c RYDBERG, P. A. FLORA OP THE BLACK HILLS OF SOUTH DAKOTA, Contr. Nat. Herb., Vol. III. Plate XVII. Map of the Black Hills. U. S. DEPARTMENT OE AGRICULTURE. DHISIOX OF Ii(n'AN"\' CONTKIBI-TTIONS THE U. S. NATIONAL HERBARIUM, Vol. Ill, No. 8. ISSTTETl .TIT^NrT". 18, 1806. FLORA OF THE BLACK HILLS OF SOUTH DAKOTA. P. A. KVDBKRO. WASHINGTON: govkkn:\i];nt imjintin(^ ofkk^e. 1 8 0 ( ; . ^R9 IHTl-R OP TRAXSMITTAL ii. s. l)epakt3ienr of agriculture, Division of Botany, Wdfihiiu/ton, D. C, Febmary 14, 1896. Sir: I liave the honor to traustnit herewith, for publication as Con- tributions from the United States National Herbarium, Volume III, No. 8, a report entitled "Flora of the Black Hills of South Dakota," by Mr. I*. A. Kydberg. This report is based ui)on a botanical explo- ration made in that region by Mr. Eydberg- in 189^, as a lield agent of the Dei)artment of Agriculture. liespectfully, Frederick Y. Coville, Botcuiist. Hon. J. Sterling Morton, Sccrctari/ of Agriculture. CONTEXTS. Page. Letter of trausniittal iii Itinerary - 463 Geography 464 Geology 464 Altitinles 465 Precipitation and temperature , 466 Floral districts 469 Foothills and surrounding plains 469 Miuuekahta Plains 472 Harney ]\Iouutaiu Range 473 Limestone District 475 Northern Hills 476 (Jeneral remarks 478 Catalogue of species 479 ILLUSTRATIONS. Facinj; pafje- Pi.ATK XVII. Ma]) of the Khick Hills I XVIII. Aquilegia brevistyla 481 XIX. Aquilegia saximoutana 482 XX. I'oa ](seudo])rateusis 532 V FLORA OF THE BLAdv HILLS OF SOUTH DAKOTA. By P. A. Kydbkkg. ITINERARY. On May 2«>, at noon. I left Lincoln by the Burlington and Missouri River Kailroad to spend three months in the Black Hills of South Dakota. A few days before, I had received a commission from the Tnited States Department of Agriculture as an agent of the Divisiou of Botany for the purpose of making- an investigation of the flora of the Black Hills. Up to July 3, I was accomi)anied by Mr. A. E. Wagner, a graduate student of the I^niversity of Nebraska. In the morning of ]\Iay 27 we arrived at Edgemont, where the railroad crosses the Chey- enne Kiver. I availed myself of frequent opportunities to collect along the railroad track. Arriving at Custer, which x)oint was taken as the base of oi)erations, being about the center of the Hills, we remained there until -lune 7, collecting in all directions from 4 to G miles from town: but the number of plants in flower was not large. On July 7 we moved our camp to an artiticial body of water (Sylvan Lake) in the mountains not far from Harneys Peak. On June 10 we returned to Custer and took the tiain for Hot Springs, where we stayed, collecting, till Jnne 21. Then taking the Fremont, 7'^lkhorn, and Missouri Valley . Ifailroad we followed the eastern foothills u[) to Elk Kiver, stopping on ^ the way at the following places: Buftalo Gap, June 21 ; Hermosa, June '" 22 to 24; Rapid City, Jnne 25 to 20; and Piedmont, June 27 to 29. On the morning of June 2!> we bought tickets on the Black Hills and v^ Fort Pierre Railroad to Runkels,but stepped off the train at Jones, mak- ^ ingour way up the remaiinng length of the famous Elk Canyon on foot. We remained at Runkels throngh the next day, removing to Lead City o the morning of July 1, at which point my camp remained till July !». Mr. Wagner set out on his return to Lincoln July 3. From this base I visited the region around Dead wood, July .">; Whitewood, July 7; and Terrys Peak. July S. On the 9th of July. I took the Burlington ami Missouri River Ifaiboad south, stopping at Rochford July 9 to 13, and 4G3 M 464 at Custer July 13 to August 1. From the latter iM)iiit I visited Oreville on 'Inly 17; Sylvan Lake and Ilanieys Peak, Julj' 18 to 21: made a drive ot" 22 miles down French Ci'eek July 22 and 2.'>. and one into the Limestone District near the Wyoming line. .Inly 2") to 30. extending" l)rol»al»ly 30 to 3."» miles northwest of Custer. On Anjiiist 1. I moved my camp to Minnekahta, visiting:- I'rinyle on tbeOth. I then joined a ])arty of naturalists from the University of Xebraska. in whose company I remained for the rest of the season. We cami>ed at Hot Sprint,(>(;v. In order to compare the geological and Moral districts of the Black Hills I give a sumnuiry of the geology of the region derived from the i'ep(»rt by Henry Newton on the Ceology and Besources of the Llack Hills of Dakota.' lU. s. (Jhj.it. iiii.i (J.-i.l siirv..\ Ml til.- K'l.i ky Mountain Region, 1880. 465 Mr. Newton gives a synopsis of the stiiita of the lUack Hills, of which the following is a short abstract: Ages. Feet. strata. Cenozoie : 200 900 Clays imd con-iloiiierates. Clays and shales: sauiislDiie. Cretaceous. Jura 2i)0 Clavs iiinl mails, with smne liiiiestoin-. Red Bed.s 340 Ked day. Carljouit'erous 690 Sandstinies ami limestones. Paleozoic : Silurian (Potsdam) 250 Silicious sandstoues atid loiigloinerates. Archiean ( .') ; ' Slates and schists, with iutfiisive granite. Of these the Mesozoic and Paleozoic strata are resting conformably upon each other, the Cenozoic and Arcluean are not. The Black Hills have been formed by the uprising of the Arcluean rocks, which lifted up and broke through the overlying strata. That this uprising must have taken place after the Cretaceous and before the Miocene forma- tions can be seen from the fact that the strata of the latter do not con- form with those t)f the former. The Black Hills have received their present form bj' erosion. The softer rocks have worn away faster, leaving the harder standing out as ridges or crags. As the center is raised, the dij) of the strata is out- ward and the outcroppings form concentri(; ovals. The Jurassic clays and marls, the clays of the Red Beds and the slates and schists of the Arcluean formation are comi)aratively soft, while the Cretaceous sand- stone and the granite spurs of Arcluean formation are hard. The Miocene formation belongs to the surrounding plains and does not enter the Hills anywhere. The outcrop of the Cretaceous sandstone forms the foothills, and that of the Jura formation and the lied Beds makes the so-called " Race Track," a more or less continuous valley between the foothills and the hills proper. The Race Track is mnch broader on the south side and forms the larger part of the " Miimekahta Plains." On the east side t4ie Carboniferous limestone belt forms a series of hills, and on the west side, where the strata are nearly horizontal, a broad plateau, the "Lime- stone District." As the slates and schist are comparatively soft, the center of the Black Hills is lower, except where the granite or igneous rocks come to the surface and form the highest peaks in the range. Ai/rniDEs. The plains at the base of the Black Hills have an altitude ol" about 1,000 meters. The highest point is the to}) of Harney s Peak, one of the series of granite crags at about the center of the Hills. Its iilti- tnde is given dirtereiitly. The most reliable measurements are without doubt those given by the United States Geological Survey, one of which makes it 7,308 feet, the otlier 7,440 feet, or, respectively, 2,245 4f;G and I'.liiiT nietrrs. Tlie peoj)!*- in tiie neighborhood insist upon callinj;" it 8,01)0 feet. Next in height comes ( h'ooks T(nver, the liighest point on tlie Limestone PUiteau on the west side, with the altitude of 7,;5l'."» feet, or 2,l'32 meters. The altitude of Terrys Peak, one of the igneous cones in the Xortheni Hills, is 7.L'15 feet, or li,2;)0 meters, and Ousters Peak, another igneous cone in that neighborhood, is slightly lower. The general height of the lllack Hills is between 1,000 and 2,000 meters. I'lIKCin lATION AND TE:\irKi; ATT IJE. The i>recipitation of tlie iJiack Hills is very large comitared wirli that of the surrounding country. There are no records of the annual rainfall in that part in which, judging from tlie nature of the flora and the luxuriant growth of the vegetation, the precipitation must be the largest, viz, in the Uarney IMountain Eange. In fact, there aie no records from any ]»lace in the higher ])art of the Black Hills, TnJile-slioiiiii;/ llir tiv(r<(wn, Coin Culorailo Springs, Culo M.4U 1, UO 2 1 , 057 1,150 1,248 1,512 721 2, :,K(i 1,821 187&-«7 1889-91 ^ 1881-84 I 1888-91 1879-91 1883-91 <; 1872-80 \ 18S0-!)1 18(;8-82 1881-9(1 itation of the southern Hills must be greater than that of the northern. For comparison I have included in the table the precipitation of four stations .situated on the table-land between the Black Hills and the liockies, and also of three stations within the liocky IMountain region. It can be seen at a glance that the ccmparison is favorable to the Black 1 1 ills. It would be naturally anticipated that the precipitation would be greater here than on the nearly treeless X)lains, but that it should be so much greater than in the places cited iu the Eockies is more unexpected. It is intimated that the rains from the Gulf of ^Mexico do not reach the Kocky ^lountains, and that the rains in tliat region come from the west. A i>lace situated on the east side of the mountain, as is the case with the three stations given, would receive ver^^ little rain, as the moisture would be combed out by the mountains. Whatever the cause, the precipitation of the Black Hills is greater than that of certain places in the Kockies, as can also be seen from the table. The situation of Colorado Springs is similar to that of Kapid City or Fort ^leadc, and that of ( Jeorgetown or Helena, can be compared witli that of Deadwood, Even on the top of Bikes Peak, which takes away tiie rain from Colorado Springs, the precipitation is not greater tiian that of Deadwood, and T am suie that it would stand low in compaiison with that of the Harney Mountains, if any records had been made at the latter place. 468 Talilc xhowiufj the average tnonthhj inaximnm. mean, and m'niimnni tctnj>iratu res at the Heather linrean stations in the Jllack Hills and the mean ttniperalnre at four .ttaiions on the siitrnnndinij 2>lains. Year. Tempera- tun-. Jan. Feb. Mar. Apr. May. Jnne.l July.! Aug. Sept Dt-ailwiiod. S. Dak. (altitude, 1.411 iiu'tersi. RapiilCitv S. Dak. (altitude, 973 iiie- tt-rs). Fort Mead.-. S Dak. (altitude DlStur- t;is, 1.(1.")" uifters). Fort It oliiii SOD. Xelir. (altitude, l.l.'id lueters). Sidney. Nebr. (alti- tude, l.'J-kS lue- tersi. Fort Fetteriuan, Wyo. 'altitude, ].5i2 lueters). J'ort KeojErli. Mont, (altitude 7".'l me- ters). ) {Maxiniuni .. 5- 57 Sl87K-)^7 JMean 21 S-i ) (Miuiuiuiii.. . — 17 — 16 iiQQi 09 iMaxiunini.. 57 CO (1888-91 >V!^^" fa -w ) fMiiiiinuin.. .| —18 — 2.J ) tMaxiiuuui ..' 53 I 02 ^1879-91 'Mean ; 18 21 ) rMiuiniuui... — 22 —25 '-1883-91 Mean 21 , 24 IS? :^I-='" • 211 26 I ! (1868-82 f^. „ ; ^ I 1890-92 s •"^•'" "* I ^ [ 1878-92 Mean U 10 64 32 3 69 33 2 68 31 -6 34 32 32 r,o 27 84 53 27 85 54 I 27 57 ; 43 53 06 43 55 07 47 56 67 91 05 44 99 71 40 98 71 45 73 91 65 41 100 71 45 100 70 41 74 i 70 74 ' 72 I niaximuni west niininiuni. ! Arer- Great- age est raisge. range. Deaihvood, S. Dak. ,) i.Maxinii (altitude.1,411 1^1878-87 jMeau-. uietersi. J (Minimi RajiidCitv, S. Dak. ) ,ao, gn iMaxii (altitude. 97:! me- >lSaio, 'Mean ters). ^18«8-.tl ^,^,j|j Fort.Meade.S.Dak. ) (altitude of ."-"tur- i [.187'.MJ1 gi.s. 10.i7 meters). ) Fort Ko I) i n son, ' ) Nel.r. (altitfde, [■ ISS.Vitl l.mu meters). |) Sidney, Xel»r.(alti- ) ,a-.,_Qft tude, 1.248 uie- / aorxV Fort Feltprnian, Wyo. (altituile, 1, .">12 meters). Foi t Keoyli, Mont, (altitude-. 721 me- ters) . 1S68-82 (| 18!Hi-92 iMaxinium \\Iean 'Mean l.><7.><-92 Mean.. From tlic ;u-c-oiiii>aiiyiiiii table, also an alt.stract from tlie AVcalher liiircau records, but with tlic Iractions omitt«*f the surrouiMliii.i; jjlains. At Deadwood it is a few dej^rees lower, a decrease of about 1 tle^ree fi»r each 100 meters increase of altitude, and very likely in th«' higher liills tlie a\(Ma.i:e temperature is mueb lower. Tiie maximum heat is reached in August, the average being HKP F. in the Ibothilis and UP V. at Deadwood, but sometimes reach- ing higher, as seen in the table. The minimnm is reached in Febrnaiy or January, being —2.") and — L'3 degrees in the foothills, but only —17 degrees at l)e;nhvood, jnobably on acc<»unt of the more ])roteeted local- itv. 'I'he average ditleieiiee Ix'tween tlie maximum and niiniinum in a 4(59 year or tlie ranjie of variation is given in the tables; so also tlie dift'er- enee between the highest niaximnni and the lowest niinimnni reached during the whole period of observation. FLOHAL DISTRICTS. Relatively to the diiierences in topographical and clinnitie conditions and in vegetation, tlie Black Hills may be divided into tive districts: Footliills, Minnekahta I'lains, Harney Mountain llange, Limestone District, Northern Hills. These districts do not coincide with the outcroppings of the different geological formations. They receive, however, their most prominent physical features frcnn that formation which is best represented within the region, as foi- instance, the IMinnekahta IMains from the Ked Beds, the Limest(nie District from the Limestone Plateau, the Harney Kange from the granite crags. KOOTllILLS 1 AND SCRIK >UM>I NU PLAINS. The foothills are capped by the comparatively hard cretaceous sand- stone. The plains outside the foothills are mostly covered by the overlying- Pliocene conglomerates and clays. In the canyons, along the water courses, and in other depressions the underlying thin Jurassic strata of clays and marls and the lied Beds are exposed. Although the foothills constitute the outcropping of an older formation their tiora is essentially the same as that of the surrounding table-lands, which extend as valleys far in among the hills. The tiora depends more ou meteorological conditions than on the geological formation. As shown above, the annual rainfall at Rapid City, which is among the foothills, is much less than that of the Black Llills i)roper. In fact the conditions are much the same as in western Nebraska and eastern Wyoming. It is a dry region, with most of the rain falling in the spring, and a season of drought in July and August. A majority of the plants peculiar to the high, dry plains of Nebraska, Wyoming, and neighboring States were also found here. Most of these plants are endowed with characters that in one way or another reduce the evapora- tion to a minimum. These characteristic i)lants nmy be divided into the following grou])s: (1) Very hairy plants, in many cases covered with a thick pannose pubescence. Such are: Krioffoninii Jlaniin. >Senecio cainis. Erioiioninn unnuiim. Senecio plattenaiH. IJiio'joinan luiilticepx. Evolnilits VKllollianns. Erioijonitm pancijlorum. Filaijo prolifcra. AstriKjalns f/ilvijlorits. Spies'tu lamberili ni-rkea. Kurolia lanala. Arieiiiisia frigida, Plantago pnrshii. 'The westtTn foothills are in Wyoming. The work wan conliiied to Soulh Dakota, and hence this includes only the eastern foothills. 470 (2) Plants with a gliincous foliage having a hnid ei)i..'( deciuieters in fliaint'ter. • Pl.iiits r.aujjiiif; across tin; coiitiiii'iit or fouiiil as well iu the Mississii)pi \'alley as in tiio liockv Mountains are niostlv omitted. 471 Besides these most of the woody vegetation of the region, as: litis val2)itia, frost grape. r<-'>insyJi'anica, red ash. greeu :isli. Salix cordaia, willow. (^Kerens macrocarpa. bui' oak. Posa woodnii, rose. Salix Jlnriatilis, willow. Ci'Uis occidcntalis, haekberry. Ostnjd virgiiiiami, irouwood. Celastrns Kccuidens, woody bitter- ('ratagus macnintha, hawthorn. sweet. The last two in eaeli eoluuin are local, having been observed only at one station each, viz, at lvai)id (Mty, Hot Springs, Herniosa, and Pied- mont, respectively. The foHowing have f\\. Sulix hehhiaua. willow. Cornus haileyi, dogwood. PopuJus angiittiifolia. black cottou- Bcrheris aquifoUinn, Oregon graj)!'. wood. On the hills: Pivux patiderosd scoptilornin, Kocky Mountain yellow pine. The following woody i^lants may be regarded as belonging to the region itself, that is, to the flora of the high ])lains and foothills: Jiiiiiperiia rirginiaiia, red cedar. Pihes cereiim, s(iuaw currant. Primus deminsii, western choke- Pibes aureum, buffalo currant. cherry. It'oxii arkfuisaiia, prairie rose. Phiis trilohala, skunk Ijrush. As objects of i)eculiar interest seen in this region may be mentioned a shrul) of skunk brnsh, which had stems 3 meters liigli and one deci- meter in diameter, a cottonwood that measured over 0.5 meters in cir- cnmference, l.o meters above giound, and had a branch below that height nearly _! meters around, and another cottouwood on which all the leaves had a cuneate base. Popnivs acinninala was also redis- covered near Hot Springs. l^ifferently from the Black Hills ]»roper the footliills are not co\ered by forest. Some of tliem are crowned by scattered i)incs mixed with a few cedars. The hills as well as the valleys are generally covered Avith gras.s. The i)rin<;ii)al grasses ai'e: lioiitflona oligoilucln/a. JiuUiiiiH darti/loidcx. liinitelonn hirsutn. Carex filifoliu. Koleria rristalK. Aiuhopof/ou xcoiiariux. Calamorilfu linu/ij'nlia . With the exception of the last in ea(;h column the.y furnish good winter as well as summer pasture^. The (tattle and horses generally ''range" the year around, and are often not given any hay except dur- ing snowstorms or other bad weather. The first four jtlants mentioned become self-cured during the dry season and are as good as hay. On 472 accomit of the small raiiitall and tlu' season of droiijiht, farming, as a rule, is not payiii;^" ami the settlers liave been forced to rely on stock raisin^-. Tlie little lia\' needed is cut alonu' tlie streams. The principal hay tirasses are: I'liii'uHin riryaliiiii. .htdrojioijuii iirnriiicialii. Aijropijrtim rejienn ausion of the so-called •'Race Track'" pnxhiced by the outcroi»pin>;' of the Ked r>eds, which is here wider than in any other part of the Hills.' As the vegetation uowheie fully covers the ground the whole landscape receives a pecul- iar reddish color. In tlie northern part the undeilying carboniferous limestone comes to the surface. As the strata are lying comparatively undisturbed in their natural relation, the surface is less rugged than in other parts of the Black Hills, and there is here little ditlerence in surfiu'e condition between the limestone formation and the lied Beds s<»uth of it, except in the color of the soil. The Minnekahta Plains are crossed by the Burlington and ^lissouri Iviver Kailroad from a few miles .south of the Minnekahta station to Pringle, where the road enters the mountain range. The plains are covered with grass and are mostly used as pastures, but part is under cultivation. The region .seems to sutler somewhat from drought. I collected there in August, but found very little of interest. Woody l)lants were scarce. On the hills grew some i)ines, dwarf sumacs or skunl< brush, and sananknient : .lmiiiuiitliii--< hyiliiiili ". Solaiiiim trijloriim. Svtar'm liridix. Siipoiiaria vaccaria. Besi«le the common upland grasses, a few of special interest were collected, vi/ : Poa /ritm})anying the geological sur- vey under Jenney, named "California Joe," expressed himself, "There's gold from tlie grass roots down but there's more gold from the grass roots up." Around Custer, the place to which the first great rush of gold liunters was directed, stock raising or farming seems to be more })rolilable than gold digging. In a meadow near French Creek the glass stood ! meter high. The most common grasses were: J'aniciilarid iifrrata. Calamagrosiis canadensis. At/roslis alba. Calamagrosiis dnbia. I'fxi nemoralis. Agropfirun rcpens glancnm. .Ilojiecnriix genicnlaliiH I'ulvnx. In a slougli 1 found Spartina ci/nn.siiroifJes, licckmannia eruca'/ormis, and ri(nk'uli(ria iplenii(m irkhonuuies. A sp hn i u m Ji I ix-fam in a. Phetjojitcris dryopteris. Woodsia oreyana. Botri/cliiinn matricarUvfolitim? Polypodium ruhjare rottuidalum. rter'is aqiiil'ma. Asplenium septentrionale. Dryopteris filix-mas. Cyatopteris fray His. Woodsia scopiilina. SelayineUa ruptstris. LIiMESTONK DISTRICT. The Limestone District is a high table-land, running from south to north, on the Wyoming line. It is separated from the Harney Eange and tlie otlier hills by a valley. This table-land is the watershed of the Black Hills, giving rise to Spearlish, Eapid, French, and Eed Canyon creeks on the east side, and Eed Water, Inyankara, and Beaver creeks on the west side. The ]»lateau is 1,800 to 2,000 meters high, the highest point, Crooks Tower, being, next to Harney Peak, the highest in the hills. The surface is made up of pine-covered ridges running north and south. The valleys between these ridges are composed of excellent hay land. The region resembles much some parts of Sweden. The l)ine-covere(l hills were here, so also the meadows with the knee-deep grass, and the flowers were in greater profusion and greater variety of color than 1 have seen elsewhere in America. The Swedish species were seldom present, but they had their counteri)arts: Hieracium, Scofzonera, iiudMypocIihir(Ua caHadcnsin. EJcaijnua arijciitta. CcaiiothiiK fendlcri. The Ceanotlius lias liitherto been reported only from southern Colo- ra(l() and southward. Other remarkable plants were: Epilobium hornemanli. Balaamorhiza nayiltala. IJclianthi'Ua (jitnniKcuervis. Frasera spechmu. AxtrtKjaliis vouvallarius. Epilobium dniiinnondii. I'llhia brvweri. Lupinun ncriccun. all irom a more western or southern ranj^e. To me this region looked as i)romisiug as any in the lilaek Hills for agricultural purposes. As said before, the valleys were excellent hay lands. The grasses were about the same as those around Custer. The dryer valleys and the woods would furnish enough of summer pasture. During the winter the stock must be fed with hay as the snowfall is very heavy. Sometime after I had visited the region I heard that this was the i)rincipal reason why many of the si^uatters had left the region. The soil was a black loam contaiDing a considerable amount of lime, the valleys were less rough than those of the parks of the preceding region and could easily be made into lields. NOUTHKKN UlLLS. The Northern Kills, notwithstanding their great height, look more like hills than mountains. Even the highest, as Terrys Peak, Custers I'eak, etc., are covered with woods to the top. The larger part of the region is the northern half of the Archa-au formation. As said before this is comi)osed of (•omi)aratively soft slates and schists. The rivers have worn out deej) canyons, many volcanic eruptions have thrown up cones of igneous rocks, and the remainders here and there of the broken strata of Potsdam sandstone and Carboniferous limestone make the country more uneven. The woody llora resembles that of the Harney liange, Init the piue is more predominant. The elm is lacking in this region and theoiik is <-onlined to the foothills and neighboring canyons. The following shrubs and climbers may be added. Ceanothus uvatuH. J'ibiiniiiin Iculai/o. I'olviitilla fruticomi. Louin-ru hirsuin i/laiircaceus. Vitin rnlpintt. rarlliviiocintiioi qiiiiiqHt/olia. 'i'he whole region seems to have been one large pine forest; but now large tracts are made bare by the ravages of lumbernuMi, niining com- l)anies, (ire, an or 4 miles north of Deadwood. Perhaps some (lerman or Scandinavian gold hunter liad happened to drop a piece of ohl country cheese spiced with the customary caraway seed, and hence the patch. 478 GENERAL REMARKS. From the foregoing can be seen what a varied Hora the Black Hills have. There are found plants from the East, from the Saskatchewan region, from the prairies and table-lands west of the Missouri Kiver, from the Kocky Mountains, and even from the region west thereof. In the footliills and the lower parts of the Hills ])ro])cr the flora is essen- tially the same as that of the surrounding plains, with an addition of Eastern plants which have ascended the streams. In the higher parts the flora is more of a Northern origin. Most of the i)lants composing it are of a more or loss transcontinental distribution but often character, istic of a higher latitude. Some can be said to belong to the Rocky Mountain region. The only trees of Western origin are Pinvs ponderosa scopuhn-um. and IlciuUi occidoitaUs; the others are Eastern or transcon- tinental. The flora resembles therefore more that of the region around the Great Lakes than that of the Rockies. The collection contains a little over 700 Phfenogams and Fernworts. This is certainly far from all that grow in the region. A few more known to occur in the Black Hills could have been added to the list, as for instance, Mentzelia oUgoHperma and lli/santhes gratioloides, col- lected by ]\rr. A. F. Woods; Onoclea .seusibiJis and Aster salsugiiioshs, by Prof. T. A. AVilliams; Fritillaria linearis, by Miss I'ratt, of Piedmont; and Sorbus sambueifoUa, by Mr. Runkel, the owner of the sawmills at Runkels. Viburnum prunifolium was also reported by a physician of Custer, but i)erhaps V. Icniugo was mistaken for it. A squatter told me that he had cut hickory poles on the Squaw Creek, a statement which seems doubtful. Jenney, in his report on the Geological Survey of the lUack Hills, reports the black si)ruee and mulberry as growing in the hills. The former probably was confounded with the white spruce, and the occurrence of the latter needs veriflcation. To the following botanists acknowledgements are due for help in the determination of the species. The Carices have been determined by Prof. L. H, T'ailey, the genera E])ilobium and Gayophj'tnm by Dr. William Trelcase, Polygonum by Mr. .1. K. Small, Salix by Mr. M. S. Bebb. The determinations of Juncacea*, Graminea', and rmbelliferaj hav(; been verified by Mr. I'>ederick V. Coville, Prof. F. Lamson-Scrib- ner, and Mr. J. N. Rose, who have also made a few corrections where ncc(led. The desciption of Poa pseudopratenHiii is drawn by Professor Scribner. In the identification of the collection, the plants have been compared with sjiocimens in the Natioiuil Herbarium and tlic herbarium of the I'niversity of Nebraska. Thanks are also due to Prof. N. L. Lirittou, of Columbia College, and Prof. John Macouu, of Ottawa, Canada, for tlie loan of specimens for com])arison.' 'Tlio :ukn.33 (17r)3). Limb of the corolla shorter than tlu- sjxir and fin- stamens; Mowers blue, red, or white. Escaped from gardens. A. Ki.AVEScKN-s Wats. Bot. King. Siirv. v. 10 (ISll). Limb of tiie corolla of the length of the s]tur but shorter than the stamens; 482 On dark, wooded hillsides; rare: Little Elk Canyon, altitude 1,200 m., June 28; Oreville, altitude 1,650 m., July 16 (No. 503). Delphinium bicolor Nutt. ; Torr. it Or. Fl. i, 33 (1838). Varial)l(\ In tin' rollection tin re are three forms, which probably belong here. One is 1 toGdni. hiiih, with most leaves near the base, more or less glandular-pubescent throughout, oven to the pods. Custer, altitude 1,650 m., .lune 3, Aug. 1 (Xo. 504). Another l"orm is like this, but perfectly smooth and with thinner sepals; in some specimens the Uowers are purplish pink. Kunkcls, altitude l,3()0m., June .30 (Xo. 505). The third is a tall form 7 to 10 dm. high, glandular-pubescent, and with broader, more jioiuted divisions to the leaves. It is the same as I), menziesii utahense Wats.' Elk Canyon, altitude 1,200 m., Jun^ 29 (No. 1205). Aconitiim fischeri Reich. Monogr. Gen. Aeon, i, 22 (1820). The couuuou American form is a tall plant, generally 1 to 1.5 m. high, robust, pubes- cent, and viscid. The divisions of the leaves in my specimens, as well as in some corolla yellowish, sometimes tinged with rod or blue. See M. E. .Tones, loc. cit. In the Wasatch Mountains from Utah to Uritish America. b. Style in fruit 5 to 7 mm. long. A. BREVISTYLA Hook. Fl. lior. Araer. i, 24 (1829); Torr. & Gr. Fl. i, 30; AValp. Rep. i. 51, etc. (Some of the other references in Wats. Bibl. Index, p. 6, may belong here, as A. vuhjaris? Richards. App. Frankl. Journ. 740). Stem 4 to 10 dm. high, simple, pubescent, or glandular above, especially on the peduncles and flowers; root leaves 2-ternate on stout petioles; stem leaves diminish- ing upward, often ternate and short-jtotioled or the upper simple, 3-lobed and sessile; pedicels stout and recurved; sepals blue, acute; limb of the petals yellow- ish tchile, lontjer than the hlne, curved spur and the stamens; ovary pubescent ; pod 2 to 2.5 cm. long, reticulate and glandular-pubescent. Western Canada, Red River Valley (?), and the Black Hills. Specimens seen: Canada, Morley (Albertina), 1885, John Maconn; McKenzie River, Louis Anderson; South Dakota, No. 503 of this collection. B. Stem 0.5 io 2 dm. hit/h, suhceapitose. a. Style in fruit about <>.'< cm. long. A. SAXi>ro>rT.\N.v Ryd]»erg; Gray, Syn. Fi. i, ]>t. 1, 43 (1805); A. vulgaris hrevistyla Gray, Amer. .Fourn. Sci. ser, 2. xxxiii, 410, and Proc. Acad. Phila. 1S63. 57 ( 1863), name only; Porter, Port. iV Coult. Fl. Col. 4 (1874), description: ./. hrerintyla Coulter, Man. Rock. Mount. Reg. 10 (1885) ; .Jones, Zoe, iv, 258 (1893). Pl. XIX. Stem 1 to 2 dm. high, densely tufted, scarcely exceeding tlio loaves, perfectly smooth; leaves twice-ternate, all on slender i)etioles thin, the u])per a little smaller; le.itlots 8 to 15 mm. long, with long petiolules, pedicels slender, upright; sepals greenish and obtuse or blue, and acute; limb of the petals yellow, longer than the blue, curved sjtur. and tlii' stamens .and ])isfils; ovary smooth: ])od 1.5 to 2 cm., smooth. Rocky Mountains of Colorado. Specimens examined : Colorado, Dr. James (labeled A. ca-rulea, var. f) ; 1861, C. C. Parry, No. 90; 1862, HalKV- Harb(mr, No. 23; 1869, Sco- ville ; Argentine Pa.s8, 1878, M. E. Jones. No. 875; Gray's Peak, 189.5, P. A. Rydberg and C. L. Shear. b. Style in fruit about 1 cm. long. A. .loxKsn Parry, Amer. Nat. no. 8, 211. Cespitose, 0.5 to 1 dm. high; leaflets about 0.5 em. long, nearly sessile; spur nearlj' straight. Rocky Mountains of Wyoming and Montana. I Bot. King. Surv. 112 (1871). Contr. Nat. Heib., Vol, 111. Plate XIX. AQUILEGIA SAXIMONTANA Rydberg. 483 from Colorado and Wyoming, are much narrower than in those from the Pacific Slope. Near Terrys Peak, altitude 1,900 m., July 6; Rochford, altitude 1,700 m., July 12 (No. 506). Specimens, collected among peat moss, below Sylvan Lake, 4 miles south-southwest from Harnevs Peak, altitude 2,000 m., July 18 (No. 507) are much smaller, 3 to G dm. high, slender, few-flowered, less pubescent, with finer lobes to the leaves and bluer flowers, the hoods of which are more semicircular in outline. Actaea spicata rubra Ait. Hort. Kew. ii, 221 (1789). Professor Greene regards this as specifically distinct from A. gpicaia. Perhaps it is so, but the characters pointed out which are to separate A. spicata from A. rubra are not constant, at least in Scandinavian specimens of the former. Even the fruit is sometimes bright red in them. Rare: Elk Canyon, altitude 1,200 m., June 29 (No. 508). Actaea spicata arguta (Nutt.) Torr. Pac. R. Rep. iv, 63 (1856) ; Acta'a argufa Nutt. ; Torr. & Gr. Fl. i, 35 (1838). This often has the fruit white and much larger and more elongated than in the red- fruited variety. Perhaps they are distinct, but I could not find any other character that would separate them. Little Elk Canyon, altitude 1,100 m., July 18; Custer, altitude 1,650 m., August 15 (No. 509). BERBERIDACEiE. Berberis aqmfolium Pursh, Fl. i, 219 (1814); Berheris repens Lindl. Bot. Reg. t. 1176 (1828). Without doubt this is the original Berheris aqui/oUum Pursh, and Lindley made a mistake when he supposed that the name belonged to the taller species of the Colum- bia River basin. Lindley's statement that Pursh's drawing was made from Menzies's plant, that is, the B. aquifolium ' of Hooker and of Lindley, is evidently wrong, as Pursh does not cite Menzies as having collected it. The plate was made from a specimen of Lewis's collection, and it as well as the description shows that the plant belongs to what has been known as B. repens Lindley.- Sweet, in British Flower Gar- den, says: '"Mr. Lindley's observations on B. aquifolium are wrong; the A'cry speci- men figured by Pursh is now in his herbarium in Mr. Lambert's collection; the name B. repens published in the Bot. Reg. must therefore be disused." In canyons: Hot Springs, altitude 1,100m., June 12; Little Elk, altitude 1,200 m., June 28 (No. 510). PAPAVERACEiE. Argemone alba Lestib. Bot. Belg. ed. 2, iii, 133 (1799); A. alhiflora Hornem. Hort. Hafn. 489 (1813-15).' In draws among the foothills. Hermosa, altitude 1,025 m., July 24; 15 miles east of Custer, altitude about 1,400 m., July 23 (No. 511). FUMARIACE.a3. Capnoides aureum TWilld.) Kuntze, Rev. Gen. PI. i, 14 (1891); Corj/dalis aurea Willd. EuiiiM. 710 (IXOit). Rare: Elk Canyon, on the railroad emb.inkment, altitude 1,200m., June 29 (No. 512). 'This must take the name Berheris nutkann (DC.) Kearney, Trans. N. Y. Acad, xiv, 29 (1894); Mahonta aquifolium nutkana DC. Syst. ii, 20 (1821). '^One leaflet iti Pursh s figure (fig. 1) may belong to />'. aquifolium Hook.; at least this was Watson's view. ' See my notes, j>. 149 of this volume. Mr. Prain has shown (Jouru. P.ot. xxxiii, 329) that /'. albiflora is antedated by /'. alba. Both are based on speciniejis I'roni the Southern States. Mr, Prain thinks that the plant of the Western plains is distinct, and names it A. intermedia. I can not, however, find any constant character that will separate the two. 484 Capnoides curvisiliquum (Engelm. ) Knntze, Rev. Gen. PI. ii, 14 (1891) ; Corydalis curviniliquu Kngcliii.; dray, Man. oil. ;">, 62 (1867). This i.s not uiicDiumon in tlie lUack Hills: Sylvan Lake, altitude l,90(t in., .June 8; Hot Springs, altittulc 1. ().")() ni., .June 13 (No. 513). NYMPHiEACEiE Nymphaea advena Solaml. in Ait. llort. Kew. ii, 226 (1789). Leaves of this spe- cies were .«een in Kapid Creek, 6 miles above Rapid City, bnt no specimens were secured. CRUCIFERiE. Draba carolinana micrantha (Nntt.) Gray, Man. ed. 5, 72 (1867) ; Draba micrantha Nutt. ; Torr. & Gr. Fl. i, 109 (1838). Barren hills, rare: Hot Springs, altitude 1,100m., June 13 (No. 514). Draba nemorosa L. Sp. PI. ii, 643 (1753). The specimens of Hi is collection are pubescent even to the pods, and may belong to the variety hehecarpa Lindl., but the hairy form has been regarded, by Do Caudolle and others, as the typical J), nemorosa L. Early in the spring: Custer, altitude 1,650 m.. .June 1 (No. 515). Draba aurea Vahl. in Horneni, Fors. Dansk. (Econ. PI. ed. 2, 599 (1806). My specimens diftcr from the common form in being more slender, and in having entire, thin leaves, smaller, paler petals with more slender claw, and longer, decid- edly twisted pods. The peduncles and pedicels are ciliato and the sepals narrow. I took it for the variety stylosa. It resembles somewhat the original specimens of this, from Fendler's collectiou; but the pods are much longer and the style shorter. I do not wish to give it a A-arietal name, as I have specimens from only one locality. In a shady jilace, at the foot of a high cliff, below Sylvan Lake, altitude 2,0(X) m., July IK (No. 516). Arabis glabra (L. ) Heruh. Verz. Sy.st. Erf. 195 ( 1800) ; Titrrith glabra L. Sp. PI. ii, 666 (1753). Rare: Along the railroad in Elk Canyon, altitude 1,200 m., .June 29 (No. 517). Arabia hirsuta (L. ) S. PI. ii, 666 (1753). ('ommo(is .are a little curved :md rellexod. Connnon: Custer, altitude 1,650 m., .Iiino5; Elk Canyon, altitude 1.200 in., .hine 29; Lead City, .iltitiidc l,.-.0() m., .July 6 (No. 519). Arabis holboellii retrofracta ((Graham); Arabia retrofracta ^\vn\v.\n\. I'.dinb. Phil, .lonrn. 344 (1829). The latter has generally been regarrairie, 1 mile east of Fall Kiver Falls, altitude -1,000 m., June 18 (No. 521). 485 Erysimum asperimi (Nutt.) DC. Syst. ii, 505 (1821); Cheiranthus usptr Nutt. Gen.ii, 69 (1818). Hot Springs, altitude l,Or)0 m., Juno 14; Hermosa, altitude 1,0U0 m., June 23; Rapid City, altitude 1,000 m., Juno 26 (No. 522). A form with slender, twisted pods was collected on the hills north of 1 )ead\vood, altitude 1,500 m., July 5 (No. 523). Erysimum cheirauthoides L. 8p. PI. ii, 661 (1753). Hut Springs, altitude 1,050 m., June 14; Rochford. altitude 1,050 in., July 11 (No. 524). Erysimum inconspicuum (Wats,) MacMillau, Metasp. Minn. Val. 268 (1892); Jirysimum asperum inconspicuum Wats. Hot. King Surv. 24 (1871). This resemhles very much E. vi)(jatu7n Roth of Europe, and perhaps is only its American form. It was growing together Avith /:,'. asperum and E. cheirantholdcs, and in the field it seemed as if possibly it might he a hybrid of the two. In jiubescence, color, and form of the llowers, and fonu of the pod it is more likfe E. asperum: tlie general habit is that of E. cheiranthoidcs, and the size of the flowers intermediate between those of the two. Hot Springs, altitude 1,050 m., June 13 (No. 525). Sisymbrium pinuatum (Walt.) Greene, Bull. Cal. Acad, ii, 390 (1887); Erysimum pinuatum Walt. Fl. Car. 174 (1788). This is very variable. Some specimens are more or less canescent and have the seeds plainly in two rows (No. 526) ; others are smooth or, on the upper parts, glandular and have the seeds apparently in one row, characters that should belong to rin,us, altitude l.lOo im., June 11 and August 3 (No. 533). Lesquerella spatulata s]). uov. Low and somewhat ca-spitose; stems 3 to 10 cm. high, subscapose; leaves all radi- cal, spatulate or oblauceolate, decurrcnt on the petiole; jJetaJs sjiatulate, j^ellow; pods on recurved pedicels, ovate, only slightly compressed toward the apex, finely pubescent, i-seeded; septum not perforate; style scarcely as long as the mature pod. Like the last in habit, but lower. The pod, however, is ovate, ]>ointed, and slightly comi)ressed toward the apex, about the length of the slender style but shorter than the i)edicel, which is rellexed and tlien curved upward. The plant is somewhat intermediate between L. montaiia, tlic preceiling si)e(i('s, and L. alpiiia. I'rom L. moiittuia it dilVers in its more slender habit, narrower leaves, and smaller pods; from L. uJpina, in being much taller and in having broader leaves, less coiu- pressed jutds, longer and recurved pedicels, and shorter stj'le. In /-. aJpiua the style is longer than tlio pod, the pedicels erect, and the septum perforateil. It ditlers from L. argentta arenosa in the form of the pod. Similar specimens were found in the Harvard Herbarium, viz, in C. C. Parry's collection of 1873 (No. 21) and in the collection of Jenuey's expedition, 1875. These were referred to L. alpina by Dr. Watson. In the Columbia College herbarium there are tlie following specimens: H J. AVebber, from Belmont, Nebraska, 1889; Dawson, Milk River, N. W.T., 1883, Dry hilltop, north of Deadwood, altitude 1,600 m., July 5 (No. 531). Cameliiia sativa (L.) Crautz, Stirp. Austr. i, 18 (17GL'); Myagnun nativuin L. Sp. PI. ii, 641 (1753). Introduced: Railroad cuibankment above Custer, altitude 1,700 m., July 15 (No. 535). Bursa bursa-pastoris (L.) Weber in Wigg. Prim. Fl. Hoist. 41 (1780); Thlanpi hur- sajiasloria L. Sp. PI. ii, 647 (1753). The common form was collected iu yards at Custer, altitude 1,625 m., .June 4 (No. 536). The so-called variety iniegrifolia, that is, the form with entire leaves, was collected on a hillsiearance reminds (ine scuuewhat of I'eca- dulia niidUaitUa. Hillside, south of Custer, altitude l,6l.'5 m., May 28 (No. 538). Lepidium iucisum Roth, Neue Peitr. i, 224 (1802). Rare in the Ulack Hills: Hot .Sjjriugs. altitude 1,0.50 m., .huie 16 (No. 539). CAPPARIDACE^. Jacksouia trachysperma ( I'orr. A: (Jr.) (Jrecue, I'ittonia, ii, 175 (1?uberulent ; the ui)per leaves lanceolate, short, strongly 3-uerved. Shady place among rocks, below Sylvan Lake, altitude 1,IH)0 m., July 18 (No. .5t}7). Paronychia jamesii Torr. & Gr. Fl. i, 170 ( 1838). Dry hills: Hot Springs, altitude 1,100 ni., .lune 13; Hermosa, altitude 1,100 m., Juue23(No.959). PORTULACACE^. Talinum parviflorum Nult. ; Torr. A: Gr. Fl. i. 197 (1838). Among recks, on the south side of Buckhorn Mountain, north of ( iister. altitude 1,700 m., July 15 (No. .".09). 'Bobiusou, Proc. ^Vmer. Acad, xxix, 278 (1894). 489 Claytonia perfoliata amplectens Greeue, Fl. Fran. 179 (1891). It is smaller than the typical C. perfoliata, has smaller flowers ami shorter pedicels; the involucral leaves united only ou one side. It has been collected by i)r. Vasey, iu the State of Washington, and by C. V. Piper, near Seattle, same State. Hills, near Whitewood, altitude 1,200 m., July 7 (No. 570). HYPERICACEiE. Hypericum cauadense L. Sp. PI. ii, 7S5 (1753). Low grounds, north of Custer, altitude 1,700 m., August 20 (No. 572). MALVACEiE. Malveopsis coccinea (Nutt.) Kuutze, Kev. (ien. PI. 72 (1891); Malva roccinea Nutt. Fraser"s Cat. (1813). Hillside, above Hot Springs, altitude 1,100 m., June 14 (No. 580). LINACEiE. Linum lewisii Pursh, Fl. i, 210 (1814). Hillsides: Hot Springs, altitude 1,100m., June 14; Elk Canyon, altitude 1,200 m., June 29; Koehford, altitude 1,700 m., July 12; Custer, altitude 1,700 m., July 15 (No. 581). Linum rigldum Pursh, Fl. i, 210 (1814). Kare: Hot Springs, altitude 1,100 m., June 15 (No. 582). GERANIACEiE. Geranium richardsonii Fisch. & Mey. Ind. Sem. Petrop. iv, 37 (1837). The most oonnnon species iu the Black Hills. The flowers are nearly always white or light pinkish with purple veins. Valleys: Elk Canyon, altitude 1,300 m., June 29; Rochford, altitude 1,600 m., July 11; Sylvan Lake, altitude 2,000 m., July 21 (No. 583). Geranium viscosissimum Fisch. & Mey. Ind. Sem. Petrop. xi, Suppl. 18 (1843); Geranium (ncisjim Nutt. : Torr. A Graj', Fl. i, 206 (1838), not Andrews, ISot. Keii. 67 (1814). Koehford, altitude 1,600 m.. July 11; Bull Springs, altitude 1,900 m., July 27 (No. 584). Geranium carolinianum L. Sp. PI. ii, 682 (1753^. Elk Canyon, altitude 1,200 m., June 29; Whitewood, altitude 1,1UU m., July 7; Custer, altitude 1,650 m., July 15 (No. 585). Oxalis siaicta L. Sp. PI. i, 435 (1753). Shady places among the foothills: Rapid Creek, altitude 1,100 ni., .June 25; Elk Canyon, altitude 1,200 m., .luue 29 (No. 586). CELASTRACEiE. Celastrus scandens L. Sp. PI. i, 196 (1753). Erect, 1 to 1.5 m. liigh; nowhere found climbing. Kai)id City, altitude 1,050 m., June 25; Little Elk Canyon, altitude 1,100 m., .June 28; iiCadCity, altitude 1,600 m., July 6 (No. 587). RHAMNACEiE. Ceanothus velutinus Dough; Hook. Fl. Bor. Auier. i, 125 (1830). Not uncommon in the hills around Lead City, altitude 1,700 m., July 4 (No. .588). Ceanothus ova tus Desf. Hist. Arl). ii, 3^1 (1809). The common peduncles are in most cases elongated, and the leaves are thinner lai^i— No. 8 ;j 490 than in the Nebraska specimens. Little Elk Canyon, altitude 1,100 m., June 28; Elk C'auyou, altitude 1,200 m.. June 20; south of Lead City, altitude 1,700 m., July (5 (No. 580). Ceanothus fendleri Gray, PI. Fendl. 20 (1S40). Tills is common in the Limestone District, west of Custer. Bull f^priugs, altitude 2,000 m., .lulv 26 (No. 500). VITACEiE Vitis vulpiua L. Sp. PI i, 203 (1753). liiTuiosa, altitude 1,0.50 m., June 24 ; Little Elk, altitude 1,100 m.. Juno 2S; Elk Canyon, altitude 1,200 m., June 29 (No. 501). Parthenocissusquinquefolia(L.) Planch, in DC. Monogr. Pliau. v, i)t. 2, 488(1887); lltiUra (jiiiiiqiu'/oHu L. Sp. I'l. i, 202 (1753). Elk Canyon, altitude 1,200 m., .luue 29 (No. 592). ACERACEiE. Acer iiegiuido L. Sp. PI. ii, 1056 (17.5i>). In fruit : Hot Springs, altitude 1,0.50 m., June 18 (No. 593). ANACARDIACE^ffi. Rhus radicans toxicodendron (L.) Pers. Syn. PI. i, 325 (1805) ; Rhus toxicodendron L. Sp. Pl.i, 266 (1753). Eor remarks on this form of the poison ivy, see page 152 of this volume. In the foothills: Hermosa, altitude 1,100 m., June 28 (No, 591). Rhus trilobata Nutt. ; Torr. & Gr., Fl. i, 219 (1838). I found stems of this shrub 2.5 to 3 m. high and 7 to 8 cm. in diameter, and with leaf- lets 3 to 4 cm. long. Hot Springs, altitude 1,100 m., June 11 and August 8 (No. 595). PAPILIONACfiiE. Thermopsis rhombifolia (Pursh) Richards. Bot. App. 737 (1823); Cytisus rhombi- fuUa Pursh, Fl. Supi>l. 741 (1814). Common : Custer, altitude 1,700 m., June 23 (No. 596). Lupinus sericeus Pursh, Fl. ii, 468 (1814), var. This is L. ornaiKS Dougl., var., of Newton & Jenney's Report. ' The Black Hills and Wyoming specimens have the Howers dark blue and the calyx little gibbous. I think, however, they belong to this species rathir than to L. huco- plnjUuK, with which in some cases they have been placed. Elk Canyon, altitude 1,200 m., June 29; near Bull Springs in the Limestone District, altitude 1,900 m., July 27 (No. 507). Lupinus parviflorus Nutt.; Hook iV Arn. Bot. Beech. 336 (1840). Common: Little Elk Canyon, altitude 1,100 ni., June 28; Elk Canyon, altitude 1,200 m., June 29; Lead City, altitude 1,700 m., July 4; Bull Springs, altitude 1,900 m., July 28 (No. 598). Lupinus pusillus Pursh, Fl. ii, 468 (1814). Hill near I'all lvM\er Falls, altitude l,fMX) m.. Juno 17 (No. 599). Trifolium pratense L. Sp. PI. ii, 768 (175:>). EsciijK-d in meadows: Bull'ah) (iap, altitmlo 975 m., June 21; Hot Springs, altitude 1,050 m., August 2 (No. 600). Trifolium repens L. Sp. PI. ii, 767 (1753). Meadows: Custer, altitude 1,6.50 m., August 1 (No. 601). Lotus ameiicanus (Nutt.) Bisch. Litt. Ber. Linuiesi, xiv, 1.32(1840); Trigonella amni(tniu Nutt. (Jen. ii, 120 (1S18). Hills, near Whitewood, altitude 1,150 m., .Inly 7 (No, 602). ' Geol. Surv. Black Hills, 532 (1880). 491 Psoralea teuuiflora Pursh, Fl. ii, 475 (1814). In the foothills, 15 luiles east of Custer, altitude 1,400 m., July 23 (No. 603). Psoralea argophylla Pursh, Fl. ii, 475 (1814). Rochfortl, altitude 1,600 m., July 12; Custer, altitude 1,650 ni., July 15; Hot Springs, altitude 1,100 m., August 8 (Xo. 604). Psoralea cuspidata Pursh, Fl. ii, 741 (1814). Among the foothills: Fall Eiver Falls, altitude 1,050 ni., August 10 (No. 605). Psoralea esculenta Pursh, Fl. ii, 475 (1814). The specimens from Lead City are low, 7 to 10 cm. high, with obovate leaflets and whitish flowers. Hot Springs, altitude 1,100m., June 18; Hermosa, altitude 1.050 ni., June 23; Lead City, altitude 1,700 m., July 4; Rochford, altitude 1,700 m., July 12 (No. 606). Parosela enneandra (Nutt.) Britton, Mem. Torr. Club, v, 196 (1894); Dalea enneandra Nutt. Fraser's Cat. 1813. Among the foothills: Hot Springs, altitude 1,100 m., August 2 (No. 607). Parosela aurea (Pursh) Britton, Mem. Torr. Club, v, 196 (1894); Dalea aurea Nutt. ; Pursh, Fl. ii, 740 (1814). Among the foothills: Hot Springs, altitude 1,1.50m., August"2 (No. 608). Amorpha canescens Pursh, Fl. ii, 467 (1814). Hills. 15 miles east of Custer, altitude 1,400 m., July 22; Hot Sjirings, altitude 1,100 m., August 2 (No. 609). Amorpha fruticosa L. Sp. PI. ii, 713 (1753). This was seen growing along French Creek and Fall River, but no specimens were secured. Kuhnistera purpurea (Vent.) MacMillan, Metasp. Minn. Val. 329 (1892); Dalea purpurea Vent. Hort. Cels. t. 40 (1800). Variable. Some of the siiecimeus are pubescent on the stem, but most of them are glabrous and have short spikes with the calyx woolly, rather than silky. In the Limestone District, altitude 1,900 m., July 27; Hot Springs, altitude 1,100 m., August 2 (No. 610). Some of the specimens from the latter place have white flowers (No. 611). Kuhnistera Candida occidentalis Rydberg, Contr. Nat. Herb, iii, 154 (1895). In the specimens of this collection the bracts are shorter than the calyx, in which respect they ajjproach the variety multijlora. Hot Springs, altitude 1,100 m., August 2 (No. 612). Astragalus crassicarpus Nutt. Fraser's Cat. 1813. Nearly all my specimens from the Black Hills have large (16 to 20 mm. long), ochroleucous flowers, purplish only at the tip ; but without doubt they all belong to A. crasnicai-pua. Custer, altitude 1,650 m., May 31 to June 4 (No. 613). Astragalus sp. The specimens are witliout pods, hence can not well bo determined. The plant may be a form of the preceding, which it resembles, though more upright, ascending ; racemes elongated (1.5 dm. long), flowers distant on upright pedicels, bracts about 4 mm. long, calyx apiiiessed-hairy with dark hairs; corolla dark purple. Only one plant found, that in full bloom on Battle Mountain, east of the Hot Springs, altitude 1,200 m., June 18 (No. 614). Astragalus platteusis Nutt.; Torr. & Gr. Fl. i, 332 (1838). Not uncommon in the southern part of the Black Hills. Hot Springs, altitude 1,100 m., June 13. August 3 (No. 615). Astragalus carolinianus L. Sp. PI. ii, 7.57 (18.53). Rochford. altitude 1.70f) m., July 12; French Creek, 15 miles below Custer, altitude 1,500 m., July 23 (No. 616). 492 Astragalus adsurgeiis Pall. Astrag. 10, t. 31 (1800^ ; Antratjalus laxmanni Pall. (?), Niitt. A. authorji, uot Jacq. Lately the uaiiie J. laxmanni Jacij.,' Las lieeu adopted lor our Ameriiaii j)lant. Although there is uothiug in the original description that really disagrees with our plant, yet the plate accompanying it shows that Jacquiu's A. humanni was of a diHereut habit. The stem is very slender and decumbeut, the leallets narrower and smaller, the heads, or rather spikes, much longer and narrower. The pods .seem to be like those of -/. adsiinjenn, but are more truncate at the aj)ex and have the style abriii)tly turned dorsally, making a right angle witli the jiod.- In .1. adaunjenatho: pod acuminates into a nearly central style, which is somewhat twisted and curved dorsally, but does not make a right angle. In the Ccdumbia College Herbarium there is a specimen of A. laxmanni collected by A. Kegel in Turkestan, which perfectly agrees with the figure in llortus Viudobonensis. The Mowers of this, although of about the length of those of .1. adaunjens, are much narrower, the calyx less than one-half the length of the claws of the petals, or with the teeth about two- thirds their length, while in A. adaurgcns the calyx with the teeth nearly ecjuals the claws. Common in the region. Some specimens from Hot Springs have a more decumbent stem and brighter blue llowers. Hot Spring.-), altitude 1,100 m., June 8; Hermosa, altitude 1,050 m., June 22; Custer, altitude 1,700 m., July 15 (Xo. 617). Astragalus hypoglottis L. Mant. ii, 271 (1771). Not uncommon among the foothills: Hot Springs, altitude 1,100 m., .Mine 14; Her- mosa, altitude 1,050 m., .June 22 (No. 618). Astragalus drummondii Dougl. ; Hook. Fl. Bor. Amer. i, 153 (1834). Hills near Hot Springs, altitude 1,100 m., Juno 18 (No. 619). Astragalus racemosus Pursh, Fl. ii, 740 (1814). The corolla is ochrolcucous rather than white, and the angles of the i>od8 are blunter than in Nebraska specimens collected in 1801. Near Fall Kiver Falls, alti- tude 1,000 m., June 17 (No. 620). Astragalus gracilis Nutt. Gen. ii, 100 (1818). Hot Springs, altitude 1,100 m., June 15 (No. 573). Astragalus microlobus Gray, Proc. Amer. Acad, vi, 203 (1864). Hot Springs, altitude 1,100 m., June 15 (No. 621). Astragalus aboriginum Richards. Bot. App. 746 (1823). The fruit is membranaceous, long-stipitate, strictly l-celled, but the dors;d suture a little indexed, straight, the ventral one curved. It was collected in fruit only, north of Deadwood. altitude l.ijOO m., July 5 (No. 622). Astragalus aborigimun glabriusculus (Hook.); Phaca (jUihriuacHla Hook. Fl. Bor. Amer. i, 144 (1830). This has generally been regarded as a distinct species, but even Hooker says, in the original description, that it may be a variety of the preceding. The only dif- ference I can find is that the plant is smootlier and the pod a little more curved. The flowers are ochroleucous, the keel tipped with purple. Custer, altitude 1,700 ui., June 1; Kochford, altitude 1,700 m., July 12; Limestone District, altitude 2,000 m., July 26 (No. 623). Astragalus alpinus L. Sp. PI. ii, 760 (1753). 'Hort. Vind. iii,22 (1776). -There 18 a species fnmi Japan, much larger but with the same pod characters, in the National Herbarium. This was identified by Bunge, the well-known authority on Old World Astragali, as A. adaurf/cna, but is evnlently distinct. It clitlers in the style, and in its more slender, less distinctly striate stem, its looser heads on peduncles which are neither strict nor longer than the leaves. Notwithstanding Bunge's deter- mination the ]>lant can not be A. adaurgena, this name belonging to our species, as is plainly shown by the original plates. 493 In woods: Cnsler, altitude 1,700 m., June 3; Little Elk Canyon, altitude 1.200 ni., June 28; Lead t'ity, altitude 1,600 ui., July 6; Rochfoid, altitude 1,700 ui., July 11 (No. 621). Astragalus lotiflorus Hook. Fl. Bor. Ainer. i, 152 (1834). In nearly all the specimens of my collection the flowers are in short, capitate racemes, but at least in some a part of the flowers are sessile, the plant thus approaching the forma brachypufi Gray. Mr. E. P. Sheldon has raised the latter to specific rank, but it can scarcely be regarded even as a variety, and Dr. Gray seems to me to have disposed of it correctly. Hot Springs, altitu. rincida of Nuttall, and this resembles more my plant, which Dr. Gray Avonld have inclnded in O. monticola (Jenney's plants from the Ulack Hills are included in the latter), rather than in 0. visrida as understood by him. Common around Custer, altitude 1,650 to 1,700 ni., June 5 (Xo. 636). Spiesia lambertii (Pursh) Kuntze, Kev. Gen. PI. i, 207 (1891); Oiytropis latnbei-tii Pursh. n. ii, 710(1814). Hot Springs, altitude 1,1(¥) ni.. .Tune 18; Kochford, altitude 1,700 m., July 11 (No. ti:{8t. Spiesia lambertii sericea(Nutt.) Kydberg. Hot. Snrv. Xebr. iii, 32(1894) ; Oxytropis sericea Xutt. ; Torr. & Gr. Fl. i, 339 (1838). All my specimens have yellow llowers. In a few the calyx is somewhat viscid, and these can scarcely be distinguished from the preceding species except by the size. The bracts arc narrower than in the blue-llowercd forms I have seen. Hot Springs, altitude 1,100 m., June KJ (Xo. ()37). GlycyiThiza lepidota Pursh, Fl. ii, 480 (1814). On tll<^ French Creek, 15 miles below Custer, altitude 1,400, July 22 (No. 639). Hedysaruni americauum Hritton, Mem. Torr. Club, v, 201 (1894); Hedysantiu (ilphiiim americanum Mx. Fl. ii, 74 (1803); H. boreale Xutt. (ien. ii, 110 (1818). In Coulter's Manual the stamens are given as diadelphous (.5 and 1), in Gray's Manual as di.idelphous (9 and 1) in the key, but as 5 and 1 in the description of the genus. In all dowers investigated, they were 9 and 1, but the united stamens were of two different lengths, every second one being shorter. Hills: Kochford, altitude 1,700 m., July 12 (No. &10). Vicia americana Muhl.; Willd. Sp. PI. iii, 1096 (1801). Common: Little 121k Canyon, altitude 1,100 m., June 28; Elk Canyon, altitude 1,200 m., June 29; Lead City, altitude 1,600 m., July 6 (Xo. 641). Vicia americana linearis (Nutt.) Wats. Proc. Amer. Acad, xi, 134 (1876); Lathyrns InuariH Nntt. : Torr. A: Gr. Fl. i, 276 (1838). \'. americana ami this plant grow together sparsely everywhere in Xebraska. I have not seen any intermediate forms, but they both grade into tiie variety Iriinvalo. Hot Springs, altitude 1,050 m., June 16 (Xo. 643). Vicia americana truncata (Nutt.) Brewer, Bot. Cal. i, 158 (1856); nVifl inincata Xutt.; Torr. & (ir. Fl. i, 270 (1838). Always near water, where V. americana and F. linearis are found on the drier land. Hot S])ring8, altitude 1,0.50 m., June 13 (Xo. 642). Lathyrns ochroleucus Hook. Fl. Bor. Amer. i., 1.59 (1833). CoiiuMon and very luxurious in the Black Hills. It is regarded as a very good fofbbr jdaut, and may be of economic value. b'apid Creek, altitude 1,000 m., .June 25; Elk Canyon, altitude 1,200 m., June 29 (No. 644). ROSACEiE. Prunns americana Mnrsh. Arl>. Aiiur. HI (1785). Draws among the foothills: Minuekahta, altitude 1,275 m., August 4 (No. 645). Prunus besseyi Bailey, Bull. Cornell Agr. Exp. Sta. 70, 261 (1894). In tlic lootliills: Ilermosa, altitude 1,0.50 m., .Iune23; Minuekahta, altitude 1,300m., August I ( No. till".). Prtinns pemisylvanica L. f. Su])]>l. 2.52 (1781). In the Black Hills it never becomes a large tree. The largest specimens I saw were less than 7 m. high. On the hills around Lead City, it is only a small shrub, n«)t much taller than the jireccding, and has generally folded leaves. Woods : Custer, altitude 1,700 to 1,800 m. ; Lead City, altitude 1,700 m., J uly 3 and 6 (Xo. 647). 495 Prunus virginiana L. Sp. PI. i, 473 (1753). Wholly glabrous; leaves dull, ovate with acuminate base, thin, sharply serrate. In the Black Hills only a shrub or a low tree, at ruost 6 cm. in diameter. In damp, shaded canyons: Hot Springs, altitude 1,100 m., June 13; Sylvan Lake, altitude 2,000 m., July 18 (Xo. 648). Prunus demissa (Xutt.) Walp. Rep. ii, 10 (1843); Cerasus demiasa 'Sntt.; Torr. & Gr. Fl. i, 411 (1840). I include under this two forms. One is the common chokecherry of the western plains. It is generally glabrous; leases oval with truncate or even cuneatc base, thick, pale beneath. It dift'ers from P. virginiana in the much thicker leaves and sweeter fruit. Wherever I have seen it, it is a small tree — that is, it has one prin- cipal stem, with a rounded top. It has been named P. demissa, although I doubt whether it is identical with the original. Eochford, altitude 1,600 m., July 12 (No. 649). The other form has the young shoots, peduncles, and lower surface of the leaves pubescent, and even a little viscid, glabrate in age; leaves thick, shining above, paler beneath, elliptical or Itroadly oval, abruptly pointed or obtuse; base truncate or slightly cordate, or sometimes somewhat ctmeate; flowers larger than in the pre- ceding two. A low shrub, generally a few meters high. The largest stem I saw was about 5 cm. in diameter, with heartwood fully as dark as in /'. serofina. It was growing in the same canyon as P. virginiana, from which it was easily distinguished. Hot Springs, altitude 1,100 m., June 13 and August 8 (No. 650). Spiraea lucida Dougl.; Hook. Fl. Bor. Amer. i, 172 (1833), as synonym; S. hetuli- folia Hook. loc. cit., not Pall. Professor Greene ' has separated the American species from the Asiatic. Rapid City, altitude 1,000 m., June 25; Little Elk, altitude 1,100 m., June 28; Lead City, altitude 1,600 m., July 6 (No. 651). Luetkea caespitosa (Xutt.) Kuntze, Rev. Gen. PI. i, 217 (1891); Spira'a cwspiiosa Nutt. ; Torr. *fe Gr. Fl. i, 418 (1840). Neither flowers nor fruit were found. The plant was growing on the hills around Little Elk, altitude 1,300 m., June 28 (No. 6.52). Opulaster opulifoUus (L.) Kuntze, Rev. Gen. PI. ii, 949 (1891), var. ; Spira-a opulifo- /iaL. Sp. PI. i,489 (1753). My specimens from northern Nebraska and those I have seen from Colorado dift'er from the Opulaster opuIifoUns of the eastern United States in having pubescent ova- ries. The pubescence remains, partly at least, until maturity, while in the eastern form the fruits are smooth and shining. The ovaries are generally only three, and the leaves smaller and more rounded in outline. This form seems to connect this species and the following. Seeds oblir^uely pear-shaped, shining, carinate on one side. In the lower parts of the Hills near water. Rapid Creek, altitude 1,100 m., June 25; French Creek, 10 miles below Custer, altitude 1,500 m., June 22; Hot Springs, altitude 1,050 m., August 2 (No. 653). Opulaster mouogyna- (Torr.) Kuntze, Rev. Gen. PI. ii, 949 (1891); Spinva mouogijna Torr. Ann. Lye. X. Y. ii, 1892 (1827). Very shrubby, 3 to 6 dm. high; leaves small, about 2.5 cm. long, round in out- line, deeply 3 to 5 cleft, teeth sharper than in the preceding; flowers half the size, ovaries mostly 2, very woolly. The leaves are perfectly smooth, in this point dis- agreeing with the description of Xeillia torreyi, but otherwise agreeing with the •Pittonia, ii, 221. -Thus named l)y Professor Greene. 1 have seen specimens of an Opulaster, col- lected by Dr. Sandberg in Idaho, which fits the description of Spirwa monoggna Torr., loc. cit., even as to the number of the carpels. This differs as much from my 8i)eci- mens as does Opulaster opulifolia. 496 type specimens. It also tlisagrces in several ]>oiuts with the ilescriiition of Professor (ireeiie, espi'cially in the size of the liowt-rs. Terhaps all tlio Opulasters of North America are but one very variable species. Hills nt-ar Harneys Peak, altitude 2, 1(X) ni.. July 21. Au-iust 17 (No. t!54). Rubus parviflorus Nutt. Gen. i. :W8 (1818). Not uncommon: Elk Canyon, altitude 1,;>(>0 m.. June 2!t; Lead City, altitude 1.600 m., July 1 (No. 655). Rubus americanus (Pers.) Britton. Mem. Tnrr. Club. v. ISTt (1891) ; Hiifius naxaiilis amrriaiiiiis Pits. Syn. ii, 52 (1807). Canyon north of Runkels, altitude 1,:>00 m.. .luue 30; Lead City, altitude 1,6(M) m., July 1 (No. (;:.()). Rubus strigosus 3Ix. Fl. i, 297 (1803). Little Elk Canyon, altitude 1,200 m.. June 28; Elk Canyon, altitud.- ^,^^0(^ ui,. Juno 29: l^ochford. altitude 1,700 m., July 12 (No. 657). Cercocarpus parvifolius Nutt. ; Hook. & Am. Hot. Beech. Suppl. 337 (1841). ^'. ry rare : Hot S]>ring8, altitude 1,100 ra.. June 13 (No. 658). Geum strictuni Ait. llort. Kew. ii, 217 (1789). Lead City, altitude 1,600 ni., July 6 (No. 659). Geum macrophyllum Willd. Euum. i, 557 (1809). I think this Avonld better be regarded as a variety of the preceding. Ra])id City, altitude 1,0.".0 m., June 25; Eochford, altitude 1,6(X) ni.. July 11 (No. 1206). Geum ciliatum Pursh, Fl. i, 352 (1814). This name precedes G. trijlorum in Pursh's Flora.' Common: Cnster, altitude 1,700 m.. May 28; Elk Canyon, altitude l,2fX) m., June 29; Lead City, altitude 1,600 m., July 1 (No. 660.) Fragaria virgiuiaua Duchesne, Hist. Nat. Frais. 201 (1766). A low, small-leafed form, collected early in the spring. Custer, altitude 1.650 m., June 1 (No. 661). Fragaria vesca americana Porter, Bull. Torr. Club, xvii, 15 (1890). Custer, altitude 1,700 m., June 6; Hot .Springs, altitude 1,100 m., .lujio 14 : Rapid City, altitude 1,000 m., June 25; in fruit, Custer, August 20 (No. 662). A slender form with very tliin, cuneate, narrow leaves, 3 times as long .as broad, toothed towards the apex, the peduncles slender, about the length of the leaves, was collected near Sylvan Lake, altitude 1,900 m., July 18 (No. 663). Potentilla arguta Pursh, Fl. ii, 736 (1814). The llowers ajtpear to be always white, but they turn yellow in drying. Hills: Hormosa, altitude 1,100 m., June 22; Lead City, altitude 1,700 m.. July 6 (No. 66^1). Potentilla glandulosa Lindl. Bot. Reg. xix, t. 1583 (1833). In this the llowers are light yellow, the cyme more difluse than usual. Hills: Rochford, altitude 1,700 m., July 12 (No. (i65). Potentilla monspeliensis L. Sp. PI. i, 499 (1753). This includes /'. nomgiai L. described lower on the same page. Hot Springs, altitude 1,050 ni., June 14 ; Hermosa, June 22; Rajiid City, altitude 1.000 ni., June 25; Elk Canyon, altitude 1,200 ni., June 29; Rochford, altitude 1,600 m., July 11. The specimens from the latter place are very slender and .approach P. riralis (No. 666). Potentilla pennsylvanica strigosa Pursh, Fl. i, 3.56 ( 1814). Common : Hermosa, allitude 1, (•.">() m., June 23; Rochford, altitude 1,700m., July 11; Cnster, filtitnde 1,625 m., August 13 (No. 667). Potentilla hippiaua Lehm. Nov. Stirp. Pug. ii, 7 (18.30). Rochford, altitude 1,600 m., July 12; Custer, altitude 1.650 m., July 18 (No. 668). These epecinieus seem to be typical, agreeing fully with the description and plate in ' Pursh, Fl. ii, 736. 497 Hooker's J'lora, excejit that tbe branches of the ('vuie are more upright and the calyx lobes longer. A slender form ajiproacbing /'. efusa was collected at Bull Springs, July 26 (No. 669). Potentilla hippiaua diffusa (Gray) Lebm. Add. lud. Hort. Ilaml.. 8(1849); P. ■ diffusa Gray, PI. Fendl. 41 (1849). Custer, 1,650 m., August 13 (No. 669^). Potentilla gracilis Dougl, ; Hook. Bot. Jlag. Ivii, t. 2984 (1830). This plant has always been regarded as P. {/rariUs Dougl., but there is a specimen so labeled, collected by Mr. Douglas at Puget Sound, in the Columbia College her- barium, and it seems quite different. Lead City, altitude 1,700 m., July 4; Rochford. altitude 1,600 m., July 12 (No. 670). Potentilla gracilis fastigiata (Nutt.) Wats. Proc Amer. Acad, viii, .557 (1873); r. fastujiata Nutt. ; Torr. & Gr. Fl. i, 440 (1838). b'ochford, altitude 1,550 m., July 11 (No. 671). Potentilla nivea dissecta Wats. Proc. Amer. Acad, viii, 559 (1873). This form was included in Dr. Watson's variety, bitt it seems to have very little relationshiji to P. nivea. It appears to be connected rather with P. concinna humis- slrafa and forms of P. gracilis. The name should also be changed, as there is &V older r. dissecta Pursh. It will be left, however, in the present form until its rela- tionship is settled. Rare: Hot Springs, altitudr 1,100 m., June 11 (No. 672). Potentilla concinna Richards. App. Frankl. Journ. ed. 2, 20 (1823). Custer, altitude 1,650 m., June 3 (No. 673). Potentilla concinna humistrata, uom. nov. ; P. concinna humifusa (Nutt.) Lehm. Rev. Pot. 112 (1856) ; F. humifusa Nutt. Gen. i, 310 (1818), not Willd. ; Schlecht. Gesell. Naturf. Freunde Berlin Mag. vii. 289 (1813). Hills north of Deadwood, altitude 1,500 m., July 5 (No. 673i). Potentilla fruticosa L. Sp. PI. i, 495 (1753). Dry hills and mountain sides: Elk Canyon, altitude 1,300 m., June 29; Rochford, altitude 1,700 m., July 12 (No. 674). Agrimonia striata Mx. Fl. i, 287 (1803). Custer, altitude 1,6.50 m., July 18; Rochford, altitude 1,600 m., July 12 (No. 675). Rosa engelmanni AVats. Gard. & For. ii, 376 (1889). Common in tbe Black Hills: Little Elk CJanyon, altitude 1,100 m., Jnne28; Lead City, July 4; Rochford, July 12; Custer, altitude 1,700 m., August 19 (No. 676). Rosa woodsii Lindl. Ros. Monogr. 21 (1820). The sepals arc. however, seldom lobed. A character so unstable, should never be used to distinguish the ro.ses.' Hot Springs, altitude 1,050 m., July 17; Hermosa, altitude 1,000 in., June 24 ; Little Elk Canyon, altitude 1,100 m., June 27 (No. 677). Rosa arkansana Porter, Port. & Coult. Fl. Col. 38 (1874). I thought at first that this must be a form of B. liumilis, as the sepals are deciduous, but the leaflets are different; there are no infrastipular .spines, and tlie calyx is not setose. It agrees bet>t with R. arkansana, except as to the deciduous sepals. A very low shrub, only 1 to 2 dm. high, growing on a very dry hill near Hermosa, altitude 1,100 m., .lune 23 (No. 678). Crataegus macrantha Lodd. ; Loud. Arb. ».V Frut. ed. 2, ii, 819 (1851). Among the foothills: Hermosa, .nltitude 1,100 ni., June 23; canyon north of Run- kels, altitude 1,300 m., June .30 (No. 679). Amelanchier alnifolia Nutt. ; Torr. &. Gr. IT. i, 473 (1840), as synonym; Aronia alni folia Nutt. Gen. i, 306 (1818). ' The character is not given in the original description (Lindley, on the contrary, states that the sepals are entire) and seems to have been added by Dr. Watson. 498 Leaves densely white-woolly lioinath when young, hnt wholly glabrous when mature. The leaves of my specimens are UTiusnally thin. Custer, altitude 1,70() m., June 5 and .Inly lij; Hermosa, altitude 1,100 m.,.Iuno 24; Elk Canyon, altitude 1,300 m.. .lune L'9 (No. r.80). Sorbus sambucifolia (Cham. «.V Schlecht. ) Kn-m. Syn. Mon. iii, 39 (1?<47); Cham. A- Schlecht. Linuiea, ii. 36 (1827). -Vtu'ording to Mr. Kunkel, an enterprising lumberman, this is growing in a canyon on the roail between Rnnkel's sawmills and Sturgis, I did not see any specimens in the r.laok Hills. SAXIFRAGACEiE. Saxifraga cernua I.. J>p. PI. i. 103 (1753). A few slender s)>ecimens iii bud, eollected al)ove .'>ylv;in Lake, iiltitude 2,000 nj., July 8 (No. fiSl). Tellima parviflora Hook. Fl. Bor. Amer. i, 239 (1833). Rare: Custer, altitude 1,700 mi., .lune 4; west of Lead City, altitude 1,800 m., July 4 (NO.G82). Heiichera hispida Tursli. Fl. i. 1S8 (1S14). Common: Hot Sjirings, altitude 1,100 m., .luno 8; Roehtbrd, altitiule 1,700 m., July 12 (No.r>S3). Heuchera parvifolia Nutt. ; Torr. & Gr. Fl. i, 581 (1840). ( )nly one specimen secured at Rochford, altitude 1,700 m., .Inly 12 (No. 084). Parnassia parviflora DC. Prodr. i, 320 (1824). P^reneh Creek, below Custer, altitude 1,600 m., August 1 (No. 685). Ribes setosum Lindl. Trans. Ilort. Soc. vii. 243 (1830). lliis agrees with the description, also by Lindley, in the Botanical Register,' except that the berries are rarely bristly. Dr. Gray says, in the American Natural- ist:- "The young berries, either perfectly smooth and naked, or beset with a few bri.stly prickles.'' It has been taken for /». oxijcanthoules L. {Ii. hirtellum Mx.). from which it differs in that the leaves are finely pubescent, the calyx cylindrical and longer than the lobes. The bush is generally more spiny and prickly, and the berry sometimes a little bristly, dark purple, and extremely sour even when ripe. I'' has been found in northAvestern Nebraska by Professor Swezey, of the Uuiversit ' of Nebraska, who was the first to recognize it as K. sctositm Lin. PI. i, 201 (1753), var. I ])lai e tliis )d:int doubtfully with this species, from which if difiers in the longer peduncles and the longer calyx tube. It may also be a form of the preceding, but is nearly without thorns. The leaves are more deei>ly deft, with acutisli lobes, smooth and shining above, finely .mil sparingly ]iubescent beneath, in form resembling some- what those of I,', tnneum. The (lowers are as in /»'. mlosum, \. e., the ealyx eylindrical, a little longer than the narrowly oblong calyx lobes; spines and bristles very rare and small : jietioles cili.ited by a few fine-fringed bristles. Immature fruit smooth, yellowish; mature fruit not seen. The stem and leaves of /»'. aurnim, with the pubescence and llowers of I{. setosum, would fairly represent uiy plant, which may, perhaps, be a hybrid between the two. ' XV, t, 1237(1829). «x.271 (1876), "Proc. Amer. Aea0 m., August 6 (No. 695). The other is simple, with larger oliloug-ovale leaves Hochford, altitude 1,()00 ra., July 11 ; Custer, altitude 1,600 m., July 14; Hot Springs, altitude 1,050 m., August 8 (No. 696). 500 Epilobium drummondii Ihmssk. Monogr. Gatt. Kpil. 271 (1884). Two forms Aveiv met with. One was tall, sometimes 5 iliii. lii.!j;li, stringy, with nar- row leaves: Rocliford, altitude 1,700 m., July 12 (No. 697). The other was lower, with hroadir. ovatc-laneeolate leaves siuiiatdy toothed, sessile and half-clasping. Si]>8 Spring, in the Limestone District, altitude 1,800 ni., July 28 (No. 698). Epilobium hornemanni Reicheub. Icon. Crit. ii, 73 (1824). Only a few depauperate plants collected at Sips Spring togetiur witli thojtreceding (No. 699). Epilobium paniculatum Nutt. ; Torr. «.V: Gr. I'l. i, 4!tO (1840). Custer, altitude l,70()iu., August 21 (No. 574). Gayophytiim ramosissimuni Torr. ».V Gr. Fl. i,.">13 (1840). Hills: Kochford, altitude 1,700 m., July 12; Hull Springs, altitude 1,900 m., .Inly 26 (No. 700). CEnothera biennis L. Sp. Tl. i, 346 (1753). This is evidiiitly native in western Nebraska, as well as \n the Black Hills. In geiu'ral habit it differs nuich from (>. hieiniis of Europe. Rocliford, altitude 1,600 m., July 11 (No. 701). Another form, somewhat like the preceding, but not strigose, was also found. The pul)escence is fine, silky, appressed ; radical leaves many, obovate, about 2.5 cm. long; calyx tube nearly 4 cm. long, lobes linear-lanceolate about 1.25 cm. long; petals broadly obovate; pod linear-oblong, only a little narrower upward. Custer, alti- tude 1,700 m., July 15 (No. 702). CEnothera simiata L. Maut. 228 (1767). Only a few small specimens secured at Hot Springs, altitude 1,100 m., .Tune 14 (No. 7o:5). CEnothera albicaulis Pursli, Fl. ii, 733 (1814), not Nutt.; (K. pinnatifida Nutt. Gen. 1,245(1818). The plant is very variable: Hot Springs, altitude 1,100 m., June 16; Hermosa, altitude 1,000 m., June 23 ; Custer, altitude 1,700 ni., July 16 (No. 704). CEnothera pallida leptophylla (Nutt.) Torr. A Gr. Fl. i, 495 (1838) ; (E. leptophi/Ua Nutt.; Torr. A. (Jr. loc. cit., as synonym; O!. alhicauUa Nutt. Gen. i, 245 (1818), not Pursh. The ty])ical (K. paJVula has more or less runcinate-tootlied leaves. Hndvcii soil: Custer, altitude 1,700 m.. July 15 (No. 705). CEnothera coronopifolia Torr. & Gr. Fl. i, 495 (1840). Sandy soil: Custer, altitude 1,700 m., June 4; Hot Springs, jilritude 1.100 m., June 15 (No. 706). CEnothera caespitosa Nutt. Eraser's Cat. (1813). Battle Mountain, cast of Hot Springs, altitude 1,200 m., June 15 (No. 707). CEnothera serrulata Nutt. Gen. i, 246 (1818). ' Fall River Falls, altitude 1,000 ni., June 17; Rapid City, altitude 1,0.".() m., .Iune25; Elk Canyon, altitude 1,200 m., June 29 (No. 708). Gaura coccinea Pursh, Fl. ii, 733 (1814). Hot Springs, altitude 1,100 m., June 13 (No. 700). A form, jiei fectly smooth, with white bark which ])cels olf lik(^ (hat of (I'.iiothrra palliila, was collected at Cluster, altitude 1,700 m., July 15 (No. 710). Iliis form is alFo found in western Nebraska, where T ccdlected it in 1890 and 1891. Gaura parviflgra Dougl.; Hook. Fl. IJor. Amer. i, 208 (1834). Hot Springs, altitude 1,050 m., August 2 (No. 711). 'Gray includes in liis list, in Newton A- Jenney's Report, also i)er iiair connate; corolla about 1..") cm. long, pul>esceut on the outside, strongly gibbose at the base of the tube, yellow, changing into reddish; stem smooth; bark lirst green, afterwards grayish straw- colored, more or less shreddy. It ditlers from the true L. hirsnta in the smaller leaves, which are perfectly smooth above and decidedly glaucous beneath (in L. hirsula they are seldom glaucous), in the coroUa, which is more gibbose, and in the smooth aud shreddy stem. It may be a distinct species. It resembles somewhat L. glaucu, from which it diftors in the longer, hairy, and gibbose corolla. It is sometimes a low shrub, sometimes high-cljmbiiig. The only .sijecimen in the National Herbarium, exeejjt those from the Black Hills, was ecdlected by S. M. Tracy in the Koeky Mount;iins in 1888 (no locality given). In tlie herbarium of Harvard University are the following specimens: In Dr. Gray's collections, a fragmentary one labeled ' Lonicera donglasii Fl. Bor. Am. Hooker misit January, 1835;" and another labeled '' L. hirsula var. donglabii Hooker approaching ylauva.'' The others were probably received later, as there are no indications that Dr. Gray had ever studied them, \\z: Lonicera glanca Hill, Agricultural College, Ingham County, Mich., 1860 (no collector given) ; Ex. Herb, Thurber, coll. T. J. Hale, Lonicera (lonr/laaii DC. hab. Ripon, Wis., 1861 ; 150 Lonicera hirstila (L. douglasii Hook). "EiverThat Turns," July 13, 187!1, coll. J. Macoun, F. L. S. Railway Survey ; 9G.I Herb, of Wm. Werner, Lonicera glanca Hill [corrected to], L. hirsuta Eaton, Paiuesville, Ohio, 1890; Herb. L. H. Bailey, jr., Lonicera glanca Hill, Lansing, Mich., 1886. Little Elk, altitude 1,200 m., June 28; Lead City, altitude 1,600 m., July 6 (No. 717). RUBIACEiE. Galium aparine L. Sp. PI. i, 108 (1753). Hot Springs, altitude 1,050 m., June 13 (No. 748). Galium triflorum Mx. Fl. i, 80 (1803). Elk Canyon, altitude 1,200 m., June 29; Lead City, altitude 1,600 m., July 6 (No. 7411). Galium boreale L. Sp. PL i, 108 (1753). Hot Springs, altitude 1,100 m., June 15; Hermosa, altitude 1,100 m., June 22; Rapid City, altitude 1,000 m., June 25; Elk Canyon, altitude 1,200 m., June 29 (No. 750). VALERIANACE-aS. Valeriana edulis Nutt. ; Torr. & Gr. Fl. ii, 48 (1841). Itoehford, altitude 1,700 m., July 12; Oreville, altitude 1,700 m., July 16 (No. 751). Valeriana sylvatica Banks; Kichards. Bot. Apj). 730 (1823). liochlord, altitude 1,600 m., June 12; Oreville, altitude 1,700 m., July 16 (No. 752). COMPOSITiE. Lacinaria scariosa ( L. ) Hill, Vog. Syst. iv, 49 (1762); Serratula acarioaa L. Sp. PI. ii.M8 (17.53). Custer, altitude l,60(t m., Aug. 1 (No. 753). Lacinaria piuictata (Hook.) Kuntze, Rev. Gen. PI. i, 349 (1891); IJatris jmnctaia Hook. Fl. Bor. Amer. i, 306 (1833}. Custer, altitude 1,600 m., August 1; Hot Springs, altitude 1,100 m., August 3 (No. 754). Kuhnia glutinosa Ell. Bot. S. Car. A: Georg. ii, 292 (1821-1824); A. cnpatorioidea ghitiuDxit HitcliCDck, Trans. St. Louis Acad, v, 498 (1891). Hot Si)riiiga, altituile 1,100 m., August 2, (No. 755). 505 Grindelia squarrosa (Piiisb) Diiiial, iu DC. Prodr. v, 315 (1836); Duma sqnarrvsa I'lirsli, Fl. ii, .".59 (.1811). Hot Springs, altitude 1,100 m., August 2 (No. 75(5). Two dei>;uii»erate specimeus iu blooui (several jilauts were seeu) wore collected al)ove Fall Kiver Falls, altitude 1,000 ni., Juno 17. These two had narrow loaves, more toothed than usual, and I took them at first to be G. nana Nutt., but they must belong to (/. sijuarrosa (No. 757). Chrysopsis villosa (Pursli) Nutt. (U-u. ii, 151 (1818); Ainelhi'^ rillo-sus Pursli, Fl. ii, 561 (1^1^)- Sandy soil: Kochford, altitude 1,000 in., July 12; Custer, altitude 1,050 m., July 12, (No. 758). Chrysopsis villosa cauesceus (DC.) firay, Syn. Fl. i, pt. ii, 123 (1884) ; Aplopappns (?) trtHP.sa/ia DC. Prodr. v, 319 (1836). Custer, altitude 1,650 m., July 15 ; Hot Springs, altitude 1,100 m., August 2 (No. 759). Eriocarpuni grindelioides Nutt. Trans. Amer. Phil. Soc. ser. 2, vii, 321 (1811); Aplopappua nuftaUii Torr. & Gr. Fl. ii, 242 (1812). Gypsum rocks above Hot Springs, altitude 1,100 m., August 2 (No. 760). Eriocarpum spinulosum (Pursh) Greene, Erythea, ii, 108 (1894) ; Amcllus .spiiiidoaus Pursh, Fl. ii, 564 (1814); Aplopappus (?) spinitlosus DC. Prodr. v, 347 (1836). Kare: Hot Springs, altitude 1,100 ni., August 2 (No. 761). Solidago erecta Pursh, Fl. ii, 542 (1814). This is the >'. spcciosa angustata Torr. A: (ir., of Newton &, Jeniiey's Report. I refer it doubtfully here. It does not agree with the original description by Pursh, being perfectly smooth except the margins of the leaves, which are scabrous. It agrees well with the description of S. erecta by Elliott.' Gray- regards the two as the same species notwithstanding the iiubescence attributed to the first. It is near S. speclosa, but the primary veins are more or less jirominent and often looi)ed. Hilly places: Custer, altitude 1,700 m., August 16 (No. 762). Solidago missouriensis Nutt. Jonrn. Acad. Phil, vii, 32 (1834). Very variable. The form held as the typical one, that is, stouter with spreading panicle of recurved branches, was collected at Custer, altitude 1,700 m., August 14 (No. 763). This is, however, not the original . Mant. 11 1 (1767). The corymbs in all specimens seen in the IJlack Hills are unusually suiall and dense with larger heads. Hot Springs, altitude 1,100 m., August 10 (No. 770). Aster sibiricus L. Sp. I'l. ii, 872 (1753). Sliai commiiiatua Torr. »fc Gr. V\. ii, 121 (1841). Custer, altitude 1,600 m., Angu.st 16 (No. 773). Aster patulus Lam. Eucycl. i, 308 (1783). Like .1. prcnanilioidoi Muhl., but the base of the leaves is not cordate at all. Only a few si)ecimens secured. Custer, altitude 1,700 ni., .Vugust 13 (No. 774). Aster juuceus Ait. liort. Kew. iii, 204 (178'J). See my remark on this species, this volume, ]i. 1()3. 'flu- leaves are linear, 1-ucrved, with slightly revolute margins. Wet meadow: Custer, altitude 1,600 m., August 15 (No. 775). Aster salicifoliua Lam. Encyl. i, 306 (1783). Meadow: Custer, altitude 1,600 m., August 15 (No. 77()). Aster ptarmicoides (Nees) Torr. A: Cr. Fl. ii, 160 (1841); DoelliHtjcria jitnrmiroides Nees. (len. A: Sp. Ast. ls3 (1832). Limestone District, near Bull Springs, altitude 1,900 m.. .Inly 25 (\t). 777). Aster falcatus Lindl. ; DC. Trodr. v, 241 (1836). Li (iraj^'s list, Newtou «fc Jenney's Keport'; uo specimens from this region seen by the writer. Aster pauiculatus Lam. Kncy (No. IIH). Erigerou subtrinervis Kydberg, Mem. Torr. Club. v. 328 (1894) ; J:. tjlahcUus moUia Gray, Proc. Acad. Phila. 1863, 61 (1863), not !■:. molliH I). Don, Prodr. Fl. Nep. 172 (1825). Plant hairy throughout, from grayish scabro-strigoso to soft-pubescent, leafy to the top; leaves thin, more or less distinctly trii)le-nerved, the lower oblanceolate, petioled, the Tipper obbmg to ovate-lanceolate, sessile and half-clasping; heads 1 to 5, corymbose, 1.5 cm. wide and 0.75 cm. high; rays 0.75 to 1 cm. long, blue or llesb color; involucre hirsute. ' Geol. Surv. Black Hills, 531 (1880). " -Loe. cit. 507 Gray (loc. cit.) says: ''From the sLape of the leaves, and their size and ahuudauce lip to the summit of the stem, this shoiihl rather ho referred to E. macranthum; but the pubesceuce is strange for that species;" and in the Synoptical Flora he adds, •' Perhaps a distinct species." I believe it to be distinct and rather more related to /v. niacranthus than to E. (jiahelhis; in fact, it diflers little from the former except in the pubescence, which is not only more copious but of a different nature, more resembling that of the hirsute ibrms of E. {/laheUn-s. In E. mavranthus the bracts are nearly smooth, somewhat minutely glandular or puberulent; in E. suhtrinerris thoy are covered with longer spreading hairs. I have named the species E. sithtri- ucrris, from the fact that the lower lateral veins are often stronger, making the leaves look as if triple-nerved, a character often seen in E. sj;ccio.v«s, sometimes in E. viarranlhuf:, though I ha*e not seen it in E. fjUibellus. The leaves are generally thinner than in any of these three related species. In woods: Custer, altitude, 1,700 m., August 16 (Xo. 779). Brigeron pumilus Nutt. Gen. ii, 147 (1818). Dry table-lands: Hot Springs, altitude 1,100 m., June 13 (No. 780). Erigeroii compositus I'ursh, Fl. ii, 535 (1811). All my specimens are strictly scapose and densely matted. Exposed rocks in the Limestone District, altitude 1,900 m., July 27. Also seen near the Needles, altitude about 2,100 m., in the Harney Eango (No. 781). Erigeron canus Gray, PI. Feudl. 67 (1849). Dry table-hinds: Hot Springs, altitude 1,100 m., June 13 (No. 782). Erigerou philadelphicus L. Sp. PI. ii, 863 (1753). Near water: Hot Springs, altitude 1,0.jO m., June 17; Heruiosa, altitude 1,000 m., June 22; Elk Canyon, altitude 1,200 m., June 29 (No. 783). Erigeron flagellaris Gray, PI. Fendl. 68 (1849). IJiclisoil: Hot Springs, altitude 1,050 m., June 17; Hermosa, altitude 1,000 m., June 22; liuckhorn Mountain, near Custer, altitude 1,800 m., July 14. The speci- meus from the latter place, have much smaller radical leaves than the rest (No. 784). Erigerou ramosus beyrichii (Fisch. & Mey.) Smith & Pound, Bot. Surv. Nebr. ii, 11 (1893); StvnattU lenruhii Fisch. & Mey. Ind. Sem. Petrop. 27 (1821). Below Buckhoru Mountain, Custer, altitude 1,700 m., August 14 (No. 785). Erigerou armerifoliiis Turcz.; DC. Prodr. v, 291 (1836). Kadical leaves numerous, spatulate. Wet meadow, Custer, altitmle 1,700 m., August 20 (No. 7S6j. Erigerou cauadensis L. Sp. PI. ii, 863 (1753). This is rare in the Black Hills. Custer, altitude 1,650 m., August 20 (No. 787). A dei)auperate form, resembling much E. divaricalus, was collected in Kuby Glen, Cus- ter, altitude 1,700 m., August 20 (No. 788). Filago prolifera (Nutt.) Britton, Mem. Torr. Club, v, 329(1894); Evax prolifera Nutt.; DC. I'rodr. v, 459 (1836). I5arren Hills: Hot Springs, altitude 1,100 m., June 13 (No. 789). Autennaria dioica (L.) (la-rtn. Fruct. ii, 410 (1791); (InaphaliHm dioUum L. Sp. PI. ii, 8.50 (1753j. The typical A. diolva has leaves 1 to 2 cm. long, and 0.3 to 0.6 cm. wide, silvery white on both sides; bracts all obtuse, the papery portion white or jiiukish red. IJorders of woods: Hot Springs, altitude 1,100 m., June 13; Rochfort, altitude 1,600 m., July 11 (No. 790). A peculiar form with several crowded heads, and often acute bracts, I also refer hero. The bracts are of livid-brownish color, approaching J. alpina in this respect, but the plant is in every respect larger. Custer, altitude 1,700 m., July 4 (No. 792). Auteunaria dioica parvifolia (Nutt.) Torr. &- rjr. Fl. ii, 431 (1840); Autennaria jiurti/oUa Nutt. Trans. Amer. Phil. Soc. u. ser. vii, 406 (1841). 508 Kadical leaves narrow, oblanceolate, morn or less revolutc, finely silvery on both sides; llowerinjjNtcni sliMider, bearini:; sinallrr heads with bri{i;litly rose-colored hracts. The ]ilant is more dirt'nscly sproadiiit,'. I'rairie: Koihford, altitude 1.600 m., July 12 (No. 791). Antennaria plantagiiiifolia (L.) K'ichards. ISot. Ai>i>. cd. 2, ^50 (1823); (hiaj)hring, around Custer, alti- tude 1.6r>0m., May 30 (No. 794). Tiiis is low, 7 to 10 cm. liigh, witli smaller heads, radical leaves obovato or oblong, about 3 cm. long, glabrous al)o^■e, white beneath. The other two lorms collected biloiig to the western form of J. pUinltKi'imfoVia, which jierhaps is distinct from the eastern. The leaves are smaller, 1.5 tol cm. long, silky on both sides, and seldom 3-ncrved. In one of the forms the leaves arc about 3 cm. long, the stem more robust and more iloccose. Hot Springs, altitude 1,100 m., June 13; Hermosa, altitude 1,050 m., June 2; Lead City, altitude 1,700 m., July 4 (No. 793), The other form is more slender and. less Iloccose, the leaves about one- half the size of those of the last. This is the same as No. 173 of my western Nebraska collection. Lead City, altitude 1,700 m., July 6 (No. 795). Antennaria niargaritacea (L.) Hook. I'l. IJor. Amer. i, 329 (1833); (hiaitlialinm mariidritaceiim Jj. Sj). I'l. i, 85 (1753). Englewood, altitude 1,600 m., August 13 (No. 796). Iva xanthifolia Nutt. Geu. ii, 185 (1818). "Waste places, rare: Custer, altitude 1,600 m., August lit (No. 797). Ambrosia psilostachya DC. Prodr. v. .526 (1830). li'arc: Hot Springs, altitude 1,700 m., August 2 (No. 793). Ambrosia aitemisiaefolia L. Sp. PI. ii, 988 (1753). Custer, altitude 1,650 m., August 11 (No, 799). Brauneria pallida (Nutt.) IJritton, Mem. Torr. Club, v. 333 (1895); lUidheckia pallida Nutt. Journ. Acad. Phila. v, 77 (1834); Echinacea anijuHtifolia DC Prodr. v, 551 (1836). Prairie; Custer, altitude 1,600 m., August 1 (No. 800). Rudbeckia hirta L. Sp. PI. ii, 907 (1753). Meadows : Kochford, altitude l,(iOO m., July 12; in the Limestone District, altitude 1,900 m., July 26 (No. 801). Oue specimen was very leafy, with narrow linear- lanceolate leaves. Lepachys columnaris (Pursh) Torr. iV Or. Fl. ii,315 (1841); UndlHikin vol mini aris Pursli, Fl. ii, 575 < l.sll ). h'arc : ( inly a few specimens secured at ('uster, altitmlel,tr>Om., August 1 (No. 802). Heliantbus annuus L. Sp. PI. ii, 904 (1753). Custer, altitude 1,(>00 m., August 1 (No. 803). Heliantbus petlolaris Nutt. Journ. Acad. Phila. ii, 115 (1821). Only a few sii»; form of llio jicxt. K'oflironl. altitiidc l,(!ri() m.. .Inly 11; Hot Springs, altitudr 1,(I5() iii., August S (No. 825). Seiiecio iutegerrimus Nntt. (Jen. ii, 165 (1818). This rt'S(]iiT)lts a siiociiuen collected l)y Mr. Nicollet, Avliicli according to 'I'orrey and Gray ' is A. //(/q/crr(Hi/(N Nntt. The other specimens in the National llerhariuni eeem to helong to some other species. The ty))e specimens of Nnttall I havi^ not seen. The bracts and the base of the involucre are somewhat lieshy. I'rairie, near Squaw Creek, llennosa. altitude 1,0.50 m., .Tune 23 (No. 82(5). Senecio balsamitae Mnhl. ; Willd. Sp. PI. iii, 1908 (1804). J^eavos very thin and Avholly glabrous, bright green, the lower obovate, seriate. Lead City, altitude l,fiOO m., July (">; Rochford, altitude 1,60(^ ni., July 11 ; Custer, altitude 1.700 im., .Inly 1(> (No. 827). Senecio plattensis Nutt. Trans. Amer. Phil. Soc. ser. 2, vii, 4i:i (1H41). Hot Springs, altitude 1,100 m., June 18 (No. 828). Senecio canus Hook. IT. Bor. Amor, i, 333 (1834). This is a very variable species. Three forms were collected, one of them the typical. This is 3 to 5 dm. high, densely wocdly ; root leaves entire, broadly oblanee- olate, oblong, or spatulate;,? to 10 cm. long, 1 to 1.5 cm. wide. Battle Mountain, near Hot Springs, altitude 1,200 m., June 18; Lead City, altitude 1,700 m., July 4 (No. 8211). The second form is .somewhat like the last but greener with decidncms wool and thin leaves. It approaches .somewhat the preceding species, especially as to the involucre, which is nearly glabrous. Lead City, altitude 1,600 m., July 6 (No. 830). The third is a low form with narrow leaves, the lower narrowly spatulate or oblanceolate, 3 to 7 cm. long and about 4 nun. wide, white woolly, with more or less revolute margins. Dry table-land: Hot Springs, altitude 1,100 m., June 13 (No. 831). Carduus undulatus Nutt. Gen. ii, 130 (1818); ('7ii(iiH uuthdaliis (Jray, Proc. Anwr. Acad. X, 42 (1874). Custer, altitude 1,650 m.. August 12 (No. 8.32). Carduus undulatus ochrocentrus, nom. nov. ; Ciiicua undiihifns ochroceniriifi Gray, Proc. Amer. Acad, x, 43 (1874) ; Cirsium ochroccntnim Gray, PI. Feinll. 110 (1849) ; Cuicus ochrocentrus Gray, Proc. Amer. Acad, xix, 57 (1883). This is the northern form referred to Carduus ochrocentrus. The southern, that is, the original form, differs in being stouter and more white with broader bracts. Whether the latter is distinct from C. undulatus I am not prepared to decide. Tlie northern form is, I think, only a variety, and dilVers only in the i»rickles of the invo- lucre, which are nnich longer and stouter. Intermediate forms are sometimes seen. Custer, altituib- 1,650 ni., August 1 (No. 833). Carduus drummondii (Gray); Cn'icux druuuiitiud'i'i (iray, Proc. Anu-r. Acail. x, 40(1874). Some of the specimens are very near to the variety acaulrscciis (Jray. Mi-adous: Custer, altitude 1.6.50 m., July 16 (No. 834). Centaurea cyauus L. Si». IM. ii, !>11 (1753). Only one specimen collected : Koadside, not far from Hot S))rings, altitude 1,100 m., August 2 (No. 8^5). Hieracium canadeuse Mx. Fl. ii, 86 (1803). The specimens referred to this species have nincli thinner, narrower, and less den- tate leaves than the common form. Custer, altitude l,(r>() m.. .Inly 12 (No. 836). Hieracium umbellatum L. Sp. PI. ii. SOI (17.53). The specimens of this have fewer In-ads th.in usual. Wet meadow : l.'ai)id City, altitude 1,000 in., Juno 25 (No. 837). ' I'l. ii, 13!t. 511 Hieracium sp. A single specimen was found, together with the i)recediug, of a phmt which resem- bles it .IS to the leaves, but has the stem hispid above, and the bracts broad (No. 838). Hieracinm fendleri Schultz I5ip. I'onplandia, ix, 173 (1861). The Black Hills are outside of the supposed range of tliis species, but the speci- mens agree fully with Gray's description and with specimens in the National Her- barium and the herbarium of the University of Nebraska. Rochford, on a dry hill, altitude 1,700 m., July 12 (No. 839). Crepis nincinata (.Tames) Torr. & Gr. Fl. ii, 487 (1813); nieracinm rnnclnntum James, Long Exped. i, 453 (1823). The typical form, but with the leaves less runcinate. Hermosa, altitude 1,050 m., June 23; Whitewood, altitude 1,200 m., July 7; Kochford, altitude 1,700 m., July 11; Custer, altitude 1,700 m., July 16 (No. 840). A stouter form, 4 to 5 dm. high, with broader leaves; heads larger; involucre of thicker bracts, with the peduncles and upper part of the stem densely covered with yellowish glands. A specimen of this form in the National Herbarium is labeled variety hlspUhdosa Howell, but I can not find any description. Meadow: Kapid City, altitude 1,000 m., July 25 (No. 841). Prenaiithes raceniosa Mx. Fl. ii, 84 (1803). "Wet meadow: Custer, altitude 1,600 m., August 15 (No. 842). Agoseris glauca (Pursh) Greene, Pittonia, ii, 176 (1891) ; Troxinioii t. i, 6 (1878). Prairie: (Juster, altitude 1,600 m., August, 1 (No. X50). . 51^ CAMPANULACEiE. Legouzia perfoliata (T^.) IJiittDii. Mem. Torr. Cliil), v, :>(>!• (lS!t4); Campauida per- folUitn L. Sp. ]"1, i, 1(H) (17."):^). No corolliferous flowers were seen. Wliitcwood. .iliidKle l.ldO m.. July 7; Custer, altitiHlc l.fi.'O III., July 1.". (No. 8.")1). Campanula rotundifolia L. .Sp. PI. i. Kill (17r)3). Hot Spriuj^s, altitude 1,100 in., Juuo 17; lloriuosn. altitude l.l.'O ui.. .luue '_'2; Load City, altitude 1,700 in., .Inly 1 (No. XT-,2). Campanula aparinoides l'ur.sli, 11. i, 159 (IHll). Wet meadows: Custer, altitude l,3). ERICACEiE. Vaccinium myrtillus microphyllum Hook. Fl. ]}or. Anicr. ii, 33 (1834). riic plant ( without llowcrs or IVuit) was collected on a shaded hillside, near Lead City, altitude l,tiO() m., ,Inly (i (No. S.")-!). Arctostaphylos iiva-ursi (L.) Spreu^. Syst. ii,2S7 (ISli;")); Arlmliis iirfi-Hmi L. Sp. n. i, 30.". (1753). Common throughout the Black Hills and generally called ••kinnikiniek." In woods: Custer, altitude 1,700m., June 3 (No. 855). PYROLACEiE. Pyrola secunda L. Sp. PI. i, 396 (1753). In woods: Little Klk, altitude 1,100 ni., June 27; Load City, altitude l.GW m., Jnly r^ (No. 85fi). Pyrola chlorantha Swartz. Kongl. Vet. Acad. Ilaudl. ser. 2. xxxi, 101 (1810). Woods: Little I'.lk Canyon. altiturecediiig year: Custer, altitude l.O.'iO ni., .lune H; in liower. Sylvan Lake, altitude 1,200 m., August 19 iNo. 861). PRIMULACE.ZE. Dodecatheon pauciflorum (l)urand) (ireene, Pittcmia, ii, 72 (1889); Dndtrnthcon meadia paucijlorinn Durand, PI. I'ratt. 95 (1855). On woodeil hillsides: Custer, altitude 1,700 m., May 28 and June 2 (No. 862). A stouter form, apjtroacbing 7>. mradia, was collected at Custer, .lune 5 (No. 863). Androsace septentrionalis L. S|). PI. i, 142 (17.53). Custer, altitude 1 .ti:.() m., June 3 ; F.Ik Canyon, altitude 1,200 m., .lnno29 (No. 864). Androsace occidentalis Pursli, I'l. i, 137 (ISM). Dry taldc-land: Hot Springs, altitude 1,100 m., .lune 13 (No. 865). 513 Steironenia ciliatuni (L.) ISaudo, Ann. Sci. Nat. ser. 2, xx, 346 (1843) ; Li/simarhia ciliafa L. 8p. PI. 147 (1753). The leaves of the specimens Irom Custer are scarcely snbcordate at the base. Kochford, altitnde 1,600 m., July 11; east of Custer, ou the French Creek, alti- tude, 1.500 ra., July 22 (No. 866). Naiimbiirgia thyrsiflora (L.) Duhy, in DC. Prodr. viii, 60 (1844); Li/simachia ihijrsijlora L. Sp. PI. i, 147 (1753). "Wet places: Elk Canyon, altitude 1,200 in., July 2!i (No. 867). Centuuculus minimus L. Sp. PI.- i, 116 (1753). In Eul.y Gulch, uortliwest of Custer, altitnde 1,700 ni , Auyust 20 (No. 868). OLEACE^. Fraxinus peiuisylvanica Marsh. Arb. Aracr. 51 (1785). Along Squaw Creek, above Hermosa, altitude 1,050 m., June 22 (No. 869). Fraxinus pennsylvanica lanceolata (Borck.) Sargent, Silva Anier. vi, 50 (1894); Fraxxuuslannolata Borck. Handb. P'orstbot. i, 826 (1800). Together -with the preceding (No. 870). APOCYNACEiE. Apocyniim androsaemifolium L. Sp. PI. 1, 213 (1753). Borders of woods: Hermosa, altitude 1,100 ni., June 24; Eapid City, altitude 1,000 m., July 25; Little Elk Canyon, altitude 1,100 m., June 27; Lead City, altitude 1,700 m., July 6 (No. 871). Specimens collected in Elk Canyon, altitude 1,200 m., June 29, and at Hot Springs, altitude 1,100 m., August 3, are ambiguous between this species and A. cavuabinum. The leaves are short-petioled, and the corolla greenish white and smaller than in J. androsa-wifoJium, and the branches upright (No. 872). ASCLEPIADACEiE. Asclepias ovalifolia Dec. in DC. Prodr. viii, 567 (1844). On French Crerk, below Custer, altitude 1,500 m., July 22 (No. 873). Asclepias verticillata pumila Gray, Proc. Amer. Acad, xii, 71 (1876). Prairie: Minnekahta, altitude 1,300 m., August 6 (No. 874). Acerates angustifolia ' (Nutt.) Dec. in DC. Prodr. viii, 522 (1844) ; PoJijotus ancjnsti- folinx Nutt. Trans. Amer. Phil. Soc. n. ser. v, 20 (1833-1837). Minnekahta I'lains, altitude 1,300 m., August 6 (No. 875). Acerates \rjiridiflora -' (K;if. ) Eat. Man. ed, 5,00 (1829); Asclepias viridijlora Paf. Med.Kei). xi,360 (1808). Only one specimen Avas collected: Minnekahta I'lains, altitude 1,300 m., August 6 (No. 876). GENTIANACEiE. Gentiana acuta Mx. Fl. i, 177 (1803); Gentiana amareUa acuta Herder, Act. Hort. Petroj). 1,428 (1872). 'J'be specimen appears to be a form of this species modified by the habitat, viz, a heavily shaded hillside. The whole jilant is light green, the leaves broad and thin, 3- to 5-ribbed. Young plants can scarcely be distinguished from those of the next. The llowers are greenish yellow, occasionally a little bluish on the limb. South of Custer, altitude 1,700 m., August 15 (No. 877). 'See my remarks on this species, this volume, p. 169. -The binomial is not given by Elliott (Hot. S. Car. & Georg. 317, 1823), but he refers A8ch'2)iuH ciiidijlora to the genus Acerates. 514 Tetragonanthiis deflexus (Smitlii l\imt/<'. IJiv. (ii-n. I'l. ii, i:U (1891); Sirertia dejlera Smith, Kees's Cyol. no. S (ISl(i). In Avodds: Doadwood, altitude 1,100 in., .Inly .">; Custer, altitmle l.Tdt* ni.. Aug- ust !."> (Xo. NTS). Frasera speciosa Dougl.; Hook. 11. I'x.r. Anicr. ii, tii; (18.S8). IIi<;h barren liills: I^ead City, altitude l.TlM) ni., .luly J; I.iuieHtoue Distriet, alti- tnd.' l.iMiO III., July 25 (No. X7JI). POLEMONIACEiE. Phlox douglasii Hook. I'l. I5or. Aiuer. ii, 73 (1838). Couuuon around Hot Spring.s, aititudo 1,100 iii., .June !'> (Xo. 881). On wooded hillsides was found a peculiar Phlox, probably belonging to this spe- cies. The plant is prostrate, spreading, slender, Avith very narrow, subulate, Aveak, leaA'es, the corolla scarcely longer tliau the calyx. Hot Si>ring8, altitude 1,300 m., Juno 1.-. (Xo. 880). Phlox douglasii audicola (Xutt.) Britton, :Meni. Torr. Club, v, 269 (189.5); Phlox andirola X'utt. ; (Jray, Proc. Amer. Acad. \'iii, 2.")l (1870). Table-land: Hot Springs, altitude 1,100 in., June 14 (Xo. 882). Phlox kelseyi Britton, Bull. Torr. Club, xix, 22.") (1892). All S})eeiinen8 collected diiTer from the typical Phlox Icrheyl in having nearly Avhite instead of blue or lilac lloA\'ers. Two forms were found. One of them has long ]ea\'es 1..") to 3 cm. long and 2 to 3 mm. AA'idc, and larger tlowers on ])edicels 1 to 2 cm. long. Hot Si)riugs, altitude 1,100 m., June 13; Sylvan Lake, altitude 2,000 m., July 19 (X^o. 883). The other is more ccspitose, has shorter and broader leaves, 0.5 to 1..5 cm. long and 3 to 4 mm. Avide, and the nearly .sessile llowers haAC shorter tubes. This is evidentlj' the same as P. lont/ifolia hrerifoUa Cray,' collected by Jenney, although I liaA'c not seen that plant. My 8])eeimens were collected about 20mil(>s from .Jcnueys Stockade, in the I^imestone District, near Bull Springs, alti- tude 1,900 m., .July 26. liritton refers .Tenuey's plant to I'hlox leUejii. The original variety ?>/Tfj/'«7irt'- is to be referred to Phlox stanshiiriii (Torr.) Britton. From this Phlox kelseiji is easily distinguished by its larger llowers .and the A^ery broad, obovate lobes of the corolla (No. 884). Collomia linearis Xutt. Gen. i, 126 (1818). llermosa, altitude 1,100 m., Juno 23; IJochford, .iltitude 1,700 m., July 11; T,ead City, altitude 1,.")00 m., .July 17. The specimens from the latter place are unusually large and branching, some even 4 to ."> dm. high (Xo. 88.")). Gilia spicata capitata Cray, Proc. Amer. Acad, viu, 274 (1870). I believe that this is distinct from (1. spicata. It resembles it in foliag<', but the foiiri III' the corolla is diflerent. Dry hills or table-lands: Hot Springs, altitude l.liio in., .June 13; DeadAVood. altitude l.HOO m., .)uly ;".; Bull Sjiriugs, altitudu 1,900 m., July 25 (No. 8815). HYDROPHYIiLACEiE. Macrocalyx nyctelea (Ij.) Kuntze, Ifev. Oen. I'l. ii, t;!l(ls9t^; Ipumna in/ctrlea L. Sp. I'l.i, 160 (17."'.3). I'.dgemont, altituile l.O.jO iii., May 27; l.'ochl'ord, altitude 1,(;(M) m., .Inly II: < >re- ville, altitude 1,630 ni., .Inly 16 (Xo.887). BORAGINACEiE. Lappula virginiaiia (L.) <;rt'«'Mt% I'ittonia, ii, IM' (IM!tl); .\fiinsnHit riri/inira L. Sp. I'l.i, b'.I (17.53). Only one s]>eciiuen in bloom, loMiid near Lead City, altitude 1.600 ut., .Tuly 6 (No. 8XX). 'In Newton &. .Tenney, Geol. Surv. I'.lacU liills, 535 (1880). •fir.-iy, Syn. I'l. ii, pt. i, 133 (187S). 515 Lappula deflexa auiericana (Gray) Greene, Pittouia, ii, 183 (1891); Ecliinosper- vutm dcjiexum americamim Gray, Proc. Amer. Acad, xvii, 224 (1882). ily specimens belong to a form Avitli sliort, broad leaves and small liowors. Kare: Lead City, altitude 1,600 m., .Inly (> (Xo. 889). Lappiila floribuuda (Lchm.) Gr<'eno. IMttonia, ii, 182 (1891); Kcirnutupivmitm Jlori- binichim Lehm. I'ng. ii, 24 (1830). Tlie common form lias distinctly pinnately nerved leaves. Hot Springs, altitude 1,100 m., .June 13; Elk Canyon, altitude 1,200 m., .Tune 29; Custer, altitude 1,700m., July 16 (No. 890), At Oreville, altitude 1,6")!) m.,,Tuly 16, a form was collected wliicli differs, in hav- ing much tbiclcer, narrowly lanceolate leaves, •with !i jirominent inidrih but obsolete lateral veins (No. 891). At Kochford, altitude 1,650 m., July 11, a plant was collected, which I also refer here, although it differs considerably from the common form. It was collected in Hower only, and as the fruit is necessary for full identification. I leave it with this species. The plant is tall, 1 to 2 m. high, branched from an apparently perennial root, making big, bushy clumps of a dozen stems or more. The upper parts of the ])lant are yellowish silky, the lower somewhat strigose; the lower leaves spatulate, the upper lanceolate, thickish, with a prominent midrib, tlie lateral veins obsolete (No. 892). Lappula redowskii occideiitalis (Wats.) Eydberg, Contr. Nat. Herb. iii. 170 (1895); Juliinospermnm 7'edoirskii occidentale (Wats.) Bot. King Surv. 246 (1871). Some of the specimens resemble L. lappula in having a larger, more campanulate corolla and being more branched from the base and more leafy. The immature fruit sliows characters which place it with L.redon'slM. Edgemont, altitude 1,0.50 m., ^lay 27; Hot Springs, altitude 1,100 m., June 15 (No. 576). The conunon form w.as collected at Hot Springs, altitude 1,100 m., .Tune 13; Her- mosa, altitude 1,050 m., June 23; Custer, altitude 1,700 m., .Tuly 16 (No. 577). Oreocarya glomerata (Pursh) Greene. Pittouia, i, 58 (1887); Cytioglossinn glomera- iinn Pursh, El. ii, 729 (1814). High table-lands and hills: Hot Springs, altitude 1,100 ni., .June 13; Whitewood, altitude 1,100 m., July 7 (No. 893). Cryptauthe pattersoni (Gray) Greene, Pittouia, i, 120 (1887) ; KriinUzlia pnlleri^oni Gray, Proc. Amer. Acad. xx. 268 (1885). The seeds arc brown-spotted and less attenuate than in C. fendleri, l)nt otlierwise as in that species. The leaves are .also broader. Lead City, altitude 1,600 m., .July 6; Kochford, altitude 1,700 m., July 12 (Xo, 894). No. 895 is a small Cryptanthe, perhaps nearly related, but there are no fruits in the collection, hence it can not be determined. It looks very like some specimens in the National Herbarium labeled Knjniid,ia affinis, but it may be an undeveloped form of nearly any of the related species. Buckhorn Mountain, near Custer, altitude 1,800 m.. July 16. Myosotis verna niacrosperma (Engelm.); Miiosolin macrosjwrma Y-^ngalm. Amer. Journ. Sci. xlvi, 9S (IKI4). liare: Hot Springs, altituth^ 1,100 ni., .June 13 (No. 575). Myosotis sylvatica Holfmanu, Deutsch. Fl. i, 85 (1791). Slender, 1.5 to 3 dm. high, racemq loose, the pedicels longer than the fruiting calyx. It does not belong to the A'ariety alpcstrin, which has been regarded .as the only American form, but rather to the si)ecies. High altitudes in danij) jilaces among rocks: Sylvan Lake, altitude 2,000 m., July 19 (No. 896). Mertensia sibirica (L.) Don, Hist. Dichl. PI. iv, 319 (18.38) ; I'nlmouarUt sih'.rica L. Sp. PI. i, 135 (17.53). A single fruiting specimen, which seems to belong to this species, was collected at Roehfonl. allitiub' l,7iiO in., .Inly 12 (No. 897). 516 Merteusia paniculata (Ait.) Don. Hist. l>iclil. I'l.iv. lUS (1S:W); l'ulmo)i,iria jxin- iciilala Ait. Iloit. Kow. i. ISI (178SI). In tlM! lew .s]»ocinieiis collected the calyx is not ciliatc an.l tlie cui..lhi only li to S mm. lung. K'oclifonl, altitude 1,700 ni., July 12 (No. «t8). Merteusia lanceolata (Pursli) Dt'. I'rodr. x, 88 (181(i); /'nlmoiHina Jauceolalu VuTsh, VI. u, 729(1811). There seem to he two forni.s of thi.s .species, one with larger lloweis, ahoiit 1 cm. long, the tiihe more ahniptly widening into the campannlate limh. thicker, somewhat fleshy leaves, and more simple sl(!m. This is the more common form in the lilack Hills. Cnster, altitude 1,700 ni., .May 30 (No. SO!)). The lonii growing in western Nebraska with thin leaves of a light-green color, panicnlately hr.inchcd stem, and smaller, more funnelform llowers was found near Sylvan Lake, altitude 2.O0O m., July 19 (No. 900). Lithospermum augustifoliuin Mx. Fl. i, VAO (1803). Prairie: Hot Sj.rings, altitude 1,100 m., Juno 15; Buflah. (iap. altitu.lo l.ldOm., Juno 21 ; Custer, altitude l,r..")0 m., Angust 1 (No. 901). Oiiosmodium molle Mx, Fl. i, 133 (1803). I'raiiie: Hot Springs, altitude 1,100 m., .lune 10 (No. 902). CONVOLVULACEiE. Evolvnlus nuttallianus Roem. & Schult. Syst. Veg. vi, 198 (1820); E. arf/entciis Pur>h, Fl. i, 187 (1811). not P. Br. Prodr. (1810); E. pUosna Nutt. Gen. i, 174(1818), not Lam. Pare: collected in fruit only at Hot Springs, altitude l,I0O m., June 13 (No. 903). Ipomcea leptophylla Torr. in Frem. IMrst Pop. 94 (1843). Prairie: Hot Springs, altitude 1,100 ni., June 15 (No. 578). Convolvulus sepium L. Sp. PI. i, 153 (17.53). Pare: Custer, altitude 1,050 m., August 1 (No. 904). SOLANACEiE. Solanum triflorum Nutt. Gen. i, 128 (1818). (»n tlic railr<)al. 117 (188t!); Mimitliin Janiesii Torr. id Creek, altitude 1,000 m., June 25; Wbitewood, altitude 1,150 ni., July 7; Custer, altitude 1,600 m., August 1 (No. 927). Veronica peregrina L. Sp. PI. i, 14 (1753). My specimens are, decidedly glandular. Hills: Heiiuosa, altitude l,l(Hl ni., .luno 23; Lead City, altitude 1,700 in., July 6 (No. 928). Castilleja acuminata (I'ursli) Spreng. Syst. ii, 775 (1825); Jlartaia acitminala Pnrsh, Fl. ii, 429 (1814). "Woods: Little Elk Canyon, altitude 1,100 ni., June 27; Elk Canyon, altitude 1,300 ni., June 29; Lead City, altitude 1,000 m., July 6 (No. 929). Castilleja sessiliflora Pnrsb, Fl. ii, 738 (1814). Table-land: Hot Springs, altitude 1,100 m., June 15 (No. 930). Orthocarpus luteus Nutt. Gen. ii, 57 (1818). Meadow: Custer, altitude 1,600 m., August 1 (No. 931). VERBENACEiE. Verbena stricta Vent. Hint. Cels." t.' 53 (1800). Custer, altitude 1,000 in., August 1; Hot Springs, altitude 1,100 m., August 3 (No. 932). Verbena hastata L. Sj). I'l. i, 20 (1753). Kare: Hot Springs, altitude 1,0.50 m., .June 10 (No. 933). Verbena bracteosa Mx. Fl. ii, 13 (1803). Lead City, altitude 1,600 ni., .Inly 9 (No. 934). Verbena bipinuatifida Nutt. .lonrn. Acad. I'bila. ii, 123 (1S21). Prairie, 2 miles east of Fall River Falls, altitude 1,000 in., .lune IS (No. 9:%). OROBANCHACE^. Thalesia fasciculata (Nutt.) IJrittiui, Mem. Torr. Cluli, v, 298 (1894); Orohanche fuxiiiulata Nutt. Gen. li, .59 (1818). Jiare: Custer, altitude 1,6.50 in., Juno 0 (No. 936). Orobauche ludoviciana Nutt. (ien. ii,58 (.1818;. On tbe railroad euibaukment between Hot Springs and I'all liiver Falls, altitude 1,050 111., August >< (No. 937). LABIATE. Mentha canadensis glabrata r.entli. Lab. ISl (1833). (Jray, in tbe Synoptical Flora, cites M. horcaha Mx. as a synonym, but this plant does not agree wilb tbe description of Mieliaux's Hjiecies, wbiili perliaps is tlio typical M. canadenftin and not tbe variety. Hot Springs, altitude 1,050 m., August 3; Custci, altitude 1,0.50 in., August 20 (No. 938). 519 Lycopus sinuatus Ell. Bot. S. Car. A: Georg. i, 26 (1816). Wet meadows: Custer, altitude 1,650 iii., August 20 (No. 939). Hedeoma hispida Pursh, FI. ii, 414 (1814). Dry i)laces : Kocliford. altitude 1,700, July 11 ; Custer, altitude 1,700 ni., August 1 ; Minuekahta, altitude 1,300 m., August 4 (No. 940),- Hedeoma druniniondii Beutli. Lab. 368 (1834). Dry soil : Custer, altitude 1,700 m., July 16; Hot Spriugs, altitude 1,100 m., August 2 (No. 941). Salvia lanceolata Willd. Euuui. 37 (1809). The leaves are broadly oblong or spatulate. Custer, altitude 1,700 m., July 16; Hot Spriugs, altitude 1,100 m., August 2 (No. 942). Mouarda fistiilosa mollis (L.) Beutb. Lab. 317 (1833); Monanla mollis L. Auuen. Acad, iii, 399 (1751)). Hot Spi'iugs, altitude 1,100 ui., August 2; Custer, altitude 1,650 m., August 15 (No. 943); Eocbford, altitude 1,700 m., July 12 (No. 944). VIeckia anethiodora (Nutt.) Greene, Mem. Torr. Club, v, 282 (1894); Hyssojuis anethiodorHS Nutt. Eraser's Cat. (1813). Among buslies: Wbitewood, altit^ude 1,100 m., July 7; east of Custer, ou the Frtncb Creek, altitude 1,600 m., July 22 (No. 945). Prunella vulgaris L. Sp. PI. ii, 600 (1753). In damp woods: Wbitewood, altitude 1,150 m., July 7; east of Custer, altitude 1,600 m., July 22 (No. 946). Dracocephalum parviflorum Nutt. Gen. ii, 35 (1818). Hills: Elk Canyon, altitude 1,300m., June 29; Roebford, altitude 1,800 in., July 12 (No. 947). Scutellaria galericulata L. Sp. PL ii, 599 (1753). Ill French Creek, near Custer, altitude 1,600 m., .July 16 aud August 1 (No. 948). Stachys palustris L. Sp. PI. ii, 580 (1753 ). Two forms' were met with, one witli short, oblong leaves, smaller and darker flowers, and more hairy stem (No. 949); the other with longer, lanceolate leaves, and larger light-colored flowers (No. 1208). Lead City, altitude 1,700 m., July 7; Custer, altitude 1,700 m., August 20. Stachys aspera Mx. Fl. ii, 5 (1803). Custer, altitude 1,700 m., August 20 (No. 9i50). PLANTAGINACEiE. Plantago major L. Sp. PI. i, 112 (1753). Kuchlord, altitude 1,600 m., July 11 ; Custer, altitude 1,6.50 m., August 1 (No. 951). Plantago purshii Koem. & Sehult. Syst. iii, 120 (1818). Dry plains: Minuekahta, altitude 1,300 m., August 5 (No. 952). NYCTAGINACEiE. AUionia nyctaginea Mx. Fl. i, 100 (1803). h'are: Hot Spriugs, altitude 1,050 m., August 2 (No. 953). Allionia hirsuta Pursb, Fl. ii, 728 (1814). Two forms were met with, wliich seem very distinct, but ray collection from the Sand Hills of central Nebraska shows that they grade into each other. One has very broad, oblong-lanceolate, or ovate-oblong leaves, the stem hairy throughout. Custer, altitude 1,700 m., August 1 (No. 954). Tiie other baa narrow, lanceolate leaves, the stem hairy only at the nodes. l\ochford, altitude 1,700 m,, July 11; Hot Spriugs, altitude 1,100 m., August 2 (No. 955). 520 AUionia albida Walt. Fl. Car. 84 (1788). TIrtc aro two forms in the collection, wbiiii I refer to this speries. The material is too scanty and poor for a satisfactory determination. One form with broadly lanceolate leaves was obtained at Hot Springs, altitude 1,100 ni., August 3 (Xo.tloG). The other form, with very narrowly lanceolate or linear leaves, grew on the i>laius between Custer and Fairburn, altitude 1,400 m., .Inly 23 (No. 957). Both forms dillV-r from A. himnla in being smooth up to the ]»cdnnclc, and from J. linearis in tlio leaves, which are undulate and sparingly ciliolato on the margin, and in the pedun- cles and involucres, whi.h arc hispid. Allionia linearis Pursh, Fl. ii, 728 (1814). Custer, altitude 1,650 m., August 1; Hot Springs, altitude 1,1(M) m., August 3 (No. 058). AMARANTHACEiE. Amaranthus blitoides Wats. Troc. Anu'r. Acad, xii, L'73 (1S77). K'aiiroad i-iubanlauent, Minnekahta. altitude 1,270 iii., August 4 (No. !)t!0). CHENOPODIACEiE. Chenopodium hybridum L. Sp. PI. i, 210 (1753). One specimen, collected at Hot Springs, altitude 1,050 m., .luuo 17 (,Xo. OtJl). Chenopodium album L. Sp. IM. i. 219 (1753). Hot Springs, altitmle 1,050 ni., Juno 17 (No. 962). Chenopodium fremonti Wats. Bot. King Surv. 287 (1871). In damp woods: Sylvan I>ake, altitude 1,900 in., July 20 (No. 963). Chenopodium fremonti incanum Wats. Proc. Amer. Acad, ix, 94 (1874). Two small specimens collected near Fall Piver Falls, altitude 1,000 m., .lune 17 (\o. 964). Chenopodium leptophyllum (Mofj.) Nutt. ; Moij. in DC. Prodr. xiii, pt. 2, 71 (1819), as synonym; C. album IvplophijlUim Moq. in DC Prodr. loc. cit. Hot Springs, altitude 1,100 m., June 17 (No. 9t)5). Chenopodium capitatum (L.) Wats. Bot. Cal. ii, 18 (1S80); JUitum cajyitatiiin L. Sp. PI. i, 4 (1753). Near the railroad, at Rochford, altitude 1,6(X) m., July 11 (No. 966). Monolepis niittalliana(Poem. & Schult.) Greene, Fl. I'ran. 168(1891) ; JUitnn tiiil- talliuiiiim Poem. A:. Schult. Syst. Mant. i, 65 (1822). The leaves are more or less sinuately lobed, aud the stem more uprigiit. than in Nebraska specimens. Bullalo Cap. altitude 1,0(H) m., Juno 21; Rochford, altitude 1,600 m., July 11 (No. 967). POLYGONACEiE. Eriogonum flavum Null. Irascrs Cat. 1813. Dry hills: Hermosa, altitude 1,100 m., Juno 23; Le.id City, altitude 1,7(K1 m...luly4 (No. 96S). Eriogonum annuum Nutt. 'J'rans. Amer. Phil. Si>c. ser. 2, v, 161 (1833-1837). Hot Springs, .iltitudc 1,100 m., August 3 (No. 969). Eriogonum paucifloriim Pursh, Fl, ii, 735 (1814). The specimens agree well with the description of this species, except that th<^ invo- lucre is narrowly turbinate, anil the lobes scarcely searious-niargined, and that the Hcape is more slender aud the leaves are nearly glabrous above. Dry hills : Hermosa. altitude 1,100 m., .lune 23 (No. 970), Eriogonum multiceps Nees, in Max. Keise N. \. ii. 1 16 i isll). Gypsum hills, near Hot Springs, altitude 1,100 m., August 3 (No. 971). 521 Riimex venostis Pnrsli, Fl. ii, 733 (1814). Custer, altitude 1.700 in., Jime 5; Hermosa, altitude 1,100 ui., .hiiie 27 (No. 972). Rumex occidentalis Wats. Proc. Amer. Acad, xii, 253 (1876). Xear water: Buffalo Gap, altitude 975 ui., June 21; Custer, altitude 1,600 lu., August 1 (Xo. 973). Rumex salicifolius Weinui. Fl. iv, 28 (1821). Eoebford, altitude 1,600 m., July 12 (No. 974). Rumex ciispus L. Sp. PI. i, 335 (1753). 1 believe this is n native of the Black Hills as well as of western Nebraska. Lead City, altitude 1,600 m., Julj' 9; Custer, altitude 1,600 m., August 1 (No. 975). Rumex acetosella L. Sp. PI. i, 338 (1753). Introduced: near Whitewood, altitude 1,100 m., July 7 (No. 976), Polygonum aviculare L. Sp. PI. i, 362 (1753). Kochlord, altitude 1,600 m., July 11 (No. 977), No. 978 is a small, undeveloped, erect form which I took to belong to this species. Mr. J. K. Small, who has identified the species of Polygonum, writes : "It might be a form of aviculare, Utorale, or rumosissimum,'' Polygonum litorale Link. Schrad. Jouru. Bot. i, 54 (1799). Common alongthe railroad above Hot Springs, altitude 1,050 m., August 9 (No. 979) . Some specimens are more upright and have broad, elliiitical leaves (No. 980). Polygonum ramosissimum Mx. F]. i, 237 (1803). Hot Springs, altitude 1,050 m., August 9 (No. 982). Some luxuriant specimens, more decumbent and spreading, with thicker leaves, resemble, according to Mr. Small, a form that has been named variety lyatiilum by Engelmann in manuscrijit. Hot Spring.s, August 9 (No. 981). Polygonum sa-watcheuse Small, Bull. Torr. Club, xx, 213 (1893). Mr. Small remarks about this: "Slender form duo to the lower altitude than that of the type." Custer, altitude 1,800 m., July 16 (No. 983). Polygonum douglasii Greene, Bull. Cal, Acad, i, 125 (1885). Tall, 4 to 7 dm. high, with conspicuous, strongly nerved sheath. Custer, altitude 1,700 in., August 1 (No. 984). Polygonum lapathifolium L. Sp. PI. i, 360 (1753). Hot Springs, altitude 1,050 m., August 9 (No. 985). Polygonum emersum (Mx.) Britton, Trans. N. Y. Acad, viii, 73 (1889); Tol}j- gonum (n)q)I>ibium emersum Mx. Fl. i, 240 (1803). French Creek, east of Custer, altitude 1,400 m., July 22 (No. 986). Polygonum viviparum L. Sp. PI. i, .360 (1753). In wet place, among moss, below Sylvan Lake, altitude 2,000 m., .Inly 19 (No. 987). Polygonum convolvulus L. Sp. PI. i, .364 (1753). Railroad embankment. Hot Springs, altitude 1,050 ni., August 9 (No. 988). ELEAGNACEiE. Eleagnus argentea Pursh, Fl. i, 114 (1814). Hills in the Limestone District, near Bull Springs, altitude 1,900 m., July 27, (No. 989). Lepargyraea canadensis (L.) Greene, Pittonia, ii, 122 (1890); Ilippnithal: canaden- aia L. Sp. IM. ii, IdlM (1753). Woods: Custer, altitude 1,700 m., May 30; Little Elk, altitude 1.100 ni., June 28; Lead City, altitude 1,600 m., July 6 (No. 990). Lepargyraea argentea (Nutt.) Greene, Pittonia, ii, 122(1890); Kkaynua arloom : Custer, altitude 1,100 m., June 5; Little Elk Canyon, altitude 1,2(K) m., .June 27 (No. 1005). Another form was found scarcely I m. high with smaller, sharjjly and doubly serrate leaves, more glandular stem, shorter aments with shorter lateral lobes to the bracts. It ajjproaches the next somewhat in habit and general appearance, but evidently belongs to II. occidcti' taliH. Near a brook : Oreville, altitude 1,625 m., July 23 (No. 1006). 523 Betula glandulosa Mx. Fl. V>ov. Aujct. ii, l!St) (18(i;i). A shrub 1 t(j 1.5 iii. high. Roihlbrd, altitude 1,(500 ui., July 11' (No. 1007). Corylus rostrata Ait. Ilort. Kew. iii, 364 (1789). litre and there iu tlie hills, but not coiiimou: Elk Cauyon, altitude 1,200 m., dune 29 (No. 1008). Ostrya virgiuiaua (Mill.) Willd. Sp. PI. iv, -109 (1805); Cariylnns rirfjiiiiaua Mill. Diet. ed. 8, no. 1 U"68)- Among the foothills: Eapid City, altitude 1,000 ni., June 25 (No. 1009). Queicus macrocarpa Mx. Hist. Chen. Amer. ii, 2 (1801). In the foothills. In most places only shrubby, 3 to G ni. high, hnotty. On the u|iper Squaw Creek, east of Custer, there Avere good-sized trees. Hermosa, altitude 1, 100 m., June 21 ; Elk Canyon, altitude 1,200 m., June 29 (No. 1010). At the lirst place specimens. occurred which had more narrowly lobed leaves and a more straight and vigorous growth. Only young trees were seen (No. 1011). SALICACEiE. Salix bebbiana Sargent, Gard. A Fur. viii, 403 (1895); Salix roslrala Richards. App. Frankl. Journ. 753 (1823), not Thuil. Fl. Par. 51(3 (1790), nor Schleich (1S07); S. vayuna occidintalis Anders. Kougl. Akad. Stock. Forh. (1858), not S. occidenialls Bosc. in Koch, Sal. Com. 1(5 (1828). A shrub 1 to 3 meters high. Custer, altitude 1,700 m., May 30 (No. 1012) ; June 6 (No. 1013). In fruit aud leaf: Elk Canyon, altitude 1,200 m., June 30 (No. 1016); Hermosa, altitude 1,100 m., June 24; Custer, altitude 1,700 ni., August 16; Hot Springs, altitude 1,100 m., August 7 (No. 1018). A few specimens with thick leaves as in S. hnmilis and S. tristis were collected at Rochford, altitude 1,700 m., July 12. Even these have been refterred to .S'. rostrata by Mr. Bebb (No. 1019). SaUx discolor Muhl. Neue Schrift. Gesell. Naturf. Freuude Berlin, iv, 234 (1803). A shrub 2 to 8 m. high. Custer, altitude, 1,700 m., June 4 (No. 1014). SalLx cordata Muhl. Neue Schrift. Gesell. Naturf. Freunde Berlin, iv, 236(1803). Near water: Custer, altitude 1,7(J0 m., June 4 (No. 1015); leaves, Lead City, alti- tude 1,600 m., July 9 (No. 1017). Salix fluviatilis Nutt. Sylva, 73 (1842); S. loufjij'olia Muhl. Neue Scrift. Gesell. Naturf. Freunde Berlin, iv, 236 (1803), not Lam. K'ochford, altitude 1,650 m., July 11 (No. 1020). Populus tremuloides Mx. Fl. ii, 243 (1803). Common in the higher parts of the Black Hills. Custer, altitude 1,700 in., June 4, female llowers (No. 1021). Populus deltoides Marsh. Arb. Amer. 106 (1785); /'. mouU'iJ'era Ait. Ilort. Kew. iii, 406 (1809). Common in the foothills: Hot Springs, altitude 1,100 m., .June 17, iiuit; August 3, leaves (No. 1022). One tree, with unusually narrow crown, was found in a canyon east of Hot Springs, Augu.st 3. Of this all the leaves were longer than broad, cuneate at the base, with long acumiuation and with larger teeth than usual (No. 1023). Populus acuminata Rydberg, Bull. Torr. Club, xx, 50 (1893). This is the same as No. 372 of my western Nebraska collection, but the leaves are broader and with shorter acumination. Only three trees found, near Hot Springs, altitude 1,100 m., August 3 fNo. 1024 ). Populus aiigustifolia James, Long Exped. i, 497 (1823). Common along Little Elk Creek, altitude 1,100 m., June 28 (No. 1025). 524 ORCHIDACEiE. Corallorhiza corallorhiza (L.) Karst. Di-utscli. I'l. lis ( ISSO-l.ss:!) ; Ophri/s ,ornl- lorhiza ].. Sp. I'l. ii. 94.", (175:?). Little Elk Canyon, altitnilc 1,1(»0 in.. .luiio I'T : I.rad C:ity. altitude l,tiU(» ni.. July 6 (No. 1026). Corallorhiza inultiflora Nutt. .Jouru. Arad. I'liila. iii, 138 (1823). Klk Canyon, altitmle 1,300 ni., .June 29; Lead City, altitude 1,600 ni.. July 1 ; Cus- ter, altitude 1,600 ni.. .Inly 16; Sylvan Lake, altitude 2,0(X) ni.. July 19 (No. 1027). Habeuaria liyperborea (L.) R. Br.; Ait. Hort. Kew. ed. 2, v. 193 (1813); Orchis hiiperhorca L. Mant. 121 (17()7). Wet places: Lead City, altitude 1,600 ni., July (i; near llarney.s IVak, altitude 2,000 m., July 20 (No. 1028). Habeuaria bracteata (Willd.) R.' Br. ; Ait. 1 lort. Kew. ed. 2, v, 192 (1813) ; Orchis bracleata V.'illd. Sp. PI. iv, 34 (1805). Wet places in woods at liigh altitudes, near llanieys I'cak, altitude 2.000 ni., - July 20 (No. 1029). Gyrostachy.s romanzoflfiana (Cliani.) MacMillan, Metasp. Minn. Val. 171 (1892); Spiraiithi:-; romanzoljiaiia Cliani. Linna^a, iii, 32 (1828). Ruby Glen, near Custer, altitude 1,700 ni., Angnst 10 (No. 1030). Peramium repens (L.) Salisli. 'I'rans. Hort. Soo. i, 301 (1812); Sdliirinm rcpciis L. Sp. I'l. ii. 015 (17.53). Only two specimens Ibund : below Sylvan Lake, altitude 1,900 ni.,.Iuly 10 (No. 1031). Cypripedium parviflorum Salisb. Trans. Linn. Soc. i, 77 (1701). In woods: Elk Canyon, altitude 1,200 ni., Juno 28 (No. 1032). IRIDACEiE. Iris missourieusis Nutt. Jouru. Acad. Pliila. vii, 58 (1834"). This is the /. tolmeiaita Herbert, of Newton and Jenuey's Report. Collected in fruit only: Piedmont, altitude 1,100 ni., June 27; Roclifonl, altitude 1,600 ni., July 12 ; Prin^le. altitude 1,500 m., August 5 (No. 1033). Sisyrinchium bermudiaua L. Sp. PI. ii, 054 (1753). Among the foothills: Hot Sjnings, altitude 1,100 ni., .June 19; Klk Canyon, altitude 1,200 m., June 29 (No. 1034). LILIACEiE. Allium cernuum Roth, in Roeni. Arch. Hot. 1, pt. 3, 40 (179X), All specimens of this siiecies, in tiie National Herbarium, from the Rocky Mountain region have narrow and aj)parently channeled leaves; those Crom the eastern I'nited States have broad and llattened leaves. I do not know which form should lie regarded .as the typical one, as I have not seen the original description. The descrip- tion and ligure in Curtis's Botanical Magazine agree with the specimens of this col- lection iind, as far as I can judge, with all from the Rocky Mountain region. There the leaves are represented as half-round and channeled, not as "sharply keeled"' as they ;ire de8<;ribed in (iray's Manual, ed. 6. In mine they are not kel^led at all. Bull SjiringH, altitude 1,0(X) m.. .Inly 26; Custer, altiliule l,(ino m.. August 1; Hot Sjirings, altitude 1,100 m., August 3 (No. 1035). Allium geyeri Wats. Proc. Amer. Acad, xiv, 227 ( 187!t). Tills, as also the next, is describ<'d as having cresteil cjipsnles. The cn-sts are, hoivever, easily overlooked, being 2 small lobes on ea0 m., .Inly 26 (.No. 1U36). \ 525 Allium reticixlatum Don, Mem. Wern. Soc. vi, 30 (182(i-1831), Edgemont, altitude 1,050 m., June 13 (Xo. 1037). Leucocrinum montanum Nutt. ; Gray, Ann. Lye. X. Y. iv, 110 (1837). Common around Custer, altitude 1,600 to 1,700 m., ISIay 30 (No. 1038). Polygoiiatum biflorum commutatum (Koem. A: Schult.) Morong, Bull. Torr. Club, XX, '180 (1893); ConvaJIaria commutata Rocni. A: Scliult. Sy.st. vii, 1071 (1830). Lead City, altitude 1,600 m., July G (No. 1039). Vagnera aniplexicaulis (Nutt.) Greene, Man. Lay Tve<;-. 316 (18!M); Sniildcina anqitejUaitlis Nutt. Jouru. Acad. Phila. vii, 58 (183-1). Wooded hilLside: Lead City, altitude 1,600 m., July 6 (No. 1010). Vagnera stellata (L.) Morong, ]\Iem. Torr. CluT>, v. Ill (1894) ; ('(mralho-'ut sicllata L. Sp. I'l. i, 316 (1753). Rare: Klk Canyon, altitude 1,200 m., June 29 (No. 1042). A form with narrower, conduplicate leaves and s]i,u;litly longer pe (No. 1090). Carex retrorsa Scbwein. Anu. Lj-c. N. Y. i, 71 (1821). IJare: in wet luoadow, near Custer, altitude 1,6.")0 m., July If. (No. lOiH). Carex dew^eyana Stliwein. Ann. Lye. N. Y. i, (>."> (1821). IJaro: to-,'etlier with last, July 16 (No, 1092). Carex aurea Nutt. Gen. ii, 205 (1818). Hills near Load City, altitude 1,600 ni., July 6 (No. 1093a). Carex varia Mnlil. ; Wahl. Kongl. Sven. A'et. Akad. Handl. sor. 2, xxiv, l.-)9 (18^3). Wet places in Klk Canyon, altitude 1,200 m., Juno 29 (No. lOiU). Carex laxiflora blauda (l)ewoy) Roott, 111. 37 (18.")8); 0. hlatula Kowoy, Amer. Journ. Soi. x, 45 (1826). Sylvan Lake, July 18 (No. 1095). Carex tribuloides bebbii (Olney) P.ailey. ]M ni., July 18 (No.nOO). Panicum crus-galli L. Sp. PI. i, 56 (1753). A low and smooth form. Hot Springs, altitude 1,100 m., Juno 13 (No. 1101). Setaria viridis (L.) Peauv. Agrost. (1812); I'anirum rir'uh L. Sp. PI. ed. 2, i, 83 (1762). In the spceimens collected, the bristles are nnusually long and generally i)uri>li.sh. Railroad embankment near Minuekahta, altitude 1,270 lu., August 4 (No. 1102). Spartina cynosuroides (L.) Willd. Enum. 80 (1809); iMutiiUs ciiiiosiiriti~> (1753). In a pond north of Custer, altitude 1,6.50 m., July 16 (No. 10!(3/»), Andropogon provincialis Lam, Encycl. i, 376 (1783). A glaucous form a])proaching J. hallii. Minnekabta I'lains, .iltitude 1,300 m,, August 5 (No. 1104). 529 Andropogon scoparius Mx. Fl. i, 57 (1803). A -wliolly smooth form, tufted, Avitli flattened, sheaths. Miuuokahta Phiins, alti- tude 1,300 ni., August 5 (No. 1105). Phalaris arundinacea L. Sp. PI. i, .55 (1753). In a stream near Buffalo Gap, altitiule 975 ni., June 21 (No. 1100). Savastana odorata (L.) .Scribncr, Mem. Torr. Club, v, 31 (1894); fMciift odoraius L. Sp. PI. ii, 1018 (17.53). Rare: Priugle, altitudes 1,500 m., August 5 (No. 1107). Alopecurus geniculatus fulvus (Smith) Scribn. Mem. Torr. Club, v, 38 (1894); A. fiih-us Smith, Engl. Bot. t. 1467 (1793). . Connuou : Elk Canyon, altitude 1,200 m., June 29; Rochford, altitude 1,6.50 m., July 11; Custer, altitude 1,600 ni., July 16 (No. 1108). Phleuni pratense L. Sp. PI. i, 59 (1753). Nfar a brook, south of Lead City, altitude 1,600 m., July 9 (No. 1109). Stipa spartea Trin. :\rem. Acad. St. Petersb. ser. 6, i, 82 (1829). ■ Hills: Custer, altitude 1,700 m., August 16 (No. 1110). Stipa comata Trin. & Rupr. Mem. Acad. St. Petersb. ser. 6, v, 75 (1842). Hills: Custer, altitude 1,700 m., August 16 (No. 1111). Stipa viridula Trin. Mem. Acad. St. Petersb. ser. G, ii, 39 (1836). Hills: Hot Springs, altitude 1,100 ni., August 3 (No. 1112). Stipa lichardsonii Link, Ilort. Berol. li, 245 (1833). This is the true S. richardsouii Link, according to Prof. F. LamsonScribner, not the plantso named in Gray's Manual, AvLichis a distinct species, S.macoiinii Scribner. As most descriptions refer to this latter, I at lirst thought that my plant was a new- species and described it as folloNvs: Culms tufted from a short rootstock, slender, 6 to 9 dm. high, smooth; root leaves 1.5 to 2.5 dm. long, stiff, involute, from a loose sheath, minutely scabrous; panicle of slender, llexuoso capillary branches, 1 to 1.5 dm. long, which are generally in pairs; outer glumes ovate, membranaceous .above, hyaline and acute, unequal, both 3-nerved, purplish when young; flowering glumes only 4 mm. long, black when mature, thinly hairy all over ; awn 15 to 25 mm. long, bent at the middle, the lower half twisted, slightly hairy. It much resembles S. avenacea, but has a grain of only two-thirds the size and an awn scarcely one-half as long. On Avooded hills: Rochford, altitude 1,700 in., July 12; Custer, altitude 1,600 m., August 19 (No. 1113). Oiyzopsis asperifolia Mx. Fl. i, 51 (1803). Both this and the next are wanting in Coulter's Manual. Sylvan Lake, altitude 1,800 m., June 8 (No. 1114), Oryzopsis juncea (Mx.) B. S. P. Prel. Cat. N. Y. 67 (1888) ; Siipa juiuea Mx. Fl. i, 54 (1803). Together with the preceding (No. 1115). Oryzopsis micrantha (Trin. & Rupr.) Thurb Proc. Acad. Phila. 1863, 78 (1863); Urachne micraniha Trin. & Rupr. Mem. Acad. St. Petersb. ser. 6, v, 16 (1842), Rare: Elk Canyon, altitude 1,200 m., June 29 (No. 1116). Oryzopsis cuspidata (Nutt.) Benth ; Vasey, Grasses U. S. 23 (1883); Eriocoma ciis- pldaia Nutt. Gen. i, 40 (1818); Oryzopsis vumhranacea (Pursh) A'asey, Grasses S. W. pt. 2, t. 10 (1891); Sfqm membranacca Pursh, Fl. ii, 728 (1814), not L. In canyons: Hot Springs, altitude 1,100 m., June 13 (No. 1117). Aristida fasciculata Torr. Ann. Lye. N. Y. i, 154 (1824). Custer, altitude 1,700 m., August 16; Hot Springs, altitude 1,100 m., August 3 (No. 1118). 530 Muhleiibergia racemosa ( Mx. ) ]'>. S. 1'. ]'iil. Cat. N. Y. (57 (1.S.SS) ; Atjrosth raccmosa Mx. Fl. i, 53 (1803). A tall iiiul leafy loriii which may perhaps l>e relerretl to the varioty ramosn. Coni- nioii on rrench Creek, altitude 1,6(X) in., July 22 (No. 1120). A few specimens were collected near Custer, altitude 1,100 ni., August 1, which dilVer in beiny; more slender and in the empty glumes having longer awns (No. 1121). Sporobolus cryptandrus (Torr. ) (>ray, Man. ."i7t) (1848) ; Aqroatis rriiptaudru Torr. Ann. Lye. N. Y. i, 151 (1824). Talde-lands: Hot Springs, altitude l.ldO m.. August 10 (No. 1122). Sporobolus heterolepis (iray. Man. cd. i, 57ti (1848); Vilfn In terolcpin (Ir.iy. Aun. Ly<'. X. Y. iii, 233 (1835). IJare: Pringle, altitude 1,500 m., August 5 (No. 1123 1. Sporobolus cuspidatus (Torr.) Scribuer, Bull. T(ur. Club x, 63 (1882); Vilfa citx)>i(I(ita Torr. ; Hook. Fl. lior. Amer. ii, 238 (1840). In Gray's list, Newton tS: Jenney's Report.' Agrostis alba L. Sp. PI. i, G3 (1753). In wet meadows below Custer, altitude 1,000 m., August 1 (No. 1124). Agrostis exarata Triu. I'nitl. 207 (1824). Kare: Hot Springs, altitude 1,050 ni., August 10 (No. 1125). Agrostis hiemalis (\Valt.) B. S. P. Cat. PI. N. Y. 08 (1888); Cornncopuv hi/emalis Walt. Fl. Car. 74 (1788). teste Mx. The specimens have broad, upright loaves. Wet meadow : Custer, altitude 1.000 m., July 16 (No. 1126). Calaniagrostis canadensis Mx. Beauv. Agrost. 15 (1812) ; Aniiido canadentiis Mx. Fl.i,73.(1803). In my specimens the leaves are more or less invcdute. Along Fall Kiver. Hot Springs, altitude 1,050 m., August 10 (1128). Calaniagrostis canadensis dubia (Seribner) Vasey, Contr. Nat. Herb, iii, 80 (1892) ; iJeycuj-ia diihia Seribner, Bot. (iaz. xi, 171 (1886). Wet meadow, below Custer, altitude 1,600 m., August 16 (No. 1127). Calaniagrostis neglecta (Khrli.) Caertn. IT. Wett. i, 01 (179!t); Arundo ncglccta Ehrh. I'.eitr. vi, 137 a7!tl ). Kare: Hot Springs, altitude 1,050 m., August 3 (No. 1129). Calamagrostis sylvatica americana Vasey, Coutr. Nat. Herb, iii, 83 (1892). Very probably this is a distinct species. It ditVers much from C. sylvatica of Europe. Woods: Po. hford, altitude 1,650 m., .July 11 (No. 1130). Calaniovilfa longifolia (Hook.) Hack. True fir;is.ses, 113 (1890); ('alamatirostis longifolia Uook. Fl. Bor. Amer. ii, 241 (1810). Hot Springs, .iltitude 1.100 m., August 9 (No. 1131). Avena striata Mx. Fl. i, 73 (1803). In woods: Elk Canyon, altitude 1,200 in.. .Iuu(> I'.O; Custer, altitude 1.700 m., July 10 (No. 1132). Danthonia spicata (L.) Beauv.; Poem. A: Schult. Syst. Veg. ii. CtOO (1817) ; Arena spitftld L. Sji. PI. i, SO (1753). In woods, not uncommon: Kochford, altitude 1,70(1 in.. .Inly 12; Custer, altitude 1.(;.50 m., August 16 (No. 1133). Schedonnardus paniculatus (Nutt.) Trelease; Branner A: Coville, Rep. fJeol. Siirv. Ark. 18SS, i>t. 4, 236 (1891); Leptiirim paninilaliis Nutt. Gen. i, 81 (1818). Very rare: Hot Springs, altitude 1,100 in., June 19 (No. 1134). 'Geol. Surv. lUack Hills. 537 (1880). 531 Bouteloua hirsiita Lag. Var. Cieuc. y I^itter. ii, |>t. 4, 141 (1S05). Prairies: Ifot Springs, altitude 1,100 in., Juno 111 { Xo. lloS). Bouteloua oli^ostachya (Xutt. ) Torr. ; Gray, I\Ian. 0(1.2,553 (1856); Jllierojioijon oJigosiachyiis Xutt. Gen. i, 78 (1818). Prairies: Hot Springs, altitude 1,100 ni.. .]nuo 11) (X'o. 113(5). Bouteloua curtipendula (Mx.) Torr. in Emory, Mil. Recon. 153(1848); Chloris cnrtipendiila. Mx. Fl. i, 59 (1803). Rare: Hot Springs, altitude 1,100 m., .Tune 19 (No. 1137). Bulbilis dactyloides (Nutt.) Raf. ; Kuntzo, Rev. Gen. PI. ii, 763 (1891); Sesleria (ladijloidcs Xutt. Gen. 1, 65 (1818). Prairies: Hot Springs, altitude 1,100 in., June 13; on the Frencli Creek, oast of Custer, altitude 1,400 ni., July 18 (Xo. 1138). Kceleria crlstata (L.) Pors. Syn. 1,97 (1805); Aira cristala L. Sp. PI. i, 6-3 (1753). Connnon: Hot Springs, altitude 1,100 m., .June 18; Elk Canyon, altitude 1,L'00 m. Juno 30; Lead City, altitude 1,700 m., July 9; Rocliford, altitude 1,700 m., July 12 (No. 1139). Eatouia peunsylvanica (DC.) Gray, Man. ery .soil : Hot Springs, altitude 1,100 m., June 13 (Xo. 1147). Poa nevadensis Vasey, Bull. Torr. Club, x, 66 (1883). Oil the railroad ombankiiumt above Custer, altitude 1,6.50 m.,.Iuly 16 (Xo. 1148). Togetlier witii the more typical form, another was growing that had a very thick and dense i>ani< lo 10 to 15 cm. long and over 2 cm. wide, and large 5- to 8- flowered spikelets, about 1 cm. long, on a short pedicel (Xo. 1149). Poa annua L. Sp. PI. i, 68 (1753). IJare: Elk Canyon, altitude 1,200 m., June 29 (Xo. 11.50). Poa pseudopratensis ' Scribner A: lvydl)erg, sjt. nov. Pi,. XX. (.'ulms croit. 1 to 2 feet higli from a croepiug lootstock. Sheaths smooth or very 'Tho dcscrijjtion of this species is drawn by Prol'. F. L.amsou-Scribuer. 532 minutely scabrous; ligule scarions, acute, nbout 2 liucs long, decurrent; leaf blade' Hat, 1 to '^ lines wide, those of tbo culm 1 to 3 incbcs long, those of the sterile shoots G to 10 inches long, miduervc prominent beneath, smooth on both surfaces except near the rigid acute tips, the distinctly cartilaginous margins scabrous. Taniclc 2 to 4 or 5 (usually about 3) inches long, the scabrous branches at Jirst nearly erect, widely spreading in anthcsis; spikelets 3- to 5-llo\vered, 3 to 4 lines long, usually much longer than the rough pedicels; empty glumes nearly equal, 3-nerved, broadly lanceolate, acute with scarions margins and tips, the lOm., .Inly 1(5 (Xo. 1151), No. 1272 from the Sand Hills of central Nebraska is the same. It has also been col- lected by .John Macoun at Cypress Hills, I>ritish America, in August, 1880, and l>y Mrs. S. B. Walker at Castle Kock, Colo., in 1890, Poa pratensis L. Sp. PI, i, 67 (1753), A variable species, the extreme forms of which seem very dilVercnt from each othcv. One form, very low and tufted with Aery narrow leaves and small spikelets. was found near Lead City, altitude 1,(300 m,, .July 6 (No. 1153), A form 5 to 8 dm, high, with broad and long leaves (15 to 20 cm, long and G mm. wide), and very largo spikelets was collected at Hot Springs, altitude 1,050 m,, .June 13 (No, 115G), A similar one, but with narrow panicle as in P. scvotina, Avas found iu Elk Canyon, altitude 1,200 m., June 30 (No, 1157), These are perhaps distinct from V. pratensis. Poa nemoralis L, Sp, PI. i, 69 (1753). Several forms were collected, which have all been referred to this 8]>ecies by Pro- fessor Scribner, One is a low plant approaching variety stricta, but having a more open panicle. It resembles P. casia collected by Rushy in Arizona, Hot Springs, altitude 1,0.50 m,, .lune 14 (No, 1155). A form that by several has been mistaken for i'. 8(ro/iHrt was collected at Lead City, altitude 1,600 m., .Inly G; Custer, altitude 1,700 m,, August 1 (No. 11.58), It has stiff leaves and spreading panicle, P.scrotina of C. C, Parry's collection and perhaps of Watson, King Survey collection, is the same. Another form is like the last, but with smaller and light-colored s])ikelet8 and broader, more flaccid leaves. In a wet ]dace: Rapid City, altitude 1,000 m., .Tune 25 (No, 11.59), A slender form with >si)reading panicle, small, light-green spike- lets, and longer ])edicels was mistaken for P.ahuchs. Lead City, altitude 1,G00 ra., July G (No. IIGO). Panicularia nervata (Willd.) Kuntze, Kev. (leu, PI. ii, 783 (1891); Poa uerrata Willd. Sp. PI. 1,389(1798). In wet meadows: Whitewood. altituerings, altitude 1,100 m., .Tune 13 and August 9 (No, 1177.) Elymus dasystachys Trin. ; Ledel). Fl. Alt. i, 120 (1831). The specimens in the collection have much shorter spikes and larger and more hairy spikelets than in the Siberian form. lOlk Canyon, near Runkels, altitude 1,300 m., .liine 30 (No. 1178). Hordeum jubatum L. S]). PL i, 85 (1753). Custer, altitude 1,650 ni., July 16 (No. 1179). CONIFERiE. Juniperus communis sibirica (Buig.sd.); Jiniipenia sibirica Biirgsd. Anl. Erz. Anpll. Holzart. ii, 272 (1787); ./. commHuU alpina Gaud. Fl. Helv. vi, 301 (1830). U'lie name of this plant has been changed lately by botanists in this country to J. vttiiii Willd.' Willdenow cites J. sibirica Burgsd. as a synonym. I have not been iSp. PL iv, 854 (18U6). 534 able to sec l}nrp;s(lorr.s (>iij;iiuil (lescriptioii, l)iit Ihu variety was aln-ady known auot. Cal. ii, 126 (1880). Common tbrougliout tbo Black Hills. Tbe X^ortberii Hills were formerly covered witb forest, in wbicb tbis was tbe i)redouiiiiant speines, but a largo ])ortion of tbe tract bas been devastated by mining companies and sawmill operators. Hot Springs, altitude 1,100 m., June 17 (Xo. 1183). Picea canadensis (Mill.) B. S. P. Cat. PI. X. Y. 71 (1888); Abies canadensis Mill. Card. Diet. od. 8, no. 4 (17G8). Xot uncommcni in tbe biglier bills, especially on the nortliern sides. Fruit: Kocb- ford, altitude 1,G00 m., July 12 (Xo. 1210 7;). SBLAGINELLACEJG. Selaginella rupestris (L.) Spring, in Mart. Fl. Bras, i, pt. 2. 118 (1810); Lyctqio- dinm riiiwstrc L. Sp. PI. ii 1101 (17.53). Ou dry bills; local: Custer, altitude 1.700 m., .luuc (! (Xo. 1184). LYCOPODIACE.2E. Lycopodiuni obscuruni 1-. Sjt. PI. ii, 1102 (17.53); /,. ilcndroidrum Mx. Fl. ii, 282 (1803). Micbaux's sjiecies seems tr) be tbo true L. ohscuinm I... Klk Cany«)U, altitude 1,200 m., June 20 (Xo. 1185). OPHIOGIiOSSACEiE. Botrychium matricariaefolium (?) A. Br. in Doell, K'litiu. Fl. 21 (1813). It seems to stand nearest tbis species, but tbe sterile frond is sessile. I took it to be a form of />'. bonalc Milde, witb tbe description of wbicb it agrees quitti well. It dilli-rs, bowevor, from European si)ecimens in tbe Xational Herb.irium, in tbe more slender babit, and in tbo smaller and le.ss crowded divisions of tbe sterile frond, "Hort. Kcw. iii, 411 (1789). «Mctb. PI. Hort. and Ag. Marlnirg, tiil'.t (1701). 535 ■wliicli is ovate-obloug iu outliue, not broadly triaugnlar-ovute. Ouly two specimens (15 to 20 cm. bigli) Avere collected by me, on a shaded hillside south of Custer, alti- tude 1,700 nu, August 15. A few specimens were also collected by Prof. A. F. Woods and one of the students of the University of Nebraska. The specimens are of a form that seems to be iuteiiuediate between J'>. hiuariii, 11. horeulc, 11. lanceulatum, and /»'. matricana/olium. It may be a new species, but the material is too meager to warrant a publication (No. 1186). POLYPODIACEiE. Polypodiuni vulgare L. Sp. PI. ii, 1085 (1753). Common iu crevices of rocks around Custer, altitude 1,700 m., July 18 (No. 1187). Polypodiuni vulgare rotundatum Milde, Fil. Eur. &, Atlan. 18 (1867). It dirt'ersfrom the jireccHling in its short fronds with rounded lobes and its larger, more confluent sori. Wheelers Expedition, No. 992, and Watson's No. 1357, belong also to this variety, which has not hitherto been reported for America. In crevices: Custer, altitude, 1,700 m., July 16 (No. 1188). Cheilauthes gracilis (Fee) Mett. Abh. Senck. Nat. Gesell. iii [reprint 36j (1859); Myriopteris gracilis Fee, Gen. Fil. 150 (1850-1852). On exjwsed rocks: Hot Springs, altitude, 1,100 m., Juno 14 (No. 1189). Pellaea atropurpurea (L.) Link, Fil. Hort. Berol. 59 (1811) ; Ptcris atroinirpurea L. Sp. PI. ii, 1076 (1753). Canyon near Hot Springs, altitude 1,100 m., June 14 (No. 1190). Pellaea breweri Eaton, Proc. Amer. Acad, vi, 555 (1865). The specimens in this collection have fronds that are decidedly coriaceous, a modi- fication iirobably duo to the exposed locality in which they grew. I took them first to be a depauperate form of P. atropurpurea, but the divisions even of the fertile fronds are broadly ovate, the rachis bright brown instead of purplish black and without scales. They are brittle and when old show the depressions that make them look as if articulated, a characteristic of P. hreweri. The fronds are 0.5 to 1 dm high from a tufted, thick rootstock, once pinnate, of 5 to 9 pinna- ; pinua>, 1 cm. or more long, oval or ovate, entire, or the lower witli a small lobe on the upper side. In crevices of exposed limestone rocks, generally on the sunniest side: near Bull Springs, altitude 1,900 m., July 27 (No. 1191). Pteris aquihna L. Sp. PL ii, 1075 (1753). Custer, altitude 1,700 m., August 19 (No. 1192). Asplenium trichomanes L. Sp. PI. ii, 1080 (17.53). Crevices of rocks below Sylvan Lake, altitude 1,900 m., August 18 (No. 1193). Asplenium septentrionale (L.) Holi'ni. Deutsch. Vl. ii, 12 (1795); Jcrosliclium stptentrionuh L. Sp. PI. ii, 1068 (1753). Crevices of rocks, esi)ecially on the north side of the mountains: Custer, altitude 1,700 m., June 5 and August 16 (No. 1194). Asplenium filiz-fcemina (L.) Bernh. Schrad. Nenes .Journ. Bot. i, pt. 2, 26 (1806); roli/podiutn fdix-fwmina L. Sp. PI. ii, 1090 (17.53). Conunon around Sylvan Lake, altitude 2,000 m., July 20 (No. 1195). Phegopteris dryopteris (L.) Fee, Gen. Fil. 243 (1850-1852); Polypodiuu dnjuplcria L. Sp. P]. ii, 1093 (1753). In dark woods near Custer, altitude 1,700 m., August 19 (No. 1196). Dryopteris filix-mas (L.) Schott, Gen. Fil. (1834); Poly podium JiUx-mas L. Sp. PI. ii, 1091 (1753). Among rocks: Kochford, altitude 1,200 m., .luly 12; Buckhorn Mountain, near Custer, altitude 1,800 m., July 16 (No. 1197). 536 Cystopteris fragilis (L.) Bonili. Sclinwl. Xeiies Joiirii. Hot. i. pt. 2, 27 (1806); J'oli/podiuiii/rat/ilc L. Sp. I'l. ii, lOiU (1753). Tlironyliout the lihuk Hills: Little Elk, iiltitmlo 1,10() ni., Juno 27; Lcail Cit\, altitude l,(iOO m., July 6; Custer, ivltitude 1,700 m., Auj^ust 15 (No. 119«). "Woodsia oregana Katou, Can. \at. ii, 90 (1<^65). Coiiimou tliinughout the Black Hills: Ileruioea, altitude 1,100 ni., Juno 2'A; Klk Canyon, altitude 1,200 ni., June 29; Custer, altitude 1.7110 in., August 10 (No. IIO;)). "Woodsia scopulina Eaton, C:in. Nat. ii, 90 (1865). On -vvoodrd hillsides south of Custer, altitude 1,700 ni., August 10 (No. 1200), Onoclea sensibilis L. Sp. Tl. ii, 1062 (1753). lu (Cray's list, Xewtou A: Jenney's Report.' Also collettfd by I'rof. .J. A. Williams, near Kapid City. Onoclea struthiopteris (L.) HotVui. Dcutsch. I'l. ii, 11 (1795); O-smmuhi slruthiop- tcris L. .Sp. PI. 1066 (1753). In Gray's list only. EQUISETACEiE. Equisetuni arvense Ij. 8p. PI. ii, 1061 (1753). Unusually robust specimens, in damp woods below Sylvan Lake, altitude 1,800 in., Juno 8 (No. 1201). Equisetum sylvaticum Ij. Sp. PI. ii, 1061 (1753). With the preceding, June 8 (No. 1202). Equisetuni laevigatuni A. Br. ; Engelni. Anier. Journ. Sci. xlvi, 87 (1844). The two forms collected in Nebraska were also found here. Tlie more robust with sessile spike, No. 1260 of my Nebraska collection, was collected in Elk Canyon, alti- tude 1,200 ni., June 29 (No. 1203). The other one, of the same form as No. 1283 of the Nebraslva collection, was found at Hot Springs, altitude 1,059 ni., August 3 (No. 1204). ' Geol. Surv. Black Hills, 537 (1880). IIlTDEX. Page. Abies 534 Acer 490 Aceratea 513 Achillea 509 Acrosti^ihum 535 Actffia 483 Actinella 509 Adorium 501 Adoxa 503 Agoseris 511 Agriraonia 497 Agropyron 533 Agrostia 530 Aira 531 A 11 ionia 519, 520 Allium 524,525 A loi)ecuru3 529 Alsine 488 Aiiiaranthua 520 Ambrosia 508 Amclancliier 497 Amelhis 50S Ammogeton 511 Amorpha 491 Andropogon 528, 529 Androsace 512 Anemone 479 Antennaria 507, 508 Antherais 509 Antiirhinum 517 Aplopappus 505 Apocynnm 513 Aquilegia 480, 481 , 482 Arabia 484 Aralia 502 A rbutus 512 Arctostaphylos 512 Arenaria 488 Argemone 483 Aristida 529 Amira 509 Aronia ' 407 Arleinisia 509 Arundo S30 Aaclepiaa 513 Aspk-nium 535 Aster 506 Ast ragalna 491, 492, 493 A theropogon 5S1 Avcna 530 Balaamorbiza 50!) Bartonia 501 13144— No. 8 0 Page. Bartsia olS Balrailiium 480 Beckmannia 528 Berberis 483 Berula 502 Betula 522, 523 Bidens 509 Blitum 520 Bot rycbium 534 Boutelona 531 Brassica 485 Brauneria 508 Bromus 533 Bulbilis 531 Buphihalmum 509 Bursa 486 Cactna 501 Calamagrostia 530 Calamovilfa 530 Callitriche 499 Calochortus 525 Camelina 486 Campanula 512 Capiioides 483, 484 Carduus 510 Carex 527, 528 Carpinus oiS Carum 501 Castilleja 518 Catabrosa 531 Ccanotbus 489, 490 Celastrus 489 Celt is 522 Centaiirea 510 Cent line nlua 513 Cerastiiim 488 Cerasus 495 Cercocarpus 496 ChcerophyUinii 502 Cheilanthes 535 Cheiran thus 4S5 Chenopodium 520 Chlong 531 CltnjKocoma 506 Chrysopsis 505 Cicuta 502 CiTv.xa, 501 Cirnmm 510 Claytonia 489 Clematis 479 Cleome 454,486 Cnicus 510 I n. Page. Collinsia 517 Colloinia 514 Coniaiiiira 522 Con 1(1 Ua ria 5i'o Convolvulus 516 Corallorliiza 524 Corn ncopitv 550 Corniis 5112, r.03 CoiT/dalis 433, 4S4 Coi y Ills 52:i Crat ir gu8 497 Crepis 511 Croloii 522 Cryjit ant he 515 Cyuiopterus 502 Cyno(jhiisSum 51.'i Cyperns 526 Cypripetlinm 524 Cyrtorhyncha 480 Cystopteris 536 Cytims 400 Dactylis 5:'S.5:J1 Balea 401 Danfhonia 530 Delpli i;ii urn 482 Deyeuxia 5S0 Disponim 525 Dodecalliion 512 Don ia 505 Draba 484 Dracoceplialum 519 Dryoptcris niJS Dysodia 509 Eatonia 531 Echinacea 50H Echinospermu III 515 Edosmia 501 ileay:on iim 520 Erysimum 485 Euphorbia 522 Eut hamia 506 Evax 507 Evolvnlua 516 Eistiica 532 lihi^o 507 Fragarirt 496 I'rasiTa 514 Fraxiniis 513 Gailhmlia 509 Galium 504 Gaiira 5no Gay opliy t inn 500 Geiitiiina 513 Geranium 489 Geiim 496 Gilia 5U Page. Glycyrrhlza 494 Gnaphalium 507.508 Grat iola 5 1 8 Grindelia 505 Oynmandra 518 Gyrostacliys 524 Uabi-naria 524 Hedeoma 519 Iledera 400 Hedysarum 494 Ileliantliella 508 Ileliantliomuni 486 Helianthus 508,509 Ilindicandra 522 Hcracleum 502 Heucliera 498 H ieraciuni 510.511 Jlippoplia'e 5il Jlolcxig 529 Hordeum 533 Huniulus 522 Hj'nienopoppns 509 Hypericum 489 Hysfnpus 519 Iponicea 514, 516 Iris 524 Iva 508 Jacksr.nia 486 Juncoides 526 Juncus 526 Juniperus 533. 534 Koeleria 531 Kty)iilzkia 515 Kiihnia 504 Kulinistera 491 Lacinaria 504 Lartuca 511 Lapi)ula 514, 515 Lathyrus 494 Leelua 486 Logouzia 512 Lenina 526 Leontodon 511 Lepacbya 508 Lei>argy nca 521 Lfjiidiuni 486 Lepturus 550 Lf squerella 485, 486 Leucocrinum 525 Liatris 504 Liliiim 525 Liuaria 517 Liuniia 503 Linum 489 Lilbosiiernuim 516 Lobelia 511 Lduicera 503 Lotus 490 Luet kea 495 Lupinus 490 l.iiziila 526 Ly clinis 4as Lycopodiuni 534 Lycopus 519 Ly.\imachia 619 III. Pa fee. Macrocalyx ■■^^-^ Mahonia ^^"^ Maianthemum 5~'5 Malia ^3 Malveopsi* 489 Mamillaria ^"-^ Mentha 518 Mentzelia 501 Mertensia ■ 515, 516 Miuiulus 517,518 Monai da 519 Monolepis 520 Muhlenbei gia 530 Musenuim ^^^ Myagrum ^*^^" ilyosotis 5i4,515 Myriopteris ^35 Naumburgia 513 Neillia 495 NympbsBa 484 CEnot hera 500 Onoclea 536 Onosmoiiiiim 516 Opiilaster 495 Ophrys 524 Opniitia 501 Orchis 52i Oreocary a 515 Orobancbe 518 Orthocarpus 518 Oryzopsis 529 Osiuorrhiza 502 Osmiiuda 536 Ostrya 523 Oxalis 489 Oxytropis 493, 494 Panicularia 532 Panicuin 528 Parietaria 522 Pamassia 498 Paronychia 488 Parosela 491 Partbenocissus 490 Pastinaca 502 PelliBa 535 Pentstemon 517 Peramium 524 Petasites 509 Peucedanum 502 Phaca 492,493 Pbalaris 528,529 Phcgopteria 535 Pbleum 529 Phlox 514 Phyaalis 516 Picea 534 Pinus 534 Plantago 519 Poa 531,532 Polanigia 4S6 Polygala 487 Poly gonatnra 525 Polygonum 521 Folyotvs 51S Poly podiiun 535, 556 Page. Popuhia 523 Pot auiogeton 526 Poteiitilla 406,497 Prenaulhes 511 Protartes ,V5 Prunella 519 Primus 494,495 Psoralea 491 Pteris 535 Pteiospora 512 Ptilepida 509 Pulmonaria 515, old Pulsatilla 479 Pyrola 512 Quercus 523 Ranunculus 480 Rhus 490 Kibes 498,499 Roripa 485 Rosa 497 lUibus 496 Rudbeckia 508 Rumex 521 Sagi ttaria 526 Salix 523 Salna '. 519 Sambucus 503 Sanicula 502 Saponaria 487 Salyiium 524 Savastaua 529 SaxilVaga 498 Scliedonnardus 530 Scirpus 526,527 Scropbularia 517 Scutellaria 519 Sedum 499 Selaginella 534 Selinum 502 Senecio 509, 510 Serrattda ; . 504 Sesleria 531 Setaria 528 Silene ,, 487, 4SS Sinapis 4S5 Sisymbrium 485 Sisyrinchium 524 Sitanion 5$3 Slum 502 Sniilacina 525 Siiiilax 525 Sinynnum 502 Solannm 516 Solidago 505,506 Soiu-hiia 511 Sorbus 498 Spartina 528 Spicsia 493, 494 Spiiifa 495 Spiraiifhcs 524 Sporobolus 530 Stachys 519 Stanley a 484 Steiroiieuia 513 SU'Uaria 438 IV. Page. StenactU ■'0? Stipa 529 Streptopus 525 Swertia 514 Synijilioricarpos 503 Tati'let 509 Talinuni 488 Taraxacum 511 TcUiraa 498 Tetragonaiitlius 514 Thal.sia 518 Thalii trum 479 Thapxia 502 Tha.y,itiin 502 Thermoiisis 490 nia.tpi 480 Tradtscau tia 525 Tril'uliuiu 490 Trigonella 400 Tritieii in 5SS Tro.rimon 511 Tu rrilis 4S4 Titsilago 509 Page. TTlnius 522 Unifoliiim 525 Urachne 529 Urtica 522 Uvularia 5^5 Vaccin i nm 512 Tagnera 525 Valeriana 504 Verbasciim 517 Verbena 518 Veronica ,- 518 Vesicaria 4S5 Viburnum 503 Vicia 494 Til/a 530 Viola 487 Vitia 490 Vleckia 519 Woodsia 536 Wulfenia 518 Yucca 525 Zizia 502 Zygadenus 526 o '•■/>*, i.xJ 1."