,
flattish. Fruit enclosed in the enlarged calyx, oblong, with a thin pulp. Endocarp thick and
bony. Albumen none; cotyledons foliaceous, much plicate and veiny. The Mexicans call this
plant Nacahuita, Dr. Gregg says that the fruit is eaten by cattle and hogs, and that a decoc-
tion of the leaves is used for pains in the limbs. It is closely allied to C. Sebestena, Linn. (C.
speciosa, Willd., which grows on Key West); but differs in the soft velvety undersurface of the
leaves, the shorter calyx with more pointed teeth, etc.

了 HRETIA ELLIPTICA, DC. Prodr. 9, p. 503. Texas; Wright. Near Corpus Christi; Major
Eaton. Near Monterey, Mexico to Camargo; Gregg. Santa Rosa, Chihuahua; Bigelow.
Between Ringgold Barracks and the mouth of the Rio Grande; Schott. September. (Nos.
233, 236 and 900, Berlandier.) A tree 20-30 feet high, and often nearly a foot in diameter,
with gnarled branches. Flowers sometimes tetramerous. Fruit the size of a large pea, yellow,
with a thin edible pulp.

Prinocatyx GREGGI, Torr. & Gray, Bot. Pope's Rep. p. 14, 1. 8. Rocky places on the Rio
Grande, from El Paso to the Presidio. (Nos. 492 and 1583, Wright.) A shrub 1-3 feet high,
with small oval leaves; remarkable for the spherical clusters of flowers and plumose calyx-
segments. ۱

STEGNOCARPUS CANESCENS, Torr. & Gray, l. c., p. 13, t. 7. Coldenia? (Stegnocarpus) canescens,
DC. Prodr. 9, p. 559. Dry hills near El Paso, etc., March—May. (Nos. 836, 959, 2256,
2389, Berlandier.)

TIQUILIA BREVIFOLIA (Nutt. herb.): annua; foliis ovatis, 3-4 veinis; staminibus inclusis. Torr.
in Bot. U. S. Expl. Exped. ined. t. 12. Desert west of the Colorado, California, March ; Schott.
This plant was found by Major Emory in 1846, in the same desert; but his specimens were
collected in the winter, and were too imperfect for determination. T. dichotoma, Pers., (Col-
denia? dichotoma DC.,) differs in being suffrutescent and in having lanceolate leaves. Late in
the season the leaves become rigid and hispid. The remarkable character of the lobed coty-
ledons in this genus was pointed out to my friend Dr. Gray many years ago. It is fully
described in the Botany of the United States Exploring Expedition. Mr. Bentham has noticed
it in Hook. Jour. Bot. & Kew Miscell. 3, p. 296.

Var. PLICATA : foliis oblongis utrinque 5-'-veniis plicato-rugosis. With the preceding.
Leaves remarkably plicate between the veins. Late in the season the stem of this becomes hard
and ligneous, so that, without examining the root, the plant might be considered as frutescent.

EDDYA HISPIDISSIMA, Torr. & Gray, Bot. Pope's Rep. p. 110,1. 9. Gravelly hills near El Paso,
New Mexico; March—May. (Nos, 485 and 1557, Wright.)

HELIOTROPIUM Curassavicum, Linn.; DC. Prodr. 9, p. 538. Sandy places, especially on the

BOTANY. 187

banks of rivers throughout western Texas and New Mexico, and west of the Pacific ; flowering
from April to September. Dr. Parry found it in abundance on the beach near San Diego.

HELIOTROPIUM INUNDATUM, Swartz Fl. Ind. Oc. 1, p. 343; Gray & Engelm. Plant. Lindheim. p.
18. Sandy plains, Eagle Pass, September; Bigelow. Near the Pecos; Schott. Dr. Edwards
and Major Eaton found the plant near Monterey, Mexico, and Dr. Gregg at Matamoras. Alex-
andria, Louisiana; Dr. Hale. (Nos. 700,917 and 2117, Berlandier. No. 1550, Wright.) AM
our specimens are evidently annual; but De Candolle has described it as fruticulose. The root
does, indeed, as in many other annuals of this dry country, become quite woody late in the
season. The nutlets are ovate and villous, and their face marked with 2 small ovate protuber-
ances, but with no 7 i

HELIOTROPIUM PHYLLOSTACHYUM (n. sp.): annuum, diffuse ramosum, strigoso-hirsutum ; foliis
lanceolatis basi in petiolum brevem attenuatis ; spicis solitariis interrupte foliaceis ; floribus sessi-
libus; lobis calycis lanceolatis inequalibus; corollæ tubo longitudine calycis extus piloso ;
antheris superne attenuatis apice puberulis ; nuculis subglobosis extus strigulosis intus bifoveo-
latis. Western Texas, No. 1551, Wright. We have the same plant, collected near Monterey,
Mexico, by Dr. Edwards and Major Eaton, and from Key West sent by the late Mr. Blodgett.
It is also No. 1538 and 3038 of Berlandier, who collected it at San Fernando, Cohahuila. Plant
more or less branched and diffuse; the branches 3-5 inches long, of a grayish aspect. Leaves
6-8 lines lon and 2-23 lines wide, scabrously hirsute; the hairs arising from a little callous
tubercle. Spikes many-flowered ; many of the flowers ebracteate, others furnished with a large
foliaceous bract which resembles the proper leaves. Flowers small: corolla apparently white,
the lobes lanceolate and erect. Stamens inserted at the lower part of the corolla-tube ; anthers
somewhat hastate. Style very short; stigma conical from a broad base. Nutlets about half a
line in diameter, with two deep pits on the face. It belongs to the section Orthostachys.

HELIOTROPIUM 886611 (n. sp.): suffruticosum, e basi ramosum, prostratum ; foliis lanceolato-
linearibus obtusiusculis pilis brevibus adpressis hirsutis ; spicis paucifloris parce foliaceis brac-
teatis, floribus sessilibus ; corolla calyce duplo longiore, limbo plicato, laciniis brevissimis ;
antheris apice barbulatis ; stigmate superne attenuato; nuculis subglobosis hispidis facie bifoveo-
latis. Sandy places near El Paso, April; Bigelow. Near Chihuahua, August; Thurber. (No.
487 and 1548, Wright.) Valley of Conchos, near Santa Rosalia, May; Gregg. Boca Grande,
Caracalio, March—April; Capt. E. K. Smith. Stems prostrate, 3-8 inches long. Leaves
6-10 lines long, rarely 2 lines wide. Spikes at first distinctly circinate, mostly few -flowered,
but sometimes 15-20-flowered, irregularly foliaceous. Flowers on short pedicels, white,
odorous. Corolla 3-4 lines in diameter, the limb spreading and strongly plieate; lobes short
with intermediate shorter ones in the sinuses. Stamens inserted about the middle of the tube
of the corolla ; anthers oblong, acute, at first coherent by their villous tips, but at length dis-
tinct. Style very short; stigma with a broad truncated base and tapering upward. Carpels
hispid with short erect hairs; the face contracted and marked with 2 minute foveoles. Mr.
Thurber informs me that the flowers are very fragrant.

HELIOTROPIUM ANGUSTIFOLIUM (n. sp.): suffruticosum, ramosissimum, erectum, adpresso-hirsu-
tum, incanum ; foliis linearibus vel lanceolato-linearibus acutis basi angustatis ; spicis dichotomis
vel solitariis ebracteatis ; floribus brevissime pedicellatis post anthesin patulis vel nutantibus ;
6070118 tubo calycem subzquante; stigmate e basi subgloboso elongato; nuculis subglobosis
hispidis intus bifoveolatis. Western Texas and along the Rio Grande, south to Eagle Pass,

18k

:
1
1
|
|

138 UNITED STATES AND MEXICAN BOUNDARY.

March—October. Near Monterey, Mexico; Dr. Edwards and Major Eaton. (No. 480 and
1546, Wright.) Plant about a foot high; often several stems from one root; branches terete,
slender, erect. Leaves 6-10 lines long, halfa line to a line in breadth, often crowded. Spikes
at first short, but in fruit 2 or 3 inches long, slightly circinate when young. Calyx a little
shorter than the tube of the corolla; the lobes lanceolate, equal, erect. Corolla apparently
white, about 2 lines long; lobes lanceolate, acute, spreading, or somewhat erect. Stamens
inserted in the middle of the tube of the corolla; anthers oblong, smooth at the tip. Stigma
elongated and narrow, from a somewhat dilated base; style as long as the ovary. Nutlets often
alternately smaller, with a narrow face, which is marked with 2 distinct pits.

HELIOTROPIUM LIMBATUM, Benth. Pl. Hartw. p. 20, No. 154; DC. Prodr. 9, p. 543. Maurin,
Mexico; Thurber. San Carlos, Mexico ; Berlandier, No. 3199. Monterey, Mexico; Dr. Edwards
and Major Eaton. A small prostrate much branched species. Stem suffruticose. Leaves about
3 lines long, cinerous, hispid, patulous. Spikes very short, few-flowered, mixed with leaves at
the extremity of the branches. Limb of the corolla much dilated and undulate, angularly
5-lobed. Anthers a little coherent and bearded at the tip. Style 3 times as long as the ovary.
Stigma conical from a dilated subglobose base; bifid at the apex. This species seems to be
nearly allied to H. humifusum, H. B. K.

HELIOTROPIUM LIMBATUM, Var. CONFERTIFOLIUM : caulibus robustioribus, ramulis suberectis ; foliis
lanceolato-linearibus confertissimis subappressis. Plains near Leon Springs, September ; Bige-
low. San Vincente; Parry. Cerralvo, Gregg. (No. 481 and 1547, Wright.) This is a much
stouter and larger plant than Bentham’s, and differs strikingly in its narrower, somewhat
appressed and crowded leaves. Flowers pale purple (Gregg).

HELIOTROPIUM TENELLUM, Torr. in Marcy Report, t. 14. Lithospermum tenellum, Nutt. ۰
Arkans. in Trans. Amer. Phil. Soc. n. ser. 5, p. 189. L. angustifolium, Torr. in Ann. Lyc. N.
York, 2, p. 225, non Michx. (where the nutlets are incorrectly described as smooth and polished.)
High plains near Howard’s Springs, and Rio San Pedro, western Texas, October ; Schott. (No.
1559, Wright.) Western Texas; Marcy. Prairies near San Augustin, Texas; Leavenworth.
On the Red river, Louisiana; Dr. Hale. Tennessee; Mr. Curry. Plant about a foot high, often
much branched. Leaves an inch long and 1-11 line wide. Racemes few-flowered, naked or
somewhat leafy ; the flowers distant, conpicuously pedicellate. Calyx very unequally 5-parted ;
the segments lanceolate-linear, in fruit much longer than the nutlets. Corolla white, 21 lines
long ; the lobes obovate-oblong and rather obtuse. Anthers oblong, slightly bearded at the tip.
Stigma nearly sessile, oblong, tapering upwards, bifid at the summit. Nutlets subglobose, the
upper part appressed-pubescent, below the middle (and often also above) reticulated, not verru-
cose as represented in the figure quoted above, without foveoles on the face.

HELIOPHYTUM PARVIFLORUM, DC. Prodr. 9, p. 553. Heliotropium parviflorum, Linn. Plains
near Eagle Pass, September, (fruit); Bigelow. Lower Rio Grande, in various places, April—
May; Schott. Monterey, Mexico; Dr Edwards, Gregg. We have specimens also from Key
West, Florida, collected by Blodgett.

HELIOPHYTUM (C@LoMA) MOLLE (n. sp.) : suffruticosum, griseo-velutinum ; foliis deltoideo-ovatis
basi in petiolum abrupte angustatis margine undulatis و‎ pedunculis terminalibus bifidis spicis
conjugatis nudis scorpoideis; floribus sessilibus; calycis lobis lanceolatis corolle tubo paullo
brevioribus ; corollz lobis obtusis crenulato-undulatis : fructu subgloboso velutino apice integro,

BOTANY。 139

loculis in utroque segmento lateralibus lacuna magna centrale interposita, Plains near Presidio
del Norte, August, fl. and fr.; Bigelow. Plant about a foot high, the stem a little woody at
the base. Leaves alternate, 2 inches long, and an inch or more wide, clothed (like the stem)
with a soft velvety pubescence, the veins underneath very distinct. Spikes 13-2 inches long,
and not much elongated in fruit, at first strongly circinate, the flowers closely approximated.

Corolla about 21 lines long,

white, infundibuliform. Anthers oblong. Stigma subsessile,
conical from a broad base, pubescent. Fruit about 2 lines in diameter, segments 2-seeded, with
a large central lacune interposed, besides 1—2 smaller lateral ones.

HELIOPHYTUM (C@toMa) GLABRIUSCULUM (n. sp.): caule herbaceo erecto e basi ramoso adpresse
pubescente ; foliis alternis lanceolatis, obtusiusculis basi in petiolum attenuatis utrinque viridis
glabriusculis ; spicis solitariis geminatis vel ternatis, junioribus scorpoideis ; floribus brevissime
pedicellatis approximatis ebracteatis; calycis lobis lineari-lanceolatis ; corollae lobis oblongis
obtusis ; fructu compresso subdidymo puberulo apice integro ad suturas late excavato, segmentis
disp-rmis, lacuna centrali interposita praeterea lacunarum 2 minorum lateralium. Sandy plains,
Eagle Pass, September ; Bigelow. (No. 1549, Wright.) About aspan high ; the lower branches
spreading and perhaps prostrate. Leaves an inch long and 2-3 lines wide, a little hairy on the
midrib underneath, the rest nearly smooth ; the margin somewhat undulate. Peduncles terminal,
bearing from one to three spikes, which are about an inch in length. Corolla white, the border
dilated, deeply 5-lobed ; the lobes slightly undulate. Stamens inserted about the middle of the
tube; anthers sessile, fixed near the middle of the back, lanceolate, acute. Stigma about as
long as the subglobose ovary, nearly tessile, conical from a broad annular base. Fruit didy-
mous, the apex truncate, concave and 4-6-denticulate; the segments sometimes only l-seeded
by abortion, with 3 empty cells, the central one (near the commissure) larger, the others lateral
and much smaller.

下 UPLOCA CONVOLVULACEA, Nutt. in Trans. Amer. Phil. Soc. n. ser. b, p. 189; Hook. Ie. t. 651;
Torr. in Marcy's Rep. p. 294, t. 15. Valley of the Rio Grande, from Presidio del Norte up-
wards, July—October. Chihuahua; Thurber. (Wright, No. 1553.) In the centre of each
division of the fruit there is a small empty cell or lacuna, which is seen only when a cross section
is made midway between the base and the apex. This genus is intermediate between Tourne-
fortia $ Arguzia, and Heliophytum.

MACROMERIA VIRIDIFLORA, DC. Prodr. 10, p. 68? Copper Mines, New Mexico, June— August;
Bigelow, Thurber. (No. 1558, Wright.) Plant two or three feet high; erect. Stem hispid with
spreading hairs. Leaves ovate, lanceolate, 2-34 inches long, and 6-12 lines wide, the
upper surface hispid with hairs which arise from an elevated callous base ; the under side either
hispid or somewhat softly villous with closely appressed hairs. Flowers nearly an inch and a
half long, tubular-funnelform, greenish and very hairy externally; yellow inside. Calyx
about one-fourth the length of the corolla; the divisions much elongated in fruit. Stamens at
first included, but at length exserted. Nutlets ovate, more than a line long, smooth, and shining,
Our plant agrees sufficiently well also with the description of M. viridiflora.

OnosMopium CAROLINIANUM, DC. Prodr. 10, p. 70. San Antonio, Texas; Thurber. We have
intermediate forms which seem to connect O. Virginiana and O. molle with this species.

LirHosPERMUM CANESCENS, Lehm. Asp. 2, p. 305; DC. Prodr. 10, p. 78. Copper Mines, New
Mexico, and Mountain Arroyos, near Camp Bache, June—July—August; Bigelow, Thurber.

140 UNITED STATES AND MEXICAN BOUNDARY.

Sierra San Luis, Chihuahua, September; Schott. No. 1653, Wright, seems to be only a narrow-
leaved form of this species.

LrrHosPERMUM LONGIFLORUM, Spreng. Syst. 1, p. 504. L. incisum, Lehm. l. c. Pentalophus
longiflorus, DC. Prodr. 10, p. 86. Banks of streams, cañon of Guadalupe, Sonora, April;
Captain E. K. Smith. Near the Copper Mines, Ben Moore, Santa Barbara, and Mimbres, April;
Bigelow. Apache Springs, March; Parry. Hueco mountains, Texas, and Ojo de Vaca, Chi-
huahua; Thurber. Nutlets ovate, white and shining, marked more or less with shallow pits.
After flowering the plant becomes more branched, and produces narrower and more crowded
leaves.

LITHOSPERMUM BREVIFLORUM, Hnglm. & Gray, Pl. Lindh. p. 44. Western Texas; (Wright, Nos.
1560 and 1561.) Nutlets as in the last.

LITHOSPERMUM MarAMORENSE, DC. Prodr. 10, p. 76. On the Lower Rio Grande; (Wright, No.
1564.) Near Monterey, Mexico; Dr. Edwards and Major Eaton. Our plant agrees very well
with Berlandier's own specimens.

AMSINCKIA LYCOPSOIDES, Lehm. Del. Sem. H. Hamb. 1831, p. 1 ; DC. Prodr. 10, p. 117. Jour-
nado between Tucson and the Gila, Sonora; also grassy places near San Diego, California,
March; Parry.

AMSINCKIA INTERMEDIA, Fisch. & Mey. Ind. 2, Sem. Petrop. 1835, p. 26; DC. i. c. " Alluvions
of the Gila, Sonora, and near San Diego, California, March ; Parry. "The insertion of the
stamens is not constant in this genus. In the same species they are sometimes placed near the
base of the corolla; sometimes in the upper part of the throat, Perhaps all the species with
rugose nutlets are forms of A. lycopsoides.

ERITRICHIUM GLOMERATUM, DC. Prodr. 10, p. 131. Myosotis glomerata, Nuit. Gen. 1, p. 112,
Hook. Fl. Bor.- Amer. 2, p. 82, t. 162. Near El Paso and Doña Ana, March—April. (No. 1566,
Wright.) New Mexico; Fendler. No. 632. About a foot high. Root perennial. Hairs of the
calyx and of the upper leaves yellowish. Nutlets closely fitted to each other, forming a depressed
globose fruit, margined; the back strongly rugulose transversely and more or less verrucose.

Var. HISPIDISSIMUM is more hispid, and seems to be biennial. Common in New Mexico.

ERITRICHIUM J AMESII, Torr. in Marcy Hep. p. 294. Myosotis suffruticosa, Torr. in Ann. Lye.
New York, 2, p. 225. Near the Copper Mines, New Mexico, and Mule Springs, March—
June, El Paso, and Journado del Muerto, March—April; Thurber. Dry ravines, San Luis,
Sonora, April; Captain E. K. Smith.

ERITRICHIUM HELIOTROPIOIDES. Antiphytum heliotropioide و‎ Alph. DC. in Prodr. 10, p. 122.
Sandy shore of the Rio Grande at Eagle Pass; Schott. No. 1512, Wright. Valley of the Lim-
pio; Bigelow. Dry plains southwest of Escondido, May, (1847,) and Saltillo, (1848 and 1849;)
Dr. Gregg. Our specimens agree in all respects with Berlandier's. The leaves are not opposite,
and we have little doubt that the plant should be referred to Eritrichium, $ Rutidocaryum.
The root is annual, but in old plants the stem becomes hard and ligneous.

ERITRICHIUM (RUTIDOCARYUM) FLORIBUNDUM (n. sp.): caulibus erectis basi simplicibus superne
peniculatim ramosissimis foliisque adpresse cinereo-pubescentibus; foliis lanceolatis seu lineari-
bus acutiusculis; racemis brevibus paniculatis paucifloris parcebracteatis; corolla campanulata,
lobis rotundatis; nuculis late-ovatis acutiusculis densissime verruculosis. Mountains of Puerte
de Paysano, September, fl. and fr.; Bigelow. Also in low places near Rock Creek. Root
apparently perennial. Stem 2-3 feet high. Leaves 1-14 inch long; the radical ones 3-4
lines wide, lanceolate or lanceolate-spatulate ; the cauline 1-2 lines wide. Racemes lateral

BOTANY. 141

and terminal, forming a long, somewhat contracted panicle, 3—8-flowered, at first circinate و‎
flowers approximated, on short pedicels. Segments of the calyx linear, somewhat hispidly
pilose. Corolla white, about one-third longer than the calyx ; the tube very short ; borde
much dilated. Stamens scarcely exserted. Nutlets nearly a line long, the face acutely arinate,
and a small prominence near the base, where it is attached to the style; the back strongly convex.

ERITRICHIUM PUSILLUM, Torr. & Gray, in Bot. Pope Rep. p. 15. Dry hills and rocky places
near El Paso, March ; Bigelow, Wright. Santa Maria, Chihuahua, March; Parry.

ERITRICHIUM CRASSISEPALUM, Torr. & Gray, l.c. Dry soils in various places along the: Rio
Grande, from Eagle Pass upward to El Paso, westward to Gaudalupe Pass, Sonora, March—
April. ۱

ERITRICHIUM MICRANTHUM (n. sp.): annuum, pusillum, canescenti-hispidum; caule © basi
ramosissimo ; foliis linearibus obtusis ; racemis brevibus longe bracteatis ; floribus confertis,
corolla minutissima, fauce nudo; nuculis oblongis acutiusculis glaberrimis dorso convexis
angulo interno prominente sulcato. Sand hills, Frontera, Texas, and in other places along
the Rio Grande, March—A pril ; Thurber. (Wright, No. 1565.) Stem 2-4 inches high, much
branched from the base, and apparently diffuse when old; the branches very slender. Leaves
3-4 lines long, and scarcely more than half a line wide. Racemes at first capitate and crowded
with short leafy bracts, unfolding gradually, but never more than half an inch long, the
flowers so close together as to be imbricated, with foliaceous bracts at the base longer than -
the calyx. Segments of the calyx linear. Corolla less than a line in length, separating early from
the base, but remaining on the flower like a calyptra, the tube narrow, and about as long as the
calyx ; no traces of appendages ; the lobes small and ovate. Stamens inserted about the middle
of the corolla-tube, nearly sessile. Nutlets about one-third of a line long, narrowly oblong,
shining, apparently adhering to the column (which is very broad at the base,) by the whole
length of the sulcate inner angle. This species is allied to Krynitzkia, and also to the section
Cryptantha of Eritrichium, differing from the first in the persistent calyx, and in wanting the
appendages of the corolla, from the latter in the homomorphous flowers and smooth nutlets.

EnrrRICHIUM ANGUSTIFOLIUM, Torr. in Pacific Railroad Reports, 5, p. 363. On the Rio Gila;
Thurber, ` Cañon of Guadalupe Mountain, Sonora; Capt. E. K. Smith. The segments of the
calyx are much elongated after flowering, when they become almost subulate. One of the nutlets
is sometimes larger and smoother than the others, Differs from E. crassisep#lum in the longer,
denser, and naked racemes ; in the nutlets being wholly or nearly homomorphous, oblong, and
only very minutely scabrous. f

Errrricutum OHORISIANUM, DC. Prodr. 10, p. 130? Grassy hills near San Luis Rey, and on
mountains east of San Diego, California, March—June ; Parry. The plant from the former
station is much larger, with radical leaves 3 inches long and 3-4 lines wide. Specimens laid in
the herbarium give out, after some time, a purplish material, which leaves the imprint of the
plant on the paper. The coloring matter is of a resinous or terebinthine nature and is quite
soluble in alcohol, so that it is not a kind of indigo. It is contained in cells which are situated
along the margin and on each side of the midrib. In the dried plant the color is of a bright
red. We have a strong suspicion that E. Californicum, E. Chorisianum, and E. Scouleri are
noi distinct,

Prorocarya CHILENSIS, DC. Prodr. 10, p. 120. California, (the station not recorded, but
probably near San Diego;) Parry.

5
ARE

142 UNITED STATES AND MEXICAN BOUNDARY.

KRYNITZKIA LEIOCARPA, Fisch. & Mey. Ind. T, Sem. H. Petrop. 1841, p. 52. Grassy hills near
San Luis Rey, February ; Parry. Also found in California by the Rev. A. Fitch.

EcuirNosPERMUM DEFLEXUM, Lehm. Asp, No 93: Var. lobis calycinis oblongo-linearibus. Hills
near the Copper Mines, New Mexico, August, fl. & fr.; Bigelow. This differs from my Euro-
pean specimens of this species in the narrower lobes of the calyx; but they are nearly as broad
as those of E. secundum, Kar, & Kir., which Alph. DC. refers to E. deflexum. In specimens
of the latter from Altai, (collected as I think by Bunge,) the nutlets are somewhat heteromor-
phous, two opposite ones having rather a broad margin, which is pectinate with flat glochidiate
prickles ; the other two are smaller, with a much narrower margin and shorter prickles. Our
plant has a biennial root. The stem more than 2 feet high. Lower leaves 2 inches long and
5-7 lines wide, villous with spreading hairs. Racemes numerous, forming a loose terminal
panicle, bracteate to the summit. Pedicels closely deflexed. Corolla salver-form, 2 lines long,
with a short tube and obtusely 5-lobed border ; the throat furnished with 5 very prominent tuber-
cles. Nutlets homomorphous ; the aculei marginal only, iu a single series, confluent at the base.

EcnrNosPERMUM PATULUM, Lehm. Asp. No. 95. Gravelly and sandy soils. Valley of the Rio
Grande, from El Paso to Eagle Pass, and west to the Gila. Usually about a foot high, and
much resembling E. Lappula.

EcHINOSPERMUM STRICTUM, Nees. in Maximill. Trav. App.; Torr. & Gray in Bot. Pope Rep. p.
15. E. Texanum, Scheele in Linnea 25, p. 260. Cynoglossum pilosum, Nutt. Gen. 1, p. 114?
Near San Antonio, Texas; Thurber. Western Texas; Wright, No. 1573. Nutlets with an
inflexed border and a deeply depressed disk ; almost as in Omphalodes. Towers pale blue.

ERITRICHIUM PTEROCARYUM, (n. sp.,) Torr. in Bot. U. S. Expl. Exped. t. 13, ined. Hills and
rocky places near El Paso, etc.; Bigelow. (Wright, No. 1570.) This species was first detected in
Oregon by Dr. Pickering while connected with the United States Exploring Expedition. It is
about a foot high and remarkable for its conspicuously winged fruit, the wings being as broad
as the body and more or less toothed above the middle. In the Oregon specimens, and in some
of those from New Mexico, one of the nutlets is apterous.

CYNOGLOssUM GRANDE, Dougl.; Hook. Fi. Bor.-Amer. 2, p. 85. Napa valley, California,
March; Thurber. Also found by Mr. Fitch in the same State.

HYDROPHYLLACEZ.

NEMOPHILA PEDUNCULATA, Benth. in Linn. Trans. 17, p. 275? Napa valley, California ; Thur-
ber. This is the same as No. 480 of Coulter's Californian Collection. It is named N. parviflora
by Dr. Harvey, (MSS.,) but differs from that species in the seeds being more numerous (10-13)
and tuberculate, not 4, and impressed-punctate. The arillus is calyptriform in both species.
The leaves, too, are usually 7-9-lobed in N. pedunculata, and only 5-lobed in N. parviflora.
Alph. De Candolle (in Prodr.,) remarks that he found the placentae 2-ovulate in both species,
and Fischer & Meyer (l. c.) think they are not distinct. They may have examined a different
plant from the one here noticed, probably a mere variety of N. parviflora.

NEMOPHILA AURITA, Lindl. Bot. Reg. t. 1601; Alph. DC. Prodr. 9, p. 290. San Diego, Cali-
fornia; Parry. San Pasqual, in the same State, May ; Thurber.

NEMOPHILA LINIFLORA, Fisch. & Mey. Sert. Petrop. t. 5. Dana's Ranch, and grassy plains
below Los Angelos, March; Parry. Napa Valley, May; Thurber.

BOTANY。 143

ELLISIA MEMBRANACEA, Benth. in Trans. Linn. Soc. 17, p. 214; Alph. DC. l. c. p. 292. Moist
shady places, Sau Diego, California ; Parry. Coulter’s No. 470 is the same.

ELLISIA CHRYSANTHEMIFOLIA, Benth. l. c.; Alph. DC. l. c. Santa Barbara, California,
and near Tucson, Sonora; Parry. Our specimens agree with Douglas’ original ones, except
that the flowers are more developed in the former than in the latter. The corolla is nearly twice
as long as the calyx.

PHACELIA CIRCINATA, Jacg. fil. Ecl. 1, p. 135, t. 91, & Alph. DC. Prodr. 9, p. 298. Dry hills
near Santa Barbara and Monterey, California, April—May ; Parry.

了 PHACELIA INTEGRIFOLIA, Torr. in Ann. Lyc. New York, 2, p. 222,1. 3. Near El Paso, etc.,
March—A pril, and Chihuahua, August; Thurber. (No. 1581, Wright.) The specimens from
these stations resemble the original plant; but others, from the Mimbres and Sonora, have the
leaves more or less deeply pinnatifid and the segments often toothed, (as in No. 1579, Wright.)
so that the specific name is not appropriate, The capsule is globose. The four seeds are oval,
rough, with minute warts on the back, and the face is strongly corrugated transversely, as well
as marked with a longitudinal ridge. |

卫 HACELIA coxaESTA, Hook. Bot. Mag. t. 3452 ; Alph. DC. l. c.' Rocky hills near Camp Bache,
and near the Copper Mines, July—August; Bigelow. Near San Antonio, Texas, April—May;
Thurber. Nos. 1574, and 1576, Wright; also, 2 1755, a dwarf form.

PHACELIA TANACETIFOLIA, Benih. l. c.; Alph. DC. l. c. Hills near Monterey, California, May;
Parry. San Diego, May; Thurber. Var. rENUIFOLIA. P. tenuifolia, Harv. MSS. Pl. Coult.
San Diego and other places in California, March ; Parry, Thurber. This is surely only a slender
leaved var. of P. tanacetifolia. Var. LATIFOLIA: foliis segmentis ovato-oblongis grosse dentatis.
Mountains east of San Diego, June; Parry.

了 PHACELIA NEOMEXICANA (Thurb. MSS.): erecta, pilis patentibus pubescentia viscosa intermix-
tis; foliis pinnatisectis, segmentis valde inequalibus, utrinque 4-6 cum impari oblongis inciso-den-
tatis, lobis ovatis subdentatis acutiusculis ; racemis spiciformibus densifloris corymbosis ; floribus
subsessilibus ; lobis calycis oblongis; corolla calyce subduplolongiore campanulata, margine
eroso-dentata ; staminibus vix exsertis. Pine woods near the Copper Mines, New Mexico,
August; Thurber. (No. 1577, Wright.) Stem 1-2 feet high, hispidly pilose and viscidly
pubescent. Leaves 3-4 inches long, thin, the segments rather distant, about an inch long.
Calyx not enlarged in fruit. Corolla about 3 lines in diameter, the appendages near the base
with their free margins reflexed. Filaments smooth. Style hairy below. Capsule globose-ovate.

PHACELIA (Evtoca) LoAs FOLIA. EUTOCA LOASAEFOLIA, Benth. l.e. Monterey, California, May ;
Parry. Also found by Rev. Mr. Fitch, but the station not recorded. We strongly suspect this
to be only P. malveeflora, Cham. d: Schlecht. in Linnea, 4, p. 494. Theonly discrepancy is the
number of seeds said to occur in that species; but there may have been more ovules, only part
of which ripened.

PHACELIA (Euroca) viscrpa. Eutoca viscida, Benth. in Bot. Reg. t. 1808. Cosmanthus viscidus,
Alph. DC. Prodr. 9, p. 296. Bushy places near Santa Barbara, California, March. “ Flowers
yellowish,” Parry. Eutoca albiflora, Nutt. Pl. Gamb., seems to be scarcely distinct from
this species. Mr, Nuttall described from dried specimens, and was not sure that the flowers were
white.

Puacetta (Evroca) Doveras. Eutoca Douglasii, Benth. l. c. Sand hills, Dana's Ranch,

California, March ; Parry. Sepals linear-spatulate. Stamens included, *'dilated at the base,

144 UNITED STATES AND MEXICAN BOUNDARY.

where they are united to the appendages of the corolla ;'" Thurber, MSS. The corolla is pale
purple, not ““ lutescens?" as Alph. DC. supposed it to be.

PHACELIA (Euroca) PARRYI (n. sp.) : parce hispida, pilis longis patentibus pubescentia viscosa
intermixtis; foliis ovatis grosseinequaliter serratis ; racemis plurifloris foliis multo longioribus ;
pedicellis calyce fructifero 2-3-plo longioribus; lobis calycis anguste-linearibus corolla ampla
campanulata duplo brevioribus ; filamentis basi squamæ corolle adnatis ; placentis 20—25-ovu-
latis. Mountains east of San Diego, California, June; Parry. Stem 1-2 feet high, apparently
erect. Leaves 1-1 inch long, tapering at the base to a petiole which is 6 or 8 lines long.
Racemes at first circinate, when in fruit nearly a foot long. Pedicels about an inch in length,
spreading horizontally. Segments of the calyx a little dilated upward. Corolla two-thirds of
an inch in diameter, purplish, the lobes rounded and entire. Stamens scarcely exserted ; the
filaments with a small truncate or bidentate adnate scale at the base. Capsule ovate, rather
acute, containing about 40 oblong and scabrous seeds. As remarked in the Botany of Parkes'
P. R. R. Report, this species seems almost intermediate between Phacelia (Eutoca) and Whitlavia.
It has the corolla of the former, with the long pedicels and corolline scales of the latter.

PHAcELIA (EurocA) INFUNDIBULIFORMIS (n. sp.): annua, erecta, hispida, pilis rigidis patentibus
pubescentia nigra viscosa intermixtis; foliis pinnatifidis, segmentis 7-9 inciso-lobatis, lobis
obtusis integris vel dentatis ; racemis scorpioideis plerumque bifidis multifloris, floribus congestis
brevipedicellatis ; lobis calycinis spathulatis ; corolla semiquinquefida, lobis integris, tubo infun-
dibuliformi; placentis 10—12-ovulatis. Overhanging rock on a mountain near Lake Santa Maria,
Chihuahua, April; Bigelow, Wright. Plant 6-8 inches high, somewhat branching from the
base. Leaves 1-2 inches long in Bigelow’s specimens, somewhat longer in Wright’s. Spikes
30-40-fowered, when in fruit 24-4 inches long; the flowers very closely approximated, on
pedicels a line or more in length. Calyx hispid and glandularly pubescent, the segments unequal,
about two-thirds the length of the corolla, linear-spatulate, obtuse. Corolla pale purple, 23
lines long, the tube narrower and funnel-form ; lobes rounded. Stamens included, with a pair
of oblique folds near the base of each filament. Style 2-cleft about half its length, hairy at the
base. Fructiferous calyx nearly the length of the obtuse capsule. Seeds about 20, oval, com-
pressed, scabrous, with an elevated ridge on the face. This species is remarkable for its funnel-
form corolla, in which character it resembles the section Conanthus of Eutoca (Alph. DC. Prodr.) ;
but the habit of the plant is different from that of E. aretioides. "Wright's specimens have a
laxer habit, as well as larger and more membranaceous leaves than Bigelow’s, probably from
having grown in a shady place.

PHACELIA (Evroca) Doverasm. 了 utoca Douglasii, Benth. l. c.; Alph. DO.I. c. Sand hills,
Danas' Ranch, California, March ; Parry.

PHACELIA MICRANTHA (n. sp.): annua, erecta, gracilis, parce glanduloso—pubescens ; foliis
pinnatifidis, segmentis 5-9 obovatis obtusis integris vel 1-2-dentatis; petiolis marginatis basi
auriculatis ; racemis simplicibus vel bifidis paucifloris ; calyce pedicello subzquali, segmentis
obovato-oblongis obtusissimis, corolla late campanulata calyce vix longiore campanulata ; pla-
centis 8-12-ovulatis ; seminibus oblongo-cylindricis incurvis transverse valde rugosis. Stony
hills, near El Paso, March; Bigelow. Santa Cruz, near Tubac, Sonora; Parry. (No. 1582,
Wright.) Plant 4-8 inches high, moderately branching. Leaves about an inch in length
contracted below to a narrowly winged petiole and then dilated and auriculate at the base.
Flowers distant, 1} line in diameter, the pedicels slender and a little spreading. Calyx some-
what enlarged in fruit. Corolla pale purple; the 10,appendages minute, transversely lunate.

ur \

BOTANY. 145

Seeds often 20-24, with deep transverse ruge so as to appear articulated. A very distinct
species, which was found by Dr. Bigelow, in Whipple’s Expedition, as far west as the Colorado
ef California, but was omitted in the Botanical Report.

PHACELIA CILIATA, Benth. l. c. Grassy hills, San Luis Rey, California, February; Parry.
San Diego ; Thurber, (a large state of the plaat.) Hill sides, Sonora, March; Capt. E. K. Smith.
Ojo de Vaca, Chihuahua ; Thurber.

EMMENANTHE PENDULIFLORA, Benth, l. c. ; Alph. DC. l. c. San Pasqual, California, May ;
Thurber. We have also specimens of this rare plant collected by Dr. Andrews, near Monterey.

POLEMONIACEZ.

PHrox DRuuuoxDIr, Hook. Bot. Mag. t. 3441; Benth. in DC. Prodr. 9, p. 305. Sandy places,
central and western Texas, June to September.

了 PHLOX SPECIOSA, Pursh, Fl. 1, p. 149; Benth. l. c. p. 307. P. longifolia, Torr, in Stansbury
Rep. Gravelly hills, on the upper Rio innie:

Var.? STANSBURYI: suffruticosa ; caule superne pedicellis calycibusque glandulosa-pubescentibus;
corollæ lobis oblongo-cuneatis obtusis vel emarginatis. Gravelly hills near the Organ Mount-
ains, New Mexico; Bigeiow. San Luis Mountain; Capt. E. K. Smith. Plant about a span
high, much branched from a ligneous base, hairy and glandular, or the leaves and lower part
of the stem nearly smooth. Teeth of the calyx scarcely as long as the tube. Corolla rose-color,
the segments often a little emarginate. Style two-thirds as long as the tube of the corolla. Cells
of the ovary 2-ovuled.

PHLOX TRIOVULATA (Thurber MSS.): کت ین‎ pai} ; caule erecto suffruticoso e basi
ramoso; foliis anguste linearibus rigidiusculis ; calycis laciniis subulatis tubo subsequalibus و‎
corolle tubo calyce tertio longiore, laciniis obovatis margine sepe eroso-denticulatis ; stylo
ovario subsequante ; loculis ovarii triovulatis. Ravines, Mule Spring; Thurber, Bigelow. Rio
Mimbres; Dr. Henry. Escondido; Parry. Flowers from April to July. (No. 504, 1653,
1654, Wright.) Plant 6-12 inches high, the lower part of the stem decidedly shrubby. Leaves
1-12 inch long, and 1-11 line wide. Corolla white, }-1 inch in diameter. The tube nearly
straight; segments varying from nearly orbicular to obovate, sometimes with a short mucro.
Style and its deep divisions scarcely as long as the ovary. Ovules superimposed. This is the
only species of Phlox hitherto found in which there are more than two ovules in each cell.

COLLOMIA GRACILIS, Dougl.; Benth. l. c. p. 308. New Mexico, Sonora, and California, March—
May.

COLLOMIA GRANDIFLORA, Dougl. in Lindl. Bot. Reg. t. 1174; Benth. l. c. p. 308. Mountains
east of San Diego ; Parry. !

NAVARRETIA ATRACTYLOIDES, Hook. & Arn. Bot. Beech. p. 368 ; Benth. l. c. p. 310. Dry places
near San Diego and Monterey, California; Parry. San Pasqual, May, Thurber.

NAVARRETIA ScHorTH (n. sp.): humilis; foliis lineari-oblongis inciso-dentatis glabriusculis,
dentibus paucis patentibus integris spinescentibus; capitulis paucifloris; corolle tubo calyce
sublongiore ; staminibus exsertis ; ovarii loculis 2-3-ovulatis. In the Colorado Desert, Sonora ;
Schott. Plant 2 or 8 inches high, simple below. Leaves about three-fourths of an inch long,
with 5-6 salient teeth on each side; the involucral ones similar in form to the others. Flowers
apparently white, sessile. Segments of the calyx subulate, terminating in a long slender spine,
or rather bristle. Segments of the corolla oblong, acute, mucronate. The specimens were col-

19k

146 UNITED STATES AND MEXICAN BOUNDARY.

lected very early in the season, and the more advanced state of the plant is doubtless consider-
ably taller and more branching.

GiLIA VIRGATA, Steud, Nom.; Benth. l.c. p. 311. Monterey, California; Parry. This species
is certainly an annual.

Gira GUNNISONI, Torr. & Gray, in Pacif. Railroad Expl. 2, (Bot. Beckw. & Gunnis.) p. 198,
t. 9. Dry places along the upper Rio Grande and west to Sonora. (No. 1642; Wright.)

GILIA POLYCLADON (n. sp.): caulibus plurimis subpatulis puberulis inferne nudiusculis apice
foliosis cymoso-capitatis ; foliis oblongis hirsutis pinnatifido-incisis segmentis oblongis plerumque
integris vel 1-2-dentatis ; calycis dentibus spinuloso-acuminatis; corolle tubo calyce subeequali,
laciniis oblongis; loculis ovarii biovulatis. Stony hills near El Paso, March. Annual, stems
4—8 from one root, slender terete, somewhat spreading, simple and mostly naked, except at the
summit, where they branch into a leafy cymose tuft. Leaves mostly radical, about an inch
long, pinnately cut into 9-11 oblong spreading lobes, which are mostly simple. The leaves
of the stem are similar to the radical, only they are smaller. Fructiferous calyx as long as the
capsule. Corolla white, with a tinge of rose-color. Allied to G. inconspicua.

GILIA ACHILLEJEFOLIA, Benth. l. c. 311. San Isabel, California, May ; Thurber.

GILIA CAPITATA, Dougl. in Bot. Mag. t. 2698; Benth. l. c. Common in most parts of Cali-
fornia, from Oregon to San Diego, usually not far from the coast.

GiLrA MULTICAULIS, Benth. l. c. Near San Diego, March; Parry. Perhaps only a variety of
the last.

GILIA TRICOLOR, Benth. l. c. Napa county, California ; Thurber.

GHLIA INCONSPICUA, Dougl. in Bot. Mag. t. 2883; Benth. l. c. Sandy and stony places, banks
of rivers, from the Rio Grande, particularly near El Paso, westward along the Gila to Cali-
fornia.

Gira mncisa, Benth. l. c. p. 312. Central and western Texas to the Rio Grande, also in New
Mexico, Chihuahua, and Neuvo Leon. Plant 12-18 inches high. It appears to be both
annual and biennial. Flowers white. The radical leaves often form a cluster, and are much
less cut than the stem leaves.

Gitta RIGIDULA, Benth, l. c. Hill sides and rocky ravines, western Texas, New Mexico, and
Sonora, March— May. (No. 1645, Wright.) Perennial. Plant 4-10 inches high, branching
from the base, viscidly pubescent or almost glabrous. Leaves mostly simply pinnatifid, with
5-7 distant rigid and pungent segments, which vary from oblong-lanceolate to very narrowly
linear. The flowers are nearly three-fourths of an inch in diameter. Corolla bright blue,
yellow in the throat. Cells of the ovary with several ovules.

GILIA MULTIFLORA, Nutt. Pl. Gamb. in Journ. Acad. Phil. (n. ser.) 1, p. 154. Hill sides near
the Copper Mines, New Mexico, August; Bigelow. Sonora and Chihuahua, September; Schott.
(Nos. 1646 and 1647, Wright: the latter with the tube of the corolla longer.) The stem rarely
branches from near the root, except when the top has been injured.

Gita AGGREGATA, Spreng. Syst. 1, p. 626. ©. pulchella, Dougl.; Hook. Fl. Bor.- Amer. 2, p. 74.
Cantua aggregata, Pursh, Fl. 1, p. 147. 了 avines and rocky banks of the Rio Grande, parti-
cularly near the Cibolo river; also near the Copper Mines, July—September. (No. 1650 and
1651, Wright.) A very ornamental plant. We have restored the older specific name of Pursh.

GILA LONGIFLORA, G. Don, Gard. Dict. 4, p. 245; Benth. 1. c. Cantua longiflora, Torr. in
Ann. Lyc. N. York. 2, p. 221 & in Sitgr. Rep, p, 165, t. 7. Common in western Texas, New

BOTANY。 14

Mexico, Chihuahua and Sonora; flowering throughout the spring and summer. (No. 509,
1648 and 1649, Wright.)

GILIA DIANTHOIDES, Endl. Atakt. t. 29. Dry hills near San Diego, California, February نز‎
Parry. Coronados Islands, California, May ; Thurber.

GiLrA 2101010314, Benth. l. c. Var. PARVIFLORA : floribus multo minoribus ; corollis inexpansis.
Cook's spring, and near Frontera, Texas, March—April; Bigelow, Wright. About 6 inches
high. Leaves palmately 3-parted to the base; segments subulate and somewhat rigid. Corolla
much smaller than in the Californian plant, and it does not seem to expand. In other respects
I can find nothing to distinguish it. "There are from 20 to 25 ovules in each cell of the ovary.

GILIA PHARNACEOIDES, Benth. l. c. Near the summit of the mountains east of San Diego,
June; Parry.

GILIA AUREA, Nutt. Pl. Gamb. l. c. p. 155, t. 32. Copper Mines, New Mexico, April—May ;
Parry. Journado between Tucson and the Rio Gila, March; Parry. Ojo de Vaca, Chihua-
hua; Thurber.

GILIA LUTEA, Steud. l. c.; Benth. l. c.; Bot. Mag. t. 4735. Mountains east of San Diego, June;
Parry.

GILIA ANDROSACEA, Steud. l. c.; Benth. l. c. Napa county, California, March; Thurber.

GILIA DENSIFLORA, Benth. l. c. Grassy places near Monterey, California; Parry. Not
sufficiently distinct from G. grandiflora,

Gira CALIFORNICA, Benth. l. c. Leptodactylon Californicum, Hook. & Arn. Bot. Beech. p.
369, ¢. 89. Near Santa Barbara, California; Parry. This species is decidedly shrubby. Dr,
Antisell found it growing at Santa Inez, 3-5 feet high.

PoLEMONIUM CŒRULEUM, Linn.; Hook. Fl. Bor.-Amer. 2, p. 11. Banks of the Mimbres, New
Mexico, October, (in fruit); Bigelow. Stem 3 feet high, and, as well as the leaves glabrous.
Segments of the leaves 17-21, lanceolate, acute, about an inch long. We find among our
numerous specimens of this polymorphous species, some that accord very well with our New
Mexican plant.

工 GsELIA GLANDULOSA, G. Don, l. c. p. 248. Hill sides near Mt. Carmel, Chihuahua; Dr.
Parry. Neuvo Leon; Dr. Edwards. Dr. Gregg found it near Saltillo, Coahuila.

Nama DICHOTOMA, Choisy, Desc. Hydrol. p. 19; & in DC. Prodr. 10, p. 182. Sandy prairies
and along water courses, western Texas and New Mexico from Doña Ana to the Gulf, and west-
ward throughout the Mexican States to Sonora and California. (No. 495, 1585 and 1586,
Wright.) Very much branched, spreading or assurgent. Flowers pale purple, yellowish in
the throat. Our plant resembles a Chilian specimen of N. dichotoma received from Dr. Arnott
(which is part flowering), but differs from the description of Choisy in the corolla being half as
long again as the calyx.

Var. PARVIFOLIA: caule tenui laxiuscule ramoso ; foliis (semiuncialibus) obovatis obtusis basi
in petiolum brevem attenuatis; floribus solitariis geminisque, pedicellis calyce dimidio longiori-
bus. Santa Rosa, Chihuahua, January; Bigelow. Monterey, Neuvo Leon; Dr. Edwards and
Major Eaton. Annual. Stem very slender, dichotomously branching, purplish. Lower leaves
about half an inch long, abruptly narrowed at the base into a petiole which is less than half
thelamina; upper leaves 3-5 lines long. Flowers nearly as in the larger variety.

٣۳ص‏ کت تن تا[

148 l UNITED STATES AND MEXICAN BOUNDARY.

Nama Jamatcensis, Linn. Sp. p. 327; Choisy, l. e. San Antonio, Texas; Thurber. Sonora
and Chihuahua; Schott, Parry. It is No. 316 of Drummond’s 2nd Texan Collection.

ERIODYCTION CALIFORNICUM, Benth. Bot. Sulph. p. 35; Choisy in DC. Prodr. 10, p. 185.
Wigandia Californica, Hook. & Arn. Bot. Beech. p. 364, t. 88. Borders of the Lower Gila and
on the mountains east of San Diego, California; Major Emory. Near Monterey and in other
parts of California; Parry. A shrubby plant, commonly 3-5 feet high. The leaves are
variable in breadth and toothing: one of the narrow-leaved forms being E. angustifolium,
Nutt. The flowers are rather showy and of a light purplish-blue color. The plant hasa strong
terebinthine taste, and abounds in aresinous matter which sometimes exudes so copiously from the
stalks and leaves that in drying, the specimens stick firmly to each other and to the paper.
The natives of California make an infusion of the leaves and use it as a tonic.

ERIODYCTION TOMENTOSUM, Benth. l. c. E. crassifolium, Benth. l. c. Sandy fields around San
Diego, June; Parry, Thurber. This is a taller species than the preceding, growing from 6-8,
and sometimes even 10 feet high. Like that, it is variable in the form and toothing of the
leaves, and we have no hesitation in uniting the two species of Bentham here quoted. We
have specimens that are intermediate, and Dr. Parry informs me, that he has seen them in
California passing into each other.

FOUQUIERIACEZ.

FOUQUIERIA SPLENDENS, Engelm. im Wisliz. N. Mex. p. 98; Gray, Pl. Wright. 1, p. 85, & 2,
p. 63. Gravelly hills on the Rio Grande, from El Paso to the great cañon 60 miles below,
April—May.

CONVOLVULACEAE.

CONVOLVULUS LOBATUS, Engelm. & Gray, Pl. Lindh. p. 44. C. hastatus, Nutt. in Trans. Amer,
Phil. Soc. (n. ser.) 5, p. 194, non T'hurb. C. Nuttallii, Torr. in Emory’s Hep. p. 149. 8
and ravines; common in western Texas and New Mexico, along the Rio Grande ; flowering
through the season. Cañon of Guadalupe, Sonora; Capt. E. K. Smith. Near the next species.

CoNvoLvuLUS HERMANNLE, Herit.; Choisy, l.c. River banks and ravines; Presidio Falls, Rio
Grande to Eagle Pass, March—November ; Schott, Bigelow.

CONVOLVULUS CALIFORNICUS, Choisy in DC. Prodr. 9, p. 405. Hillsides near Monterey, Cali-
fornia, May ; Parry.

QUAMOCLIT COCCINEA, Moench; Choisy, l. c. p. 335. Magdalena in Sonora, Thurber. Copper
Mines, August, (fl & fruit); Bigelow. (Wright, No. 1611.) The leaves in Dr. Bigelow’s
specimens are deeply 3-parted ; the lateral divisions more or less angularly lobed at the base.

CALYSTEGIA septum, BR. Br. Prodr. p. 483; Choisy, l. c. p. 433. Near San Diego, California,
May; Thurber. C. Maximiliana, Nees, in Maximil. Trav. seems to be only a variety of this species.

CALYSTEGIA SOLDANELLA, R. Br. Prodr. p. 483; Choisy,l. c. Seabeach, Monterey and other
places along the coast of California.

BATATUS LITTORALIS, Choisy in DO. Prodr. 9, p. 331. Convolvulus obtusilobus, Micha. FT.
1, p. 139. Mouth of the Rio Grande and coast of the Gulf of Mexico, May ; Schott.

IPOMEA PANDURATA, 21007. Choisy, l. c. p. 381. Wet places, near running water; western
Texas, Oct.; (fl. & fr.); Bigelow. Leaves all entire and heart-shaped. Sepals varying from
oblong to ovate, and from very obtuse to rather acute and mucronate.

IpoM@A TENUILOBA (n. sp.): glabra; caule volubili ; foliis petiolatis pedatis lobis 5-7 fili-
formibus integris; pedunculis unifloris petiolo subequalibus; sepalis oblongo-lanceolatis acutis,

BOTANY. 149

corolla (24 unciali) tubulosa, brevi-5-loba ; capsula globosa glabra. Hills and rocky places near
Puerto de Paysano, western Texas, September; Bigelow. (No. 1617, Wright, is a variety
with the segments of the leaves broader.) Stem several feet long, twining around other plants.
Segments of the leaves 1-2 inches long, usually not more than half a line wide. Peduncle
with 2 subulate bracteoles at the summit, thick and mostly recurved; the pedicel about the
length of the peduncle. Tube of the corolla trumpet-shaped, more than two inches long ; the
limb rose color.

IPOMŒA HETEROPHYLLA, Orfeg. Pharbitis heterophylla, Chois. in DC. Prodr. 9, p. 344. Rocky
hills and prairies along the Rio Grande ; also on the Rio Limpio and Devil's river. (Nos. 508,
509, a very hairy form, and 1613, Wright.) Sepals an inch long. Corolla more than three
inches long, pale rose color.

1۶010۸ Nin, Roth. Pharbitis Nil, Chois. 1. c. Western Texas; Wright, Nos. 1037 and 1612.
Magdalena, Sonora, October ; Thurber.

IPOMEA 10017015 رش‎ Benth. Pl. Hariw. p. 16 & 345, I. Shumardiana, Torr. in Bot. Marcy's
Rep. p. 291. Santa Cruz valley, Sonora, July; Thurber. **'The prostrate branches are 6-10
feet long, forming large patches which are very conspicuous in the prairies. Flowers opening
in the morning, white with a purple throat," (Zhurber,) limb nearly three inches in diameter.
This differs from Captain Marcy’s plant in the larger flowers, but not in other respects. After
comparison with an original specimen of I. longifolia, I think it must be united with that
species,

Ipomm@a Pzs-Carma, Sweet; Choisy, l. c. p. 349. I. orbicularis, FU. Sk. 1, p. 251. Sandy
shores, Brazos Santiago, Texas, May ; Schott.

Ipoma@a COMMUTATA, Roem. & Sch. Syst. 4, p. 228. I. trichocarpa, EU. Sk. 1, p. 258? In
cultivated grounds. Rancho San Christobel, lower Rio Grande, May; Schott. Our specimens
agree with Berlandier’s No. 1931, quoted by Choisy. The species seems to be perennial.
The capsule is smooth.

IPOMGEA SINUATA, Orteg. ; Choisy, l. c. p. 362. I. dissecta, Pursh, non Willd. Convolvulus
dissectus, Linn. ; Miche. Fl. 1, p. 139. In shady places along the Rio Grande, from the Pre-
sidio down to Eagle Pass; August—November. A widely spread species. We have it from
Monterey, Mexico, collected by Dr. Edwards and Dr. Gregg. It occurs also in the West Indies
and as far south as Brazil.

Ipom@a LACUNOSA, Linn. ; Choisy, l. c. p. 378. Alluvions of the Rio Grande, September,
October.

IpoM@A COSTELLATA (n. sp.): herbacea, glabriuscula, ramosa; foliis petiolatis pedatim 7-9-
partitis, segmentis linearibus vel spathulato-linearibus integris ciliolatis ; pedunculis 1-3-
floris petiolum paullo superantibus ; sepalis oblongis acutis exterioribus medio subcarinatis vel
ruguloso-muricatis ; corolla (semi pollicari) tubulosa brevilobata ; capsula glabra. On the Rio
Grande, from the mouth of Pecos to El Paso, and near the Copper Mines of New Mexico; July-
October. (Nos. 505 and 1615, Wright.) Annual. Stems, 1-5 feet long, prostrate or climbing,
slender. Leaves 1-13 inch long, divided nearly to the base into 7-9 mostly very narrow lobes د‎
petiole about as long as the limb. Pedicels thickened. Calyx glabrous, the exterior sepals
more or less conspicuously carinate or even winged ; the keel rugose-undulate, or sometimes
muriculxte. Corolla scarcely half an inch long, pink, the border with 5 short lobes. Style
undivided ; stigma capitate, two-lobed, and granulate. Capsule sub-globose, two-celled, the
cells two-seeded. Seed hairy. This species is allied to I. Coptica.

5
y origi Re gba اسوه‎

150 UNITED STATES AND MEXICAN BOUNDARY.

[۳0۱۲6۲۸ 31810414 (Cav. Ic. b, p. 52, t. 478, f. 2, ex Choisy, l. c. p. 353): glabra; radice
tuberosa globosa; caule prostrato; foliis subsessilibus palmatis, lobis 5-7 integris anguste
linearibus vel lobo medio lineari-lanceolato ; pedunculis unifloris brevibus (2-4 lin.); sepalis
lanceolatis obtusiusculis, dorso muriculato ; corolla tubulosa (unciali purpureo-coccinea) breviter
5-loba; capsula glabra. Sonora, Mexico; Thurber, September. (No. 1616, Wright.) Root
a roundish tuber from half an inch to an inch or more in diameter. Stem a span long, slender.
Leaves about an inch long, most of the segments scarcely half a line wide. Corolla almost
trumpet-shaped.

IpoM@A LEPTOTOMA (n. sp.): annua; caule prostrato (vix volubili) glabro; foliis petiolatis
pedatis glabriusculis, lobis 5-7 linearibus ciliolatis integris, lobo medio elongato; pedunculis
1-2-floris petiolo multo longioribus ; pedicellis calycibusque hispidulis ; sepalis lanceolatis, apice
attenuatis acutissimis ; corolla campanulato-infundibuliformi (14 unciali. Near Santa Cruz
valley, Sonora, September ; Thurber. (No. 1614, Wright.) Stem branching from the root;
the branches 1-14 foot long, somewhat twining. 了 Petioles 2-4 lines long. Leaves deeply
divided in a pedate manner, the lobes scarcely a line wide, the middle lobe usually almost twice
the length of the lateral ones; uppermost leaves often entire. Peduncle 1-2 inches long ; the
pedicels scarcely half an inch. Sepals about 4 lines long. Corolla with a bright reddish
purple limb and a pale tube.

1۳02۲6۲۸ FASTIGIATA, Sweet ? ; Choisy, l. c. p. 380? On the banks and in the bed of the San
Pedro, Western Texas ; September, (fl. & fr.) ; Bigelow. Seems to differ in the sepals being
only mucronate and scarcely aristate.

EvoLvuLUs AISINOIDES, Linn. Sp. 392; Choisy, l. c. p. 447. Rocky hills, near Camp Bache,
July; Bigelow. Corallitas, Chihuahua, dug.; and Sonora, Mexico; Thurber. No. 1619,
Wright, is a form with narrow leaves.

Var. HIRTICAULIS: caule hirsuto, pilis longis patentibus; foliis ovato-oblongis, obtusiusculis.
Brazos, San Jago, Texas, and on the Rio Grande near the San Pedro river, May—September ;
Schott. Western Texas, Wright. Monterey, Mexico; Dr. Edwards.

Var. ANGUSTIFOLIA: caule hirsuto, pilis sparsis longis patentibus; foliis lineari-lanceolatis,
acutis. Near the Great Carion of the Rio Grande, August; Parry.

EvoLVULUs? OVALIFOLIUS (n. sp.): undique velutino-sericeis ; caule prostrato e basi ramo-
sissimo ; foliis ovatis (pollicaribus 6-8 lin. latis) obtusiusculis crassiusculis, basi rotundatis vel
subcordatis ; floribus solitariis axillaribus brevissime pedicellatis ; sepalis late ovatis mucronatis ;
eapsulis monospermis. On the Rio Grande, below San Carlos, October; Parry. The specimens
are in fruit only.

EvoLvULUS HOLOSERICEUS 8 OBTUSATUS, Chois. l.c. E. sericeus, Nutt. Gen. 1, p. 114, non Swartz.
E. discolor, Benth. Pl. Hartw. p. 6. Rio Grande, near the San Pedro river, and near Yorktown,
October ; Schott. A more densely cespitose form, with shorter branches, occurs near the Copper
Mines, June; Bigelow. Monterey, Neuvo Leon; Dr. Edwards. Cerralbo; Gregg. The
pubescence, as in the next species, is reddish, at least in dried specimens ; the peduncles are only
one-flowered ; the sepals are scarcely two lines long, and the leaves are often more than an inch
in length. It may prove to be a distinct species. The peduncles of the early flowers are some-
times nearly as long as the leaves.

EvoLvuLUs ARGENTEUS, Pursh, Fl. 1, p. 187; Choisy, l. c. E. pilosus, Nutt. Gen. 1, p. 174, &
in Trans. Amer. Phil. Soc. n. ser. 5, p. 195, non Lamarck. E. Nuttallianus, E. & Schult.
Gravelly hills, near Rock Creek and Van Horne's Wells, June—July; Bigelow, Wright.
Copper Mines, N. Mexico; Thurber. Chihuahua; Gregg. It is No. 668 of Fendler's N. Mexico

BOTANY. 151

Coll. A common species on the upper Arkansas. The specific name of Pursh is inappropriate,
for the hairyness is rusty-colored, and not silvery. Perhaps E. holocericeus is not distinct.

DicHonDRA REPENS, Forst. Gen. p. 39, 1. 20; Choisy, l. c. p. 451. Var. CAROLINENSIS, Choisy, l. c.
D. Carolinensis, Michz. Fl. 1, p. 36. Rock Creek and Copper Mines, May—July ; Bigelow.
Santa Cruz Mountains, Sonora; Zhurber. The leaves are commonly larger than in the plant
of the southeastern States.

DicHONDRA ARGENTEA, Willd. Enum. Hort. Ber. p. 297; Choisy, l. c. Rocky hills on the Rio
Grande, below El Paso, June—August; Parry, Bigelow. Chihuahua; Thurber. (Wright,
No. 1621.)

Cressa CnETICA, Linn. Var. TRUXILLENSIS, Choisy, l.c. p. 440. C. Truxillensis, H. B. ۰
Nov. Gen. & Sp. 3, p. 119. Low and sandy places. Laguna de Lache, Solado, Mexico, April ;
Bigelow. On the Gila, Sonora, June; Thurber. (No. 1618, Wright.) Saline soils, San Diego,
California; Parry. Bolson de Mapini, Mexico; Gregg. Differs from our European specimens
of 0. Cretica, in being more upright, with considerably larger leaves and flowers, and in the
linear-oblong (not roundish-ovate) anthers. The fruit, too, is mostly one-seeded. Still we
follow Choisy, in regarding it as but a variety C. Cretica.

Cuscuta. Dr. Engelmann, of St. Louis, has long been occupied in preparing a monograph
of this genus, which will be published on his return from Europe. Although I have his
determinations of a large proportion of the species collected in the Mexican Boundary Survey,
I think it better to wait until his monograph appears, and thus to have the advantages of his
latest researches, rather than publish my own observations on this difficult genus.

SOLANACEAE.

Soranum J AMESIT, Torr. in Ann. Lyc. N. York, 2, p. 227. Gray, in Sill. Jour. n. ser. 22, p. 284 ;
On the upper Rio Grande; west to the Copper Mines of New Mexico and the Zuni
Mountains. Rocky places, Puerto de Paysano. Tuber about the size of a marble. The
specimens collected by Dr. James, in Long’s Expedition, were imperfect and erroneously described
as annual,

SoLANUM FENDLERI, Gray, l. c. Near the Copper Mines, New Mexico; Bigelow. Near S.
tuberosum, but differs in the segments of the leaves being nearly uniform in size; usually the
lowest pair only being very small. The tubers, in the wild plant, are seldom more than half
an inch in diameter.

SOLANUM TRIFLORUM, Nutt. Gen. 1, p. 128. On the upper Rio Grande. (No. 675 Fendl. Pl.
N. Mex.) This is more common on the tributaries of the Red, Arkansas, and Missouri rivers.

SOLANUM NODIFLORUM, Jacq. lc. Rar. 2, t. 326, ex Dunal in DC. Prodr. 13, pars 1, p. 46.
Western Texas and on the Rio Grande from the mouth of the Limpio downward, June—July.
(No. 524, 892 and 1904, Berlandier.) Perhaps only a variety of S. nigrum; and S. crenato-
dentatum, Dunal, l. c. (at least the plant of Berlandier) is probably only another form of the
same species.

SorANUM Doveras, Dunal, l. c. Moist places, San Luis Rey, California; Parry. Plant 8-10
feet high ; flowers bright blue. Dr. Parry says that the stem is somewhat woody at the base,
and that the berries are eaten by children; but it has very much the appearance of the last
species,

SoLANUM UMBELLIFERUM, Esch. in Mem. St. Petersb. 10, p. 280; Torr. in Whipp. Rep. p. 127.
8. Californicum, Dunal, l. c. p. 86. S. genistoides, Dunal, l. c. p. 85. S. Menziesii, Dunal,
l. c. p. 159. In California; Parry. In most parts of California; but more common near the

152 UNITED STATES AND MEXICAN BOUNDARY.

sea. It is extremely variable in the form and size of the leaves, as well as in the degree of
pubescence. ب‎ Being a hardy, suffruticose species, and bearing a profusion of handsome blue
flowers throughout the season, it deserves a place in our gardens.

SOLANUM LINDHEIMERIANUM, Scheele in Linnea, 21, p. 766. S. triquetrum, B. Dunal, l. c. p. 154.
Sandy and shady places, central aud western Texas, and along the Rio Grande, from the
mouth of the Pecos, downward ; flowering throughout the season. (No. 1591 and No. 536, the
latter a narrow-leaved form, Wright; No. 481, Lindheimer; No. 154 and 1416, Berlandier.)
Variable in the size and breadth of the leaves, as wellas in the length of the auricles. "This
is, perhaps, too near S. triquetrum. Dr. Engelmann formerly distributed the plant under the
manuscript name of S. dulcamaroides, but he published no description of it.

SOLANUM ELZAGNIFOLIUM, Cav. Ic. t. 243; Dunal, l. c. p. 290. S. flav;dum, Torr. in Ann. Lyc.
N. York, 2, p. 221. S. Texense, Engelm. & Gray, Pl. Lindh. 1, p. 19. S. Roemerianum,
Scheele in Linnea. 21, p. 767. S. Hindsianum, Benth. Bot. Sulph. p. 39? Texas and New
Mexico, especially along the Rio Grande and westward to California. (No. 1590, Wright.
No. 659, 665 and 2069, Berlandier.) S. Texense differs only in being destitute of prickles ;
but intermediate forms are common. Dr. Gregg, who found this plant in all the Mexican
States that he visited, remarks, in his notes, that the natives, who call the plant Trompillo, use
the fruit for curdling milk, and likewise as a sudorific and sternutatory.

SOLANUM ROSTRATUM, Dunal, Solan. p. 234, & in DC. Prodr. l. c. S. heterandrum, Pursh, Fl.
2, p. 131, t. T. S. Bejariense, Moricand ; Dunal, l. c. Androcera lobata, Nutt. Gen. 1, p. 129.
Nycterium lobatum, Sweet. N. luteum, Donn; Torr. l. c. Common in Texas and New Mexico,
extending westward through the neighboring Mexican States. Perhaps not distinct from ۰
cornutum.

SOLANUM CITRULLIFOLIUM, A. Braun in Ind. Sem. H. Frib. 1849, fide A. DC. Prodr. 13, pars 1,
p. 682. S. heterodoxum, Jacq. Ecl. Pl. Rar. 2, t. 103. Plains near Puerto de Paysano and
near the Limpio; July—September ; Bigelow. Flowers large, violet, an inch in diameter. The
last three species belong to a remarkable group (Cryptocarpum, Dunal,) which Nuttall regarded
as a proper genus, (Androcera.) It is chiefly distinguished by the fruit eae: completely
inclosed in enlarged tube of the calyx.

SOLANUM HETERODOXUM, Dunal, l. c. p. 331? On the Rio Grande, below Presido del Norte ;
August; Parry. Corallitas, Chihuahua; Thurber. Differs from the last in the به سي‎
hispid stem and branches, and in the much smaller flowers.

SOLANUM VERBASCIFOLIUM, Linn. Sp. p. 263; Dunal, l. c. p. 114. Near Monterey, Neuvo
Leon ; Dr Edwards, Dr. Gregg. Between Victoria and Tamaulipas ; Berlandier, No. 806. A
tall, suffruticose species ; common in the warmer parts of America and Asia. Dr. Gregg says
that the Mexicans call it Yerba de San Pedro, and that they use the plant made into a poultice
as an application to ulcers and boils.

CAPSICUM MICROPHYLLUM, Dunal, l. c. p. 421. Western Mexico, Chihuahua, Neuvo Leon, etc. و‎
common. It is used, like other red peppers, by the Mexicans, who call it Chipatane. The spe-
cific name is not appropriate.

PHYSALIS LOBATA, Torr. in Ann. Lyc. N. York, 2, p. 226. Solanum luteiflorum, Dunal, l. c.
p. 64. Borders of the Rio Grande, from New Mexico to Eagle Pass, March—October. (No.
1595, Wright.) Dr. James collected this plant only in the early state, without fruit, except à
single fructiferous calyx. We have, however, from the valley of the Rio Grande, numerous
specimens of what is clearly the same species in a mature state, and which is the same as No.

BOTANY, 0

1604 of Wright's Collection. The stem is 12-18 inches long, prostrate, and much branched,
The leaves vary from coarsely sinuate-toothed to nearly entire. Flowers solitary, on pedicels
which are much longer than the petioles. Corolla campanulate-rotate, purple, half an inch or
more in diameter. Fructiferous calyx nearly as broad as long and much larger than the berry.
Seeds irregular in outline, less compressed, and thicker on the edge than is usual in this genus;
the testa cellular and spongy.

Puysatis PUMILA, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 193; Var.? Sonora: glabra,
foliis lanceolatis integris. Fronteras, Sonora; June, Thurber. About a foot high, apparently
erect, branching towards the summit Leaves solitary, 2-3 inches long, and 5-7 lines wide,
attenuated at the base into a petiole. Flowers solitary, on pedicels which are shorter than the

petioles. Segments of the calyx as long as the tube, triangular-lanceolate, acute. Corolla cam-
panulate, yellowish, immaculate.

PHYSALIS LANCEOLATA ; Michx. Var.? SPATHULXFOLIA: prostrata dichotome ramosa minute pubes-
cens; foliis spathulatis vel oblongo-spathulatis obtusis basi attenuatis solitariis vel geminis ;
pedunculis solitariis petiolo sublongioribus erectis ; calycibus campanulatis dentibus tubo duplo
brevioribus ; corolla rotato-campanulata purpureo-maculata. On the sea beach near the mouth of
the Rio Grande, May ; Schott. We have a viscidly stellate-pubescent form, collected by Drum-
mond in southern Texas, probably on the shore of the Gulf.

了 HYSALIS LONGIFOLIA, Nutt. l. c.? ; Dunal, l. c. Alluvions of the Rio Grande, 35 miles below
San Elceario, and near the Copper Mines, June— July ; Bigelow. Lower Rio Grande; Schott. We
have also specimens collected by Lieut. Abert, on the upper Canadian, in 1846. Our plant
differs from the descriptions given by Nuttall and Dunal in scarcely any respect except the nar-
rower leaves. We have, however, only the upper part of the plant, on which the leaves
(including the petiole) are rather oblong-lanceolate than ovate-lanceolate.
about 4 inches long. The root, according to Nuttall, is perennial.

了 PHYSALIS ALKEKENGI 8 DIGITALIFOLIA, Dunal, l. c. p. 438. Along the Rio Mimbres, New
Mexico, May; Thurber. Near the Copper Mines; Bigelow. Sierra del Pajarito, Sonora;
Schott. Probably, as Dunal suspects, a distinct species.

了 PHYSALIS MOLLIS, Nutt. l. c... Western Texas, and near the Copper Mines; Thurber. Nos.
1599 and 1600, Wright, seem to be only forms of this species; and 1597 a smoother form of
the same. We have also specimens collected near Monterey. Flowers dull yellow, with dark
purple spots at the base. It is near the preceding species.

PHYSALIS CARDIOPHYLLA (n. sp ): perennis; caule petiolisque minute puberulis ; foliis 7
solitariis late cordatis grosse sinuato-dentatis longe petiolatis glabriusculis utrinque ET :
pedicellis petiolo longioribus ; calyce campanulato, dentibus tubo dimidio brevioribus ; corolla
(lutea) infundibuliformi-rotata immaculata. Sonora, and California, desert of the Colorado;
flowers throughout the season; Schott. Stem 12-18 inches long, branching from the root
ascending or prostrate. Leaves 3-14 inch long, and nearly as broad as long, slightly succu-
lent, sometimes nearly entire; the petiole about as long as the lamina. Pedicels mostly longer
than the petioles. Calyx 2 lines long, the teeth triangular and acute. Corolla half an inch in
diameter. Anthers equal, yellow. Fructiferous calyx ovate, an inch and a quarter long. Fruit
the size of a small cherry. Seeds orbicular-reniform, much compressed, with a nearly even
testa.

Some of them are

20 k

s AU. mm” m
napa

ics ape

۱

154 UNITED STATES AND MEXICAN BOUNDARY.

Several other species of this difficult genus are in the Mexican Boundary Collection, but they
cannot at present be determined satisfactorily, either from the imperfection of the specimens, or
for want of the means of comparison.

MARGARANTHUS SOLANACEUS, Schlecht. Ind. Sem. Hort. Hal. 1838, p. 8, & Hort. Hal. p. 1, t.
1; Dunal, l. c. p. 453. Santa Rita del Cobra, New Mexico, July—August; Bigelow. (No.
1603, Wright.) No.1220 of Coulter's Mexican Collection. Our New Mexican specimens and those
of Mr. Wright are considerably smaller than the plant represented by Schlechtendal, but his
figure was taken from a cultivated specimen. Coulter’s plant agrees exactly with the figure.

Lycrum PALLIDUM, Miers, IU. S. Amer. Pl. 2, p. 108, t. 67, C. Gravelly hills near the Rio
Cibolo of the Rio Grande ; also in Chihuahua and near the Copper Mines, New Mexico, April—
July ; Bigelow. (No. 160, Fendler.) It wasalso found by Frémont in 1844, on the Rio Virgen, a
branch of the Colorado, western New Mexico. A shrub 3—4 feet high. Flowers greenish, larger
than in any other North American species of this genus. It is remarkable for the loose cam-
panulate calyx, the broad obtuse divisions of which are longer than the tube.

LyoruM STOLIDUM, Miers, l c. p. 126, 2. 71, C. On the Rio Grande, from the Presidio down
to Laredo, May; Schott. (Nos. 540 and 1610, Wright.)

LycruM BARBINODE, Miers, l. c. p. 115, t. 68, E. On the upper Rio Grande and westward to
the Rio Grande, March—April. A shrub about 5 feet high.

Lycium BERLANDIERI, Dunal im DC. Prodr. 13, pars 1, p. 521. Borders of the Rio Grande,
from El Paso to Eagle Pass, March—April. Nos. 1604 and 1608, Wright, seem to be hardly
distinct. A branching shrub 2-6 feet high. Flowers pale purple.

DATURA METELOIDES, DC. MSS. ; Dunal, l. c. p. 544. Western Texas, Chihuahua, Sonora,
and other Mexican States; common.* (No. 1606, Wright.)

* ٠٤ This fine Datura, which has all the appearance of being indigenous in New Mexico and the adjacent provinces of Mexico,
must be the D. meteloides named by De Candolle, and described by Dunal in the Prodromus from one of the drawings by
Mocino and Sesse. But the distinctions between it and D. Metel are not well stated ; nor did Dunal himself identify the specie
in the specimens from Berlandier’s collection, No. 2156, gathered at Victoria, Tamaulipas, but referred them to D. Metel,
and, in consequence, Alphonse De Candolle, in the Geographie Botanique, 2, p. 735, allows them to have considerable weight in
favor of the American origin of D Metel. The only reason for doubting our New Mexican plant to be De Candolle's D. mete-
loides is, that Dunal described it as having a * corolla 1@-dentata,’ which our plant has not. But the slight folds answering to
the sinuses may have been exaggerated and misunderstood. From seeds gathered by Mr. Wright this species has been culti-
vated in the Cambridge Botanic Garden for several years, for the past two years by the side of Datura Metel. The leading
diagnostic characters of the two may be expressed, as follows :

** D. Meret, Linn : viscidulo-pubescens ; caule subvilloso و‎ corolle tubo ultra calycem sensim modice dilatato, limbo 10-
dentata ; basi calycis persistente subcapsula ampla.

“ D. METELOIDES, DC.: pruinoso-glaucescens, vix puberula; flore suaveolente ; corolla supra calycem cylindricum valde
dilatata, limbo eximie 5-dentato ; basi calycis subcapsula persistent gusta; foliis integerrimis.

** D. meteloides, although with us a lower plant than D. Metel, te i more dios y ; ; its corollas (tinged with bluish purple) are
more dilated-funnelform and larger, measuring 5 or 6 inches in diameter of the limb, and often 8 inches in length ; and what
may be called the limb is on each side equal in length to the part of the tube which projects beyond the calyx. In D. Metel
the throat is much narrower, and the limb proportionally smaller, say 4 or 41 inches in diameter. In D. meteloides there are
no teeth or projections whatever at the sinuses of the corolla, nor does the slight plaiting there give the appearance of teeth ; but
the five proper teeth are very salient, narrowly subulate, and half an inch in length. "The capsule is nearly glabrous, and with
— t" than the cultivated D. Metel, but otherwise similar, as are the seeds; the persistent and reflexed base of the

x, however, is much smaller. The herbage has somewhat of the disagreeable odor of D. Metel, but the flowers are sweet-
scented.” A. Gray.

BOTANY。 155

Datura Tuowasrt, Torr. Bot. Pacific R. Road Rep. 5, p 362. Borders of the Colorado, near
Fort Yuma ; Schott. Mr. Thurber collected at Coratlitas in Chihuahua, a Datura resembling
this species, but with the capsule armed with only a few (about 20) very long and rigid slightly
pubescent prickles. Both may be extreme forms of D. Stramonium.,

NICOTIANA PANDURATA, Dunal, l. c. p. 569. Alluvions of the lower Rio Grande, Western
Texas, and in the Mexican States on the west. Not very distinct from N. Roemeriana, Scheele.
No. 630 and 3000 Berlandier's Coll. (from Matamoras) we think should be referred here.

PETUNIA PARVIFLORA, Juss. Ann. Mus. 2, p. 216, t. 47; Miers Ill. t. 23, Dunal in DO. Prodr.
13, pars 1, p. 575. Leptophragma prostrata, Benth. in Dunal, l. c. p. 518. Salpiglossis
prostrata, Hook. & Arn. Bot. Beech. p. 153. Borders of the Rio Grande, lower Rio Grande
and in the Mexican States westward to California. (No. 539 and 1587, Wright. No. 215 and
1475, Berlandier.)

NIEREMBERGIA (LEPTOGLOSSIS) VISCOSA (n. sp.): viscoso-pubescens ; foliis elliptis-oblongis acutius-
culis basi angustatis, inferioribus longiuscule petiolatis; floribus subaxillaribus; pedicellis
calyce infundibuliformi-campanulata subeequalibus ; calycis laciniis oblongis acutis tubo dimidio
brevioribus; tubo coroll: elongato gracili apice gibboso.— Rocky hills, mouth of the Pecbs, and
on Devil's river, western Texas; Bigelow. (No. 535, Wright.) Root often annual, but some-
times, apparently, perennial. Stem 6-10 inches high, usually branching from the root.
Leaves 8-10 lines long and 2-4 lines wide. Pedicels often extra-axillary, shorter than the
leaves. Calyx funnelform-campanulate, about four lines long. Corolla nearly an inch long,
the very slender tube more than twice the length of the calyx, saccate and somewhat gijbous at
the throat; limb purple, more than half an inch in diameter, rather unequally 5-lobed, the
lobes roundish and entire. Stamens inserted in the succate throat of the corolla and included,
two of them with short curved filaments and large roundish 2-celled anthers, 2 others with
straight filaments and much smaller 1-celled anthers, the 5 stamen a mere abortive filament.
Ovary ovate acute; style elongated and filiform; stigma dilated and somewhat petaloid, 2-lobed
at the base, truncate and 2-lipped at the summit. Capsule much smaller than the fructiferous
calyx, roundish ovate. Seeds oblong, a little curved, strongly corrugated transversely and
somewhat spirally. Embryo moderately curved.

WITHANIA ? SORDIDA, Dunal, l c., p. 456. Western Texas from New Mexico to the lower -
Rio Grande; near Monterey, Nenvo Leon; Dr. Edwards. Balson de Mapini; Gregg. (Nos.
531, 532, 533, 1596, and 1598, the last a broad leaved form, Wright. No. 676, Fendler, N.
Mex.) Perennial; villous pubescent, the pubescence partly glandular. Leaves 1-1} inch
long. Pedicels 6-10 lines long. Calyx broadly campanulate, villous; corrolla 6 lines in
diameter, dull yellow. Fruit the size of a large pea.

“Wrrnanta? 00800208. Solanum Coronopus, Dun. in DC Prodr. 13, pars 1 p. 64. Along the Rio
Grande and its tributaries, from El Paso to Laredo, April—July. (Nos. 534, 1593, and 1594,
Wright. Nos. 74 and 480, Coll. 1846, and 484, Coll. 1847-8, Lindheim. No. 615, Fendl., N.
Mex. Nos. 666 and 3023, Berlandier. No. 1252, Coult. Mex.) Root annual? Plant roughish
with minute short and thick hairs, which are bifurcate at the summit. Leaves lanceolate, 1-1}
inch long, more or less deeply pinnatifid or merely toothed, the upper part often linear and
entire, Flowers solitary, on slender pedicels which are at length reflexed. Corolla dull yellow,
about 6 lines in diameter. Fruit globose, the size of a large pea, nearly white when mature,
about two-thirds covered with the calyx. This plant is certainly a congener of the last, which
we have followed Dunal in referring doubtfully to Withania. The calyx increases with the fruit,

156 UNITED STATES AND MEXICAN BOUNDARY.

but never encloses it, nor does it become inflated. The corolla is much more rotate than cam-
panulate.

NIEREMBERGIA ANOMALA, Miers in Hook. Lond. Jour. Bot. 5, p. 175, & Ill. 1, t. 20; Dunal, l. c.
p. 588, Leucanthea Roemeriana, Scheele in Linnea 25, p. 250. Bouchetia erecta, DC. MSS.;
Dunal, l. c. Western Texas ; Wright. Near Monterey, Neuvo Leon; Dr. Edwards. (No. 345
Coll. 111, Texas, Drummond.) This corresponds exactly with the figure of Miers, who states
that the Texan plant differs in no respect from the South American N. anomala. Stamens some-
times only 4 and subdidynamous, or when 5 one of them smaller. Seeds roundish, reticulate.

BROWALLIA (LEPTOGLOSSIS) TEXANA (n. sp.): annua, vicoso-pubescens ; caule e basi ramoso
erecto; foliis alternis integerrimis basi in petiolum attenuatis; floribus extra-axillaribus ad apices
ramorum laxe subcymosis ; pedicellis calyce campanulato-tubuloso subinflato subsequalibus; cor-
olla tubo gracili apice subgibboso calyce triplo longiore, limbi laciniis orbicularis subzequalibus.
Near the mouth of the Pecos, September—October ; Bigelow, Pope. (No. 535, Wright.) Plant
a span high, dull green; leaves about three-fourths of an inch long, rather acute. Pedicels 3-5
lines long. Calyx 5-cleft; the lobes ovate and acute. Corolla salver-form ; the tube very slen-
der, 8 lines long, gibbous at the summit; limb flat and somewhat oblique, 6 lines in diameter,
purple. Stamens inserted in the throat of the corolla, didynamous. Capsule globose-ovate,
scarcely one-third the length of the fructiferous calyx ; the valves at length bifid at the summit.
Seeds irregularly oblong, strongly rugous transversely. Embryo a little curved. This plant
clearly belongs to Leptoglossis of Bentham, and is nearly related to L. Schwenkioides. We
think the genus should be united to Browallia. We are also disposed to adopt the views of those
botanists who would remove the tribe Salpiglossideew from Scerophulariaces to Solanacee ; but
we are not prepared to go so far as to unite these plants and certain tribes of the latter family
into an intermediate order. The limits of these orders can not yet be fixed with any degree of
precision.

GENTIANACEAE.

FRASERA SPECIOSA, Dougl. MSS.; Hook. Fl. Bor.-Amer. 2, p. 66, t. 153. Copper Mines, New
Mexico, and near the Rio Mimbres, June ; Bigelow. Capsules slightly compressed, contrary to
the valves ; 40—50-seeded.

Frasera PanRYr (Torr. in Pl. Whippl.. p. 196): caule erecto tereti glabro ; foliis caulinis
oppositis ternisve lanceolatis undulatis, floralibus (bracteis) ovatis pedicellis multo brevioribus ;
sepalis ovatis albo-marginatis ; petalis ovato-lanceolatis sepala subequantibus, fovea lunata soli-
taria, corona obsoleta. Mountains east of San Diego, California, on the eastern slope, June ;
Parry. No. 558, California, Coulter. Stem 2-3 feet high. Radical leaves clustered, the upper
cauline ones mostly ternate, the whorls remote. Flowers numerous, in a terminal panicle nearly
an inch in diameter. Petals greenish white, speckled with purplish linear dots ; the pit or gland
lunate, with the horns pointing upward, fringed with hairs around the margin. Corona a mere
narrow, slightly ciliate border. Fruit not known. Nearly allied to F. Carolinensis, but that
species has the leaves in 4s and 5s, a leafy panicle, linear lanceolate sepals, and roundish-oval
entire rm

CHIRONIOIDES. Gyrandra chironioides, Griseb. in DC. Prodr. 9, p. 44. (TAB. XLII.)
On the Rio Grande, from Doña Ana southward to San Elceario, and westward to the valley of the
Gila. (No. 3191, Berlandier.) Our plant has usually broader leaves than those of Berlandier's
specimens. Var. 8: floribus lateralibus breviter pedicellatis ; corollæ laciniis obtusis. E. Muh_
rop Griseb. l. c., (quoad e Calif.) Dry soils around San Dep and in many other parts

BOTANY. 157

of California. It begins to flower when scarcely an inch high, but at length, in good soil, attains
the height ofa foot or more. The flowers vary greatly in size, from less than an inch to an inch
in diameter. They are of a bright rose color with a yellow centre. We refer here E. Muhlen-
bergii, Benth. Pl. Hartw., apparently a mere dwarf, small-flowered state of the plant, which we
have from several collectors. This species is known in California by the name of Canchalagua,
a bitter tonic of considerable reputation; but E. tricantha is often confounded with it, and
possesses similar virtues. The same name has long been applied to E. Chilensis. Gyrandra
speciosa, Benth. Dot. Sulph. p. 127, t. 45, differs from this species chiefly in the shorter filaments,
and in being more spreading. I have noticed at least in one species that the filaments increase
in length after flowering, as do the tube of the corolla and the style. In authentic specimens of
Berlandier, (whose plant is certainly annual, not as stated by Grisebach, perennial,) the stem is
4-angled, as in all the species of Erythrea. The genus Gyrandra seems to have no characters
°` by which it can be distinguished from Erythreea. The segments of the calyx are somewhat cari-
nate, but not winged as in some genuine Erythrea. The corolla is of the same form in both
genera. The anthers of E. Centaurium, as well as of other species that I have examined, are
as destitute of a connective as are those of Gyrandra.

ERYTHRÆA Trexensis, Griseb. Gent. p. 139, din DC. Prodr. l. رن‎ p. 58 Rocky places on
the Pecos ; Bigelow ; and along the Rio Grande; Schott. Aprii—September.

卫 RYTHRRA 8858105531, Torr. & Gray, Fl. 2, p. —, (ined.;) Torr. in Bot. Marcy’s Rep. p. 291,
۲. 13. E. tricantha, û angustifolia, Griseb. in DC. l. c. 60. Rocky banks of the Pecos and
San Pedro; Bigelow, etc. Sabina creek, Texas; Thurber. (No. 1662, Wright.)

Mene TRICANTHA, Griseb. Gent. p. 146, and in DC. Prodr. 9, p. 60; Benth. Pl. Hartw. p-
322. In various parts of California, especially near the coast. We have from Sir William
Hooker specimens of this plant, collected by Douglas, which agree in all respects with ours.
The lobes of the corolla are not ‘‘ linear and very acute," but lanceolate and rather obtuse.
Grisebach probably drew his description from specimens which were dried without pressure, so
that the lobes of the corolla had become involute and apparently very narrow as well as acute.
After a careful comparison of original specimens of E. tricantha and E. floribunda, (the California
plant of Benth. Pl. Hartweg,) I have little doubt that they are forms of one species. E. flori-
bunda differs only in the broader lobes of the corolla.

GENTIANA DETONSA, Fries. Griseb. in DC. Prodr. 9, p. 101; Torr. Fl. N. York, 2, p. 108, t. 82.
Babacomori to Santa Cruz, in wet places, September; Thurber. (No. 1658, Wright.)

GENTIANA AFFINIS, Griseb. in Hook. Fl. Bor.-Amer. 2, p.57. Hills and rocky places near
the Copper Mines, August—October ; Bigelow. (No. 1657, Wright.)

GENTIANA QUINQUEFLORA, Lam. Dict. 2, p. 643; Griseb. l.c. Western Texas. No. 1659,
Wright.

Eustoma RussELIANUM, G. Don, Gen. Syst. Gard. 4, p. 175; Griseb. in DC. Prodr. 9, p. 51.
Valley of the Rio Grande, etc., in sandy soils; common, May—October ; Thurber. On the
Gila, Sonora; Thurber. (No. 1660, Wright.) Leaves varying from oblong and obtuse to
narrowly lanceolate and acute. The flowers also vary greatly in size and in the proportionate
length of the segments and tube of the corolla Perhaps not distinct from E. exaltatum.

. BABBATIA campestris, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 191. Prairies on the
^ Guadalupe river, Texas, ub ues Weigle. qe. 2568, Berlandier.)

158 UNITED STATES AND MEXICAN BOUNDARY.

APOCYNACEAE.

EcHITES MACROSIPHON (n. sp.): caule erecto suffruticoso; ramis tomentosis; foliis ovatis acutis
vel acutiusculis brevissime petiolatis basi obtusis vel subcordatis supra pubescentibus subtus
albo-tomentosis; pedunculo terminali uni-(raro bi-) floro petiolo subduplo longiore; lobis
calycinis lineari-lanceolatis ; corolle puberule tubo calyce 6-8-ies longiore versus apicem
ventricoso, lobis obovatis. (Tab. XLIII.) Hills and dry rocky places along the Rio Grande, in
Texas and Chihuahua, August—September. (Nos. 556, 557, and 1664, Wright.) Plant 1-3
feet high, often a little branching at the summit. Leaves 3-14 inch long, and 4-1 inch wide,
often obtuse, but usually with a short abrupt point, the petioles scarcely more than a line in length.
Flowers of a spicy odor. Calyx with numerous (30-40) minute subulate glands on the inside

surrounding the base of the corolla. Corolla white, tinged with rose externally; the tube 3-5
inches long, the upper part, for about an inch, 3 times the diameter of the lower portion, not
constricted at the throat, pubescent inside below the insertion of the stamens, Nectary of 5
unequal obtuse compressed distinct glands, which are about half the length of the ovary. |
Follicles about 3 inches long, very slender and tapering to a long point. Seeds oblong-
linear; testa wrinkled ; the coma at each end longer than the body of the seed. Very much
resembles E. hypoleuca, Benth ; but that has longer peduncles, a velvety-pubescent corolla, the
tube of which is only twice the eî of the lobes and dilated about one-half its lag as well
as constricted at the orifice ; also two of the glands of the nectary are connate.

ECHITES BRACHYSIPHON (n. sp.): caule erecto suffruticoso, ramis puberulis; foliis oblongis
ovatisve acutis utrinque pubescentibus subconcoloribus brevi-petiolatis ; pedunculis terminalibus
unifloris petiolo 5-plo longioribus ; lobis calycinis oblongis ; corolle tubo calyce 4-plo longiore
supra medium subventricoso, lobis obovatis. Arroyo de los Janos and San Bernardino, Sonora;
Schott, Thurber. (No. 1665, Wright.) Plant from aspan to a foot high, more spreading than
the preceding. Leaves about an inch long, sometimes smaller and oblong-lanceolate, the lower
ones often obtuse, not white on the under side. Peduncles ł of an inch long. Calyx 24 lines
long, with about 20 minute subulate glands at the base. Corolla white; the tube an inch and a
quarter long, the lower half much contracted. Nectary with two of the glands united into one.
This species also is related to E. hypoleuca, but that differs in the under part of the leaves being
clothed with a dense white tomentum, and the segments of the calyx are much narrower as well
as longer.

ArocYNUM CANNABINUM, Linn. Sp. p. 311; Alph. DC. Prodr. 8, p. 439. Western Texas,
Sonora, and California. Broad and narrow پر‎ forms occur in all these places.

AMsoNIA TOMENTOSA, Torr. & Frém. in Frém, 2d Rep. p. 316. Sandy plains and ravines,
borders of the Rio Grande, Chihuahua, Sonora, &c , April—May. Stems about a foot and a
half high, several springing from a woody base. Leaves varying in breadth from linear to
lanceolate, clothed with a short dense and more or less hoary pubescence. Flower about as large
as in A. Tabernemontana, Walt. Pods 2-3 inches long and 2 lines in diameter, cylindrical,
erect. A variety, or perhaps distinct species, occurs at Laguna Santa Maria, Chihuahua. It
is glabrous; the flowers are considerably smaller, with the sepals glabrous and nearly as long
as the tube of the corolla. In A. tomentosa the sepals are hairy and scarcely half as long as
the tube of the corolla. A Tabernemontana differs in the very short lanceolate sepals, which
are scarcely one-fourth the length of the tube of the corolla.

BOTANY. 159

AMSONIA TaBERN&ZMONTANA, Walt. Fl. Car. p. 98; Decaisne in DC. Prodr. 8, p. 385. A
ciliata, Walt. l. c.; Decaisne, l. c. <A. latifolia, Michx. Fl.1, p. 121. A. angustifolia, Miche.
luc. A. salicifolia, Pursh, Fl. 1, p. 184. A. tristis, J. E. Smith in Rees’ Cycl. Hills near
the Blanco river, Texas; Wright. A nearly glabrous variety.

AMSONIA LONGIFLORA (n. sp.): glabra; caule erecto e basi lignoso ramosissimo ; foliis lineari-
lanceolatis vel linearibus ; coroll» tubo gracili elongato (14 unc. longo) superne subventricoso ;
sepalis lanceolato-subulatis. Rocky ravines near El Paso, April—May. (No. 1668, Wright.)
Plant 1-2 feet high. Leaves 11-2 inches long, and from less than a line to 21 lines wide.
Corolla blue; lobes of the limb about one-fourth the length of the tube. Pods as in the two
preceding species. No. 1671 Wright is a variety with very narrow leaves, which are scabrous
with short hairs on the margin. .

HAPLOPHYTON 01211011021, Decaisne in DC. Prodr. 8, p. 412? In crevices of rocks, Magdalena,
Sonora; Thurber, Schott. (No. 1666, Wright.) Stems several from a woody base, 1-2 feet
high, minutely pubescent. Leaves 1-14 inch long, and 23-4 lines wide, opposite or alternate,
scabrous with short rigid hairs, which stand on a swollen crustaceous base. Flowers terminal
solitary or 2-3 inacymule. Calyx % the length of the corolla-tube; no traces of glands. Corolla
sulphur-yellow, somewhat salverform ; the tube shorter than the obovate lobes. Stamens united
about middle of the tube of the corolla; anthers oblong, rather acute, rather longer than the
free portion of the filaments. Ovaries oblong, distinct, each 7-8-ovuled ; style rather stout.
Stigma oblong-capitate, entire. Pods 2 inches long, very slender, tapering to a long narrow
point. Seeds oblong-linear, the testa wrinkled, each extremity furnished with a coma of white
hairs, which are longer than the body of the seed. This genus was founded on a Mexican plant ;
and part of the character, especially what relates to the seed, is drawn from an unpublished figure
of Mocino and Sesse. Notwithstanding the seed is said to be hairy only at the upper extremity,
I strongly suspect that the coma of the lower end had become detached, as it 18 very deciduous.
Our plant agrees in every respect with H. cimicidum, except that the latter is said to have leaves

2-21 inches long and 8-10 lines wide.

ASCLEPIADACEA,

METASTELMA BARBIGERUM, Scheele in Linnea, 21, p. 760. Hill sides and thickets, borders of
the Rio Grande, from New Mexico to Eagle Pass, June—September. Near Monterey, Neuvo
Leon, Dr. Edwards. (No. 549 and 1676, Wright. No. 2172 and 3198, Berlandier.) Dr.
Gregg collected it in Neuvo Leon, west of Cerralbo. We have what appears to be M. Schlecht-
endalii, Dne, collected in Key West, Florida, by the late Mr. Blodgett.

METASTELMA? ANGUSTIFOLIA (n. sp.): glabrata; caule prostrato vix volubili; foliis anguste-
linearibus acutis basi in petiolem brevem attenuatis; floribus plerumque solitariis axillaribus
oppositis breve pedicellatis ; corolle laciniis lineari-lanceolatis acutissimis apice recurvis in-
trorsum infra medium retrorsim pilosis; coronz stam. foliolis oblongo-spathulatis erectis integris
gynostegio constricto subequalibus ; stigmate longe rostrato.—Sides of ravines, Santa Cruz,
Sonora; Wright, No. 1677. Stem 1-3 feet long, slender, with a somewhat ligneous base. .
Leaves 1-12 inch long and one line wide. Flowers purplish, 2 lines long, on pedicels of the
same length. Calyx deeply 5-parted, the segments narrowly lanceolate. Corolla subcampanu-
late, the long segments recurved above the middle. Horny margins of the anthers angularly
projecting ; the membranaceous summit elongated, erect, oblong. Stigma with a cylindrical

7
g
5

160 UNITED STATES AND MEXICAN BOUNDARY.

beak, which is somewhat longer than the erect anther-membrane. Pods not seen. We refer
this plant to Metastelma with much doubt, but there is no other genus to which it seems to be
more allied. It occurs also in Lindheimer's Texan Collection.

ROULINIA UNIFARIA, Engelm. MSS. Gonolobus unifarius, Scheele in Linnea, 21, p. 760. Shady
thickets, near the Rio Grande, western Texas and New Mexico, July—October ; Schott, Bige-
low. (Nos. 546 and 1672, Wright.) I fear that it is too near R. Jacquint.

ACERATES VIRIDIFLORA, Ell. Sk. 1, p. 317; Decaisne in DC. Prodr. 8, p. 522. Asclepias
viridiflora, Pursh, Fl. 1, p. 181. Western Texas; Bigelow. No. 1693, Wright, is a variety
with broadly obovate and emarginate leaves. In my Flora of the Northern and Middle States
(2, p. 182) I incorrectly referred Asclepias obovata, ÆU., to this variety ; a mistake which has
been copied by Decaisne. Elliott's plant is a gepuine Asclepias; but A. obtusifolia وق‎ Torr.,
also referred by Decaisne to A. obovata, is our A. Jamesii, described below.

ACERATES DECUMBENS, Decaisne, l. c. Anantherix decumbens, Nutt. l. c. p. 202. Valley of
the upper Rio Grande and westward to the Gila river, April—August.

ACERATES AURICULATA (Engelm. MSS.): * caule erecto glabro ; foliis sparsis linearibus filifor-
mibus ; umbellis pluribus axillaribus multiflorus breviter pedunculatis ; pedicellis pilosis, calyce
extus villoso; corolle laciniis reflexis; cucullis gynostegio globoso sessili brevioribus apice
leviter tridentatis margine involutis basi latissime biauriculatis; folliculis lanceolatis longe
rostratis brevibus." Dry ravines near the Copper Mines, and along the Mimbres, June—J uly ;
Bigelow. Stem 2-3 feet high, somewhat glaucous. Leaves slightly scabrous on the margin,
which is not revolute, 4-6 inches long, 4—4 line (rarely as much as a line) wide. Pedicels 6
lines long. Lobes of the corolla 21 lines long. Horny wings of the anthers rounded, not
angular as in most Asclepiades. 了 ollen-masses also, of an unusual shape, curved, nearly
equally wide, and obtuse at each end: remarkable, also, for the large triangular wings at the
sides of the hoods. Pods 3 or 4 inches long. Resembling A. angustifolia, but easily dis-
tinguished by the perfectly smooth stem and non-revolute leaves, but especially by the larger
flower, the peculiar structure of the cuculli, and the shape of the pollen-masses. "This is No.
106 of Fendler's New Mexican Collection, and No. 1687 of Wright's. It was found also by
Frémont on the upper Arkansas. Doubtless it has often been confounded with A. angustifolia.

ACERATES (ANANTHERIX) TOMENTOSA (n. sp.): albo-lanata; caule erecto simplici; foliis ovatis
acutis sessilibus basi rotundatis v. cordato-amplexicaulibus; umbellis sessilibus plurifloris;
gynostegio sessili; cucullis suborbicularis saccatis apertis lateraliter compressis. (TAB. XLIV.)
Mountains east of San Diego, California, June; Parry. San Isabel, in the same State; Thurber.
We have also specimens collected by the Rev. Mr. Fitch, in some part of California. Stem 2-3
feet high. Lower leaves 4-5 inches long, and nearly 3 inches wide, usually clasping at the
base. Umbels 3-4, in the axils of the upper leaves, 8-12-flowered; pedicels 1-14 inch long,
very densely clothed with white wool. Flowers a third larger than in Asclepias Cornuti, ۴ of
a chocolate-purple color.’’ (Parry.) Petals ovate, reflexed, woolly externally. Hoods of the
crown nearly orbicular, spreading, without any trace of a spur, the margin of the orifice entire

‘and introflexed. The horny wings of the anthers almost rectangular at the base. Follicles
oblong-lanceolate, downy. This is a remarkable species, belonging rather to the subgenus
Anantherix than to Acerates proper.

Sarcosremma BILOBUM, Hook. & Arn. Bot. Beechey, p. 317. S. cynanchoides, Decaisne, l. c.
p. 540. S. Texanum, Engelm. MSS. Gonolobus cynanchoides, Engelm. & Gray, Pl. Lindh. 1,
p. 43. Borders of the Rio Grande, from Presidio del Norte to Eagle Pass, June—October ;

BOTANY. 161

Parry, Schott. Valley of the Limpia; Bigelow. Sonora; Thurber. (No. 1680, Wright. No.
904, 1951, and 2334, Berlandier.) This slender vine climbs trees to the height of 30 or 40 feet,
or trails over shrubs and other plants. The flowers have an agreeable odor. I strongly suspect
this to be the Gonolobus viridiflorus, Nutt. (not of Roem. & Schult.) It is certainly the plant
so named in my account of the plants collected by Dr. James in Long’s Expedition, and, I think
it was so regarded by Mr. Nuttall, who cursorily examined those plants in my herbarium.

SARCOSTEMMA ELEGANS, Decaisne, l. c. p. 541? Rocky places, Presidio del Norte, July—
August; Parry. Camp Bache, and on the Cibolo of the Rio Grande; Bigelow. Our plant
accords with the description of Decaisne, but it may be a distinct species. It differs from the
last in the strongly pubescent stem and leaves; the flowers twice as large, and the segments of
the corolla oblong and obtuse, with a reticulate venation; whereas in 8. cynanchoides the
divisions of the corolla are ovate and acute, with several parallel longitudinal veins. The
follicles are pubescent, about 4 inches long, half an inch wide in the middle, and tapering to a
long point,

SARCOSTEMMA UNDULATUM (n. sp.): volubile, glabratum; foliis lineari-lanceolatis acutis basi
subauriculato-cordatis margine undulato-crispatis; pedunculis petiolo 2—3-plo longioribus pluri-
floris; corona staminea exteriore pelviformi integerrima, interiore foliolis ovatis obtusis gynos-
tegio brevioribus. Mountains east of the Rio Grande, 70 miles below El Paso, June; Parry.
Copper Mines, New Mexico; Bigelow. (No. 1678, Wright.) Stem 2-3 feet long, twining, or
sometimes prostrate. Leaves 2-4 inches long, and 5-8 lines wide in the middle; tapering to a
long point, usually dilated and auriculate-cordate or somewhat hastate at the base; the mid-
rib often whitish on both surfaces; the margin more or less undulate or crisped; petioles about
half an inch long. Umbel 8-10-flowered. Peduncles 1-14 inch long, and the pedicels about
the same length. Flowers half an inch in diameter. Segments of the calyx linear-lanceolate.
Corolla rotate, purple, smooth internally and externally, the margin ciliolate ; segments oblong,
obtuse. Gypostegium nearly sessile. Pods 3 inches long, 4 lines in diameter, tapering at each
end, slightly pubescent. Resembles 8. crispum, Benth., but that is a humbles pecies, (only half
a foot long,) the peduncles barely equal the petioles, and the exterior stamineal crown is
annular ; while in our plant it forms a distinct cup.

SARCOSTEMMA HETEROPHYLLUM (Engelm. MSS.; Torr. in Pacif. Railroad Rep. 5, p. 363): puber-
ula, volubile; foliis anguste-linearibus brevi-petiolatis acutis basi cordatis v. cordato-hastatis
(raro) acutiusculis; pedunculis plurifloris petiolo multo longioribus; corolle laciniis patulis
ovatis acutis ciliatis extrorsum puberulis introrsum glabris (purpurascentibus;) corona stam.
exteriore pateriformi integra, inter. foliolis suborbiculatis gynostegium subquantibus ; folli-
culis longe attenuatis. Havines and rocky places, borders of the Rio Grande, western Texas,
New Mexico, and Chihuahua, westward to Sonora and San Luis Rey, California, April— June.
(No. 1681, Wright.) Stems numerous, from a somewhat ligneous base, 1—3 feet long, slender.
Leaves 1-9 inches long, 1-21 lines wide, the lower and middle ones more or less cordate, or
cordate-sagittate at the base, the lobes entire or denticulate ; uppermost leaves sometimes acute
. at each end ; petioles 2-4 lines long. Peduncles 1-2 inches long; umbel 8-12-flowered, the
pedicels much shorter than the peduncles. Flower about one-third of an inch in diameter ;
exterior corona in the form of a shallow cup. Gynostegium nearly sessile. Corolla brownish

purple. Near 8. lineare, Benth.*

5 We have Sarcostemma clausum, Roem. & Schuli., from Key West, where it was found Ly the late Mr. Blodgett,
2| k

o PORE دا‎ 5

162 UNITED STATES AND MEXICAN BOUNDARY.

SARCOSTEMMA HETEROPHYLLUM; var.? umbellis 5-8-4018, pedicellis pedunculo subzequalibus;

floribus majoribus; 6070118 laciniis oblongis obtusis. Gravelly hills, Rock Creek, and near.

Camp Bache, also at the mouth of the Great Cañon of the Rio Grande, June—July. (No. 1679,
Wright.) Perhaps distinct from S. heterophyllum: we have seen no intermediate forms. The
leaves are usually longer and wider; the flowers are of a dull purple color, and the segments of
the corolla are more strongly ciliate. Gynostegium distinctly stipitate. Follicles 4 inches long,
acute at the base, and tapering to a long point.

AscLEPIAS SULLIVANTII, Engelm. in Gray’s Manual, ed. 2, p. 352. Hill.sides, Muerte and Rock
Creek ; also at the Copper Mines, July—August; Bigelow. The pods are sometimes almost
entirely free from warts or spines. Leaves often very obtuse, or even ۰

AscLEPIAS JAMESII (n. sp.): glaberrima, subglauca; foliis orbiculato-obovatis subcoriaceis
retusis vel emarginatis basi cordatis brevissime petiolatis ; umbellis multifloris brevi-peduncu-
latis; gynostegio constricto ; cucullis dilatatis truncatis ; processu arcuato falciformi acutissimo
exserto; follieulis ovatis 1zvibus. A. obtusifolia var.? latifolia, Torr. in Ann. Lyc. 2, .م‎
Plains near the Limpio Mountains, July; Bigelow. Tascate, Sonora, July; Parry. (No. 1682,
Wright.) Stem stout, 1-2 feet high. Leaves 3-4 inches long, and 24-34 wide, somewhat
coriaceous, transversely and reticulately veined, mostly retuse or emarginate, with a small
abrupt point; the lower ones almost orbicular; petiole 1-3 lines long. Umbels several, in the
axils of the upper leaves. Peduncles 2-4 lines long. Flowers much resembling those of A.
Sullivantii. Corolla greenish ; segments broadly ovate. Hoods of the crown purplish, very
broad, obliquely truncated, the horn with the acute point exserted and projected partly over
the stigma, tne upper margin undulately 2—3-toothed. Horny margins of the anthers angularly
dilated at the base. "This species was first discovered by Dr. James, on Long's Expedition to
the Rocky Mountains, and was doubtfully regarded as a variety of A. obtusa in my account of
the plants collected by that botanist. It was afterwards found by Lieut. Abert, as well as by
Fendler, in New Mexico.

ASCLEPIAS EROSA (n. Sp.): puberula deinde glabrata; caule erecto simplici; foliis oblongo-ovatis
subcoriaceis acuminatis sessilibus margine eroso-denticulatis ; umbellis multifloris ; pendunculis
folio duplo brevioribus; cucullis obovatis obtusis longioribus; gynostegio constricto, processu
subulato arcuato longe horizontaliter exserto; folliculis ovatis, acuminatis levibus.— Valley
of the Gila river, near Metate, May—June; Schott, Thurber. Stem apparently 2-3 feet high,
stout. Lower leaves 5-7 inches long, and 24 broad, with a long acute point, very rough on the
margin, with irregular conspicuous cartilaginous serratures. Umbels 5 to 7, about half as long
as the leaves; pedicels 14 inch long, pubescent. Flowers as large as in A. Cornuti. Corolla
greenish white; segments at length reflexed. Hoods of the crown obliquely truncate at the
summit, the subulate horn exserted horizontally. Pods (immature) about 2 inches long, and
nearly an inch in diameter at the middle.—A pparently allied to A. glaucescens, H. B. 4 K.,
but that species has obtuse leaves, much shorter pedicels, and a subsessile gynostegium, which
is about the length of the hoods.

ASCLEPIAS ARENARIA (n. sp.): incano-pubescens, deinde glabrescens; caule simplici; foliis

oppositis obovatis vel inferioribus ovatis breviter petiolatis, superioribus emarginatis vel retusis; -

pedunculis brevibus multifloris, cucullis dilatatis obtusissimis utrinque unidentatis gynostegio
subsessili longioribus, processu subulato apice subrecurvo; folliculis oblongis attenuatis
levibus.—Sandy banks; Journado del Muerte, and on the upper Rio Grande, in New Mexico,
June—July. Plant 12-18 inches high, (apparently sometimes assurgent or prostrate.) Leaves

BOTANY. 163

243-4 inches long, and 11-21 inches wide, when old nearly glabrous and somewhat coriaceous ;
petioles 2-3 lines long. Peduncles scarcely an inch long. Umbels several, in the axils of the
upper leaves, 15-25-flowered. Corolla greenish white; hoods dull pale purple. Follicles 4
inches long, and an inch in diameter in the middle, attenuated to a long point. Allied to
A. Jamesii.

ASCLEPIAS NUMMULARIA (n. sp.): caule humili; foliis oppositis orbiculatis albo-lanatis ;
peduneulis folio longioribus; cucullis ovatis gynostegio sessili subduplo longioribus, processu
faleato vix exserto. (TABIE XLV, A.) Copper Mines, New Mexico, April; Bigelow, Thurber.
Santa Maria, Chihuahua; Parry. Santa Cruz, Sonora; Capt. E. K. Smiih.—Stems several
from a thick ligneous root-stock, 1-2 inches long. Leaves in 2 or 3 closely approximated pairs,
1-13 inches in length and breadth, with a very short abrupt acumination, often slightly cordate
at the base, clothed with a softly white pubescence. Peduncles 2 or 24 inches long; umbel
15-20-flowered, the pedicels about three-fourths of an inch long. Corolla greenish white; the
segments oblong and reflexed. Hoods obliquely truncate inward, entire, somewhat spreading.
Projecting margins of the anthers rounded. Pollen-masses triangular. Immature pods ovate,
tomentose.—A remarkable species ; very distinct from any other of the genus. It has much the
habit of Steinheilia radians, as represented in Deless. Ic. 5, t. 61.

ASCLEPIAS INVOLUCRATA (Engelm. MSS.): caulibus e basi lignoso brevi pluribus ; foliis oppositis
alternisve lineari-lanceolatis brevi-petiolatis margine tomentosis ; umbellis terminalibus sessilibus
foliis 2-4 involucratis ; cucullis ovatis acutiusculis patentibus gynostegio subduplo longioribus ;
processu cultriformi vix exserto; folliculis ovato-oblongis levibus.—Sandy soils, on the Mimbres
and near the Copper Mines ; also sandy plains between Laguna de Guzman and the Rio Grande ;
April—May ; Bigelow, Thurber, San Luis mountain, Sonora; Capt. E. K. Smith. (No. 1690,
Wright. No. 107, Fendler.) Stems 3-6 inches long, erect or spreading, somewhat pubescent,
Leaves 13-2} inches long, opposite and alternate, mucronate, nearly smooth above, except on
the margin, a little pubescent on the veins underneath. Umbel 10-15-flowered, involucrate,
with 1-2 pairs of leaves similar to those of the stem. Pedicels about three-fourths of an inch
long. Corolla greenish white, the segments ovate and reflexed. Hoods spreading, and their
points often a little recurved. Margin of the anthers projecting and acutely angular at the
base. Pollen-masses pyriform. Pod 2} inches long, and } inch in diameter, acute, but scarcely
attenuated at the summit.

ASCLEPIAS BRACHYSTEPHANA (Engelm. MSS.): caule ramoso ; foliis oppositis lineari-lanceolatis
longe angustatis basi in petiolum brevem attenuatis glabratis; umbellis pluribus extra.
axillaribus pedunculatis plurifloris ; cucullis truncatis antice bidentatis gynostegio sessili
dimidio brevioribus, processu falciformi verticali; folliculis oblongis levibus.—Sandy soils,
Valley of the upper Rio Grande, Chihuahua, and Sonora; April—July. (No. 1692, Wright.)
Dr Gregg found it in dry valleys west of Saltillo. Stem 8-12 inches long, branching from the
base upward. Leaves 3-6 inches long, gradually tapering from a rather broad base to along
narrow point ; petiole 2-3 lines long. Umbels 3-8 on each branch, the peduncles much shorter
than the pedicels. Corolla dull purple, the segments ovate-oblong, reflexed. Cuculli broader
than long, the inner margin produced into a tooth above. Margins of the anthers angular at
the base. Pollen-masses pyriform. Pods 2 inches long, acuminate.

ASCLEPIAS INCARNATA, Linn. Sp. p. 314; Decaisne, l.c. p. 567. Copper Mines, New Mexico,
July ; Bigelow. Var. foliis lato-linearibus vix puberulis. Banks of Devil's river, western
Texas, September ; Bigelow. Lower Rio Grande; Schott, Wright.

164 UNITED STATES AND MEXICAN BOUNDARY.

ASCLEPIAS TUBEROSA, Linn. Sp. p. 316; Decaisne, l. c. Western Texas, New Mexico and
Sonora, June—July. ٩

ASCLEPIAS PARVIFLORA, Willd. Sp. 1, p. 1267? Ravines head of Rock Creek, western Texas,
July; Bigelow. (No. 1684, Wright.) Many years ago, Prof. L. K. Gibbes, in his Catalogue
of the Plants of Columbia, South Carolina, (p. 11,) showed that the seeds of this species (at
least in his specimens) ‘‘ want the usual comose appendage of the genus!" I have verified his
observation in specimens from various parts of the southern States. In Dr. Bigelow’s plant
the seeds are crowned with a tuft of hairs, and yet I cannot find that it differs in any other
respects from the common A. parviflora, except that the flowers are about one-third larger.

ASCLEPIAS VERTICILLATA, Linn. Sp. p. 315; Decaisne, l. c. A. linearis, Scheele in Linnea, 21,
p. 758. Plains between Van Horne’s Wells and Muerte, July; Bigelow. Guadalupe river,
Texas; Scholt.

Var. GALIOIDES, Decaisne, l. c. A. galioides, H B. K. Near San Elceario, May; Parry.
New Mexico and Sonora; common. (No. 1685, 1686 and 1689, Wright.) Our plant seems to be
the same as Hartweg’s No. 216.

ASCLEPIAS FASCICULARIS, Decaisne, l. c. p. 569. A. macrophylla, Nutt. Pl. Gamb. in Journ.
Acad. Sc. PAilad. (n. ser.) 1, p. 180. Grassy places near San Luis Rey, California, October,
(in fruit); Parry. Variable in the breadth of the leaves.

AscLEPIAS LINARIA, Cav. Ic. 1, p. 42, t. 5T, ex Decaisne, l. c. p. 570. Sierra de Pajarito,
Yanos, Sonora, May ; Schott. Between Saltillo and San Luis Potosi; Berlandier (No. 1350)
& Gregg (No. 562.)

ASCLEPIAS MACROTIS (n. sp.): nana, suffruticosa; caule ramosissimo; ramulis rigidis unifariam
puberulis; foliis oppositis anguste linearibus glabris mucronatis; pedunculis brevibus extra-
axillaribus paucifloris; cucullis longissime lineari-attenuatis patulis margine pubescentibus ;
processu obtuso vix exserto; gynostegio sessili brevissimo. (Tas. XLV, B.) Rocky hills near
El Paso, and on the mountains below San Elceario, May—June; Bigelow, Parry. (No. 1691,

Wright. Stem about a span high intricately branched from the thick crooked base, which is
somewhat ligneous, the branches terete. Leaves 1-14 inch long and half a line wide, revolute
on the margin. Umbels 4—5-flowered. ^ Peduncles 2-3 lines long; pedicels 4-5 lines.
Segments of the calyx lanceolate. Corolla pale purple; the segments ovate and reflexed.
Hoods with an ovate base, their elongated tapering extremities diverging horizontally; the horn
slightly curved, short and obtuse, pubescent near the summit. Gynostegium very short, closely
sessile, anthers broader than long, with narrow cartilaginous margins. Pollen-masses elongated
pyriform. Pods oblong, lanceolate, acuminate, even. This very remarkable species has been
found only in the places mentioned above. It has much the appearance of Gomphocarpus
revolutus of South Africa. . ۱

ASCLEPIAS (OTARIA) LONGICORNU, Benth. Pl. Hariw. p. 24; Decaisne, l. c. p. 570. A. Lindhei-
meri, Engelm. & Gray, Pl. Lindh. 1, p. 42, (No. 272.) Plains and rocky places, New Mexico
and western Texas, along the middle and lower Rio Grande, June—September. Borders of
Aqua Fria river, Mexico; Gregg. (No. 1683, Wright.) i

ASCLEPIAS SUBULATA, Decaisne, l. c. p. 571; Torr. in Pacific R. Road Expl. 6, p. 362, t. T.
Lower California, near the Mexican boundary line; Parry. Ravines and hills sides of the
desert, near Fort Yuma, June; Schott.

SEUTERA MaRITIMA, Decaisne in DC. Prodr. 8, p. 590. Cynanchum angustifolium, Pers. Syn.
A, p. 274; Nutt. Gen. 1, p. 164. Saline marshes near the sea coast, western Texas; Wright.

BOTANY. 165

GoNOLOBUS GRANULATUS (Scheele in Linnea 21, p. 159.): volubilis pilis patentibus vel reversis
hirsutus ; foliis longius petiolatis ovatis acuminatis profunde cordatis; pedunculo petiolum
superante ; umbellis paucitloris ; coroll: laciniis ovatis obtusis reticulato-venosis extus pilosius-
culis, intus glabris ; corona stam. annuliformi ; gynostegio substipitato applanato ; antherarum
cuspidibus tenuissimis inflexis; stigmate nudo ; folliculis lanceolatis sparsim echinatis glabris.
Mountain ravines, near Live Oak Creek, September; Bigelow. Sonora; Schott. Monterey, Neuvo
Leon; Dr. Edwards and Major Eaton. (No. 543 and 1674, Wright. No. 350 Lindheimer's
Texan Coll. 1846.) Stem herbaceous, twining over shrubs and small trees. Leaves varying
from 2-31 inches long, and 11-21 inches wide, slightly pubescent on both sides; the petiole
8-10 lines long. Peduncles usually about one-fourth longer than the petioles. Uimbel (or
rather very short raceme) 4—8-flowered; the longer pedicels about an inch in length, Flowers
5 or 6 lines in diameter. Calyx hairy; the segments lanceolate. Corolla rotate, greenish or
purplish, with darker reticulated veins. Stamineal crown reduced to a narrow ring. Anthers
with the membranous appendage very thin and inflexed under, not lying on the stigma.
Pullen-masses obliquely obovate. Stigma obtusely 5-angled, flat. Follicles 44 or 5 inches long
and about 3 inch in diameter, armed with distant, subulate, rather firm prickles.

LACHNOSTOMA 2 PARVIFLORA (n. sp.): humifusum, pilosum ; foliis ovatis vel orbiculato-ovatis

acutis brevi-petiolatis; pedunculis folio multo-longioribus ; floribus primo umbellatis deinde

racemosis ; corolla rotata, laciniis ovatis; coronz stam. phyllis 10 biseriatis, 5 exterioribus

alte bifidis laciniis acuminatis, 5 interioribus subulatis utrisque gynostegio longioribus; folliculis
ovato-oblongis spinis innocuis villosis dense onustis. San Pedro Creek, western Texas; Wright,
(No. 1673.) Table-land between Ringgold Barracks and Laredo, on the lower Rio Grande,
June—July; Schott. Root tuberous. Stem clothed with a gray spreading pubescence, branch-
ing from the base; the branches 8-12 inches long. Leaves varying narrowly to broadly ovate,
about three-fourths of an inch long, usually waved and often crisped on the margin. Peduncles
axillary and subterminal, at first only a little longer than the leaves, but in fruit twice or thrice
longer. Umbels or racemes 5-10-flowered. Corolla about 24 lines in diameter, purplish.
Stamineal crown consisting of 10 distinct leaflets in a double series; the 5 exterior cleft about
halfway down, the points curved over the stigma; the 5 interior subulate, arising from the
base of the exterior leaflets, which they considerably exceed in length, and are likewise curved
over the stigma. Gynostegium sessile. Pollen-masses nearly orbicular. Pods 2-3 inches
long, densely covered with short thick rather fleshy processes. This plant can scarcely be
referred to any of Decaisne’s genera, but I am unwilling to propose a new genus for its reception
while my knowledge of the Mexican Asclepiadaces is so imperfect.

GONOLOBUS BIFLORUS, Nuit. Chthamalia biflora, Decaisne in DC. Prodr. 8, p. 605. Dry
prairies, western Texas; Wright, (No. 543.) New Braunfels, Lindheimer, (No. 162.) Stems
prostrate, 1-2 feet long, not twining. Flowers dark purple. Lobes of the stamineal crown
with an internal ridge which is produced into an inflexed curved process. Follicles 3~4 inches
long, echinate with soft prickles. ^C. pubiflora, Decaisne, l. c., is Gonolobus prostratus of
Elliott, but not of R. Brown.

GONOLOBUS (CHTHAMALIA) CYNANCHOIDES, Engelm. & Gray, Pl. Lindh. pars I, p. 43. Western
Texas, Wright. Nearly related to the last, but differs in the smaller flowers, and in the short
excavated process of the lobes of the corona, (No. 545, Wright. No. 1951, Berlandier.)

GONOLOBUS (CHTHAMALIA) PRODUCTUS (n. sp.): caule volubili pubescente ; foliis ovatis longe

$
166 UNIIED STATES AND MEXICAN BOUNDARY.

acuminatis cordatis, auriculis approximatis rotundatis puberulis ; pedunculis petiolis subzequa-
libus 3-5-floris ; corolla campanulata, tubo brevi, laciniis lanceolatis erectis ; corona stam.
cupuliformi crenato gynostegio breviore; follieulis (immaturis) levibus. Climbing over bushes.
Banks of Rock Creek ; Bigelow, Valley of the Limpio, and along the Rio Grande, June; Parry,
(No. 1675, Wright.) It was also found by Dr. Gregg, in Cadena, Mexico. Plant 2-4 feet
long, twining around low bushes or trailing on the ground. Lower leaves about 2 inches long ;
the deep sinus at the base often almost closed by the approximation of the auricles. Sepals
ovate-lanceolate, with a minute gland on the inside of each sinus. Corolla about 4 lines long,
mostly of a dull purple color, but sometimes greenish. Stamineal crown a shallow cup, about
two-thirds the length of the gynostegium, with the margin crenate or slightly lobed. On the
inside are 5 adnate processes which are connected with the gynostegium and outwards terminate
in a short tooth which is not exserted. Stigma obtusely 5 angled. Pollen-masses short and
roundish. There are no ripe pods in the collections.

GONOLOBUS(?) PARVIFOLIUS (n. sp.): pubescens; caule prostrato ramosissimo vix volubili;
foliis (semiuncialibus) deltoideo-ovatis basi cordatis crassiusculis ; floribus axillaribus solitariis
. vel geminis sessilibus; corolla urceolato-rotata ad mediam usque 5-lobata; corona stam.
5—loba,‘lobis ovatis obtusis gynostegio brevioribus ; folliculis lineari-lanceolatis longe attenu-
atis levibus. Sides of hills, cafion of the Rio Grande, below Mt. Carmel, October; Parry.
Mountain near the Limpia, western 'lexas; Wright. Stem 12-18 inches long, the upper
branches somewhat twining. Leaves 4-6 lines long, deltoid or sometimes hastate-cordate,
rather acute, mucronate; petioles half as long as the lamina. Flowers on short axillary
pedicels. Corolla about 23 lines in diameter, dull yellow, (brown when dry ;) the lobes trian-
gular-ovate. Stamineal crown 5-lobed, the lobes obtuse or slightly emarginate, concave, with
a prominent ridge on the inside. Stigma obtusely 5-angled, flat. Pods 34 inches long, tapering
to a long slender point.

OLEACEAE.

FRAXINUS SCHEIDEANA, Schlecht. & Cham. in Linnea, 6, p. 391; DC. Prodr. 8, p. 278. Var.
PARVIFOLTA : foliolis 1-3-jugis vix uncialibus. Rocky places in limestone districts on the Rio
Grande, from the San Pedro to the Pecos; Schott. Mountains of Santa Rosa, Cohahuila ;
Bigelow, Parry. A graceful shrub 5 or 6 feet high.

FRAXINUS VIRIDIS, Micha. f. Sylv. 2, p. 197, t. 120. Var. BERLANDIERIANA. F. Berlandieriana,
DO. l. o. Near Eagle Pass on the Rio Grande; Bigelow. (No. 602 and 2112, Berlandier.
No. 653 (Coll. 1846) and No. 41, (Coll. 1847,) Lindheimer.) Leaflets 5-7, or often 3, mostly
cuneate at the base, shining on the upper surface; the teeth larger and more salient than in the
F. viridis of the Middle States ; the fruit also is more acute.

FRAXINUS PISTACLEFOLIA, Torr. in Bot. Whippl. Rep. p.198. F. velutina, Torr. in Emory, Rep. p.
149. On the Rio Grande and its tributaries. Near the Copper Mines, New Mexico; Bigelow.
(No. 1697, Wright.) Ojito, Mexico; Gregg. Sonora ; Schott. A downy variety, with narrowly
lanceolate attenuate leaves, was found by Mr. Thurber at Guadalupe Cañon, Chihuahua. This
species often grows from 15-20 feet high. Sometimes it attains the height of 30 feet. The fruit
is often 3-winged.

FRAXINUS CUSPIDATA (n. sp.): foliolis 2-3-jugis lanceolatis vel oblongo-lanceolatis acutis cuspi-
datis serratis vel integerrimis utrinque glabris longe petiolulatis و‎ samaris oblongis utrinque
obtusis, Eagle Mountains and Great Caiion of the Rio Grande ; Parry, Bigelow. (No. 1698,

BOTANY. 167

Wright,) (mixed in my set with F. pistacieefolia.) A well characterized species, easily known
by the small fruit (scarcely 8 lines long,) which is broad in proportion and not contracted at the
base. The leaflets are narrower and entire in Mr. W right’ 8 specimen, while in Dr. Parry's
they are broader and mostly serrate.

FRAXINUS DIPETALA, Hook. & Arn, Bot. Beech. p. 362, t. 87. Var.? TRIFOLIOLATA : foliolis uni-
jugis ovatis vel obovatis integerrimis aut versus apicem crenato-serratis basi in petiolulum atte-
nuatis ; samaris lineari-oblongis emarginatis. Sterile mountains a few miles south of the Mexi-
can boundary line, in Lower California, July (in fruit); Parry. A shrub or small tree growing
in clumps, sometimes 20 feet high, with a trunk three inches in diameter. Leaflets never more
than a single pair and a terminal one ; sometimes, indeed, reduced to the single terminal one ;
the largest scarcely more than an inch long ; common petiole channelled above. Flowers not
known. Fruit in a loose cymose panicle, about three-fourths of an inch long, and 21 lines
wide, (in one specimen 3 lines wide,) only a little contracted at the base. As the flowers of
this ash are unknown, and the fruit of F. dipetala has not yet been seen, it remains uncertain
whether they are distinct, or are only extreme forms of one species.

FORESTIERA PHILLYREOIDES. Piptolepis phillyreoides, Benth. Pl. Hartw. p. 29. Var. srATHU-
LAEFOLIA: foliis spathulatis subcoriaceis. Near Monterey, Neuvo Leon and plains west of San
Pablo; Gregg. A shrub about 5 feet high. Not yet found in fruit. There can be no doubt
of the identity of Piptolepis and Forestiera. The flowers of both agree in all essential characters.
We place this genus in Oleacez where we have for many years regarded it as belonging, adopt-
ing the view of Richard, who more than half a century ago, said of it ** genus affine Chionan-
tho."* Other authors have pointed out its affinity to Oleaceae; but more recently Tulasne.t
has clearly shown that this is its true place.

FonEsrIERA LIGUSTRINA, Poir. Enc. Suppl. 2, p. 664. F. pubescens, Nutt. in Trans. Amer.
Phil. Soc. (n. ser.) 5, p. ITT. Adelia ligustrina, Micha. Fl. 2, p. 224. Borya ligustrina, Willd.
Sp. 4, 711; Pursh, Fl. 2, p. 22. Borders of the Rio Grande in western Texas, and in
Chihuahua. Leaves about an inch long, obovate or obovate-oblong, mostly obtuse, abruptly
narrowed at the base with a short petiole, slightly serrate, when young pubescent, but at length
nearly glabrous except along the midrib and on the petioles. Fruit oblong, about 4 times
longer than the pedicels, dark blue, the pulp rather thick and sweetish. Nut nearly even.
This is not an uncommon plant in Florida, and on the upper waters of the Red and Arkansas
rivers. Michaux has incorrectly described the leaves as very entire.

FORESTIEkA RETICULATA (n. sp.): foliis ب ی( وین‎ glabris acutis vel acuminatis sub-
coriaceis prominente reticulato-venosis d btus porulo i$; cymulis simplicibus ;
fructibus ovalibus, obtusis apiculatis pedicellis ې‎ longioribus. Crevices of rocks and in ravines
near the Pecos, on the Rio Grande; Schott. Ravines near White Oak Creek; Bigelow.
Western Texas; Wright, No. 565. Branches glabrous, but dotted with minute whitish warts.
Leaves 1-13 inch long, acute at the base, the veins strongly reticulated, especially (in the dry
specimens) on the upper surface; the midrib very slightly pubescent underneath. Staminate
flowers in small simple cymules with short pedicels. Fertile cymules 3—5 flowered. Fruit about
3 lines long, very dark purple, with a thin sweet pulp, sometimes 2-celled and 2-seeded. Nut
oblong, the shell thin and fragile, marked with prominent longitudinal veins. Seed conformed
to the cavity of the shell; testa thin pale brown, slightly sulcate longitudinally. F. porulosa,

> ومسي‎ differs from Chionanthus chiefly as from Fraxinus ornus.
Î Annales des Sc. Nat., ser. 3, 15, p. 254.

168 UNITED STATES AND MEXICAN BOUNDARY.

Poir., (Adelia porulosa, Michz.) which much resembles this species, differs in its entire obtuse
leaves, narrrowly evolute on the margin.

F'ORESTIERA SPHHROCARPA (n. sp.): foliis ad apicem ramulorum aggregatis, rhomboideo-

. oblongis parvulis acutiusculis superne crenato-serratis utrinque pubescentibus ; cymulis fcemineis
trifloris ; pedicellis pubescentibus fructu subgloboso vix dimidio brevioribus. Dry ravines near
the Limpio, July (in fruit); Bigelow. Leaves about three-fourths of an inch long, somewhat
coriaceous, usually 4 or 5 together in a cluster at the extremity of the short branchlets. Fruit
the size of a pepper-corn, with a thin pulp, dark purple and covered with a bloom. "This species
is easily distinguished by the small fasciculate leaves and small subglobose fruit.

FORESTIERA ANGUSTIFOLIA (n. sp.): foliis fasciculatis lineari-spathulatis vel anguste-lanceolatis
integerrimis obtusis glabris obsolete venosis subtus porulosis; fructibus ovatis acutis. Western
Texas near the Rio Grande; Wright, No. 566. Near New Braunfels and shore of Matagorda
Bay, February ; Lindheimer. Matamoras, Tamaulipas; Berlandier, No. 3024. Mexico; Gregg.
A large shrub, densely branched. Leaves in fascicles of 3 to 5, on very short spurs, or
undeveloped branches. They are 8-10 lines long and 2-24 lines wide, somewhat coriaceous.
Cymules 3—5-flowered arising from the centre of the tuft of leaves. Bracteoles broadly obovate.
Flowers hermaphrodite, 3—-4-androus. In Berlandier’s specimens the leaves are narrowly
lanceolate, more coriaceous, and revolute when dry.

JASMINACEJE.

MENODORA SCABRA, Gray, in Sill. Journ. n. ser. 14, p. 44 ; Torr. in Bot. Pacif. R. Road Rep. T,
p. 18, t. 1. Western Texas and New Mexico; Parry, Bigelow. Arroyo del Pczo Verde, Sonora,
July ; Schott. Ojo de Vaca, etc., Chihuahua; Thurber. (No. 563 and 1694, Wright.)

MENODORA LONGIFLORA, Gray, l. c. Ravines and rocky hills along the Rio Grande and, its
tributaries. (No. 1695 and 1696, Wright.)

MENODORA HETEROPHYLLA, Moricand in DC. Prodr. 8, p. 316; Gray, l. c. Sandy plains and
borders of streams, western Texas and Neuvo Leon ; May—October.

ARISTOLOCHIACEAE.
ARISTOLOCHIA CarrrogNICA, Torr. Bot. Whipp. Hep. p. 128. Napa county, California, March ;
Thurber.
ARISTOLOCHIA LONGIFLORA, Engelm. & Gray, Pl. Lindh. 1, p. 51. Sandy alluvions of the Rio
Grande, below the mouth of Los Moras, August ; Schott. ۱
. ARISTOLOCHIA BREVIPES, Benth. Pl. Hartw. p.15. A. Wrightii, Seemann, Bot. Herald, p.330,
t. 12. Dry rocky ravines northwestern Texas, Chihuahua, and Sonora. (No. 567, 568, and
1700, Wright.) No. 1701 of Wright is a form with the lobes of the leaves narrower and less:
rounded at the extremity. Mr. Seemann’s plant was collected in Durango.

NYCTAGINACEJE.

SELINOCARPUS DIFFUSUS, Gray, l. c.; var. PARVIFOLIUS: foliis parvis (vix semi-pollicaribus);
floribus solitariis. Caîions of the Rio Grande, October; Parry. Presidio del Norte, August;
Bigi

OXYBAPHUS GLABRIFOLIUS, Vahl. Enum. 2, p. 40? Western Texas, near the Rio Grande, below

. El Paso. This seems to have been collected only by Mr. Wright in his earlier explorations. It

is his No. 605. Alt - the involucres are mostly 2 or 3-flowered, it may be only a variety of
O. glabrifolius.

OXYBPAHUS AGGREGATUS, Vahll. c. Plains near the Limpio, Texas; Bigelow, (No. 1717, Wright.)

BOTANY. 169

۷ ۲ 0۳1۸ 0] ۰

MIRABILIS LONGIFLORA, Linn. ; Choisy in DC. Prodr. 13, pars 2, p. 428. Copper Mines, New
Mexico, July; Bigelow, Thur PA Mountains east of El Paso, Wright, No. 575. his No. 1702
is a glabrous or glabrate form of the species.

MIRABILIS MULTIFLORA, Gray. Oxybaphus multiflorus, Torr. in Ann. Lyc. N. York, 2, p. 237.
Quamoclidion multiflorum, Torr. ; Gray, N. Gen. & Sp. Nyct. in Sill. Jour. ser. 2, 14, مم‎
Nyctaginia Torreyana, Chois. l. c. Valley of the Rio Grande and a* the Copper Mines, April—
August. San Felipe, California; Parry. (No. 1703, Wright; 140, Fendler; 1327, Coulter,
Mex. Coll.)

MIRABILIS OXYBAPHOIDES, Gray. Quamoclidion oxybaphoides, Gray, 7. c. Western Mexico ;
Bigelow, Wright.

MIRABILIS CALIFORNICA, Gray. Oxybaphus levis, Benth. ? O. glabrifolius, Torr. Bot. Whipp.
Rep. p. 131, non Vahl. (Tas. XLVI.) Dry hills, San Diego, California ; Parry, Thurber.
Somewhat prostrate, forming dense tufts commonly more or less pubescent, and rarely glabrate.

OXYBAPHUS NYOTAGINEUS, Sweet; Choisy, l.c. Western Texas and New Mexico; also in the
adjoining Mexican States of Chihuahua and Cohahuila, near the Rio Grande. An extremely
variable species, as is shown by Dr. Gray in his note below.

OXYBAPHUS HIRSUTUS (Sweet; Choisy, l. c.): caule pilis patentibus hispido ; foliis lanceolatis
pilosis utriusque angustatis brevipetiolatis margine undulatis ciliatisque; involucris subsolitaris
axillaribus ; pedunculis (3-4 linearibus) demum reflexis; involucris subtrifloris ; fructu hirsuto
inter costas corrugato.—Gravelly hills on the Limpio, &., July; Bigelow, Wright. Stem
12-15 inches high, apparently sometimes assurgent, branching from the base, hispid with
short-spreading or reflexed hairs. Leaves 2-21 inches long, and 4-5 lines wide in the middle;
the uppermost ones more undulate than the lower. Peduncles slender, in the axils of the upper
leaves; the uppermost ones appearing clustered from the branches being undeveloped. Involucre
hairy, at length broadly campanulate and reticulate. Flowers all fallen in our specimens.
Fruit 23 lines long, obovate.

OXYBAPHUS ANGUSTIFOLIUS, Sweet; Choisy, l. c. p. 433. Plains and river alluvions, western
Texas, New Mexico and Chihuahua ; June—September.

OXYBAPHUS COCCINEUS (n. sp.): glaberrimus; caule gracili ramosissimo erecto ; foliis linearibus
elongatis integerrimis; panicula terminali laxa ; involucris 3-floris campanulatis 5-fidis, segmentis
acutis; perigonio infundibuliformi (coccineo) involucro 4—5-ties longiore ; fructu clavato-oblongo
profundesulcato. Hill sides, Copper Mines, and on the Mimbres ; Wright, (No. 1723) Thurber,
Bigelow. Highlands between the Nueces and San Pedro; April—June; Schott. Santa Cruz
Mountains, Sonora; Capt. E. K. Smith. Root ligneous, black and tortuous. Stems 12-18
inches high, slender terete, paniculately branched above. Leaves 2-3 inches long, and mostly
about a line wide, but sometimes 2 lines. Inflorescence a loose cymose panicle. Involucres
sometimes solitary in upper axils and the pedicels recurved. Perianth about three-fourths of an
inch long, funnel-form, with a long narrow tube; the limb of a bright crimson, 5-lobed, with
the lobes notched. Stamens and style exserted. Fruit pubescent, strongly 5-ribbed and slightly
rugose. This species is almost intermediate between Oxybaphus and Quamoclidion,

ALLIONIA INCARNATA, Linn.; Choisy, l. c. Sandy river-banks and on gravelly hill-sides.
Common in New Mexico, western Texas, and Chihuahua, westward to Sonora and California ;
flowering from April to September. (No. 1716, Wright.) The 3 leaves of the involucre are
ovate, concave, and are scarcely at all united at the base. Perianth campanulate-funnel-form,

k

170 UNITED STATES AND MEXICAN BOUNDARY,

mostly 4-lobed, the lobes notched. Stamens usually 3, not exserted. Fruit oval, the margin
winged, usually 4—6-toothed on each side, and reflexed over the back, so that the opposite sides
nearly meet, and thus partially conceal two longitudinal dorsal rows of spherical stipitate glands.
Achenium oblong, apieulate with the persistent base cf the style.

ABRONIA CYCLOPTERA, Gray, l. c. p. 319. A. (Tripterocalyx) micrantha, Torr. in Frém. 1st
Rep. p. 96. Sandy places on the Rio Grande, from Doña Ana to San Elceario, April, June;
Wright, No. 1712.

ABRONIA ARENARIA, Menz. in Hook. Exot. Bot. t. 193; Choisy, l.c. Sea beach, Monterey,
California; Parry. Flowers bright rose-color. Perennial fusiform root sometimes 4 feet long
and 2 inches in diameter. It is said to be eaten by the Indians. Common along the coast of
California, and extending to Puget’s Sound.

ABRONIA UMBELLATA, Lam, Ill. t. 5; Hook. 1. c. t. 194; Choisy, l. c. Abundant on the coast of
California. Root smaller and more branching than in the preceding species; Parry. ۱

ABRONIA MELLIFERA, Dougl. in Hook. Bot. Mag. t. 2879 ; Choisy, l. c. Sandy hills near El
Paso, etc., westward to the Colorado, California, April—June The wings are triangular and
terminate abruptly at the summit, where they are dilated laterally, so that the fruit appears
truncated or turbinate. The body of the fruit is much shorter than in the next species.

ABRONIA FRAGRANS, Nutt. MSS.; Hook. Kew Jour Bot. 5, p. 261; Torr. & Gray, Bot. Beck-
with Rep. p. 14, t. 10. Sandy hills on the upper Rio Grande, and west to Chihuahua, April
to August. The mature fruit is distinctly but narrowly 5-winged. What was cited as a dwarf
form of A. mellifera in Bot. Whippl. Rep. p. 131, is A. fragrans.

NYOTAGINIA CAPITATA, Choisy, l. c. Western Texas and valley of the Rio Grande, common.
(No. 1709, Wright; 680, Lindheimer, tte.)

ACLEISANTHES LONGIFLORA, Gray, l. c. (TAB. XLVI.) Sandy soils, western Texas and valley
of the Rio Grande, on both sides of the river, June—October. (No. 599 and 1704, Wright.)
The stamens and style are frequently much exserted in the later flowers, as they are in those of
A. Berlandieri.

ACLEISANTHES ANISOPHYLLA, Gray, l. e. In alluvial soil, Turkey creek, and on Rio San Pedro,
western Texas. (No. 598 and 1706, Wright.)

ACLEISANTHES BERLANDIERI, Gray, l. c. Nyctaginia obtusa, Choisy, l. c. p. 429. Near Laredo,
lower Rio Grande, June; Schott. (No. 1705, Wright; No. 1544, 2007, 3044, and 3203, Ber-
landier.) Leaves mostly acute. Flowers white, striped with pale purple.

ACLEISANTHES CRASSIFOLIA, Gray, l. c. On the Rio Grande, from Los Moros up to the Pecos,
October ; Schott. (No. 599a, Wright.)

PNTACROPHYS WRIGHTII, Gray, l. c. p. 318. (Tas. XLVII, B.) Rocky hills near Leon
Springs, Mexico, September; Bigelow. Between Victoria and San Antonio, Texas; Schott, In
all our specimens the flowers are expanded, with a slender tube an inch and a half long and
exserted stamens. The fruit of these flowers differs from that of the unexpanded precociously
fructified ones from which Dr. Gray drew the generic character. The 5 glands, instead of being
prominent and crowning the fruit, are small, rather depressed, and seated on a neck or con-
stricted portion of the fruit a little below the summit.

SELINocaRPUS CHENOPODIOIDES, Gray, l. c. Gravelly hills and valleys on the Rio Grande, from
E! Paso to the Presidio del Norte, and westward to Ojo de Vaca, Chihuahua, April—July.
(No. 1707, Wright.)

_ SELINOCARPUS ANGUSTIFOLIUS (n. sp.): subviscoso-puberulus; caule frutieuloso e basi ramosis-

BOTANY. 171

simo; foliis angusto-ellipticis acutiusculis; floribus in axillis superioribas solitariis demum
pendulis ; perigonio infundibuliformi tubo breviusculo ; staminibus 5 vix exsertis. (Tas. XLVII,
A.) Gravelly table land near Presidio del Norte, August; Parry, Digelow. Stem apparently
diffuse, the upright branches 6-10 inches high, slender. Leaves 6-8 lines long, 1-2 lines wide;
the petiole scarcely a line long. Flowers on short pedicels in the uppermost axils, some of them
fructifying without being fully expanded, but mostly with a dilated funnel-form border and a
tube 1-2 lines long. Stamens and style a little exserted. Fruit as in the preceding species.

BoERHAAVIA PURPURASCENS, Gray, l. e., p. 321. Hills near the Santa Rita, Copper Mines, New
Mexico; Wright. 1181068 and rocky hills, Presidio del Norte, July—August ; Parry, Bigelow.
The inflorescence at length becomes elongated, the flowers separating from each other and
forming interrupted or somewhat verticillate spikes. The species is closely allied to B. spicata,
Choisy.

BOERHAAVIA WRIGHTII, Gray, 1. c. Santa Barbara, southern New Mexico, August; Bigelow.
Near El Paso; Wright. Copper Mines, New Mexico; Thurber.

BOoERHAAVIA LINEARIFOLIA, Gray, l.c. Arid soils; valley of the Rio Grande, and near the
Copper Mines, New Mexico, June—August. The lower leaves are sometimes ovate-lanceolate.

BoERHAAVIA ERECTA, Linn.; Choisy, l. c. p. 450. Western Texas, New Mexico, and Chihuahua,
June—August. We follow Dr. Gray in referring to this species, various forms of an annual
Boerhaavia, of which there are numerous مسي‎ in the collection. B. erecta, however, is
said by Choisy to be perennial,

BoERHAAVIA PANICULATA, Rich.; Choisy, l. c. Western Texas, near the Rio Grande, June—
August.

BoERHAAVIA ANISOPHYLLA (n. sp.): caulibus glabriusculis diffusis basi lignosis ; paniculis laxe
ramosissimis inferne nudis, ramulis filiformibus ; foliis ovatis cordatis brevi-petiolatis glabris
undulatis in eodem pari inequalibus supra pallidis subtus albidis; floribus laxe subcymosis
breviter pedicellatis basi 3-bracteolatis, bracteolis persistentibus lanceolatis acutissimis; peri-
anthiis rotatis; staminibus 5-8; fructibus obovato-oblongis glabris 5-costatis (non truncatis),
costis angustis. Entrance of the Great Cañon of the Rio Grande, October; Parry, Bigelow.
Plant 1-2 feet high. Lower part of the stem slightly pubescent. Leaves in pairs, unequal in
size, the larger an inch long and half an inch or more broad. Perianth nearly half an inch in
diameter with scarcely any free tube, purple. Stamens and style much exserted. Fruit a line
and a halflong. Near 8. linearifolia, but that is glandularly viscid or villous, the leaves are
usually much narrower and hispid on the margin, and the coste of the fruit are thick and
rounded. Dr. Parry collected at the Presidio incomplete specimens of another Boerhaavia,
which may be undescribed. It differs from B. anisophylla in the much larger and more
diffused panicle, smaller flowers, which are mostly solitary at the extremity of the branchlets,
the hispid tube of the perianth, and the hairy fruit.

BOERHAAVIA SPICATA, (Choisy, l. c. p. 456?) : caulibus e radice annua erectis minute pubescenti-
bus ; foliis ovatis seepius obtusis integris repando-dentatis v. undulatis, inferioribus subcordatis ;
panicule ramulis in racemis sparsifloris desinentibus ; bracteis bracteolisque lanceolatis cuspi-
datis ; floribus (minutis) triandris; fructibus cylindraceo-clavatis glabris obtuse 5-costatis apice
rotundatis. Ravines and damp sandy places. Presidio del Norte; Parry, Bigelow. Chihuahua ;
Thurber. Valley of the Gila; Schott; May—September. Plant 12-18 inches high, slender,
the stem somewhat viscous. Leaves an inch long, on conspicuous petioles, often dotted. Racemes
when in flower scarcely half an inch long, but in fruit 1-2 inches. Flowers scarcely a line in

112 UNITED STATES AND MEXICAN BOUNDARY.

diameter, on very short pedicels. Fruit 1j linelong. "This seems to be the same as No. 1425
(which is without leaves) of Coulter's Mexican Collection ; but B. spicata, as described by Choisy,
differs in the lanceolate acute leaves and in some other unimportant characters.

BoERHAAVIA SCANDENS, Linn.; Choisy, l. c. B. Grahami, Gray, l.c. Dry ravines near the
Cibola of the Rio Grande, August; Bigelow. El Podrero, Sonora, June; Schott. (No. 3204
and 3205, Berlandier.) We can discover no essential difference between B. Grahami and our
West Indian specimens of B. scandens. Indeed, Dr. Gray suspected they were not distinct.
The free portion of the calyx-tube is as short in the latter as in the former, and neither plant is
climbing, being only prostrate, or not unfrequently even erect ; so that the specific name is in-
appropriate.

BoERHAAVIA ERIOSOLENA, Gray, l. c. p. 322. Gravelly plains near Presidio del Norte, and
below the Great Carion of the Rio Grande, September; Parry, Bigelow. Annual. Plant 1-2
feet high. Leaves orbicular-cordate, 14-2} inches in diameter. Flowers often precociously
fructified, and then the somewhat persistent tube becomes more or less elongated, sometimes
5-8 lines or more ; but the limb, in such cases, does not expand.

BoERHAAVIA LEIOSOLENA (n. sp.): perennis ; caule glabro erecto superne nudo ; foliis rotundato-
cordatis carnosis utrinque elevato-punctatis margine crenato-denticulatis glandulosisque ; pani-
culz ramis distantibus paucifloris, pedicellis subfasciculatis brevissimis ; bracteis bracteolisque
minutis; perianthii tubo elongato glabro; fructu turbinato l0-striato ; staminibus 5. In gyp-
seous soil, Great Cañon of the Rio Grande, 70 miles below El Paso, June; Parry. Stem 2-3
feet high, arising from a somewhat ligneous root. Leaves 2-3 pairs, near the base of the stem,
2-3 inches in diameter, roughened on both sides, (at least in dry specimens,) with little elevated
dots or papille, and the upper surface somewhat flocculose-pubescent. Panicle naked or with
only a pair of small leaves at the base of the lowest branches. Flowers somewhat fasciculate
toward the summit of the branchlets. Perianth with the free portion of the tube nearly an inch
long, the limb ovate but scarcely expanded in any of our specimens; the adherent portion of
the tube expanded at the summit into an annulate narrow wing. Fruit about 24 lines long,
turbinate, crowned with a conical summit. This is evidently allied to the last species, and is a
very remarkable plant.

BoERHAAVIA GIBBOSA, Pavon.; Gray, l. c. p. 323. Tinantia gypsophiloides, Mart. & Gal. و‎
Choisy, l. c. p. 457. Borders of the Rio Grande, from El Paso to the mouth of the Pecos, and
south-westward, April—October.

My friend Dr. Gray, who has lately revised the North American genera of Nyctaginacew and

the species of Mirabilis and Oxybaphus, has furnished me with the following conspectus.
J.T.

1. MIRABILEJE. Involucrum calyciforme, gamophyllum, 1-12-florum, Stigma capitatum,
granulatum.

* Anthocarpium symmetricum, apterum. Involucrum 5-fidum.

Mrnanmus, Linn. Anthocarpium leve, haud angulatum, ecostatum aut vix costatum, ovoi-
deum. Involucrum herbaceum, post anthesin vix mutatum. Stamina sepissime 5.

OxYBAPHUS, L'Her. Anthocarpium 5-costatum, obovatum vel clavatum, costis validis. In-
volucrum post anthesin auctum, rotato-explanatum, scariosum, reticulatum. Stamina sepis-
sime 3.

** Anthocarpium leve, hinc excavatum, marginibus aleeformibus rigidis plerumque dentatis

BOTANY. 173

inflexis, in centro linea duplici tuberculorum. Involucrum tripartitum, triflorum, fructiferum
haud scarioro-explanatum.

ALLIONIA, Linn. pro parte, Chois. (This genus should: by right, have borne the name of
Wedelia, Lefl., and Oxybaphus that of Allionia, Lefl.) Although the number of parts in the
involucre may well be more important than the number of flowers it incloses as Choisy remarks,
` yet the principal character of Allionia is in the fruit,

2. ABRONIEA. Involucrum polyphyllum, perfectum, e bracteis discretis 5-15, capitulum
multiflorum fulerans, Stigma capitatum vel lineari-clavatum.

NycrAGINIA, Choisy. Perigonium tubuloso-infundibuliforme, lobis integris, Genitalia longe
exserta, Anthocarpium nuciforme Mirabilis, ecostatum.

ABRONIA, Juss, Perigonium hypocraterimorphum, lobis obcordatis. Genitalia inclusa. An-
throcarpium perfectum 5-peterum. Embryo abortu monocotyledoneus.

3. ACLEISANTHEA. Involucrum imperfectum, e bracteolis 2-3 parvis ad flores singulos,
vel nullum. Stigma leve, peltatum seu pileiforme.

SELINOCARPUS, Gray. Anthocarpium alatum, alis 5 vel abortu 3 aveniis.

ACLEISANTHES, Gray. Anthocarpium et perigonium (longe tubulosum) Mirabilis.

PENTACROPHYS, Gray. Anthocarpium cylindricum, 5-costatum, costis apice glandula sæpius
tumida instructis.

ı BG@RHAAVIA. Anthocarpium nunc 5-costatum vel angulatum, nunc 10-costatum. Flores
sepius paniculati vel racemosi.

MIRABILIS, Linn.

$1. Nycraer, Royen. Involucrum uniflorum. Perigonium longe tubulosum vel infundibuli-
forme. Flores ampli.

M. JALAPA & M. LONGIFLORA, Linn., cum ۰

$ 2. QUAMOCLIDION, Choisy. Fere precedentis, sed involucrum 3-12-florum.

M. TRIFLURA, Benth. Pl. Hartw. Quamoclidion nyctagineum, Choisy.

M. wuLTIFLORA. Oxybaphus multiflorus, Torr. Quamoclidion multiflorum, Torr., etc.

$3. OXYBAPHOIDES. Involucrum 1-3-florum. Perigonium e tubo brevi late infundibuliforme.
Flores pro genere parvi.

M. OXYBAPHOIDES. Quamoclidion oxybaphoides, Gray in Sill. Jour. (ser. 2,) 15, p. 320. In-
volucrum triflorum, 5-partitum, fructiferum tenui-membranaceum. Stam. 3.

M. CALIFORNICA. Oxybaphus levis, Benth. Bot. Voy. Sulph. p. 44? O. glabrifolius, var.
crassifolius, Choisy in DO. Prodr. 13, p. 431. O. glabrifolius, Torr. Bot. Whipp. Rep. p. 131,
non Vahl. Aut glabra, aut viscoso-villosa, foliis parvis subcordatis. Involucrum uniflorum,
5-fidum. Stam. plerumque 5. (This cannot be Oxybaphus ovatus, which is said to have
* semen obovatum leve," for it is also said to have the involucrum ‘‘ crescentes in membranam
venoso-reticulatam patentissimam." R. & P.)

OXYBAPHUS.

The two sections founded on the number of the flowers in the involucre are of small value in
this genus. Betero’s No. 495, referred by Choisy to O. ovatus, and probably (with Calyxhy-
menia ovata, R. & P.?) only a form of O. viscosus, exhibits two if not three flowers in the same

involucre. No. 511 of Dr. Gregg's Mexice د‎ Collection is in the same case, and is pretty clearly
O. viscosus notwithstanding. And I think that Wright's No. 605, with glabrous and papillose-

174 UNITED STATES AND MEXICAN BOUNDARY.

tuberculate fruit, is only a similar state of O. glabrifolius. The 3-flowered species occasionally
bear four or five flowers.

Our species are exceedingly variable, and hard to fix by characters. The tubercles or papillz
develope variously in the same species, and they also change after wetting, deliquescing more
or less into mucilage. The earlier flowers of O. nyctagineus, and probably of other species,
are apt to fructify precociously.

I can understand our species only as follows:

§ 1. Perigonium breve, subeampanulatum seu rotato-infundibuliforme, involucrum paullo
superans.

* Anthocarpium glabrum secus vel etiam inter costas sepissime tuberculatum. Involucrum
1-3-florum.

O. viscosus et O. GLABRIFOLIUS, Mexico.

O. aLABRIFOLIUS, Vahl.: var. involucro 2-3-flora. "Texas, in mountain valleys near the Rio
Grande, below El Paso; No. 605, Wright.

O. AaanEGATUS, Vahl. Mirabilis aggregata, Cav. Ic. 5, t. 431. Smith's Run, western Texas ;
No. 1717, Wright. Certainly the plant of Cavanilles, and found north of Mexico by no other
collector.

** Anthocarpium pubescens. Involucrum semper 3—5-florum.

O. NYCTAGINEUS, Sweet. Allionia nyctaginea, Micha. Fl. 1, p. 100. Folia omnia (nisi summa
diminuta) petiolata, basi obtusa vel cordata. Fructus hirsutulus, inter costas nunc leviter
subreticulato-rugosus.

Var. a LATIFOLIUS: usque ad involucrum fere glaber seu glaberrimus ; foliis ovatis cordatisve
submembranaceis, facie Mirabilis. Allionia nyctaginea, Michx. Wisconsin to Texas and New
Mexico. No. 741, Fendler; 603, Wright; 681, (1847-8,) Lindheimer, &c. This needs to be
compared with 0. violaceus, a Linnzan species, of which I have no sufficient specimens.

Var. 8 CeRVANTESII: ramulis involucrisque viscoso-pubescentibus seu 71110818 ; foliis plurisque
minoribus et crassioribus 82:15 obtusis cordatis vel basi subcordatis. O. Cervantesii, Lag. ex
Choisy, l. c. New Mexico and Texas to Mexico. No. 912, Coulter; 142, Fendler ; 1719 and
1720, Wright. No. 1719, in part, and 1721, Wright, an intermediate between « and ۰

Var. y OBLONGIFOLIUS: foliis ovato-lanceolatis oblongisve crassis basi haud cordatis; cat.
var. û. Allionia ovata, Pursh, Fl. 1, p. 91. Oxybaphus floribundus, Choisy, l. c. A mere
form of the last. No. 604, Wright ; 2004, Berlandier, ۰

Var. s PILOSUS: undique viscoso-hirsutus ; cet. var. 8 & y. Calymenia pilosa, Nutt. Gen.
1, p. 26. Upper Missouri to New Mexico. No. 1718, Wright; between this and var. 8. Rio
Mimbres, &c. ; Bigelow.

O. ALBIDUS, Sweet ; Choisy, l. c. Allionia albida, Walt. Fl. Car. p. 84. Calymenia albida,
Nutt, Oxyb. pilosa? Engelm. & Gray, Pl. Lindh. l. c. p. 51. 67 inflorescentia glabella.
Folia omnia subsessilia, lanceolata seu oblongo-lanceolata, basi acuta. Fructus magis hirsutus
quam in O. nyctagineo, secus vel inter costas muriculatus. N orth Carolina to Texas. Hook.
Fl. Bot. Am. 2, p. 124. ١

O. HIRSUTUS, Sweet ; Choisy, l. c. Allionia hirsuta, Pursh, Fl. 2, p. 128. Calymenia hirsuta,
Nutt.l.c. Saskatchewan to northwestern Texas ; on the Limpio ; Bigelow, Wright. Subpedalis,
undique hirsutus. Folia lanceolata, crassa, inferiora breviter petiolata, Fructus O. nyctaginei.
小 he broader-leaved states approach var. € of O. nyctagineus; the narrow ones becoming
glabrate may pass into the next ork

BOTANY. 175

O. ANGUSTIFOLIUS, Sweet ; Choisy, l. c. (pro parte.) Colymenia angustifolia, Nutt. C. decum-
bens, Nutt. Allionia linearis, Pursh, l. c. Folia linearia, ssepius elongata, repanda, crassa,
glaucescentia, cum caule 1-6 pedali glaberrima. Pedunculi et involucra pubescentia. 6
cinereo-pubescens. Upper Missouri to the Rocky mountains, New Mexico, and Texas. No. 745,
Fendler ; 606, 607, 1822, Wright.

$2. Perigonium angustius infundibuliforme, involucro quadruplo longius. Anthocarpium
clavato-oblongum, apiculatum, pubescens, inter costas validas profunde sulcatum.

O. 000025808, Torr. ined. Species habitu precedentis, floribus et fructu distinctissimum.
New Mexico.

POLYGONACERX.

ERIOGONUM HIERACIFOLIUM, Benth. in DC. Prodr. 14, pars 1, p. 6. Hillsides, along 16 656
of Rio Grande, above the mouth of the Pecos; Parry. Western Texas, near the Rio Grande ;
Wright, No. 616. A well-marked species, but allied to E. alatum, from which it is easily
distinguished by the achenium being winged only above the middle, and not at all below. It
is commonly about a foot and a half or two feet high. The sepals are nearly equal, and vary
from yellowish to rose color. Pedicels articulated close to the flower. Bracteoles linear,
glabrous. Embyro excentric and a little curved.

Enr0G0NUM ALATUM, Torr. in Sitgreave Rep. p. 168, t. 8; Benth. l. c. Hills near the Copper
Mines, New Mexico; also near Cruces, June—July ; Bigelow, Thurber, (No. 225.) Some of the
specimens are more than ‘our feet high.

EnroaoNUM CILIATUM (Torr.; Benth. l. c.): herbaceum, perenne ز‎ caule nudo tereti glabro
parce dichotomo-ramoso ; foliis radicalibus obovatis obtusis cum acumine brevissimo basi in pe-
tiolum attenuatis supra glabris, subtus pilosiusculis margime ciliatis; pedunculis elongatis ; in-
volucris campanulatis 5-fidis ; perigoniis subcoriaceis semisexfidis, laciniis ovatis erectis, interi-
oribus paullo longioribus angustioribusque ; achenio triquetro perigonio fructifero subzquali.
Sandy soil near Buena Vista, Cohahuila, July ; Dr. Edwards. Near Monterey, in the same
State; Gregg. Root perennial; leaves in a subradical cluster from a short divided caudex, 13 to
24 inches long (including the petiole) and six to ten lines wide. Stems, several from one root,
12-15 inches high, slender, two to three times forked, the terminal divisions bearing a solitary
involucre which is about two lines in diameter. Flowers very numerous, the pedicels jointed
close to the flower. Bracteoles narrowly linear, fringed with long hairs. Perianth purple,
of a coriaceous (or probably, in the living plant, of a fleshy) texture; the segments extending
scarcely below the middle, rather obtuse; the entire base showing six obtuse ridges. Stamens
included, six of them alternating with the segments, the other three opposite the inner segments
and inserted considerably lower down ; filaments smooth. Ovary triangular; styles very short.
Achenium enclosed in the connivent perianth, triquetrous, smooth. Embryo incurved, excentric.
On high plains near San Juan de la Vagueria, Dr. Gregg found an Eriogonum that seems to
be a variety of this species, but it differs in the following characters: var. FOLIOSUM : caule
scabriusculo 2-3-chotome ramoso, axillis foliosis. Plant about a foot high, more branched than
the preceding; the radical leaves smaller, less ciliate, and of a somewhat fleshy texture. Cauline
leaves about three quarters of an inch long; smooth. Peduncles one to one and a half inch
long. Sepals united to the middle, closing around the fruit.

ERIOGONUM LoNGIFOLIUM, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 164; Benth. l. c.
Mountains and plains near Live Oak Creek, September ; Bigelow.

ig

n د‎ EE

E RE EAE

176 UNITED STATES AND MEXICAN BOUNDARY.

EnrocoNvM Jamesin, Benth. l. c. Hill sides and arroyas on the upper Rio Grande and its
tributaries.

ERIOGONUM FASCICULATUM, Benth. in Linn. Trans. 17, p. 411, & in DO. Prodr. l. c. Near
‘San Felipe, etc., California ; Parry, Schott.

ERIOGONUM POLIFOLIUM, Benth. in DC. Prodr. l. c. Sandy hills, San Felipe; Thurber, (No.
587,) and near San Diego, California; Parry. Dr. Andrews found it also at Monterey. On
the lower Gila ; Schott. This species forms bushy tufts one to two feet in diameter.

Erroconum Wrientit, Torr.; Benth. l. c. p. 15. Hill sides, Copper Mines, and along the Rio
Grande from Albuquerque to the great caiions; frequent. Dry plains, Los Playas, Sonora,
June; Thurber. Var. HELIANTHEMIFOLIUM. E. helianthemifolium, Benth. |. c. Pine mountains
east of San Luis Rey, California ; Parry.

ERIOGONUM vireatuM, Benth. in DC. Prodr. l. c. p. 16. Grassy places near San Luis Rey,
California; Parry. This agrees very well with the original specimens of Frémont, named by
Bentham.

ERIOGONUM GRACILE, Benth. Bot. Sulph. p. 46. Sandy ravines, Sonora, September ; Thurber.

ERIOGONUM ACETOSELLOIDES, Torr.; Benth. in DC. Prodr. l. c. p. 16 7. Near Santa Barbara,
California, August; Parry. The flowers are smaller and on longer pedicels than in specimens
collected in the United States Exploring Expedition.

EnroeoxvuM VIMINEUM, Dougl.; Benth. in Trans, Lin. Soc. 17, p. 416. Sandy hills, San Felipe,
California, May ; T'hurber.

ERIOGONUM MULTIFLORUM, Benth. l. c. Western Texas, along the lower Rio Grande to its
mouth.

Ertoconum annuum, Nutt. l. c.; Benth. in DC. Prodr. l. c. p. 19. E. cymosum, Benth. l. c.
Alluvions of the Cibolo, a tributary of the Rio Grande, and rocky places, Howard's Springs,
August—September ; Bigelow.

ERIOGONUM TENELLUM, Torr. in Ann. Lyc. New York, 2, p. 241; Benth. l. c. Mountains
below San Elceario, and at the mouth of the Great Caîion of the Rio Grande; Bigelow, Parry ;
also on the San Pedro, western Texas. (Nos. 619 and 1767, Wright.) Some of our specimens
are two feet high.

Var. B PLATYPHYLLUM. E. platyphyllum, Torr. ; Benth. l.c. On the Rio Grande, western
Texas. (Nos. 618 and 1768, Wright.) Intermediate forms show a gradual transition from this
variety to E. tenellum.

EnrogoNUM TRICHOPODUM, Zorr.; Benth. l. c. Dry ravines and rocky banks, along the Rio
Grande from El Paso to the Great Cañon, and west to the Colorado of California. The leaves
are all radical, orbicular, or roundish-ovate, cordate, on petioles much longer than the lamina.
.. Errogonum CORDATUM, Torr.; Benth. l. c. Near San Felipe, on the borders of the California
desert; Parry.

ERIOGONUM THURBERI (n. sp.): annuum, humile, arachnoideo-lanosum ; foliis subradicalibus
longe petiolatis late ovatis obtusis subcordatis rugosis, margine subundulatis, subtus incano-
tomentosis ; caule superne divaricato 2-3-chotomo; pedunculis elongatis capillaribus ; involucris
late campanulatis 5-6-8015 paucifloris; perigoniis glabris profunde 6-fidis, laciniis exterioribus
superne reniformi-dilatatis medio constrietis; interioribus oblongo-subpanduriformibus. Sandy
ravines, San Pasqual, California, May; Thurber. I have seen specimens of this plant collected
in California by Mr. Wallace. Leaves in a subradical cluster, about half an inch long undulate-
rugose, pubescent above, white-tomentose underneath. Stem a scape about a span high tricho-

BOTANY. - 117

tomously subdivided below the middle, with ovate acute ternate bracts at the forks. Pedicels
an inch long. Involucre less than a line in diameter, cleft nearly to the middle into six rather
obtuse lobes; exterior segments of the perianth nearly four times broader than the inner.
Filaments and ovary smooth. Styles short. Achenium smooth. Embryo strongly curved. No
bracteoles were detected; in their place are only woolly hairs. Resembles E. rotundifolium in
the flowers; but that species has numeous stems, which branch near the root, even leaves; much
shorter stout peduncles, and manifest bracteoles.

ERIOGONUM ROTUNDIFOLIUM, Benth. l. c. Rocky ravines along the Rio Grande from El Paso
to Santa Barbara, and west to Santa Maria, Cohahuila, April—June. (No. 1765, Wright.)

EnrocoNUM cERNUUM, Nutt. Pl. Gamb. in Jour. Acad. Sc. Phil. n. ser. 1, p. 162 ; Benth. l c.
On the Gila ; Schott.

ERIOGONUM ABERTIANUM, Torr. in Emory's Rep. p. 151; Benth.l. c. Sandy soils, valley of the
upper Rio Grande; westward along the Gila, and in Chihuahua. Variable in height and
breadth of leaves, but always easily recognized. (Nos. 620, 621, 622, 1761, 1762, 1763, Wright.)

ERr0G0NUM PHARNACEOIDES, Torr. in Sitgreave's Rep. p. 167, t. 11; Benth. l. c. Hills near the
Copper Mines; Bigelow. Near Janos, Chihuahua; Thurber.

CHORIZANTHE ANGUSTIFOLIA, Nutt. l. c.; Benth.l. c. Near Monterey, California, on the sandy
beach, May; Parry.

CHORIZANTHE DIFFUSA, Benth. Pl. Hartw. p. 333, & in DC. Prodr. l.c. With the last ;
Parry.

CHORIZANTHE PROCUMBENS, Nutt. l. c.; Benth. l. c. San Diego, California, May; “hurber.

CHORIZANTHE BREVICORNU (n. sp.) annua; foliis radicalibus anguste-spathulatis hirsutis ;
caulibus subnudis erectis 2-3-chotome ramosis; cymis laxe corymboso-paniculatis ; involucris
glabriusculis anguste tubulosis, dentibus subeequalibus subulato-aristatis recurvis tubo triplo-
brevioribus, perigonii laciniis integris acutiusculis equalibus. On the Gila River, March ;
Parry,; also collected by Colonel Frémont on the same river. Plant 1-4 inches high.
Leaves scarcely a line wide, rather acute. Bracts subulate. Involucre about 3 lines
long, a little curved, the teeth scarcely uncinate. Stamens only 3 in all the specimens examined.
Near C. staticoides, but with a much looser inflorescence, shorter involucral teeth, equal perianth-
segments and only 3 stamens.

CHORIZANTHE FIMBRIATA, Nutt. l. c.; Benth. l. c. Torr. in Pacif. R. Road Expl. 6, p. 362, t. 8.
« Dry hills around San Diego, California, in such profusion as to give them a red appearance ;”’
Thurber.

AcawTHoGONUM RIGIDUM, Torr. in Bot. Whippl. Rep. p. 133, & in Bot. Parkes Rep. t. 8.
Desert west of the Colorado, California, March ; Schott.

MvcnoxEA CALIFORNICA, Benth. in Linn. Trans. 17, p. 419, t. 20, din DC. l. c. p. 27. Dry
hills near San Diego, California ; Parry. In our specimens the involucres are all 3-4-toothed.

CENTROSTEGIA THURBERI, Gray, in DO. Prodr. l. c. p. 27; Torr. in Bot. Parkes Rep. 7, p. 19,
t. 8. Sandy hills near San Felipe, California, May و‎ Thurber, 0۰

PrEROSTEGIA DRYMARIOIDES, Fisch. & Mey. Ind. 2, Sem. Hort. Petrop. p. 48; Benth. l. c. San
Pasqual, and Napa, California, May; Thurber. Mr. Thurber's specimens from Napa resemble
those collected by Dr. Bigelow near San Gabriel, in which the leaves are 2-cleft with variously
cut segments.

RuMEx HYMENOSEPALUS (n. sp.): glaberrimus ; foliis ovato-lanceolatis basi angustatis margine
subundulatis; panicula aphylla, racemis elongatis erectis, verticillis approximatis multifloris ;

23 k

178 UNITED STATES AND MEXICAN BOUNDARY.

pedicellis capillaribus valvas sequantibus; valvis lato-cordatis membranaceis integerrimis
ecallosis. Sandy soils from El Paso to the cafions of the Rio Grande; March—April. Root
white. Stem 2-3 feet high. ‘‘ Foliage intensely bitter ;" Thurber. Lower leaves a foot or
more long and 2-3 inches wide, somewhat undulate on the margin; upper ones nearly flat.
Panicle a foot long ; the flowers crowded. Inner sepals of the fructiferous calyx nearly half an
inch long, roundish-ovate, strongly cordate, of a very thin texture, often rose-colored, slightly
reticulate-veined, twice as long as the achenium. We cannot refer Rumex to any described
species. It is nearest R. venosus, but that is a smaller plant, the leaves with a much longer
and more attenuated base, the panicle lax, and with but few flowers in whorls, and the valves
are a great deal larger, as well as broader in proportion.

RUMEX SALICIFOLIUS, Weinm. in Flora, 1821, ex Meisn. in DC. Prodr. 14, pars 1, p. 47. Banks
of the Rio Grande near Frontera, Texas; April. (No. 1780 and 1781, Wright.)

Var. DENTICULATIUS: valvulis lato-deltoideis denticulato-serrulatis vix callosis. Near San
Diego, California; Thurber. Probably a distinct species.

Rumex MARITIMUS, Linn. ; Meisn. l. c. p. 59. Moist sandy places near San Luis Rey, Calfornia >
Parry.

POLYGONUM AVICULARE, Linn. Sp. p. 519; Meisn. l. c. p. 91. Western Texas ; Wright, No.
1774 and 1775; the latter a tall erect slender form with narrowly lanceolate leaves.

了 PorYGONUM PARONYCHIA, Cham. d Schlecht. in Linnea, 3, p. 51. Meisn. l. c. p. 89. Near
Monterey, California; on the sea beach, April; Parry. San Francisco, March; Thurber.

POLYGONUM CAMPORUM, y BOREALE, Meisn. in Mart. Fl. Bras. fasc. 14, Polyg. p. 22; & in
DC. Prodr. 14, pars 1, p. 87. Dry bed of the Sea Willow, Texas, August; Bigelow. Mouth
of Los Moros; Schott. (No. 614, Wright.) Stems 3-4 feet long, simple below, apparently
arising from a creeping rhizoma, the branches elongated, terete, terminating in long slender
interrupted spikes; bracts 2-4-flowered, the lower ones remote and sometimes with small
oblong leaves in the axils, the upper somewhat approximated. Flowers on exserted pedicels.
Perianth pale rose color or white, not punctate. Achenium triquetrous.— Allied to P. scoparium
of Corsica.

POLYGONUM TENUE, Michæ. F1. 1, p. 238; Torr. Fl. N. York, 2, p. 153. Hill sides, Santa
Rita del Cobra, Aug.; Bigelow. (No. 1776, Wright.)

了 PoLYGONUM ACRE, H. B. K.; Meisn. l. c. p. 101. P. hydropiperoides, Pursh, non Micha.
Between El Paso and Doña Ana, on the Rio Grande, April; also on the Mimbres ; Bigelow.
(No. 1777, Wright.)

POLYGONUM HYDROPIPEROIDES, Micha. Fl. 1, p. 239; Meisn. l. c. p. 103. Brady’s Creek,
western Texas, October; Thurber.

POLYGONUM NoposuM, Pers. var. INCARNATUM, Gray, Bot. N. States, ed. 2, p. 372. P.incarnatum,
Ell. With the last. Wet ravines below San Elceario on the Rio Grande; Bigelow. Western
Texas; Thurber.

POLYGONUM Pennsyivanicum, Linn. Sp. 1, p. 519 ; Meisn. l. c. Low grounds near San Elceario
Texas; Bigelow. Sonora; Thurber, Capt. E. K. Smith.

PotyeonuM PERSICARIA, Linn.; Meisn. l. c. Wet places; Valley of the Limpio, etc.

POLYGONUM AMPHIBIUM, Linn.; Meisn. l. c. Var. TERRESTRE. Presidio del Norte; Bigelow
(a nearly glabrous form.) Santa Cruz river, Sonora ; Capt. E. K. Smith. (No. 1779, Wright.

BOTANY. 179

BASELLACE.

ANREDERA SCANDENS, Mog. in DC. Prodr. 13, pars 2, p. 230. Basella vesicaria, Lam. Dict. 1,
p. 382. Alluvions of the lower Rio Grande, below Roma, September—October ; Schott. A
very common vine in the thorny ‘‘ chapparal,’’ twining profusely on every fence and hedge near
Corpus Christi; Dr. Edwards.

AMARANTACEZ.

AcANTHOCHITON WRIGHTII, Torr. Dot. Sitgr. Hep. p. 170, t. 13. Plains among the Burro
mountains, September ; Bigelow. Los Medanos, Chihuahua, August ; Thurber. These specimens -
are very perfect and enable us to amend the character of Acanthochiton given in the work here
quoted. There are three somewhat unequal bracts to each male flower. The cells of the
anthers are separate at the summit, and very acute. The female flowers are mostly ternate and
are subtended by three bracts, the middle one of which is cordate-falciform and usually much
larger than the lateral ones.

CELOSIA PANICULATA, Linn. Sp. p. 298; Mog. in DC. Prodr. 13, 2, p. 240. Shady woods near
Eagle Pass, on the Rio Grande ; also on the San Pedro river, western Texas, August—Novem-
ber; Bigelow. (No. 594, Wright.) A common plant in subtropical America. Dr. Edwards
found it at Corpus Christi, and Mr. Blodgett at Key West.

AMARANTUS HYBRIDUS, Linn. Sp. p. 1406; Mog. l. c. p. 259. On the Rio Grande, and along
the Gila. (No. 1648, Wright.) Probably not indigenous.

AMARANTUS Burtum, Linn. l. ©. م‎ Moq.l.c. Low places, near Camp Bache, July; Bigelow.
Introduced from Europe ?

SARRATIA DERLANDIERI, Mog. l. c. p. 268. Mountains of the Cibola, a tributary of the Rio
Grande, August; Bigelow Our specimens are about 18 inches high, which is three times
taller than Berlandier's plant, as described by Moquin.

SARRATIA BERLANDIERI, var. EMARGINATA: foliis oblongo-lanceolatis ; calycis fæminei lacinis
lato-cuneatis, emarginatis. Camp Green, October; Parry. This variety is about a foot high.
Except in the lacini: of the perianth, it does not appear to differ from the preceding.

SARRATIA BERLANDIERI, var. DENTICULATA : foliis lineari-lanceolatis, calycis foeminei laciniis
lato-cuneatis margine eroso-denticulatis. Santa Cruz, Sonora, September; Thurber.

SARRATIA —€— سس‎ var. FIMBRIATA : foliis linearibus; glomerulis subglobosis densifloris,
inferiorib ill ioribus approximatis subspicatis; calycis faeminei laciniis equalibus
flabellato-cuneiformibus وت‎ dentato-fimbriatis. On the Gilariver; Schott. (No. 582, Wright.)
Stem 2 feet or more in length, smooth, branching ; the branches peg Leaves 14-24 inches
long, 11-2 lines wide, smooth, tapering at the base. Glomerules of flowers about one-third of
an inch in diameter, the upper ones aggregated in a long naked spike. Bracts subulate. Peri-
anth parted nearly to the base; the segments spreading, mostly broader than long, abruptly
narrowed to a short claw, the summit cut into irregular acute teeth or lacinise. Ovary globose
ovate; stigmas 3-4. Utricle tubercular-rugous at the summit. Seed lenticular, acute on the
margin, smooth, and shining. This appears to be quite a distinct species.

AMBLOGYNA POLYGONOIDES, Raf. ; Mog. l. c. p. 270. Amarantus polygonoides, Linn, Western
Texas, (No. 1746, Wright.) We have it also from Dr. Gregg, who collected it at Cerro Alto,
Mexico. The genus Scleropus, of Schrader, is founded on an abnormal state of this plant, in
which the peduncles and pedicels have become thickened and indurated. We have it in this

180 UNITED STATES AND MEXICAN BOUNDARY.

state from Key West, collected by Mr. Blodgett, and from the vicinity of New Orleans, where
it was found by Dr. Riddell, Even some of Berlandier’s specimens, which Moquin referred to
Scleropus, are in the ordinary state of Amblogyna polygonoides.

MoNTELIA TAMARISCINA, Gray, Man. Bot. ed. 2, p. 310. Amarantus tamariscinus, Nutt. in
Trans. Amer. Phil. Soc. (n ser.) 5, p. 165. Ravines Rio San Pedro, western Texas, Septem-
ber; Bigelow, who collected only the male plant ; while Wright (under No. 1747) has both sexes.

GUILLEMINEA DENSA, Mog. l. c. p. 338. Plains between the Limpio and the Rio Grande; also
near the Copper Mines, July—August; Bigelow. Sonora; Thurber. On the banks of the
Colorado, California; Schott. (Nos. 584, 585, and 1155, Wright.) Mr. Thurber's plant exactly
accords with the description of Moquin, l. c. ; but our specimens from the other collections have
broader leaves.

GOSSIPIANTHUS RIGIDIFLORUS, Hook. lc. Pl. 3, t. 251; Mog. l. c. p. 337. Western Texas.
(Wright, Nos. 586 and 1754.) This plant occurs only in the collections of Mr. Wright. It is
certainly the same as Drummond's, on which the species was founded. We have no original
specimens of G. tenuiflorus for comparison, but we believe that it is not distinct from G. rigidiflorus.
In our Drummondian specimens of the latter, the plant is in fruit and the stamens are withered.
In the more complete ones of Mr. Wright the filaments are ovate-lapceolate, as they are described
in G. tenuiflorus ; and in both they are connate at the base. The relative length of the bracts
and calyx depends on the age of the flower.

TRESINE VERMICULARIS, Mog. l. c. p. 340. Illecebrum vermiculatum, Zinn. Lower Rio Grande,
in alluvial soils, October, Schott.

IRESINE DIFFUSA, Humb. ) Bonpl. in Willd. Sp. 4, p. 165 ; Mog. l. c. p. 345. Var. foliis ovato-
oblongis; spiculis oblongis; calyce bracteis subduplo longiore staminodiis subulatis staminibus
alternantibus et triplo-brevioribus. Sonora and Chihuahua; Thurber. San Estaban, Septem-
ber; Bigelow. On the Rio Grande, near the Great Cafion; Parry. Perhaps not distinct from
I. celosioides, to which, indeed, some other species of the section Iresinastrum might be referred ;
but we have not found staminodia in any other of this group.

All our specimens are female. No. 589, Wright, is the male plant, in which there are small
subulate staminodia between the filaments ; thus resembling Ireneis, of Moquin, a genus scarcely
distinct from Iresine.

ALTERNANTHERA ACHYRANTHA, Jt. Br. Prodr. p. 417; Moq. 0l. c. p. 358. Achyranthes repens,
Linn. ; Ell. Sk. 1, p. 309. Banks of the Rio Pecos; Schott. Bachimba, Chihuahua; Thurber.
Matamoras; Gregg. Moquin refers Elliott's plant to Telanthera polygonoides, but it certainly
belongs here.

ALTERNANTHERA LANUGINOSA, Torr. in Emory Rep. p. 150; Mog. l. c. p. 359, (pro parte.)
Achyranthes lanuginosa, Nutt. in Amer. Phil. Trans. (n. ser.) 5, p. 166. Common in New
Mexico and Sonora, flowering through the summer. (Nos. 591 and 1756, Wright; Nos. 726
and 727, Fendler; Nos. 835 and 2255, Berlandier.) In Emory's Report I noticed a remarkable
character in the specimens examined. The flowers become imbedded in the branches on which
they grow, so that when in fruit they are partly or wholly concealed ; on which account I pro-
posed to call it Endotheca. This character is, however, not constant, or is only seen in old
specimens. Sometimes the short branches, with the cluster of flowers at the summit subtended
by two or three leaves, will assume the appearance of a pedunculate head, furnished with an
involucre. The peduncle becomes thickened upward, as does likewise the confluent bases of the
leaves, involving more or less the flowers. In the young state the plant is densely woolly with

BOTANY. 181

verticillate hairs, but is nearly smooth later in the season. The staminodia are merely obtuse
lobes between the filaments, or are wanting altogether. According to Mr. Schott the Mexicans
use ۵ decoction of this plant as tea.

ALTERNANTHERA? SUFFRUTICOSA (n.sp.): cinereo-pubescens; caule suffruticosaerecto? ramosissimo;
foliis inferioribus ovatis breviter petiolatis, superioribus verticillatis subternatis suborbiculatis
sessilibus ; glomerulis paucifloris axillaribus sessilibus ; sepalis oblongo-lanceolatis versus apicem
pilosis bracteis duplo longioribus. Mountains near Frontera and between the Pecos and the
Limpio ; Wright, No. 592 and 1757. This species is truly suffruticose; the stems (which seem to
grow erect,) arise from a thick irregular woody base. The A. lanuginosa is always annual and
diffuse ; the leaves are larger, with along abruptly attenuated base, and the glomerules are fewer
flowered.

GOMPHRENA TUBERIFERA (n. sp.:) parce pilosa ; radice tuberosa ; caule erecto ramoso herbaceo ;
foliis lanceolato-linearibus sessilibus integerrimis mucronulatis cinereis ; pedunculis elongatis
simplicibus ; capitulis globosis vel ovatis solitariis plerumque diphyllis ; floribus nitidulis albo-
roseis; calyce bracteis lateralibus subeequali; sepalis acutissimis uninerviis villosissimis. Rocky
banks of the San Pedro and other tributaries of the Rio Grande, Western Texas and in New
Mexico. (Nos. 593 and 1750, Wright.) Root fusiform, 13-2 inches long and about one-third of
an inch in diameter above, fleshy and farinaceous ; stem 1-2 feet high, sparingly branched.

GOMPHRENA DECUMBENS, Jacq ; Moq. l. c. p. 410. Lower Rio Grande, October ; Schott. 8
agrees very well with specimens from Havana, named by Moquin.

GOMPHRENA GLOBOSA : var. ALBIFLORA, Mog. l.c. On the Cibola and other tributaries of the
Rio Grande; Bigelow, Schott. Santa Cruz and Babocomori, Sonora, September; Thurber. (No.
1751, Wright.) ۱

GoMPHRENA SONORA (n. sp.:) caulibus e basi lignosa ortis pilosis; foliis lanceolatis sessilibus
pilosis pallide viridibus ; capitulis terminalibus et lateralibus ovatis simplicibus vel 2-3 conflu-
entibus 2—4-phyllis; floribus flavescenti-vel carneo-albidis ; bracteis lateralibus dorso sursum
angusto-cristatis calyce paullo longioribus, sepalis acutissimis uninerviis villosissimis ; stylo
ovario longitudine apice bifido. Mountains near Santa Cruz, Sonora, Mexico, September;
Wright, (No. 1149,) T'hurber. Stems simple or sparingly branched, slender, 1-2 feet high,
sparingly clothed with appressed hairs. Leaves 1-11 inch long, 3-5 lines wide, acute, the
lower ones narrowed at the base. Axillary heads simple, sessile, about one third of an inch in
diameter ; terminal heads mostly composed of two or three closely aggregated smaller heads.
Lateral bracts about one-fifth longer than the calyx, with a narrow serrated crest above the
middle. Stamineal tube entire to the summit; antheriferous lobes very minute; the lateral ones
liguliform, much shorter than the anthers. Style about as long as the ovary; stigmas cylindrical,
acute, half as long as the style. This species occurs only in the collections of Wright and Thur-
ber, and does not appear to have been hitherto described. It seems to be allied to G. agrestis,
Mart.

GOMPHRENA C&SPITOSA (n. sp.:) humilis; caulibus caespitosis ; caudice lignoso ; foliis obovatis
obtusis subsericeo-villosis, radicalibus basi attenuatis, caulinis binis subsessilibus; pedunculis
brevibus simplicibus ; capitulis terminalibus solitariis ovatis ; floribus nitidis flavescenti-albis ;
calyce bracteis ecristulatis paullo longiore; sepalis obtusiusculis uninerviis villosissimis. Grav-
elly plains near the Organ mountains, New Mexico ; also at the Copper Mines and near Mimbres,
April—May ; Bigelow, Wright, (No. 1572.) Cook's Springs, New Mexico; Thurber. Rio de
Santa Cruz, &c., Sonora ; Schott, Capt. E. K. Smith .No. 1753, Wright, is a glabrescent state
of this species. Stem or rather caudex 1-2 inches long, thick and somewhat ligneous, throwing

182 UNITED STATES AND MEXICAN BOUNDARY.

up a tuft of spreading or decumbent branches, which are 14-4 inches long, and, when young,
are densely clothed with a whitish pubescence. Radical leaves an inch or more in length, exclu-
sive of the petiole, which is about an inch long; in the young state pubescent, with almost
silky white hairs, but finally smoothish ; cauline leaves similar, but with very short petioles, or
nearly sessile. Heads about three-fourths of an inch long. Bracts very acute, thin and hyaline,
entirely without a keel. Sepals somewhat rigid, extremely villous. Filaments united nearly
to the summit ; the lateral processes often reduced to small teeth, or sometimes almost wanting.
Style deeply bifid. :

FRELICHIA FLORIDANA, Mog. l. c. p. 420. Oplotheca Floridana, Nutt. Gen. p. 19; Bart. Fl.
N. Amer. t. 59. On the Limpio and near Van Horn’s Wells ; Bigelow. Presidio del Norte ;
Parry. May—July. |

ERGLICHIA DRUMMOXDII, Mog. l.c. Rio Coleto and near El Paso ; Thurber. Sandy beach of
the lower Rio Grande, April; Schott. Too near the preceding species, which, again, seeras to
be scarcely distinct from F. interrupta.

FRe@LICHIA eRACILIS, Mog. l. c. Oplotheca gracilis, Hook. Ic. sub t. 256. Alluvions of the
Rio Grande and at the Copper Mines, August—October ; Bigelow. On the Guadalupe river,
Texas; Schott. Chihuahua and Sonora; Thurber. A smaller species than the two preceding.

CHENOPODIACE X.

TELOXYS CORNUTA, Torr. Bot. Whippl. Exped. p. 129. Hills and rocky places near Santa Rita
del Cobra, October, (in fruit ;) Bigelow. Some of the specimens are nearly two feet high.

CHENOPODIUM ALBUM, Linn; Mog. l.c.p. T1. Doña Ana, New Mexico, Sonora and Chihua-
hua, April—July ; Thurber. (Nos. 1731 and 1732, Wright.)

CHENOPODIUM ANTHELMINTICUM, Linn.; Mog. in DC. Prodr. 13, pars 2, p. 73. Various places
New Mexico and western Texas ; probably introduced.

Burtum Bonus-Henricus, Reich.; Mog. in DC. l. c. p. 68. In fertile grassy places near San
Luis Rey ; Parry ; and near San Diego, California; Thurber. Doubtless introduced from
Europe. i

OBIONE CANESCENS, Mog. in DC. Predr. 13, pars 2, p. 212. Abundant at the foot of San Diego
Bay, California ; Parry. It forms dense thickets, 3—5 feet high.

OBIONE HYMENELYTRA (Torr. in Bot. Whippl. Exped. p.129, t. 20): caule fruticoso ramosissimo,
ramis inermibus teretibus ; foliis subdeltoideo-orbiculatis vel basi truncatis grosse acuteque den-
tatis dense lepidoto-incanis ; floribus dioicis ; bracteis reniformi-orbiculatis membranaceis integer-
rimis basi coalitis, disco nudo. Desert of the Colorado and on the Lower Gila, in saline soils ;
Schott. A shrub apparently 2-3 feet high, the branches very crooked and interlaced. Leaves
1-14 inch in diameter, the margin cut into coarse, more or less acute salient teeth. Male flowers
in dense glomerules, which are collected into axillary and terminal paniculate spikes. Fructi-
ferous bracts more than one-third of an inch in diameter, reticulately veined, only united at the
base, the short pedicel tumid and spongy.

OBIONE ARGENTEA, Mog. Chenop. 76, & in DC. Prodr. l. c. p. 115. Atriplex argentea,
Nutt. Gen. 1, p. 198. Valley of the Pecos, September ; Bigelow. Annual; stem much branched
and at length diffuse, the branches angular and flexuous, nearly smooth. Leaves triangular or
somewhat deltoid, subsessile, often nearly entire but usually more or less toothed, membrana-
ceous, Male flowers in glomerated interrupted terminal spikes ; female flowers in sessile axillary

BOTANY. 183

clusters, Fructiferous bracts pedicellate, suborbicular, the margin acutely and often irregularly
toothed, disk naked, or sometimes cristate with foliaceous appendages.

OBIONE CONFERIIFOLIA, Torr. & Frém. in Frém. 2d Rep. p. 318. Mountains near Laguna de
Santa Maria, Chihuahua, April; Bigelow. Only the male plant was collected.

OBIONE RADIATA (n. sp.): caule erecto? herbaceo ramoso, ramis inermibus; foliis obovato-
oblongis obtusissimis mucronulatis membranaceis integerrimis vel obsolete repando-dentatis basi
attenuatis utrinque lepidotis canescentibus ; glomerulis foemineis axillaribus ; bracteis sessilibus
orbiculatis infra mediam coalitis margine radiatim denticulatis, disco inappendiculato carinulato.
Alluvions of the Gila, Sonora, May ; Schott. Stem apparently annual and about a span long ;
the branches flexuous. Leaves 8-12 lines long and 3-5 lines broad. Male flowers in small
terminal spikes ; female flowers in small axillary clusters. Fructiferous bracts almost exactly
orbicular, very flat, 1} line in diameter, neatly cut around the margin into very short acute
teeth, the disk marked with a central, longitudinal, slightly prominent keel. We cannot
identify this plant with any of the species of Obione described by Moquin ; it is most nearly
related to the following :

OBIONE ELEGANS, Moq. l. c. p. 118, var.? RADIATA. Rio Sta. Murin, Chihuahua, August;
Thurber. Western Texas, (No. 571 and 1743.) We are not confident as to our determination
of this plant. Our specimens are certainly annual; the leaves are rather obtuse than acute ;
the fructiferous bracts are scarcely pedicellate and they are united to the middle. The margin
is cut into strong acute radiating teeth.

OBIONE ELEGANS, var.? TUBERCULOSA: foliis repando-denticulatis; bracteis orbiculatis, margine
dentatis, disco tumido cartilagineo medio tuberculoso-dentatis. Western Texas; Wright. Plant
about a foot high, apparently annual. Differs from the last, chiefly in the tumid fructiferous
bracts, the disks of which, on each side of the median line, are furnished with 2-3 acute
tubercles.

OBIONE ACANTHOCARPA (n. sp.): caule suffructicoso erecto ramoso, ramis subteretibus iner-
mibus ; foliis deltoideo-lanceolatis spathulatisve integris vel repando-dentatis densissime lepidotis
incanis floribus dioicis ; glomerulis interrupte spicatis, spicis masculis paniculatis terminalibus;
bracteis demum ultra medium in thecam sessilem subglobosam subcartilagineam undique
spinosam coalitis. Plains between the Burro mountains; September, Bigelow, (in fruit.) On
the Rio Grande, below Presidio del Norte ; Parry. Near the Piloncilla, Sonora, September ;
Thurber. (No. 1739; Wright. His No. 1737 seems to be a slender form of the same.) Plant
1-2 feet high, much branching from the ground. Leaves somewhat persistent, about an inch
long, often somewhat hastate at the base, usually somewhat repand-dentate or denticulate.
Fertile flowers glomerate in the upper axils, forming a kind of leafy panicle. Male spikes panicu-
late, nearly naked. Fructiferous bracts indurated, covered with long flat or compressed rigid
processes which resemble spines. Near Fort Yuma, California, Major Thomas collected an
Obione which appears to be a variety of this species. It sometimes attains the height of 6—10
feet. The leaves are deltoid-ovate, very obtuse and somewhat undulate. Only the male plant
was found. It is the same as O. Barclayana of Durand and Hilgard’s Report of Williamson's
Expedition, but apparently not of Bentham.

OBIONE CANESCENS, Mog. in DC. Prodr. 13, pars 2, p. 212. Abundant at the foot of San Diego
Bay, California ; Parry. Valley of the Rio Grande, from El Paso to Eagle Pass; also on the
Gila. (No. 1740 and 1741, Wright.) A variety with smaller, ovate or obovate leaves was.
found on the Burro mountains by Dr. Bigelow ; and on the Gila by Mr. Thurber. It is the same

) dm

184 UNITED STATES AND MEXICAN BOUNDARY.

as Wright’s No. 1738, and Berlandier's No. 1346; the latter from San Luis Potosi. Gregg
found it also at Cerros Bravos, Mexico.

OBIONE OCCIDENTALIS, Mog. l. c. Near the Copper Mines and at Santa Barbara; also on the
San Pedro; Bigelow. On the Pecos and in Chihuahua ; Thurber. El Paso; Wright. Remark-
able for its large broadly 4-winged fruit. These wings are either entire or more or less deeply
toothed ; rarely cut into narrow lobes. The bracts adhere nearly to the summit, while in O.
canescens they are united only toward the base.

OBIONE OCCIDENTALIS, var. ANGUSTIFOLIA: foliis angusto-linearibus vel lanceolato-linearibus.
Valley of the Rio Grande, from El Paso to 40 miles below San Elceario; Bigelow, Wright. Onthe
Gila; Thurber. (No. 1742, Wright.) Gregg found it in various places in New Mexico, where
it is called Chanuzo. It seems to be closely related to O. linifolia, Mog.

卫 UROTIA LANATA, Mog. Chenop. p. 81; Torr. & Gray in Bot. Pope's Rep. p. 124. Diotis lanata;
Pursh, Fl. 2, p. 602. Hills near the Copper Mines, New Mexico.

CoRISPERMUM HYSSOPIFOLIUM, Linn.; Mog. l. c. p. 141. Sandhills, Chihuahua ; Thurber. Allu-
vions of the Rio Grande; Schott, Parry.

ARTHROCNEMUM MACROSTACHYUM, A. Bunge in Linnea, 28, p. 513. Arthrocnemum fruticosum,
; macrostachyum ; Mog. Chenop. p. 111, & in DC. l. c. p. 151. Salt marshes between Co-
manches and Leon Springs, November; Schott. Rio Pecos; Thurber. Santa Rosa, Cohahuila ;
Bigelow. Plant 1-2 feet or more in height. (No. 1745, Wright.) According to Bunge (l. c.)
Moquin and Fenzl have not distinguished, by reliable characters, Arthrocnemum from Sali-
cornia. To the former genus he refers those species in which the seed is albuminous, and the
embryo curved ; in the latter those which have exalbuminous seeds and a conduplicate embryo.

SALICORNIA MUCRONATA, Lagasca Pl. Barill. ex Mog. Chenop. p. 115. On the beach at Brazos
Santiago, May ; Schott. "This plant is shrubby and apparently as tall as the preceding species ;
the specimen being only a branch, and more than a foot long. I am now inclined to regard it
as distinct from S. mucronata of Bigelow, which is a humble annual with thicker spikes, and
the flowers more deeply immersed in depressions of the rachis. The latter may be called ۰
Bigelovii.

SUÆDA MARITIMA, Dumort.; Torr. Fl. New York, 2, p. 141. Saline soils, Leon Springs, Sep-
tember; Bigelow. Plant apparently 3-4 teet high.

Su pA FRUTICOSA (Forsk.) var. ? MULTIFLORA, Torr. Bot. Whippl. Exp. p. 130. Sandy hills and
ravines near Presidio del Norte, August; Bigelow. Rio Pecos; Thurber.

PHYTOLACCACEA.

Rivina LEVIS, Linn.; Mog. 1. ©. .مز‎ 11. R. portulacoides, Nutt. Trans. Amer. Phil, Koc., n.
ser. b, p. 167. Common in alluvions throughout the valley of the Rio Grande and its branches
below El Paso; west to Cocospora, Sonora. (Nos. 1729 and 1730, Wright.) The branches and
leaves are sometimes more or less pubescent.

PuvToLACCA DECANDRA, .Linn.; Mog. l. c. p. 32. Mouth of the Rojo San Felipe, September ;
Schott. The specimens seem to belong to a depauperate form of the plant. The racemes are
only 6-10-flowered.
ظ‎ LAURACEX.

OREODAPHNE CALIFORNICA, Nees. Syst. Laur. p. 463; Torr, Bot. Whipple’s Rep., p. 133. In
various parts of California, especially in mountainous districts; Parry, Thurber. Besides th?

BOTANY。 185

popular names of the plant mentioned in the report here quoted, it is called Sassafras-Laurel,
Cajeput Tree, and California Olive. The fruit varies from ovate or obovate to nearly globose.

SANTALACE.

CoMANDRA UMBELLATA, Nutt. Gen, 1, p. 157. Var. ANGUSTIFOLIA. C. pallida, 8 angustifolia,
Alph. DC. Prodr. 14, p. 637. Hueco mountains and at the Copper Mines, New Mexico; also
in western Texas, Chihuahua, and Sonora, April. (Nos. 783 and 784, Wright.) We have
specimens that connect this variety with the ordinary form of the plant.

LORANTHACE.E.

PHORADENDRON PAUCIFLORUM, Torr. in Whipple's Rep. p. 134. Sierra del Pajarito, Sonora ;
growing on Juniperus; Schott. Yanos; Capt. E. K. Smith.

PHORADENDRON CALIFORNICUM, Nutt. in Jour. Acad. Phil. (n. ser.) 1, p. 185; Torr. l.c. On
cotton-wood (Populus monilifera) along the lower Colorado of California, March and February ;
Schott. On mesquit trees (Algarobia glandulosa), borders of the Gila and near Eagle Pass,
western Texas; Parry, Schott. Fructiferous spikes variable in length.

PHORADENDRON FLAVESCENS, Nutt. l.c. var. GLABRIUSCULUM, Engelm. in Gray, Pl. Lindh. 2, p.
212. Common in the valley of the Rio Grande, on Algarobia (with male flowers only); Schott.
On the Mimbres, in fruit ; Bigelow. The male spikes vary considerably in length and in the
number of their joints. Sometimes they exceed the leaves. The axis between the joints is
thickly covered with flowers, sometimes to the number of 60 or more.

Var. PUBESCENS, Engelm. l.c. Howard’s Springs; Bigelow.

PHORADENDRON JUNIPERINUM, Engelm. in Gray, Pl. Fendl. p. 59. Near the Copper Mines, New
Mexico; Bigelow. Howard’s Springs; Parry.

ARCEUTHOBIUM CAMPYLOPODUM, Engelm. l.c. On pine trees near Monterey, California; Parry.
The fertile plant only was collected.

EUPHORBIACEAE.

The genus Euphorbia has been kindly elaborated for this report by my friend George Engel-
mann, M. D.

§ I. ANISOPHYLLUM.

EUPHORBIA PETALOIDEA : patulo-ramosissima ; foliis oblongis oblongo-linearibus linearibusve
retusis mucronatis ; glandulis albo-appendiculatis ; seminibus levibus.

a. NICOLLETII : foliis stylisque brevioribus ; anthodiis cymulosis ; seminibus ovatis.

B. INTERMEDIA : foliis angustioribus ; stylis longioribus ; anthodiis cymulosis.

y. NUTTALLI: foliis linearibus ; anthodiis alaribus ; appendiculis orbiculatis ; stylis elongatis,
seminibus subglobosis. E. arenaria, Nutt. Pl. Arkans. p. 171, non H. B. K.

0. FLAGELLIFORMIS: priori similis, sed appendiculi minimi, styli breves. Of these varieties
« and 8 have not been found within the districts explored by the Boundary Commission, but
they probably occur there. The var. y is common in Texas. Wright’s 1826, belongs to var.
ò, à New Mexican form.

EUPHORBIA SERPENS, H. B. K. E. herniarioides, Nutt. l. c. p. 171. In the southwestern parts

à 24 k

186 UNITED STATES AND MEXICAN BOUNDARY.

of North America (abundant on the Mexican boundary line) and throughout Central and South
America, but not in the eastern States. E. microphylla, Roth, from India, is the same
plant. i

EUPHORBIA REVOLUTA (nov. spec.): erecto-patula; foliis linearibus revolutis obtusis basi sub-
æqualibus, stipulis setaceis ; anthodiis. alaribus ; glandulis anguste appendiculatis ; stylis
recurvis apice bifidis ; capsula acute angulata, seminibus angustis acute angulatis transverse
rugosis. (Gravelly hills near Rock creek; Bigelow. On the Rio Grande; Wright, No. 1830.)
New Mexico; Fendler, No. 789. Very slender, 4-5 inches high ; leaves 6-10 lines long and 4
line wide. Habit like a small slender E. petaloidea, but styles and seeds very different.

EUPHORBIA potycarpa, Benth. Bot.. Sulph. p. 50. Dry soils near San Diego, California ;
Parry, Schott. Banks of the Gila; Major Emory. Sonora; Wright, No. 1854. This 18 a very
variable plant, if all the forms which I refer to here really belong to it.. Seeds smooth or
undulate, appendages none, or small or large; plant smooth or pubescent, (and then always
with short patulous hairs.) Collected by all the botanists from the upper Gila to San Diego.
The only species of the section Anisophyllum which, so far as I know, has both smooth and
pubescent forms, with the exception of E. hypericifolia.

EUPHORBIA ARIZONICA, (nov. spec.): erecto-patula ; foliis e basi lata subæquali ovatis obtusis
pilosis ; stipulis inconspicuis; anthodiis alaribus longius pedunculatis ; appendicibus glandula
purpurea multo majoribus obovatis tubo turbinato postice fisso brevioribus; stylis erectis ad
medium bifidis ovario puberulo longioribus, stigmatibus filiformibus ; capsula pilosa ; seminibus
rugoso-verrucosis ad angulos acutos crenulatis. Sierra Yanos, Sonora, July ; Schott. Stems
4-5 inches high ; leaves 3-4 lines long, 24-3 lines wide. Seed very small, involucrum with
the appendage 14 line in diameter.

EUPHORBIA PEDICULIFERA (nov. spec.): procumbens, cinereo-pubescens ; foliis ovatis obtusius-
culis ; stipulis e basi lata lanceolatis ; glomerulis parvifloris in ramulis alternis terminalibus;
involucris hemisphaericis ; glandulis magnis; appendicibus transversis crenatis; stylis patulis
pubescentibus ad basin fere bifidis; stigmatibus divaricatis ; capsula acute angulata pubescente,
seminibus compressis angulatis sulcis 4 profundis transverse incisis. Sonora; Wright, (No. 1848,) E.
Schott. Spreading 6-12 inches. Leaves 3-4 lines long, oblique. Involucrum large. Seeds t
0.7 line long, deeply 5-lobed, similar to some insects.

` EUPHORBIA FENDLERI, Torr. & Gray, Bot. Pope's Hep. p.19. E. rupicola, Scheele in Linnea,

22, p. 153, non Boiss. Common in New Mexico and Western Texas; Lindheimer, Wright,
Bigelow. Sonora; Thurber. Variable in the form of the leaves and the shape or presence of
the appendages.

EUPHORBIA ALBOMARGINATA, Torr. & Gray, l. c. p. 18. Common in the whole region between
western Texas and the Great Colorado, and southward into Mexico. It is No. 330 of Drum-
mond’s second Texan Collection.

EUPHORBIA CINERASCENS (nov. spec.): erecto-patula s. subdecumbens, pubescenti-canescens ;
foliis e basi lata obliqua ovatis s. suborbiculatis obtusis supra glabratis ; stipulis lanceolatis
minutis mox deciduis ; glomerulis lateralibus ; involucris canis ; glandulis (plerumque purpureis)
angustissimis marginatis; stylis brevibus pilosis; capsula acute angulata cana; seminibus
ovatis acute angulatis leviusculis. On the Rio Grande; Wright. Chihuahua and Sonora ;
Thurber. Bishop’s Hill, near Monterey, Mexico; Gregg.

B. APPENDICULATA : foliis utrumque cinereis ; appendicibus majoribus truncatis crenulatis ;
stigmatibus longioribus. San Felipe, California; Dr. Le Conte, 1 hurber ; and San Gabriel,
Bigelow. Stem 4-6 inches high ز‎ rounded lodi often tawny red, 11-2 die long ; ; flowers

BOTANY. 187

few. Mr. Thurber informs us that this plant is called. Yerba de la Golondrina in Sonora. The
Mexicans believe it to be a certain cure for the bite of a rattlesnake and other poisonous animals

The bruised fresh plant or the dried, steeped in wine, is applied to the wound. A tincture of
the plant is sometimes kept in the apothecarys’ shops of that country. ات‎ to Dr. Gregg,
the name Golondrina is applied to all the prostrate Euphorbie.

EUPHORBIA INJEQUILATERA, Sonder in Linnea, 23, p. 105. I cannot distinguish from this plant
of the Cape of Good Hope a species of the plains of Nebraska, Kansas, and Texas, and which
extends into New Mexico, California, and Oregon. There it has been collected since the
explorations of Nicollet and Frémont by almost every traveller, (e. g., Fendler, 191, 795, 803 و‎
Wright, 666, 1823, (in part,) 1846.) The same plant has been sent from Florida by Blodgett
and Chapman, is found on the West India Islands, is undoubtedly the E. Nilagirica, Miq., of
India, and has also been observed in New Holland ; but it seems unknown in other States east
of the Mississippi.

EUPHORBIA GLYPTOSPERMA (nov. spec.): erecto patula seu demum decumbens; foliis e basi
valde obliqua (latere inferiore producta) æquilatis oblongis s. oblongo-linearibus obtusis versus
apicem subserratis s. integriusculus ; stipulis setaceis laciniatis, anthodiis alaribus demum in
glomerulos laxos laterales confertis ; appendiculis brevibus integris seu crenatis ; stylis brevibus
apice bilobis, stigmatibus subglobosis ; seminibus ovatis argute rugosis ad angulos acutos
crenatis. E. polygonifolia, Hook. Fl. Bor. Am. fide spec. auctoris non Linn.

B. TENERRIMA : foliis parvulis angustis apice vix crenulatis ; involucri minuti glandulis vix
seu non appendiculatis. On the Rio Grande; also on the Arkansas, and extending to the
upper Missouri. (No. 1853, 1855, and 1856, Wright.) From a few inches to a foot high. The
larger northern forms have leaves 3 to 6 lines long and 1 to 2 lines wide. In 8 the leaves are
1 to 3 lines long and 4 to 1 line wide; involucrum in the latter only 0.3 line long. Seed very
sharply cross-ribbed, similar to that of E. prostrata, and notched at the angles.

EUPHORBIA STICTOSPORA (nov. spec.): erecto-patula, foliis e basi obliqua subcordata orbiculatis
seu ovatis argute serratis supra subnudis; stipulis subulatis ciliatis ; glomerulis lateralibus
sessilibus ; glandulis angustis appendiculatis ; stylis ovario pubero brevioribus patulis indivisis ;
stigmatibus 3 capitatis; capsula puberula; seminibus angustis acute angulatis exsculpto-
punctatis. From Kansas (Fendler, 798,) to Santa Fé (Fendler, 797) and Doña Ana, (Wright.
59,) New Mexico, and Corallitas, Chihuahua; Thurber. Stem 3-6 inches high. Leaves 2-4
lines long ; apparently near E. prostrata, but styles and seeds very different.

EUPHORBIA PROSTRATA, Ait. This variable and often mistaken species is found from western
Louisiana (Dr. Hale) to Texas; (Lindheimer, 533 ;) (Berlandier, 1100, 2530 ;) (Wright, 1848
in part, 1855 in part.) It seems to be a common plant in the West India islands, Mexico, and
South America. It occurs in Africa and India. Zuphorbia tenella, H. B. K., and E. callibri-
choides, H. B. K., are forms of the same species, which can always be recognized by the ciliate
angles of the capsule and the sharply rugose seeds, notched at the angles.

EUPHORBIA DIOICA, H. B. K. (E. anceps, Benth. E. callibrichoides; Schauer, etc.,) a common
and very variable plant of Mexico, Central America, and the West India islands, has been
collected by Dr. Antisell on the upper Rio Grande.

. Var.? INDIVISA, distinguished by the annual root, the less coriaceous, less oblique and less
distichous leaves, the more scattered involucra and the undivided styles; has been found near the
. Copper Mines, New quss by Mr. Wright, (No. 1845) and in Sonora by Mr. Thurber,
a ied Panel

188 UNITED STATES AND MEXICAN BOUNDARY.

EUPHORBIA SERRULA (nov. spec.): patula seu decumbens; caule patenter piloso ; foliis e basi
valde obliquo obtusiuscuia seu subcordata oblongis sspe falcatis obtusis argute grosseque
serratis, subtus pilosis; stipulis lanceolatis laciniatis; glomerulis lateralibus appendicibus
angustis integris seu crenulatis; stylis ovario glabro brevioribus patulis ad basis fere bifidis ;
seminibus ovatis levibus costato-angulatis. Western Texas and New Mexico. (No. 658, 1843
and 1844, Wright. No. 796 and 804, Fendler.) Stems 4-6 inches long. Leaves 3-5 lines
long, 1-3 lines broad, sharply and coarsely serrate; seeds larger than in all the foregoing
species, 0.8 line long, remarkably angled.

EUPHORBIA VILLIFERA, Scheele in Linnea 22, p. 153. Western Texas; Berlandier, 2084 :
Lind heimer, 530; Wright, Thurber. In various parts of Mexico; Gregg. Root annual, stems
erect, often a foot high.

EUPHORBIA HYPERICIFOLIA, Linn. Sp. 1, p. 454. New Mexico; Wright. (No. 1842 in part )
Chihuahua; Thurber. The true Linnean plant probably comes from the West Indies and
other tropical countries, and has also been sent from Florida by Dr. Chapman. It is distin-
guished by smaller anthodia, generally disposed in denser clusters, smaller capsules and smaller
paler seeds. The common North American form, which has also been collected abundantly
along the boundary, has larger and more scattered anthodia, larger capsules and larger blackish
seeds, and may be distinguished as var. communis, as it seems to be the more common form
throughout the warmer countries around the whole globe.

EUPHORBIA PILULIFERA, Linn. Û DISCOLOR : diffusa ; foliis e basi valde obliqua ovatis subrhom-
boideis acutiusculus serratis, purpureo-maculatis, stipulis subulatis, capsula parvula pilosa,
seminibus minutis ovatis acutis undulato-tuberculatis. Sonora; Thurber. Wright, No. 1842,
in part. Mr. Blodgett found it in Florida. Stems j-1 foot long. Leaves 1-12 inch long;
differs in shape and color of leaves from the usual forms of E. pilulifera ; hair of the stem as
in all forms of this species yellow and jointed ; involucre only 4 line long; heads 3-1 lines in
diameter ; seed scarcely more than } line long.

EUPHORBIA CAPITELLATA (nov. spec.) : annua, erectiuscula seu demum diffusa ; caulibus elonga-
tis puberulis; foliis e basi valde obliqua oblongo linearibus subnudis argute serrulatis mucronatis ;
stipulis lanceolatis laceris; glomerulis densifloris terminalibus fere aphyllis; involucri glandulis
longius stipitatis, appendiculis orbiculatis s. late obovatis integris; stylis ovario hirto longio-
ribus ad medium bifidis; stigmatibus filiformibus divaricatis; capsula puberula; seminibus
ovatis acutatis angulatis rugoso-tuberculatis. Valleys at San Bernardino, Sonora; Wright,
(No. 1,849.) Stems 6-10 inches long; leaves 6-8 lines long, 2 lines wide; heads white, showy,
4-6 lines in diameter.

EUPHORBIA PYCNANTHEMA (nov. spec.) : perennis, erecto سسید‎ canescente-pubescens ; foliis e
basi lata obliqua cordata ovatis s. oblongis obtusiusculis saepe mucronulatis integris s. subserru-
latis, scabris ; stipulis lanceolatis fissis ; glomerulis terminalibus multifloris quasi involucratis ;
involucris pilosulis (primariis) late orbiculato-appendiculatis seu (secundariis) subnudis و‎ stylis
fere ad basis fissis patulis ; stigmatibus divaricatis clavellatis ; capsula subglobosa pubescente ;
seminibus acute angulatis transverse rugulosis punctatisque. Mountain sides near Lake Santa
Mari ; Chihuahua; Wright. Numerous stems 6 inches high, from a thick ligneous root ; leaves
nes long. General appearance of a small labiate plant with terminal involucrate heads.
many respects to the last, but more erect, more hairy, leaves shorter. © Remarkable
n involucres on the same head, reminding one of Hydrangea or some Umbellifera.

EUPHORBIA اله‎ E epee Torr. & Gray, Bot. لع‎ 8 0 z 19; non Hochst. i in Bichard.

BOTANY. 189

Flor. Abyssin. Western Texas, San Pedro; Wright, No. 1841. On the Cimaron; Fendler,
No. 794. Eagle Springs; Bigelow.

EUPHORBIA ACUTA (nov. spec.): perennis, multicaulis, erecta, foliosa, hirsuta; foliis e basi
obtusa subzequali lanceolatis acutatis cartilagineo-mucronatis supra nudis ; stipulis filiformibus
mox deciduis; anthodiis versus caulis apicem alaribus s. pseudoaxillaribus sparsis; involucris
hemisphericis appendicibus truncatis crenatis lobatisve; stylis patulis ultra medium bilobis,
ovario cano longioribus capsula cana; seminibus subcubicis acutis acute angulatis levibus.
Stony prairies western Texas, along the San Pedro and Pecos rivers, &c.; Bigelow, Schott. (No.
1739 and 1749, Wright.) Stems 4-1 foot high; stiff rigid, leaves 6-10 lines long, 3-6
lines wide, well characterized by the very acute point; seeds 1 line long.

EUPHORBIA ANGUSTA (nov. spec.) : perennis, erecta, elatior, rigida ; foliis lanceolato-linearibus
basi acuta subeequalibus acutis integris demum glabratis; stipulis subulatis minutis deciduis ;
anthodiis pseudoaxillaribus sparsis ; appendicibus truncatis crenatis sæpe bilobis erectis; stylis
brevibus erectis apice bilobis; capsula cana acutangula; seminibus ovato-cubicis acutangulis
transverse rugosis foveolatis. In rocky places western Texas; Lindheimer, No. 694; Wright,
No. 1828. On the Rio Grande; Schott. Erect, 6-15 inches high; several stems form a large
black perennial root with few or numerous elongated branches; leaves few, 6-15 lines long,
1-2 lines wide. Seeds 0.8 line long, strongly marked.

EUPHORBIA FLORIDA (nov. spec.): annua, erecta, patulo-ramosa, glaberrima ; foliis lanceolato-
linearibus seu linearibus in petiolis attenuatis serrulatis mucronatis ; stipulis lineari-subulatis
ssepe 2-3-fidis; involucris alaribus in cymulas terminales laxas congestis; pedunculis petiolum
longe superantibus ; lobis involucri ovatis acutis seu acuminatis ciliatis seu rarius laceris; ap-
pendieibus magnis (involucro ipso majoribus) orbiculatis seu ovatis petaloideis integris; stylis
ovarium squantibus seu superantibus basi coalitis ad medium seu ultra bifidis; stigmatibus
filiformibus ; capsula obtuse angulata ; seminibus subcubicis acute angulatis levibus transverse
2-costatis. Sonora; Wright, (No. 1829,) Thurber, Schott. Stem 1-1 foot high; leaves 12-18
lines long, 1-14 line broad ; margin revolute, and serratures thereby often invisible. Involucre
with large bright white appendages, 3 lines in diameter.

EUPHORBIA TRACHYSPERMA (nov. spec.): annua, erecta, glaberrima ; foliis e basi subzequali
obtusa seu angustata oblongo-lanceolatis serratis mucronatis ; stipulis filiformibus seu subulatis
setaceo-fissis ; anthodiis alaribus demum in cymulas paucifloras terminales s. laterales confertis ;
appendicibus angustis albis ; stylis ultra medium bifidis ; capsula obtusangula; seminibus sub-
cubicis faciebus leviusculis, angulis acutis crenatis asperatis. San Pedro; Sonora, Wright,
No. 1832. Slender, erect, about 1 foot high, branches erect, few ; leaves 9-12 lines long, 2-3
lines broad ; seed 1 line long.

EUPHORBIA EXSTIPULATA (nov. spec.): annua, erecto-patula, ramosa, glabriuscula seu minute
sparsimque aspera ; foliis lanceolatis seu lanceolato-linearibus argute serratis basi equali in
petiolem brevem angustatis; stipulis subnullis s. glanduliformibus; anthodiis alaribus solitariis ;
pedunculis petiolo brevioribus; appendicibus anticis plerumque 2-lobatis, posticis majoribus 4-
lobatis; stylis ovarium ad angulos scabrum equantibus, profunde bipartitis; stigmatibus
filiformibus; seminibus magnis subcubicis verrucosis et transverse 2—3-costatis. Western
Texas; Wright, (1833 and 1838.) New Mexico; Fendler, (No. 790.) Sonora; Thurber, Bigelow,
Parry. Stem about 6 inches high; leaves about 1 inch long, 1-2 rarely 3 lines wide, some-
times not absolutely opposite, but a little separate; seed 1 line long, with thick cross-ribs, A
transition form to the next sections.

TE DITA EEEE NET‏ ۍټه
ees ei ee‏
ركد رن m e(—‏ وس iii an‏ :
a E ^ 2,‏
een * 9‏ لعلف ۳ » 23

1

190 UNITED STATES AND MEXICAN BOUNDARY.

$ II. ZYGOPHYLLES.

EUPHORBIA HEXAGONA, Nutt. in Spreng. Syst. 3, p. 191. E. heterantha, Nutt. in Trans. Amer.
Phil. Soc. (n. ser.) 5, p. 113. Rio Coleto, Texas; Thurber. ‘‘Many years ago Mr. Nuttall
gave me specimens of this plant, named E. hexagona. Part of these were sent to Sprengel,
who first published a description of the species in the work quoted. Eight years afterwards
Mr. N. described the plant under another name. It is remarkable for being polygamous ; most
of the involucres containing only male flowers.’’—Torrey, MSS.

EUPHORBIA BILOBATA (nov. spec ): annua, erecta, gracilis; foliis oppositis breviter petiolatis lan-
ceolato-linearibus acutatis integris glabriusculis, rameis angustioribus ; anthodiis alaribus
campanulatis; glandulis bilobis, appendiculis binis lanceolatis seu abbreviatis ; stylis vix basi
connatis ad medium bilobis ; stigmatibus erectis subteretibus ; capsula leviuscula, seminibus
ovatis acutis angulato-tuberculatis. Near the Copper Mines, New Mexico ; Bige! w. Eastern
Sonora; Wright, (No. 1831.) Stems 6-15 inches high; leaves 10-15 lines long, 1- 2 lines broad;
seeds 0.8 line long, strongly tuberculate and almost angular. Glands remarkable and very
constant in shape; appendages white. Near E. hexagona; distinguished by the acuter more
uniform leaves, bilobed glands, terete stigmata and smaller tuberculate seeds.

EUPHORBIA BIFURCATA (nov. spec.) : glabra; caule erecto dichotomo ; foliis oppositis ovatis seu
obovatis in petiolem gracilem subequilongum angustatis argute serratis obtusis basi glanduloso
stipulatis; anthodiis alaribus breviter pedunculatis ; lobis 5 ovatis truncatis fimbriato-multifidis ;
glandula singula cyathiformi late albo-appendiculata, appendice transverso emarginato ; stylis
basi coalitis ad medium bifidis, stigmatibus filiformibus. Moist places, Valley of the Limpio,
July ; Bigelow. Over a foot high ; leaves 1 inch long, j inch wide; petiole a little shorter
than leaf.

$ ۰

EUPHORBIA DENTATA, JMichz.; f£ RIGIDIA : humilior rigida; foliis parvis coriaceis reticulato-
venosis scabris margine UGGS Head of San Pedro river ; Wright. (No. 1837.) Near
Monterey, Mexico; Dr. Edwards. y. CUPHOSPERMA : erecta, stricta, dentata seu parce pilosa ; :
foliis lanceolatis seu lineari-lanceolatis elongatis subdentatis ; capsulis glabris seu pilosis ; semi-
nibus majoribus tuberculato-angulatis. Copper Mines, New Mexico; Wright, (No. 1834,) to
Sonora ; Schott. Ojo de Gabilari, Chihuahua; Thurber. — ۱

EUPHORBIA HETEROPHYLLA, Linn. (E. cyathophora, Murr.) Var. GRAMINIFOLIA : foliis angusto-
linearibus. Crevices of rocks and dry beds of rivers. Rio San Pedro, Texas; Bigelow, Schott,
Wright, (No. 653.) South of El Paso; Wright, (No. 1835.)

EUPHORBIA BARBELLATA, (NOV. spec.): annua, erecta, glabriuscula ; foliis sparsis linearibus seu
lanceolato-linearibus seu ovatis lobatisque breviter petiolatis parce argute dentatis, subtus ad
nervum medium parce pilosis, basi pilis longioribus confertis barbatis; foliis floralibus ovatis
seue basi dilatata elongatis, basi roseis ; anthodiis glomeratis majusculis ; glandula singula
sessili lobis inciso-dentatis breviore ; stylis brevibus erectis basi vix connatis ad medium bifidis.
On the Rio Grande, near Eagle Pass; Wright. Rio Frio; Bigelow. Near E. heterophylla, but
stouter, leaves very sharply serrate, involuere larger, MES shorter. Leaves 2-4 inches long,
jori inch-1 or 2 coms wide. Beard of coarse hair at base of leaves very conspicuous.

EUPHORBIA | COLORATA Sum spec.): erecta, glaberrima ; foliis breviter petiolatis sparsis patu-

BOTANY。 191

lis elongato-linearibus revolutis integris ; foliis floralibus basi paullo dilatatis puniceis subinde
circinatis ; glandulis 1-2 stipitatis cyathiformibus compressis margine revoluto sepe crenulatis
involucri lobos laciniatos coloratos superantibus ; stylis brevibus purpureis erectis longe connatis,
apice bifidis, stigmatibus acutis demum recurvis. Dry arroyas, Aqua Zarco, Sonora, May; and
Santa Cruz, Sept.; Thurber, & Capt.E. K. Smith. Specimens incomplete, nearly a foot high.
Leaves 3—4 inches long, scarcely more than a line wide ; floral leaves shorter and about 2 lines
wide, deep crimson. Distinguished from E. heterophylla by the narrow revolute leaves, etc.
Margin of involucre and styles also purplish. Capsule glabrous and seeds tuberculate, as in the
allied species.

EUPHORBIA RADIANS, Benth. Pl. Hartweg, p. 38. Plains between San Bernardino and Santa
Cruz, Sonora, April; Capt. E. K. Smith. Dry valleys near Buena Vista, Mexico; Dr. Gregg,
Dr. Wislizenus ; Mexico; Berlandier, (No. 116 and 1375.) Root tuberous : flowers in early spring,
before the leafy shoots put out. |
. EUPHORBIA ERIANTHA, Benth. Bot. Sulph. p. 51. Sonora; Wright, (No. 1841?)

$ IV. UMBELLATA,

了 upHoRBIA WRIGHTIr, Torr. & Gray, Bot. Pope's Rep. On the San Felipe and the San Pedro,
western Texas; Wright, (No. 1827.)

EUPHORBIA MULTICAULIS, (nov. spec.) : annua seu biennis, multicaulis, humilis, erecta, glabra ;
foliis lineari-oblanceolatis acutis mucronatis serrulatis basi angustata sessilibus ; umbellis tri-
fidis, ramis bifidis, bracteis lanceolatis, su] ovato-l latis acutis ; involucri glandulis
tranverseovatis; stylis basi liberis ad medium seu ultra bifidis ; capsule coccis dorso verrucosis ;
seminibus lenticularibus levibus fuscis. Sonora; Thurber. About a dozen stems form a taper-
ing root, 6 inches high, and with erect branches; leaves 4-6 lines long, 1 line wide. Nearly
allied to E. obtusata.

EUPHORBIA DICTYOSPERMA, Fisch. & Mey. Ind. Sem. Petrop. 1835. E. Arkansana, Engelm.,
& Gray, Pl. Lindh. 1, p. 26. Western Texas; Wright. Var. MEXICANA: annua seu plerumque
biennis, e basi erecto-ramoso ; foliis versus apicem crenato-serratis, lobis involucri subintegris ;
ovarii coccis dorso solum verrucosis. Valley of the Nagas, Balson de Mapimi, Dr. Gregg;
western Texas ; Wright, (No. 1824.) y 1181000004 : capsulis levibus seu vix hinc inde verru-
culosis. Texas; Drummond; II. 327. Near the Colorado, of Texas; Wright.

EUPHORBIA TETRAPORA (nov. spec.): annua, erecta, glaberrima ; foliis cuneatis obtusis seu ple-
rumque retusis emarginatis obcordatisve ; umbellis trifidis ; bracteis spathulatis seu superioribus
orbiculatis basi truncatis; cornubus involucri setaceis او‎ transversam æquantibus ;
capsula dorso levi; seminibus facie ventrali 4-punctatis, dorsali leviusculis. Georgia ; Boykin.
Louisiana; Hale. Texas; Lindheimer, Wright. Near E. Peplus as is the following species,
but distinguished by the capsule and the seeds.

卫 UPHORBIA PEPLIDION (nov. spec.): annua, erecta, glaberrima, e basi ramosissima ; foliis
confertis e basi angustata lineari-oblanceolatis obtusis; umbellis 3-fidis dichotomis, bracteis
lanceolatis acutis; cornubus involucri glandulam ipsam zquantibus linearibus obtusis; capsule
coccis obtusis non alatis seminibus facie ventrali 2-sulcatis, dorsali punctato-exsculptis. Sandy
soils, western Texas; Wright, (No. 1823.) A small plant, 3-4 inches high, much branched
from the base, of s habit of E. exigua. Seeds very similar to those of E. Peplus, 0.6 line
long.

EurmonpiA PEPLOIDES, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 112, non Gowan. E.
ngioruris, Scheele in Linnea, 22, p. 152, Western Texas; Wright, (No, 18225) Lindleiner,

192 UNITED STATES AND MEXICAN BOUNDARY.

(No. 529 and 698;) Drummond, (Coll. II, No. 331.) If E. peploides, Gowan, of Southern
Europe should prove to be a distinct species, Scheele's name must stand for ours.

EUPHORBIA BRACHYCERA (nov. spec.): annua (?), multicaulis, ramosa, erecta, glaberrima; foliis
in petiolum brevissimum angustatis lanceolatis seu lineari-lanceolatis acutis mucronatis ; umbella
3-fida seu raro 4—5-fida ; ramis pluries bifidis; bracteis inferioribus ovato-lanceolatis superioribus
rhombeo-orbiculatis mucronatis; glandulis brevissime obtuseque cornutis; seminibus majusculis
ovatis maculis irregularibus sæpe confluentibus leviter impressis. Western New Mexico; Wright,
(No. 1821.) Many stems a foot high from a stout but apparently annual or biennial root;
leaves 6-9 lines long, about 2 lines wide, patulous (not erect as in E. esulæformis) regularly
lanceolate ; upper part of the stem quite ramose; horns shorter than in any of our species, and
sometimes almost rudimentary. Seed 1 line in length, similar to those of E. esuleformis,
montana and Roemeriana.

EUPHORBIA MONTANA (nov. spec.): perennis, glaberrima; caulibus pluribus ascendentibus ; foliis
brevibus lanceolatis ovatis obovatis seu suborbiculatis acutis seu obtusis basi subinde subcordatis
subsessilibus coriaceis glaucis; bracteis omnibus orbiculato-triangularibus, rarius subcordatis,
superioribus subinde transverse ovato-triangularibus, omnibus cuspidatis ; glandulis semilunatis,
cornubus triangulatis brevibus; seminibus maculis plus minus impressis obscuris confluentibus
undique notatis.

a GRACILIOR : caule tenuiori ; foliis minoribus suborbiculatis obovatis seu lanceolatis.

B ROBUSTA: caule robustiore; foliis bracteisque majoribus crassioribus late ovatis seu ovato-
cordatis.

The var. a in New Mexico; Fendler, (No. 186 ;) Wright, (No. 661, 1825.) San Luis
Mountains, Sonora; Capt. E. K. Smith. Stems 4-8 inches high, leaves 2-3 lines long, in
young specimens imbricate and red.

Var. 8, on the upper Platte ; James, Nuttall, Frémont; is a much stouter plant. Leaves 5-6
lines long, seeds larger. Dr. Wislizenus collected intermediate specimens near Albuquerque.

EUPHORBIA CRENULATA (nov. spec.): annua, erecta, glaberrima ; foliis obovatis acutis in basin
attenuatis minute crenulato-serrulatis mucronatis; umbella 5-fida, bracteis inferioribus late
ovatis acutis, superioribus transversis, omnibus tenuiter serrulatis mucronatis; involucri
glandulis longe tenuiterque cornutis ; seminibus ovato-subglobosis cinereo-fuscis, maculis
obscurioribus irregulariter confluentibus parum impressis. California; Hartweg, (1950.) Near
Monterey ; Dr. Parry. About 1-2 feet high, simple or branching above ; leaves about 9 lines
long, 5 lines broad, involucells broader and shorter; seed nearly a line long, unusually dark
for this section. One of the very few, peploid Euphorbia with crenate leaves.

-EUPHORBIA ESULEFORMIS, S. Schauer in Linnea, 20, p. 129. Near the Copper Mines, New
Mexico; Wright, (No. 1820;) Bigelow. On the Nueces, western Texas; Wright. San Luis
Mountains, Sonora ; Capt. E. K. Smith. This species seems to be scarcely distinguishable from
the Mexican E. campestris ; Schlechtendal. The original specimen of the latter, however, has
longer and more slender horns; the seeds are wanting. The original specimen of E. esuleeformis
: سس‎ similar but smaller seeds than our plant; the horns are also very short and incurved, the
gland itself is truncate and notched. Euphorbia brachycera and E. montana come very near w

BOTANY。 193

San Francisco Spring, Sonora; Parry. The seeds were not ripe. This is, perhaps, a distinct
species, but it must remain as a variety until more complete specimens are obtained.

EUPHORBIA LATHYRIS, Linn. is somewhat naturalized around Monterey, California. It was
doubtless introduced by the Spaniards. We have it also from Saltillo, Mexico, where it was
collected by Gregg.

& V. SPARSIFLORE.

EUPHORBIA MISERA, Benth. Bot. Sulph. p. 51. Near the sea, San Diego, California; Parry.
A straggling bush, about 3 feet high, abounding in a milky juice. Nuttall found it at Santa
Barbara.

EUPHORBIA ANTISYPHILITICA, Zucc. Acad. Mon. 1, p. 292. Rocky and gravelly hills along the
Rio Grande, from the Presidio del Norte to Laredo; Bigelow, Schott. Remarkable for its long
terete nearly leafless branches, which resemble an Equisetum or an Ephedra.

PHYLLANTHUS CAROLINIANUS, Walt. Fl. Car. p. 228; Ell. Sp. 2, p. 661. P. obovatus, Willd.
Sp. 4, p. 574. Maschalanthus obovatus, Nutt. Trans. Amer. Phil. Soc., (n. ser.) .م‎ 175,
Southern Texas, common.

PHYLLANTHUS POLYGONOIDES, Nutt. l. c. P. Roemerianus, Scheele in Linnea, 25, p. 583. Dry,
sandy, and rocky places along the Rio Grande, from New Mexico to the Gulf, and westward in
the Mexican States. (No. 1819, Wright ; No. 337, Coll. II, Drummond.) This is certainly an
annual, but late in the season, when the lower part of the stem and the root have become indu-
rated and ligneous, it appears as if suffruticose.

PHYLLANTHUS ERICOIDES (n. sp.): fruticulosus, ramosissimus ; foliis oblongo-lanceolatis imbri-
cato-confertis subsessilibus glabris coriaceis mucronatis; floribus dioicis axillaribus solitariis
brevi-pedicellatis ; calycibus 5-(raro 6-) partitis. High mountains near the Rio Grande, in. .:
Chihuahua, October; Parry. Plant about a span high. Leaves about 2 lines long and scarcely ۳۳۹
more than half a line wide, acute, nearly sessile, with a pair of subulate persistent stipules at
the base. Male flowers about a line long. Calyx deeply 5-parted; the segments oblong and
somewhat obtuse. Petals none. Stamens 3 ; the filaments united into a column, at the base of
which are 5 roundish glands. Female flowers rather larger than the male ; the segments oblong,
acute. Petals none. Ovary with 5 glands at the base; cells uniovulate. Styles 3, two-cleft ;
stigmas sub-globose. A well characterized species, remarkable for its very small crowded leaves.

LEPIDANTHUS PHYLLANTHOIDES, Nutt. l.c. Ravines on the San Pedro river, western Texas;
Bigelow, Schott. (No. 636, Wright.) Mr. Nuttall’s description of this very distinct genus can
hardly be improved.

CROTON BERLANDIERI (n. sp.): suffruticosum ; ramulis inferne nudis; foliis ovatis cordatis.
acuminatis membranaceis utrinque stellato-pubescentibus integerrimis vel obsolete denticulatis
basi eglandulosis; floribus monoicis, masculis breviter racemosis 5-petalis 20-30-andris, feemineis — —
petaliferis ; stylis bis bifidis ; fructibus tomentosis demum glabratis. Neuvo Leon, December ;
T'hurber. (Nos. 108 and 2125, Berlandier.) Plant apparently about a foot high. Leaves 1-2
inches long, 1-14 inch wide; the petiole more than half the length of the lamina. Racemes
terminating the branches, pedunculate. Male flowers 10-15, crowded on pedicels about a line
long. Petals oblong. Stamens with 5 roundish glands at the base. Female flowers 1-2 at
the base of the raceme. Calyx woolly, 5-parted ; the segments oblong. Petals 5, very narrow,
two-thirds the length of the calyx. Ovary woolly, with 5 glands at the base. Styles deeply

25 k :

194 UNITED STATES AND MEXICAN BOUNDARY.

twice bifid. We have not been able to find any described species to which we can refer this
Croton. It is a genuine species of the genus as characterized by Klotsch.

CROTON SONORA (n. sp.) : fruticosum ; foliis ovatis acutiusculis basi obtusis integris supra gla-
briusculis infra sparsim stellato-pubescentibus ; floribus monoicis, masculis paucis sub-13-andris,
petalis 5 calyce eequalibus ; fcemineis solitariis vel binis, petalis 5 angustis calyce brevioribus ;
disco 5-lobo; stylis apice bifidis. Sierra de Nayos, July ; Schott. A small shrub, much branched;
the old branches smooth, younger ones furfuraceous. Leaves about an inch long, green both
sides but rather paler underneath. Petals of the male flowers hairy at the base. Stamens with
5 spherical orange glands surrounding the receptacle. Female flowers oneor two at the base of
the short and few-flowered male raceme. Segments of the calyx rather acute. Petal linear-
oblong, two-thirds of the length of the calyx. Disk surrounding the base of the ovary rather
fleshy, 5-lobed. Styles rather stout, somewhat dilated and moderately bifid. Young fruit sub-
globose. ۱

CROTON SUAVEOLENS (n. sp.): fruticosum ; 101118 ovatis obtusis basi rotundatis integerrimis
eglandulosis utrinque densissime lanato-tomentosis; floribus monoicis, foemineis solitariis vel
binis, subsessilibus ; stylis profunde bipartitis ; stamineis brevi-racemosis 12-14-andris. On the
Rio Grande, No. 1804, Wright. A shrub with stout terete stellately pubescent branches. Leaves
growing mostly towards the extremity of the branches, rather thick, paler underneath. Stami-
nate flowers 6-10 in a short raceme, sessile, subtended by minute piunatifid bracts. Petals 5,
oblong. Stamens commonly 14. Fertile flowers usually in pairs at the base of the staminate
flowers. Calyx deeply 5-parted ; the segments lanceolate and acute. Disk somewhat 5-lobed,

1 with 5 linear or club-shaped processes (petals?) alternating with the calyx-segments. This
species seems to be near C. pellitus, H. B. ۰
C. SUAVEOLENS, Var. OBLONGIFOLIUM : foliis oblongis supra discrete stellato-pubescentibus, subtus
تا‎ ee dense tomentosis ; racemo masculo subelongato multifloro, floribus subsessilibus. Rocky ravines
一 along the Rio Grande, from the Pecos and San Pedro to the Gulf. No. 1802, Wright, from the
Painted Caves, is probably the same, but the specimens are more herbaceous, and they may be
only luxuriant shoots. Leaves 1-2 inches long and 4-4 inch wide, the upper surface much
darker than the lower, rather acute and somewhat mucronate. Flowers monecious; male
( raceme an inch or more in length. Fertile flowers 1-2. Styles 2-parted nearly to the base.
T حسم‎ Í ng Croton LINDHEIMERIANUM, Scheele in Linnea, 25, p. 580. Rocky hills, western Texas; New
۱ Mexico, Chihuahua and Nuevo Leon ; Buena Vista ; Gregg. (Nos. 641 and و1805‎ Wright.) ‘Plant
upright, 1-2 feet high ; the branches herbaceous Sis a woody base. Leaves whitish tomentose
with stellate hairs which are somewhat confluent in the centre, Flower smostly dicecious, rarely
monecious, in short racemes, which are subterminal and axillary. Staminate flowers with lan-
ceolate ciliate petals. Stamens about 12; a 5-lobed disk at the base of the hairy filaments.
Fertile flowers on pedicels 2-3 lines ios ; calyx deeply 5-parted. Petals sometimes wanting
— but usually present and very unequal, 1-2 of them linear and nearly as long as the calyx, the
others much shorter or wanting. Disk conspicuous, 5-lobed ; the lobes opposite the segments of
the calyx. Styles parted nearly to the base; the divisions filiform. This species is known by
` the name of Mexican Tea.
| CaoroN FRUTICULOSUM (Engelm. MSS.): caule basi fruticoso ; foliis ovatis vel lanceolato-ovatis ©
acuminatis acutisve subcordatis remote minutissime denticulatis eglandulosis supra viridis pube-
rulis subtus dense stellato-pubescentibus ; floribus monoicis pedicellatis, masculis racemosis 10-5
andris 5-petalis, fæmineis apetalis; stylis profunde bipartitis, laciniis elongatis filiformibus.

BOTANY. 195‏ "^ سم

Mountain sides and rocky ravines western Texas; Chihuahua and Sonora. (Nos 639 and 1803,
Wright ; the latter a dicecious form. ` Nos. 176, 177, and 297 Coll. 1846; Nos. 134 and 297 Coll.
1847, Lindheimer. No. 3212, Berlandier, in part; the specimens with hairy fruit being C.
trichocarpa, Torr. Leaves 1 to 24 inches long, and haif an inch to an inch wide, pubescence of
the under surface often of a yellowish tinge. Inflorescence terminal and axillary in the upper
leaves. Staminate flowers 10-20 or more. Petals 5-oblong. Stamens exserted ; filaments
smooth. Disk 5-lobed, glandular. Fertile flowers usually 2, sessile, apetalous ; disk indistinct.
Capsule globose-trigastric, covered with a short canescent stellate pubescence.
* * HENDECANDRA.

CROTON muricatuM, Nuit. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 173. Hendecandra Texensis,

Klotsch in Erich. Arch. 1, p. 252. H. multiflora, Torr. in Frém. 1st Hep. p. 96. New Mexico, Pern
Central and Western Texas, Chihuahua and Sonora. (No. 1799, Wright; No. 1548, Berlandier.)

In Nuttall’s plant from Arkansas, and in specimens from the Upper Platte, the leaves are

densely clothed with stellate hairs on both surfaces, but usually the hairs are rather scattered on

the upper side. The fruit is roughened (often only obscurely) with small protuberances. Styles

2-parted and the divisions twice cleft, so that there are 24 stigmas in all.

CROTON MARITIMUM, Walt. Fl. Carol. p. 383; Ell. Sp. 2, p. 646. Hendecandra maritima, e
Klotsch, l. c. excel. syn. Crotonis monanthogynis. Galveston, Texas; Schott. (No. 3213 ML
Berlandier.) Flowers apetalous. Stamens 11-16 ; filaments hairy. Disk irregularly lobed: ١ ;
of the fertile flowers annular and obscurely 5-lobed. Styles thrice cleft. ۱

CROTON ARGYRANTHEMUM, Michx. Fl. 2, p. 215. Western Texas, on the Lower Rio Grande,
rare. (No. 1554 and 2552, Berlandier.) Apparently suffruticose. Under surface of the leaves
somewhat silvery with stellate scales. Flowers moncecious in short terminal racemes. The
staminate on short pedicels. Petals 5, oblong. Stamens 9-11. Disk with 5 glandular lobes.

Fertile flowers 4-8 in each raceme, apetalous. Styles twice cleft at the summit; more deeply
divided in Berlandier’s No. 2552 than in the Texan plant.

Croton (HENDECANDRA) PROCUMBENS, Eschsch. in Mem. Acad. Petersb. 10 (sub Hendecandra); 4 م‎
Hook. & Arn. Bot. Deech., p. 389, t. 91. O. gracile, H. B. K. Nov. Gen. & Sp. 2, p. 69. 2 72
Astrogyne crotonoides, Benth. Pl. Hartw., p. 14. Sandy places in various parts of California ; f Fue?
Parry, Rich, Le Conte, Frémont. Banks of the Colorado ; Schott. On the Gila River ; Emory. 0 In Khar
Along the Rio Grande, from Frontera downward, in Western Texas, Chihuahua and Nuevo e
Leon; Wright, Thurber, Bigelow. (Nos. 1800 and 1801, Wright; No. 3211 Berlandier, a broader —— د‎
leaved form with more silvery scales.) Some of the forms much resemble C. argyranthemum.
That species differs, however, in being only slightly woody at the base ; the racemes are short
and the flowers are 5-petalled, whereas C. procumbens is decidedly shrubby, the racemes are
elongated and the flowers apetalous. In the latter, also, the styles are deeply twice cleft. A
remarkably slender variety of the plant, in which the racemes (or rather the axes, from which
the lower flowers have fallen) are from 2 to 6 inches long, was found by Dr. Bigelow in a dry
arroyo opposite Presidio del Norte.

* * * PPrLoNoPHYTUM, Klotsch. Heptalon, Raf.

CROTON caPrrATUM, Micha. Fl. 2, p. 214, Gray, Man. ed. 2, p. 391. Pilonophytum capitatum,
Klotsch.,1.c. On the Rio San Antonio, Texas; Schott. Rio Pecos; Thurber, (No. 640, Wright,
Nos. 861 and 2281, Berlandier. No. 862 seems to be the same plant, with the flowers in an
abnormal state.)

196 UNITED STATES AND MEXICAN BOUNDARY.

* * * * GetsELERIA, ۰

CROTON GLANDULOSUM, Linn.; Micha. Fl. 2, p. 214; EU, Sk. 2, p. 648. Geiseleria glan-
dulosa, Alofsch. On the Rio Grande, near Eagle Pass; Schott, Bigelow, (No. 638 Wright.) In
the staminate flowers the calyx is 4—5-parted, the petals 4—6, and the stamens vary from 4 to 8.
The calyx of the fertile flowers is unequally 4—5-parted. A common species in the southern
and southwestern States, extending into Mexico and South America.

In the herbarium of Berlandier are the following species of Croton which do not occur in any
of the Mexican Boundary collections.

CROTON TRICHOCARPUM (n. sp.): fruticosum ; foliis lanceolato-ovatis acuminatis vel acutis
denticulatis supra glabriusculis subtus canescente stellato-pubescentibus; floribus dioicis,
masculis longe spicatis sub-16-andris, petalis calyce equalibus ; foemineis brevispicatis, petalis
5 angustis calyce brevioribus ; stylis profunde bipartitis ; fructibus hirsutissimis. Matamoras
and San Fernando, Cohahuila; Berlandier, Nos. 1503, 1540, 2244, 3003, 3040, and 3212 (in
part.) A shrub apparently about 2 feet high. Leaves 14 to 23 inches long and half an inch
to more than an inch wide; (in Nos. 1503 and 3003 smaller and not acuminate,) obtuse, or

„somewhat acute at the base. Male spikes 2 to 3 inches long, the flowers on very. short pedicels.
Petals spatulate-lanceolate, ciliate with long hairs on the margin. Fertile spikes much shorter
-—' ` than the male; the flowers sessile. Sepals acute. Petals lanceolate linear. Disk a narrow
ring. Capsule hispid with long hairs, which fall off more or less when the fruit is ripe.
CROTON PENICILLATUM, Vent.; H. B. K. Nov. Gen. & Sp. 2, p. 84. Tampico; Berlandier, Nos.
752 and 2172. ** Plant 3-4 feet high.”
CROTON SYRINGÆFOLIUM, H. B. K. l. c., p. 6۲. Nos. 745 and 2165, Berlandier. No. 144 seems
to be the same, with smoother leaves.
4 ( GysAMBLosIS] MONANTHOGYNA, Torr. in Marcy's Rep., p. 295. Croton monanthogynum, AMicha.
Fl. 2, p.215. C. ellipticum, Nutt. Gen. 2, p. 225, (excl. syn.) Engelmannia Nuttalliana,
Klotsch,l. c. Argothamnia herbacea, Spreng. syst. 3, p. 848. Rocky places, Escondido Creek,
Western Texas; Bigelow. (Nos. 441, 946, 1762, 2316 and 2532, Berlandier.) Nos. 649 and
9059, Berlandier, are very poor specimens of what may be a variety of this plant ; but they differ
in being more densely pubescent; the male flowers with 10-12 stamens, and at least some of
the female flowers with three styles.
- — EmEMOCARPUS SETIGERUS, Benth. Bot. Sulph., p. 53, t. 26. On the sea beach near San Diego,
California; Parry, Schott. Near San Felipe; Emory. This plant begins to flower and even
bear fruit when it has scarcely formed a stem and all its leaves are in roseate clusters, spreading
flat on the ground.

APHORA HUMILIS, Engelm. & Gray, Pl. Lindh. 1, p. 54. Gravelly hills along the Rio Grande
from New Mexico downward to the Gulf; March to May ; Bigelow, Schott. San Antonio,
Texas; T'hurber. (Nos. 643 and 1797, Wright.) Petals of the fertile flowers longer than the
oblong glands. This and the next species differ from A. mercurialina and A. pilosissima in the
fertile flowers bearing true petals besides the glands of the disk; the former alternate with the
sepals; the latter opposite to them. The hairs, in all the species are simple, and those of the
leaves and branches are fixed by the middle.

APHORA LEVIS (Gray MSS.): glaberrima ; caulibus e basi lignoso ramosissimis ; foliis oblongis
obtusis basi attenuatis; spicis axillaribus paucifloris folio multum brevioribus ; petalis in flore
masculo lanceolatis calycem paullo superantibus ; in flore feemineo lanceolatis glandulis linearibus
emarginatis sub-duplo longioribus. Western Texas; Wright, No. 1798. Plant about a span

H

0

BOTANY， 197

high. Leaves an inch long, tapering at the base into a short petiole. Spikes on short peduncles
4 to 5-flowered ; commonly only the lowest flower pistillate. Very near the last species, but
differing in being entirely smooth, and in long narrow emarginate glands of the disk.

APHORA LANCEOLATA, Engelm. & Gray, l. c. Serophytum lanceolatum, Benth. l. c. Sierra de
la Nariz, Sonora; Schott. On the Gila; Thurber. Near A. humilis.

APHORA SERRATA (n. sp.): annua, humilis, pilosa; caule e basi ramoso; foliis oblongis basi in
petiolum brevem attenuatis serratis ; racemis androgynis paucifloris; floris masculi petalis calyce
longioribus, foeminei petalis glandulis multo longioribus. Sandy plains near Fort Yuma,
California; Schott. On the Rio Gila; Parry. Stems moderately branching, 3-6 inches long.
Leaves 3—1 inch long, ovate, or elliptical-oblong, obtuse or acute, denticulate-serrate. Clusters
or short racemes axillary, 4—5-flowered ; one or two of the flowers fertile, the others staminate,
Petals of the staminate flowers rhombic-lanceolate, acuminate. Stamens 10, in 2 series, the
filaments united into a slender column, at the base of which are 5 oblong erect glands. Fertile
flowers 5-petalled, with 5 linear short glands alternating with the petals. Ovary trigastric,
very hispid; styles deeply 2-parted; the divisions linear. Seed the size of a large pin-head,
globose-obovate, gray, corrugated.

We have incomplete specimens (with staminate flowers only) of an allied species, or a variety
of this plant, collected by Mr. Schott, on the Sierra del Tule, Sonora. It is much larger than
A. serrata; the branches are quite smooth, and the oblong remotely denticulate leaves (1-2
inches long) are only sparsely hirsute. The racemes, or spikes, are axillary, 8-10-flowered, on
peduncles about as long as the p: tioles. Segments of the calyx narrowly lanceolate. Petals 5,
rhombic-lanceolate, purple. Stamens 10, in two series, one above the other; the filaments
united into a column, with 5 oblong glands at the base. Another allied species, or probably
variety, was found by Mr. Blodgett, in dry places, at Key West. It seems to be a prostrate
annual, slightly hirsute, with ovate-oblong acute sub-sessile leaves, which are either denticulate-
serrate, or nearly entire. Clusters 4—5-flowered. Petals of the staminate flowers oblong, a
little exceeding the calyx. Fertile flowers 5-petalled, the petals ovate, half the length of the
calyx. Glands very short and emarginate. Seed sub-globose, reticulate-corrugate.

APHORA MERCURIALANA, Nutt. in Amer. Phil. Trans. (n. ser.) 5, p. 174. Serophytum Drum-
mondi, Benth. Bot. Sulph. p 53. Western Texas; Wright. (No. 2166, Berlandier.)—Var.
PUMILA: nana, glabrescens, e basi ramosa ; floris masculi petalis calyce paulo longioribus. Springs |
near Eagle Pass, on the Rio Grande; Bigelow. The variety is woody at the base, as in the
ordinary form. The stem is only 4-6 inches long. Leaves (in dried specimens) more or less
tinged or clouded with purple.

APHORA PILOSISSIMA. Serophytum pilosissimum, Benth. l. c. Southern Texas. (Berlandier,
No. 2566.) This is the same as No. 322 of Drummond's third collection of Texan plants.
Engelmann and Gray incorrectly refer this species to A. mercurialina, ۰

MozINNA SPATHULATA, Orteg. Dec. 8, p. 105, t. 13. Var. sESSILIFLORA, Hook, lec. 4, 357.
Gravelly hills and mountain sides, western Texas, Chihuahua, Coahuila, and Nuevo Leon;
. flowering throughout most of the season. Near Matamoras; Berlandier, No. 3210. (No. 1812,
Wright.) An erect shrubby plant, with nearly simple rather stout branches. Leaves 1-2
inches long, varying from linear to obovate-spatulate, and from obtuse or emarginate to acute.
Flowers white, in small facicles, growing, with the leaves, from short wart-like spurs. Fruit
ovate, acute, often (by abortion) 1-seeded, the thin papery endocarp separating from the exocarp.
Seed the size of a large pea, glabrous. All the species of this genus are called by the Mexicans

198 UNITED STATES AND MEXICAN BOUNDARY.

Sangre de Drago. Dr. Gregg, who found the present species in Chihuahua and other parts of
Mexico, says it is astringent, and is employed by the natives as a remedy for sore gums and
loose teeth. Mr. Schott found on the Sierra del Tule and Tinaja Alta, in Sonora, incomplete
specimens of a Mozinna, which is probably a variety or state of M. spathulata. The leaves are
about one-third of an inch long, obovate-cuneate, obtuse or emarginate, and the inflorescence is
more expanded, so as to be somewhat paniculate. The fertile flowers were not collected.

MozINNA CANESCENS, Benth. Bot. Sulph. p. 52, t. 25. Near Quitobaquata, Sonora, August;
Schott. Our specimens are with staminate flowers only. I fear this is not sufficiently distinct
from M. cordata, Ort.

MozINNA CARDIOPHYLLA (n. sp.): foliis late cordatis acuminatis petiolatis crenato-dentatis ;
floribus masculis paniculatis. Near Tucson and Sierra Verde, Sonora, June; Schott. Plant gla-
brous, apparently 1-2 feet high. Leaves about an inch long, broadly cordate, rather coarsely
crenate-toothed. Flowers nearly as in the two other species ; only the staminate known.

CyiposcoLus STIMULOSUS, Engelm. & Gray, Pl. Lindh. 1, p. 26. ©. Michauxii, Pohl. fide
Klotsch. Jatropha stimulosa, Micha, Fl. 2, p. 216; Ell. Sk. 2, p. 649. Sandy places along
the lower Rio Grande and westward to Sonora. (Nos. 1071 and 2501, Berlandier.) Variable
in the size and outline of the leaves.

CNIDOSCOLUS ANGUSTIDENS (n. sp.): herbaceus, pilis urentibus hispidus; foliis ad mediam 3—5-
lobatis, lobis grosse inciso-dentatis, dentibus angustis elongatis acutisimis macronato-setaceis ;
floribus cymosis, centrali foeminei; calycis laciniis tubo subeequantibus. Santa Cruz, &c.,
Sonora; Thurber, Schott. (No. 1809, Wright.) Plant one to two feet high, more or less hispid
with stinging hairs. Leaves remarkable for the long narrow salient teeth, which terminate in
a rigid bristle; the lamina sometimes nearly smooth, but the petiole always hispid. Flowers
as large as in C. stimulosus, but the tube of the petaloid calyx much shorter. Stamens 10;
the filaments monadelphous about half their length, in two series of five each ; the interior
about one-third longer than exterior. At the base of the column are five small sessile glands.

JATROPHA MULTIFIDA, Linn. Sp. p. 1429 ; H. B. K. Nov. Gen. & Sp. 2, p. 105. J. macrorhiza,
Benth. Pl. Hartw. p. 8? Plains along the Rio Grande from the Presidio del Norte downward
to Neuvo Leon, and westward to Sonora, May-July. (No. 1808, Wright.) Plant about a foot
high, herbaceous from a thick root or rhizoma. Leaves 3—5-lobed , the lobes oblong-lanceolate,
laciniate and toothed, the teeth very acute and pointed with a bristle. Stipules deeply laciniate
with subulate segments. Flowers in terminal cymes, the alar one of the primary usually fertile,
the others staminate. Bracts ciliate. STAMINATE FL. Calyx deeply 5-parted ; the segments
laciniate-toothed. Corolla white, about twice as long as the calyx ; segments obovate-spatulate.
Stamens 8, monadelphous below, 3 of them longer than the other 5; the column with 5 erect
cuneate emarginate glands at the base. Ferme FL Calyx and corolla nearly as in the
staminate, except that the segments of the former are more laciniate. Style 3-parted nearly to
the base; the divisions 2-cleft at the summit. Capsule about half an inch in diameter, nearly
smooth, (granular when dry.) Seeds oblong, light brown with purple spots. Mr. Thurber
informs us that the Mexicans know the seeds of this species to be purgative.

J AIROPHA BERLANDIERI (n. sp): glabra; foliis radicalibus longissime petiolatis glaucis pal-
matim 5—7-partitis, segmentis oblongis vel obovatis laciniato-dentatis vel pinnatifido-incisis ;
calycis segmentis ovatis integris corolla multo brevioribus ; floribus masculis 8-andris. On the
Lower Rio Grande; Wright, No. 651. Plains near Eagle Pass and Piedra Pinta; Bigelow,
Schott. Monterey, Neuvo Leon; Dr. Edwards. (No. 1810, Wright. No. 2060 and 3124,

BOTANY。 199

Berlandier.) ۳ em about a foot high, from a large oblong-conical starchy root. Leaves divided
nearly to the base, the laciniz often linear and very narrow ; petioles 2-6 inches long. Flowers
in terminal cymes, the alar one only fertile. Corolla purple; the segments obovate-oblong.
Stamens monadelphous only near the base, 5 of them a little shorter than the other three ;
anthers linear, elongated: 5 glands at the base of the column. Styles short, united below ;
stigmas somewhat thickened, 2-lobed.

JANIPHA LOEFLINGII, H. B. K. Nov. Gen. & Sp. 1, p. 107. Jatropha Janipha, Linn. Ringgold
Barracks, lower Rio Grande, June; Schott. Stems slender, glabrous. Leaves deeply 3—5-lobed,
the lowest lobes smallest and entire, the others (especially the middle one) more or less pan-
duriform. Staminate flowers 8-15 in a terminal raceme ; the pedicels scarcely one line long; calyx
tubular and at length salverform ; the segments linear-oblong. Stamens 8; filaments free to the
base; 5 of them shorter than the other; 5 small glands at the base of the filaments. Fertile
flowers 2, at the base of the staminate raceme, their pedicels at length 6-8 lines long and reflexed.
Calyx 5-parted to the base. Ovary globose, smooth, sometimes with 1 or 2 filaments bearing
l-celled anthers. Styles 3 short; stigmas dilated, cristate-lobed. Ripe fruit not seen. This
is intermediate between J. Loeflingii and J. Yuquilla, and all are probably forms of one species.

JANIPHA Maurnor, H. B. K. l.c.: var. ANGUSTILOBA : foliis 5-partitis, laciniis anguste lanceolato-
linearibus integerrimis vel undulatis acutis. Santa Cruz and Tubac, Sonora, June—July ;
Schott. Near Monterey, Neuvo Leon; Gregg. No. 1811, Wright. Plant smooth, 1-2 feet from
a somewhat shrubby base, branching above. Leaves mostly 5—parted ; the segments 2-5 inches
long and 13-5 lines wide, usually somewhat undulate and sometimes approaching to panduri-
form. Stipules minute and subulate. 了 acemes 15-20-flowered ; the 2 lowest flowers fertile,
the others staminate. Calyx of the staminate flowers greenish-white, broadly campanulate,
5-lobed about half way down; the lobes oblong. Stamens 10; filaments distinct, 5 of them
longer than the others; 5 glands at the base of the column. Calyx of the fertile flower 5-parted
to the base. Pistil nearly as in J. Loeflingii. Fruit 3-lobed, the carpels l-seeded. Seeds
44 lines long, gray, mottled with dark purple. This differs from any form of J. Manihot in our
herbarium, but it seems hardly a distinct species.

ACALYPHA CAROLINIANA, Walt. Fl. Car. p. 238; Ell. Sk. 2, p. 645. Ravines near Presidio del
Norte, and near the Copper Mines, August—September ; Bigelow. Annual. Staminate spikes
axillary, 3-4 lines long ; fertile ones terminal 2-3 inches long. Involucre cut into deep narrow
segments. Capsule echinate with short soft spines. Very near A. polystachya of the West Indies.

AcALYPHA VIRGINICA, L. Sp. p. 1423 ; Torr. Fl. New York, 2, p. 173. Near the Copper Mines,
New Mexico; Bigelow. No. 1817 and 1818, Wright. Differs somewhat from the eastern plant
in the longer spikes and the more foliaceous terminal bracts.

ACALYPHA GRACILENS, Gray, Man. Bot. ed. 2, p. 390. Western Texas, Wright. More common
southward and westward than the last.

ACALYPHA PHLEOIDES (Cav.?): suffruticosa ; foliis ovatis subsessilibus serratis; spicis terminali-
bus solitariis androgyonis superne masculis inferne foemineis; involucris 5-dentatis. A. phleoides,
** Cav. Ic. 6, p. 48,0. 569, f. 2; ex Pers. Syn. 2, p. 581. Hill sides, western Texas, Chihuahua, Co-
hahuila, Sonora, &c., April—July. No. 1815 and 1816, Wright. Stem apparently prostrate
with erect hairy branches about a foot high. Leaves an inch long, rather acute at both ends, a
little hairy above and underneath. Stipules subulate, very small. Spikes terminating the
branches, 1-2 inches long, the summit usually staminate and much more slender than the fertile

200 UNITED STATES AND MEXICAN BOUNDARY.

portion. Bracts of the fertile flowers coarsely and acutely 5-toothed, sparingly ciliate with
rigid hairs. Capsule hispid at the summit. According to Dr. Gregg this plant is used by the
Mexicans as a wash for sore gums and loose teeth, and as an application to ulcers. It is doubt-
ful whether this is A. phleoides, as that species is said to be an annual. Our plant seems to be
nearly allied to A. prunifolia, but that also is described as an annual.

ACALYPHA HEDERACEA (n. sp.): e caudice lignoso multicaulis, molliter incano-pubescens seu
villosa ; foliis orbiculari-reniformibus longe petiolatis crenato-dentatis; spicis dioicis (rarissime
monoicis) terminalibus pedunculatis, stamineis gracilibus foemineis brevibus crassis, bracteis
obtuse 9—10-dentatis. Damp places, valley ofthe Pecos ; Bigelow. Neuvo Leone and Chihuahua,
Gregg, Edwards. May—September. (No. 648, 1813 and 1814, Wright. No 473, Lindheimer.)
Plant slender, prostrate, branches 6-15 inches long. Leaves 6-10 lines in diameter, mostly
broader than long, truncate or cordate at the base. Staminate spikes 6-10 inches long; the
peduncle often 1-2 inches long. Fertile spikes half an inch long. Bracts cucullate. Fruit
hispid.—In one of Mr. Wright’s specimens (No. 1813) there are sessile axillary few-flowered
fertile spikes, and others that are androgynous, consisting of a short pedunculate staminate
spike with a single fertile flower at the base.

ACALYPHA RADIANS (n. sp.): e basi suffruticosa multicaulis, pilis longis pateutissimis villosa ;
foliis longe petiolatis orbiculari-reniformibus inciso 7—13-fidis, lobis sublinearibus ; spicis dioicis
terminalibus pedunculatis, stamineis oblongo-linearibus, foemineis crassis ; bracteis obtuse 9-10-
dentatis. Western Texas, especially along the lower Rio Grande, and in the adjoining Mexican
States. (No. 251, Coll. IL,) Texas, Drummond. No. 649, Wright. No. 636, 1070, 2046, and 2500,
Berlandier ) This is certainly very near the last, but I have not seen intermediate forms. It
it is easily distinguished by its hairiness, and the radiately lobed leaves.

Tracts URTICEEFOLIA, Micha. Fl. 2, p. 116; Ell. Sk. 2, p. 564. T. betoniceefolia, Nutt. l. c. p.
113. T. brevispica, Engelm. & Gray, Pl. Lindh. 1, p. 54; Scheele in Linncea, 25, p. ۰
Rocky ravines and hill sides, New Mexico, and western Texas, along the Rio Grande to the
Gulf. (No. 307, Coll. II. Texas, Lindh. No. 260, Coll. III. Texas, Drummond. No. 1793,
Wright.) No. 647 of Wright's earlier collection in the same plant with the flowers and fruit in
an abnormal state. I can find no sufficient characters for distinguishing this plant from T.
urticefolia, Ma. The stems are at first upright, but at length prostrate or sometimes even a
little twining. "The length of the spikes is very variable. In specimens from Arkansas the
fertile flowers have the calyx 6-petalled, and the staminate 4—5-sepalled, 4-5-androus. The
stems are somewhat woody at the base.

TRAGIA URTICHFOLIA, var.? LACINIATA : foliis pedatim 3-partitis, laciniis pinnatifidis, intermedio
longiore. Sonora, Mexico, Thurber. No. 1795, Wright. Stem apparently prostrate, 12-15
inches long, paniculately branched, hirsute. Leaves 1-1} inch long, the lower ones on short
petioles, upper nearly sessile, pedately divided to the base, pinnatifidly cut into acute segments or
teeth ; the lateral lobes sometimes unequally 2-cleft. Racemes terminating the short branches,
few-flowered, the lowest flower fertile. Calyx and fruit as in the ordinary form, Fruit. A
remarkable variety, approaching (by the description) T. cannabina, Mr. Schott collected in the
northwestern part of Sonora specimens of a Tragia that seems intermediate between T. urtice-
folia and this plant. The leaves are oblong-ovate and coarsely toothed, and part of them are
2-lobed at the base or somewhat halberd-form, showing the tendency to become pedate.

TRAGIA RAMOSA, Torr. in Ann. Lyc. New York, 2, p. 245. T. angustifolia, Nutt. l c. T.

BOTANY. 201

scutellariefolia, Scheele, l. c. Gravelly hills of the Limpio; Bigelow. Ravines of the Organ
mountains, April; Parry. On the upper Rio Grande, New Mexico; Fendler, No. 776. Perhaps
only a var. of the last. It differs chiefly in being much smaller and erect, wiih the leaves
scarcely at all cordate. Var.? LEPTOPHYLLA : foliis linearibus integris vel remote denticulatis.—
Near Howard's Springs; Bigelow; No. 1796, Wright. Plant woody at the base, about a span
high, and branched from the base. Stem and branches sparingly hirsute. Leaves 1-14 inch
long and 1-2 lines wide. Spikes few-flowered ; the lowest flowers fertile. Flowers as in T.
ramosa, etc.

TRAGIA URENS, Linn. Sp. p. 1391; Ell. Sk. 2, p. 564. Hillson the lower Rio Grande; Schott.

TYRIA MYRICHFOLIA, Scheele in Linnea, 25, p. 581. Rocky hill sides near the Pecos and Live
Oak creek, also on the Flounce mountains, etc.; western Texas and Chihuahua; Bigelow, Schott.
San Felipe, California; Parry. No. 1806 and 1807, Wright. An irregularly branched
homely shrub, 3-10 feet high, of a grayish green color, clothed with a minute stellate pubes-
cence. Sterile flowers on short pedicels which are aggregated upon spurs or short branches and
articulated at the base. Sepals mostly 3, sometimes 4. Stamens 3-20, the filaments distinct,
with minute alternate capitate pedicellate glands at their base. No abortive ovary. Fertile
flowers sessile. Fruit tricoccous or by abortion dicoccous.

SAPIUM? ANNUUM (n. sp.) : annuum, humile ; foliis rhombeo-oblongis acuminatis basi attenuatis
prominenter trinervibus spinuloso-dentatis rigidulis eglandulosis. Stillingia spinulosa, Torr.
in Emory's Rep. p. 151. In the sandy desert west of the Colorado, California; Major Emory.
Near Fort Yuma; Schott. Var. pgNTATUM: foliis oblongis vel obovato-oblongis obtusis vel acu-
tiusculis membranaceis acute dentatis, dentibus inermibus, venis inconspicuis. Wet ravines, Eagle
Pass, Lower Rio Grande; Bigelow, Schott. Valley of the Almo; Parry. Near Monterey,
Neuvo Leon; Dr. Edwards & Major Eaton. These two forms differ considerably, but they
probably belong to one species. They are both undoubte ly annual.

SAPIUM sYLVATICUM. Stillingia sylvatica, Linn. Mant. p. 126 ; Ell. Sk. 2, p. 560. Var. LINEA-
RIFOLIA : foliis anguste-linearibus argute serrulatis, serraturis glandulosis. Ravines on the
San Pedro river and on limestone rocks higher up on the Rio Grande; Schott, Bigelow, Leaves
24-3 inches long, 2-3-lines wide, somewhat coriaceous. Spikes androgvnous, 1-2 inches long,
2-4 of the lowest flowers fertile. Staminate flowers 5-10 on short pedicels under each scale or
involuere. Calyx hemispherical, 2-lipped ; the border slightly crenulate. Stamens 2: filaments
united at the very base.

SAPIUM SALICIFOLIUM, H. B. K. Nov. Gen. & Sp. 2, p. 65. Between Rayon and Ures, Sonora;
Thurber. ' A shrub 10-12 feet high with somewhat erect and slender branches, and deep green
foliage." Leaves 14-2 inches long, and 3-4 lines wide, somewhat coriaceous, rather acute,
remotely denticulate, the upper side (when dry) of a verdigris green color, often “ih 2 minute
glands atthe base. The specimens are in fruit. The capsule is solitary and apparently axillary, on
& short peduncle, smaller than in S. sylvatica, but in other respects similar, and without any
remains of the staminate spike. On the Sierra dela Nayoz, in Sonora, Mr. Schott gathered
Specimens of what seem to be the same plant. The leaves are similar in form, but a little wider,
more membranaceous and rather obtuse, or sometimes even emarginate. The staminate spikes
are without any fertile flowers at the base. There are 10—20 sessile flowers under each scale or
involucre. The calyx is manifestly 2-lipped, and the stamens seem to be constantly two, the

26k

202 UNITED STATES AND MEXICAN BOUNDARY.

filaments of which are scarcely united at the base. Fertile flowers not seen. Fruit solitary
and resembling that of S. salicifolium, except in being larger. The plant seems to be dioecious.

The genera Sapium and Stillingia are, we think, very properly united by Klotsch. Long
ago Ad. Jussieu remarked (Zuphorb. p. 50) that they were scarcely distinct and ought perhaps to
form one genus. The calyx of the staminate flowers is the same in both, although it is described
as tubular in the latter. The number of staminate flowers under a single bract or involucre is
not a sufficient distinction. There are several in S. sylvaticum and S. salicifolium ; but in S.
annuum and 5. ligustrinum they are solitary.

SIMMONDSIA CALIFORNICA, Nutt. in Hook. Lond. Jour. Bot. 3, p. 400,1. 16 ; (Tas. XLIX.) Dry
hills along the Gila and westward to San Diego; not uncommon in various parts of southern
California. Nuttall did not see the fruit. This is about three-fourths of an inch long, ovate
and obtusely triangular, abruptly pointed, and somewhat resembles the gland of an acorn. At
maturity it splits into 3 valves; the dehiscence being loculicidal. It usually contains but a
single seed, which is conformed to the cavity of the pericarp. The embryo is wholly destitute
of albumen. "The cotyledons are very thick and fleshy, and they cohere together, so that they
only separate after considerable boiling. The radicle is minute and superior. The nuts have
somewhat the flavor of filberts, but the after-taste is rather nauseous, and they are apt to cause
purging. Mr. Nuttall thinks this genus is very clearly allied to Garrya, but it differs in several
important characters. Lindley places it, without a remark, in Euphorbiaces, ard we are inclined
to follow him, notwithstanding the absence of albumen.

Suborder BATIDEJE.

Batis MARITIMA, Linn.; Torr. in Smithson, Contrib. 6, p. t. 11. On the beach, et Brazos
Santiago ; Schott.

Batis CALIFORNICA, Torr. l. c. Salt marshes near San Diego, California; Parry. We have
received no more specimens of this plant since it was first described, and are by no means certain
that it is specifically distinct from B. maritima.

URTICACEAE.

URTICA URENS, Linn. Spec. 2, p. 284 ; Miguel in Mart. Fl. Bras. fasc. 12, p. 195, t. 67. In the
streets of Monterey, California, where it has manifestly been introduced, May ; Parry. Wet
ravines near the Organ mountains, New Mexico ; Bigelow.

URTICA PURPURASCENS, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 169; Gray, Man. ed. 2,
p. 398. San Antonio, Texas; Thurber. Near Eagle Pass on the Rio Grande; Bigelow. It is
commonly simple, but Dr. Bigelow’s specimens are branching from the base.

URTICA GRACILIS, Ait. Hort. Kew 3, p. 341; Gray, l. c. Banks of the Limpio, July ; Bigelow.
California; Rev. A. Fitch. Stem 4-5 feet high. Leaves often ovate and sometimes slightly
cordate, coarsely toothed. ۱

BOEHMERIA CYLINDRICA, Willd. Sp. 4, p. 340. Banks of streams and wet thickets, western
Texas.

PARIETARIA DEBILIS, Forst. S. FLORIDANA, Weddell, Monogr. Urtic. p. 316. P. Floridana,
Nutt. Gen. 2, p. 208; Ell. Sk. 1, p. 516. Rocky places along the upper Rio Grande and in
Sonora, March—May. (No. 1861, Wright.) The leaves vary from nearly orbicular to ovate-

BOTANY. 203

oblong. The narrower leaved forms approach P. Pennsylvanica, Found in many parts of the
world, but not in Europe.

11015017108 LuPuLvs, Linn. Sp. 2, p. 1028; Torr. Fl. N. York, 2, p. 225, d in Sitgr. Rep. p.
173 H. Americanus, Nutt. Pl. Gamb. in Jour. Acad. Phil. n. ser. 1, p 181. Banks of the
Mimbres ; Bigelow. (No. 1860, Wright )

Morus RUBRA, Linn l. c. p.986 ; Micha. f. Sylv. 2, t. 116. Common in western Texas, New
Mexico, and Chihuahua; often flowering and bearing fruit when alow shrub. (No. 1859, Wright.)
Nos. 2498 and 2416, Berlandier. The leaves are commonly about two inches long, but those
of vigorous shoots are sometimes 11 inches long and 8 inches in diameter.

CELTIS OCCIDENTALIS, Linn, Sp. (ed. 2) 2, p. 1478; Michz. f. Sylv. 2, 1. 114 ; Torr. Fl. N. York,
2, p. 167. C. crassifolia, Lam. Western Texas and New Mexico. We quite agree with Dr.
Gray in regarding C. crassifolia as a mere variety of this species. Some of our specimens show
a transition to C. Mississippiensis, Bosc, (C. integrifolia, Nutt ,) which Dr. Gray suspected was
not distinct.

CELTIS (Momista) PALLIDA (n. sp.): ramis incano-puberulis ; spinis subgeminis rectis ; foliis
ovatis vel ovato-oblongis pauci serratis integerrimisque puberulis crassiusculis breviter petiolatis
basi acutiusculis raro leviter cordatis ; cymulis polygamis 3-5-floris petiolo paullo longioribus ;
bacca ovata laevi glabra. (TAB. L.) Common in western Texas and along the Rio Grande,
from Fort Duncan to the Gulf, and west to Magdalena in Sonora. It is called Grangeno in Neuvo
Leon. (No. 1858, Wright ; No. 3021, Berlandier.) A shrub 6-10 feet high, with numerous
flexuous spreading branches. Thorns from 2 or 3 lines to an inch in length. Leaves 8-14 lines
long, mostly acute, 3-nerved, minutely pubescent and somewhat scabrous on both sides. Flowers
small, white; the lower ones of the cymule mostly male, with a rudimentary pistil ; the ter-
minal one perfect. Styles thick, divaricate, cleft nearly half their length, the undivided portion
rather shorter than the ovary. Berry about three lines long, orange, yellow, and red, with an
acid pulp, which is edible but rather astringent. This species seems to be nearest the Brazilian
C. orthocanthos, Planch,

ULMUS CRASSIFOLIA, Nutt. in Trans. Amer. Phil. Soc. (n. ser.) 5, p. 169. U. opaca, Nutt. Sylv.
1, p. 35, t. 11. On the banks of rivers, from San Antonio, Texas, to the Pecos river ; Schott.
Thurber, (No. 1857, Wright; No. 346, Coll. II, Texas, Drummond; No. 2546, Berlandier.) Mr.
Nuttall, in his Sylva, has overlooked his much earlier name and description of this species.

ULMUS ALATA, Michz. Fl. 1, p. 173; Micha. f. Sylv. 2,1. 127. Near Eagle Pass on the Rio
Grande ; Bigelow.

SAURACEA.

ANEMOPSIS CALIFORNICA, Nutt. in Tayl. Ann, Nat. Hist. 1, p. 136 ; Hook. & Arn. Bot. Beechey,
p. 390, t. 99. Wet places, San Luis Rey, California; Parry. Western Texas, Mew Mexico,
and Chihuahua, April—July.

شر ل۷ 0,1 ۵ 011

CERATOPHYLLUM DEMERSUM, Linn. Sp. p. 1409. In running water, near the southern bound-
ary line of Upper California; Parry.

BETULACEA.

Anus VIRIDIS, DC. Near San Diego, California; Parry. Our specimens are without fruit.
Dr. Parry informs me that this is a common species in California, and that it sometimes becomes

HAT Pinang SI T TS

204 UNITED STATES AND MEXICAN BOUNDARY.

a tree 40 feet in height, with a trunk 8 inches in diameter. We have specimens of another
Alnus, collected in California by Rev. A. Fitch, which seems to be A. rhombifolia, Nutt. It
differs from A. serrulata in the coarse teeth of the leaves, and from all other North American
species in the long acute base of the leaves.

_ALNUS OBLONGIFOLIUS (n. sp.): ramis glabris nitidis; foliis oblongo-lanceolatis utrinque
acutis subduplicato-serratis supra glaberrimis subtus minutissime pubescentibus utrinque viridi-
bus; nuculis apteris. Banks of the Mimbres and near Santa Barbara, New Mexico. (No. 1864;
Wright.) A tree 30 feet high. Leaves 23-31 inches long and 1-11 inch wide; unequally ser-
rate, serratures glandular at the tip; petiole about one-third as long as the lamina. Catkins
somewhat paniculate, ovate. Nutlets orbicular-obovate, without any trace of a wing.

SALICACEA.

SALIX LUCIDA, Muhl. Var. ANGUSTIFOLIA, Anders. Salices Bor.- Amer. in Proceed, Amer. Acad.
4. 8. lasiandra, Benth. Pl. Hartw. p. 335; Torr. Bot. Whippl. Rep. p. 138. Mountains of
California, (the precise station not recorded ;) Parry. ‘‘ A straggling shrub.”’

Saurix WRIGHTII, Anders. l.c. Borders of the Upper Rio Grande, in western Texas and Chi-
huahua ; also near Lake Santa Maria. (No. 1877, Wright.) A tree 15-to 25 feet high.

SALIX LONGIFOLIA, Muhl.; Anders. l. c. Between the Pecos and the Rio Grande, and westward
to the lower Rio Gila.

I have not ventured to name five or six other willows of the Mexican Boundary collections.
Mr. Anderson is preparing a more complete account of this exceedingly difficult genus. He has
shown that many of our Salices, until recently supposed to be different from any in the Old
World, are identical with European species, or only varieties of them. He desires contributions
of specimens from our botanists, that he may be able to perfect his contemplated work. .

POPULUS TRICHOCARPA, Torr. in Hook. Ic. 9, t. 878. Borders of Santa Clara river, near Buena-
ventura; Parry. A tree 30 feet high, with smooth bark. This species is easily distinguished
by the hairy fruit.

POPULUS MONILIFERA, Ait. ; Micha. f. Sylv. 1, p. 116, t. 96, f. 2. Borders of streams from
western Texas and New Mexico to California. This is the ordinary cotton-wood of the West.

POPULUS rREMULOIDES, Micha. Fl. 2, p. 143; Micha. f. Sylv. 1, p. 125, t. 99, f. c. Hills near
the Copper Mines, in fruit, June; Bigelow. (No. 1870, Wright.)

POPULUS BALSAMIFERA, L.; Micha. f. Sylv. 2, p. 121, t. 98, f. 1. Banks of the Mimbres ;
Bigelow.

POPULUS ANGUSTIFOLIA, James; Torr. Ann. Lyc. N. York, 2, p. 249 ; Nutt. Sylv. 1, p. 52, t. 16.
Near the Copper Mines of New Mexico and on the banks of the Mimbres ; Bigelow. This is the
Narrow-leaved Poplar of Lewis and Clark’s Travels. It is No. 817 of Fendler’s N. Mexican
Collection.

PLATANACEJE.

PLATANUS RACEMOSA, Nutt. in Audubon's Birds, 1, t. 362, & Sylv. 1, p. 47, t. 15; Newberry
Bot. Williamson & Abbott's Rep. p. 33, f. 10. P. Mexicana, Moric. P. Californica, Benth.
Borders of streams near San Diego, etc., California; Parry. Guadalupe Cafion, Sonora ;
Thurber. A large tree, sometimes 50-60 feet high. Hartweg states that in California he has
seen it 80 feet high and 12 feet in circumference.

ROTANY, 205

PLATANUS OCCIDENTALIS, L. Sp. 2, p. 999 ; Michx. f. Sylv. 1, ۸. 63. Devil's River valley, western
Texas; probably the western limit of this species ; Bigelow.

GARRYACEA.

GanRYA ELLIPTICA, Lindl. Bot. Reg. t. 1686. Sandy places near Monterey, California; Parry.
A shrub, seldom more than 5 or 8 feet high. Both sexes occur in Dr. Parry’s specimens.

GHARRYA WRIGHTII, Torr. Bot. Whipp. Rep. p. 136. Hills near the Copper Mines, New
Mexico, abundant; July.

GARRYA LINDHEIMERI, Torr. l. c. Western Texas and New Mexico; Wright. El Paso;
Thurber.

JUGLANDACEZ.

JUGLANS RUPESTRIS, Engelm. ; Torr. Bot. Sitgr. Rep. p. 171, t. 15. J. pyriformis, Liebm.
Vidensk. Meddel. Kjobenh. for 1850, p. 80? Common on the gravelly borders of streams in
western Texas from Devil’s river to the Pecos and Limpio; also at the Copper Mines. (No.
1029 and 2459, Berlandier.) The var. MAJOR, Torr. l. c. t. 16, seems to pass gradually into the
small-fruited form. They are found together, and the variety occurs also in Sonora. At San
Fernando, beyond Los Angeles, Dr. Parry found a Juglans in flower, which is probably a
variety of J. rupestris. The leaflets are 11-13, ovate-oblong, rather obtuse and sharply serrate.
He did not obtain the fruit.

CARYA OLIVÆFORMIS, Nutt. Gen. 2, p. 221. Juglans oliveformis, Micha. Fl. 2, p. 192; Micha.
J. Sylv. 1, t. 32. Western Texas, near the Rio Grande; Bigelow. The leaflets are only 9-11,
and the nuts much shorter than in the ordinary Pecan.

CUPULIFER.E.

CASTANEA CHRYSOPHYLLA, Dougl. in Hook. Fl. Bor.-Amer. 2, p. 159; Hook. Lond. Jour. Bot.
1843, 4. 16. Near Monterey, California, where it is a bush, only 2-3 feet high. At Santa Cruz,
in the same State, it becomes a tree, 50 feet high. "The nuts are small, like those of the beech,
but rounded on the angles.

Quercus GaMBELII, Nuit. Pl. Gamb. l. c. p. 179; Torr. Bot. Sitgr. Rep. p. 112 ; Liebm. Querc.
Neo.-Mex. & Calif. p. 169.* Mountains near the Copper Mines, New Mexico; Bigelow. Lieb-
mann reters to this species, No. 806, 809 and 810 b. of Fendler's New Mexican Collection.

Quercus LOBATA, Née in Anal. de Cien. Nat. 3, p. 270, (fide Liebm. l. c. p. 172.) Q. Hindsii,
Benth. Bot. Sulph. p. 55; Torr. Bot. Whipp. Rep. p. 138; Newberry in Pacif. 17. 17. Rep. Bot.
p. 27, fig. 5. Near Monterey and in other parts of California. A fine tree, allied to the white
oak of the Atlantic States, remarkable for its usually long acorns. Q. lobata is only a form
with shorter acorns.

QUERCUS TINCTORIA, var. ? CALIFORNICA, Torr. Bot. Whippl. Hep. p. 138. Q. rubra, Liebm. in
Benth. Pl. Hartw. p. 337, non Linn. Q. Kelloggii, Newberry, l. c. p. 28, f. 6. On mountains
east of San Luis Rey and San Diego, California; Parry. A middle-sized tree. It is called
black oak in California. The leaves when young are very downy underneath, and somewhat so
on the upper surface ; but they are nearly glabrous late in the season. Sometimes the acorn is
short and half immersed in the cup.

Published in ‘‘ Oversigt det Kgl. danske Videnskabernes Selskabs Forhandlinger og dets Medlemmers, i Aaret 4,
Kjobenhavn "'

206 UNITED STATES AND MEXICAN BOUNDARY，

QUERCUS COCCINEA, var.? MICROCARPA: foliis oblongis profunde sinuato-pinnatifidis utrinque
glabris nitidisve, sinubus obtusis, lobis (utrinque 2-3) parce dentatis, dentibus setaceo-acuminatis ;
fructibus solitariis geminisque, glande oblongo-ovata apiculata. Rocky ravines near the mouth
of the Pecos, and on the Limpio: Bigelow. Oak Creek, Texas; Schott. Differs from the
common state of Q. coccinea in the considerably smaller and less lobed leaves, in the acorns
being scarcely one-third as large, the cup not turbinate, and the gland longer in proportion to
its breadth.

Quercus NIGRA, Linn. ; Miche. f. Sylv. و1‎ t. 20; Torr. Fl. N. York, 2, p. 188, t. 105. Medina
Creek, above San Antonio, Texas; Parry. This appears to be the western limit of the Black-
Jack Oak.

QUERCUS OBTUSIFOLIA, Var.? BREVILOBA: foliis subcoriaceis obovato-oblongis basi cuneatis, lobis
brevibus obtusis supra viridibus subtus pallidis- pubescentibus ; fructibus sessilibus solitariis vel
geminis, cupula depressa hemispherica, glande oblongo-ovato obtusa.— Mountain gorges near
Howard's Springs, western Texas ; Bigelow. We refer this oak to Q. obtusifolia with much
doubt, but it seems more nearly allied to that species than to any other. It differs, however, in
its leaves being much smaller and far less lobed, more coriaceous and apparently evergreen.
The acorns, too, are smaller and the cup more shallow.

QUERCUS UNDULATA, Torr. in Ann. Lyc. N. York, 2, p. 248, t. 4; & in Marcy's Rep. p. ۰
Q. Fendleri, Liebm. l. c. p. 170.—New Mexico, near the Rio Grande. (No. 805 and 807, Fendl.
N. Mex. Coll.)

Quercus VIRENS, Ait.; Micha. f. Sylv. 1, p. 57, t. 12. Moist woods on the Gulf coast from the
Brazos to the Rio Grande, also along the latter river as high as the Pecos and Live Oak Creek.
At a distance from the coast it is commonly a shrub 4-6 feet high. "The leaves vary from nar-
rowly oblong to broadly ovate. On old trees they are mostly entire, but on young shoots they
are often sharply toothed.

Quercus Emory, Torr. in Emory's Rep. p. 152, t. 9. Q. pungens, & Q. hastata, Liebm. l. e. .

p. 171. Near the mouth of the Pecos and on the Limpio, Texas; Bigelow, Parry. Chihuahua;
Thurber. Sonora; Schott & Capt. E. K. Smith.—A widely spread shrubby evergreen oak, with
neat foliage and very small acorns. The small-leaved oak of Frémont, quoted by Liebmann
under his Q. chrysolepis, seems to be a variety of this species. No. 664, Wright, belongs to the
form called Q. pungens by Liebmann, in which the leaves are more deeply toothed or lobed
than in the normal state.

QUERCUS AGRIFOLIA, Née in Ann. de Cienc. Nat. 3, p. 281, fide Liebm.; Hook. Ic. 3, t. 377. Q.
oxyadenia, Torr. in Sitgr. Hep. t. 17, & Bot. Whippl. Rep. p. 138. Common on the mountains
of California, from the Upper Sacramento to the southern boundary line; Parry. East of San
Diego Dr. Parry saw trees of this oak which were 30 or 40 feet high. When growing singly,
it has a round top like the Live Oak, throwing out branches a few feet from the ground and
extending 30 feet or more from the trunk.

QUERCUS oBLONGIFOLIA, Torr. in Sitgr. Hep. p. 173, t. 19. Q. grisea, Liebm. l. c. p. 171.
Mountains of the Limpio, Texas (Bigelow), and westward to the range east of San Diego, Cali-
fornia; Parry. In Texas and western New Mexico this oak is commonly a shrub 6-15 feet
high ; but in California it sometimes attains the height of 20 or 30 feet. It has pale bark and
spreading branches. The acorns vary considerably in form. To this species I refer No. 665
and 1866, Wright,

BOTANY. 201

Quercus CHRYSOLEPIS, Liebm. l. c. p. 113; Benth. Pl. Hartw. p. 336. Q. crassipocula, Zorr,
in Pacif. R. Road Expl. 6, p. 365, t. 9. Q. fulvescens, Kellogg in Proceed. Calif. Acad. Nat.
Sc. 1, p. 67 & 11; Newberry l. c. p. 21, f. 5. Mountains of California, from Oregon to the
southern boundary line. An evergreen oak, 30-40 feet high, with pale bark. "The heart-wood
is dark-colored, and it is said to be good timber. The acorns are often of great size and the
cups extremely thick, as represented in my figure of Q. crassipocula, but sometimes not larger
than those of the Live Oak (Q. virens). We adopt Liebmann's earlier name for this beautiful
species,

QUERCUS DUMOSA, Nutt. Sylv. 1, p. 7? Near San Diego, California; Parry. A shrub, 5-8
feet high, and very densely branched. The leaves are sempervirent, ovate, and 8-10 lines long.
Our specimens accord well with Nuttall’s description; but he did not see the acorns. These are
sessile, solitary and in pairs, about three-quarters of an inch long; the cup hemispherical ; the
gland ovate-oblong, tapering to a point and scarcely more than one-third of an inch in diameter
at the base. Dr. Parry states in his notes, that the leaves are sometimes larger and oblong.

QUERCUS ACUTIDENS (n. sp.): foliis oblongis coriaceis basi acutiusculis vel cuneatis inequaliter
grosse dentatis, dentibus cuspidatis pungentibus supra glabris nitidulis subtus pallidis minute
tomentosis; fructibus sessilibus solitariis; cupula hemispherica, squamis incrassatis; glande
oblongo-ovata. (Tas. LI.) Near San Luis Rey, California ; Parry.—'* Generally a low shrubby
bush; but sometimes a tree 20 feet high." The leaves are 11-2 inches long and 8-10 lines
wide. The acorns are more than an inch long and much resemble those of the White Oak (Q.
alba).

Quercus coxrERTIFOLIA, H. B. K. Pl. ZEquin. 2, p. 53, t. 942 Near the Copper Mines, New
Mexico; Thurber; No. 1869, Wright. Sierra del Pajarito, Sonora; Schott. San Francisco
mountain; Captain E. K. Smith.—A small tree. Liebmann seems to have referred it to Q.
cinerea, as he includes that species in his list of New Mexican Oaks (doubtless of Wright's

collection) which he examined in the herbarium of Sir William Hooker, and Mr. Wright found

no other Quercus in New Mexico resembling Q. cinerea. Our plant has thickly coriaceous,
lanceolate, acute leaves, which are 3-4 inches long, and from three-quarters of an inch to nearly
an inch broad. They are commonly entire and revolute on the margin, but occasionally show
1-3 minute teeth, nearly smooth and pale green above, very densely yellowish-tomentose
underneath. The acorns are nearly sessile, solitary and in pairs; the cup hemispherical with
broad, obtuse, pubescent scales, and the unripe acorn is ovate. Q. cinerea differs in its much
thinner non-revolute leaves, and thin pale pubescence. The acorns also seem to differ, but we
have not seen the ripe ones of Q. confertifolia.

RAFFLESIASA,
PILOSTYLES THURBERI, Gray, Pl. Thurb. in Mem. Amer. Acad. n. ser. 5, p. 326. (Tas. LII.)
On a mountain near the Gila, June, parasitic on the branches of Dalea Emoryi; Thurber.
CONIFERJE
EPHEDRA ANTISIPHILITICA, &erland.; C. A. Meyer, Ephedr. 101, ex Endl. Syn. Conif. p. 263.
Western Texas, from the Nueces to the Rio Grande, and from Frontera to Eagle Pass, April,

May. San Diego, California; Parry. Ranconado Pass, Cohahuila ; T'hurber. Between Mapami
and Guajaquilla, Durango; Gregg, (No. 1882 and 1883, Wright.) The Mexicans call the plant

pl‏ اه RT‏ و روم

208 UNITED STATES AND MEXICAN BOUNDARY.

Tepopote and Caiatilla, and use a decoction of it as a remedy for gonorrhea. It is a shrub
about two feet high with numerous branches, the sheaths of which are short, 2—3-cleft, the divisions
lanceolate or subulate, spreading or recurved, at length deciduous. Sterile aments opposite or
aggregated at the nodes. Anthers mostly 4. Fertile opposite, 1-2-seeded. The sheaths of
the ament mostly 4, deeply 2-cleft and somewhat fleshy. Seeds smooth, when in pairs flattened
on the face, when solitary they are larger and obtusely triangular, nearly twice as long as the
inner scales. Tube of the micropyle very obliquely truncated.

There are numerous specimens in the Mexican Boundary Collections, of an Ephedra, found at
Frontera and near Doria Ana, which may be a distinct species, but I suspect it is an abnormal state
of E. antisiphilitica. It is a shrub of 3 to 5 feet in height. The fertile aments are ovate-oblong,
and instead of four decussating pairs of connate thickish, or at length succulent scales, there
are from 16 to 20 very broad, entire, thin and membranaceous scales, which are distinct, contracted
into a short stipe at the base, and irregularly inserted on the axis. They are at first loosely
imbricated, but at length more or less spreading. The seed (immature) is ovate with a tapering
point, and except the long obliquely truncated micropyle, is wholly covered with the scales.

Another Ephedra occurs at Fronteras, and it has also been found at Ojo de Vaca in Chihuahua,
by Mr. Thurber. It resembles the one just noticed, but the scales, though equally numerous
and arranged in the same manner, are smaller and less membranaceous. They are also minutely
erose-serrulate, The seeds, however, are roughened with minute points which are sometimes
disposed in short transverse rows, 80 that, unless pretty highly magnified, they look like
wrinkles of the testa. "The micropyle is conspicuously exserted beyond the scales. "There are
usually but two seeds in each fertile ament, but not unfrequently three. The arrangement of
the scales of the fertile aments in these two Ephedre is so much at variance with the character
of the genus, that it seems most probable they are abnormal forms.

Pinus EpULIS, Engelm. in Wisliz. Hep. p. 88; Torr. in Bot. Sitgr. Rep. p. 173, t. 20, & in
Bot. Whippl. Rep. p. 140. P. Fremontiana, Gord. in Jour. Hort. Soc. Lond, 4, p. 293, cum
ic. xyl.; excl. Syn. Endl. & Torr. Mountains of western Texas, near the Rio Grande, New
Mexico, Chihuahua, and Sonora. (No. 1889, Wright; No. 830, Fendler; New Mexico.) The
cones and nuts greatly resemble those of the next species. The leaves are almost always in
pairs, very rarely in threes. Gordon, in the work just quoted, refers this species to P. mono-
phylla, Torr. & Frém., the name of which, he says, was changed to P. Fremontiana by Pro-
fessor Endlicher, (Syn. Conif. p. 183,) because that botanist having ‘‘ afterwards examined more
perfect specimens, found that the leaves were in twos and threes, and that the solitary leaves
arose from Dr. Torrey's specimens being gathered from stunted plants." Now, we find that
Endlicher in his Synop. Conif. has no remarks of this kind. His entire description is taken
from mine in Frémont’s 2d Report; but he regards what I call a single leaf, as consisting of
two united leaves. Col. Frémont found extensive forests of the tree in his first expedition, as
well as in his journey of 1853-54. Dr. Bigelow also found it in Whipple's expedition on the
mountains of California, but in consequence of an oversight it was not included in the Botanical
Report of that expedition. The characters appearing to be so constant, I retain the species, and
wait for additional observations on the plant in its native places of growth. It would be de-
sirable, also, to test the constancy of the species by cultivation. Gordon’s figure (l. c.) repre-
sents the ordinary state of P. edulis.

Pinus Luaveana, Scheide 6 Deppe in Linnea, 12, p. 488. P. cembroides, Newberry, in Pacif.

BOTANY, 209

Railroad Rep. 6, (Bot.) p. 44, cum ic. xylog. non Zucc. (Taste LIII.) On the mountains east
of San Diego; Parry. “A tree 30 or 40 feet high, and often 12 to 18 inches in diameter, with
& round, even head. The young trees remarkably symmetrical, like some cedars, with the
broad base resting on the ground, the trunk and branches being completely hidden by the
dense foliage. The upper branches are usually loaded with cones." The leaves are mostly in
fours, but sometimes in threes, and often in fives. They are crowded towards the summit of the
branches, 14 to 2 inches long, and a little curved. Cones about 2 inches long, globose-ovate,
disposed near the extremity of the last year's growth, and are at a right angle to the branch.
They are often somewhat gibbous, the convexity being upward. The scales are few, with the
summit obtusely pyramidal. Seeds obovate, wingless, large for the size of the cone, with a thin
fragile shell, and an edible kernel. The Indians collect large quantities of them for food.
When fresh and slightly roasted they are very palatable. There can be little doubt of this
being distinct from the Pinus cembroides of Mexico. The leaves of the latter are shorter and
constantly in threes, and the cones are three or four times Jarger, with much more numerous
scales.

PINUS PONDEROSA, Dougl.; Newberry, l. c. p. 36, cum ic. zylog. P. Engelmanni, Torr. in Bot.
Whipp. Hep. p. 141. P. brachyptera, Engelm. in Wisliz. Hep. p. 89. Mountains near the
Copper Mines, New Mexico. The leaves in some of the specimens are ten inches long. Dr.
Newberry, who had abundant opportunity of studying the forest trees of New Mexico, California,
and Oregon, in their native place of growth, has clearly shown (as we think) that P. brachyptera,
Engelm., is identical with the earlier published P. ponderosa, Douglas, to which species he also
refers P. Benthami, Hartw., and P. Beardsleyi, Murr. in Edinb. New Phil. Jour. 1855, p. 286.

Pinus MURICATA, D. Don in Linn. Trans. 17, p. 441; Lindl. in Jour. Hort. Soc. Lond. 4, p.
216, cum ic. xylog. P. Edgariana, Hartw. l. c. 3, p. 217. (TABLE LIV.) Near Monterey,
California; Parry A small tree, seldom more than 15 or 20 feet high. Leaves of a deep vivid
green. Our cones (which are, perhaps, not quite mature) are smaller than the one figured in
the Hort. Trans. 1. c.

Pinus OHIHUAHUANA, Engelm. in Wisliz. Hep. p. 103? Hills at the Copper Mines, New
Mexico; Bigelow. (No. 1888, Wright.) Our specimens accord well with Dr. Engelmann’s
description, except that the apex of the scale, instead of being pointless, is armed with a small
recurved prickle; but this is very fragile, and may have been rubbed off in the specimens
collected by Wislizenus. The cones (not mature) are conical-ovate, rather pointed, about 2
inches long, and an inch and a quarter near the base. "The leaves are remarkably slender.

PINUS INSIGNIS, Dougl. in Loud. Arboret. 4, p. 2265, fig. 2170-2172; Torr. in Whipp. Rep. p.
141. P. tuberculata and P. radiata, D. Don.—(Tab. LV.)—Near Monterey, California; Parry,
Hartweg remarks (Hort. Jour. 2, p. 123) that in close woods, a mile or two from the shore, the
leaves and cones are much larger than when the tree grows near the beach. Cones usually 3
or 4 together, and pendulous. They are almost always imperfect on one side, and thus are
more or less gibbous.

PINUS DEFLEXA (n. sp.) : foliis ternis وسوس‎ one ) tenuibus, vaginis brevibus; strobilis
oyatis acutis; squamarum apophysi compresso idata deflexa, umbone lato-imeinato recurvo;
seminibus ala duplo brevioribus. (Tab. LVI. ) تست‎ of the Cordilleras of California; Parry,
“A handsome tree, with an even columnar trunk.’’ This species is closely allied to P. rigida

27 k

۱

~ ومع gg‏ بر

210 UNITED STATES AND MEXICAN BOUNDARY.

of the Atlantic States, but is sufficiently distinct. I have not been able to refer it to any
Californian or Mexican pine hitherto described.

PINUS SABINIANA, Dougl.; Lamb. Pin. (ed. 2) 2, p. 146, t. 80; Endl. Syn. Conif. p. 159.
(Tab. LVII.) Mountains east of San Diego, California; Parry. One of the largest of the
California pines, being often from 60 to 100 feet high, and the trunk 2 to 4 feet in diameter.
It is remarkable for its spreading branches, and for its large heavy cones with strong hooked
scales. The nuts are large and edible. Immense quantities of them are collected by the Cali-
fornia and Oregon Indians, who depend upon them for a large portion of their winter food.

Pinus Torreyana (Parry MSS.) : foliis quinis elongatis (6-9-unc) rigidis, vaginis squamosis
(5-10-lin.) strobilis subglobosis, squamarum apophysi elongato-pyramidata deflexa, 6
continuo obtuso subrecurvo. (Tas. LVIII and LIX.) Bluffs near the mouth of Solidad creek,
10 miles north of San Diego, California; Parry. A small tree, seldom more than 20 or 30
feet high, with a trunk 12 to 15 inches in diameter ; often almost prostrate from its being exposed
to strong ocean gales. Bark of the young branches whitish ; the lower part of the trunk scaly.
Branches horizontal, but curved upward towards the extremity. Leaves stouter than in any
other North American pine, rough on the margin, abruptly pointed, the sheaths nearly two
lines in diameter and an inch and a half long in the young leaves. Cones conical-globose, about
4} inches long. Seeds, without the wing, three-fourths of an inch long, with a thick bony
shell. This is the only pine of the section Pseudo-strobus found within the limits of our flora.
P. Apulcensis which resembles it, differs in its more slender and shorter leaves, and ovate
smaller cones, &c. It is also allied to P. Orizabee, Gordon in Lond. Hort. Jour. 1, p. 237 cum
icon., but that has very slender leaves, which are extremely rough on the angle, and ovate cones.

PINUS LAMBERTIANA, Dougl. in Linn. Trans. 15, p. 50; Lamb. Pin. (ed. 2) 1, p. 51, 1. 34; New-
berry, l. c. p. 42, fig. 14. On the mountains east of San Diego, California; Parry.

Axsres Douenasu, Lindl.; Nutt. Sylv. 3, p. 136, t. 111; Hook. Fl. Bor.-Amer. 2, p. 162,
4,115; Newberry, l. c. p. 54. fig. 20 Gt. 8. Mountains east of San Diego, California ; Parry.
Mountains of western Texas and New Mexico; Bigelow. A noble tree, 50-100 feet high. In
Oregon it sometimes attains the height of 300 feet.

TaxopiuM DISTICHUM, Rich. Conif. p. 52, t. 10. Cupressus disticha, Linn.; Michz. f. Sylv. 2,
p. 329,1. 151. Valley of the Rio Grande below the mouth of Los Moros, in western Texas,
Cohahuila, and Neuvo Leon. (No. 2213, Berlandier.) Below the Salado this noble tree is often
` geen in the river itself, sometimes where the water is 16 feet deep and the current strong; Schott.
Dr. Bigelow found it at Santa Rosa, Cohahuila, flowering in January.

SEQUOIA SEMPERVIRENS, Endl. Conif. p. 198; Newberry, l. c. p. 51, fig. 23. Taxodium semper-
virens, Lamb. Pin. (ed. 2) 2, t. 64. Woods in the Coast Range of mountains east of Monterey,
south of which it is very rare. This is the celebrated redwood of California; the most valuable
timber tree of that State.

JUNIPERUS TETRAGONA, Schlecht. var. osrEosPERMA, Torr. in Whippl. Hep. p. 141. Dry rocky
places, San Felipe, &c., California; Parry. A much branched shrub of regular conical form,
6-13 feet high.

JUNIPERUS PACHYPHLÆA, Torr. l. c. Hill sides, western Texas, New Mexico, Chihuahua, and
Sonora. The fruit varies from 3 to 5 lines in diameter, and is sometimes only two-seeded.
When unusually large it sometimes contains 4 and even 5 seeds.

JUNIPERUS OCCIDENTALIS, Hook, Fl. Bor.-Amer. 2, p. 166; Torr. l. c.; Newberry l. c. p. 59, t.

BOTANY。 211

10. J. Andina, Nutt. Sylv. 3, p. 95, t. 110. Rocky places, valley of the Pecos; Bigelow. It
is also a native of California and Oregon.

JUNIPERUS VIRGINIANA, Linn.; Micha. Sylv. 2, p. 353, t. 156. Rocky hills, western Texas;
Bigelow.

LIBOCEDRUS DECURRENS, Torr. in Smithson. Contrib. 6, p. T, t. 3, & in Whippl. Rep. p. 140.
Summit of the mountains east of San Diego, California; Dr Parry. A noble tree; sometimes
150 feet high. The wood resembles that of the white cedar.

THUJA GIGANTEA, Nutt, in Jour. Acad. Phil. 7, p. 52; & Sylva. 3, p. 102 t. 111; Newberry, 1. c.
p. 57, fig. 22. Near San Diego and other parts of California; Parry. This is the Arbor vite
of California and Oregon. It occurs as far north as Nutka Sound.

Cupressus MACROCARPA, Hartw. in Jour. Hort. Soc. Lond. 2, p. 187, & 4, p. 296, cum icon.
xylogr. C. Macnabiana, Murray in Edinb. New Phil. Jour., April, 1855? Near the seashore
at Monterey, California; Parry. A tree often 30 feet or more in height, with a trunk 18 inches
in diameter. Hartweg states that he has seen it 60 feet high, with a trunk of 3 feet in diameter.
The head is usually depressed and very dense. Branchlets distinctly quadrangular, rigid, and
stouter than in J. Virginiana. Leaves closely imbricated, rhombie-ovate, obtuse, very thick,
depressed each side of the blunt keel. Sterile aments globose-ovate, 14 line long. Anthers
4-celled. Fruit the size of a large nutmeg, globose. Scales 6, thick and woody, irregularly 4
to 5-angled, each with a strong excentric protuberance or blunt point. They are closely joined
at first, but at length separate from one another. Seeds 6 to 8 under each scale, angular by com-
pression, narrowly winged,

Cupressus GovENIANA, Gordon in Jour. Hort. Soc. Lond. l. c. p. 295, cum icon. xylogr. On the
mountains east of San Diego, California ; Parry. A shrub 6 to 10 feet high, slender, and mod-
erately branched. Leaves as in C. macrocarpa, except that they are less appressed. Sterile
aments numerous, oblong. Fruit 4to 6 lines in diameter; scales 10, mucronate in the depressed
centre. Dr. Parry thinks he has seen forms intermediate between this and the last species, but
none such were among his specimens.

LEMNACEJE.

Lemna TRISULCA, Linn.; Kunth, Enum. 3, p. 5; Torr. Fl. N. York, 2, p. 246. On the San
Felipe creek below the mouth of the Pecos; Bigelow, Schott. On the Mimbres, New Mexico ;
Thurber. (No. 1890, Wright.) ۱

LEMNA MINOR, Linn.; Kunth, l. c.; Torr.l. c. In running water, San Luis Rey, California,
associated with Azolla; Parry. Cimieluque Springs, Chihuahua; Bigelow. (No. 1892, Wright.)
The specimens are without flowers or fruit, so that we are not certain of the species.

Lemna potyrruiza, Linn.; Kunth, l. c.; Torr. l. c. On the surface of water, borders of the
Limpia and other streams, Texas ; Bigelow. Cimieluque Springs, Chihuahua ; Wright.

TYPHACEZ,

Typua LATIFOLIA, Linn.; Kunth, Enum. 3, p. 90; Torr. Fl. 2, p. 247. In water, Painted
Caves, western Texas; Bigelow.

NAIADACEA.

Nats FLEXILIS, Rostk.; Kunth, Enum. 3, p. 114. N. Canadensis, Michx. Fl. 2, p. 220; Torr.
Fl. N. York, 2, p. 250. Western Texas; Bigelow, Wright. —

212 UNITED STATES AND MEXICAN BOUNDARY.

ZANNICHELLIA PALUSTRIS, Linn.; Kunth, Enum. 3, p. 124; Torr. l. c. p. 253. Slow-flowing
streams and stagnant waters, western Texas, Chihuahua, and Sonora.

POTAMOGETON PECTINATUS, Linn.; Torr. Fl. New York, 2, p. 247. P. marinum, Linn.; Micha.
Fi. 1, p. 102. Flowing water near San Diego, California; Parry. Tucson, Sonora; Schott.
(No. 1895, Wright.)

POTAMOGETON HYBRIDUS, Miche. Fl. 1, .م‎ 101; Torr. l. c. In water on the prairies of the
Guadalupe river, Texas, May ; Wright.

POTAMOGETON PAUCIFLORUS, Pursh, Fl. 1, p. 121; Torr. l.c. P.gramineus, Miche. Fl., p. 102,
non Jinn. Stagnant water of the Limpio, July ; Bigelow.

POTAMOGETON LUCENS, Linn.; Kunth, Enum, 3, p. 132; Torr. l. c. p, 255. San Antonio,
Texas, to the Rio Grande. :

POTAMOGETON NUTANS, Linn.; Kunth, Enum. 3, p. 127; Torr.l. c. p. 253. Waters of the
Limpio, Texas; Bigelow. Ojo Caliente, Chihuahua ; T'hurber. Los Noyales, Sonora; Capt,
E. K. Smith.

ALISMACEA, by Dr. George Engelmann.

SaGITTARIA SIMPLEX, Pursh, Fl. 2, p. 397; Gray, Man. ed. 2, p. 439. In ponds, western
Texas; Wright.

SAGITTARIA CALYCINA (Engelm. MSS.): pedicellis fertilibus sterilia aquantibus; fructiferis re-
curvatis ; floribus omnibus hermaphroditis, fertilibus subdodecandris, sterilibus polyandris ovaria
pauca sterilia gerentibus ; filamentis subulatis leviusculis seu tenuiter papillosis antheram late
ovatam subeequantibus seu paullo superantibus ; stylo erecto ovario longiore in carpellis maturis
obovatis duplo longioribus horizontali ; sepalis orbiculatis carpellorum capitatum arcte involven-
tibus.

Var. a. MAXIMA : foliis maximis sinu latissimo hastatis, lobis divaricatissimis tenuiter subulato-
appendiculatis ; scapo robusto ramoso ; bracteolis lanceolatis acutis ; verticillis fructiferis plu-
ribus capitulis magnis.—On the Red river, Louisiana; Dr. Hale.

Var. f. MEDIA: foliis minoribus sinu latissimo hastatis lobis divaricatis s. divaricatissimis
acuminatis; scapo debili simplici verticillo infimo solum (raro duobus) fructifero; bracteis ova-
tis obtusis ; capitulis minoribus.—Saline swamps, Jefferson county, Missouri; Engelmann.

Var. y. FLUITANS : foliis oblongo-linearibus fluitantibus; scapo debili verticillis sepe 1—2-floris;
bracteis obtusis ; pedicellis elongatis inequalibus; capitulis minoribus.— Ponds and slow-flowing
waters, western Texas. Wright, No. 1899. Also in Missouri, and in the Merrimac river, Massa-
chusetts ; Engelmann.

[Dr. Bigelow collected near San Elceario, on the Rio Grande, a Sagittaria which was over.

looked when Dr. Engelmann revised the genus in my herbarium in 1856. It seems to be the
same as a plant from western Texas, which Dr. E. named, provisionally, SS. longiloba, and which
he regarded as very near S. simplex. We can find no sufficient characters for distinguishing it
from that species. 了 he leaves, however, are sagittate, with very long, narrow, and vider
diverging lobes, a state in which we have never seen S. simplex. .ل‎ T.]

BOTANY. 213
ORCHIDACEA.

PLATANTHERA LEUCOSTACHYS, Lindl. Gen. & Spec. Orch. p. 288; Hook. Fl. Bor.-Amer. 2, p.
198. Santa Cruz, Sonora; Thurber. Near Montery, California, June. (No. 1900, Wright, a
slender variety.) We have what we regard as the same species, from Mokelumne and Monterey,
California, collected by Mr. Rich, and from Observatory Inlet, British America. Mr. Rich's
specimens show a transition from the stouter form, with a dense inflorescence, to the slender
variety, with more scattered flowers, of the plant collected by Dr. Parry.

PLATANTHERA DILATATA, Lindl. p. 287; Torr. Fl. N. York, 2, p. 267. Mountains east of San
Diego, California, May ; Parry.

EPIPACTIS GIGANTEA, Dougl. in Hook. Fl. Bor.- Amer. 2, p. 202,1. 202. Moist ravines near
the mouth of the Pecos; Bigelow. (No. 19015 Wright.) The leaves in Mr. Wright's specimens
are narrower than in the Californian plant, but in Dr. Bigelow’s they are quite as broad,

BLETIA APHYLLA, Nutt. Gen. 2, p. 194. Western Texas; Wright. Sepals deep brownish pur-
ple. Petals dull brownish yellow ; the 3-lobed lip with 5 broad plaits or folds, purplish.

AMARYLLIDACEAE.

HABRANTHUS ANDERSONI, Herb. in Lindl. Bot. Reg. t. 1345: Var. TExaNvs, Bot. Mag. t. 3590.
Western Texas, from San Antonio to the Rio Grande, October. The peduncles are often 6
inches long. (No. 1904, Wright.)

COOPERIA PEDUNCULATA, Herb. Amaryll. p. 179, t. 42, f. 3-5, din Bot. Mag. t. 3739. Prairies,
Texas, from the Blanco river to the Rio Grande; also in Nuevo Leon, March—October. (No.
1902, Wright.)

CoopPERIA DRUMMONDI, Herb. in Bot, Heg. t. 1835. On hills San Antonio, Texas, to the Rio
Grande, August—October. (No. 1902, Wright.)

AGAVE AMERICANA, Linn. Sp. p. 461; Kunth, Enum. 5, p. 819. Western Texas, bordering
the Rio Grande, and in the Mexican States, west; also on the Gila. (No. 1906, Wright?)
This is one of the species called Maguey by the Mexicans. It is an exceedingly useful plant, as
will be seen from Mr. Schott’s notes. In many parts of Mexico, where it is now very common,
it has doubtless been introduced.

AGAVE AMERICANA, 87 LATIFOLIA : foliis ovatis acuminatis; floribus minoribus. Hills near
the Copper Mines of New Mexico ; Emory ; and near Rock Creek; Bigelow. The leaves are more
than a foot long and 4 or 5 inches wide, forming a cone which is from 23 to 3 feet in diameter ;
the margin armed with short spreading or reversed prickles. From the centre rises a flower
stalk to the height of 10 feet. Only the withered and somewhat persistent flowers were col-
lected. These are scarcely one-third as large as those of the narrower leaved plant. The capsule
is smooth, oblong, an inch and a half long, and three-fourths of an inch in diameter. ۵
yet in doubt as to whether this is a distinct species from A. Americana. Both are called Maguey
in some parts of New Mexico and on the Gila, but sometimes the latter only is so named, and
the other Mescal.

"AGAVE LECHEGUILLA (n. sp.?): foliis anguste lanceolatis crassis patulis margine remote acu-
leatis; spica longissima ; floribus subsessilibus sepissime per paria approximatis; perianthii
segmentis (uncialibus) erectis.—Mountains near El Paso, and along the Rio Grande downward ;
common, growing in patches, May—June. (No. 682 and 1907, Wright.) Caudex 4-6 inches

214 UNITED STATES AND MEXICAN BOUNDARY.

high. Leaves 12-15 inches long and 1-14 inch wide, thick, rounded underneath and somewhat
channelled above, terminating in a stout spine, the margin armed with short strong hooked
prickles, which are usually reversed. Scape 6-10 feet long, the upper part pretty thickly
covered with flowers, which are mostly in pairs (the lowest in threes) and arise from very short
(1-2 lines) forked peduncles or branches. Bracts lanceolate from a broad clasping base, 2 lines
long, deciduous. The perianth above the ovary is about an inch long, white with a tinge of
yellow, and the segments are narrowly-oblong. S'amens and style much exserted. Stigma
clavate, obtuse, obscurely 3-lobed. Capsule about an inch long and half an inch in diameter,
erect, obtusely triangular, with a short abrupt acumination. Seeds in a double series, semior-
bicular, compressed vertically, black and shining. We cannot identify this species among those
described by Kunth and later writers. “The fibres of the leaves are used for making coarse ropes,
bagging, etc.

AGAVE GEMINIFLORA, Gawl. in Brand's Jour. Sc. 1, t. 1? var. SONORA : foliis angusto-lineari-
bus elongatis crebris superne concavis, subtus rotundatis, apice terretibus convolutis in spinam
terminalem excurrentibus, margine filamentosis; spica longissima, floribus per paria approxi-
matis; perigoniis (uncialibus) tubuloso-infundibuliformibus.—Sierra del Pajarito, Sonora,
August ; Schott. Leaves all radical, 6-12 inches long and 3-4 lines wide ; the margin splitting
off into very fine white threads and entirely destitute of spines or serratures. Scape (including
its spike) 5-6 feet high. "The flowers in pairs on very short erect stalks. The perianth above
the ovary is about an inch long, with à somewhat funnel-form tube, and narrowly oblong seg-
ments, which are at first a little spreading, but afterwards erect. Stamens and style exserted
and the linear anthers, as usual, very large for the size of the flower.

7 AGAVE PARVIFLORA (n. sp.): acaulis ; foliis lineari-lanceolatis basi valde dilatatis infra medium

margine catilagineo-denticulatis, ultra medium filamentosis; spica elongata ; pedunculis bre- .

vissimis dissitis 2—4-floris; perianthiis (vix semiuncialibus) subcampanulatis, laciniis breviovatis ;
capsulis subglobosis.—On various sierras of Pimeria Alta, Sonora; Schott. Leaves all in a
radical cluster, 21—3 inches long and about half an inch wide, thick, much dilated at the base ;
the margin below the middle furnished with minute but evident cartilaginous teeth, while on

the upper half the margin bears rather stout white threads ; the spiny tip is not more than 2-3

lines long. Scape 4-5 feet long ; the clusters of flowers more scattered than in the last species.
Only the withered persistent flowers were collected. "These when soaked were scarcely half an
inch long and whitish with a tinge of rose-color. Stamens and style exserted. Capsule 4—5
lines long and of nearly the same diameter. Seeds as in the last species. This is possibly A.
filifera, Salm- Dyck, a species of which the flowers and fruit are not described.

AGAVE VIRGINICA, Linn.; Micha. Fl. 1, p. 187; Kunth, Enum. 5, p. 833. Hills on the Rio
Grande from El Paso down to Laredo, April—August. (No. 683 and 1905, Wright.)

I subjoin a description, by Dr. Engelmann, of a species of Agave found at Eagle Pass on the
Rio Grande, (probably collected by Mr. Schott.) of which there are no specimens in the col-
lections :

AGAVE MACULATA (Engelm. ): radice crassa cylindrica nigra ; foliis radicalibus lanceolato-
linearibus longe acuminatis subtus convexis supra profunde concavis recurvatis glaucis maculis
atro-virentibus notatis, margine albido cartilagineo-dentatis apice acutis nec spinescentibus ;
scapo basi foliis paucis instructo ; floribus in spicam simplicem dispositis brevissime pedicellatis ;
tubo corollz superne vix smplisto, laciniis lineari-oblongis rotato-patentibus.—Eagle Pass on

BOTANY. 215

the Rio Grande. Root 6-8 lines in diameter, 4-6 inches long, black, with long thick white
fibres. Leaves 4-6 inches long, 4 an inch wide, deeply channelled, but not carinate, very
glaucous, the dark greenish brown blotches more distinct on the upper than the lower surface.
Scape 11-2 feet high. Spike about 6 inches long, with 12-15 flowers. Bracts subulate, longer
than the pedicel, which is about one line long and articulated in the middle. The flowers,
which are of musky not disagreeable odor, are about 20" long; ovary 6”, tube 9", the limb about
6". Laciniæ of the perianth at first green, afterwards on both sides (with the filaments) of a
dirty purplish color Evidently near A. revoluta, Klotzsch; but that species has smooth-mar-
gined leaves ; limb of the perianth equal to the tube ; stamens free in the tube and longer than
the limb. To Polyanthes Mexicana, Zucc. (which Kunth in Enum. 5, p. 847, says, is probably
a species of Agave) it is still more nearly related, but that has leaves entire on the margin,
with reddish dots ; flowers white, in pairs and sessile, the tube 18 lines long, segments only
3-4 lines long. Capsule (immature) ovate-oblong obtusely triangular. Nothing is said of the
fragrance of the flowers. s

BROMELIACE.E.

TILLANDSIA RECURVATA ( Linn.; Le Conte in Ann. Lyc. N. York, 2, p. 132): ceespitosa ; foliis
subdistichis filiformibus teretibus anguste canaliculatis cinereo-lepidotis recurvatis; pedunculis
folio longioribus unifloris glabriusculis ; bracteis 2-3 acuminatis calyce longioribus.—On trees,
near the Rio Coleto, Texas; Thurber. On oaks and grape vines, Los Moros; Bigelow. Lower
Rio Grande; Schott. San Fernando, Mexico; Berlandier, No. 818. The specimens are all in
fruit, and the peduncles mostly one-flowered. ۱

TILLANDSIA USNEOIDES, Linn.; Ell. Sh. 1, p. 379 ; Le Conte, l. c. On trees, western Texas, not
found on the Rio Grande above the mouth of the Pecos.

DASYLIRION TENUIFOLIUM (n. sp.): caudice brevissimo; foliis linearibus gramineis planis vix
rigidulis nitidis margine spinuloso-scaberrimis ; panicula elongata, ramis simplicibus distantibus
sublaxifloris, basi subnudis ; pedicellis flore sublongioribus ; fructibus membranaceis, lobis
carinatis vix alatis; seminibus oblongo-obovatis. Among rocks, borders of the Sabinal river ;
Wright, (No. 1919.) Stony places on the high plateau of the upper Guadalupe, Texas; Lind-
heimer. Caudex short and almost subterranean. Radical leaves about a foot long, 2-21 lines
wide, bright green and shining on both sides, much thinner in texture than in any other species
of this genus, those of the scape gradually smaller. Stem or scape (including the panicle) about
3 feet high. Branches of the panicle 2-3 inches long. Flowers solitary or somewhat fascicu-
late. Perianth scarcely a line and a half in diameter. Ovary 3-celled, with 2 erect ovules in
each cell; stigmas 3, oblong, sessile. Fruit rather broader than long, 3-lobed, one or two of the
seeds commonly abortive. Seed minutely reticulate-rugose. Remarkable for the thin leaves
and long naked panicle.

DASYLIRION GRAMINIFOLIUM, Zucc. Pl. Nov. v. Min. Cog. fasc. 4, p. 225, t. 1. Hill sides and
table land, western Texas, New Mexico, Chihuahua, and Sonora, westward to the Colorado.
Neuvo Leon; Berlandier, (No. 3211. No. 694, Wright. No. 70, 212, 212, 419, and 549,
Fendler.) Caudex 3-5 feet high, the upper part clothed with the long spiny-serrated recurved
leaves. Scape 6-8 feet high. Flowers in a long dense panicle of close spikes, which are sub-
tended by broadly lanceolate clasping foliaceous spathes. The male flowers with a sterile
ovary, and the female with sterile anthers. Bracts and bracteoles broadly ovate, acuminate

216 UNITED STATES AND MEXICAN BOUNDARY.

serrate-lacerate, scarious. Perianth white; the segments obovate, concave. Ovary ovate,
obtusely triangular, one-celled, with 6 anatropous erect ovules at the base of the cavity. Fruit
coriaceous, narrowly winged, indehiscent. Seed 3-sided, with obtuse angles, smooth. Embryo
cylindrical, in the axis of horny albumen, which it nearly equals in length. D. Texanum
Scheele, seems to be hardly distinct from this species.

DASYLIRION 8168:0111, Torr. Bot. Whipp. Rep. p. 151. Sierra del Tule y Tinaja Alta, Sonora;
Schott. ‘‘Stem 6 feet high, and 2-3 feet in diameter." Leaves 3-5 feet long, and nearly an
inch in diameter about the middle, flat; the margin a little rough, and sometimes separating
into threads. ‘‘ Scape 6-8 feet long. Raceme 1-14 foot long, and nearly a foot in diameter at
the base." Fruit papyraceous, 1 or 2 of the cells usually sterile, not opening by regular
dehiscence, but by the rupture of the thin walls. Seeds oblong-obovate, whitish, dull, slightly
reticulated. Embryo slender, cylindrical, in the axis of horny albumen.

DASYLIRION LINDHEIMERIANUM, Scheele in Linnea, 25, p. 362. High plains and hill sides near
the Copper Mines, New Mexico; Bigelow. El Podrero, Sonora; Schott. (No. 693, Wright,
No. 213, 297, 551, 552, Lindheimer.)—2A]l our specimens are in fruit. Leaves a yard long, and
about 3 lines wide towards the base, channelled above, rounded underneath. Pedicels filiform,
thickened and triangular at the base of the flower. Fruit membranaceous, nearly twice as
broad as long, and exceeding the pedicels in length, conspicuously 3-winged, only one of the
cells usually fertile, and this containing but a single obovate seed.—This species seems to be
very like D. Hartwegianum, Kunth. D. Bigelovii, which it also resembles, differs in its much
larger fruit, broader leaves, and short pedicels.

DASYLIRION ERUMPENS (n. sp.): foliis lineari-ensiformibus e basi non attenuatis superne
angusto-filiformibus supra canaliculatis infra semiteretibus margine serrulato-scabris ; spathis
e basi lata longissime angustissimeque attenuatis; pedicellis vix flore equalibus; fructibus
trilobis trilocularibus lobis carinatis vix alatis; seminibus globosis. Hills and gravelly places,
western Texas and New Mexico, June. (No. 1918, Wright.) Leaves 24-3 feet long, about 3
lines wide toward the base, tapering to a long, almost filiform extremity, rigid; the margin
rough, with minute cartilaginous serratures. Panicle compound ; the spathaceous bract at the
base of each primary branch dilated and clasping below, then tapering to a long filiform point.
Pedicels jointed near the middle. Flowers white, about 2 lines long, the male (as usual)
bearing imperfect anthers, and the female an infertile ovary. Capsule with one or two of the
cells often without seeds, the angles prominent and acute, but not winged. Seeds when near
maturity, bursting the pod, and then remaining for some time attached to the placenta.

IRIDACEAE.

IRIS MACROSIPHON, Torr. Bot. Whip. Rep. p. 144. Near San Francisco, and in Napa county,
California, March ; Thurber.

SISYRINCHIUM BERMUDIANA, Linn. ; var. MUCRONATUM. San Diego, California, May ; Thurber.
Western Texas ; common along the Rio Grande ; also in New Mexico, near the Copper Mines.
S. minus, Engelm. & Gray, (Pl. Lindh., No. 313,) can hardly be considered a distinct species
from this, as intermediate forms not unfrequently occur.

Nemastyuis acuta, Engelm. & Gray, Pl. Lindh. 1, p. 27 (adnot.) N. geminiflora, Nutt. in
Trans. Amer. Phil. Soc. (n. ser.) 5, p. 157. Ixia acuta, Bart. Fl. N. Am. 1, t. 76. Western
Texas, Thurber. Mountains of Muerte; Bigelow.

TRIFURCIA CXRULEA, Herb. in Bot. Mag. sub t. 3779. Prairies of the Colorado, Texas; Wright.

BOTANY. 217
SMILACEA.

SMILAX TAMNOIDES, Linn. sp. p. 1460. Piedra Pinta, western Texas (in fruit) ; Bigelow. An
extremely variable species, of which S. Bona nox, S. hastata and S. pandurata are doubtless
mere varieties, My friend, Dr. Chapman, who has carefully studied, in a living state, the
Florida species of this genus, thinks that S. Beyrichii, S. Sprengelii and S. hederefolia of
Kunth are also forms of S. tamnoides.

TRILLIUM SESSILE, Linn. Spec. p. 284, var. ANGUSTIPETALUM, Torr. Bot. Whippl. Rep. p. 151.
Moist places near Monterey and San Luis Obispo, California, March—April; Parry. Napa
county, in the same State; Thurber.

LILIACEJE.

FnrTILLARIA LANCEOLATA, Pursh, Fl. 1, p. 230. F. mutica, Lindl. Bot. Heg. fol. 1663? (Tas.
LXI.) In pine woods near Monterey, California, February—April; Parry; also in Napa
county; Thurber. The leaves of Dr. Parry's specimens are unusually narrow.

FRrrLLARIA KawrscHATCENSIS, Fisch. in Hook. Fl. Bor.-Am. 2, p. 181, t. 193, A. San Lusi
Rey and San Luis Obispo, California; Parry.

CALOCHORTUS UNIFLORUS, Hook. & Arn. Bot. Beech. p. 398, t. 94. Monterey, California, May ;
Parry.

CALOCHORTUS VENUSTUS, Benth. in Hort. Trans. (n. ser.) l, p. 411, t. 15, f. 3. Monterey,
California, May ; Parry. Near the Copper Mines, New Mexico, May—June; Bigelow. San
Luis mountains, Sonora; Capt. E. K. Smith.

CarocHoRTUS LUTEUS, Dougl.; Lindl. Bot. Reg. t. 1661. San Diego, California, May ; Parry.

CALOCHORTUS SPLENDENS, Benth. l. c. p. 411, t. 15, f. 1. San Diego, California, May—June ;
Parry, Thurber.

CvcLoBoTHRA ALBA, Benth. l. c. p. 413, t. 14, f. 3. Monterey, California, May ; Parry.

ALLIUM CERNUUM, Roth; Bot. Mag. 1. 1134; Kunth, Enum. 4, p. 435. Hills near the Copper
Mines, New Mexico, July; Bigelow. (No. 1913, Wright. No. 848. Fendler.)

ALLIUM RETICULATUM, Nuti. in Fraser, Cat. ; Hook. Fl. Bor.-Am. 2, p. 184, t. 195 ; Kunth, ۰
Hill sides and prairies. Western Texas to the Rio Grande and Chihuahua ; also in New Mexico
west to the Copper Mines, April. (No. 1915 and 1916, Wright.) :

ALLIUM MUTABILE, Michæ. Fl. 1, p. 195 ; Kunth, Enum. 4, p. 451. Gravelly hills, western
Texas; Wright. Presidio del Norte on the Rio Grande, and in other places on that river ;
Bigelow. Chihuahua; Thurber. The bulb is commonly single, ovate, and 1-14 inch long.
Leaves narrowly linear, shorter than the scape, which is about a foot long. Umbel 15-40-
flowered. Spathe 2-3-valved. Perianth rose color, sometimes very pale; the segments ovate-
lanceolate, acute. Stamens about two thirds the length of the perianth ; filaments subulate,
gradually and moderately dilated downward; anthers oblong. Cells of the ovary 2-ovulate.
Capsule subglobose, 3-lobed ; the cells rounded at the summit, usually perfecting but a single
ovate black seed. |

ALLIUM ACUMINATUM, Hook. Fl. Bor.-Am. 2, p. 185, t. 196. San Diego, near the boundary
line; Parry. New Almaden, California; Thurber.

ALLIUM (HresPEROscoRDIUM) MARITIMUM, Torr. Bot. Whippl. Rep. p. 149; Benth. Pl. Hartw,
p. 339. Sandy places near Monterey, California, March; Parry.

28 k

218 UNITED STATES AND MEXICAN BOUNDARY。

ALLIUM (NorHoscoRDIUM) STRIATUM, Jacq.; Bot. Mag. t. 1035; Ell. Sk. 1, p. 385. Prairies
of western Texas and along the Rio Grande; common; flowering from March to September.
Janos, Coralitas river, Sonora; Capt. E. K. Smith.

Sub-genus Curysoscorpium. Sepala basi vix connata, erecto-patentia, uninervia. Filamenta
filiformia, basi utrinque unidentata. Ovarium sessile: ovula in loculis 4-5. Herba Californica
scapigera, bulbosa? ; foliis linearibus ; floribus umbellatis aurantiacis.

ALLIUM (OH.) CROCEUM (n. sp.) Summit of the mountains east of San Diego, California ;
Parry. Leaves all radical, about a foot long and 23 lines wide, glabrous. Scape as long as the
leaves, slender, terete, naked. Umbel 9—12-flowered ; the pedicels 8-10 lines long, spreading,
articulated close to the flower. Spathe of 4—5 lanceolate acuminate valves, which are nearly
distinct to the base. Sepals 44 lines long, orange-yellow, oblong, rather obtuse, with a ciliolate
callosity at the tip. Stamens one fourth shorter than the sepals; filaments filiform, with an
oblong adnate tooth on each side at the base. Ovary oblong ; style about as long as the sepals,
filiform ; stigma very small, 3-lobed. Capsule (immature) obovate ; seeds compressed. This
species resembles a small Calliproa lutea. It differs from most of the genuine species of Allium
in its yellow flowers, more numerous ovules, and articulated pedicels.

CAMASSIA FRASERI, Torr. in Bot. Whippl. Rep. p. 147. Scilla esculenta, Ker. 8. Fraseri,
Gray, Man. ed. 2, p. 469. Prairies of western Texas; Wright.

Broprza (DICHELOSTEMMA) CAPITATA, Benth. Pl. Hartw. p. 339. Dichelostemma congestum,
Torr. Bot. Whippl. Rep. non Kunth. Near Monterey, California, Parry; and Napa valley, in
the same State ; Thurber. Until very recently, I had never seen the true B. congesta ; all the
numerous specimens of what I have taken for it having 6 perfect stamens. As an early figure
of Hookeria pulchella, Salisb., which several botanists have referred to B. congesta, represented
the flowers as hexandrous, I supposed that the fertile stamens were commonly 6. I have,
however, just examined a Brodica from Oregon, which exactly accords with Smith's description
of B. congesta. Nevertheless it is possible that the usually abortive stamens are sometimes
antheriferous.

Var.? PAUCIFLORA: umbella 2-4-flora ; pedicellis valde ineequalibus partim spatha 3-4-8
subduplo longioribus. Near the Copper Mines, New Mexico; Bigelow. On the Gila river,
March; Parry. San Francisco Spring, Sonora, Capt. E. K. Smith. This may prove a distinct
species ; for we have seen no intermediate forms.

BRODLEA GRANDIFLORA, Smith, l. c.; Kunth. Enum. 4, p. 471; 0 var. MACROPODA, Torr. Bot.
Whippl. Rep. p. 149. San Pasqual, California, May; Thurber.

CALLIPROA LUTEA, Lindl. Bot. Reg. t. 1590; Kunth, Enum. 4, p. 476. Dry grassy hill sides,
near Monterey, California, May ; Parry.

CHLOROGALUM POMERIDIANUM, Kunth, Enum. 4, p. 682. Anthericum pomeridianum, Gawl. Bot.
Reg. t. 561. (Tas. LX.) Pinasquitos, California, May ; Thurber.

ANDROSTEPHIUM, Nov. Gen.

Perianthium corollaceum, infundibuliforme, 6-fidum, regulare, persistens ; laciniis tubo sube-
qualibus patulis uninerviis. Stamina 6, omnia fertilia; filamentis superne in tubum brevem
cylindraceum connatis, inter et ultra antheras biloculares introrsas dorso medium affixas in
coronam 6-foliolatum productis. Ovarium sessile, oblongum, 3-loculare; loculis 12-H-ovulatis:

BOTANY. 219

stylus filiformis, stamina equans; stigma capitato-trilobum. Capsula late-obovata, truncata,
3-loba, lobis compressis. Semina in loculis 8-14, verticalia, compresa, biseriata, nigra. 04
bulboso-tuberosa. Folia omnia radicalia, linearia, semi-cylindrica. Flores in apice scapi
umbellati, pedicellati, violacei, bracteis 3-4 involucrati ; pedicellis inarticulatis.

/ANDROSTEPHIUM VIOLACEUM.—Hills and prairies on the rivers Blanco and Colorado, Texas,
March و‎ Wright. We have excellent specimens from Dr. R. Gleason, United States army,
collected near Fort Arbuckle; and it occurs in Lindheimer's Texan collection fasc. IV. Leaves
6-8 inches long and 1-2 lines wide, arising from a small coated bulb which surmounts a depressed
globose bulb or corm. Scape about as long as the leaves, rather stout, bearing at the summit
an umbel of 2-7 flowers, which have a faint sweet odor. Bracts scarious, lanceolate, acuminate,
3-nerved. Pedicels rather shorter than the flower. Perianth nearly an inch long, 6-cleft nearly
to the middle, the segments more or less spreading, oblong, obtuse. Stamens 6, the free portion
of the filaments united into a tube which arises from the orifice of the perianth is conspieuously
exserted, and produced between and beyond the anthers into a crown of 6 oblong emarginate
lobes. Anthers linear-oblong, notched at each end. Style about as long as the stamens. Ovary
entirely free from the base of the perianth. Capsule sessile, with 3 very prominent laterally
compressed lobes or cells, which open loculicidally. Seed suborbicular, laterally much com-
pressed and narrowly winged, vertically imbricated in a double series. Embryo slender,
cylindrical, a little curved in the axis of fleshy albumen. The Mexican genus Bessera most
resembles this, but it differs in the very short tube of the perianth, in the tube of filaments having
only a short tooth between the filaments, and in the form of the capsule.

MILLA BIFLORA, Cav. Ic. 2, p. 76, t. 196, ex Kunth, Enum. 4, p. 478. M. cerulea, Scheele in
Linnea, 25, p. 260. On the Rio San Pedro, Sonora; Schott, Thurber. No. 1913, Wright.
Scape 1—3-flowered. Bulb subglobose, clothed with light brown scales. Our plant wholly
resembles Mexican specimens collected by Dr. Halsted and others. ۱

ECHEANDIA TERNIFLORA, Ortega; Kunth, Enum. 4, p. 627. Var.? ANGUSTIFOLIA: foliis 2-4 lin.
latis, pedicellis infra medium articulatis; ovarii loculis sub-16-ovulatis. Copper Mines, New
Mexico ; rocky places near the mouth of the Pecos, and near Rock Creek, July—August; Bigelow;
(No. 69 and 1912, Wright.) Cretaceous hills and ravines near the Pecos; Schott. Monterey,
Mexico; Dr. Edwards. New Mexico, Fendler, No. 851. Root a fascicle of thick fleshy fibres.
Leaves usually less than 3 lines wide. Stem scapiform, 11-3 feet long, very slender, often nearly
simple above, but more commonly somewhat paniculately branched, the branches erect. Flowers
2-4 or more together in fascicles; the terminal ones racemose and mostly solitary. Pedicels
jointed about one-third their length from the base. The expanded perianth about three-fourths
of an inch in diameter, orange-yellow ; segments narrowly oblong, with closely approximated
nerves along the middle. Stamens scarcely half the length of the perianth; filaments roughened
with short, obtuse, somewhat retorse teeth; anthers linear-oblong. Ovary obovate, the cells
with about 16 anatropous ovules in a double series; style one-third longer than the stamens,
filiform ; stigma minutely 3-lobed, ciliolate-papillose. Capsule oblong-obovate, obtuse, 3-lobed,
thin. Seeds angular, black. E. terniflora differs from our plant in the leaves being 6-7 lines.
wide, the pedicels jointed in the middle and the more numerous ovules (23-24 in each cell of
the ovary.)

220 UNITED STATES AND MEXICAN BOUNDARY.
SCHOZNOLIRION, Nov. Gen.

Perianthium corollaceum, سوه‎ persistens ; sepala 3-5-nervia, patentia. Stamina 6,
imee basi sepalorum inserta; filamenta subulata basi complanata ; antheræ oblonge, utrinque
bifide, introrsae. Ovarium liberum, ovali-globosum, subsessile, 3-loculare; ovula in loculis 2,
collateralia, horizontalia, anatropa; stylus filiformis, rectus; stigma minutum, 3-lobum. Capsula
globoso-obovata, 3-loba; loculis 1—2-spermis. Semina subglobosa nigra nitida.—Herbe pe-
rennes; rhizomate bulboso-tuberosa; foliis subradicalibus angusto-linearibus subcanaliculatis ;
scapo gracili ; floribus albis in racemis simplicibus vel laxe paniculatis; pedicellis juxta florem
articulatis basi bracteatis.

SCHGNOLIRION MicHAUXII: pedicellis bracteis 2-4-plo longioribus; sepalis ovatis, nervis şub-
distantibus.—Phalangium croceum, Micha. Fl. 1, p. 196. Ornithogalum? croceum, EU. Sk.
1, p. 397; Kunth, Enum. 4, p. 911. O. Texanum, Scheele in Linnea, p. 146. Moist places on
the Colorado of Texas, March— April ; Wright. Also found on the Red River of Louisiana, by
Dr. Hale, and in East Florida by Mr. Buckley and Dr. Chapman. Rhizoma oblong or some-
times elongated, about as thick as the little finger, crowned with a scaly bud or bulb. Leaves
1-11 foot long, narrowly linear, glabrous, somewhat channelled above, and rounded underneath.
Scape 14-3 feet high, terete, slender, simple, or with a few branches above. Racemes 8-25-flow-
ered, the pedicels 5-8-lines long, somewhat spreading, with short bracts at the base. Perianth,
when expanded, 4-5 lines in diameter, spreading, white, the 3 exterior sepals greenish externally
along the middle. Stamens a little shorter than the perianth ; filaments white. Capsule coriaceous,

somewhat truncate, with 3 rounded lobes ; cells 1-2-seeded, one or two of them abortive. Seeds

globose-obovate, black and shining. Embryo straight in the axis of fleshy albumen. The
flowers of this species are yellowish when dry; a circumstance which doubtless gave rise to the
specific name of Michaux, but which had best be superseded, as it may lead to error. S. album,
Durand, differs in its pedicels being much shorter than the subulate bracts; in the oval sepals
which are narrowed towards the base, and in the almost confluent nerves. The perianth is also
of much more delicate texture than in S. Michauxii, and dries white. This genus was indicated
in Durand's account of a collection of California plants made by Mr. H. Pratten and published
in the Journal of the Academy of Philadelphia (n. ser. vol. 2.) It is much more nearly related
to Ornithogalum than to Phalangium.

SMILACINA STELLATA, Desf. in Ann. Mus. 9, p. 51. Near the Copper Mines, New Mexico ;
Bigelow. Moist places near Monterey, California, April; Parry. The raceme is looser, and
the pedicels considerably longer than in the eastern plants.

SMILACINA RACEMOSA, Desf. l.c. Mountains on the Mimbres, April—May ; Bigelow, Thurber.
California; Parry. The branches of the panicle are shorter and fewer-flowered, both in
the California specimens and in those of New Mexico, than in the plant of the Eastern States.

PorraoxATUM BIFLORUM, Ell, Sk. 1, p. 393? Copper Mines, New Mexico, June; Bigelow.
(No. 1917, Wright.) Whole plant quite smooth. Stem about a foot and a half high. Leaves
narrowly oblong, glaucous underneath. Peduncles 2-flowered. Filaments very slightly rough,
العو‎ below the middle of the tube of the perianth,

UsTrFOLIA, Pursh, Fl. 1, p. 227; Nutt. Gen. 1, p. 218. Sandy hills and plains, New
Maxon, Western Texas and Chihuahua, May—August. (No. 910 and 911, Wright ; No. 850
of Fendler's New Mexican collection. )

BOTANY. 221

Yucca? PARVIFLORA (n. sp.): subacaulis ; foliis anguste-linearibus liculatis rigidis recurvatis
margine filamentosis ; pedunculis scapiformibus subpaniculatis ; bracteis e basi dilatatis promisse
acuminatis; pedicellis fasciculatis; sepalis linearibus subconniventibus; stylus filiformibus,
stigmate integro truncato. Gravelly hills near the mouth of the Pecos; Bigelow. Stony hills
west of the Nueces, Texas; Wright, (No. 1908). Caudex apparently very short. Leaves 12-
18 inches long, 4—5 lines wide, conduplicate when dry, very smooth, acute at the tip, but not
pungent ; the filaments on the margin 1-2 inches long and about as thick as common sewing-
thread. Scape 3-4 feet long, with distant clasping bracts ; the upper part racemose and some-
what branching. Pedicels 3-4 together, 6-10 lines long, arising from the axis of a clasping
bract, erect, a little thickened upward and articulated close to the flower. Perianth white? the
divisions about three-fourths of an inch long, scarcely 2 lines wide, rather obtuse, scarcely |
united at the base. Stamens 6, shorter than the perianth ; anthers oblong; bifid at the base.
Ovary oblong, 3-celled ; the cells with numerous horizontal ovules; style a little exserted,
filiform, triangular and a little enlarged toward the extremity. This differs from all the other
species of the genus in its elongated filiform style and narrow sepals. The fruit of Mr. Wright's
specimens in Dr. Gray’s herbarium is unripe. It is subglobose, and about an inch in diameter.
As Mr. Wright likens it to a fig, it is doubtless fleshy.

Yucca PUBERULA, Haw. in Phil. Mag. March 1828, ex Kunth. Enum: 4, p. 212. Y. brevifolia,
A Schott, MSS. Valley of the Santa Cruz river, and Sierra del Pajarito, near the monument,
Sonora, J une ; Schott. Stems 6-8 feet high. Leaves mostly in a terminal crown, about a foot
long and 5-6 fadá wide, concave above, a little rounded underneath, of a thick and firm texture,
with a few loose threads on the margin, the apex armed with a spine. The persistent retrorsely
imbricated vestiges of former leaves give the stem a very rough appearance. Scape 2-3 feet
long, paniculate above, pubescent. Bracts at the base of the branches lanceolate, tapering to
a long point. Flowers apparently white. Sepals broadly elliptical 14 inch long, rather acute.
Fruit about 24 inches long, and 1} in diameter, pointed with the base of the styles. ‘‘ This is
the Sotol of the Sonorians, but not of the Texans along the Rio Grande. It bears large fleshy
fruits which are edible, and called Datili, probably on account of their shape.’’—Schott.

Yucca RUPICOLA, Scheele in Linnea, 23, p. 143. Y. tortifolia, Lindh. MSS. Gravelly hills and
plains, western Texas, New Mexico, and Chihuahua, April-May. (No. 688, 689, and 1,909,
Wright. No. 709, Fasc. IV, Lindheimer.) Fruit an inch and a half long, dry or nawy 80, often
remarkably constricted near the middle.

Yucca BACCATA (n. sp.) : foliis lanceolatis planis crebris margine filamentiferis apice convolutis,
spina terminali brevi ; floribus campanulatis; fructibus racemosis cernuis ovatis baccatis. Parras,
Cohahuila; Thurber. High table lands between the Rio Grande and the Gila; Major Emory.
This is the same species that is noticed in the Botany of Whipple's Report as having been found
at Hurrah Creek, New Mexico, by Dr. Bigelow. According to Dr. Bigelow it is a low species,
with a subterranean caudex. We have no information as to the length of the scape. The
flowers appear to form a racemose panicle. "They are larger than in any other species of Yucca
here noticed ; the sepals being 23-3 inches long, tapering to each end and 6-7 lines wide in the
middle. The fruit is the size of a large fig, with a sweet edible pulp. Near Monterey, Cali-
fornia, Dr. Parry collected the leaves of a yucca resembling those of this species, except in
being smaller. On the plains of western Texas, near the Limpio, and in the vicinity of Presidio
del Norte, Dr. Bigelow found a yucca 10-15 feet high, with leaves almost exactly like those of

222 UNITED STATES AND MEXICAN BOUNDARY.

Y. baccata, but the fruit is longer, though not greater in diameter, and the pulp is thicker. It
may, till better known, be regarded as a variety (macrocarpa) of that species. We have from
Mr. Thurber the leaves and a portion of the fruit of a yucca which he collected near Parras, in
Cohahuila, where it covers the table lands. It is a tree sometimes twenty-five feet or more in
height, with several spreading branches. The leaves are about 15 inches long, and from an inch
to an inch and a half wide, flat, terminating in a spiny point, and the margin filamentous. The
` fruit is two or three inches long, and has a thin sweet pulp. The seeds are thick and black.
A figure of the plant is given in Bartlett's narrative, vol. 2, p. 491. Our specimens are hardly
sufficient for determining whether it is a described species. . It may not be distinct from the
yucca found by Dr. Bigelow. Mr. Schott, in his notes, states that on the upper Rio Grande
he saw a yucca, bearing edible fruits, with a stem 18 inches in diameter. The trunks have been
used in Mexico as palisades in the construction of stockades. Besides the above species, there
are two or three others in the collections, which I have not been able to determine satisfactorily
for want of sufficient materials. One is a yucca found by Mr. Schott on rocks near San Pasqual,
southern California. It is the same that is doubtfully referred to Y. aloifolia in the Botany of
Whipple's Report, (excluding the synon. and No. 1909, Wright.) The caudex is 1-2 feet high,
and the scape 2-3 feet. The leaves are 18 inches or more in length, channelled on the upper
side, rounded or obtusely angular underneath, and slightly serrulate-scabrous on the margin ;
the apex convolute and spiniferous. The flowers (as represented in a sketch) are in a spreading
panicle. Capsule coriaceous, obovate, and somewhat truncate, 3-lobed, an inch and a quarter
long and of nearly the same breadth. Seeds semiorbicular, thin and flat. If it prove to be a
distinct species it may be called Y. Whipplei. The late Dr. Gregg found between Parras and
Cerralbo a yucca between 20 and 30 feet in height; but his specimens are too imperfect for
comparison.
MELANTHACE.JE.

ANTICLEA Fremont, Torr. in Bot. Whippl. Report, p. 144. Fields around San Diego, Ca li
fornia; Parry.

XEROPHYLLUM TENAX, Nuit. Gen. 1, p. 235, Gray, Melanth. in Ann. Lyc. N. York, 4, p. 129.
Helonias tenax, Pursh, Fl. 1, p. 243, p. 9. Dry hills near the seacoast, Monterey, California,
May; Parry.

SCHENOCAULON 10873131011211 Gray, in Bot Beech. p. 388, adn. S. TEXANUM, Scheele in Linnea,
25, p. 262. Near Yorktown, on the Lower Rio Grande, Texas, April—October ; Schott. This
species was first discovered by Drummond, and is No. 284 of his third Texan collection. It was
afterwards found by Dr. Riddell and Mr. Lindheimer. The filaments are dilated upward and

not downward, as stated by Scheele 1. c.
JUNCACEJE.

Juncus Bauricus, Willd. in Berl. Mag. 1809, p. 298, ex Kunth, Enum. 3, p. 316. Sandy moist —
places, western Texas, New Mexico, Sonora and California, June ; (No. 1920 and 1921, Wright.)

JUNCUS DEBILIS, Gray, Manual, ed 2, p. 480. J. polycephalus, var.? depauperatus, Torr. Fl.
N. York. 2, p. 328. Wet places along the Limpio, July; Bigelow. Arroyo de los Janos,
Sonora; Schott. (No. 1925, Wright.) eta

[US XIPHOIDES, 0. A. Meg. in Relig. Haenk. 2, p. 143, ea Kunth, Enum. 3, p. 331. Near
Monterey, Ca. a, May; Pari. Po near J. Menziesii 6. Californicus, Hook. & Arn. Bot.
Beech, p. 402.

BOTANY. . 223

Juncus ARTICULATUS, Linn.; Gray, l. c. J. lamprocarpus, Ehrk. Near the Copper Mines, New
Mexico, June; Bigelow. Var. CRASSIFOLIUS : foliis crassis compressis vix articulatis. Sonora ;
Schott. Var. MULTIFLORUS : capitulis paucis 20—30- floris. Fronteras, Sonora; Thurber.

Juncus Noposus, Linn. ; Gray, l. c. Laredo, on the Lower Rio Grande, June; Schott. Var.
MEGACEPHALUS, Torr. ۰ N York, 2, p. 327. San Elceario on the middle Rio iced: ; Bigelow.
Along the Gila, Sonora ; Thurber, Schott.

Juncus TENUIS, Willd. sp. 2, p. 214 ; Torr. Fl. N. York, 2, p. 327. Hills at the Copper Mines,
New Mexico ; Thurber. |

JUNCUS MARGINATUS, Rostk. Junc. p. 38, t. 2, f. 3. Western Texas; Wright. (No. 1923 in
part.

JUNCUS LONGISTYLIS (n. sp.): culmo erecto simplici compresso foliato ; foliis planis gramineis ;
capitulis paucis 4—6-floris in panicula sub-simplici dispositis; sepalis lanceolatis mucronatis
capsula obovato-oblongo obtusa mucronata paullo longioribus ; seminibus oblongis utrinque
acutis ecaudatis. Near the Copper Mines, New Mexico, June; Bigelow. (No. 1924, Wright.)
Culms from a rather stout root-stock, 12-18 inches high, slender, distinctly compressed. Leaves
flaccid, 1-14 line wide, obscurely nerved ; the radical ones 6-8 inches long, those of the culm
(2-3 in number) shorter. Heads 4-8 in a contracted or oblong panicle, the bracts at the base
ovate, scarious, about as long as the sepals. Stamens 6. Style more than half as long as the
ovary. Capsule usually about one-fifth shorter than the sepals. A very distinct species. J.
marginatus, to which it is nearest related, differs in the usually much more numerous heads,
triandrous flowers, short style, obtuse inner sepals and subglobose capsule. No. 857 of Fend-
ler’s New Mexican collection seems to be a variety of this species, with only two or three closely
approximated heads.

JUNCUS BUFONIUS, Linn. Sp. p. 466; Kunth, Enum. 3, p. 353. Moist places, Sonora and
California ; Thurber.

LuzuLA campestris, DC.; Torr. Bot. Whippl. Rep. p. 143. Pine woods near Monterey, Cali-
fornia, May ; Parry.

PONTEDERIACEEX.

HETERANTHERA LIMOSA, Vahl, Enum. 2, p. 44; Pursh, Fl. 1, p. 32; Kunth, Enum. 4, p. 122.
Wet places along the Limpio, and at the Copper Mines ; also in Sonora; flowering through the
summer and autumn. (No. 1927, Wright.)

SCHOLLERA GRAMINIFOLIA, Willd. Heteranthera graminea, Vahl, l. c.; Torr. Fl. N. York, 2,
p. 9313, 2. 133. Near Matamoras, in Tamaulipas, on the lower Rio Grande; May ; Schott. The
specimens appear to have grown in very shallow water, or on muddy ground. The stems are
scarcely an inch long, and the leaves are only about twice that length.

HYDROCHARIDACEA.

LiwNoBIUM SPONGIA, Rich. in Mem. Instit. 2, p. 66, t. 8. Hydrocharis spongiosa, Bosc. Near
San Antonio, Texas ; Schott.

COMMELYNACE.
` Commetyna VIRGINICA, Linn. Sp. p. 61; Gray, Man. ed. 2, p. 486. C. angustifolia Miche. Fl.
1, p. 24. Moist thickets and borders of rivers. Western Texas, New Mexico, and Chihuahua;
flowering throughout the season.

204 UNITED STATES AND MEXICAN BOUNDARY.

B.? LATIFOLIA : foliis ovatis tenuibus basi obtusis summis cordatis glabris, vaginis ore ciliatis ;
spatha subtriflora brevi rostrata basi subturbinata.—Shady alluvions of the lower Rio Grande,
September ; Schott. Stem branching, (only the upper part seen,) glabrous. Leaves very thin,
2-3 inches long, 1-14 inch wide, acute. Flowers only 2 and sometimes a rudiment in one
spatha. Sepals and petals nearly as in C. Virginica, but the latter, Mr. Schott says, are white.
We need more specimens, in order to determine whether the plant is a distinct species.

COMMELYNA LINEARIS, (Benth. Pl. Hartw. p. 2'1, var. LONGISPATHA :) caule erecto-subramoso ;
foliis lanceolato-linearibus complicatis, margine scabro ; spatha terminali complicata longissime
rostrato-attenuata ; pedunculis geminis, incluso 8-10-floro, exserto 1—2-floro ; petalo impari
sessili lateralibus paullo breviore.—Near the Copper Mines, New Mexico, August; Bigelow.
(No. 700, (in part) 1923 and 1930, Wright. No. 864, Fendler.) Stem 1-2 feet high, with
short axillary branches. Leaves 4-6 inches long, and about a quarter of an inch wide, tapering
at each end, slightly pubescent; the sheaths a little swollen, fringed at the orifice. Spatha
pedunculate, cordate, not at all turbinate at the base; the narrow tapering somewhat recurved
point 1-2 inches long; peduncles of the spatha hispidly pubescent, the terminal one much
exserted. 111867160 flowering peduncle about an inch long. Exterior sepal ovate, acute,
carinate ; the two lateral sepals united above the middle, obtuse. Petals bright blue, the
lateral ones unguiculate, the odd one about one-third smaller and sessile. Stamens 6; filaments
all glabrous ; 3 of the anthers abortive and cruciform; the others fertile, oblong, one of them
larger and curved. Style long and slender, a little incurved toward the summit. Capsule
oblong, one of the cells usually abortive, the other cells 2-seeded. Seeds oblong or roundish,
corrugated. A well characterized species, remarkable for the long attenuated apex of the
spatha. I first received it from Lieutenant Abert, of the United States army, who collected it
on the Pecos river. 1

TRADESCANTIA VIRGINICA, Linn. Sp. p. 412; Kunth, Enum. 4, p. 81. Valley of the Limpio,
July; Bigelow. A glabrous narrow-leaved form. No. 1928 and 1929, Wright, are other
varieties of this polymorphous species.

TRADESCANTIA MICRANTHA (n. sp.): caule subramoso repente linea alterne pubescente; foliis
ovatis subamplexicaulibus acutis glabris margine serrulatis, vaginis brevibus ore ciliatis ;
umbella pauciflora sessili; sepalis obtusiusculis ad carinam hispidulis.—Lower Rio Grande,
. towards the mouth, October ; Schott. Stems flaccid, smooth, except the narrow alternate line
of pubescence. Leaves about three-fourths of an inch long, and one-third of an inch wide, the
two uppermost connate. Umbels only terminal in our specimens. Pedicels 3-8 lines long,
nearly smooth. Flowers scarcely one-third of an inch in diameter. Sepals ovate-oblong, equal.
Petals pale blue, one-third longer than the sepals, obovate-orbicular. Stamens 6; filaments
all bearded ; anthers all similar and fertile ; the cells separated by a broad connective. Ovary
obovate ; style long and slender ; stigma peltate-capitate. This species has the aspect of Callisia
repens. 3
— TRADESCANTIA BIANDRA (n. sp.): caule subramoso erecto glabro, superne nudo; foliis remotis
lanceolatis glabris margine ciliolato-scabris, floralibus brevibus acuminatis, vaginis ore nudis ;
umbella sessili multiflora; pedicellis villosissimis; filamentis imberbibus.—Mountains and
moist, rocky places, Puerto de Paysano, September; Bigelow. (No. 700, Wright.) pee
12-18 inches high, moderately branched above. Leaves 3-5 inches long, and 6-8 lines wide,

BOTANY。 225

acute, scarcely narrowed at the base; the sheaths wide and short. Floral leaves connate and
spreading horizontally, ovate, acuminate, cordate at the base. Umbel 20-40-flowered ; the
pedicel densely clothed with long white hairs. Sepals oblong, rather obtuse, smooth. Petals
roundish-obovate, a little narrowed at the base, deep rose-color. Filaments all smooth, two-
thirds the length of the petals; anther-cells separated by a wide connective. Style filiform ;
stigma capitate-peltate. Cells of the capsule 2-seeded.

Var. BREVIFOLIA: caule prostrato ; foliis ovatis approximatis crassiusculis glaucis, vaginis ore
ciliatis—Mountains near the mouth of the Pecos; Bigelow. The general appearance of this
plant is certainly very unlike that of T. leiandra, but the pedicels and flowers are so similar
that I hesitate to separate it as a distinct species.

TRADESCANTIA ANOMALA (n. sp.): caulibus pluribus erectis; foliis inferioribus angusto-lanceolatis
basi attenuatis ciliatisque, superioribus ovato-lanceolatis subamplexicaulibus, supremo (spatha ?)
cordato; racemo terminali paucifloro brevipedunculato; pedicellis brevibus glabris; sepalis
ovato-oblongis acutiusculis carinatis; petalis valde inequalibus, lateralibus orbiculari-obovatis,
impari rhomboideo parvula; staminibus 6; antheris difformibus; filamentis 3 superne, 2 basi
barbatis, una imberbe, Shady woods on the Blanco, Comale, and other rivers, Texas; Wright,
(No. 699.) San Antonio, Texas; Thurber. I have long had Texan specimens from Mr. Wright,
from near Austin, &c. The species is intermediate between Tradescantia and Commelyna ;
resembling the latter in the unequal petals and difformed stamens as well as in the termina]
leaf or bract (which is like a spatha laid open); and the former in the 6 fertile stamens with
bearded filaments. The plant seems to be an annual, and is a foot or 15 inches high. Lower leaves
4—6 inches long, and half an inch wide in the middle, the tapering base fringed with a few
long hairs, otherwise smooth ; upper leaves much shorter and rounded at the base. Peduncle
4-6 lines long. Raceme about 5-flowered; pedicels short, with ovate bracteoles at the base.
Sepals glabrous, green. The 2 lateral petals bright blue, nearly twice as long as the sepals, odd
one rhombic, white, less than one fourth as large as the others. The 3 stamens that are
opposite the petals shorter than the others and furnished with oblong anthers; filament of the
one opposite the small odd petal beardless, of the 2 lateral ones bearded with purple hairs near
the base. The other three stamens have smaller roundish similar anthers; the filament of the
middle one winged on each side, from the summit to nearly the base, with a membrane which
is fringed with yellow hairs; the other two filaments are bearded only near the summit, Ovary
ovate, 2-celled, (one of the cells abortive,) with 2 superimposed ovules in each cell; style long,
slender, and somewhat curved above; stigma capitate. Capsule oblong, cells 2-seeded. Seeds
as in the rest of the genus.

TRADESCANTIA RHODANTHA (n. sp.): caule erecto simplici glabro ; foliis linearibus complicato-
falcatis utrinque glabris margine scabriusculis, vaginis ore imberbibus ; umbellis terminalibus
longe-pedunculatis solitariis compositis 3—4-radiatis; umbellulis 3—4-floris; pedicellis sepala
exterioreque (antica?) vix hispidulis; filamentis omnibus barbatis; antheris conformibus.
Corallitas, Chihuahua, August; Thurber. Root fasciculate. Stem 12-16 inches high, slender,
Leaves about 3, the sides folded together. Peduncle 4-6 inches long. In the axil of the upper
leaf there is second small umbel. Primary rays of the umbel 1-1} inch long; pedicels of the

buds short and nodding ; of the flowers 6-10 lines long. Sepals ovate-oblong, rather obtuse.

Petals bright rose-color, orbicular-ovate, about 4 lines long. Stamens half the length of the
29 k

p

2و
" :نې ener‏

226 UNITED STATES AND MEXICAN BOUNDARY.

petals; filaments bearded with white hairs; cells of the anthers reniform, separated by a broad
connective. Style filiform ; stigma peltate-capitate. This species resembles T. rosea, but differs
in the smooth sheaths, compound umbel, etc. No. 701 of Mr. Wright’s Texan collection (1849)
seems to be a dwarf state of T. rosea, but our specimens are too imperfect for satisfactory
comparison.

CYPERACEAE.

CYPERUS DIANDRUS, Torr. Cat. Pl. N. York, p. 90, & Cyp. p. 251. Western Texas; Wright,
(No. 1749.)

Cyperus FLAVICOMUS, 21/0002. Fl. 1, p. 27; Torr. l. c. p. 253. Sonora, Mexico; Thurber.
(No. 1965, Wright.) Our specimens are smaller than the usual form of this species, and the
umbel is 2-4-rayed ; but in other respects there is no essential difference.

CYPERUS MICRODONTUS, Torr. p. 255. C. Gatesii, Torr. l. c. Western Texas; Wright. A
comparison of specimens from numerous localities shows the necessity of uniting these two
species.

CYPERUS ARTICULATUS, Linn. ; Torr. l. c. p. 256. Western Texas; Wright.

CYPERUS LATERIFLORUS (n. sp.): umbella capitato-contracta quasi laterali ; involucro diphyllo,
foliolis valde inequalibus, uno longissimo erecto culmum desinente ; spiculis confertis linearibus
12-20-foris; squamis parum remotis suborbiculari-ovatis obtusissimis (ferrugineis) obscure
trinerviis; floribus diandris; achenio obovato triquetro pallido scabriusculo nitidulo squama
subeequali; stylo trifido. Along mountain torrents, east of Santa Cruz, Sonora; Wright, (No.
1950.) Annual. Culms cespitose, about three inches high, triangular, slightly rough on the
angles. Leaves shorter than the culm, rough on the margin. Involucre of 2 very unequal leaves ;
one of the leaves nearly as long as the culm, of which it appears to be a continuation, the other
scarcely one fourth as long. Umbel somewhat capitate and apparently lateral, sometimes with
a single short ray. Spikelets 2-3lines long. Scales light brown on the sides with a pale narrow
margin and keel. Rachis very narrow and zigzag, slightly margined. Allied to C. fuscus
of Europe.

CYPERUS MicnauxiANvus, Schultes, Mant. 2, p. 123 ; Torr. Cyp. p. 259. Wet places, western
Texas and New Mexico, westward to the Colorado. No. 1946, Wright, is a dwarf variety. ۰
speciosus, Vahl, or at least of Torr. Cyp., of which we have Californian specimens collected by
Rev. A. Fitch, is, perhaps, only a luxuriant form of this species, in which the partial umbels
are furnished with conspicuous involucels. |

Cyperus TETRAGONUS, EU. Sk. l, p. 71; Torr. Cyp. p. 261. Santa Cruz, Sonora; Thurber.
Since this plant was noticed in the Monograph of North American Cyperacec, I have seen the
original specimens of Elliott, and have also received it from east Florida, Louisiana, and Texas.
The umbel consists of 4-10 somewhat spreading rays, each bearing a narrowly oblong spike an
inch or more in length. The spikes are either simple or they produce 1-3 smaller ones at the
base. Spikelets very numerous, obtuse and somewhat quadrangular, crowded on the rachis and
spreading horizontally, (or the lower ones reflexed,) about 2 lines long, usually perfecting 2 or
3 achenia. Scales oblong, rather obtuse, light brown on the sides, with a narrow stripe along
the obtuse keel. Stamens 3. Style deeply 3-cleft. Achenium oblong, triangular, dull,

BOTANY. 227

embraced by the broad membranaceous margins of the rachilla, which at length separate and
appear like 2 inner scales, in which character it accords with the subgenus Papyrus. This
species is allied to C. ligularis, Linn.

CYPERUS DISSITIFLORUS, Torr. Cyp. p. 266. Western Texas; Wright. Resembles the last, but
is a much smaller plant, with short rays and spikes; the spikelets acute, with narrower scales,
etc.

CYPERUS REPENS, Ell. Sk. 1, p. 69; Tor. Cyp. p. 264. C. phymatodes, Muhl. Gram. p. 23.
Hills near the Copper Mines, New Mexico, and dry ravines on the Limpia, western Texas;
Bigelow. Sandy river-banks, San Luis Rey, California; Parry. (No. 1948, Wright.)

CYPERUS SETIGERUS, Torr. & Hook. in Torr. Cyp. p. 434. Ravines near Eagle Pass, on the Rio
Grande; Bigelow. Western Texas; Wright.

CYPERUS LUTESCENS, Torr. d: Hook. l.c. Western Texas; Wright, (No. 105.) Perhaps too
near the last species.

Cyperus BALDWINI, Torr. Cyp. p. 70. Dry plains between the Pecos and Devil's river; Bigelow.

CYPERUS TRACHYNOTUS (n. sp.): culmo valido foliisque glabro obtuse trigono ; umbella simplici
3—6-radiata, radiis valde inequalibus ; involucro 3-4-phyllo longissimo; spicis subglobosis
polystachyis laxiusculis, spiculis lanceolatis compressis 10—14-floris; squamis parum remotis
ovatis acuminatis apice subrecurvatis mucronatis, carina superne denticulato-spinulosa; stamina
3; acheniis triquetris basi attenuatis (nigris) squama duplo longioribus. ۰ Ravines near the
mouth of the Pecos and on Devil's river ; Bigelow, Schott. (Nos. 704 and 1943, Wright.) I
have this plant from Key West. It is a well marked species, and does not appear to have been
hitherto described.

CYPERUS FILICULMIS, Vahl, Enum. 2, p. 328; Torr. Cyp. p. 267. Western Texas; Wright.

CYPERUS OVULARIS, Torr. Cyp. p. 278. Mariscus ovularis, Vahl, Enum. 2, p. 374. Western
Texas ; Wright.

Cyperus Haspan, Linn. Sp. p. 66; Kunth, Enum. 2, p. 34. C. gracilis, Muhl. Gram. p. 18. C.
leptos, Schultes, Mant. 2, p. 105; Torr. Cyp. p. 213. Western Texas; Wright.

Cyperus DRUMMONDII, Torr. & Hook. in Torr. Cyp. p. 437. Leone, western Texas; Bigelow,
Wright. Differs from Drummond's plant, in the somewhat compound umbel, longer rays and
larger spikelets with the scales less closely set. We havespecimens also from Louisiana and
Florida, in which the umbels are compound, but 5 spikelets are smaller, like those of the
original plant.

CYPERUS VIRENS, Miche. Fl. 1, p. 28; Torr. Cyp. p. 275. Moist ravines, western Texas and
New Mexico, near the Rio Grande ; Bigelow.

CYPERUS ARISTATUS, Rottb; Kunth, Enum. 2, p. 23. C. inflexus, Muhl. Gram. p.16; Torr.
Cyp. p. 274. Western Texas to California. (Nos. 1951 and 1955, Wright.) A widely-spread
species, including perhaps most of the Cyperi belonging to the section Aristati of Kunth, so far
as we can judge from the characters.

Cyperus ScHWEINITZU, Torr. Cyp. p. 276. C. Houghtonii, Torr. l. c. Hills near the Copper
Mines of New Mexico, and wet places, Rock Creek; Bigelow. (Nos. 703, 1944, and 1945,

Wright.) Our numerous specimens show a gradual transition from C. Houghtonii to C.
Schweinitzii.

FUIRENA SQUARROSA, Micha. Var. ARISTULATA, Torr. Cyp. p. 291. Wet places, Leon Springs,
Rio Coleto and other places in western Texas.

208 UNITED STATES AND MEXICAN BOUNDARY.

ELEOCHARIS EQUISETOIDES, Torr. Cyp. p. 296. E. Elliotti, Dietr. Spec. 2, p. 82, ex Kunth.
Scirpus equisetoides, Ell. Sk. 1, p. 79. In water, borders of the San Felipe. Near the Rio
Grande, October ; Bigelow. The nodes of the culm, especially on the upper part, are much
more closely approximated than usual.

ELEOCHARIS CELLULOSA, Torr. Cyp. p. 298. Boggy banks of the Royo Zaquete, September ;
Schott. Rio Colezo, Texas; Thurber. Rutenville in the same State; Wright. We have speci-
mens also from Key West, collected by Mr. Blodgett.

ELEOCHARIS PALUSTRIS, R. Brown, Prodr. p. 224: Torr. Cyp. p. 299. Alluvial soils, in over-
flowed places, from the Rio Grande to California. A variety with spikes nearly an inch long,
and with only rudimentary bristles at the base of the nutlets, was found by Dr. Bigelow near
San Elceario, on the Rio Grande. (Nos. 710, 712, 1934, 1957, and 1960, Wright.)

ELEOCHARIS OBTUSA, Schultes, Mant. 2, p. 89; Torr. Cyp. p. 303. Western Texas ; Wright.

ELEOCHARIS CAPITATA, E. Brown, Prodr. p. 225; Torr. Cyp. p. 305. On the Rio Coleto, Texas;
Thurber. (Nos. 1932 and 1933, Wright.)

ELEOCHARIS ROSTELLATA, Torr. Fl. N. York, 2, p. 347. Scirpus rostellatus, Torr. Cyp. p. 318.
Pedro, Pinta, ete. Santa Rita del Cobra, New Mexico; Bigelow. San Bernardino, Sonora ;
Thurber. (Nos. 1931, 1934, and 1956, Wright.)

ELEOCHARIS TENUIS, Schultes, var. B. Torr. Cyp. p. 310. Western Texas; Wright, (No. 713.)
In old spikes the scales are deeply bifid, and the divisions acute. The nutlets are pyriform, of
a brownish yellow color, very obscurely triangular, with three slightly elevated lines at the
angles. The bristles are only rudimentary.

ELEOCHARIS ARENICOLA, Torr. in Engelm. & Gray, Pl. Lindh. p. 30. Western Texas; Wright,
(No. 1958 and 1959.) The plant is much taller (12-15 inches) than the original specimens,
and the bristles are barely as long as the nutlets ; bnt in other respects there is no difference.

ELEOCHARIS ACICULARIS, R. Brown, Prodr. 1, p. 224; Torr. Cyp. p. 308. Western Texas to
California. Wright’s No. 1937 is a small form, growing on wet ground.

Scirpus OLNEYI, Gray, in Engelm. & Gray, Pl. Lindh. p. 30, (adn.) & Man. ed. 2, p. 499.
Copper Mines, New Mexico, Bigelow. San Bernardino, Sonora; Thurber. (No. 1964, Wright.)
The style is sometimes 3, and even 4-cleft.

Scirpus PUNGENS, Vahl, Enum. 2,.p. 255 ; Gray, Man. l. c. Frontera, Texas; Parry. (No.
1941 and 1963, Wright.) The spikes are oblong or sometimes almost cylindrical, and the style
is more frequently 3- than 2-cleft.

SCIRPUS LACUSTRIS, Linn.; Torr. Cyp. p. 321. 8. validas: Vahl, Enum. 2, p. 268. 5. acutus,
Muhl. Gram. p. 33. On the Rio Grande and its tributaries, from El Paso to San José, and
westward to California. On the valley of the Sacramento, Dr. Hulse, there are thousands of
acres covered with this plant, and of the height of 9 or 10 feet. It is called T'ulé or Giant rush.
It varies much in the size of the panicle. The perigynous bristles are mostly narrow and
retrorsely hispid, but sometimes broad and retrorsely or horizontally plumose. "These characters
are not constant, there being intermediate forms. Bentham refers No. 2021 of Hartweg's Cali-
fornian collection to S. riparius, Presl, which Kunth regards as identical with Elytrospermum
Californicum, C. A. Mey. ; which again is the same as the earlier Malacochete of Nees. In our
specimen of Hartweg’s plant there are four plumose bristles, while Meyer states that there are
but two in his Elytrospermum. The number of these organs is, however, by no means constant
in this genus, and in every other respect Elytrospermum resembles the form of Sc. lacustris with

BOTANY. 229

broad plumose sete. Scirpus lacustris of the old world is said to differ from ours in having a
3-cleft style, but in our authentic European specimens the style is 2-cleft.

Scirpus MAKITIMUS, Linn.; Torr. Cyn. p. 323. On the Rio Grande, and westward along the
Gila to the Colorado. (No. 1942 and 1962, Wright.) The long creeping rhizoma produces one
or more ovate farinaceous tubers about an inch in length. They are white inside, and covered
with dark brown scales which terminate in long filaments.

FIMBRISTYLIS SPADICEA, Vahl, Enum. 2, p. 294; Torr. Cyp. p. 346. F. cylindrica, Vahl, l. c.
Leon Springs, western Texas ; Bigelow.

IsOLEPIS CAPILLARIS, Roem. تل‎ Schultes, Syst. 2, p. 118; Torr. Cyp. p. 350. Fimbristylis capil-
laris, Gray, Man. ed. 2, p. 503. Oak woods on the Colorado, Texas; Wright, (No. 1936 in
part.) Var. culmo 1-2-stachyo. Base of the Limpio mountains, and near the Copper Mines of
New Mexico; Bigelow. (No. 1936, in part, Wright.) Culms 3-6 inches high, often bearing
only a single spike, and very rarely more than two ; the primary one solitary and the other on
a ray 2-3 lines long. Involucre of two very unequal leaves, one of which is longer than the
ray, the other mostly shorter than the sessile spike. Scales and nutlets as in the ordinary form
of the plant.

DICHROMENA LEUCOCEPHALA, Micha. Fl. 1, p. 375; Torr. Cyp. p. 357. Near the Guadalupe
river, above Victoria, Texas; Schott. (No. 716, Wright.)

HEMICARPHA SUBSQUARROSA, Nees, Cyp. in Endl. & Mart. Fl. Bras. p. 61, t. 4, f. 1; Torr. ۰
New York, 2, p. 362. Scirpus subsquarrosus, Muhl. Gram. p. 39. Isolepis subsquarrosa, Schrad. ;
Torr. Cyp. p. 51. Hills near the Copper Mines of New Mexico. (No. 715 and 1936, Wright.)

CLADIUM EFFUSUM, Torr. Cyp. p. 374. Schcenus effusus, Swartz; Muhl. Gram. p. 13. Wet
places in elevated valleys on the Limpio; Bigelow. Western Texas; Wright.

GENUS CAREX.
BY PROFESSOR C. DEWEY.

Carex HooDrr, Boott, in Hook. Fl. Bor.—Amer. 2, p. 211, t. 211. Copper Mines, New
Mexico; Bigelow. ۱

Carex 10064811, Boott, l. c. t. 214, Copper Mines and other parts, New Mexico; Bigelow.

CAREX MARCIDA, Boott, l. c. t. 213. River banks near San Luis Rey, California, March; Parry.
San Bernardino, Sonora, and along the Gila, June; Thurber. Camp Tezotat, Sonora; Thurber,
Schott. .

Carex SICCATA, Dewey in Sill. Journ. 29, p. 218, t. F. f. 18, & 14, p. 353. C. pallida, Meyer.
Chihuahua ; Parry.

Carex Festiva, Dewey in Sill. Jour. 29, p. 351, t. W. f. 11. Monterey, California, April;
Parry.

CAREX CEPHALOPHORA, Willd. Sp. 4, p. 220. In woods, western Texas; Wright.

Carex HOOKERIANA, Dewey in Sill. Jour. 29, p. 248, t. X. f. 75. Copper Mines and Rio Mim-
bres, New Mexico; Bigelow. The specimens are numerous, large and small forms, and are well
characterized.

Carex Lippont, 20014, in Hook. Fl. Bor.—Amer. 2, p. 214, t. 215. Copper Mines, May;
Thurber. :

CAREX MONTICOLA (Dewey): spicis distinctis erectis breviusculis oblongis ; staminifera terminali

|
i
i
i
=

ee e

230 UNITED STATES AND MEXICAN BOUNDARY.

solitaria inferne tereti brevi-bracteata cum squamis oblongis obtusiusculis dorso excepto cas-
taneis; pistiliferis 2-sublaxifloris, superiore sessili illi contigua, infima interdum sub-remota
vaginata exserte pedunculata ; perigyniis 2- vel raro 3-stigmaticis lato-ovatis oblongis convexo-
concavis acutiusculis vix rostratis ore integris vel subbifidis subvillosis nervosis, squama lato-
ovata acuta vel inferiore mucronata paulo longioribus ; foliis vaginatis culmum superantibus.—
Mountains east of San Diego, California, Parry. Culm 8-10 inches high, scabrous above, leafy;
leaves flat, rough on the edges, sheathed to the base and longer than the culm ; the lower scales
of the perigynium sometimes mucronate and equal to it; the achenium ovate or obovate and
convex above. In species where the stigmas are commonly two but sometimes three, the ache-
nium has the lenticular shape belonging to two stigmas, probably the other stigma being
abortive.

CAREX RECTA, Boott; Hook. Fl. Bor.—Amer. 2, p. 220, t. 222, no. 95. Rio Mimbres, New
Mexico, May ; Thurber.

CAREX striction, Dew. C. stricta, var. strictior, Carey in Gray s Man. Rio Mimbres, New
Mexico, May ; Thurber.

Carex stricta, Lam. Rio Mimbres, New Mexico, June ; Bigelow.

Carex Emory (Dewey): spicis staminiferis terminalibus ternis oblongis cylindraceis erectis,
superiore longiore brevi-pedunculata, inferioribus sessilibus brevioribus illi contiguis brevi-brac-
teatis, densifloris, omnibus cum squamis oblongis obovatis obtusis castaneis ; spicis pistilliferis

4 longo-cylindraceis densifloris sessilibus longo-foliaceo bracteatis, superioribus apice stamini-

feris, infima omnino fertili et subremota; perigyniis distigmaticis ellipticis basi teretibus apiculatis
vel brevi-rostratis ore integris squama ovata oblonga subacuta duplo longioribus ; culmo superne
scabro; bracteis evaginatis margine scabris; planta pallido-viridi vel glauca.—The staminate
spikes are rather short and contiguous, the upper longest and sub-clubform ; pistillate spike 4,
rather long, 11-2 inches, cylindric, erect, sessile, staminate at the apex and bracteate, the lowest
wholly fertile and slightly sheathed and nearly sessile; perigynium narrow-elliptic, tapering
below, flattish, obovate and apiculate or short and round, rostrate, at the orifice entire, stigmas
two ; pistillate scale ovate, oblong, acutish, half as long as the fruit; culm triquetrous, scabrous
above; bracts scabrous on the margin, long and leafy and surpassing the culm, whole plant
pale green or glaucous. On the upper Rio Grande; Bigelow.

Carex DECIDUA (Boott. in Linn. Trans. 20, p. 119): spicis 3-6 erectis cylindraceis gracilibus
atro-purpureis, suprema staminifera brevi-pedunculata claveformi omnino stamina habente vel
sepe basi aut interdum medio pistillifera, cum squamis oblongis obovatis obtusis dorso albi-
nervosis ; pistilliferis 1-5, interdum 1-3, sessilibus bracteatis, superioribus 1-3 brevibus parvis
contiguis apice staminiferis, inferioribus 2—3 longioribus subremotis foliaceo—bracteatis ;
perigyniis distigmaticis oblongo-ovatis vel partim obovatis rostellatis inferne teretibus nervatis
ore integris, squama oblonga obtusa dorso pallida subduplo longioribus. Banks of rivers,
Santa Barbara, California ; Parry.—Culm 1-14 foot high, triquetrous and very rough on the
edges above, leafy towards the root, and sheathed, rather slender ; staminate spike single, about
14 inch long and rather thick, short-pedunculate, often pistillate at the base, and sometimes
in the middle, or both, the rest destitute of pistils; pistillate spikes erect, sessile, rough-
bracteate, varying in number, sometimes 1-3 short and approximate, and near the staminate
having stamens at the apex with two or three and longer spikes below not androgynous, some-
times only two or three pistillate spikes, of which the upper is short and the lower longer and

BOTANY. 231

more remote; stigmas two; perigynium ovate-oblong or obovate, very short rostrate,
entire at the orifice, nerved and lens-like, scarcely stiped ; pistillate scale oblong, obtuse, pale
on the keel, and near twice as long as the fruit.

CAREX BARBARE (Dewey): spicis staminiferis terminalibus 2 raro 3 erectis cylindraceis,
suprema longa pedunculata, inferiore breviore illi contigua, infima sub-elongata ; pistilliferis 3
longo-cylindraceis, 2-4-uncialibus gracilibus, superiore apice staminifera brevi-bracteata erecta,
inferioribus longioribus subremotis subrecurvis basi laxifloris brevi-vaginatis foliaceo-bracteatis,
omnibus nigro-purpureis; perigyniis distigmaticis oblongis obovatis apiculatis ore integris,
squama oblongo obovata dorso pallida mucronata brevioribus; culmo erecto glauco longe.
foliato vaginatoque. Banks of streams, Santa Barbara, California; Parry.—Culm 16-20
inches high, erect, with long leaves towards the base and long leafy bracts above, glaucous ;
spikes 3-6, cylindric, slender, blackish-purple; staminate terminal 1-3, commonly 2, the upper
nearly two inches long, pedunculate, the lower sessile, contiguous and shorter, the third longer
than the last and more remote ; pistillate 3, long-cylindric, 2-4 inches long, slender ; the upper
staminate at the apex, short-bracteate, erect; the lower longer, subremote, subrecurved, loose-
flowered at the base and short-sheathed ; perigynium oblong-obovate, short-rostrate, entire at
the orifice, stigmas 2, pistillate scale oblong-obovate, on the back pale, and the nerve extended
into a mucronate point, making the end of the scale sometimes emarginate. The locality gives
the name of the species.

Carex SoHOTTII (Dew.): spicis staminiferis terminalibus 3-5 erectis nigro-rubris approximatis
prope geminatis cylindraceis, superiore longa 3-unciali medio inflata, inferioribus brevio-
ribus sessilibus contiguis vel infima remotiore et interdum geminata; pistilliferis 3 raro 4
perlongo-cylindraceis gracillimis 6-8 uncialibus perlaxifloris inaequaliter pedunculatis, inferi-
oribus longe pedunculatis folioso-bracteatis basi vaginatis vix fructiferis vel abortivis, cum
squamis oblongis arctis obovatis vix acutis; perigynio carente vel nimis immaturo; culmis
superne scabris subprostratis ? cum foliis bracteisque viridi glaucis. Banks of rivers, Santa
Barbara, California; Parry.—This species has very variable spikes and form, as the description
shows ; spikes 6-8, cylindric ; sometimes staminate 5 and pistillate 3, sometimes 4 and 3, some-
times 3 and 3, or again 3 and 4, most of which are long, and some very long; the staminate
upper 3 are approximate, so as to be almost geminate, the highest 3 inches long and ventricose
in the middle, and the lower a little remote and shorter, often one lower and a little remote and
rather long, and on one specimen geminate and one quite short; the staminate scale oblong,
obovate, dark red and pale on the back ; pistillate spikes 3, rarely 4, very long and slender, 4-8
inches, very loose-flowered, unequally pedunculate, the lowest long pedunculate and long
vaginate, all leafy bracteate, with scarcely the rudiment of fruit, or abortive, and with a
narrow, oblong, obovate scale scarcely acute; perigynium wanting, or too immature; culm
triquetrous above and scabrous, with glaucous leaves and bracts. This species has some affinity
to C. Darwinii, Boott. in Trans. Linn. 20, p. 120, but the numerous differences far separate the
two. There may have been some crushing of the culms to account for their prostrate appear-
ance, without which, at least, the pistillate spikes must have been long-retrocurved as in C.
pendula, Gooden.

CAREX PHYLLOSTACHYS, Meyer, Trans. Acad. St. Petersb. Collected in California by Dr.

232 UNITED STATES AND MEXICAN BOUNDARY.

Parry. Clearly distinct from Carex Geyeri, Boott., and closely related to Carex Wildenowii,
Schk.

CAREX UMBELLATA, Schk. Car. II, p. 55, t. Ww w. fig. 171, var. vicina, Dew. in Sill. Journ.
9, p. 31, 6 11, p. 316, t. D. f. 13. Often with three pistillate spikes near the staminate spike,
as well as the radical spikes, on the same tuft. Woods on the Colorado and Blanco rivers,
Texas; Wright. In both these localities, the plant described and drawn by Schk., and the
variety also abound together, the latter most common.

Carex THURBERI (Dewey): spicis 4 oblongo-cylindraceis pedunculatis foliaceo-bracteatis ;
spica staminifera terminali solitaria sublonga cum squamis oblongis obtusis mucronatis fulvis :
pistillifetis 3 subcrassis vix nutantibus densifloris sub-approximatis, superioribus vix vaginatis,
infima cum pedunculo sublongiore vaginato exserto; perigyniis tristigmaticis ovato oblongis
multo-nervosis subventricosis brevi-conico-rostratis bidentatis squama brevi-oblonga obtusa
dorso trinervata scabro-aristata longioribus vel basi spicarum brevioribus ; culmis et foliis mar-
gine scabris.—Mabibi, Sonora, June; Z'wrber.—Culm two feet high, erect, scabrous above and
smooth below the spikes, leafy towards the base; upper leaf vaginate and long as culm, and
with the leafy bracts rough on the edges; staminate spike single, erect, long, and bracteate ;
pistillate spikes three, oblong, cylindric, thickish, densely flowered, pedunculate, the lowest
vaginate, with an exsert peduncle ; stigmas three ; perigynium ovate or oblong, many-nerved;
tapering into a shortish beak, bidentate, some inflated or ventricose ; pistillate scale short,
oblong, obtuse, scabrous cuspidate, shorter than the fruit, except at the base of the spikes it is
longer. This differs much from C. hystricina, Willd., to which it is related.

CAREX HYSTRICINA, Willd. Spec. Plant. 4, p. 232. On the banks of the Limpio, Texas; and at
Santa Rita del Cobre, New Mexico; Bigelow.

Carex Wricut (Dewey): spicis staminiferis 2; raro 3; oblongo cylindraceis erectis,
terminali longiore brevi-pedunculata, secunda brevi illa contigua sessili raro remotiuscula, tertia
remotiore, omnibns bracteatis cum squama oblonga acuta castanea inferne aristata ; spicis pistil-
liferis 2-3 oblongo cylindraceis gracilibus sublaxifloris remotis exserte pedunculatis, superiore
apice staminifera evaginata, infima longe vaginata et longe exserta, omnibus foliaceo-bracteatis ;
perigyniis tristigmaticis ovatis subconicis subtriquetris brevi-rostratis multo-nervatis ore bilabi-
atis subscabris vix ventricosis squama ovato-oblonga cuspidata paulo longioribus vel inferne
paulo brevioribus. In woods on the Colorado of Texas, and near the Rio Grande; Wright.
Culm about a foot high, erect or flaccid, with subradical flat nerved vaginate leaves and leafy bracts
nearly equalling the culm; spikes 3-6, oblong-cylindric ; staminate 2, upper an inch long and
pedunculate, the lower one-third as long and commonly close to it, rarely a third, which is
remotish, and all bracteate ; pistillate spikes 2-3, remote and pedunculate, the upper staminate
at the apex, the lower longer pedunculate and exsert; all rather loosely flowered, especially
towards the peduncle; stigmas three; perigynium ovate, sub-conic, slightly triquetrous, short
and round, rostrate, many-nerved, bilabiate and subscabrous ; scale ovate-oblong, rough cuspi-
date, a little shorter than the fruit, except on the lower part of the spike where it often surpasses
the fruit. Differs from C. scabrata, Schw., to which it is nearly related in the number of
staminate spikes, and in various particulars of the fertile spikes and their fruit. Named after
Mr. C. Wright, one of the exploring party.

CAREX LANUGINOSA, Micha, Flor. Bor.-Amer. 2, p. 175. Rio Mimbres and Santa Rita del
Cobre, New Mexico; Bigelow, Thurber. ۱

BOTANY. 233

EQUISETACEJE.*

EQUISETUM ARVENSE, Linn. ; Pursh, Fl. 2, p. 651; Braun & Engelm. in Sill. Jour. 46,'p. 83 ;
Torr. Fl. N. York, 2, p. 480. Near the Mimbres, New Mexico; Thurber. Small sterile
specimens.

EquisETUM LEVIGATUM, Braun & Engelm. l. c. Banks of the Rio Grande, near El Paso, and
near the Coper Mines.

EQUISETUM ROBUSTUM, Braun & Engelm. |. c. Banks of the Rio Grande.

FILICES.

WooDpWARDIA RADICANS, Willd. Sp. 5, p. 418; Hook. & Arn. Bot. Beech. p. 162 & 405. W.
Chamissoi, Brack. Ferns of the U. S. Expl. Exped. p. 138. Between San Diego and the
Colorado ; Schott.

ADIANTUM CAPILLUS-VENERIS, Linn. ; Hook. Sp. Fil. 2, p. 36. From San Antonio to the Rio
Grande, and northward to New Mexico ; common along running streams.

ADIANTUM OHILENSE, Kaulf. Enum. p. 207; Hook. l.c. p. 43. California, Texas; Wright,
(No. 2123.)

Var. HIRSUTUM, Hook. l. c. p. 43, t. 15, B. A. pilosum, Fée, Gen. Fil. p. 118. Rocks near
the mouth of the Pecos; Bigelow.

PTERIS AQUILINA, Linn. Var. 8. LANUGINOSA, Hook. Fl. Bor.—Am. 2, p. 263; Brack. l. c. p.
119. P. lanuginosa, Hook. & Arn. Bot. Beech. p. 405 ; Agardh, Gen. Pterid. 51.2 Between
San Diego and the Colorado ; Schott.

PELLZA FLEXUOSA, Link. Fil. Sp. p. 60; Fée, Gen. Fil. p.129. Allosorus, Kunze; Schk.
Fil. Supp. 1, p. 46, t. 23. Pteris, Hook, Ic. Pl. 2, t. 119. On running streams near the Rio
Grande, and along the San Pedro and the Gila. (No. 825, Wright.)

PELLZA ANDROMEDJEFOLIA, Fée, l. c. Allosorus andromedefolius, Kunze, Anal. Pterid. p. 18,
t. ll. Pteris, Kaulf. Enum. Fil. p. 188. Between San Diego and the Colorado ; Schott.

PELLEA PULCHELLA, Fée, l. c. Allosorus pulchellus, Mart. & Gal. Fil. Mex. p. 47, t. 10, fig.
1, A. formosus, Liebmann, Mex. Breg. p. 68. From Howard's Springs and the Pecos to the
San Pedro and the Waterholes; Bigelow, Schott. (No. 824, Wright.)

PELLÆA MUCRONATA. Allosorus mucronatus, D. C. Eaton in Sill. Jour. (ser. 2,) 64, p. 138 ; Torr.
Bot. Whippl. Rep. p. 160. Pellea Wrightiana, longimucronata, & Ornithopus, Hook. Sp.
Fil. 2, p. —, t. 115 & 116, (ined.) On rocks from the Rio Grande, westward, to the Colorado
and California. (No. 2130 and 2131, Wright.) This fern varies in height from two inches to
over a foot. In its simplest state the upper pinnz are trifoliate, and the lower quinquefoliate ;
from this it varies to a state in which the secondary rachis bear numerous and minute trifoliate
pinnules. Some of the forms resemble P. ternifolia, Link. l. c., (Pteris ternifolia, Hook. d
Grev. Ic. Fil. 2, t. 126,) but have not the narrow linear outline of that species, nor its obovate-
cuneate sterile pinnules.

PELLÆA ATROPURPUREA, Link.l.c. Pteris atropurpurea, Willd. Sp. Pl. 5, p. 375; Pursh, l. c.
2, p. 668. Platyloma atropurpurea, J. Smith; Torr. Fl. New York, 2, p. 488. Allosorus
atropurpureus, Presl. Tent. Pterid. p. 153. ; Gray, Manual, 2d ed. p. 591 -Along the Mimbres,
New Mexico; Bigelow.

* This and the following orders of Acrogens were elaborated by Daniel C. Eaton, esq., of the Scientific School of Yale College.
The fira:ses will be the subject of a separate report, to be published in the Smithsonian contributions.

30

234 UNITED STATES AND MEXICAN BOUNDARY.

CHEILANTHES 11718611111, Hook. Sp. Fil. 2, p. 87, t. 110, 4. Near the Rio Grande and the Gila.

CHEILANTHES ALABAMENSIS, Kunze in Sill. Jour. (2d ser.) 6, p. 87; Hook. l.c. p. 89, t. 103, B.
Rocky and shady ravines, at the mouth of the Pecos; Bigelow. On the lower Rio Grande, Schott.

CHEILANTHES TOMENTOSA, Link. l. c p. 65 ; Hook. l. c. p. 96, t. 109, A. From the Rio Grande
westward along the Gila to the Colorado.

CHEILANTHES LANOSA. C. vestita, Hook. l. c. p. 98, t. 108, B. Nephrodium lanosum, JMichz. ۰
Bor.-Am, 2, p. 210? Myriopteris gracilis, Fée, l. c. p. 150, t. 29, 7.6. Along the Rio Grande;
Wright. The name of C. vestita unquestionably belongs to the fern described and figured by
Professor Gray under that name in the Manual, (2d ed.) p. 592, t. 10.

CHEILANTHES LINDHEIMERI, Hook, l. c. p. 101, t. 107, A. At the Copper Mines and in ; Wild-
rose Pass : ۰ Bigelow, Schott.

CHEILANTHES F'ENDLERI, Hook. l. c. p. 103, t. 107, B. Near the Copper Mines, New Mexico ;
Bigelow. Sonora; Parry. Some of the specimens are fully a foot high, and have the pinne
more remote than usually.

CHEILANTHES ASPERA, Hook. l. c. p. 111,1. 108, A. Lower Rio Grande; Schott. Near the
Copper Mines and along the San Pedro; Bigelow. The characters of a new species of this
interesting genus are subjoined.

CHEILANTHES GRACILLIMA (sp. nov.): fronde lineari-oblonga bipinnata; pinnis pinnulisque con-
fertis, pinnulis sessilibus ovatis obtusis superne pauciter albo-pilosis subtus tomento denso fulvo
obtectis, margine reflexo involucrem continuum efficienti.—Stipites ebenei plures ecaudice
paleaceo subrepente erecti. Rachides primarii secundariique cum stipite juniore paleis gracilibus
instructi. Cascade mountains of Oregon at 7,000 feet of altitude, latitude 44°, collected by Dr.
Newberry i in Williamson's Expedition, and by Dr. Bigelow in Whipple's Expedition. A very
delicate little fern of the Lendigera group. Stipes 2-3 inches long; frond half as long, and 3-5
lines wide; pinne 7-10 pairs ; pinnules 2-3 pairs.

HYPOLEPIS CALIFORNICA, Hook. l. c. p. و11"‎ t. 88, A. Collected between San Diego and the
Colorado; Schott.

NoTHOCHLENA RUFA, var. B, Presl, Reliq. Hanke. 1, p. 19; Martens & Galeotti, l. c. p. 45; Leib-
mann, l. c. p. 62. Cheilanthes ferruginea, Willd. Herb.; Link. l. c. p. 65. Along the San Pedro
and Rio Grande, and on the Organ mountains of New Mexico.

NOTHOCHLZNA SINUATA, Kaulf. l. c. p. 135; Kunze in Schk. Fil. Supp. 1, p. 95, t. 65. — Acrosti-
chum, Swartz, Syn. p. 14. Western Texas from San Antonio to the Rio Grande, and along
that river northward to New Mexico. 0. Wright, No. 814, (1849.) A variety of this species
having smaller and crenated, not pinnatifid pinne with whiter ciliated scales beneath, and a
denser stellate pubescence above, looking through a lens like newly fallen snow, was collected
in rocky places near the San Pedro and the Gila.

NOTHOCHLÆNA PULVERACEA, Kunze in Linnea, 13, p. 135, & 18, p. 338; Liebmann, Mer. ien p.
63. Lower Rio Grande; Schott. Rocky places on the Pecos and San Pedro; Bigelow. No.
820 and 2124, Wright. Kona and Liebmann consider this distinct from Cheilanthes pulveracea,
Presl, Rel, Henk. 1, p. 64; Hook. Sp. Fil. 2, p. ۰

NOTHOCHLÆNÆ CRETACEA, Liebmann l. c. p. 64? At Painted Camp and at the entrance to
Wild-rose Pass; Bigelow, Schott. O. Wright, No. 821, (1849.) Our plant agrees well with
the description cited, but has not been compared with authentic specimens. It grows in tufts
about 6-8 inches high, and has much the appearance of Gymnogramme triangularis, Kaul/.;

BOTANY. 235

the frond being five angled and covered beneath with a dense light-yellow farina. Stipes stout,
reddish brown and shining ; frond 1-3 inches long and fully as wide.

NEUROGRAMME PEDATA, Link, Fil. Sp. p. 139; Fée, Gen. p. 168. Hemionitis, Swartz, Syn.
Fil. p. 20 & 209, t. 1, كير‎ 3. Along the Rio Grande, San Pedro, and Gila; mostly on rocks.

GYMNOGRAMME TRIANGULARIS, Kaulf. Enum. p. (3; Hook. & Grev. lc. Fil. t. 153; Hook. Fl.
Bor.-Am. 2, p. 259. Between San Diego and the Colorado; Schott.

ASPLENIUM SEPTENTRIONALE, Hoffmann, Deutschlands Flora, 2, p. 12; Hook. & Arn. Brit. Flor.
ed. T, p. 588; Lindley & Moore, Nature Printed Ferns, t. 41, C. On Ben Moore, New Mexico,
May ; Bigelow. (No. 2122, Wright.)

ASPLENIUM Tricnomangs, Linn.; Torr. Fl. New York, 2, p. 491; Lindl. & Moore, l. c. t. 39.
New Mexico; Wright, (No. 2121.)

ASPLENIUM EBENEUM, Willd. Sp. Pl. 5, p. 329; Pursh, Fl. 2, p. 666; Torr. Fl. New York, 2,
p. 492. Inthe Great Cañon of the Rio Grande; Parry.

PoLYPODIUM OALIFORNICUM, Kaulf. Enum. p. 102; Hook. & Arn. Bot. Beech. p. 161 & 405 ;
Hook. Fl. Bor..Am. 2, p. 258. (Excl. Syn. Hook. & Grev. Ic. Fil. t. 56.) San Diego;
Bigelow.

Potypoprum INCANUM, Willd. Sp. Pl. 5, p. 174; Pursh, Fl. 2, p. 659; Gray, Manual, p. 590.
On igneous rocks near the Great Cañon of the Rio Grande; Parry.

LasrREA PATENS, Presl, Tent. Pterid. p. 10; Liebmann, l. c. p. 119. Aspidium, Swz.; Willd.
Sp. Pl. 5, p. 244; Hook. & Arn. Bot. Beech. p. 162. A. molle, Kunze in Sill. Jour. (ser. 2) 6,
p. 83. Common in western Texas and near the Rio Grande. This fern is found from Florida
to Texas and in California, (Bot. Beech. l. c.) Our specimens agree with those from the Kew
Gardens in Herb. Gray, and do not present the venation of Nephrodium molle so well shown
in Schott s Genera Filicum.

LasrREA ARGUTA, Brack. l.c. p. 196. Aspidium argute, Kaulf. l. c. p. 242; Torr. Bot. Whippl.
Rep. p. 160. Between San Diego and the Colorado. In Lindley & Moore Nat. Print. Ferns,
18, this is said to be only a larger and more developed form of L. rigida, Presl, |

POLYSTICHUM MUNITUM, Presl, l. c. p. 83; Brack. l. c. p. 203. Aspidium munitum, Kaulf. l. c.
p.236; Hook. Fl. Bor.-Am. 2, p. 261. Between San Diego and the Colorado.

PHANEROPHLEBIA NOBILIS, Presl, l. c. p. 85; Liebmann, l. c. p. 124. Aspidium nobile, Schlecht.
Linnea 5, p. 610; Kunze in Schk. Fil. Supp. 1, p. 155, t. 67. A. pumilum, Mart. & Gal. l. c. p.
64, ۰ 17, f. 1. Hueco tanks in western Texas, and at Van Horn's Well.

WoopsrA OBTUSA, Torr. Catal. pl. N. Y. Fl. 2۷. Y.2, p. 500; Hook. Sp. Fil. 1, p. 62.
W. Perriniana, Hook. & Grev. Ic. Fil. t. 68. Hills near the Copper Mines. The specimens
are all small, and the pinnules are crisped and glandularly ciliated. The same form occurs on
the Columbia river.

Anemia Mexicana, Klotsch in Linnea, 18, p. 526; Kunze in Schk. Fil. Supp. 2, p. 75, t. 131;
Hook. Ic. Pl. 988. Clefts of rocks in a deep arroyo near the mouth of the Pecos, and at Medina
creek, (No. 826 and 2117, Wright.)

LYCOPODIACEX.

SELAGINELLA RUPESTRIS, Spring, Monog. Lycop. 2, p. 55. Lycopodium rupestre, Linn.; Hook.
Fl. Bor.-Am. 2, p. 267. Along the Rio Grande at Eagle Pass and at the mouth of the Pecos,
&c.; Schott, Bigelow. (No. 2116, Wright.) Var. B. Hook. l.c. excl. syn. Presl. S. struthioloides

Torr. Bot. Whippl. Rep. p. 159, excl. syn. Presl. Mountains near El Paso; Wright. Organ

è

206 UNITED STATES AND MEXICAN ۰

mountains, New Mexico; Bigelow. Lyc. struthioloides, Presl. referred by Hooker, and follow-
ing him by Dr. Torrey, to the slender variety of the above, was considered by Spring (l. c. 1, p. 32)
a form of Lyc. taxifolium, though he says he did not carefully examine the original specimen in
the Imperial herbarium at Vienna.

SELAGINELLA LEPIDOPHYLLA, Spring, l. c. p. 72. Lycopodium lepidophyllum, Hook. Ie. Pl. 2,
t. 162, 163. In the valley of the Rio Grande, and near the San Pedro, mostly on lime rock.
C. Wright, No. 2114, (1851-2).

HYDROPTERIDES.

MARSILEA UNCINATA, A. Braunin Sill. Jour. (2d ser.) 3, p. 55. New Mexico; Dr. Bigelow,
No. 166

MARSILEA VESTITA, Hook. & Grev. Ic. Fil. t. 159. San Elceario on the Rio Grande and
elsewhere in western Texas. C. Wright, No. 2112, (1851-2).

MARSILEA MACROPODA, A. Braun,l. c. Western Texas and along the Rio Grande. C. Wright,
No. 2111 (1851-2).

AzoLLA CAROLINIANA, Willd. Sp. 5, p. 541; Torr. Fl. N. York, 2, p. 513. Rio San Antonio,
and Rio Gila.

I N D E X.

THE SYNONYMS ARE PRINTED IN ITALICS.

8 و و 8 8 و و ع و 2 8 ع و 5 8 8 8 زا با ه هط RS‏ ع ددعت 9855 و

2 و 5

5
-

Page.
Abies Douglasii.---------- 910 | Achyrachena mollis
ها دام 1 170 ومعم ا‎
0103090103 Sues ی 170 مهو کم‎ Sco cak ime needa pe aha
Fragrant -ssassn 170 vermicularis....... uda
mellifera 170 | Acleisanthes anisophylla
micrantha 170 Berlandieri د ته‎
umbellata 170 crassifolia
Abutilon crispum -.----- 39 longiflora
holosericeum A ctinell gent
parvulum 39 Bigelovii
Texense 39 1 y th d
Thurberi 39 odorata
Acacia Cavenia 62 linearifolia
eonstrieta 62 PORUM a a a وتا و‎ QUE du 3
Coulteri 62 A ctinol pi i li
ادا د‎ rcc em dna 62 Act is longifol
cuspi ata 62
* Farnesiana 62 Wrightii
flexuosa 62 Adenophyllum Wrightii
Greggii ——— 61 Adenostoma fasciculata
hirta 62 sparsifolia
到 Rd 61 Adelia ligustrina
Reemeriana 61 | Adhatoda dipteracantha
Schottii 62 longiflora
tephroloba 61 Adiantum Capillus
Texensis 62 Chilense
tortuosa 62 pilosum
Wrightii .---- ۰ 61 | Adolphia infesta اناه واه‎
Acæna pinnatifida 63 | Atsculus Californica
Acalypha Caroliniana...................--. .--..-.. 199 | Agarista 6
gracilens 199 A g
hederacea 200 | Ave ANN. cee case عونك‎ dies دحوم وسل‎ shee cee
phleoides 199 filifera
prunifolia 200 geminiflora
١٢٢ 57 200 Lecheguilla
Virginica 199 maculata
Acanthaceae 122 parviflora
Acanthochiton Wrightii 179 revoluta
Acanthogonum rigidum 1177 Virginica
Acarphea artemisizefolia 95 | Aldama uniserialis
Aceracem 47 Algarobia dulcis
hyll 47 glandulosa
Acerates auriculata 160 juliflora
decumbens 160
viridiflora .-.. 160 | Alismaceæ
Achillea millefoli 102 Allionia albida ....

ا

هسه و وج و و ص ور weer‏

و و و رای este ees‏ سه س س په

ان او ې

Aquilegia Canadensis
leptocera

A Ts
patula
Arctostaphylos polifolia
tomentosa
Benthamii
diffusa
Dougla sii

tenella
tenuifolia
e. 714

Meena

Adislocbii beijos

longiflora

'htii

Aromia روه ره‎ anle on ee سر‎ EEE 5

۸ مما‎ disen
Artamisia Californica

Canadensis

INDEX,
Page.
169 Anoda Wrightii
174 Anoplanthus COMOSUS
217 Anredera scandens ......
217 Antennaora dioica
218 Anthericum pomeridianum...-... «== ==»
217 Anticlea Fremontii
217 tphytum heliotropioides
217 | Antirrhinum Coulterianum
Mu lc A i dec cee عم‎
233 1 سي‎
233 Aph anos tephus ramosissimus
233 phora humilia
233 BOW ۰ ۳ عسوي مه هد ا‎ een
233 lanceolata
204 ercu es
203 pilosissima
126 serrata
180 Aphyllon fasciculatum
180 niflorum
181 Apiactrum angustifolium. ..........
179 | Aploppappus ciliatus
179 discoideus
179 ericoides
179 gracilis ......
180 laricifolius
213 ۱ کم‎
179 | hyll
| ramulosa
SORO ده دع سار ها اد‎
spinulosus
poeynacec
Apocynum cannabinum
Anadanthae
Ap thera

عست عد د

238

Allionia incarnata
nyctaginea
Allium acuminatum .......

striatum

۸ chyrantha

were "n" "^" "^" rtt.‏ بپ ې ې يا

8
Amp ge مت ی‎ ursi دپ‎

tamariscinus
Amb! ina na polygonoides
Amblyolepis setigera
Amblyopappus pusillus
Ambrosia chei NSE

psilostachya - .-- .. مت کت زب ی وتا‎ ee = sss

Amelanchier Canadensis
` Ammania latifolia
Wrigh

os

Amoreuxia Scheidiana...........-

Wrightii
Amorpha asta tege.
fru

aun“

218
Ampelopsis quinquefolia ............. .... ....- "c

Amsinckia intermedia... .
lycopsoides

Amsonia angustifolia
gusty

herix ns
Androsace occidentalis

Androcera lobata

Anoda hastata
pentaschista

INDEX.
Page.
102 | Astragalus cyaneus............
102 FOOD ei. cose 0
102 机
102 ay
102 ae
109 BE و‎ 1 E مهم اقا‎
102 GO
102 Nuttallianus
102 Sonore
184 tephrodes ...... nae
184 Thurberi
159 — سه‎ di re.
162 VEORIUM — coa ووو مو‎ M eed ع معان ماه‎
163 Ast; ogyne crotonoides
162 | Astrophyllum dumosum.................. دوه موه‎
104 | Alragene al plas. تم یی‎ vows د انهه تا وه سه وډ‎ sane tone
164 chotensis
163 | Atriplex ree ——
163 | Audibert مره‎
164 lystachya ....
164 stachyoides
164 | Avi M Moe ec ne I A
162 | Ayenia microphylla T
164 pusilla
164 | Azolla Caroliniana
164
163
162 | Bacch gustifol
164 GIO VIE امع دن ات‎ cx ceu ea dud Vous di eene
164 brachyphylla سشس‎ c ١١١١ مد‎
164 czerulescens 3
160 تست سس‎ ٨
48 Emoryi
48 pilularis
235 را شش سه ا‎ ce ine cossus du ak
235 1 11
235 salicina
235 sergiloides ....
235 Wrightii
235 Bahia absinthifolia
235 a lia
235 Bigelovii
77 biternata
77 confertiflora
77 ped u
77 rubella
71 trifida
"4 Barteya multiradiata
77 pauciradiata
77 pleniradiata
77 | Barbarea vulgaris
77 | Bartlettia sca
77 | Basella vesicaria. .... ......
77 Basellacez
77 | 284030688 . nc scene اوت ده‎ wena cokers E ERROR veces
78 | Batis Californica 3
55 maritima E.
55 | Battatus littoralis- ee
56 | Bellis integrifoli ۴

Artemisia dracunculoides ....
filifoli

ې ېی یس ی ې ې ې ې ص ې ې ې ې ای أ ې ی رای tn^"‏ """""*

Arthrocnemum „fruticosum
macrostachynum ..........--....--.
Asclepiadacee..-.
Asclepias arenaria ....
o ————

ptentrionale .......-..-- دده‎ er ام تاه‎ cece

er

ومو و و موه

-———

Wrightii ----

INDEX.
Page
30 OO
30 FAO OE aa qe SEs
30 Bromeliacez. ---------。
31 Browallia 二 和
85 | ۰.3 elongsia....-- sincere د‎ ۷ ٢٢٢٣
85 Buddleia ah ع تا‎ E ودد‎
70 marrubiifolia. .... 5
919 ۳866۳6088 as so aaa a
203 860۲0101068 مه‎ .... ec aT
SIS 1 E 17 د ۱ و‎
011 1 هووا هوسو هس ونت د 1111103 لا‎
91 nn تا موم‎
91 Dco Op eg t t M م‎
91 که‎ ciel و ره مس ولل‎ MN EU عه مده ع‎
91 nos
91 platycarpha
FIO-[ و‎ cc دو ل اي ا‎ mU فوح‎ eee
183
909 Cacalia decomposita
171 | Cactacez.-...
171 | Ceesalpina pulcherrima....
172 Cajeput Tree
172 | California Olive....
112 |- Calais 1008181 een ceti cede ود ود‎ quia ices
172 Je o
171 ROR او‎ E iS د مسوم و‎
171 下 او‎
于
172 Ciwlaminthe glabolla.... sepo 22222 rn وه ی یش‎
171 andrinis Mari 4 eres emere گس یدج ی هه‎ REIS.
171 1۳6 62 0۰ هوو ووه‎ E
39 | Cailiachyris Fremontii.
“135 | Calliandra Chameedrys. ..........
84 herbacea.
167 humilis
126 ۳5۱۱۳۵ ماس دد‎ Ll elu سای‎ Soe eee در‎
126 Portoricensis.....
126 | Callichroa platyglossa. ......
126 | Calliproa lutea
156 | Callirhoe involucrata.... ......
79 | Calochortus LOQ هد پمپ‎
70 00121059 و ذه لو‎ ceo وو وو و‎ eus ما‎
81 uniflorus......
134 70136138 oou dao ومس وسو‎ iw ومون د‎
75 | Calophanes linearis...
75 人 人 和
75 Calycadenia Fremontii
75 pauciflora....
75 LITER aS dese we
74 | Calycoseris Parryi......
74 Wrightii =
25. | | و‎ aa conse لماه مه عع ع د‎
75 albida e
74 decumbens wx
75 floribundus. ...... .... wks
74 hrnda...... ~--
75 pilosa. ^ T
74 | Calystegia Mazimiliana......-...-+. مسج معا وود و‎
218 MNA. ces n EE یام سا ی‎

人

sonnn‏ ^" رم ای ي

ورسد و و و عمس و ———-—

"m‏ عنس مسج ماب

pres‏ عراس سرس oot"‏ یي

ووو و او دد پ و و و

"un "^m‏ پ ېی و

wee ای يې أ‎ —— a

eee او‎

اب سدسم يسمه

a...-

عسات سام as..‏

a‏ وار ې ېي ې ای ای

240

ON T OPE
Berula e —
B

foeniculacea

heterophylla

heterosperma..... --

Bignoniaceze

Blitum B

Boehmeria cylindrica.......
Ila

Boerhaavia نه هو‎
ere

اج و سایس

linearifolia

htii....

عماس eee‏ د

olia....
RS
Wrightii

Bouchetia erecta...

Bouvardia hirtella..-......
lobata

Bowlesia lo
Bradburia hirtella.......
rasoria truncata
Briekellia baccharidea
betoniczefolia -

cylindracea. ---

renitorm
Riddellii

Brodiea capitate. aces ع لومم‎ rrr coos cove see Purei

INDEX.
Page. :
148 | Castilleja angustifolia.... .... ...-- s de ca viai د‎ dw
173 : candens *
918 fulgens 5
108 hispida
108 100 898 0 دوه ووه مه سه و‎ E
108 integra. ......
108 lanata....
DUS | د 8ل ١د ده‎
35 r EY
117 purpurea
71 | Ceanothus crassifolius.
35 eatus.
152 iatuB. ....
119 divaricatus ....
118 Greggii
32 obbianus
47 Ward کس‎ be Wa UK A ARE
gsi ovalis....
229 gidu
93] sorediacus
230 SPIRO مسل‎
929 Bt le ١47 à
230 1
229 Mexicana... .
999 pal lida
230 | Celastracesm....
932
932 | tniegryjoha......
999 Mi. pien
229 oocidentalia عد ولاو‎
999 | orthocanthos.....
931 ME,
930 | C entsures Americana.
931 tauridium Drummondi
229 سود‎ Thurberi
930 | Centrosema Virginiana
939 Cephalanthus nenidentalia
932 Cerasus irgiana j
232 | Ceratophy bab wie: نو‎ *
74 | Ceratophyllum demersum
74 | Cercis occidentalis....
74 A 24
205 POAT aa
36 | Cercocarpus Cetulifolius....
59 parvifolius
5 Cevallia ې‎ dias
59 | Chetocalyx Schottii.
59 Wislizeni
59 Chanuzo
59 | Cheilanthes Sibi. ا‎ TE ERE aig
59 aspera
59 Fendleri
59 5 gracillima
59 lanosa
59 Lindheimeri
AQUA ores: cB MERE Lue cs 1
205 DE. S Ll
44 | Wrightii
119 | Cheiranthus asper

Calystegia Soldanello

Campanulaces. ....
Campanula rotundifolia.... ....
perfoliata

Campylocera leptocarpa
Canatilla....
Capparidaces...-
‘apraria muliifida
Caprifoliacece
Capes lla
Capsicum ore E
Carbil

nrea pastoris

leja gegsilifolia
tomentosa....
— MÀ ES وای‎ a>
Halicasabum

Carex 0

Carminatia tenuiflora
Carpliephorus junceus.

Casparia.....
٢۸ E nioides

werista

j wio

Utt das. ROSE ie
Castela Nicholsoni......
Qastilla? fal

31 k

INDEX,
Page.
OF | و و301‎ SUSE ccs scien eee
94 | 0006 intermediates 11-7
94 人
94 Conoclinium betonicum
182 ccelestinum
182 dissectum
182 Cordylanthus filifolius
110 lasHlorus.:.........22 لد ده‎ ees
110 Wrig
152 | Coreopsis copie ums
218 ardaminefolia ......
177 نود‎ SU SS
177 | Corethrogyne "وړ‎ dd
HT I سب - هه‎ Ce کشے‎
TT | OOS HU .را نکمم و‎
177 | Cornus Nuttallii, Audub
93 pubescens
81 | Cowania 56 desk
81 exicana
81 Stansburyana
81 | Cnidoscolus angustidens
8l ichauzii مدد‎
218 DR ی‎
165 | Cochlos em....
165 | Collinsia Ming ES
70 Cologania longifolia r
103 pul مات‎ OIE ا تي ينه ا‎ ae SE
VO F THA Tenia موم سته‎ PEE ete TAPER
和
103 dadalin obovatis foc obo مه هم اه و ری ون‎ EE
103 spathulata
103 onvolvulaceze........----
103 | Convolvulus Californicus .
36 dissectus
229 hastatus
93 Hermannis ....
38 lobatus
38 Nuttallii
29 btusifolius
Cooperia Drummondii
29 peduncülita مد هه ع مج مه‎ edb €
29 | Corchorus pilolobus
29 | Cordia Bossieri ..... ....
99 i .
99 p cephala
35 | Corispermum hyssopifolium ..............-.....-.- a
35 Corydalis anraa
35 | Cosmanthus viscidus
30 | Cosmos bipinnatus
101 | Cotton-wood 3
136 Crassulacexr res
145 | Crepis ambigua . ۰
145 Cressa Cretica ae?
185 Wit. c €
185 | GOristatella Jamesii ی‎
223 | Crocidum multicaule =
993 talari lupulina —
924 aagittalis mL
223 | Croton ti دعاك مال‎

242

Cheiranthus capitatus E

Chenae.is carphoclini

ir rn EN PA EEE EIE ل و‎ M V

Dno a ees توت ,هو‎ tonta: ا‎

— — -

Che p Sse weer neues vesci d M Eus

authehninticum.... عه هده‎ sows Dass Ouen

Chilopsis glutinosa. .... ....
linearis

Chipatane TA

brevicornu

diffusa

fimbriata

اس وه ماه جات 98-۵ 0 ۳۳06
Chrysaetina Mexican‏
Chry:‏

sopsis canescens

CNY 035 00202010002222 همم‎ ae اه موه حم و‎ dite
Chthamalia biflora....

- داد - - 00409110۳0
DOC‏ ها ماد ووو ووه وه او مو د Cie ta O‏
Cirsuim Coulteri‏

m‏ ورا ري

Vi rgini ca

Clematis Drummondii
lasian

و سا

Cleomella augustifolia
longipes
Cocculus E
Coinogyne carnosa
Coldenia canescens ----

Collomia eracilis

grandiflora .... a
Comandra pallida ...-..
ا‎ unbe
ft 1
了 8
py ددد دل ټس‎ rane qr
MN RE
Cres ند‎ o
V. م و و و و و‎ epe بر ووو و مهم و ده‎ LII

Page,

19 15 1:۵ GO go
عن‎ EREN
> uud

ای or ot en OT‏ ایم or or ol oF‏ لان ۷٢‏ ور
٤٣‏ دا 9( (o (9 C3 (9 ٤٢ ١٧‏ 9( 9( 9( 9(

ea
iz

ددد بو و

و مور ...=

ما

INDEX.

Cyperus setigerus ......
speciosus
tetragenus
trachynotus
virens .... P

Dalea albiflora........ 8
alopecuroides E
aurea
argyre
را‎ ۱١ مده د‎ oen bana nte
Emoryi
filiformis .
formosa
frutescens

reggii
Jamesii به‎
lachnostachys

laevigata
T»

—— o

Datili
Datura metel

Daubentonia longifolia
Thurberi

Daucosma laciniatum

Daucus pusillus

Delphinium azureum
Californieum

eardinale ....
coccineum

nudicaule

scopulorum -
Dendromecon rigidum
Desmanthus Jamesii
velutinus ....
Desmodium annuum ----

Page.
11 ٢ 1 و‎ el . 193
capitatum و وون تاه‎ 195

156 41> + ز ز ز ز ز ز ز SEM 1 mnes‏

194 بد تاک تاج nn‏ ود سه عع مو مه TONS‏

glandulosum 196

gracile 195
lidheimerisdun uc iie dare ويا‎ hatte sut 194
1۳8۴۱/۲00 cus. ux ods زرو‎ ces tition مخ مو‎ 195

monan Ms caucus 195, 196
muricatum 195
BRENNEN E داح مه چاه ما ای‎ 196

procumbens ---- مت‎ IO

a O T 194
کم‎ 194

enema cow qum hm oxen 196‏ هه SS doc‏ :هن

C EN مدع‎ necs 196
DERE D T 32

: هټو‎ Barbadensis Shale N adu desc 2 122
V OB دردد عا‎ woes ده‎ eee 106
Cucurbitaceæ 67
Cucurbita digitata 67
و اس بت ين‎ eae eae 67

Cunila glabella 129
Cuphea Wrightii 65
Cup distich 210
Goveniana 211

211

macrocarpa 211
Cupuliferz 205
Cuscuta 151
yelobothia alba 217
NM EN. 12d. مو‎ wean wes عد د قن‎ omes 67
Cymopterus Fendleri 70
ia 70
Cynanchum augustifolium 164
Cynoglossum grande. .... 142
pilosum . 142
Cyperactit = eseon sinna 226
_ Cyperus aristatus- 226
tmp 226

dwi 227

926 وود

dissitiflorus 997
Drummondii 997
filiculmus 227
flavicomus 226

Gatesii .----- 226

gracilis. 5 227

Haspan ..... 227
Houghton 227
lateriflorus 226

227 دد مهد

lutescens 997
Michauxianus .... 226
microdontus - 227
ovularis - 227

=---- 227

repens 327
Schweinitzii 997

INDEX.
Page.
56 25002777744١١١١ SSS
57 | E € Mild EMI مو‎ disso dam SO
57 hretia elli ptica د‎ pin
57 Elaterium Coulteri PAN
70 Wrightii ...... هلاسم‎ a D dis
124 Elatinaceæ
84 Elatine Americana
32 | Eleocharis acicularis
218 arenicola
151 ما ماه په سم‎ sawa E
151 رش‎ s svia d. escas quei EE
151 Elliottii
229 ONDE لل و ع‎ ١ ۶۱۸/٨ cor ٨
125 0 GSES SSS SLES Sa T
125 E مت ا ع ل یسب ی‎
87 PANNE Sais haces ace. rano rro
85 tenuis
72 : ub +}
109 m 110030508 ول ام‎ ISLS
116 Elytraria tridentata
78 ytrospermum Californicum
78 Emmenanthe penduliflora
122 | Emorya sauveolens ........
122 Encelia Californica
34 conspersa .-----
34 Jarinosa
109 nivea
109 ها زر و‎ eos
109 | Engelmannia pinnatifida
48 Engelmannia Nuitalliana
33 Ephedra antisiphilitica ---- -------------- coner
133 | E pilobium coloratu
134 سس و‎ — iT دس و‎
124 dy o ع وو را لد ل‎
124 Eqnisetacess scones
123 TH 4 Soe
124 levigatum ...-... ---------- وو عم نس‎
37 robustum
37 Eremocarpus setigerus
37 Ericaces
97 | Ericameria ericoides...- .----- .
32 Erigeron dem ^ astrum
108 ss 7
108 ee ree J a
- نوی‎ jeg ir
93 divergens
109 Douglasii ېدي‎ bos cii
219 ericoides --
69 eriophyllum won
68 glaucum وا واه وس‎
68 WHBGTATIENUM | اه دم وان دا‎ cece cone ses
142 stum ------------------------ جمد‎
142 subdecurrens ------ QI.
142 | Eriodyction Californicum و‎ A EE
142 crassifolium داد‎ a.o- و و و وه‎ sun- ماه وه و و وه‎
142 | ال‎ oo Too دد‎ cee 4 سو د مب‎
158 | Eriogonum وم ی‎ snas sae 2-4
158 aceto lloides ...--- seed dd dU sees NEC
158 --——— مس وا و وا‎ LE bd woes osou weet موی‎

244

ane رې س‎ emu;

Dichelostemma congestum - FEN
Dichondra argentea
Carolinensis. ......
repens
1 E
Dichromena leucocephala
Dicliptera resupin ata

thlaspoides TN

Dicoria canescens ial
Dicranocarpus parviflorus..........
Diodia teres :

Diplacus glutinosus
Diplopappus ericoides
ا‎ so اظ شم‎
Dipteracanthus nudiflorus
suffrudicosus
Dithyrza Californica
Wislizeni
Dodecatheon frigidum

ere ees sass

regat: Scheidiana EP
a mierantha 2
ی‎ parviflorum
Virgi ainianum
Drejera GENE Le.
jun cea
wibersls
=
Thurberi
Drymaria nen usa
frankenioides

دمه دطخه مو مده ORGS‏

Drye pétahum rancinatum tase
Dysmicodon ovatum
perfoli
Dysodia chrysanthemoides .
porophylloides

Ebenacex

dia tarnifiara

1 پو‎ lanceolata
pulvi rulenta

strietiflora

Echinospermum deflexum
L

osses‏ و و

"m

INDEX.
Page.
176 Eupatorium Parryi
177 Scheideanum
175 serotinum
176 solidaginoideum
176 spinaceefolium
176 Wrightii
176 | Euphorbia acuta
176 lbomarg
175 anceps
176 anguste:. cece oos
175 antisiphilitica
176 enaria
17 Arizonica
176 rkansa
176 barbellata. `
177 bifurcata
176 bilobata
176 bra chycera
176 callibrichoides
176 camp
176 capitellata
176 cinerascen
141 eolorata
141 crenulata
141 cyathophora
140 dentata .....
140 dictyosperma....... ومان او هددد‎ eae nus —
140 dilatata
dioica
eriantha
esulzeformis
cix pulata
Fendleri
florida

وميس عمس و و ewer‏

ومر مر اي

heterophvlla
T ډنپ‎

he

hvnerleifolia
JE

ineauilatera
A

—-— soss

wee‏ موه

Eriogonum annuum
cernuum
ciliatum
cordatum....
cymosum
fasciculatum
gracile
helianthifolium
hieracifolium

amesii

polifolium

trichopodum
vimineum
virgatum

Wright
o

Eritrichium angustifolium.... ....

Chorisianum
: 1

floribundum
glomeratum
heliotropioides ----
Jamesil
micranthum
pusillum
Ses dicm ai
ې‎ 911.

= L4
Texanum

Eryngium diffusum

enworthii......

Wrightii
Erysimum asperum
grandiflorum ....
Erythrina coralloides

200900008 E TE
Eryth rea Beyrichii

chironioides

sees

tricantha ...
Eschscholtzia Californica
Douglasii

CL o . — سا ا فاص‎ m دت با‎ ۲٢۲

و و و و sons‏ وووووی و و سس 7-

本

-—--——"—""—m) umm eee

"m‏ عدت

memes

deltoidea .........

Frasera Parryi
sp eciosa
Fraxinus Berlanderiana ......
cuspidata
dipetala
*
pi staciæfolia
Scheidiana

velutina
viridis
Fritillaria Kamtschatcensis
lanceolata
mutica

Frelichia Drummondii

gracilis
o
Fuirena squarrosa ......

Fumariacez

Gaillardia lanceolata
=

Galaetia canescens

marginalis .......

tephrod es

rightii ....

Galinsoga parviflora
Galium Aparine

مه عم eee‏

suffruticosum ....-..
: Wrightii
Galphimia linifvlia
Garryacec ....
Garrya DM bees
dheimeri

"ue i

Gaultheria Shallon

Stenosiphon virgatus
Eulobus Californicus .......-
Jussiæa repens
eiseleria glandulosa
Gentianacez
entiana affinis
detonsa

sansza

"au"

--—— "n" n"

246

Euphorbia ی‎ IC
yenanthem

radians
revoluta
rupicola

Serpens

errula
stictosperma
tene

villifera
Wrightii
Euphrosyne ambrosiaefolia
Euploca "3111٨
Eurotia lan
Euryptera هب‎

Eustoma exaltat:

د
Evax caulescens‏

Evolvulus alsinoides. ......
nteu

holosericeus
Nuttalianus
ovalifolius

sericeus

Eysenhardtia amorphoides.......

Fagonia nia Californica
Fallugia paradoxa ----

Fendlera rupicola..........-..

Filaginopsis Drumondü...-.....-
multicaulis ...... ..

Filago Californica ...... ....

Filices
Fimbristylis capillaris
cylindrica
spadicea

Flayeria chloræfolia

na

Forestiera angustifolia
ligustri
phill yreoides

reticulata

8211261068108: - - -
Fouqueria splendens
سا وي‎ Chilensis

سه اس بات تب دج ار Frankenia grandifolia...‏

INDEX
Page.
157 uti zia gy I 1
89 microcephala
41 hal
41 ۷
41 Wrightii
118 P ne د‎ triangularis
118 | Gymnosperma corymbosum
118 nad monanthogyma
146 Gyrandra 58
146 Habranthug Andersoni
147 | Halea Texana
147 | Haploesthes Gregg
147 anin tan nimipidnm
146 | Harp p g
147 | Hedeoma dentata
147 acinoides
147 Drummondi
146 incana
146 mollis
146 cata
146 | Hedyvtis acerosa
147 humifusa
146 rubra
146 | Helenium autumnale
147 : phal
146 puberulu m
147 tenuifolium
146 Helianthemum Carolinianum
146 scoparium e
128 | Helianthus angustifolius
51 argophyllus isss واد من‎ weuusaen e اخ‎
- s
53 ciliaris
181 grosse-serratus
181 lenticularis
181 maximiliani
181 petiolaris
165 precoz
165 tephr FOUL eed s
165 | Heliomeris —
166 jenuifolia
165 tide us glabriuseulum...... ... نه‎ hub pude sees
165 molle
160 parviflorum
117 | Heliopsis buphthalmoides
180 canescens
180 parvifolia
33 | Heterospermum tagetinum
81 | Heliotropium angustifolium
81 urassavicum
81 Grezeil
81 inundatum
81 limba tum ‘one
68 parviflorum
91 phyllostachyum ....-.............. ....
42 os: esl
180 — absqguarrosah-------------------------
79 Schottii
79 ۸11 177 اد سه دس‎

> ا
و Geranium‏

androsacea —
aurea
Californica

Gunnisoni.
incisa
INCONSPICUA. ز 1 د‎ sows IS مات شاه اه‎
ongiflora
iz]
lutea
multiflora

multicaulis
۱ ۹ د ک‎

-
polveladon
* LA

Glandularia bipinnatifida
Glottidium Pu num....
Glycyrrhiza

glutinosa
lepidota

Gomphrena cæspitosa
: 0 hb

Gratiola pusilla o
Gossypianthus rigidiflorus

ssc...

Grossulace -—
Guardiola platy. "99 ? واوو موه‎ nO ووه‎ $ sie

m Coulteri

cU T iau "ouam و‎

US و0‎ UR ی ی و‎ a UE Oi" mie ios
ooo.

سم densa‏ تفت اس
Gutierrezia eriocarpa.--... .-...........‏

wae لس‎ e eee

a _‏ ووو وما ووو ای

INDEX.
Page.
100 | Humalus Lupulus
100 Americanus Loon coe
100 | Hydrocharidacee ...........
100 Lh, drocharis spongiosa
99 | H drocotyle natans -----
101 ranunculoides
100 umbellata
100 | Hydrophyllacez
100 | Hydropterid
195 | Hymenatherum acerosum
195 aphaliopsis
195 pentachztum -
195 haetum ..
71 tenuifolium -~
40 Wrightii
116 | Hj 1 87
117 | Hymenolobus divaricatus
117 pube
116 | Hymenopappus corymbosus
117 flavescens
223 luteus
993 Hymenothrix Wizlizeni
85 rightii
81 | H OLYS CONE ومو بات سا ټوا من د‎
81 | Hypericaceze
69 | Hypericum formosum.... ....
69 uleri
69 | Hypolepis Californica........
40 Hyptis lanata
40 spicata
40 | Jacquinia pungens
107 0 7
00 Janipha Leeflingii
58 manihot
58 Yuquilla
98 Janusia gracilis
98 | Jasminaceae
۳" Jatropha Berlandieri
macrormza
45 Janipha
64 multifida
55 | Nisebrum celosoides
95 vermiculatum
65 Indigofera leptosepala
54 ۳ E 5
55 Lindheimeriana
54 Infantea Chilensis... .
54 Ionidium lineare.......... —
55 Ipo Qe. mutata
55 costellata
wa fastigiata
- ات اس تفه‎
54 I".
55 lacunosa
55 leptotoma
55 longifolia
55 muricata
55 Nil
98 orbicularis
98 pandurata

248

Hemizonia angustifolia... ..-..-----
corym osa

congesta, soan - هه مد‎

fasciculata

OPS

multicaulis

ramosissima
yi rga t
Hendecandra multiflora
maritima

Heracleum lanatum
Hermannia Texana
Herpestis chamzedrioides

monniera
migrescens
rotundifolia
Heteranthera gramined .....-...----.----..----. one 5
limosa
Heterospermum dicranocarpum
Heterotheca floribunda :
BUTE شو دوه ووس وو مو تس هدعو‎
11000618 10101310113 هوه 1 ووو ووه‎
parvifoli a
۴۵ 01605010 9 cose ا‎
Hibiscus cardiophyllus....... ...-.-
Coulteri uas
denudatus
Hieracium longipilum.... .... .....-.- ence ee ee دمع ددع‎
iræa septentrionalia......

Hoffmanseggia caudata
Jamesii

melanosticta......

ورس س س راي س سر ړښې nosa‏ ېی سر ای ween‏

Holacantha 71
Hookelia paradoxa
11

osackia 8
د زعي‎ LI

ووو واوو ې

"mm

INDEX
Page
149 Laphamia ss
149 bisetosa ......
149 cinerea
148 dissecta
149 halimifolia ...... موو‎
180 upestri
180 Larrea Mexieana
180 Lasthenia glabrata
216 Last gut
216 patens
23 Lathyrus linearis
999 palustris
999 polymorphus
35 maritimus
205 venosus
905 vestitus
205 Lauracee ....... 5
205 Layia carnosa ....
992 Fremontii
923 heterotricha
222 ود‎ ae pean
223 o-Mexicana
222 p د و‎ eee
223 Lebetina cancellata
993 ,eguminosze
223 Lemnacex
999 Lemna minor
223 polyorrhiza
999 trisulea
223 Lentibulaces ........-......-. :
223 Lepachys columnaris
911 age
210 epiana .....
210 ET phyllanthoides.......
210 Lepidium alyssoides
211 alifornicum
124 intermedium
86 ipes..... :
216 nitidum
42 ام وو‎
42 Leptocaulis na
47 Lep 4 01 1 چو ومد‎
78 Leptosyitó c NEL مه‎ ae
49 tillmanni
40 تن‎ spathulatum -----
49 Leria nutans
49 |. Lespedeza vivlacea
49 | Leucanthea Ræ na
49 phy ambiguum
142 minus
74 Texanum
129 | Liatris punctata...--
165 d
101 Lileacex
101 Li th
127 I hes Dougl
128 | Limnobium spongia
127 Linace2
128 | Linum Berlandieri

wre te و عمسي‎ s.r.

wee eee eee

pene Pes-Capro
Shumardiana
sinuata
tenuiloba
trichocarpa

Treneis

Tresine diffusa 5

vermicularis

E

Juglans olive formis
pyriformis .....
rupestris

Junaceæ

Juncus articulatus serres o rr e

....-

tetragona
i]
Virginiana
y UT IAE. ۴ 4 7

1
Iva dealbata

a

Kallstræmia grandiflora
: maxima

Karwinskia H

anim bellidifolia ..........

ceberlinia spinosa

hata.

riacex. -
Krinitzkia leioc

سب

مدمه وكسومو
fili‏

وږیېیرږی وسوی مسسه او اس و ده

sewers

eee wet eee عمسن موس اس‎ wee

sees

"mm‏ سی وي

ووی soua‏ و وی و موو سوا سا اي

INDEX.
Page.
40 | Lupinus menziesii .........--..-
40 exicanus
40 micranthus
40 ornatus
lil pusillus
79 rivularis .
80 sparsiflorus ....
80 subcarnosus
80 truncatus
80 | Luzula campestris ...... مس‎
80 | Lycium barbanode
80 Berlandieri .... ........
80 llidum وود‎
80 stolidum
"E | ۴00ر‎ uu scene venu
80 | Lycopodium lepidophyllum........
80 rupesire ...-..
127 strutheoloides
127 taxifolium
127 | Lycopus Europzus
127 exaltatus
69 tus
69 Lygodesmia aphylla
155 | Lythraceæ -
140 y DU Lie quas dire
139 | Machwranthera canescens......
140 parviflora......
140 tanacetifolia
140 | Macromeria viridiflora ......
44 Maerorhynchus Californicus ....
66 7 San :
107 heterophyllus
107 Lessingii ..
107 Madia sativa
107 | Madronia ...... x
107 | Malacochete -
107 | Malacothrix Californica
107 ulteri
107 Fendleri
107 obtusa
107 tenuifolia
107 Malpigia glabra
147 Malpigiacez
121 | Malva Americana .... ---- -.-- --
71 borealis مان‎ eus
71 onroana
7l | 58
93 | Malvastrum Americanum......
61 coccineum
66 leptophyllum......
57 Monroanum ......
97 pedatifidum.......
57 'Thurberi
57 | Malvaviscus Drummondii
57 Mansinita
57 ^ g th 1
57 | Marrubium vulgare..........
57 | Marsilea macropoda ......
58 uncina

-"————————

ووسسپ و و مس و و enes‏ پو و و رای مه

"-———————

250

Linum multicaule

Linaria Canadensis

وو وودد ساسا هصرع وول و وغم مد PRONTI AI DOFORCUBR‏
8

TEN

coronopifolia
Er

Drummondii

gracilis

o

eraveolens
e

pulehella
P d
ramulosa
viscidiflora
Wrichtii
Lippia Berlandieri
geminata

lveioides
-

nodiflora
Lithophragma 0 ymbalari ae
h

A eterophylla
Lithophragma prostrata... ...--
Lithospermum breviflorum ....

1 canescens......
DIDA Lee ese
longiflorum
etamorense
Lithraz laurina ......
asace®
(Lobelia) fissa
laxiflora
pectinata --
puberula .
Texensis
Lobeliaceæ ------
Lotelia amcena - ----
landieri
cardinalis ...--.
Cliffortiana

fenestrali
Leeselia glandulosa....
iaceæ

Logani
بو و‎ OMEN Ee AM

involucrata
subspicata

T lia anraa

Lucena retusa

wwe ees swe eens

eee wwe‏ ویوس

--— ween

INDEX.
Page
936 | Monarda Lindheimeri
110 pu auus sonore ess ونود‎ nn
110 1011120188 e —————— هه‎
102 Monardella candicans e
110 odoratissima
111 undulata
47 villosa
31 Monechma Pilosella
31 | Monniera cuneifolia......
53 nina ri g tii
53 onolopia major
85 Montelia tamariscina
85 Moquinia hypoleuca
85 Mortonea Greggii
scabrella
ane 2
pn Morus rubra 0
40 Mozzina canescens 3
cardiophylla -----------------.---------- 3
40 spathulata
30 Mucronea Californica
168 | Mulgedium pulchellum
168 M tes suffruti
163 Myosurus
129 Myri ism ET E ا ت سوت ی اسان و‎
67
67 | Naiadaceae
67 | Naias Canadensis
67 flexilis
159 Nama dichotoma
159 Be ie. الا امد عسوو جک ها هه‎ 5
159 Nasturtium curvisiliqua
129 obtusum
129 palustre
76 j sessiliforum
219 | Navarretia atractyloides ---------------------------
919 Schotti.
61 | Negundo ملو موو ون موو ناك داو و‎ seem اط‎ seas teas
01 ifornic um
60 AT 7
60 Nemastylis acuta
61 geminiflora ..
eo | Nemophila aurita
60 liniflora ----
60 pedunculata - -- "
61 parvij ora
116 Neptunea lutea
Nessa longipes..----- .-----
116 salicifolia
PE- QM sun
116 Nicolletia Edwardsii 53 é
115 Nieotiana nandurata
116 = "am i E
115 Nierembergia viscosa
169 Notochlena cretacea
169 pulveracea ..
169 ٢" a
169 sinuata
121 Nuttalia cerasiformis
132 | 2
133 + LAS 4 Stata

Marsilea vestita ......

Matricaria discoidea- .-----
Maurandia antirrhiniflora — — A Rasa
Wislizeni ..-...
Maytenus phyllanthoides ....
Meconella Californica
Meconopsis heterophylla .-----
Medicago denticulata
SALÎYA ...---
Melampodium cinereum
^ 1 1171-2227 ences که مهوت دهع ده‎
longicornu
Melanthacex
1 coo cp lotos e DEEP
parviflor
Melochia pyramidata
tomentosa

Menispermacee ......
Menodora رو‎ Sidi mia dk ard scd پا‎
longiflor

Mentha canadensis

10900 د‎ 0 We — E

riers
Micromeria Douglasii
Xal apensis
Mekania scandens
Milla biflora
caerulea
Mimosa Berlandieri
biuncifera
borealis
dysocarpa
flexuosa
8 8
Lindheimeri
malacophylla . ae
strigill

Mimulus iu.
dinali

252

INDEX 1
Page，
Nyctaginia obtusa ----+ 170 | Orthocarpus densiflorus.. .... did
TUM اد‎ m CEN EMG NI I 169: erianthus
TOO DEIN Laus وه‎ t enm ده ده مه‎ Ut ee a see.
luteum 152 mac rc. T
Nymph ووا سه سو‎ 31 pupitro s aoo 7 ازس‎
Nymphza ad 31 a i E mena رر مساق‎ Sadr
Ühise arents 182 Osmerrhiza brachypoda FER
TEA iibi وموم ام‎ 1 193 occidentalis
ee ees AT 18 Ox alida "hu" "^mm
canescens 182.183 Oxalis eed "CHR ی بای سیب‎ E اا‎
confertiflora : 183 yua .... TE
elegans 183 dichondrefolia 8
linifolia 184 bE Oe مص ري‎
D occidentalis ---- .... 184 eta اع مایت‎ i ET.
Feo radiata ...... AL دم ووس‎ "٢ TRU erre.
: Ocotillo 103 Wrightii. ....
(Rnothera alhicaniia 65 سو‎ os سبد تج‎ kS د-7‎
biennis 65 gustifolius
bistorta 66 —
brachy 17 REE وو‎ eee al igen! 65 coccineus
cardiophylla 66 glabrifolius ....
ioides 66 glabrifoli
[م‎ 98 66 hirsutus
coronopifolia 65 }
E SET ET mulliflorus ... et ini dee
Hartwegi .... EET 66 | nyctagineus
PO OT کي لعل‎ T تسد يه ېه مخ دد‎ ee پ‎ 65 | ovatus .. ..
WII 66 | بش ی‎ €— -—
inata 65 | Oxyura cl
ی ای ات‎ 65 Pachystima مج‎ shes ووهه‎ a —
primiveris 65 | Paonia Brownii....... M
A ا‎ 65 | Palafoxia مج‎ 5 Mage
. "ge a 65 ookeriana
3 5/722د‎ 65 linearis .....
triloba ..........- 65 ex
مدي م ود حي واه ما‎ Ses BSE جناي زه‎ | Papsveracen
viminea 66 | Parietaria debilis . a d
vinosa يما‎ Seay 66 Floridana
Wüghi........ e ERI 66 Pennsylvanica .
Oldenlandia acerosa ...... 72 | Parkinsonia aculeata 7
MN و ی‎ microphylla
humifusa 79 | Paronychia Jamesii e
rubra .. 729 i ier 22
Oleaceæ 166 ramosissima
Oligogyne Tampicana.----- ------ وو‎ | Parthenice mollis ود‎ E ٢
1 Oli is gl dia 35 atthenium aryentatüm...-...-. SEL وتان دد‎
58 Hysterophorus ......
5 inc m

ramosissimum
Passifloracer
Passiflora affinis ......
feuda uu a
BION 1
tenuiloba
Pavonia Wrightii.
Pectis angustifolia
ieri

"RT a» "^P ^n"‏ ې پږ ې ې ې بر بې چی چس پر ې ې پې ې ې يې ېي چېا

“o --—-

Page. Page.
Pectis prota DM A و‎ eee eee ههه‎ meee eee 5 73 | Peucedanum parvifolium 1 20
(1210795 S TE مح وا حر و‎ ETE Mr TUN š 73 موس سويت‎ Schottii-...... ES مکو همد ود‎ 74
^tm UBM موسر‎ E V soo 141 Phaca Fendleri 56
Pedicularis centranthera........------.-..- ا‎ nie 120 Crotalarie
تین‎ 121 canescens 56
iflora ې‎ 0 Fendleri 56
Peganum Mexicanum 5 42 leucopsis 56
Pellza andromedefolia 233 Sonor ce 56
ی‎ AT لو‎ 5 tephiodes 56
exuosa 233 triflora 56
longimueronata.. . ==. 233 Thurberi 56
mueronata 933 Phacelia ciliata 145
$ ornithopus 233 circinata ---- ۱ 143
T 1s pulchejla .......- z 233 congesta ....-. 143
E-" oa Wrightiana 233 Douglasii —— T
Pentacheta aurea 81 infundibuliformis ..... 144
Pentacrophys Wrightii نه‎ ٧ integrifolia 143
E. E NODES IongiloruN ز 7 ا ی‎ asl Es . 140 10882610118 --ء‎ 143
E Pentstemon ambiguus — yo cM malveeflora 143
E antirrhinoides 115 micrantha ..... ` 14
5 bacharifolius ............ عم موه‎ ۲١" ۹ Neomexicana 143
barbatus - 114 E Ln 144
۱ breviflorus : 115 tanacetifolia 143
EM tranthifolius 115 1 tenuifolia 143
۱ i cordifolius 115 viscida 143 t
CNN cyananthus 114 | Phalangium croceum 220
ge dasyphyllus 112 | Pharbitis heterophylla 149
Do ال‎ 07 114 1 149 :
EC Fendleri 114 | Phaseolus angustissimus ; 50
e gracilis 114 atropurpureus ...... : 50
heterophyllus 115 macropoides 5 50
10 imberbis 114 retusus ---- 49
aai Jamesii 112 Wrightii 49
SFO linarioides 112 | Phelipæa comosa ...... : 110
DEI ; puniceus ....... 113 5-558 serpyllifolius 69
| ; A spectabilis - 113 t Drinit 145
ose stenophyllus .... 112 speciosa 145
115 triovulata ...... 145
ó yi 114 ia arbutifoli " OE رج‎
virgatus 113 | Phyllanthus Carolini |; 9
`. Wrightii 113 | ericoides 193
(Perezia) Thurberi 104 r polygonoides 193
thyrsoidea s 104 Reemerianus ۱ 193
Wrightii 104 | Physalis Alkekengi 153
Perezia nana ^ 104 cardiophylla 153
runcinata : 104 lanceolata 153
Pericome caudata......... 83 lobata l دك‎ E
Periloma .-- 134 longifolia د‎ 153 `
erityle aglossa — ollis 153
. .eoronopifolia . 82 pumila 153
pm 7 82 | Physostegia Virginiana 134
nuda...... sisas 82 | Phytolaccaceæ 184
Patryi -------- 82 | Phytolacca decandra 184
: PODER ی‎ e it e 67 | Pickeringia montana .----- 51
Petalostemon candidum ....... -------------------- 53 | Pilonophytum capitatum ------ (۰ - 195
ae متس‎ vests ممم‎ — 53 | Pilostyles Thurberi 207
ttt ut eeu uere 53 | Pinaropappus Wrightii 106
Poteria scoparia... ee ee eee لمحد‎ cR EE oe 51 : Il as iig 209
Petunia parviflora......... لد دنو سه‎ E سم و‎ 208
eucedanum dasycarpum vans د‎ a Chih: 09
ieulaceum. ............ —— — -- -٧ deflexa ...... 209

ین

NALD‏ بط

"m‏ ووو مو

و وموم ووو

Potentilla م‎ ., 2 ariana a

sanscr ږی‎ sene

INDEX
Page.
209 e camporu
208 hy inse dn sessa
209 hydropiperoides
208 incarnatum
209 nodosum
210 Paronychia
208 P ylvani
209 Persicaria
209 tenue
209 | Polypodium incanum
210 olypremum procumbens
210 | Polystichum muni
209 | Pontederia
44 P us يب‎
43
62 monilifera
109 tremuloides
109 trichocarpa ....
109 Porliera angustifolia
109 | Porophyllum Greggii
109 phal
913 scoparium
913 Portulacaceæ
204 | Portulaca pep ae
204 MODA مدهو‎
205
204
233 natans,
3l pauciflorus .....
31 pectinatus
72
84 glandulosa
84 s paradoxa
109 Thurberi
129 | Prenanthes exigua
35 | Primulaceæ
145 Proserpinaca palustris
147 | Prunus Capollin
215 1 demissa
49 11101109113 بت‎ 8
49 utiflora .....
49 subeordata
49 Virginiana
49 Psathyrotes annua
49 scaposa
:48 | Psathyrotes incisa ----
48 Dal A4 F 23
49 | Psilocarphus tenellus
49 Psoralea esculenta
49 floribunda
48 acrostach
49 orbicularis
49 psycodes
48 | Ptelea angustifolia .-----
48 trifoliata ....
48 Di q "9.
175 atropurpurea ------
220 lanuginosa
178 ifolia
178 | Pterostegia drymarioides
178 | Ptilocalyx Greggii

وروی ری س eee‏ ————— ———

oe

-————— ښ ې ېي‎ se sass soss sass osos ee

254

Pinus Hdgariana
eduli

Pistacia Mexicana
Pitavia dumosa

Pithecolobium brevifolium

Plantago gnaphaloides
ied
Patagonica
Virginica
Platanthera alta ——
ostachys
"net
occidentalis .
racemosa

4 4 4 二
Platystemon Californicum
Platystigma lineare
T ۷ 0 noasta

i24

Pinohen camnphorata
x

Polemonium czeruleum

Polygala hemiptocarpa

Californica
Polvcalaceze
JO
Polveala alba
نس‎

Californica

illata

Page Page
Ptilomeris anthemoides. ل لس 22000 مان داد جع‎ 0005 bes lepanth 68
Pyrropappus Carolinianus 106 malvaceum 68
Quamoclidion multiflorum 169 Menziesii 68
Quamoclit coccinea 148 sanguineum ووو مه من د‎ eee eee ere — 68
Quercus acutidens 207 speciosum 68
agrifoli 206 tenuiflorum 68
chrysolepis 207 | Riddellia arachnoidea......... ——— — 96
cinerea 207 ta ge ina 96
coccinea 206 Rivina levis 184
confertifolia 207 portulacoides 184
crassipocula 207 | Robinia Neo-Mexicana....- nee کا ی‎ TENE <.
dumosa 907 Romneya Coulteri.................--.----. cons .-.. 31
Emoryi .... 907 Rosa blanda 64
dleri 906 gymnocarpa 64
fulvescens 207 Rosaceæ 62
Gambelii 205 Roulinia Jacquini 160
grisea 906 unifaria 160
hastata 206 | Rubiaceae 72
Hindsü 205 | Rubus Neo-M 8 64
100818 2. soe ووو ای ی‎ 205 Nutkanus 64
Kelloggii ...... 205 trivialis 64
8 206 ursinus 64
oblongifolia .... 206 | Rudbeckia fulgida 88
obtusifolia 206 | Runex hymenosepalus 177
oxyadenia. 206 matitimus 178
pungens ...--. 206 salicifolius 178
rubra 205 Rutacez 42
tinctoria 205 Rutosma Texanum 42
undulata 906
virens 206 | Sabbatia campestris ........... ——À— م وماق لاج‎ M 0
Rafflesiaceze 207 Saggitaria calycina --------------------.-----.----- 212
Rafinesquia Californica 106 longilo 212
Neo-Mexi 106 simplex 212
Ranuncul 99 | Salazaria Mexicana.-----.----- dice cina e i sacs مه‎ 133
Ranunculus affinis. 99 Salieacea 904
aquatilis 99 Salix lasiand. 204
Californicus 30 | longifolia 204 Mos
ymbalarice 29 | lucida 204 J
divaricatus 29 Wrightii 204 1
hebecarp 30 Salicornia Bigelovii...--..--..........-..-..--....- 184
وظ‎ 0۶00008084088 E اج ده نما‎ 22 29 mucronat 184
nthu 29 | Salpiglossis prostrata 155
repens 30 Salvia albiflora 131
trachysp 29 angustifolia 131
Raphanus Raphanist 35 ballotzflora ---- 131
۱ 34 breviflora 131
Rliamnacez 45 cesia 131
Rhamnus er 46 carduacea 132
Rhus cop 有 44 EE a ا خخ‎ E EE 132
diversiloba 44 Columbariz 132
laurina 44 | farinacea 131
mierophylla 3 44 | gossypina . 132
oxieodendron........... 44 | lanceolata 131
trilobota 44 | dons 131
virens 44 | mierophylla 131
Rhynch 08 1 1 50 porphyrata 132
Texana 50 pseudo-coceinea 139
Rhytiglossa pedunculosa e -m يده‎ eee 132
Ribes aureum 1 3: ET PEE 131
Californicum 68 im PES 132
ivari e EM 8 71

INDEX
Page
7 AOL
109 ا ا نت‎
109 | 606118119 1/111 SSeS mas وس دم‎ Glas
109 resinosa
196 erosa
۱20۳۲ diedum odüln. فیس مج‎ ices تس‎
70 spathuleefolium ...--........
70 rightii نیرز و‎
70 | Selaginella lepidophylla
185 IEE sini em dece o caia د«‎
92 | Selinocarpus angustifolius
99 chenopodioides. ۲
47 DI ميت دهن دج‎
47 | Selinocarpus diffusus------
901 | S 1
201 00110825 ssec eee
201 CT
109 fasti gi atus
160 filifolius -— ^
161 lobatu n
160 IGHGUODUS SoS See Ln
0 multilobatus...... ----
arryi سس‎
Riddellii
p DICE 2 2.522252 2 SA JA eM
185 1۳3 RIHDOLVIPUEMI I. Qecasdewes dune cuum md uo axe
203 二
69 Epis: 12790018988 واه‎ eua: دی با هی مها مر مکی‎
69 مس‎ ieu eiie
sissimum .----.
. : 和
123 17061651118 WACTOCATPA جات اج جع‎ ee
122 201010101 0010030000833 2ح اه جاح عه د دك د‎ o سدع‎
Seutera ٢77-7 aat Aon urs Ha RU UON oe hee دس‎
317 | Seymeria bipi
96 eig a eec وم‎
96 er :
999 | Sida Eliotdi - 100105-59
ووو‎ filicaulis......
990 OB PP
290 hederacea. ......
999 idota.
293 longipes. ده‎
61 WROTE
918 physo alyx Ed
gjg | Sidalcea humilis .... .................. .... ووهه‎
228 ما م‎ ۹
2
228 Silene pire —
929 Greggii....
228 pulehra......
298 quinquevulhera. === ماه وم دن اه ده و‎
998 Silphium seaberrimum
998 ea. -
929 Simmondsia Californica دنه‎
928 Simsia calva : 区
101 6866118 sves ---
. 9 Er. PEE EE مهم‎
60 tescens یت‎
60 scaposa $

256

Sanicula arctopoides .......--.
bipi natifida
Menziesii ....

nudicaulis

1268186628 -
Sanvitalia Aberti
tragiæfolia ....
Sapindaceze

Sapindus marginatus

Sapium? annuum

salicifolium
sylvaticum
Dene
arcostemma bilobum
clausum
cynanchoides
elegans ——— مرت‎
7 anini P
HEUS HATIIIGEL Le edu که‎ ON bans

Sartwellia Flaverio

Virginiensis
Scheefferia و‎ 011111 EEEE. ae
Schaueria linearifoli
Schistophragma ` i
Schkuhria mnn Io —— ونا ووو هو واه‎ baud

Wrightii
Scl lon Drummondii

° Texanum

Sehenolirion album

Miehauxii
effusa

Schanus ef

a .nhnallara craminifali

Schrankia uncinata...--.

INDEX,
Page.
124 — incana....
33 eae و۲ له‎ E
33 Spilanthes N Nuttalli مچ یناوت اف تاو ای‎
216
916 نن‎ tosa
217 Californica.
217 umosa
217 | Spraguea umbellata.
917 | Stachys agraria.......
917 ز 2 هو لس‎ n اه‎ CST REMO
917 palustris
217 umbrosa
217 Statica Limenium
990 | Stegnocarpus canescens.-----
220 | Stellaria media. ....
151 monchoides fL ee
152 nitens.
151 Stemodia
159 | Stenandrium barbatum......
ibi | Siophiniiorio Mini sss orestes vei iapa
151 Thurberi
152 | Stevia Berlandieri...........
151
ی ا‎ ee
151 micrantha cee
152 ILE. د‎ cuneo همدي انه‎ as دد‎
151 Stillingia sylvatica
152 ANM و و‎
151 | Stiphonia integrifolia....
152 serrata ....
151 | Streptanthus arcuatus. ۳9
159 سم‎ E
1592 001008 سس دو‎
151 和
159 longifolius- -- ا‎
152 petioliril.... تس‎ anke با مهو دع وس‎
152 PICO کت‎
151 | Stromb cinerescens
155 pubescens.
152 Styloclina micropoides
151 | 8567186656 --- -
152 | Styrax Calif
79 neda fruticosa
79 maritima...-
79 | Symphori i
79 rotundifolius.. . .
Synthlipsis Berlandieri
Greggii....-.

Tagetes miecrantha....
Talinopsis frutescens....
Talinum aurantiacum

parvifolium......
fletum...
Taxodium distichum 4
sempervirens. sas ==»
Tecoma stang.-----
Telanthera polygonoides... =- «
Teloxys cornuta...-
Tephrosia this.
Lindheimeri....

و و و و

Siphonoglossa Pilosella-.-------------------
Sisymbrium carescens. .---------------------------
di Horam...

minus

مسج وروی ووو و رای
"^ —"-"""—-—"
او و عمس wee‏
ميس پوم و وه sas.‏
"m‏

سر بعس ټی و mass om om‏ *

Menziesii

riquebrum....
umbelliferum.
TERRENUM. Lll Dlll.cesewemexec Am mds
Solidago angust.

Canadensis

0
Sophora ۵
speciosa. ...
ايا‎ ES وه‎

ېی ای س ې اښ عمس س و و

Sotol

Spergularia rubra

Sp e calycina

angustifolia.... ...‏ ون
Fendleri.... ....‏

33 k

INDEX.
Page.

51 本

205 人

” 84 LT U 1 PEN EE E EP E o
102 heterodon we A O
126 involücratum م‎ 011
125 لط‎ EY e M را ل‎ ton
126 Microdephalumi دو دغه مدع ءا‎ 22092900 099 909
126 physopetalum ..........
126 spmulosüm ---2 aA
135 tridontatum-...:0l4 toe ا دس یقاب و‎ a
135 AROUND
135 1۳۳۱۲۵۳۵۱۵ ۵۵98 دار دب‎ E 1 اد دا‎ ee è

29 Trixis Rs See.

ووو و سه frütescens.‏ 42

42 了 Sus deoecses اپ‎

70 | Tuckermania maritima ......

90 Turritis macrocarpa

90 patula

90 | Typhacew SSS

33 Typha BONES RIESE ETE AEA
109 Tyria myriezefolia

58 Ulmus alata

58 erassifolia ....... ... eddie EE کا‎

31 WEUER ea Se A ese so oe E O OE eto
211 | Umbellifer

40 Uogudi sp تا‎ Sues ue Peau basova 0 3

35 CR

3 Urtica her EIA id

ا agai‏ ی 35

40 WM aT E ا‎ E
215 | Urvillea ال د ل ست‎ derbi E غه ون‎
SEUSS IBD E LOAD E
172 au BA CESS E E e T A
136 | Vachellia Lindheimeri.... .... ...... د‎ eremo- ومغ‎
136 IOS 1 دهت عن‎ nasce ed SE eee

89 091181168 SSL ووه‎ 222220 ee
139 本 人 NO

78 | Varilla Texana ها‎

78 | ies 人
225 | Verbenacew........---- 5
224 Ve بب امد بوس يب لااو دک وی لي دوو پور‎ A EE
224 0110008 SUE E
225 0 AR AR ا‎ ions
226 , Caneteene 222.2. LA -
224 MM. decus vs as DOM PS
200 officinalis ... oe
200 prostrata ---- abs
200 emota ee EE AE
201 | Verbesina podocepbals 222220 2.252. a a
200 capita -
201 Virginica ---
201 micropter thd aan

37 polycephala --

73 | Vernonia Jamesii

97 TERIS D oe E eae
134 Veronica زا‎ €
134 ross ---

99 | Vesicaria argyrea ------

اي E‏ ق 99

54 1068۳۳8 ...... --- >...

54 JE

2158

Tephrosia
اوس ار‎

Hv. يا رر‎ prp تک وم دج لب و و و ات‎ ee
Tetra dymia ramosissima
Tetramerium hispidum .......

و سس مت دا RECN coin‏ -
IO‏

Teucrium ee E ets di rco RE opt:
0 و‎

wm

laciniatum

Thalictrum یت‎

A emer ema ce

b‏ او اه ار په الک ی nee‏ هتا . زار اه

Thaspium montanum.. - -

Thelesperma ورم‎ AN SHOE AEN MUN ISSN كاه سد‎ E
gre

"n
"LA

SENDER ISDROOR- LL. Sans lll III uA
montana

Thlaspi Fendleri
Thuja gigan

sec sadi سه غو رم ولو واه‎ qaia

Tiliaceze
Tillandsia recurvata
eoides

"A

usn
PURSE 2 اا الم اليد‎ LL مد ها ده اد‎ LII.
Tiquilia psum hans Ro do A BE نت‎ v4 aie ad
COMM LL. ween renes ees عد‎ kao Reis
Tithonia ی ودل ل2 د مت اج وسن اس هن‎
amis ی‎

عمس يسع وپور ې د ېي و هه

meee tee و‎

"A

e o" h^: n^" "utr‏ وو مو موو ای

ممعي و و

INDEX. 259

Page. Page.
Vesicaria recurvata — ——À 33 | 101700000016 人
stenophylla Uo 33 | 1300093 د‎ edad uni د مه‎ 203
الا‎ 7 ip ous dae امع دع ذم عو هما مسد مده‎ 49. | Xue 1 013108 وی وعم و معد باه دغه و پوت‎ 80
ER 49 ۱ Xerophyllum tenax سس‎ 222
Vigna villosa ...-.....- 50 | Xymenesia encelioides 92
BRE وت‎ doen I ای مت و وش اس اش‎ 50 Yerba de la Golondrina 187
14010018 و‎ 50 | Yerba de San Pedro 152
Viguera لاد تك‎ ra هنما‎ eel E 89 Yerba Venado 93
laxa 89 Tal 01 8 LL cuero 1 VeRO کچ‎ 221
laciniata 89 angustifolia 920
Vill a chrysanth id 96 baccata 22]
Viola adunca.... 35 | b revifolia rr 221
cos D eric t EC سسمههوسمومممو‎ 36 parviflor 221
obata 35 pls] e جه لاعس ات دب‎ E وس دن وو و‎ 221
longipes 35 ola 221
tonii RU Rm 35 tortifolia 991
E ———— 35 bio مهو هودد‎ E هوو ووو و‎ P 222
E bru سو‎ sped ده‎ aw oie ا‎ o اه اتب‎ EE 35 Zanpichellia palustris... مه ومو‎ ore مو ډور‎ 219
دوو انيد و‎ 45 | Zanthoxylum و‎ ۷0 I NI 43
E ib 45 PON PRICE اه‎ 43
PEE. ios ipeo vede مده دلاو‎ dari ntl مه وسم‎ 45 | Zauschneria praem باس اد هت فر سا مد دب‎ wd woe c و‎ QUE 65
SRA —— ————— Á——M— 45 | Normen Drovilallu Lo does SS E En ETUR ES 92
€ 45 TULABN ELS dudoes does T ووو ات‎ 92
Waltheria detonsa ...... 40 | Zinnia acerosa..... ددع‎ 88
ia 和 88
with hispida ...... 92 ی مت جر‎ 88
Wertgenia hispida ------ $c از دادما‎ E خی‎ 92 DI ———— 88
exana — 92 tenuiflora 83
Wissadula mucronulata...... 39 | Zizyphus lycioides 46
Wislizena refracta 35 obtusifolia...... ... دش نش مهب تساه‎ peewee 46
PAT, TUR ی و‎ a ساخ‎ 155 | 了 46
01090 109 A upseeuels ance sino sees 155 | Zornia tetraphylla 5€
د سس‎ E E E E nme ents 235 | Zygophyllaceæ ------------ 5 فان‎ 42
ee 7777 7 O E ووه نمل‎ 235 ;
-
|
|

DESCRIPTION OF THE PLATES.

PLATE I. CLEMATIS LASIANTHA.—Page 29.
A PORTION OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A perfect flower. Fig. 2. A head of carpels on its peduncle; of the natural size.

PLATE 11. DELPHINIUM.—Page 30.
UPPER PORTION OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A sepal; enlarged. Fig. 2. One of the upper petals; equally enlarged. Fig. 3. One
of the lower petals; also enlarged. Fig. 4. A stamen; magnified. Fig. 5. The three pistils;
also magnified.

PLATE III. DENDROMEEON RIGIDUM.—Page 32.
A. A FLOWERING PORTION OF THE PLANT. B. A PORTION IN FRUIT.

Fig. 1. A flower bud; magnified. Fig. 2. A stamen; more magnified. Fig. 3. An ovule;
still more magnified. Fig. 4. A seed; equally magnified. Fig. 5. The same; longitudinally
divided. Fig. 6. The embryo; highly magnified.

PLATE IV. ISOMERIS ARBOREA.—Page 35.‏ ج
UPPER PORTION OF THE PLANT OF THE NATURAL SIZE.‏

Fig. 1. Plan of the flower. Fig. 2. A flower bud. Fig. 3. An expanded flower. Fig. 4.
A petal. Fig. 5. A stamen. Fig. 6. Cross section of the anther. Fig. 7. A flower from
which the petals have been removed, showing the torus and its appendages. Fig. 8. Trans-
verse section of the ovary. Fig. 9. A seed, seen in front. Fig. 10. The same; side view.
Fig. 11. Longitudinal section of the same. Fig. 12. The embryo. All the figures more or
less magnified.

PLATE V. FRANKENIA GRANDIFOLIA.—Page 35.
A BRANCH OF THE NATURAL SIZE.

Fig.1. A flower, Fig. 2. Transverse section of the calyx. Fig. 3. A flower, with the calyx
and part of the petals removed. Fig. 4. A petal, showing the inner side. Fig. 5. A stamen,
showing the posterior side. Fig. 6. The pistil. Fig. 7. The ovary, divided longitudinally.
Fig. 8. Transverse section of the same. All the figures more or less enlarged.

262 DESCRIPTION OF THE PLATES.

PLATE VI. THURBERIA THESPESIOIDES.—Page 40.
A BRANCH OF THE NATURAL SIZE.

Fig. 1. A flower, divided longitudinally; the corrolla removed; enlarged. Fig. 2. Transverse
section of the ovary; also enlarged. Fig. 3. Fruit of the natural size. Fig. 4. The fruit
enlarged and longitudinally divided. Fig. 5. Transverse section of the same. Fig. 6. A seed,
longitudinally divided and enlarged. Fig. 7. The embryo.

PLATE VII. LITHRZEA LAURINA.—Page 44.

A. A FLOWERING BRANCH. B. A BRANCH WITH* FRUIT: BOTH OF THE NATURAL SIZE.
Fig.1. A flower; enlarged. Figs. 2 and 3. These figures are incorrect, as they do not show
the disk upon which the petals and stamens are inserted. Fig. 4. The pistil; more magnified.
Fig. 5. The same, longitudinally divided. Fig. 6. The ovule; more magnified. Fig. T. A
drupe, with the persistent calyx. Fig. 8. The same, longitudinally divided.

PLATE VII. HOLACANTHA EMORYI.—Page 45.

Fig. l. A flowering branch of the sterile plant. Fig. 2. A branch of the fertile plant. Fig.
3. A branch in fruit: all the figures of the natural size. Fig. 4. A flower bud, from the sterile
plant. Fig. 5. A sterile flower; and Fig. 6. The same, longitudinally divided. Fig. 7. An
inside view of a magnified stamen. Fig. 8. An outside view of the same. Fig. 9. Compound
pistil of a fertile flower; magnified. Fig. 10. The same, longitudinally divided and more
magnified. Fig.11. A drupe, magnified; and Fig. 13. The same, longitudinally divided. Fig.
12. The carpophore.

PLATE IX. CEANOTHUS RIGIDUS.—Page 45.
A, A FLOWERING, AND B, A FRUCTIFEROUS, BRANCH, OF THE NATURAL SIZE.

Fig. 1. A flower; magnified. Fig. 2. The pistil; more magnified. Fig. 3. The ovary; stil!
more magnified, and longitudinally divided. Fig. 4. Transverse section of the same. Fig. 5.
The persistent base of the calyx.

PLATE X. CEANOTHUS DENTATUS.—Page 46.
A FLOWERING BRANCH, OF THE NATURAL SIZE.

Fig. 1. A flower; magnified. Fig. 2. Petal from a bud. Fig. 3. Stamen, from the same.
Fig. 4. Petal and stamen from an open flower. Fig. 5. Pistil and disk; the ovary with three
fleshy protuberances at the summit. Fig. 6. Transverse section of the ovary. Fig. t. Longi-
tudinal section, showing one of the cells laid open, and showing the erect ovule. Fig. 8. A
separate ovule. All the figures more or less magnified.

PLATE XI. CEANOTHUS CRASSIFOLIUS.—Page 46.
A FLOWERING BRANCH, OF THE NATURAL SIZE.

Fig. 1. An expanded flower; magnified. Fig. 2. An unexpanded flower; also magnified.
Fig. 3. A petal and stamen from the same. Fig. 4. Transverse section of the ovary; more
magnified.

ified. Fig. 5. Portion of the ovary; more highly magnified; showing one of the cells
with its contained ovule.

DESCRIPTION OF THE PLATES. 263

PLATE XII. POLYGALA NUTKANA.—Page 49.
A PLANT OF THE NATURAL SIZE.

. Fig. 1. A flower laid open; moderately enlarged. Fig. 2. Sepals; a, the upper odd one; b,
a lateral upper one; c, a wing. Fig. 3. Corolla laid open, showing the stamens; magnified.
Fig. 4. An anther, considerably more enlarged. Fig. 5. The pistil; magnified. Fig. 6. A
capsule divided longitudinally, showing the pendulous seeds, considerably magnified. Fig. ۰
Transverse section of the same. Fig. 8. A seed; more highly magnified.

PLATE XIII. KRAMERIA CANESCENS.—Page 49.
A PORTION OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. Plan of the flower. Fig. 2. A flower bud and bracteoles; somewhat enlarged.
Fig. 3. An expanded flower; more enlarged. Fig. 4. The three upper petals. Fig. 5. The
two lower fleshy and glandular petals; one an inside view, the other an outside view; the last
two figures considerably magnified. Figs. 6-8. Different magnified views of a stamen, (fig. 6
shows the vertical opening.) Fig. 9. The pistil; moderately enlarged. Fig. 10. The same
considerably magnified and divided longitudinally. Fig. 11. Transverse section of the same.
Fig. 12. The ovules, or rather young seeds detached. Fig. 13. A seed; considerably magnified.
Fig. 14. A fruit of the natural size. Fig. 15. The upper part of one of the barbed prickles
of the fruit pretty highly magnified.

PLATE XIV. PICKERINGIA MONTANA.—Page 51.
A BRANCH OF THE NATURAL SIZE.

Fig. 1. The vexillum. Fig. 2. One of the wings. Fig. 3. A keel-petal. Fig. 4. A flower
with part of the calyx and the corolla cut away. The preceding figures moderately enlarged.
Fig. 5. Part of a stamen; considerably magnified. Fig. 6. The pistil, equally maginfied, and
the ovary longitudinally divided. Fig. 7. An immature seed; more highly magnified.

PLATE XV. HOSACKIA GRACILIS.—Page 54.
A PLANT OF — NATURAL SIZE, IN FLOWER AND FRUIT.
Fig. 1. A flower somewhat enlarged. Fig. 2. Separate petals; magnified; a, the vexillum;
b, one of the wings; 6 one of the keel petals. Fig. 3. A seed; considerably magnified.
PLATE XVI. ASTRAGALUS (PHACA) LEUCOPSIS.— Page 56.
A. UPPER PART OF THE PLANT OF THE NATURAL SIZE. B. A PEDUNCLE BEARING MATURE PODS.

Fig. l. A flower with the petals removed; moderately enlarged. Fig. 2. Separate petals;
a, the vexillum; 5, one of the wings; c, the keel. Fig. 3. The stamens and pistil; more mag-
nified. Fig. 4. The pistil with its stipe ; equally magnified. Fig. 5. The ovary laid open;
more magnified. Fig. 6. A very young seed; considerably magnified. Fig. T. Transverse
section of a pod, of the natural size. Fig. 8. A seed; considerably magnified.

204 DESCRIPTION OF THE PLATES.

PLATE XVII. ASTRAGALUS CROTALARLA.!—Page 56.
A. UPPER PART OF THE PLANT. B. A RACEME OF PODS: BOTH OF THE NATURAL SIZE.

Fig. 1. A separate flower; moderately enlarged. Fig. 2. The keel; more enlarged. Fig. 3.
The stamens, with the pistil enclosed in the sheath of filament; equally magnified. Fig. 4.
The pistil detached. Fig. 5. An ovule; pretty highly magnified.

PLATE XVIII. CHJETOCALYX SCHOTTII.—Page —.
A FLOWERING BRANCH OF THE NATURAL SIZE.

Fig. 1. The petals separated; a, the vexillum; 66, the wings; c, the keel; moderately magni-
fied. Fig. 2. Lower portion of a wing; more magnified. Fig. 3. The monadelphous stamens
and the exserted style; ; still more magnified. Fig. 4. Pistil with the cavity of the ovary laid
open; equally magnified. Fig. 5. Flower from which the corolla has fallen; less magnified.
Fig. 6. Immature pod, showing the wing-like termination; moderately enlarged. Figs. T and 8.
Pods of C. Wislizeni, of the natural size. Fig. 9. A seed of the naturalsize. Fig. 10. The
embryo detached and magnified. ۱ |

PLATE XIX. ACAINA PINNATIFIDA.—Page 63.

A PLANT OF THE NATURAL SIZE.

Fig. 1. An expanded flower; considerably magnified. Fig. 2. The calyx, shown separately
and equally magnified. Fig. 3. Part of a stamen; more magnified. Fig. 4. A flower divided
longitudinally, considerably magnified. Fig. 5. The pistil detached and equally magnified.
Fig. 6. An ovule

` PLATE XX. ADENOSTOMA SPARSIFOLIA.—Page 63.
A BRANCH OF THE NATURAL SIZE.

Fig. 1. A flower with bracts at the base of the calyx; magnified. Fig. 2. The same with
the bracts cut away. Fig. 3. A portion of the flower, more magnified; showing a petal and
three stamens. Fig. 4. The pistil; equally magnified. Fig. 5. The ovary of the same laid
open, and exposing one of the ovules. Fig. 6. Transverse section of the ovary. Fig. T.

Fructiferous a with the persistent filaments, eet Fig. 8. The fruit detached from
‘the same.

LATE e ROSA. | GYMNOSPERMA. ورت‎ SR

ERIN | BRANCH or THE NATURAL SIZE.
Fig. 1. A petal; enlarged. Fig. 2. A sta iderably magnified. Fig. 3. Longitudinal

Ht 3 etin of apc showing the pistilsi in 1 the ventricose calyx- fabs: the petals removed; enlarged.
c4 A deta i "ec ongit woes section of the ovary magi’.

DESCRIPTION OF THE PLATES. 265

PLATE XXII. PETALONYX THURBERI.—Page 67.
UPPER PART OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. Hairs of the leaves and stem; highly magnified. Fig. 2. An expanded flower, with
its bract and bracteoles; considerably magnified. Fig. 3. The same, with the petals and
stamens removed; more magnified. Fig. 4. A petal; equally magnified. Fig. 5. Part of a
stamen. Fig. 6. Longitadinal section of the ovary. Fig. 7. The fruit. Fig. 8. Longitudinal
section of the same; the last four figures considerably magnified.

PLATE XXIII. RIBES MENZIESII.—Page 68,
A BRANCH OF THE NATURAL SIZE.
Fig. 1. A flower, with the calyx and corolla longitudinally divided; enlarged. Fig. 2. Limb
of a petal; considerably magnified. Fig. 3. A stamen; the lower part of the filament cut off;

equally magnified. Fig. 4. Transverse section of the ovary; enlarged. Fig. 5. An ovule
detached; magnified.

PLATE XXIV. ECHEVERIA LANCEOLATA.—Page 69.
A PLANT OF THE NATURAL SIZE, (WITHOUT THE ROOT.)

Fig. 1. A flower; enlarged. Fig. 2. A portion of the flower laid open; more enlarged.
Fig. 3. The pistils; magnified. Fig. 4. One of the pistils, considerably magnified and divided
longitudinally. Fig. 5. Transverse section of the same. Fig. 6. A detached ovule highly
magnified. Fig. T. A ripe carpel; magnified.

PLATE XXV. SAXIFRAGA PARRYI.—Page 69.
AN ENTIRE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. Inside view of a portion of a flower; more enlarged.
Fig. 3. A petal and stamen, showing their insertion on the calyx; still more enlarged. Fig. 4.
The ovary; considerably magnified. Fig. 5. Transverse section of the ovary; more magnified.
Fig. 6. Fructiferous calyx; enlarged. Fig. T. A seed; pretty highly magnified. Fig. 8. The
same longitudinally divided. Fig. 9. A transverse section of the same. Fig. 10. The embryo
detached and more highly magnified.

PLATE XXVI. DEWEYA ARGUTA.—Page ۰
UPPER PART OF THE PLANT OF THE NATURAL SIZE.

Fig. l. Fruit, moderately enlarged. Fig. 2. Upper portion of the same, considerably
magnified. Fig. 3. Transverse section of the same, and the position of the petals indicated.
PLATE XXVII. EURYPTERA LUCIDA.—Page 70.

ENTIRE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. A petal; more enlarged. Fig. 3. The fruit; enlarged.
Fig. 4. Transverse section of the same; considerably magnified. Fig. 5. Longitudinal section
34k

266 DESCRIPTION OF THE PLATES

of a carpel in the direction of the shorter diameter; magnified. Fig. 6. The embryo detached
and highly magnified.

PLATE XXVIII. APIASTRUM ANGUSTIFOLIUM.—Page 71.
AN ENTIRE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; magnified. Fig. 2. A petal, (incorrectly drawn.) Fig. 3. A stamen; more
magnified. Fig. 4. A fruit; pretty highly magnified. Fig. 5. The carpophore, with one of the
carpels attached. Fig. 6. Transverse section of the fruit; highly magnified. Fig. T. A seed;
and Fig. 8, the nucleus detached; much magnified.

PLATE XXIX. LONICERA SUBSPICATA.—Page 71.
PART OF THE PLANT OF THE NATURAL SIZE.
Fig. 1. A flower; enlarged. Fig. 2. A berry; equally enlarged.
PLATE XXX. DICORIA CANESCENS.—Page 87.
PART OF THE PLANT OF THE NATURAL SIZE. -

Fig. 1. A staminate flower; considerably magnified. Fig. 2. The same, with the corolla laid
open, showing the monadelphous filaments deprived of their anthers. Fig. 3. A grain of pollen;
highly magnified. Fig. 4. Abortive style of the staminate flower. Fig. 5. A head of flowers;
the two large interior involucral scales nearly concealing the flowers; enlarged. Fig. 6. A ripe
achenium; more enlarged. Fig. 7. One of the scales of the receptacle; magnified.

PLATE XXXI. TUCKERMANIA MARITIMA.—Page 92.
UPPER PART OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A ray-flower; enlarged. Fig. 2. A disk-flower; also enlarged. Fig. 3. Two of the
stamens, their filaments united by one edge; more highly magnified. Fig. 4. The pistil; equally
magnified. Fig.5. An achenium; enlarged. Fig.6. Cross section of the same; more enlarged.

PLATE XXXII. ACARPHZEA ARTEMISRAFOLIA.—Page 95.
THE ENTIRE PLANT OF THE NATURAL SIZE.
Fig. 1. A flower; magnified.
PLATE XXXIII. ACTINOLEPIS MULTICAULIS.—Page 96.
AN ENTIRE PLANT OF THE NATURAL SIZE.
Fig. 1. A ray-flower; magnified. Fig. 2. A disk-flower; also magnified.
PLATE XXXIV. RAFINESQUIA CALIFORNICA.—Page 106.
UPPER PART OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. Grains of pollen; highly magnified. Fig. 3. Achenia;
magnified; a, an interior one; b, an exterior one.

DESCRIPTION OF THE PLATES. 267

PLATE XXXV. NEMACLADUS RAMOSISSIMUS.—Page 108.

A. A YOUNG PLANT WITH RADICAL LEAVES. B. A FULL GROWN PLANT IN FRUIT: BOTH OF THE
NATURAL SIZE. `

Fig. 1. A flower; considerably magnified. Fig. 2. Another view of a flower. (I have not
verified the correctness of this figure.) Fig. 3. A petal; more magnified: Fig. 4. The
stamineal column; equally magnified. Fig. 5. Part of a stamen; more magnified. Fig. 6.
Stigma and part of the style; highly magnified. Fig. 7. Cross section of a capsule; considerably
magnified. Fig. 8. A seed; highly magnified.

PLATE XXXVI. EMORYA SUAVEOLENS.— Page 121.
A BRANCH OF THE NATURAL SIZE.

Fig. 1. The calyx; magnified. Fig. 2. The corolla; equally magnified. Fig. 3. The same,
laid open, showing the insertion of the stamens and the pistil; more magnified. 3a, anther and
portion of the filament; more highly magnified. Fig. 4. Capsule; also magnified. Fig. 5.
Transverse section of the same. Fig. 6. A seed; highly magnified. Fig. T. The embryo; sepa-
rated and still more highly magnified. Fig. 8. Plan of the flower.

PLATE XXXVII. SPHACELE CALYCINA.—Page 131.
UPPER PART OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. The corolla, laid open, showing the stamens and pistil. Fig. 2. The 4-lobed ovary,
gynophore, and lower part of the style.

PLATE XXXVIII. AUDIBERTIA GRANDIFLORA.—Page 132.
UPPER PART OF THE PLANT OF THE NATURAL SIZE.
Fig. 1. A flower; enlarged. Fig. 2. The corolla, laid open and more enlarged.
PLATE XXXIX. SALAZARIA MEXICANA.— Page 133.
A PORTION OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. The corolla, laid open, showing the stamens and pistil.
Fig. 3. One of the superior stamens; magnified. Fig. 4. The inflated fructiferous calyx;
magnified. Fig.5. A nutlet; considerably magnified. Fig. 6. The same, longitudinally divided.

PLATE XL. TRICHOSTEMA LANATUM.—Page 134.
1 UPPER PART OF THE PLANT OF THE NATURAL SIZE.
Fig. 1. A flower; enlarged. Fig. 2. The corolla, laid open and more enlarged.
PLATE XLI. TETRACLEA COULTERI.— Page 134.
A PLANT OF THE NATURAL SIZE. |

Fig. 1. The corolla laid open; enlarged. Fig. 2. The pistil; equally enlarged. Fig. 3.
The ovary; more enlarged. Fig. 4. Transverse section of the same; still more enlarged. Fig.

|
|
.
: 4
d

268 DESCRIPTION OF THE PLATES.

5. A seed; magnified. Fig. 6. The fruit and fructiferous calyx; one of the nutlets removed;
magnified. Fig. T. Inside view of a nutlet; equally magnified. Fig. 8. Transverse section of
a nutlet; back view. Fig. 9. Longitudinal section of the same. Fig. 10. The embryo; equally
magnified.

PLATE XLII. ERYTHRÆA CHIRONIOIDES.—Page 156.
AN ENTIRE PLANT OF THE NATURAL SIZE.
Fig. 1. A flower; enlarged. Fig. 2. One of the divisions of the calyx; magnified. Fig. 3.
Calyx and fruit; magnified. Fig. 4. A seed; more highly magnified.
PLATE XLII. ECHITES MACROSIPHON.—Page 158.
A PLANT OF THE NATURAL SIZE.

Fig. 1. A flower, with the narrow portion of the tube and the calyx cut away, and the upper
part laid open; enlarged. Fig. 2. A stamen; magnified. Fig. 3. The stigma, with an anther
adhering to it; equally magnified. Fig. 4. Longitudinal section of the ovaries; also magnified.
Fig. 5. A placenta, with the ovules attached. Fig. 6. A seed with its tuft of hairs at the
summit; magnified.

PLATE XLIV. ACERATES TOMENTOSA*.—Page 160.

UPPER PORTION OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. One of the pollen masses suspended from a gland of
the stigma; considerably magnified. Fig. 3. A pod of the natural size.

PLATE XLV. A. ASCLEPIAS NUMMULARIA.—Page 163.
A PLANT OP THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. One of the hoods; magnified. Fig. 3. The same, laid
open and showing the horn. Fig. 4. An anther, inside view; considerably magnified. Fig. 5-
A pair of pollen masses attached to a gland of the stigma; more EA mee Fig. 6. A
pod of the natural size.

PLATE XLV. B. ASCLEPIAS MACROTIS.—Page 164.

A PLANT OF THE NATURAL SIZE.

Fig. 1. A flower; enlarged. Fig. 2. One of the hoods; magnified. Fig. 3. The same laid
open. Fig. 4. An anther, seen from the inside; ومو‎ magnified. Fig. 5. A pair of
pollen masses; more highly magnified.

PLATE XLVI. ACLEISANTHES LONGIFLORA.—Page 170.
A PART OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. Upper part of the perianth laid open. Fig. 2. Lower portion of the same. Fig. 3.
A stamen; magnified. Fig. 4. The ovary laid open; magnified. Fig. 5. The fruit; enlarged.

*Incorrectly named Asclepias in the plate.

DESCRIPTION OF THE PLATES. 269

Fig. 6. Transverse section of the same; more enlarged. Fig. 7. The embryo detached. Fig.
8. Side view of the same.
PLATE XLVII. A. SELINOCARPUS ANGUSTIFOLIUS.—Page 170.
AN ENTIRE PLANT OF THE NATURAL SIZE.

Fig. 1. The perianth laid open; enlarged. Fig. 2. The fruit; also enlarged." Fig. 3. Lon-
gitudinal section of the same. Fig. 4. Transverse section of the same; more enlarged. Fig.
5. The embryo detached; equally magnified. Fig. 6. Side view of the same.

PLATE XLVII. B. PENTACROPHYS WRIGHTII.—Page 170.
A PORTION OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A transversely divided fruit from a precociously fructified unexpanded flower;
enlarged. Fig. 2. A fruit from an expanded flower; equally enlarged. Fig. 3. The same; of
the natural size.

PLATE XLVIII. MIRABILIS CALIFORNICA.—Page. 169.
UPPER PART OF THE PLANT OF THE NATURAL SIZE.

Fig. 1. A flower, with its involucre; enlarged. Fig. 2. The same, laid open. Fig. 3. A

fruit, about four times the natural size.
PLATE XLIX. SIMMONDSIA CALIFORNICA.—Page 202.
A. A FLOWERING BRANCH OF THE MALE PLANT. B. A BRANCH OF THE FEMALE PLANT.

Fig. 1. A male flower; enlarged. Fig. 3. The same, with the stamens removed. Fig. 2.
An anther; more enlarged. Fig. 4. The ovary; magnified and longitudinally divided. Fig.
9. An ovule, more highly magnified. Fig. 6. Longitudinal section of the same. Fig. T. A
seed, somewhat enlarged. Fig. 8. Longitudinal section of the same. Fig. 9. Transverse
section of the same.

PLATE L. CELTIS PALLIDA.!—Page 203,
A. A FLOWERING BRANCH OF THE NATURAL SIZE. B. A FRUCTIFEROUS BRANCH.
Fig. 1. Plan of the flower. Fig. 2. An expanded sterile flower; magnified. Fig. 3. A
stamen from the same. Fig. 4. A cluster of flowers, the terminal perfect; magnified. Fig. 5.

Pistil, with the ovary longitudinally divided. Fig. 6. A droop, with the upper half of the

sarcocorp cut away; enlarged. Fig. T. Transverse section of a seed. Fig. 8. The embryo
detached.

PLATE LI. QUERCUS ACUTIDENS.—Page 207.
A BRANCH WITH FRUIT; OF THE NATURAL SIZE.
PLATE LII. PILOSTYLES THURBERI.—Page —.

THE PLANTS, CONSISTING OF SINGLE FLOWERS, PARASITIC ON DALEA SCHOTTII.

Fig. 1. Magnified longitudinal section of a branch of the Dalea, showing the mode of attach-
ment of the parasite. Fig. 2. A fertile flower; magnified. Fig. 3. Transverse section of the

1 Named C. cinerea on the plate.

270 DESCRIPTION OF THE PLATES.

same. Fig. 4. Longitudinal section of the same. Fig. 5. An ovule detached and highly
magnified.
PLATE LIII. PINUS LLAVEANA.—Page 208.

A BRANCH OF THE NATURAL SIZE.

Fig. 1. A mature cone. Fig. 2. The same, with the scales expanded. Fig. 3. A seed: all
the figures of the natural size.

PLATE LIV. PINUS MURICATA.?—Page 209.

A. A RRANCH WITH STAMINATE CATKINS OF THE NATURAL SIZE.
B. A CONE OF. THE NATURAL SIZE.

PLATE LV. PINUS INSIGNIS.—Page. 209.

A. A BRANCH OF THE NATURAL SIZE.
B. A CONE OF THE NATURAL SIZE.

PLATE LVI. PINUS DEFLEXA.—Page 209.
. LEAVES OF THE NATURAL SIZE.
Fig. 1. A cone. Fig. 2. A seed; both of the natural size.
PLATE LVII. PINUS SABINIANA.—210.
A BRANCH WITH LEAVES, AND A CONE OF THE NATURAL SIZE.
PLATES LVIII AND LIX. PINUS TORREYANA.—Page. 210.
A BRANCH WITH LEAVES, AND A CONE OF THE NATURAL SIZE.
PLATE LX. CHLOROGALUM P ANUM.—Page —. 1
UPPER AND LOWER PORTION OF THE PLANT, OF THE NATURAL SIZE.
Fig. 1. A sepal and stamen; enlarged. Fig. 2. Transverse section of the ovary; magnified.
Fig. 3. An ovule; highly magnified.
PLATE LXI. FRITILLARIA LANCEOLATE.—Page 一 一 .
A AND B. BROAD AND NARROW LEAVED FORMS OF THE PLANT, OF THE NATURAL SIZE.

Fig. 1. An exterior sepal; enlarged. Fig. 2. An interior sepal; equally enlarged. Fig. 3.
A stamen; magnified. :

2 Named 2. edgariana on the plate.

-

UNITED STATES & MEXICAN BOUNDARY Botany — Plate 1.

|
1
1
N
‘

CLEMATIS LASIANTHA.

DELPHINIUM CARDINALE

PEZ

BOTANY

UNITED STATES & MEXICAN BOUNDARY

"ON RIGIDUM.

Nor

DENDBROME!

一 一 一 -一

37

UNITED STATES & MEXICAN BOUNDARY

ARBOREA.

XICAN BOUNDARY

de

Botany, — Plat e

i
4

UNITED STATES & M

UNITED STATES & MEXICAN BOUNDARY. Botany, — Plate 5

f N
۱ = M SW
| "A —

1 N r SI N
SN ۱ + TL i | 5 1 4
= NUS, NY i p

dic ل‎ Keys er

FRANKENIA GRANDIFOLIA.

‘

UNITED STATES & MEXICAN BOUNDARY A,

1 |

n

THURBERIA THESPESIODES

۲۱7۲۳۸ ۸ LAURINA

Sy
0

6 ied /

es

E بج‎
نت‎ Bess

BOTANY

XICAN BOUNDARY

١ & ME

7
a

UNITED STAT

۳

ېم

B otany,— Plate

UNITED STATES & MEXICAN BOUNDARY

a
7 7

m 7‏ لیا

HOLACAN THA

1
j
k

j

FI- 9:

BCTANY

0

۸

AES.
Ak

۰ ك‎ NN

Y

:

1

a

| ۲
2 (K
TE

7

UNITED STATES & MEXICAN BOUNDARY

DUK PINT priae
C a: VT : AR

EEG مې‎ ME I a
لړ غه‎ CAS d اخ رېل تبه‎ 1

r^
USER t

AL 1

COS COG
سوب‎ Di SOND
Xx PENNE UI $ ;

Q

3

5

3

raps
2 oe.

بپ

دن

CEANOTHUS 55

Pi ۰

BOTANY

UNITED STATES & MEXICAN BOUNDARY

3
از‎
F^

[ 5!
Pi

t
وس‎ 4

1 ur [n
2 ۷ مت‎ NS و‎ 3
k ۱ A وه‎
NUS 7 iT
eo, ， Lk Ere
NN PIES
EWA Aa va 4
A SNe AN -

e

e

-

Mos:

OX. S
7

۹9

3
用
ES .
M NS

۱

DENTATUS

CEANOTHUS

CRASSIFOLIUS

CEANOTHUS

eS
PA Oa

qe a
JT ۳

UNITED STATES: & MEXICAN BO

x

PELE

BOTANY

NDARY

*
J

UNITED STATES & MEXICAN BOUNDARY Botany, — Plate 12

"cg A OUT

ia ke lua PRAA TSE le ل‎ TA

POLYGALA NUTKANA

UNITED STATES & MEXICAN BOUNDARY ۱ :د و‎ Ple

J UNITED STATES & MEXICAN BOUNDARY Botany,— Plate 15
Ls E

HOSACKIA GRACILIS.

KM

©

1

ASTRAGALUS (PHACA) LEUCOPS

D STATES & MEXICAN BOUNDARY

UNITE

p

UNITED STATES & MEXICAN BOUNDARY : : Botany, — Plate 17

NA DE

iN

Uy A fy
$
Wt

|

O Be c D orate ee‏ پر رې چا

UNITED STATES & MEXICAN BOUNDARY Botany,— Plate 18

CHATOCALYX اه‎

ACANA PINNATIFIDA.

NT AER VE NAT gw ee ~J

19

Botany, — Plate

UNITED STATES € MEXICAN BOUNDARY

UNITED STATES & MEXICAN BOUNDARY . Botany — Plate 20

22 و
A y Gy 7‏
e e‏ / 01
A v9 RM‏ 7 ۱ 7

ADENOSTOMA SPARSIFOLIA. ;

ROSA GYMNOCARPA

03 ضع
e‏

Botany,- Plate

UNITED STATES & MEXICAN BOUNDARY

UNITED STATES & MEXICAN BOUNDARY Botany, — Plate, 22

PETALONYX THURBERI

e

BOTANY

سم
t2‏
:

UNITED STATES & MEXICAN BOUNDARY

سا
C‏
l +‏

^ = /

بش /

SS
A SS
۵

RIBES MENZIESII

ECHEVERIA LANCEOLATA

2
ot.

1

BOTANY

UNITED STATES & MEXICAN BOUNDARY

Botany —Plate 5

ess EMNE‏ حا

SAXIFRAGA PARRYI

UN ITED STATES & MEXICAN BOUNDARY Botany — Plate 26
i ۷ لی و‎ "S
WA yy 1 qw EN
n E | دا‎ T ۷ LY
یر لپ دي‎
Y ۷ ۳۳/2 EN í

۱

1

MAMET

1

1 HAAA / ww
0

1۳: ۷۷ ۳۲ ۲۸ ARGUTA

ITNITE S'TATE 3 1 ٢ m 1 Y
ED STATES & MEXICAN BOUNDARY
حز ۹ اق‎ Botany,— Plate 27

bb 7
n "ur y 2
^

LUCIDA.

2 TO ta
botany.— Flate

UNITED STATES

& MEXICAN BOUNDARY

y 5 تر ق‎ ١ 7
يچ‎ PM WA

VAR SM

m 2 0 Š

5
ga
S

APIASTRUM

ANGUSTIFOLIUM

UNITED STATES & MEXICAN BOUNDARY | Piate
a dao 7
ae
ee
له‎ xk
Jue
(7 ۱ 5 iy
IRA 24
2. 1
LONICERA SUBSPICATA

Bot amy. Plat e 30

W^ -
EN بل‎

UNITED STATES & MEXICAN BOUNDARY `

BOTANY 了

TUCKERMANIA MARITIMA -

UNITED STATES & MEXICAN BOUNDARY Botany Plate 32
" |

UTI
دای‎ . k A W
WR A ۱ X 7 | " | j |
٨ ads 了 c s
W WY

بب مسال

ACARPHAA ARTEMISIAFOLIA.

UNITED STATES & MEXICAN BOUNDARY : Botany,— Plate 23

ACTINOLEPIS MULTICAULIS

UNITED STATES & MEXICAN BOUNDARY Botany,— Plate 34

RAFINESQUIA CALIFORNICA

و و ی ica c So cet es ed‏ سا په من وا

Botany-Flate 35

UNITED STATES € MEXICAN BOUNDARY

و

NEMACLADUS RAMOSISSIMUS

UNITED STATES & MEXICAN BOUNDARY DM Botany — Plate 36

EMORYA SUAVEOLENS

SPHACELE CALYCINA.

Botany, — Plate

31

UNITED STATES & MEXICAN BOUNDARY

UNITED STATES & MEXICAN BOUNDARY Botany — Plate dU

Ld

UNITED STATES & MEXICAN BOUNDARY Botany.-Plate 39

um d -
m ae
mot
—
Qu "

p 0
gE

P
A

SALIZARIA MEXICANA.

ar dos Pica ac وا‎ S me HRS aie

په

Botany — Plate 40 *

TRICHOSTEMA LANATUM

Botany 一 Plate 41

7
UNITED STATES & MEXICAN BOUNDARY
7

QN ۱
شد‎
٩

|

|
M 4 CNIS
AARAA BA bk) ۱
<¥ NN 1i | i ۳ AY
EN FN =
3 7 ae "ai j
3 ۱۳ / A
, Nd m

7 | d سم‎
v Xf ۱ ۱

TETRACLEA COULTERL

UR ITED STATES & MEXICAN BOUNDARY Botan Pi 4. 2
۱ ۱ y, — Plate 2

٩ S ۶ 4 A T 7 ١
' Z ON
۱ | | , n | ۱ 7 / 2

4
7

ERYTHRA.A CHIRONIOIDES 月

ON.

MAGROSIPH

ECHITES

43

.Ptale

Botany,

UNITED STATES & MEXICAN BOUNDARY

JNITED STATES & MEXICAN BOUNDARY Botany — Plate 44

ASCLEPIAS TOMENTOSA

Botany — Plate 45

EA ۲ A
SW
> P

٨۳
A

- 1
l

SL
VY
p 5

& MEXICAN BOUNDARY

6
۱

7
x d

2
۳

peu

UNITED STATES

5

if

z =
SA

C

. Botany— Plate 46

UNITED STATES „& MEXICAN B OUNDARY.

LONGIFLORA.

haha P h

UNITED STATES & MEXICAN BOUNDARY 8 ___Botany,—Plate „AN

SELINOCARPUS ANGUSTIFOLIUS. PENTACROPHYS WRIGHTIL.

MIRABILIS CALIFORNICA

Botany — Plate 48

UNITED STATES & MEXICAN BOUNDARY

49

qo
+
ae
بم‎
|
A
"
2
o
ga
که‎
سيا‎
انس‎
e
تم‎
(x)
f ^ ET
V -
5
d

| 入

GIA

[v

E PIN c‏ د
SAN | "zz‏
٢٢٢ A‏ لحد SA EA‏
SI TAILS PN: Ej‏ —

" : Fa EN 2 EN 2), =
NPW, E

0 e

| هرا

دک

UNITED STATES & MEXICAN BOUNDARY

۱ را‎ Betany,.— Plate 0

UNITED STATES & MEXICAN BOUNDARY . —

uu 8
۱ EN
|

CELTIS CINEREA.

UNITED STATES & MEXICAN BOUNDARY $ Botany, 一 Plat t4

cv. cT c — ی‎

QUERCUS ACUTIDENS.

THURBERI.

PILOSTYLES

e

۳
2

Botany, — Plate

DARY

MEXICAN BOUN

5

m
4

UNITED STATE

PINUS LLAVEANA

————=™™™- 0 7

53

Botany— Plate

UNITED STATES & MEXICAN BOUNDARY
i

Botany — Plate 54

ج
=—

E

PINUS EDGARIANA.

UNITED STATES & MEXICAN BOUNDARY .

١

55

Botany — Plate

NIS.

-
2

PINUS 11351)

UNITED STATES & MEXICAN BOUNDARY

UNITED STATES & MEXICAN BOUNDARY ` Botany — Plate 56
[- r3 | ۱

PPA

اسو
fine ^ ‘aa‏ /

ux O

7
93

UNITED STATES & MEXICAN BOUNDARY

PINUS. SABINIANA. *

PINUS TORREYANA

FA

一

ون

UNITED STATES & MEXICAN BOUNDARY

58

Botany 一 -Plate

con‏ ی د اس تست تسوت ی و رو یسرب

UNITED STATES & MEXICAN BOUNDARY Botany — Plate 60

CHLOROGALUM P OMERIDIANUM.

3 5 á E PE Aa TARAA LE NIC ACA ME Rue NR w E- الريك سد‎ a m سه‎ A
E * ` و‎ * Tw : ۲ d 0 1 qucd Wa Nr P aL Ee ai
۱ QN و‎ ume cu

UNITED STATES & MEXICAN BOUNDARY m ۸ ^. Botany;—Plate 61

M

FRITILLARIA LANCEOLATA.