NORTHWESTERN UNIVERSITY STUDIES
IN THE BIOLOGICAL SCIENCES
AND MEDICINE
NUMBER TWO
NORTHWESTERN UNIVERSITY STUDIES IN THE BIOLOGICAL
SCIENCES AND MEDICINE
NUMBER TWO
A CATALOG OF ILLINOIS
ALGAE
BY
MAX E. BRITTON
NORTHWESTERN UNIVERSITY
EVANSTON
NORTHWESTERN UNIVERSITY • 1944
NORTHWESTERN UNIVERSITY STUDIES
Editorial Board 1944-1945
L. B. Arey H. T. Davis
J. W. Bell F. D. Fagg
T. M. Campbell J. Nyholm
K. W. Colegrove O. Park
John Webster Spargo, Editor
Copyright, 1945
NORTHWESTERN UNIVERSITY
PRINTED IN THE UNITED STATES OF AMERICA
GEORGE BANTA PUBLISHING COMPANY, MENASHA, WISCONSIN
TABLE OF CONTENTS
Page
Foreword vii
Acknowledgments viii
Introduction 1
Review of the Literature 5
Plan and Arrangement of the Catalog 12
Classified Catalog of Illinois Algae 15
Phylum: Cyanophyta 15
Class: Myxophyceae 15
Family: Chroococcaceae 15
Pleurocapsaceae 19
Oscillatoriaceae 19
Nostocaceae 25
Scytonemataceae 28
Stigonemataceae 29
Rivulariaceae 29
Phylum: Rhodophyta 30
Class: Rhodophyceae 30
Family: Batrachospermaceae 30
Thoreaceae 30
Phylum : Chrysophy ta 30
Class: Xanthophyceae 30
Family: Botryococcaceae 30
Ophiocytiaceae 31
Tribonemataceae 32
Botrydiaceae 33
Class: Chrysophyceae 34
Family: Mallomonadaceae 34
Syncryptaceae 34
Synuraceae 35
Ochromonadaceae 35
Rhizochrysidaceae 36
Class: Bacillariophyceae 37
Family: Coscinodiscaceae 37
Eupodiscaceae 40
Rhizosoleniaceae 41
Tabellariaceae 41
Meridionaceae 42
Diatomaceae 42
Fragilariaceae 43
Eunotiaceae 47
Achnanthaceae 48
Naviculaceae 49
Gomphonemataceae 59
Cymbellaceae 61
Nitzschiaceae 64
Surirellaceae 66
^Cs^l
V
vi CONTENTS
Page
Phylum : Chlorophyta 69
Class: Chlorophyceae 69
Family: Polyblepharidaceae 69
Chlamydomonadaceae 69
Volvocaceae 69
Sphaerellaceae 74
Palmellaceae 74
Tetrasporaceae 75
Ulotrichaceae 75
Microsporaceae 76
Cylindrocapsaceae 77
Chaetophoraceae 77
Protococcaceae 81
Coleochaetaceae 81
Cladophoraceae 82
Oedogoniaceae 85
Schizomeridaceae 98
Chlorococcaceae 98
Endosphaeraceae 98
Characiaceae 99
Hydrodictyaceae 99
Coelastraceae 105
Oocystaceae 106
Scenedesmaceae Ill
Vaucheriaceae 117
Zygnemataceae 119
Mesotaeniaceae 132
Desmidiaceae 133
Phylum: Pyrrophyta 142
Class: Dinophyceae 142
Family: Glenodiniaceae 142
Peridiniaceae 143
Heterodiniaceae 143
Phylum: Euglenophyta 145
Class: Euglenophyceae 145
Family: Euglenaceae. 145
Colaciaceae 153
Excluded Species 154
Bibliography 156
Index 163
FOREWORD
Advancement in our knowledge of the fresh-water algae in general
and of algal distribution in particular stems from many different kinds
of publicati^ons, running the gamut from comprehensive and mono-
graphic volumes to modest reports of local lists. It will continue to be
necessary for many persons to collect and identify algae, to describe
and report them from all sorts of habitats throughout the world, and
to cultivate them under various laboratory conditions. Only in this
way may our inquiries into the taxonomy, morphology, physiology,
ecology, and genetics of the algae make appreciable progress.
Literature on the algae has accumulated with such rapidity during
the last three or four decades that it is necessary now and then to
assemble the known data in a form more readily available to students
of this plant group. The number of papers dealing directly or indi-
rectly with Illinois algae is very large, as indicated in the bibli-
ography at the end of this book. The first step in summarizing our
knowledge to date of the algae of Illinois is largely bibliographic,
involving an examination into such matters as distribution, syn-
onymy, and classification. The "Catalog of Illinois Algae" represents
this first step.
Such a venture is by no means an easy task, and perhaps complete-
ness is scarcely to be attained. Professor Britton has, however, at-
tacked the problem in a thorough-going manner, using both pub-
lished and unpublished data — many of them his own — for the present
summary. He will welcome corrections and additions to the Catalog.
The department of botany at Northwestern University plans to
extend this summary survey in subsequent reports to include descrip-
tions, keys, illustrations, and habitat analysis for the algal groups
growing in Illinois. It is hoped that such a series will stimulate inter-
est in and continued investigation of these aquatic plants.
I L. H. Tiffany
vu
ACKNOWLEDGMENTS
In the course of preparing this catalog, the writer has enjoyed the
helpful aid and criticism of several specialists. Grateful acknowledg-
ment is made to Mr. Paul S. Conger, Diatomist of the Smithsonian
Institution of Washington, for help with the Bacillariophyceae; to
Dr. E. N. Transeau, of The Ohio State University, for help with the
Zygnemataceae, as well as for his generosity in making available a
great many of his unpublished Illinois algal records; to Dr. F. Drouet,
Curator of Cryptogamic Botany at the Field Museum of Natural
History,^ for aid with the Myxophyceae and for making available
several of his unpublished Illinois records of Myxophyceae, and for
identifying many of my own collections of Myxophyceae; and to
Dr. C. E. Taft, of The Ohio State University, for helpful suggestions
relative to the Desmidiaceae. Sincere thanks are expressed to Dr.
L. H.. Tiffany, of Northwestern University, who has given invaluable
aid in many ways throughout the preparation of the catalog.
All errors of whatever nature that may occur in the catalog are
strictly the responsibility of the writer and are not to be attributed
to any of those who kindly gave of their time and assistance. The
system of classification and use of synonyms do not necessarily con-
form in every way to the opinions of the specialists consulted, and
should in no way reflect unfavorably on them. Because of many di-
verse difficulties, their suggestions could not always be followed, but
it is believed no very serious deviations have occurred.
' Since the submission of this manuscript, the Field Museum of Natural History
has become the Chicago Natural History Museum.
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INTRODUCTION ^'^ ^ V'
Interest in the algae of the State of Illinois, as indicated by the
published literature, extends back to the middle of the past century;
since early in the present century, this interesting group of plants
has been studied in the State by some of the best-known and most
critical workers in this country. To the present date, algal species
have been reported in the published literature from only 64 of the
102 counties, and among these only 10 counties are represented by
as many as 50 species and only 4 by 100 or more species (see map,
p. 2). Despite this seemingly inadequate knowledge of Illinois algae,
more than 90 papers have appeared as a more accurate testimonial
to the interest and attention which the algae of the State have re-
ceived, directly or indirectly. Although many of these reports are
but brief notes resulting from limited investigations, there are a few
of outstanding interest, which have resulted from intensive studies
of localized areas over periods of many years, and which have had a
major influence on the subsequent course of algological and limno-
logical research in this and other countries.
Beginning in 1938, the writer made a study, submitted as a thesis
for the Ph.D. degree in botany at Northwestern University, of dis-
tribution of algae about the southern end of Lake Michigan in certain
counties of Wisconsin, Illinois, Indiana, and Michigan. In the course
of this study, a review of the Illinois literature was made and a check-
list of the algae previously reported compiled, a classified summary
of which was subsequently published (Britton 1940). More recently,
believing this list to be of interest especially to algologists of the Mid-
dle West and particularly to students of algology of Illinois, the data
have been reorganized and expanded into this catalog of all algae
known by the writer, from published or unpublished sources, to occur
in the State. Previously unpublished records include those of the
writer, as well as a large number made available through the courtesy
of Dr. E. N. Transeau of The Ohio State University and Dr. F.
Drouet of the Field Museum of Natural History.
The records included are based on reports from the various algal
habitats within the State boundaries and from waters occurring at
and forming these boundaries. All records from the Mississippi, Ohio
and Wabash Rivers where they adjoin the State are included as
Illinois records without regard to the point where the collections were
made relative to the midstream State boundary. Reports of algae
from Lake Michigan have been included only if based on collections
obtained within the lakeward boundaries of Cook and Lake Coun-
ties.
Reference to the Illinois map (p. 2) reveals that of the 64 counties
The Number of Known Algal Species for Each County
INTRODUCTION 3
from which algal species are reported, over 40 lie along the Missis-
sippi, Ohio, Wabash, Illinois, Sangamon and Rock Rivers. With
but few exceptions, these counties, for the most part represented by
small numbers of species, have not been studied at all in the interior
portions, but the records are based on collections from the streams
along which these counties lie. The principal exceptions are Clark,
Lawrence and Pulaski Counties, and a few others the inland waters
of which have been studied to a minor extent. The only State area
that has been intensively studied algologically over any considerable
number of years is east-central Illinois in the region centering about
Coles County, where Dr. E, N. Transeau did his especially note-
worthy work early in this century. Although Cook County shows a
greater total, 502 species, than any other county, it should be noted
that the figure is weighted considerably by the large number of Lake
Michigan species, mainly diatoms, which are included. Coles County
to date is the most critically and intensively studied interior area
of the entire State, with a total representation in this catalog of 413
species and varieties of algae.
The catalog contains a total of 178 genera and 962 species, varieties
and forms of algae distributed among the various algal groups as
summarized in the following classified list. The first number in each
case refers to genera and the second to species, varieties or forms.
Cyanophyta 29-98
Myxophyceae 29-98
Chroococcales 8-16
Chroococcaceae 8-16
Chamaesiphonales 1-1
Pleurocapsaceae 1-1
Hormogonales 20-81
Homocystineae 7-46
Oscillatoriaceae 7-46
Heterocystineae 13-35
Nostocaceae 5-22
Scytonemataceae 3-6
Stigonemataceae 1-1
Rivulariaceae 4-6
Rhodophyta 2-2
Rhodophyceae 2-2
Nemalionales 2-2
Batrachospermaceae 1-1
Thoreaceae 1-1
Chrysophyta 51-308
Xanthophyceae 4-14
Heterococcales 2-8
Botryococcaceae 1-2
Ophiocytiaceae 1-6
Heterotrichales 1-4
Tribonemataceae 1-4
Heterosiphonales 1-2
Botrydiaceae 1-2
Chrysophyceae 6-15
Chrysomonadales 5-14
Chromulineae 2-4
Mallomonadaceae 2-4
Isochrysidineae 2-2
Syncryptaceae 1-1
Synuraceae 1-1
Ochromonadineae 1-8
Ochromonadaceae 1-8
Rhizochrysidales 1-1
Rhizochrysidaceae 1-1
Bacillariophyceae 41-279
Centrales 6-30
Coscinodiscineae 5-28
Coscinodiscaceae 4-27
Eupodiscaceae 1-1
A CATALOG OF ILLINOIS ALGAE
Rhizosolenineae 1-2
Rhizosoleniaceae 1-2
Pennales 35-249
Fragilarineae 7-42
Tabellariaceae 1-2
Meridionaceae 1-2
Diatomaceae 1-5
Fragilariaceae 3-28
Eunotiaceae 1-5
Achnanthineae 3-10
Achnanthaceae 3-10
Naviculineae 19-150
Naviculaceae 13-95
Gomphonemataceae 2-
23
Cymbellaceae 4-32
Surirellineae 6-47
Nitzschiaceae 3-19
Surirellaceae 3-28
Chlorophyta 88-509
Chlorophyceae 88-509
Volvocales 9-13
Polyblepharidaceae 1-1
Chlamydomonadaceae 1-1
Volvocaceae 6-10
Sphaerellaceae 1-1
Tetrasporales 5-8
Palmellaceae 3-5
Tetrasporaceae 2-3
Ulotrichales 18-55
Ulotrichineae 14-43
Ulotrichaceae 3-7
Microsporaceae 1-6
Cylindrocapsaceae 1-2
Chaetophoraceae 6-20
Protococcaceae 1-1
Coleochaetaceae 2-7
Cladophorineae 4-12
Cladophoraceae 4-12
Oedogoniales 2-127
Oedogoniaceae 2-127
Ul vales 1-1
Schizomeridaceae 1-1
Chlorococcales 28-95
Chlorococcaceae 2-2
Endosphaeraceae 2-2
Characiaceae 1-3
Hydrodictyaceae 3-13
Coelastraceae 1-4
Oocystaceae 15-42
Scenedesmaceae 4-29
Siphonales 2-13
Vaucheriaceae 2-13
Zygnematales 23-197
Zygnemataceae 6-105
Mesotaeniaceae 4-4
Desmidiaceae 13-88
Pyrrophyta 3-11
Dinophyceae 3-11
Dinoflagellatae 3-11
Peridiniales 3-11
Glenodiniaceae 1-4
Peridiniaceae 1-5
Heterodiniaceae 1-2
Euglenophyta 5-34
Euglenophyceae 5-34
Euglenales 4-32
Euglenaceae 4-32
Colaciales 1-2
Colaciaceae 1-2
REVIEW OF THE LITERATURE
The algae of Illinois have received the attention of but few workers
whose interest has been primarily in taxonomic treatment of the
group. However, among the 94 papers including information on
Illinois algae, there are a few from some of the most active algologists
in this country to whom we owe the greater part of our knowledge
of algae in this State. A large proportion of the papers are fish and
pollution studies dealing only secondarily with the algae and often
listing only genera. Many of the papers are duplications and sum-
maries, or are monographic in nature, the records reported being
taken from previous publications and representing no new collections,
identifications or new records of distribution in the State.
The literature has been divided for the purpose of discussion into
five groups based on the types of investigations involved. First to
be considered are those papers which contribute mainly to the ex-
tension of knowledge of the floristics, taxonomy and distribution of
algae within the State. Second are those papers, mainly ecological
in content, which deal primarily or secondarily with the algae. In-
cluded in this group are those papers dealing with pollution stud-
ies. Third are those papers considering food relations of animals;
fourth, monographs and other comprehensive studies of the algae,
not limited to but mentioning Illinois algae; and fifth, miscellaneous
papers only indirectly concerned with the algae. This classification
is somewhat arbitrary, since, in a sense, all the papers are taxonomic
studies, and, further, many papers have ecological aspects («.e., fish-
food studies), despite the fact that they are not here classified as
such. However, this segregation of papers is one of convenience, and
will serve to indicate the types of research conducted that involve
Illinois algae.
Taxonomic and Floristic Studies
Of the total of 94 papers known to the writer, 40 may be con-
sidered as taxonomic contributions dealing directly either with the
identification and distribution of Illinois algae, or with the descrip-
tion of new genera and species whose type localities are within the
State. Of these 40 papers, 12 are studies of the inshore areas of Lake
Michigan, principally at Chicago and Evanston (Ahlstrom 1936;
Atwell 1889; Babcock 1872B; Briggs 1872A, B, C; Forbes 1883A;
Jelliffe 1893; Skvortzow 1937; Smith 1878; Stimson 1870; Thomas &
Chase 1887).
The most extensive of these papers is that of Thomas & Chase,
who reported a total of 211 species and varieties of diatoms distrib-
6 A CATALOG OF ILLINOIS ALGAE
uted among 34 genera, the largest single study of Illinois diatoms
thus far to appear. Other notable lists are those of Briggs (1872B)
and Jelliffe (1893), who reported respectively 23 genera and 45 spe-
cies and 21 genera and 26 species, mainly of diatoms. In a more recent
study, Ahlstrom^ (1936) listed 41 species and varieties, mainly dia-
toms, from Lake Michigan at Evanston. Skvortzow (1937) pubhshed
a list of 17 species and varieties of diatoms from Lake Michigan, 2
varieties and 1 species being descriptions of forms new to science.
Only one paper in this group involves algae from the rivers bound-
ing Illinois. Bailey (1845) published "Notes on the Infusoria of the
Mississippi River," the first paper known to the writer to mention
algae from Illinois or its boundary waters. Nine genera and 14 species
of algae were listed.
The remaining 27 papers in this group, dealing with algae of inland
waters, include 10 publications which appeared prior to or during
1900 (Clinton 1894; Carman 1890; Hempel 1896, 1898; Hazen 1899;
Hedgecock and Hunter 1899; Johnson 1894; Johnson and Atwell
1890; Kofoid 1898, 1899, 1900). The majority of these papers give
but brief notes of the algae, the most noteworthy being that of John-
son and Atwell, who investigated the algal flora of northwestern
Cook County and reported the occurrence of 38 genera and 102 spe-
cies and varieties distributed among three algal classes, mainly Chloro-
phyceae. The papers of Kofoid are notable, as they include the orig-
inal descriptions of some of our most frequently found algae. Pleo-
dorina illinoisensis Kofoid was first described (1898) from the
plankton of the Illinois River and was followed (1899, 1900) by the
description of Platydorina caudata Kofoid, collected from the same
stream. Accompanying these descriptions is the mention of a few
associated plankton species.
Publications since 1900 include some of the most important tax-
onomic treatments of Illinois algae thus far to appear (Britton 1940,
1942; Marshall and Hague 1938; O'Hanlon 1929; Solheim and Pen-
found 1927; Tiffany 1927, 1939; Transeau 1912, 1913A, B, 1914,
1915, 1934, 1938; Transeau and Tiffany 1919; Transeau, ei a/. 1934).
Of these the outstanding and most comprehensive study is that of
Transeau (1913B), who published an annotated list of 72 genera and
242 species, varieties and forms of algae from Coles and neighboring
counties. Transeau (1912) recorded Gloeotaenium loitleshergerianum
from Coles County and followed (191 3A) with the complete life his-
tory of this alga, previously unknown in North America. Transeau
(1914) described 20 new species and varieties among the genera Mou-
^ In this study of the deepwater plankton of Lake Michigan, Ahlstrom states that
most of the deepwater forms were also found in the inshore areas studied in Evanston.
In this catalog only those forms definitely stated as occurring at Evanston are in-
cluded.
REVIEW OF THE LITERATURE 7
geotia, Spirogyra, Zygnema and Oedogonium and followed this
paper (1915) with notes on the algal order Zygnematales, based on
specimens accumulated during eight years of collecting in east-central
Illinois. Further descriptions of new species, partially from Illinois,
were published by Transeau (1934, 1938). Transeau and Tiffany
(1919) described new species of Oedogonium from Coles and Mont-
gomery Counties, and Transeau, et al. (1934) described new species
of Zygnemataceae, including 12 species from Illinois waters. Tiffany
(1927) described three new species of Oedogonium and one species
of Spirogyra from southeastern Illinois, and summarized (1939) the
Oedogoniales known to occur in Illinois. Solheim and Penfound
(1928) reported 23 genera and 45 species and varieties of algae from
a small stream north of Urbana, Champaign County.
General Ecological and Pollution Studies
Twenty-nine papers published between 1872 and 1941 may con-
veniently be considered in this group. Five of these (Babcock 1872 A;
Daily 1938; Damann 1940, 1941; Eddy 1927B) concern the algae of
Lake Michigan. Babcock studied the effect of the reversal of the
Chicago River on Chicago hydrant water, and reported 13 genera and
9 species of diatoms. In a quantitative study of Lake Michigan
plankton, Eddy reported a total of 35 genera and 37 species and
varieties of phytoplankton encountered during a comparison of col-
lections made in the Lake at Chicago in the period from November,
1887, to November, 1888, with collections made from the same sta-
tions in 1926 and 1927. Daily listed 45 genera and 21 species and
varieties during his quantitative study of Lake Michigan plankton
at Evanston. Damann, continuing this study begun by Daily at
Evanston, reported only genera, mainly of diatoms.
Two papers (Galtsoff 1924; Purdy 1922.) deal with studies of rivers
at Illinois State boundaries. Galtsoff conducted a limnological survey
of the upper Mississippi River, a part of the study taking place in
that section of the river extending from the northern boundary of
Illinois southward to Burlington, Iowa. Thirty-one genera and 29
species and varieties of algae were recorded from this section of the
river. Purdy reported 5 genera and a single species of algae from the
Ohio River where its course adjoins Massac and Pope Counties.
The remaining 22 papers in this group (Adcock 1922; Agersborg
1930; Eddy 1924, 1925, 1927A, 1931A, B, 1934; Forbes and Richard-
son 1913, 1919; Gates 1912; Houdek 1923; Jewell 1920, 1922; Kofoid
1903, 1908; Leighton 1907; Purdy 1930; Richardson 1921; Transeau
1913C, 1916; Welch 1942) include some of the most important algo-
logical contributions from Illinois students, which have had remark-
able influence on the course of algological and related research in this
country and in other countries. Two classic studies (Kofoid 1903,
8 A CATALOG OF ILLINOIS ALGAE
1908; Transeau 1913C, 1916) are of outstanding importance. Kofoid
published in 1903 the first volume of his widely-known pinoneering
study of the plankton of the Illinois River, including in Part I,
"Quantitative Investigations and General Results." This volume
contains mention of 35 genera and 25 species of algae, mainly diatoms,
from the Illinois River and lakes nearby and small streams of Fulton
and Mason Counties. In 1908, Part II, "The Constituent Organism
and Their Distribution" was published, this volume including data
on 76 genera and 138 species and varieties of algae, mainly Chloro-
phyceae and Bacillariophyceae from the Illinois River.
Transeau (1913C) reported the results of a five-year study in East-
central Illinois of the periodicity of algae based on "their periods of
greatest abundance, the duration of their vegetative cycles and the
times of their reproduction." Twenty genera and 32 species and vari-
ties, mainly Chlorophyceae, were classed as winter annuals, spring
annuals, summer annuals, autumn annuals, perennials, ephemerals,
or irregulars. This paper was followed in 1916 by a similar report
based on a seven-and-one-half-year study of 27 genera and 60 species
and varieties of algae.
Eddy published a series of papers resulting from his investigations
of freshwater algal communities. In 1925 he reported 22 genera and
2 species observed during a study of algal succession in ponds and
streams in Vermilion and Piatt Counties, and in 1927 (192 7 A) re-
ported 20 genera and 6 species found during similar investigations of
Crystal Lake and some small ox-bow ponds in the vicinity of the
University of Illinois, Urbana, Champaign County. Two papers ap-
pearing in 1931 (Eddy 1931 A, B) reported results of investigations
of the plankton of the Sangamon River and of a group of sink-hole
ponds in Pulaski County, respectively. These papers were followed
in 1934 with a summary of freshwater algal community studies, in-
cluding mention of 34 genera and 38 species and varieties of Illinois
algae.
In addition to the work of Kofoid on the Illinois River is that of
Forbes and Richardson (1913), who reported 17 genera and 18 species
of algae found during their study of the upper portion of the river,
and who, in 1919, mentioned a few diatoms encountered in their
study of changes in the biology of the river after the opening of the
Chicago Drainage Canal. Leighton (1907) published an account of
investigations of the effect of Chicago sewage on pollution of the
Illinois and Mississippi Rivers, mentioning 40 genera of algae. Purdy
(1930) made an extensive study of the pollution of the Illinois River
and certain of its tributaries. Fifty genera and 17 species of algae
were recorded.
Jewell (1920) reported 19 genera of algae from the Sangamon River
and in 1922 two genera from the Big Muddy River. The papers of
REVIEW OF THE LITERATURE 9
Adcock (1922) and Houdek (1923) are the results of ecological inves-
tigations of Lake Knox, near Galesburg, in Knox County. In these
papers only a few algae are mentioned — 2 genera and 1 species in the
former, and 11 genera in the latter. Gates (1912) listed 2 genera of
algae from Lake County in his study of the vegetation of beach areas.
Studies of Algae as Animal Food Supply
Forbes (1880, 1883B, 1888A, B) reported the results of investiga-
tions of plants used as a source of food by freshwater fishes in Illinois.
In each of these papers a few algae, usually only genera, were re-
corded. The only other study of algae in relation to the foods of
Illinois fishes that has come to the attention of the writer is that of
Eddy and Simer (1928), who examined the stomach contents of the
paddlefish (Polydon spathula) taken from the Illinois River at Mere-
dosia, Morgan County. This analysis resulted in the listing of 6
genera and 4 species of algae.
Baker (1922), in a study of the Mollusca of the Big Vermilion River
in Champaign County, reported the occurrence of 7 genera and 8
species of algae identified by E. N. Transeau.
Monographs and Other Comprehensive Reports
Thirteen papers known to the writer may be included in this group.
In these, the Illinois records are usually but not always summaries
of distribution, the various species having been previously reported
in other publications.
F. S. Collins (1909) published "The Green Algae of North Amer-
ica," a volume which for many years was the standard English-
language reference available to students of North American algae.
Thirteen genera and 23 species and varieties of Chlorophyceae from
the collections of E, N. Transeau are included. This volume was
followed by two supplements (Collins 1912, 1918), the first of which
contained mention of 5 genera and 11 species of Illinois algae, also
from the Coles County collections of E. N. Transeau. In the second
supplement, Collins indicated the growing interest of botanists in the
algae, and noted the increased numbers of species recorded for the
United States since the publication of the two preceding volumes.
According to Collins, "the largest contributors to this increase have
been E. N. Transeau and G. M. Smith." Transeau's earlier papers
are acknowledged, and his records of Illinois Chlorophyceae, includ-
ing 6 genera and 50 species, mainly Oedogoniaceae and Zygnemata-
ceae, added to the supplement.
Tilden (1910) included 5 genera and 6 species of Myxophyceae
from Cook County in her "Myxophyceae of North America." These
were contributions of L. N. Johnson and C. B. Atwell.
10 A CATALOG OF ILLINOIS ALGAE
Transeau (1925) published a critical analysis of the genus De-
barya and gave distribution records of the known species, including
Debarya decussata Transeau (now Zygnemopsis decussata Transeau)
from Illinois. The following year (Transeau 1926) a similar treatment
of the genus Mougeotia, including 14 Illinois species and varieties,
was published.
TifTany (1928) monographed the genus Bulbochaete, listing 13
species and varieties as occurring in Illinois. This paper was followed
(Tiffany 1930) by a definitive illustrated monograph of the family
Oedogoniaceae, the first comprehensive treatment of this group to
appear in the English language. Distribution records known to the
author at that time show Illinois to be represented by 13 species and
varieties of the genus Bulbochaete and 69 species, varieties, and
forms of the genus Oedogonium. Tiffany (1937) revised his mono-
graph, including only those species known to occur in North America,
as a special edition of "North American Flora" published by the New
York Botanical Garden. Additional distribution records and changes
of synonomy resulted in a slight shift in the number of species of this
group from Illinois. At this time (1937) Illinois records numbered
14 species, varieties and forms of Bulbochaete and 76 of the genus
Oedogonium.
Brown (1929) published her interpretation of the family Vaucheria-
ceae and listed Dichotomosiphon tuherostis (A. Br.) Ernst and 7 species
of the genus Vaucheria from Illinois.
Eddy (1930) pubHshed an account of the "Freshwater Armored or
Thecate Dinoflagellates," listing 5 genera and 16 species of this group
known to occur in the United States, 3 genera and 10 species of which
were reported from Illinois.
Ahlstrom (1937) studied variability in the genus Dinobryon and
listed 6 species and varieties collected from Lake Michigan and small
lakes of northeastern Illinois,
Smith (1933) mentions a few Illinois algae in his "Freshwater Al-
gae of the United States," including Sirogonium illinoisense (Trans.)
Smith, originally described as Spirogyra illinoisensis by Transeau
from type material collected in Illinois.
Miscellaneous Papers
The following papers are mainly experimental studies involving the
use of algae collected in the State. Davis (1904) studied oogenesis
in the genus Vaucheria, using as a source of material a collection of
Vaucheria geminata forma racemosa (Vauch.) Walz, from Chicago,
Cook County. Wesley (1928) studied the asexual method of reproduc-
tion in 4 species of Coleochaete collected in Washington Park, Chicago. ^
2 Not all of these records are recorded specifically as coming from Washington
Park, but such may be inferred from the text.
REVIEW OF THE LITERATURE 11
Baylis and Gerstein (1929) reported the effects of plankton on the
filtration of lake water, and discussed methods of counting such
organisms. Thirty-nine genera, mainly Bacillariophyceae and Chloro-
phyceae, are mentioned.
Ohashi (1930) made a cytological study of the genus Oedogonium,
using an undetermined species collected at Jackson Park, Chicago,
and Oedogonium grande Kuetz. collected in a swamp at Palos Park
near Chicago.
Richardson (1930) reported results of experimentation with fish
culture in balanced aquaria. Plants collected at Havana, Mason
County, and used in the experiments, included 3 genera and 2 species
of algae.
Williams, e/ a/. (1931), studied the effects of commerical fertilizers
on sugar utilization in the genus Spirogyra. Experimental material
consisted of Spirogyra porticalis (Muell.) Cleve, obtained from a small
lake near Urbana, Champaign County.
PLAN AND ARRANGEMENT
OF THE CATALOG
The catalog has been arranged as simply as possible to bring to-
gether in as brief a summary as seems feasible all the information
concerning Illinois algal species that is known to the writer. The
genera and species are presented in a classified form, following with
but minor modifications the scheme of classification of G. M. Smith's
"Freshwater Algae of the United States." The algae are listed alpha-
betically by genera in each family and by species in each genus. Syn-
onomy has been brought up to date in all cases where such corrections
seemed possible with reasonable accuracy. Species which could not
be corrected or which for other reasons appeared to be worthless have
been listed separately as "Excluded Species" (see. p. 154). It is per-
haps possible that some of these excluded species can be shown by
some workers to merit a place in modern interpretations of the algae
and for this reason they are included here. The problem of correcting
synonomy is at best a hazardous one when no specimens are available
for study, and usually a bare name is the only point of departure.
The assumption that identifications were correct in the first place
undoubtedly results in some error, but it is believed by the writer
that such errors are a minimal possibility in the Illinois reports, since
much of the more important work has been done by recognized
specialists, and those reports from other workers perhaps not so
critical almost invariably involve the commoner species, which al-
most any algologist should recognize. A further ever-present diffi-
culty is the difference of opinion existing between specialists as to
where a species belongs and what the valid name of it should be. An
attempt has been made in this catalog to follow insofar as possible
the opinions of an accepted specialist for each group. For those who
differ in their opinions as to the proper disposal of a given species,
the original synonyms will be found carefully preserved here readily
available for further change. Perhaps the only algal group for which
there will be any considerable difference of opinion is the Bacil-
lariophyceae, and there seems no way of resolving the many conflict-
ing points of view in this group.
It will be noted that following the name of each species a reference
is given. The writer has had a two-fold purpose in mind in including
these references. In the first place, they indicate a modern authority
as to the validity of the species, and will establish the writer's reason
for correcting synonomy in each case. Secondly, in most cases these
references furnish a readily available means of finding more or less
modern descriptions and other information about each species. It
12
PLAN AND ARRANGEMENT 13
will not be argued that the best reference has always been used, for
in their selection an attempt has been made to use the more readily
available literature, insofar as possible that written in the English
language. Foreign-language references are used in cases where there
is a more recent and more adequate treatment of a particular algal
group than exists in English publications. Also, insofar as possible, a
single reference has been used for a large taxonomic unit even though
a slightly better treatment might be available for a particular genus
within the larger unit. Original type descriptions are avoided as much
as possible and are never used if there is a more general comprehensive
and authoritative reference available. In some cases, unpublished
manuscripts have been used as authority for changes of synonomy,
and the published references given will not be the best possible but
the best which most students will at present have available. The
point of view taken here, it is believed, will ease the problem of the
less well-trained student and will occasion no hardship on the expert,
who will be familiar with other sources.
Much of the Illinois literature contains only generic names of al-
gae, and they have been omitted in the catalog, with the exception
that each of the articles has been included in the review of the litera-
ture. In using the catalog, the following points relative to arrange-
ment of data should be kept in mind :
1. Synonyms as they occur in the Illinois literature are included
in italics.
2. All species reports are given by counties, which are arranged
alphabetically in bold-face type.
3. Preceding the county name are the names of the authors report-
ing the species, the date and page numbers of the reference, and
the name under which the species was reported if a synonym.
4. Following the county name are the names of cities, towns, or
other localities near the point of collections, the type of habitat,
and the months of collection (in parentheses).
5. Specific dates of collections are given only for reports from the
Field Museum of Natural History and for those of the writer.
6. Herbarium numbers are given for the writer's collections.
7. The absence of a reference date after the name of a person re-
porting algal species indicates that this information has not
previously appeared in print.
8. In the case of many of Dr. E. N. Transeau's reports, unpub-
lished data have been included with published data without dis-
tinguishing them.
9. In some cases the data for a given species are too extensive or
otherwise unwieldy to follow the system outlined above. In such
cases the data have been separated into two units, the first of
which includes references arranged chronologically, synonyms.
14 A CATALOG OF ILLINOIS ALGAE
and counties from which the report was made. In the second
unit the county names are arranged alphabetically with the
proper data associated. This method simplifies the problem of
checking distribution within the State and will entail no particu-
lar difficulty to the student who wishes to know who made a
particular report of a species, since the only effort required will
be the association of the appropriate county names in the two
units of data.
CLASSIFIED CATALOG OF
ILLINOIS ALGAE
Phylum: CYANOPHYTA
Class: MYXOPHYCEAE
Order: CHROOCOCCALES
Family: CHROOCOCCACEAE
ANACYSTIS Meneghini, 1837
A. MARGINATA Menegh. Daily, Amer. Midi. Nat. 27: 649. f. 28
(1942).
Britton: Cook, Sag Bridge— quarry pond, Sept. 8, 1939, #1007;
small pond and swamp, Sept. 8, 1939, #1021 {fide Dr. F. Drouet),
Lake, Lake Zurich— in Lake Zurich, Aug. 24, 1939, #913, 916;
Fox Lake — channel entering east side of Grass Lake, Aug. 25,
1939, #971.
A. PENiocYSTis (Kuetz.) D. & D. Daily, loc. cit., p. 651. f. 29, 35, 38
(1942).
Britton : Cook, Sag Bridge— quarry pond, Sept. 8, 1939, #1007
(fide Dr. F. Drouet).
A. RUPESTRis (Lyngb.) D. & D. Daily, loc. cit., p. 650. f. 19, 26 (1942).
Gloeocapsa polydermatica Kuetz.
Drouet, Field Mus. :Cook, Chicago — at water mark on sides of
tanks in greenhouse at Garfield Park, coll. by J. A. Steyermark,
. C. Shoop and F. Drouet, Oct. 30, 1938; Evanston — greenhouse
at Northwestern Univ., coll. by K. E. Damann, Mar. 12, 1939.
Lake, Waukegan — in a depression in sand dunes at Dunes
Park, coll. by F. Drouet, P. C. Standley and J. A. Steyermark,
June 14, 1940. Kofoid 1908, p. 22, as Gloeocapsa polydermatica.
Mason, Havana — Illinois River ("midsummer").
A. RUPESTRIS var. prasina (A. Br.) D. & D. Daily, loc. cit., p. 651.
f. 27 (1942).
Aphanothece stagnina (Spreng.) A. Br.
Transeau, as Aphanothece stagnina: Coles, Charleston — ponds
(June-Sept.). Britton: Kankakee, Kankakee- — roadside slough,
Apr. 18, 1938, #5.
APHANOCAPSA Naegeli, 1849
A. GREViLLEi (Berk.) Rab. Daily, loc. cit., p. 640. f. 5 (1942).
Aphanocapsa brunnea Naeg.
Transeau 1913, p. 70, as A. brunnea: Coles, Charleston —
ponds (July).
15
16 A CATALOG OF ILLINOIS ALGAE
CHROOCOCCUS Naegeli, 1849
C. LiMNETicus Lemm. Daily, loc. cit., p. 642. f. 6, 31 (1942).
Britton: Cook, Argonne Forest Preserve — Maple Lake, Sept. 8,
1939, #986. Lake, Antioch — Lake Marie, Channel Lake and
connecting channels, Sept. 14, 1939, #1032, 1033, 1035; Lake
Zurich— in Lake Zurich, Aug. 24, 1939, #915; Wauconda—
Slocum Lake, Aug. 24, 1939, #926.
C. RUFESCENs (Kuetz.) Naeg. Daily, loc. cit., f. 9 (1942).
Chroococcus minutus (Kuetz.) Naeg.
Eddy 1927B, pp. 214, 218, as C. minutus: Cook, Chicago-
Lake Michigan (July).
C. TURGiDUS (Kuetz.) Naeg. Daily, loc. cit., p. 643. f. 7, 8 (1942).
Transeau 1913B, p. 70: Coles, Charleston— pond (May, Oct.).
Britton 1940, p. 71: Cook, Glen view — swamp and intermittent
pond about 1^ miles W. on Central Road, May 12, 1938, Apr. 7,
1939, #56, 228; Morton Grove — small pond about 1 mile N.W. on
Waukegan Road, May 10, 1938, #43. Lake, Waukegan— Dead
River in Dunes Park, May 11, 1939, #255; Halfday— pond \
mile E., Aug. 8, 1939, #772. McHenry, McHenry— swamp E.
of McCullom Lake, July 6, 1939, #376.
COELOSPHAERIUM Naegeli, 1848
C. coLLiNsii D. & D. Daily, loc. cit., p. 653. f. 24, 25, 34 (1942).
Coelosphaerium naegelianum Unger
Eddy 1927B, pp. 214, 218; 1934, p. 400, as C. naegelianum;
Britton: Cook, Chicago — Lake Michigan (July); Sag Bridge —
quarry pond and a small pond in an extensive swamp, Sept. 8,
1939, #1007, 1021. Eddy 1934, p. 400, as C. naegelianum; Brit-
ton: Lake, Antioch — Bluff Lake, Channel Lake, Lake Marie
and connecting channels, Sept. 14, 1939, #1033, 1037, 1043, 1048;
Fox Lake — S. of Indian Point in Fox Lake, channel between
Fox Lake and Petite Lake, channel entering E. side of Grass
Lake, Aug. 25, 1939, #950, 954, 971; Lake Villa— in Long Lake;
Lake Zurich— in Lake Zurich, Aug. 24, 1939, #913-915; Volo—
Fish Lake, Aug. 24, 1939, #935. Britton: McHenry, Mc-
Henry—S. end of Twin Lakes (Lake Elizabeth), Aug. 2, 1939,
#729. Eddy 1931 B, pp. 454, 460, as C. naegelianum: Pulaski,
Wetaug — sink-hole ponds (Apr., July-Sept., Dec).
C. KUETZINGIANUM Naeg. Daily, loc. cit., p. 654. f. 23 (1942).
Transeau 1913B, p. 70: Coles, Charleston — ponds (July, Sept.)
Britton; Eddy 1927B, pp. 208, 218: Cook, Argonne Forest Pre-
serve—Maple Lake, Sept. 8, 1939, #986; Chicago— Lake Michi-
gan (Aug.-Nov.). Britton: Lake, Fox Lake — channel entering
E. side of Grass Lake, Lake Marie, Channel Lake, Bluff Lake,
Petite Lake and connecting channels, Aug. 25, Sept. 14, 1939,
CLASSIFIED CATALOG OF ILLINOIS ALGAE 17
#954, 956, 971, 1032, 1033, 1035, 1048; Halfday— 3 miles N. in
the DesPlaines River at Route 59A, July 29, 1938, #181 ; Lake
Zurich— in Lake Zurich, Aug. 24, 1939, #915; Volo— Fish Lake,
Aug. 24, 1939, #935; Wauconda— Slocum Lake, Aug. 24, 1939,
#926. Eddy 193 IB, p. 451, 460; Pulaski, Wetaug— sink-hole
ponds (Apr., Sept.).
GOMPHOSPHAERIA Kuetzing, 1836
G. APONINA Kuetz. Daily, loc. ciL, p. 655. f. 20, 21 (1942).
Eddy 1927B, pp. 214, 218; Britton: Cook, Chicago— Lake
Michigan (July); Palos Park— swamp, July 14, 1939, #556;
small pond at Palos Golf Club, Sept. 8, 1939, #1000.
MERISMOPOEDIA Meyen, 1839
M. CONVOLUTA Breb. Daily, loc. cit., p. 647. f. 16 (1942).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — spring-
fed stream N. of (Mar.-June, Sept.-Dec). Transeau 1913B, p.
70: Coles, Charleston — ponds (May-July). Britton 1940, p. 71:
Cook, Morton Grove — small reservoir pond, May 10, 1939, #42.
Transeau: Jasper, Wheeler — E. of in Embarrass River (Sept.).
M. GLAUCA (Ehr.) Kuetz. Daily, loc. cit., f. 32 (1942).
Merismopoedia tenuissima Lemm.
Eddy 1927A, pp. 131, 133; Solheim & Penfound 1928, p. 86:
Champaign, Urbana — drainage ditch and ox-bow ponds at
Crystal Lake Park; spring-fed stream N. of (Aug.). Transeau
1913B, p. 70, as M. tenuissima: Coles, Charleston— pond (Sept.).
Johnson & Atwell 1890, p. 21; Britton: Cook, Evanston —
aquarium (Mar.); Northbrook — small pond about 3 miles S.W.,
May 12, 1939, #64; Sag Bridg^small pond, Sept. 8, 1939,
#1015. Kofoid 1908, pp. 20, 314: Mason, Havana— Illinois River
(Jan., Feb., July-Oct.). Eddy 1925, p. 146: Vermilion, Muncie—
oxbow pond (Nov.).
POLYCYSTIS Kuetzing, 1849
P. AERUGINOSA Kuetz. Daily, loc. cit., p. 638. f. 1 (1942); Drouet &
Daily, Field Mus. Nat. Hist., Bot. Ser. 20: 74 (1939).
Clathrocystis aeruginosa Henfr. ; Microcystis aeruginosa Kuetz. ;
Microcystis fios-aquae (Wittr.) Kirch.; Microcystis ichthyoblabe
Kuetz.
Kofoid 1908, pp. 20, 292, 314, as Clathrocystis aeruginosa and
Microcystis ichthyoblabe (Mason). Transeau 1913B, p. 70, as
Clathrocystis aeruginosa (Clark). Galtsoff 1924, pp. 399, 401,402,
404, 405, 410, as Microcystis flos-aquae and Clathrocystis aeru-
ginosa (Carroll, Hancock, Henderson, Jo Daviess, Mercer, Rock
18 A CATALOG OF ILLINOIS ALGAE
Island, Whiteside). Eddy 193 IB, p. 460, as Microcystis aerugin-
osa and Microcystis flos-aquae (Pulaski); Eddy 1934, pp. 385,
386, 389, 394, 400, 403, as Microcystis aeruginosa (Lake, Macon,
Mason, McHenry, Whiteside). Daily 1938, p. 80, as Microcystis
aeruginosa (Cook). Transeau (Coles). Drouet & Daily, Field
Museum (Lake). Britton (Cook, Lake, McHenry).
Carroll — Mississippi River (July, Sept.). Clark, Casey — reser-
voir pond (Sept.). Coles, Charleston — pond (July). Cook, Ar-
gonne Forest Preserve — Maple Lake, and a small pond, Sept. 8,
1939, #986, 1915; Evanston — Lake Michigan. Hancock, Dallas
City — Lake Keokuk (Mississippi River) (July, Sept.). Hender-
son, Jo Daviess — Mississippi River (July-Sept.). Lake, Antioch
— Petite Lake and Lake Marie, coll. by E. H. Ahlstrom, June 5,
1932; Channel between Grass Lake and Lake Marie, Petite
Lake, Aug. 25, 1939, #956, 958; Lake Marie— Channel Lake,
Lake Catherine, Bluff Lake, Lake Marie and connecting chan-,
nels, Sept. 14, 1939, #1028, 1029, 1032, 1033, 1035, 1040, 1047,
1048; Diamond Lake — in Diamond Lake, coll. by E. H. Ahl-
strom, June 5, 1932; Fox Lake— in Fox Lake and Pistakee Lake,
coll. by E. H. Ahlstrom, June 5, 1932; Grass Lake, Fox Lake,
Petite Lake and connecting channels, Aug. 25, 1939, #942, 943,
945, 950, 953, 954, 971; Halfday— DesPlaines River at Route
59A, July 29, 1938, #181. Lake Villa— Sand Lake ("summer");
Lake Zurich — in Lake Zurich, coll. by E. H. Ahlstrom, June 5,
1932 ; Aug. 24, 1939, #913, 916; Long Lake— in Long Lake ("sum-
mer"); Volo— Fish Lake, Aug. 24, 1939, #935; Wauconda—
Bangs Lake and Slocum Lake, Aug. 24, 1939, #920, 926; Slocum
Lake, coll. by E. H. Ahlstrom, June 5, 1932. Macon, Decatur —
Lake Decatur (May-Aug.); park pond (June-Oct., Dec). Ma-
son, Havana — Illinois River (all months). McHenry — Fox
River; Greenwood— Nippersink Creek, Wonder Lake, July 6,
1939, #366, 368, 370. Mercer^Mississippi and Edwards Rivers
(July, Aug.). Rock Island, Whiteside — Mississippi and Rock
Rivers (July-Sept.).
P. INCERTA Lemm. Daily, loc. cit., p. 640. f. 2, 3 (1942); Drouet &
Daily, loc. cit., p. 73 (1939).
Microcystis incerta Lemm.
Eddy 1931 B, p. 460, as Microcystis incerta: Pulaski, Wetaug —
sink-hole pond (July).
SYNECHOCYSTIS Sauvageau, 1892
S.' AQUATiLis Sauv. Geitlcr in Rab., Kryptog.-fl. Deutsch. 14: 270
(1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — spring-
fed stream N. of (Aug.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 19
Order: CHAMAESIPHONALES
Family: PLEUROCAPSACEAE
PLEUROCAPSA Thuret, 1885
P. VARIA (A. Br.) D. & D. Daily, Amer. Midi. Nat. 27: 644. f. 36, 39
(1942). '
Drouet & Daily, Field Mus. : Cook, Chicago — on wet, shaded
cement walks and subaerial on sides of water tank in green-
houses at the Univ. of Chicago, coll. by P. D. Voth, J. M. Beal
and F. Drouet Oct. 5, 1938.
Order: HORMOGONALES
Suborder: HOMOCYSTINEAE
Family: OSCILLATORIACEAE
LYNGBYA Agardh, 1824
L. AERUGINEO-CAERULEA (Kuetz.) Gom. Geitler in Rab., Kryptog.-fl.
Deutsch. 14: 1062. f. 670 f, g (1932).
Oscillaria aerugineo-caerulea Kuetz.
Transeau 1913B, p. 71: Clark, Martinsville — drainage ditch
N.W. of (Oct.). Johnson & Atwell 1890, p. 21, as Oscillaria
aerugineo-caerulea: Cook, Evanston — aquaria (Mar.).
L. AESTUARii (Mert.) Liebm. ex Gom. Geitler, loc. cit., p. 1052. f. 666
(1932).
Transeau 1913B, p. 71 : Clark, Casey — pond (July, Nov.). Clay —
pond (May). Coles, Charleston — ponds (all months); laboratory
aquaria (Oct., Nov.). Douglas, Arthur — pond (July). Britton:
Lake, Lake Zurich — in Lake Zurich, Aug. 24, 1939, #916 {fide
Dr. F. Drouet). Transeau 1913B, p. 71: Lawrence, Lawrence-
ville — gravel pit (May). Montgomery, Coffeen — pond (May).
L. BiRGEi G. M. Smith. Geitler, loc. cit., p. 1048. f. 663 (1932).
Britton; Drouet — Field Mus.: Lake, Fox Lake — N. side of Lake
Marie, channel between Lake Marie and Channel Lake, Channel
and Bluff Lakes, Sept. 14, 1939, #1032, 1033, 1035, 1048; Wau-
conda — Bangs Lake, coll. by E. H. Ahlstrom, June 5, 1932.
L. DiGUETii Gom. Geitler, loc. cit., p. 1058. f. 656e (1932).
Britton : Cook, Sag Bridge — small pond and swamp, Sept. 8,
1939, #1021 {fide Dr. F. Drouet).
L. PUTEALis Mont, ex Gom. Geitler, loc. cit., p. 1063. f. 675b (1932).
Drouet, Field Mus. : Cook, Chicago — in shark tank, Shedd
Aquarium, coll. by J. A. Steyermark and Mr. Chute, Aug. 1,
1939.
L. TAYLORii Drouet & Strickl. Strickland, Amer. Jour. Bot. 27: 631.
f. 1 (1940).
Britton : Lake, Fox Lake — channel entering east side of Grass L.,
Aug. 25, 1939, #971 (fide Dr. F. Drouet).
20 A CATALOG OF ILLINOIS ALGAE
L. VERSICOLOR (Wart.) Gom. Geitler in Rab., Kryptog.-fl. Deutsch.
14: 1059. f. 656f (1932).
Forbes & Richardson 1913, pp. 520, 531; Bureau, Spring Valley
— Illinois River (Oct.). La Salle, Marseilles — Illinois River (Aug.,
Oct.).
MICROCOLEUS Desmazieres, 1823
M. ACUTissiMUS Card. Geitler, loc. cit., p. 1138. f. 744a (1932).
Drouet, Field Mus. : Cook, Chicago — on soil in a moist depres-
sion, 92nd St. and Stony Island Ave., coll. by P. D. Voth and F.
Drouet, Sept. 24, 1938. Dupage, Tiedtville — on bare soil in high
open wood, coll. by D. Richards and F. Drouet, Apr. 22, 1939.
M. LACUSTRis (Rab.) Farl. ex Gom. Geitler, loc. cit., p. 1142. f. 749.
750a (1932).
Drouet, Field Mus. : Cook, Chicago — on moist soil in green-
house at Univ. of Chicago, coll. by P. D. Voth, J. M. Beal and
F. Drouet, Oct. 5, 1938. Dupage — on path in Black Partridge
Woods; coll. by P. C. Standley, J. A. Steyermark and F. Drouet,
Oct. 18, 1938. Lake, Waukegan- — in a depression in sand dunes
at Dunes Park, coll. by F. Drouet, P. C. Standley and J. A.
Steyermark, June 14, 1940.
M. VAGINATUS (Vauch.) Gom. Geitler, loc. cit., p. 1136. f. 741 (1932).
Drouet, Field Mus.: Cook, Chicago — on soil in a moist depres-
sion, 92nd St. and Stony Island Ave., coll. by P. D. Voth and F.
Drouet, Sept. 24, 1938; in shallow water of lagoon in Jackson
Park, coll. by D. Richards and L. J. King, Oct. 18, 1940;
Lemont — on path near spring in quarry at E. edge of, coll. by
G. T. Velasquez, D. Richards and F. Drouet, Aug. 4, 1939.
Dupage — on mud flats along Illinois River opposite Lemont, coll.
by P. C. Standley, J. A. Steyermark and F. Drouet, Oct. 18,
1938; Tiedtville — on bare soil in high open woods, coll. by D.
Richards and F. Drouet, Apr. 22, 1939.
OSCILLATORIA Vaucher, 1803
O. ACUMINATA Gom. Geitler, loc. cit., p. 978. f. 603d (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (May, June).
O. AGARDHii Gom. Geitler, loc. cit., p. 974. f. 618k, 621 (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Feb.). Transeau 1913B, p. 70: Clark, Casey — reser-
voir ponds (Sept.). Coles, Charleston — pond (Sept., Nov.).
Drouet, Field Mus. : Cook, Chicago — waterbloom on quarry
pool at 92nd St. and Stony Island Ave., coll. by P. D. Voth and
F. Drouet, Sept. 24, 1938.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 21
O. AMOENA (Kuetz.) Gom. Geitler, loc. cit., p. 969. f. 603a, 611k
(1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (July).
O. ANiMALis Ag. ex Gom. Geitler, loc. cit., p. 978. f. 603a (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana— small
stream N. of (July).
O. ARTicuLATA Gard. Geitler, loc. cit., p. 963. f. 614 (1932).
Drouet, Field Mus.: McHenry, Crystal Lake — on Potomogeton
sp. in Crystal Lake, coll. by H. C. Benke, June 17, 1939.
O. CHALYBEA Mert. ex Gom. Geitler, loc. cit., p. 956. f. 608b (1932).
Oscillatoria subsalsa Ag.
Solheim & Penfound 1928, p. 86, as O. subsalsa: Champaign,
Urbana — small stream N. of (July-Oct.).
O. CHLORINA Kuetz. ex Gom. Geitler, loc. cit., p. 951. f. 611c (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (May, June). Johnson & Atwell 1890, p. 21: Cook,
Evanston — in a small stream.
O. CURVICEPS Ag. ex Gom. DeToni, Sylloge Algarum 5: 157 (1907);
Geitler in Rab., Kryptog.-fl. Deutsch. 14: 947. f. 598e (1932).
Oscillaria froelichii var. viridis Zell.
Solehim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Apr., May). Johnson & Atwell 1890, p. 21, as
Oscillaria froelichii var. viridis: Cook, Evanston— in a small
stream (Mar.).
O. FORMOSA Bory ex Gom. Geitler, loc. cit., p. 970. f. 619b (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (May, Aug.). Transeau 1913B, p. 70: Clark, Casey
pond (Oct.); Coles, Charleston — laboratory aquarium (Apr.).
Britton: Cook, Palos Park— swamp, Sept. 8, 1939, #975 (fide Dr.
F. Drouet).
O. GEMiNATA Menegh. ex Gom. Geitler, loc. cit., p. 965. f. 61 li (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Apr.-Aug., Oct.).
O. LIMOSA Ag. ex Gom. Geitler, loc. cit., p. 944. f. 598d (1932).
Johnson & Atwell 1890, p. 21 (Cook). Forbes & Richardson 1913,
pp. 502, 503, 506, 513, 520, 535 (Grundy, LaSalle, Peoria, Will).
Transeau 1913B, p. 70 (Coles). Solheim & Penfound 1928, p. 86
(Champaign). Agersborg 1930, pp. 103, 104, 106-110, 113, 114
(Macon). Drouet, Field Mus. (Cook). Transeau (Clark, Law-
rence).
Champaign, Urbana — small stream N. of (Feb.-June, Nov.,
Dec). Clark, Casey— pond (Oct.); Westfield— ditch (June).
Coles, Ashmore — creek and cut-offs (Oct.); Charleston, Kicka-
poo Creek and other small streams, ponds and ditches (all
22 A CATALOG OF ILLINOIS ALGAE
months); Wrightsville — small stream and pond (Apr., June).
Cook, Evanston — waste of waterworks (Apr.). Grundy, Dres-
den Heights— DesPlaines River (Aug., Sept.); Morris — IlHnois
River (July). La Salle, Marseilles — Illinois River (Aug., Oct.).
Lawrence, Pinkstaff- — bayou of Bee Branch Creek (Dec).
Macon, Decatur — warm waste-water ditch (Dec.-Feb.). Peoria,
Chillicothe — Illinois River (Sept., Oct.). Will, Lockport — Sani-
tary Canal and the DesPlaines River (Sept.).
O. ORNATA Kuetz. ex Com. Geitler, loc. cit., f. 599a (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Apr., June). Britton: Cook, Sag Bridge — quarry
pond, Sept. 8, 1939, #1007 {fide Dr. F. Drouet).
O. PRINCEPS Vauch. ex Gom. Geitler, loc. cit., p. 947. f. 598a, 601c-g
(1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Mar., May-Dec, Feb.). Transeau: Clark, Casey —
pond (May, July, Sept.). Transeau 1913B, p. 71; 1913C, p. 36:
Coles, Charleston — ponds, small streams, pools cut-offs and
laboratory aquaria (Apr.-Dec). Eddy 1927B, pp. 208, 219;
Britton: Cook, Chicago — Lake Michigan (Oct.); Sag Bridge —
swamp, Sept. 8, 1939, #988 {fide Dr. F. Drouet). Transeau:
Lawrence, Pinkstaff — spring-fed pond 3 miles E. of CJuly). Brit-
ton: McHenry, Woodstock — small pond E. of, July 7, 1939,
#424; small stream draining into Defiance Lake, Aug. 24, 1939,
#934. Transeau: ? County — Sangamon River (Aug.).
O. PROLIFICA (Grev.) Gom. Geitler, loc. cit., p. 973. f. 620c (1932).
Agersborg 1930, pp. 103, 104, 106, 108-110, 113, 114: Macon,
Decatur — warm waste-water ditch (Dec.-Feb.).
O. SANCTA (Kuetz.) Gom. Geitler, loc. cit., p. 943. f. 598c (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (June). Drouet, Field Mus. : Cook, Chicago— in
tanks and on wet soil and gravel in greenhouses at the Univ of
Chicago, coll. by P. D. Voth, J. M. Beal and F. Drouet, Oct. 5,
1938; from tank in Univ. of Chicago greenhouse, coll. by L. J
King, Jan. 20, 1941.
O. SPLENDIDA Grev. ex Gom. DeToni, Sylloge Algarum 5: 173 (1907);
Geitler, loc. cit., p. 972. f. 611m-o, 620d-f (1932).
Oscillaria gracillima Kuetz.
Transeau 1913B, p. 71: Coles, Embarrass — stone-quary pond
(Mar.). Johnson & Atwell 1890, p. 173, as Oscillaria gracillima;
Drouet, Field Mus.: Cook, Chicago — aquarium, coll. by C.
Shoop Steyermark, May 1940; Evanston (?) — prairie ditches
(Mar.). Drouet, Field Mus. : Lake, Volo — floating in small lake in
center of bog 2 miles N.W. of, coll. by G. D. Fuller and D.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 23
Richards, June 18, 1940. Forbes & Richardson 1913, p. 535:
Peoria, Chillicothe — Illinois River (Sept., Oct.).
O. TENUIS Ag. ex Gom. Geitler, loc. cit., p. 959. f. 611f-g (1932).
Including material collected by E. N. Transeau and placed in the
Herbarium of the New York Botanical Garden (#927) as 0. formosa
Bory {Me Dr. F. Drouet).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Feb.-June). Transeau; Drouet, Field Mus. : Coles,
Charleston — small stream (Sept.); Mattoon — swamp N. of
(Apr.). Drouet, Field Mus.: Lake, Waukegan — ^pond near the
railroad station at Dunes Park, coll. by F. Drouet, P. C. Stand-
ley and J. A. Steyermark, June 14, 1940.
O. TENUIS var. natans Gom. DeToni, Sylloge Algarum 5 : 168 (1907) ;
Geitler, loc. cit., p. 959 (1932).
Oscillaria natans Kuetz.
Johnson & Atwell 1890, p. 21, as Oscillaria natans: Cook, Evans-
ton (?) — prairie ditches (Mar.).
PHORMIDIUM Kuetzing, 1843
P. AMBiGUUM Gom. Geitler, loc. cit., p. 1015. f. 647e (1932).
Transeau 1913B, p. 71: Coles, Ashmore — from shell of a live
snapping-turtle in stream S. of (May).
P. AUTUMNALE (Ag.) Gom. Geitler, loc. cit., p. 1026. f. 652k-l, 653a
(1932); DeToni, Sylloge Algarum 5: 252 (1907).
Oscillaria antliaria Juerg.
Transeau: Coles, Charleston — (Jan.). Johnson 8c Atwell 1890, p.
21, as Oscillaria antliaria: Cook, Bowmanville — (July). Drouet,
Field Mus.: La Salle, Starved Rock State Park — in water run-
ning from Salt Well, coll. by D. Richards, P. D. Voth and D. T.
Ries, Mar. 22, 1940.
P. FAVOSUM (Bory) Gom. Geitler, loc. cit., p. 1024. f. 652a-b (1932).
Drouet, Field Mus.: Dupage, Black Partridge Woods — in a
spring, coll. by P. C. Standley, J. A. Steyermark and F. Drouet,
Oct. 18, 1938.
P. FOVEOLARUM Gom. Geitler, loc. cit., p. 999. f. 636c-d (1932).
Transeau 1913B, p. 71, as P. foveolatum: Coles, Charleston — on
submerged water plants in lily pond (Sept.).
P. INCRUSTATUM var. CATARACTARUM (Nacg.) Gom. Geitler in
Pascher, Suesswass.-fl. Deutsch. 12: 386. f. 490 (1925). •
Field Mus. : St. Clair, Falling Spring— forming a firm calcareous
coating on wet rocks, coll. by F. S. Collins, P. B.-A., Mar. 29,
1918.
24 A CATALOG OF ILLINOIS ALGAE
P. INUNDATUM Kuetz. ex Gom. Geitler in Rab., Kryptog.-fl. Deutsch.
14: 1019. f. 649e (1932).
Baker 1922, pp. 80, 82-84, 86, 87: Champaign, Urbana— Bone-
yard Creek, Salt Fork and Spoon River. Transeau 1913B, p. 71 :
Clark, Oilfield — pond about 1 mile S.W. (Apr.).
P. MiNNESOTENSE (Tild.) Drouet. Drouet, Field Mus. Nat. Hist.,
Bot. Sen 20: 136 (1942).
Oscillatoria minnesotensis Tild.
Solheim & Penfound 1928, p. 86, as Oscillatoria minnesotensis:
Champaign, Urbana — small stream N. of (May, Aug.). Drouet,
Field Mus. : Cook, Chicago — roadside ditch near Calumet Lake,
coll. by King and Young, July 1941.
P. SUBFUSCUM (Ag.) Kuetz. ex Gom. Geitler in Rab., Kryptog.-fl.
Deutsch. 14: 1022. f. 652d-g (1932).
Drouet, Field Mus. : Cook, Lemont — in seepage at W. end of
quarry, coll. by G. T. Velasquez, D. Richards and F. Drouet,
Aug. 4, 1939.
P. TENUE (Menegh.) Gom. Geitler, loc. ciL, p. 1004. f. 642d-e (1932).
Drouet, Field Mus.: La Salle, Starved Rock State Park — at-
tached to sides of Salt Well, coll. by D. Richards, P. D. Voth and
D. T. Ries, Mar. 22, 1940.
P. UNCINATUM (Ag.) Gom. Geitler, loc. cit., p. 1025. f. 652h-i (1932).
Transeau 1913B, p. 71: Clark, Casey— pond (July). Coles,
Charleston — ponds, creeks, bayous, polls and ditches (Jan., Apr.,
May, Sept., Nov.); laboratory aquarium (Apr.). Drouet, Field
Mus.: Cook, Chicago — in pool of standing water in lane near
quarry at 92nd St. and Stony Island Ave., coll. by P. D. Voth
and F. Drouet, Sept. 24, 1938; Lemont — in seepage on limestone
rocks in old quarry, coll. by D. Richards and F. Drouet, Apr. 15,
1939, and by G. T. Velasquez, D. Richards and F. Drouet, Aug.
4, 1939. Transeau: Douglas, Arthur- — pond and pool (May,
Aug.). Forbes & Richardson 1913, pp. 506, 520: Grundy, Dres-
den Heights — DesPlaines River (Aug., Sept.). La Salle, Mar-
seilles— Illinois River (Aug., Oct.).
SCHIZOTHRIX Kuetzing, 1843
S. CALCicoLA (Ag.) Gom. Geitler, loc. cit., p. 1083. f. 692 (1932).
Drouet, Field Mus.: Cook, Lemont — in seepage water on lime-
stone rocks along a small stream, coll. by D. Richards and F.
Drouet, Apr. 15, 1939.
S. PURPURASCENS (Kuetz.) Gom. Geitler, loc. cit., p. 1103. f. 709
(1932).
Drouet, Field Mus.: Cook, Willow Springs — on soil by Route
4A, coll. by P. C. Standley, J. A. Steyermark and F. Drouet,
Oct. 18, 1938.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 25
S. RivuLARis (Wolle) Drouet. Drouet, Field Mus. Nat. Hist., Bot.
Sen 20: 131 (1942).
Lynghya phormidium var. rivularis Wolle ; Symploca muscorum var.
rivularis (Wolle) Tilden.
Johnson & Atwell 1890, p. 21, as Lyngbya phormidium var.
rivularis; Tilden 1910, p. 133, as Symploca muscorum var. rivu-
laris: Cook, "Big Woods" — in running water (Apr.).
SPIRULINA Turpin, 1827
S. GOMONTIANA (Setch.) Geitl. Geitler in Rab., Kryptog.-fl. Deutsch.
14: 924 (1932).
Arthrospira go ft ontiana Setch.
Transeau 1913B, p. 71, as Arthrospira gomontiana: Coles,
Charleston — ponds (Mar .-June) ; aquaria (Oct.).
S. JENNERI (Stiz.) Geitl. Geitler, loc. ciL, f. 590c (1932).
Britton: Lake, Lake Zurich — in Lake Zurich, Aug. 24, 1939,
#913, 916 (fide Dr. F. Drouet).
S. MAJOR Kuetz, ex Gom. Geitler, loc. cit. (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (Apr.-July). Transeau 1913B, p. 71: Clark, Mar-
tinsville— ditch (Oct.). Coles, Charleston^ — ponds (Mar.-Nov.).
Jasper, Newton — on moist soil (Aug.).
S. NORDSTEDTii Gom, Geitler, loc. cit., p. 930 (1932).
Solheim & Penfound 1928, p. 86: Champaign, Urbana — small
stream N. of (May).
SYMPLOCA Kuetzing, 1843
S. MUSCORUM (Ag.) Gom. Geitler, loc. cit., p. 1122. f. 730 (1932).
Drouet, Field Mus.: Coles, Charleston — coll. by E. N. Transeau,
Apr. 26, 1911 (as Lyngbya aerugineo-coerulea, F. S. Collins
scripsit). Cook, Chicago — on soil in flower pots in Univ. of Chi-
cago greenhouse, coll. by D. Richards, Sept. 19, 1939; Lemont —
on wet soil by pool in quarry at E. edge of, coll. by G. T. Ve-
lasquez, D. Richards and F. Drouet, Aug. 4, 1939; Willow
Springs — on soil in path by lake E. of, coll. by P. C. Standley,
J. A. Steyermark, and F. Drouet, Oct. 18, 1938. Dupage, Lisle —
on moist rocks in drain of lily pond at Morton Arboretum, coll. by
F. Drouet and J. A. and C. Steyermark, Oct. 27, 1940.
Suborder: HETEROCYSTINEAE
Family: NOSTOCACEAE
ANABAENA Bory, 1822
A. CATENULA (Kuetz.) B. & F. Geitler, loc. cit., p. 894 (1932).
Transeau 1913B, p. 72: Clark, Casey — pond (Oct.). Coles, Char-
leston, Lerna — ponds (May, Ju)y),
26 A CATALOG OF ILLINOIS ALGAE
A. ciRCiNALis Rab. ex B. & F. Geitler, loc. cit., p. 891. f. 572a (1932).
Galtsoff 1924, p. 399 (Hancock, Henderson). Eddy 1927B, pp.
214, 218 (Cook); 1931B, p. 460 (Pulaski); 1934, pp. 385, 391,
400, 403 (Cook, Lake, Macon, McHenry, Whiteside). Britton
(Cook, Lake, McHenry).
Cook, Argonne Forest Preserve — Maple Lake, Sept. 8, 1939,
5f986; Chicago — Lake Michigan (July); Sag Bridge — small pond,
Sept. 8, 1939, #1015. Hancock, Henderson, Mississippi River
(July). Lake, Antioch — channel between Lake Marie and Chan-
nel Lake, Sept. 14, 1939, #1033 {fide Dr. F. Drouet), Bluff Lake,
Sept. 14, 1939, #1048; Fox Lake— in Fox Lake, Petite Lake,
Aug. 25, 1939, #950, 954, 956; Long Lake— in Long Lake ("sum-
mer"); Volo— Fish Lake, Aug. 24, 1939, #935. Macon, Decatur—
in Lake Decatur, Sangamon River (June-Sept.). McHenry —
Fox River; Ridgefield — pond about 1 mile N.W., July 7, 1939,
#417. Pulaski, Wetaug— sink-hole ponds (July-Sept.). White-
side— Rock River.
A. FLOS-AQUAE (Lyngb.) Breb. ex B. & F. Geitler, loc. cit., p. 890. f.
571a-b (1932).
Galtsoff 1924, pp. 399, 402, 405: Carroll— Mississippi River
(July, Sept.). Transeau 1913B, p. 72: Clark, Casey — reservoir
pond (Sept.). Britton: Cook, Argonne Forest Preserve — Maple
Lake, Sept. 8, 1939, #986 {fide Dr. F. Drouet). Transeau, loc. cit.
(1913B): Cumberland, Greenup — pond (July). Galtsoff, loc. cit.
(1924): Hancock, Henderson, Jo Daviess, Mercer, Rock Island,
Whiteside— Mississippi River (July-Sept.).
A. iNAEQUALis (Kuctz.) B. & F. Geitler, loc. cit., p. 896. f. 578 (1932).
Anahaena laxa (Rab.) A. Br.
Solheim & Penfound 1928, p. 87: Champaign, Urbana— small
stream N. of (Apr.). Transeau 1913B, p. 72, also as A. laxa:
Clark, Casey — prairie pond (Apr.). Coles, Charleston — ponds
(May, June, Oct., Nov.). Britton: Cook, Sag Bridge — small
pond, Sept. 8, 1939, #996 (fide Dr. F. Drouet). Transeau, loc.
cit. (1913B): Douglas, Arthur — pond (July).
A. osciLLARioiDES Bory ex B. & F. Geitler, loc. cit., p. 886. f. 567e
(1932).
Tilden 1910, p. 194; Drouet, Field Mus.: Cook, Evanston—
Willow Springs, in shallow water of lake E. of, coll. by P. C.
Standley, J. A. Steyermark and F. Drouet, Oct. 18, 1938.
A. PLANCTONICA Brunnth. Geitler, loc. cit., p. 881. f. 562 (1932).
Galtsoff 1924, pp. 399, 405: Carroll, Henderson, Jo Daviess,
Mercer — Mississippi River (July, Aug.). Eddy 1931B, pp. 454,
460: Pulaski, Wetaug — sink-hole ponds (July-Sept., Dec).
Galtsoff, loc. cit. (1924): Rock Island, Whiteside^ — Mississippi
River (July, Aug.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 27
A. SPIROIDES Kleb. Geitler, loc. cit. (1932).
Galtsoff 1924, pp. 399, 402, 405: Carroll, Henderson, Jo Daviess
— Mississippi River (July-Sept.). Eddy 1934, p. 400: Lake, Long
Lake— in Long Lake ("summer"). Kofoid 1908, p. 20: Mason,
Havana — Illinois River (June-Oct.). Galtsoff, loc. cit. (1924):
Mercer, New Boston — Sturgeon Bay, Mississippi River (July,
Aug.). Rock Island, Whiteside — Mississippi River (July-Sept.).
A. SPIROIDES var. crassa Lemm. Geitler, loc. cit., p. 882. f. 563 (1932).
Eddy 1931B, pp. 454, 460: Pulaski, Wetaug — sink-hole ponds
(July-Sept.).
A. VARIABILIS Kuetz. ex B. & F. Geitler, loc. cit., p. 876. f. 558 (1932).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (Apr., July, Aug.).
APHANIZOMENON Morren, 1838
A. FLOS-AQUAE (L.) Ralfs ex B. «& F. Geitler, loc. cit., p. 824. f. 524
(1932).
Galtsoff 1924, pp. 399, 402: Carroll— Mississippi River (July,
Sept.). Hancock — Lake Keokuk, Mississippi River (July).
Henderson, Jo Daviess — Mississippi River (July-Sept.). Brit-
ton: Lake, Volo— Fish Lake, Aug. 24, 1939, #935 {fide Dr. F.
Drouet); Wauconda— Slocum Lake, Aug. 24, 1939, #926. Galts-
off, loc. cit. (1924): Mercer — ^Mississippi River (Aug.). Eddy
1931 B, p. 460: Pulaski, Wetaug — sink-hole pond (July, Sept.,
Dec). Galtsoff, loc. cit. (1924): Rock Island, Whiteside— Mis-
sissippi River (July-Sept.).
A. ovALisPORUM Forti. Geitler, loc. cit., p. 826. f. 525 (1932).
Britton: Cook, Sag Bridge— small pond, Sept. 8, 1939, #1015
{fide Dr. F. Drouet).
CYLINDROSPERMUM Kuetzing, 1843
C. LiCHENiFORME (Bory) Kuetz. ex B. & F. Geitler, loc. cit., p. 821.
f. 520e (1932).
Drouet, Field Mus. : Cook, Lemont — on moist soil by pool in
quarry at E. edge of, coll. by G. T. Velasquez, D. Richards and
F. Drouet, Aug. 4, 1939.
C. MAjus Kuetz. ex B. & F. Geitler, loc. cit., p. 815. f. 520b (1932).
Drouet, Field Mus.: Cook, Chicago — on moist soil in greenhouse
at Univ. of Chicago, coll. by P. D. Voth, J. M. Beal and F.
Drouet, Oct. 5, 1938.
C. MUSCicoLA Kuetz. ex B. «& F. Geitler, loc. cit., p. 822. f. 520d (1932).
Transeau 1913B, p. 72: Coles, Charleston — pond (May). Drouet,
Field Mus.: Cook, Lemont — on wet soil by pool in quarry at E.
edge of, coll. by G. T. Velasquez, D. Richards and F. Drouet,
Aug. 4, 1 939. Transeau : Moultrie, Sullivan — artificial pond (May).
28 A CATALOG OF ILLINOIS ALGAE
NODULARIA Mertens, 1822
N. HARVEYANA var. SPHAEROCARPA (B. & F.) Elenk. Geitler, loc. cit.,
p. 865. f. 552 (1932).
Nodularia sphaerocarpa B. & F.
Transeau 1913B, p. 71, as N. sphaerocarpa: Coles, Chareston —
floating masses in pool 4 miles N. of (May).
N. SPUMIGENA Mert. Geitler, loc. cit., p. 866 (1932).
Transeau: Coles, Lerna — pond (May).
NOSTOC Vaucher, 1803
N. CARNEUM Ag. ex B. & F. Geitler, loc. cit., p. 839. f. 530 (1932).
Transeau 1913B, p. 71 : Coles, Embarrass — shallow pool on rocks
at limestone quarry (Nov.).
N. ELLiPsosPORUM Rab. ex B. & F. Geitler, loc. cit., p. 841. f. 533
(1932).
Drouet, Field Mus. : Cook, Chicago — Univ. of Chicago green-
house, subaerial on sides of watertank, coll. by P. D. Voth,
J. M. Beal and F. Drouet, Oct. 5, 1938; floating in tank, coll. by
D. Richards, Feb. 18, 1939.
N. MUSCORUM Ag. ex B. & F. Geitler, loc. cit., p. 844. f. 535 (1932). -
Transeau 1913B, p. 71: Coles, Charleston — pools ("summer").
N. PRUNiFORME (L.) Vauch. ex B. & F. Geitler, loc. cit., p. 860. f. 548
(1932).
Forbes 1883A, p. 495; Atwell 1889, p. 291; Johnson & Atwell
1890, p. 21; Johnson (Field Mus.); Tilden 1910, p. 178: Cook,
Evanston — Lake Michigan (Aug.-Apr.).
N. SPONGIAEFORME Ag. ex B. & F. Geitler, loc. cit., p. 839. f. 531
(1932).
Drouet, Field Mus.: Cook, Evanston — coll. by L. N. Johnson.
N. VERRUCOSUM Vauch. ex B. & F. Geitler, loc. cit., p. 854. f. 43,542,-
543 (1932).
Johnson & Atwell 1890, p. 21; Tilden 1910, p. 179: Cook, Bow-
manville — (July).
Family: SCYTONEMATACEAE
PLECTONEMA Thuret, 1875
P. NOSTOCORUM Born. ex Gom. Geitler, loc. cit., p. 692. f. 445 (1932).
Britton: Cook, Palos Park — smal,l pond at Palos Golf Club,
Sept. 8, 1939, #1005 (Jide Dr. F. Drouet).
P. TOMASINIANUM Born. ex Gom. Geitler, loc. cit., p. 688. f. 442
(1932).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (June).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 29
SCYTONEMA Agardh, 1824
S. ciNCiNNATUM (Kuetz.) Thur. Bornet & Flahault, Ann. Sci. Nat.
VII. Bot. 5:89 (1887).
Johnson & Atwell 1890, p. 20; Tilden 1910, p. 214: Cook, Lakeside
—(May).
S. OCELLATUM Lyngb. ex B. & F. Geitler in Rab., Kryptog.-fl.
Deutsch. 14: 763. f. 488 (1932).
Drouet, Field Mus. : Cook, Lemont — on clay bank of creek above
quarry at E. edge of, coll. by G. T. Velasquez, D. Richards and
F. Drouet, Aug. 4, 1939.
S. TOLYPOTRiCHOiDES Kuetz. ex B. & F. Geitler, loc. cit., p. 779. f. 500
(1932).
Britton : Lake, Lake Zurich — in Lake Zurich, Aug. 24, 1939, #913
(fide Dr. F. Drouet).
TOLYPOTHRIX Kuetzing, 1843
T. TENUIS Kuetz. ex B. & F. Geitler, loc. cit., p. 716. f. 458a (1932).
Transeau 1913b, p. 72; 1916, p. 125: Clark, Oilfield— wet weather
pools (May). Coles, Ashmore, Charleston — ponds and small
stream (Apr.-Oct.). Britton: Lake, Lake Zurich — in Lake
Zurich, Aug. 24, 1939, #916 (fide Dr. F. Drouet).
Family: STIGONEMATACEAE
STIGONEMA Agardh, 1824
S. MiNUTUM (Ag.) Hass. Geitler, loc. cit., p. 513. f. 313-317 (1932).
Transeau: Coles, Charleston — pond (May).
Family: RIVULARIACEAE
AMPHITHRIX Kuetzing, 1843; Bornet & Flahault, 1886
A. JANTHINA (Mont.) B. & F. Geitler, loc. cit., p. 572. f. 572 (1932).
Drouet, Field Mus.: Dupage, Black Partridge Woods — in
stream, coll. by P. C. Standley, J. A. Steyermark and F. Drouet,
Oct. 18, 1938.
CALOTHRIX Agardh, 1824
C. KAWRAiSKYi Schmidle. Geitler, loc. cit., p. 619 (1932).
Transeau 1913B, p. 72: Coles, Charleston — epiphytic on green
algae in ponds (July, Sept.).
C. STAGNALis Gom. Geitler, loc. cit., p. 603. f. 377 (1932).
Transeau 1913B, p. 72; 1913C, p. 33\ 1916, p. 124: Coles,
Charleston — ponds (July, Sept.).
30 A CATALOG OF ILLINOIS ALGAE
GLOEOTRICHIA Agardh, 1842
G. NATANS Rab. ex B. & F. Geitler, loc. cit., p. 639. f. 406, 407 (1932).
Rivularia natans (Hedw.) Welw. ex B. & F.
Transeau 1913B, p. 72; 1913C, p. 34; 1916, p. 124, as Rivularia
natans: Coles, Charleston — ponds (May-Dec.)- Britton: Cook,
Palos Park— small pond at Palos Golf Club, Sept. 8, 1939, #1005
{fide Dr. F. Drouet). Transeau: Jasper, Newton — pond (Aug.).
G. Visum Thuret ex B. & F. Geitler, loc. cit., p. 632. f. 401 (1932).
Harper, Field Mus. : Adams, Payson — from the herbarium of
Edward T. and Susan A. Harper, coll. Sept. 3, 1893. Britton:
Lake, Antioch— in Channel Lake, Sept. 14, 1939, #1037 {fide
Dr. F. Drouet).
RAPHIDIOPSIS Fritsch, 1929
R. CURVATA Fritsch. Geitler, loc. cit., p. 658. f. 420 (1932).
Britton; Drouet, Field Mus.: Cook, Chicago — lagoon in Jackson
Park, coll. by J. M. Beal, Aug. 12, 1939; Sag Bridge— small pond,
Sept. 8, 1939, #1015 {fide Dr. F. Drouet).
Phylum: RHODOPHYTA
Class: RHODOPHYCEAE
Order: NEMALIONALES
Family: BATRACHOSPERMACEAE
BATRACHOSPERMUM Roth, 1797
B. BORYANUM Sirod. Pascher & Schiller in Pascher, Suesswass.-fl.
Deutsch. 11: 186 f. 46-48 (1925).
Transeau 1913B, p. 89: Coles, Ashmore — Polecat Creek;
Charleston — small stream (Mar., May).
Family: THOREACEAE
THOREA Bory, 1808
T. RAMOSissiMA Bory. Pascher & Schiller, loc. cit., p. 165. f. 88-90
(1925).
Hedgecock & Hunter 1899, p. 425: Sangamon River.
Phylum: CHRYSOPHYTA
Class: XANTHOPHYCEAE
Order: HETEROCOCCALES
Family: BOTRYOCOCCACEAE
CLASSIFIED CATALOG OF ILLINOIS ALGAE 31
BOTRYOCOCCUS Kuetzing, 1849
B. BRAUNii Kuetz. Tiffany, Contrib. Franz T. Stone Lab. 6: 33. pi. 14.
f. 348, 349 (1934); Smith, Freshw. Alg. U. S. p. 154. f. 98 (1933).
Ineffigiata neglecta W. & G. S. West
Transeau 1913B, p. 79; 1913C, p. 36; 1916, p. 125, as Ineffigiata
neglecta: Clark, Casey — pond (Apr., Sept.). Coles, Charleston —
ponds and laboratory aquaria (Mar.-Nov.). Kofoid 1908, pp. 23,
24, 315: Mason, Havana — Illinois River (Apr.-Dec).
B. suDETicus Lemm. Tiffany, loc. cit., f. 350 (1934).
Eddy 1931B, p. 461: Pulaski, Wetaug — sink-hole pond (Apr.).
Family: OPHIOCYTIACEAE
OPHIOCYTIUM Naegeh, 1849
O. ARBUSCULUM (A. Br.) Rab. Tiffany, loc. cit., p. 34. pi. 14. f. 346
(1934).
Transeau 1913B, p. 73: Coles, Lerna— pond (May). Britton:
Cook, Northbrook — small pond and swamp in Somme Forest
Preserve, June 27, 1938, #113; Palos Park— swamp, Sept. 8,
1939, #975.
O. CAPITATUM Wolle. Tiffany, loc. cit., p. 35. pi. 14. f. 342 (1934).
Britton: Cook, Schnells Corner — pond in Elk Grove Forest Pre-
serve, June 22, 1939, #324. Kofoid 1908, pp. 23, 26: Mason,
Havana — Illinois River (Apr.-Nov.).
O. COCHLEARE A. Br. Tiffany, loc. cit., f. 345 (1934).
Transeau 1913B, p. 73: Clark, Casey— pond (May). Coles,
Charleston — ponds, ditches, and laboratory aquaria (Feb., Mar.,
Oct., Dec). Britton: Cook, Evanston — E. Fork of N. Branch of
the Chicago River at Golf Road, Apr. 23, 1939, #232; Glenview—
swamp and intermittent pond about 1^ miles W., May 12, 1938,
#56, 58; Morton Grove^small pond about 1 mile N.W., May
10, June 23, 1938, #43, 77; Northbrook — swamp on Landwehr
Road about 3 miles S.W., and small pond and swamp on Techny
Road just E. of Landwehr Road, May 12, 1938, #60, 62; small
ponds and swamps in Somme Forest Preserve, May 15, 1938,
#65, 66, May 8, 1939, #240, 243, 248; Palos Park— swamp, July
14, 1939, #556; Sag Bridge — small pond and extensive swamp,
Sept. 8, 1939, #1021. Transeau : Douglas, Tuscola— pond (May).
Britton: Lake, Waukegan — in Dead River at Dunes Park,
May 11, 1939, #255-257; Everett — small swamp about f mile
S.W., May 15, 1938, #70; Libertyville— swamp, July 14, 1938,
#120; Volo— bog at Tamarack Farm, June 3, 1939, #294.
O. GRACILIPES Rab. Pascher, Suesswass.-fl. Deutsch. 11: 81 (1925).
Transeau 1913B, p. 73: Coles, Charleston— ponds and pools
("colder months").
32 A CATALOG OF ILLINOIS ALGAE
O. MAjus Naeg. Pascher, loc. ciL, p. 76. f. 58, 59 (1925).
Transeau: Coles, Charleston — pond (May).
O. PARVULUM (Perty) A. Br. Tiffany, Contrib. Franz T. Stone Lab. 6:
35. pi. 14. f. 344 (1:34).
Transeau 1913B, p. 73: Clark, Casey — pond (Oct., Nov.). Coles,
Charleston — ponds and pools (Apr., May). Britton 1940, p. 71:
Cook, Evanston — E. Fork of N. Branch of the Chicago River at
Golf Road, Apr. 23, 1939, #232; Glenview — swamps and inter-
mittent ponds about 1^ miles W., May 12, June 23, 1938, Apr. 7,
1939, #53, 55-57, 97; Morton Grove — small pond about 1 mile
N.W., May 10, 1938, #43; Northbrook — small ponds and swamps
on Techny Road just east and west of Landwehr Road, May 12,
1938, #62, 63, swamp and pond about 3 miles S.W., May 12,
1938, #64, small ponds and swamps in Somme Forest Preserve,
May 15, June 27, 1938, May 8, 1939, #66, 112, 240, 241, 243, 248.
Britton: Lake, Waukegan — in Dead River at Dunes Park, May
11, 1939, #255-257; Highwood— small pond. May 15, 1938, #73.
Order: HETEROTRICHALES
Family: TRIBONEMATACEAE
TRIBONEMA Derbes & Solier, 1856
T. BOMBYCiNUM (Ag.) Derb. & Sol. Hazen, Mem. Torr. Bot. Club
11: 184. pi. 25, f. 1-3 (1902)
Conferva homhycina Ag.
Transeau 1913B, p. 73; 1916, p. 124, as Conferva homhycina
(Champaign, Clark, Coles, Cumberland, Jasper, Lawrence,
Montgomery). Solheim & Penfound 1928, p. 88 (Champaign).
Britton 1940, p. 71, as T. viride Pascher (Cook). Britton (Kan-
kakee, Will).
Champaign, Urbana — pond and small stream (Mar., Apr.).
Clark, Casey— pools, ditches, small ponds and streams (Apr.,
May). Coles, Ashmore^ — pond and small stream (Apr., May);
Charleston^ — ponds, pools, ditches, swamps, draintiles, and small
streams (all months); Humboldt — ditch (Apr.); Lerna — pond
and stream (May); Mattoon — swamp (Apr.). Cook, Glenview—
small pond and swamp about \\ miles W., Apr. 7, 1939, #228;
Morton Grove — small pond about 1 mile N.W., May 10, 1938,
#43; Niles- — shallow intermittent pond on Dempster St. at Mil-
waukee Ave., Apr. 2, 1938, #1. Cumberland, Greenup — pond and
ditches (May, July, Nov.). Jasper, Rose Hill — small stream
(Apr.). Kankakee, Kankakee — in slough along Route 49A about
5 miles N., Apr. 18, 1938, #5. Lawrence, Pinkstaff — stream 3^
CLASSIFIED CATALOG OF ILLINOIS ALGAE 33
miles E. (Oct.)- Montgomery, Coffeen — pond (May). Will —
ditch on Route 30 about 5 miles S.E. of Aurora, Apr. 18, 1938,
#8.
T. BOMBYCiNUM var. TENUE (Haz.) Tiff. Hazen, loc. cit., p. 185. pi. 25.
f. 4-6 (1902); Tiffany, p. 35. f. 340 (1934).
Transeau 1913B, p. 73: Clark, Casey — ponds (Apr., July, Nov.).
Coles, Charleston, Lerna — ponds, pools, ditches, small streams,
and laboratory aquaria (Feb.-May, Sept.-Dec). Douglas,
Arthur — ditch (May). Jasper, Newton — lily pond (Aug.); Rose
Hill — small stream (Apr.). Britton: Kankakee, Kankakee — in
slough along Route 49A about 5 miles N., Apr. 18, 1938, #5.
Transeau: Lawrence, Pinkstaff — pond (Mar.). Montgomery,
Waggoner — pond (Dec). Britton: Will, Manteno — ditch about
5 miles N.W. along Route 44, Apr. 18, 1938, #6; ditch on Route
30 about 5 miles S.E. of Aurora, Apr. 18, 1938, #8.
T. MINUS (Wille) Haz. Hazen, loc. cit., f. 7, 8 (1902).
Conferva minor Klebs
Transeau 1913B, p. 74; 1916, p. 124, as Conferva minor: Cham-
paign, Urbana — pond (Apr.). Clark, Casey — ponds, ditches and
small streams (Apr., May, Nov.). Coles, Ashmore — small stream
and pools (Apr.), on rocks at mouth of spring (June, Charleston
—ponds, small streams, swamps, and ditches (Jan.-June, Oct.-
Dec); Lerna — small stream and pond (May); Loxa — ditch pool
(Apr.); Matoon — swamp (Apr.); Wrightsville — stream (June).
Britton 1940, p. 71: Cook, Glenview— swamp and intermittent
pond about \\ miles W., Apr. 7, 1939, #228; Niles— shallow in-
termittent pond on Dempster St. at Milwaukee Ave., Apr. 2,
1938, #1. Transeau: Cumberland, Greenup — ditch pool (Nov.);
Jewett — small stream about 4 miles N. (May). Douglas, Tuscola
— pond (May). Effingham, Effingham — ditch (Dec). Mont-
gomery, Coffeen — pond (Oct.). Britton: Will, Manteno — ditch
about 5 miles N.W. on Route 44, Apr. 18, 1938, #6; ditch on
Route 30 about 5 miles S.E. of Aurora, Apr. 18, 1938, #8.
T. UTRicuLOSUM (Kuetz.) Haz. Hazen, loc. cit., p. 186. pi. 25. f. 9-11
(1902).
Conferva utriculosa Kuetz.
Transeau 1913B, p. 74; 1916, p. 124, as Conferva utriculosa:
Clark, Casey — pond (Apr.). Coles, Charleston, Lerna — pond and
pools (Mar.-Nov.). Jackson, Murphysboro — (July). Lawrence,
Lawrenceville — pool (Apr.); Pinkstaff — stream 3^ miles E. of
(Oct.). Montgomery, Coffeen — pond (May).
Order: HETEROSIPHONALES
Family: BOTRYDIACEAE
34 A CATALOG OF ILLINOIS ALGAE
BOTRYDIUM Wallroth, 1815
B. GRANULATUM Grev. Pascher in Rab., Kryptog.-fl. Deutsch. 11:
1C36 (1939).
Transeau 1913B, p. 74: Coles, Charleston — (Oct.)- Drouet, Field
Mus. : Cook — in a fallow field along the DesPlaines River be-
tween Brookfield and Summit, coll, by Cora Shoop Steyermark,
Oct. 19, 1940.
B. WALROTHii (Kuetz.). Mill. Pascher, loc. ciL, p. 1041. f. 881 (1939).
Transeau 1913B, p. 74; 1913C, p. 36; 1916, p. 125: Coles,
Charleston — on moist soil in school garden (Sept., Oct.).
Class: CHRYSOPHYCEAE
Order: CHRYSOMONADALES
Suborder: CHROMULINEAE
Family: MALLOMONADACEAE
CHRYSOSPHAERELLA Lauterborn, 1896
C. LONGispiNA Lauterb. Smith, Bull. Wis. Geol. & Nat. Hist. Sur.
57(1): 69. pi. 12. f. 7, 8 (1920).
Daily 1938, p. 79: Cook, Evanston— Lake Michigan.
MALLOMONAS Perty, 1852
M. ACAROIDES Perty. Pascher in Suesswass.-fl. Deutsch. 2: 39. f. 64
(1913); Smith, Freshw. Alg. U. S., p. 173 (1933).
Mallomonas plosslii Perty
Kofoid 1908, p. 83, as M. plosslii: Mason, Havana — Illinois
River (June, July).
M. CAUDATA Iwan. Smith, Bull. Wis. Geol. & Nat. Hist. Surv. 57(1):
69. pi. 12. f. 6 (1920).
Eddy 193 IB, p. 464: Pulaski, Wetaug — sink-hole ponds (Apr.,
July, Sept., Dec).
M. PRODUCTA Iwan. Smith, loc. ciL, p. 68. pi. 12. f. 2 (1920).
Eddy 1931 B, p. 463: Pulaski, Wetaug^ — sink-hole pond (Apr.,
Dec).
Suborder: ISOCHRYSIDINEAE
Family: SYNCRYPTACEAE
SYNCRYPTA Ehrenberg, 1833
S. VOLVOX Ehr. Pascher in Suesswass.-fl. Deutsch. 2: 43. f. 67 (1913).
Kofoid 1908, pp. 67, 87, 324: Mason, Havana— Illinois River
(Feb.-Apr., Sept., Nov.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 35
Family: SYNURACEAE
SYNURA Ehrenberg, 1838
S. UVELLA Ehr. Tiffany, Contrib. Franz. T. Stone Lab. 6: 29. pi. 13.
f. 329 (1934).
Eddy 1934, pp. 385, 386, 389-391, 396, 397, 399, 400: Adams-
Mississippi River (June). Alexander- — Horseshoe Lake (June-
Aug.). Calhoun — Mississippi River (June). Champaign, Urbana
—ox-bow pond (Feb., Mar.). Hempel 1898, p. 327; Kofoid 1903,
pp. 385, 516; 1908, pp. 67, 87, 324: Fulton— Illinois River and
adjacent lakes (Jan.-Apr., July, Oct.-Dec). Eddy, loc. cit.
(1934): Hancock, Jersey — Mississippi River (June). Macon —
Sangamon River (Jan.-Apr., Aug.-Dec). Madison — Mississippi
River (June). Hempel, loc. cit. (1898); Kofoid, loc. cit. (1903,
1908) : Mason, Havana — Illinois River and adjacent lakes (Jan.-
Apr., July, Oct.-Dec); Topeka — Quiver Creek (Nov.). Eddy,
loc. cit. (1934): Pike, St. Clair— Mississippi River (June).
Union, Larue — Wolf Lake (June, Aug.). Wabash, Mt. Carmel —
Wabash River (Apr.).
Suborder: OCHROMONADINEAE
Family: OCHROMONADACEAE
DINOBRYON Ehrenberg, 1835
D. BAVARICUM Imhof. Ahlstrom, Trans. Amer. Micr. Soc. 56: 154. pi.
3. f. 1-29 (1937).
Dinohryon elongatum Imhof; Dinohryon stipitatum var. bavaricum
Zach.
Ahlstrom 1937, p. 154: Cook— Lake Michigan (June, July).
Kofoid 1908, p. 78, as D. elongatum and D. stipitatum var.
bavaricum: Mason, Havana — Illinois River.
D. CYLINDRICUM Imhof. Ahlstrom, loc. cit., p. 148. pi. 2. f. 26-43
(1937).
Dinobryon cylindricum var. palustre Lemm.
Ahlstrom 1937, p. 148: Cook— Lake Michigan (May-July).
Kofoid 1908, p. 78, as D. c. var. palustre: Mason, Havana —
Illinois River.
D. DiVERGENS Imhof. Ahlstrom, loc. cit., p. 142. pi. 1. f. 1-36 (1937).
Dinobryon cylindricum var. diver gens Lemm.
Ahlstrom 1937, pp. 142, 145: Cook— Lake Michigan (July, Aug.,
Oct.). Lake, Antioch — Petite Lake (June); Diamond Lake — in
Diamond Lake (June); Fox Lake — in Fox Lake (June); Lake
Villa— Cedar Lake (June). Kofoid 1908, p. 78, as D. c. var.
divergens: Mason, Havana — Illinois River.
36 A CATALOG OF ILLINOIS ALGAE
D. PEDiFORME (Lemm.) Stein. Ahlstrom, loc. cit., p. 146. pi. 1. f. 37-
45 (1937).
Dinobryon cylindricum var. pediforme Lemm.
Kofoid 1908, p. 78, as D. c. pediforme: Mason, Havana — Illinois
River.
D. SERTULARIA Ehr. Ahlstrom, loc. cit., p. 149. pi. 2. f. 1-16 (1937).
Dinobryon sertularia var. thyrsoideum (Chod.) Lemm.
Jelliffe 1893, p. 311 (Cook). Hempel 1898, p. 323; Kofoid 1908,
pp. 73, 74, 78, 320, also as D. s. var. thyrsoideum (Mason). Eddy
1927B, pp. 209, 216, 225 (Cook); 1931A, pp 479, 481 (Cass,
Macon, Sangamon); 1931B, pp. 451, 464 (Pulaski); 1934, p. 46
(Cook). Britton (Cook, Lake).
Cass, Chandlerville — Sangamon River (June). Cook, Chicago
— Lake Michigan (July, Aug.); Glenview— swamps and tempo-
rary ponds about 1| miles W., May 12, 1938, Apr. 7, 1939, #56,
228; Park Ridge — shallow pond at Dempster St. and Milwaukee
Ave., June 23, 1938, #84. Lake, Waukegan— in Dead River at
Dunes Park, May 11, 1938, #255-257. Macon— Lake Decatur
(June, July); Harristown^ — Sangamon River (June, July).
Mason, Havana — Illinois River (Nov.-June). Pulaski, Wetaug
— sink-hole ponds (Apr., July, Sept., Dec). Sangamon, Illiopolis
— Sangamon River (June, July).
D. SERTULARIA var. PROTUBERANS (Lemm.) Krieg. Ahlstrom, loc. cit.,
p. 150. pi. 2. f. 17-25 (1937).
Dinobryon protuberans Lemm.
Ahlstrom 1937, p. 150: Cook— Lake Michigan (Aug.). Kofoid
1908, p. 78, as D. protuberans: Mason, Havana — Illinois River.
D. sociALE Ehr. Ahlstrom, loc. cit., pi. 3. f. 37-52 (1937).
Ahlstrom 1937, p. 152: Cook — Lake Michigan (June-Aug.).
Lake, Diamond Lake — in Diamond Lake (June) ; Wauconda —
Bangs Lake (June). Kofoid 1908, p. 78: Mason, Havana— Illinois
River.
D, SOCIALE var. americanum (Brunnth.) Bachm. Ahlstrom, loc. cit.,
p. 153. pi. 3. f. 30-36 (1937).
Dinobryon stipitatum var. americanum Brunnth.
Ahlstrom 1937, p. 153: Cook— Lake Michigan (May, June).
Kofoid 1908, p. 78, as D. s. var. americanum: Mason, Havana —
Illinois River.
Order: RHIZOCHRYSIDALES
Family: RHIZOCHRYSIDACEAE
RHIZOCHRYSIS Pascher, 1913
R. limnetica Smith. Smith, Bull. Wis. Geol. & Nat. Hist. Surv.
57(1): 77. pi. 14. f. 6 (1920).
Eddy 1927B, p. 215: Cook, Chicago— Lake Michigan (July).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 37
Class: BACILLARIOPHYCEAE
Order: CENTRALES
Suborder: COSCINODISCINEAE
Family: COSCINODISCACEAE
COSCINODISCUS Ehrenberg, 1838
C. ASTEROMPHALUS Ehr. Boycr, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1): 56 (1927).
This species is apparently the one intended but misspelled as
C. asteromorphus in Ahlstrom 1936, p. 291: Cook, Evanston —
Lake Michigan.
CYCLOTELLA Kuetzing, 1834
C. ANTIQUA W. Smith. Boyer, loc. cit., p. 39 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
C. BODANICA Eulenst. Boyer, loc. cit., p. 40 (1927).
Skvortzow 1937, p. 656: Cook, Chicago — Lake Michigan (Jan.).
C. BODANICA var. MiCHiGANENSis Skvortz. Skvortzow, Amer. Midi.
Nat. 18: 658. pi. 1. f. 31 (1937).
Skvortzow 1937, p. 658: Cook, Chicago — Lake Michigan (Jan.).
C. BODANICA var. STELLATA Skvortz. Skvortzow, loc. cit., f. 30 (1937).
Skvortzow 1937, p. 658: Cook, Chicago — Lake Michigan (Jan.).
C. COMTA (Ehr.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila 78(Suppl.
1):40 (1927).
Thomas & Chase 1887, p. 328; Skvortzow 1937, p. 654: Cook,
Chicago^ — Lake Michigan (Jan.).
C. COMTA var. GLABRiuscuLA Grun. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10: 103 (1930).
Skvortzow 1937, p. 655: Cook, Chicago— Lake Michigan (Jan.).
C. GLOMERATA Bachm. Hustedt, loc. cit., p. 105. f. 81 (1930).
Daily 1938, p. 79: Cook, Evanston— Lake Michigan.
C. KUETZINGIANA Thw. Boyer, Proc. Acad. Nat. Sci. Phila. 78(Suppl.
1):38 (1937).
Briggs 1872A, p. 43; Skvortzow 1937, p. 655: Cook, Chicago-
Lake Michigan (Jan.). Forbes & Richardson 1913, p. 505:
Grundy, Dresden Heights — DesPlaines River. Kofoid 1908,
pp. 43, 48, 292, 317: Mason, Havana — Illinois River (all
months).
C. MELOSiROiDEs (Kirch.) Lemm. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 106. f. 82 (1930).
Daily 1938, p. 79: Cook, Evanston— Lake Michigan.
C. MENEGHINIANA Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1):38 (1927).
Galtsoff 1924, pp. 399, 402, 404, 405: Carroll— Mississippi River
38 A CATALOG OF ILLINOIS ALGAE
(July, Sept.). Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328;
Skvortzow 1937, p. 655: Cook, Chicago — Lake Michigan (Jan.).
Galtsoff, loc. cit. (1924): Hancock, Henderson, Jo Daviess,
Mercer, Rock Island, Whiteside — Mississippi River (July,
Sept.).
C. MiCHiGANiANA Skvortz. Skvortzow, Amer. Midi. Nat. 18: 658. pi,
1. f. 3, 10, 18 (1937).
Skvortzow 1937, p. 658: Cook, Chicago — Lake Michigan (Jan.).
C. OCELLATA Pant. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
100. f. 68 (1930).
Skvortzow 1937, p. 655: Cook, Chicago — Lake Michigan (Jan.).
C. OPERCULATA (Ag.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1):39 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; Skvortzow
1937, p. 655; Cook, Chicago — Lake Michigan (Jan.).
MELOSIRA Agardh, 1824
M. CRENULATA (Ehr.) Kuetz. Boyer, loc. cit., p. 29 (1927).
Galtsoff 1924, pp. 399, 401, 402, 404, 405, 409, 410: Carroll-
Mississippi River (July, Sept.). Thomas & Chase 1887, p. 329:
Cook, Chicago — Lake Michigan. Galtsoff, loc. cit. (1924): Han-
cock, Henderson, Jo Daviess, Mercer — Mississippi River (July-
Sept.). Rock Island — Mississippi and Rock Rivers (July-Sept.).
Whiteside^ — Mississippi River (July-Sept.).
M. DisTANS (Ehr.) Kuetz. Boyer, loc. cit., p. 30 (1927).
Gaillonella distans Ehr.
Bailey 1845, p. 34, as Gaillonella distans: St. Clair — Mississippi
River.
M. GRANULATA (Ehr.) Ralfs. Boyer, loc. cit. (1927) ; Mills, Index Diat.
pp. 895, 929 (1934).
Melosira granulata var. spinosa Balach.; Lysigonium granulatum
(Ehr.) Kuntze.
Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329; Jelliffe 1893,
p. 311 (Cook). Kofoid 1908, pp. 11, 35, 43, 52, 292, 318, as M. g.
var. spinosa (Mason). Forbes & Richardson 1913, p. 500; 1919,
p. 145, as M. g. var. spinosa (LaSalle, Peoria, Putnam). Galtsoff
1924, p. 402 (Mississippi River). Eddy 1927B, pp. 208, 219, as
Lysigonium granulatum (Cook); 1927A, pp. 127, 136 (Cham-
paign). Eddy & Simer 1929, p. 62, as Lysigonium granulatum
(Morgan). Eddy 1931A, pp. 474, 477, 480, 483, 486, as Lysigon-
ium granulatum (Cass, Macon, Menard, Sangamon); 1931B, p.
460, as Lysigonium granulatum (Pulaski) ; 1934, pp. 385, 386, 388-
391, 395, 399, 400, 402, 403, as Lysigonium granulatum (Adams,
Alexander, Calhoun, Champaign, Cook, Hancock, Jackson,
Jersey, Lake, Macon, Madison, Mason, Massac, McHenry,
CLASSIFIED CATALOG OF ILLINOIS ALGAE 39
Monroe, Ogle, Pike, Pulaski, Randolph, St. Clair, Union, Wa-
bash, Whiteside).
Adams — Mississippi River (June). Alexander — Horseshoe
Lake (June-Aug.); Mississippi River and Ohio River (June).
Calhoun — Mississippi River (June). Cass, Chandlerville — Sanga-
mon River (June-Sept.). Champaign, Urbana — Crystal Lake
(Feb.-Oct.). Cook, Chicago— Lake Michigan. Hancock, Jackson,
Jersey — Mississippi River (June). Lake, Long Lake— in Long
Lake ("summer"). La Salle, Starved Rock — Illinois River.
Macon, Decatur^Lake Decatur (all months); Harristown —
Sangamon River (June-Sept.). Madison^Mississippi River
(June). Mason, Havana — Illinois River (all months). Massac
— Ohio River (June). McHenry, Algonquin— Fox River (June).
Menard, Petersburg — Sangamon River (June-Sept.). Monroe —
Mississippi River (June). Morgan, Meredosia— Illinois River.
Ogle, Grand Detour— slough (June-Aug.). Peoria, Chillicothe —
Illinois River. Pike — Mississippi River (June). Pulaksi — Missis-
sippi and Ohio Rivers (June); Wetaug — sink-hole ponds (Sept.
Dec). Putnam, Hennepin — Illinois River. Randolph — Missis-
sippi River (June). Sangamon, Illiopolis, Riverton, Springfield
— Sangamon River (June-Sept.). St. Clair — Mississippi River
(June). Union, Larue— Wolf Lake (June-Aug.); Mississippi
River (June). Wabash, Mt. Carmel— Wabash River (Apr.).
Whiteside, Erie — Hatwood Slough (June-Aug.); Sterling— Rock
River ("summer").
M. ITALICA (Ehr.) Kuetz. Hustedtin Pascher, Suesswass.-fl. Mitteleur.
10:91. f. 50 (1930).
Transeau: Lawrence, Pinkstaff — pond (Nov.).
M. ITALICA var. tenuissima (Grun.) O. Muell. Hustedt, loc. cit.
(1930).
Transeau: Coles, Charleston — pond (Apr.).
M. jUERGENSii Ag. Boyer, Proc. Acad. Nat. Sci. Phila. 78(Suppl. 1):
27 (1927); Mills, Index Diat., p. 950 (1934).
Melosira suhflexiUs Kuetz.
Galtsoff 1924, p. 402, as M. suhflexiUs: Hancock— Lake Keokuk
(Mississippi River).
M. VARIANS Ag. Boyer, loc. cit. (1927).
Lysigonium varians (Ag.) DeToni
Eddy 1934, p. 387, as Lysigonium varians: Champaign, Mahomet
—Sangamon River (Mar.-Oct.). Transeau 1913B, p. 73: Coles,
Ashmore — Polecat Creek (Oct.); Charleston — ponds, Embarrass
River and small creeks (Mar.-June, Oct.-Feb.). Thomas &
Chase 1887, p. 329; Eddy 1927B, pp. 208, 214, 219: Cook,
Chicago — Lake Michigan (Apr.-Dec). Transeau: Cumberland,
Greenup — ditch (Nov.). Edgar, Paris — reservoir (July). Jasper,
40 A CATALOG OF ILLINOIS ALGAE
Bogota — creek 6 miles S.W. (Aug.). Lawrence, Pinkstaff — ponds,
small streams, bayous, and horsetrough (June, Aug., Oct.).
Agersborg 1930, p. 110: Macon, Decatur — warm waste-water
ditch (Dec.-Feb.). Kofoid 1903, p. 516; 1908, pp. 11, 35, 43, 55,
292, 318: Mason, Havana — Illinois River (all months); Topeka
— Quiver Creek (Sept.-Dec). Eddy 1931 B, p. 451, as Lysigonium
varians: Pulaski, Wetaug — sink-hole pond (Apr.).
STEPHANODISCUS Ehrenberg, 1845
S. ASTRAEA (Ehr.) Grun. Boyer, loc. cit., p. 61 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan.
S. ASTRAEA var. INTERMEDIA Fricke. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10: 110 (1930).
Skvortzow 1937, p. 653: Cook, Chicago — Lake Michigan (Jan.).
S. ASTRAEA var. MiNUTULA (Kuetz.) Grun. Boyer, Proc. Acad. Nat. Sci.
Phila. 78(Suppl. 1): 61 (1927); Mills, Index Diat., p. 1482 (1934).
Stephanodiscus minutus Grun.
Thomas & Chase 1887, p. 330; Jelliffe 1893, p. 311, as S. minutus;
Skvortzow 1937, p. 654: Cook, Chicago — Lake Michigan (Jan.).
S. HANTZSCHii Grun. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
110. f. 87 (1930).
Skvortzow 1937, p. 654: Cook, Chicago — Lake Michigan (Jan.).
S. NIAGARAE Ehr. Boycr, Proc. Acad. Nat. Sci. Phila. 78(Suppl. 1):
61 (1927).
Galtsoff 1924, pp. 399, 402, 404, 405, 410: Carroll— Mississippi
River (July, Sept.). Babcock 1872A, p. 13; 1872B, p. 104; Briggs
1872A, p. 44; Thomas & Chase 1887, p. 330; Jelliffe 1893, p. 311;
Eddy 1927B, pp. 208, 214, 219; Skvortzow 1937, p. 653: Cook,
Chicago — Lake Michigan (May-Sept., Jan.). Galtsoff, loc. cit.
(1924): Hancock, Henderson, Jo Daviess^ — Mississippi River
(July-Sept.). Kofoid 1908, pp. 43, 58: Mason, Havana — Illinois
River (May). Galtsoff, loc. cit. (1924): Mercer, Rock Island,
Whiteside — Mississippi River (July-Sept.).
S. NIAGARAE var. MAGNIFICA Fricke. Skvortzow, Amer. Midi. Nat. 18:
653 (1937).
Skvortzow 1937, p. 653: Cook, Chicago — Lake Michigan (Jan.).
Family: EUPODISCACEAE
ACTINOCYCLUS Ehrenberg, 1837
A. NIAGARAE H. L, Smith. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1): 86 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 41
Suborder: RHIZOSOLENINEAE
Family: RHIZOSOLENIACEAE
RHIZOSOLENIA Ehrenberg, 1843; Brightwell, 1858;
Peragallo, 1892
R. ERiENsis H. L. Smith. Boyer, loc. cit., p. 98 (1927).
Briggs 1872A, p. 44; 1872B, p. 14; Smith 1878, p. 15; Thomas &
Chase 1887, p. 330: Cook, Chicago— Lake Michigan. Kofoid
1908, pp. 43, 57: Mason, Havana — Illinois River ("winter").
R. LONGISETA Zach. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
114. f. 91 (1930); Mills, Index Diat., pp. 1404, 1406 (1934).
Rhizosolenia gracilis H. L. Smith
Thomas & Chase 1887, p. 330, as R. gracilis: Cook, Chicago —
Lake Michigan.
Order: PENNALES
Suborder: FRAGILARINEAE
Family: TABELLARIACEAE
TABELLARIA Ehrenberg, 1839
T. FENESTRATA (Lyngb.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila.
78(Suppl. 1): 151 (1927). "
Striatella fenestrata (Lyngb.) Kuntze.
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 44;
Thomas & Chase 1887, p. 330; Jehiffe 1893, p. 310 (Cook).
Kofoid 1908, pp. 43, 59 (Mason). Forbes & Richardson 1913, pp.
500, 505 (Grundy); 1919, p. 145; Eddy 1927B, pp. 208, 214, 219,
as Striatella fenestrata (Cook). Purdy 1930, pp. 63, 77, 79, 81, 85,
100, 101, 105-108, 117, 119, 121, 124, 157 (Fulton, Grundy, La
Salle, Peoria, Will). Eddy 1934, p. 400 (Cook). Ahlstrom 1936,
p. 290 (Cook). Daily 1938, pp. 74, 79 (Cook).
Cook, Chicago, Evanston— Lake Michigan (all months).
Fulton— Spoon River (Dec.-Feb.). Grundy, Dresden Heights —
DesPlaines and Illinois Rivers (July-Sept.); Morris — Illinois
River (Dec.-Feb., June-Aug.). La Salle, La Salle, Marseilles —
Illinois River (June-Feb.). Mason, Havana — Illinois River.
Peoria, Chillicothe, Peoria — Illinois River (all months). Will,
Lockport — Chicago Drainage Canal.
T. FLOCCULOSA (Roth) Kuetz. Boyer, loc. cit., p. 152 (1927); Mills,
Index Diat., pp. 1501, 1593 (1934).
Striatella fiocculosa (Roth) Kuntze
Thomas & Chase 1887, p. 330; Jelliffe 1893, p. 310 (Cook);
Forbes & Richardson 1913, pp. 495, 500, 505 (Grundy, La Salle,
Peoria); 1919, p. 145; Eddy 1927B, pp. 208, 214, 219, as Stri-
atella fiocculosa (Cook). Purdy 1930, pp. 63, 80, 81, 106, 112,
42 A CATALOG OF ILLINOIS ALGAE
119, 124, 132, 134, 145, 156 (Fulton, La Salle, Marshall, Mason,
Peoria, Will). Daily 1938, p. 74, 79 (Cook).
Cook, Chicago, Evanston — Lake Michigan (all months). Ful-
ton— Spoon River (Sept.-Nov.). Grundy, Dresden Heights —
DesPlaines and Illinois Rivers (July-Sept.). La Salle, La Salle,
Marseilles — Illinois River (July-Nov.). Marshall, Henry —
Illinois River. Mason, Havana — Illinois River (Mar.-May).
Peoria, Chillicothe, Peoria — Illinois River (all months). Will,
Joliet — DesPlaines River (Mar .-Aug.); Lockport — Chicago
Drainage Canal.
Family: MERIDIONACEAE
MERIDION Agardh, 1824
M. CIRCULARE (Grev.) Ag. Boyer, loc. cit., p. 172 (1927); Mills, loc.
ciL, p. 956 (1934).
Meridian circulare var. zinkenii (Kuetz.) Grun.
Transeau 1913B, p. 73, as M. c. var. zinkenii: Coles, Ashmore —
in a spring (May); Charleston, Dorans, Lerna, Loxa — small
streams, ditches, draintile, and ponds (Mar.-May, Oct., Nov.).
Thomas & Chase 1887, p. 329: Cook, Chicago^ — Lake Michigan.
Transeau: Lawrence, Pinkstaff — pond (Nov.). Kofoid 1903,
p. 516; 1908, pp. 43, 57: Mason, Havana — Illinois River (Dec-
Mar.); Topeka — Quiver Creek (Apr.).
M. CIRCULARE var. CONSTRICTA (Ralfs) V. H. Hustedt in Pascher,
Suesswass.-fl. Mitteleur. 10: 131. f. 119 (1930); Mills, loc. cit., pp.
956, 957 (1934).
Meridian canstrictum Ralfs.
Transeau, as M. canstrictum: Coles, Charleston — small stream
(Mar.). Agersborg 1930, p. 106, as il/. canstrictum: Macon, Deca-
tur— warm waste-water ditch (Dec.-Feb.).
Family: DIATOMACEAE
DIATOMA DeCandolle, 1805
D. ANCEPS (Ehr.) Kirch. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1): 176 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
D. ELONGATUM var. TENUIS (Ag.) V. H. Boyer, loc. cit. (1927).
Kofoid 1908, pp. 43, 49, 292, 317: Mason, Havana— Illinois
River (all months).
D. HiEMALE (Lyngb.) Heib. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 129. f. 115 (1930); Mills, Index Diat., p. 590 (1934).
Diatoma hiemale var. genuina Grun.
Transeau, as D. h. var. genuina: Lawrence, Pinkstaff — pond
(Nov.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 43
D. HiEMALE var. MESODON (Ehr.) Grun. Boyer, Proc. Acad. Nat. Sci.
Phila. 78 (Suppl. 1): 176 (1927).
Transeau: Lawrence, Pinkstaff — pond (Nov.).
D. VULGARE Bory. Boyer, loc. cit., p. 174 (1927).
Kofoid 1903, p. 516; 1908, p. 50: Mason, Havana — Illinois River
("sparingly at irregular intervals"); Topeka — Quiver Creek
(Sept.-Apr.),
Family: FRAGILARIACEAE
ASTERIONELLA Hassall, 1850
A. FORMOSA Hass. Boyer, loc. cit., p. 213 (1927).
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 42;
Thomas & Chase 1887, p. 328; Jelliffe 1893, p. 310: Cook, Chi-
cago— Lake Michigan. Kofoid 1908, p. 43: Mason, Havana
— Illinois River (Nov.-Apr.).
A. GRACILLIMA (Hantz.) Heib. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 147. f. 157 (1930).
Eddy 1934, pp. 385, 386, 400: Adams, Calhoun — Mississippi
River (June). Eddy 1927B, pp. 207, 208, 215, 220] loc. cit. (1934):
Cook, Chicago — Lake Michigan (Apr., May, Sept.-Dec). Eddy,
loc. cit. (1934): Hancock, Jersey — Mississippi River (June).
Lake, Lake Villa — Sand Lake ("summer"). Agersborg 1930,
p. 110: Macon, Decatur— warm waste-water ditch (Dec.-Feb.).
Eddy, loc. cit. (1934): Madison — Mississippi River (June). Eddy,
loc. cit. (1934); Kofoid 1908, pp. 43, 44, 317: Mason, Havana-
Illinois River (all months). Eddy, loc. cit. (1934): Pike, St. Clair
—Mississippi River (June). Wabash, Mt. Carmel^ — Wabash
River (Apr.). Whiteside, Sterling — Rock River ("summer").
FRAGILARIA Lyngbye, 1819; Rabenhorst, 1864
F. CAPUCiNA Desmaz. Boyer, Proc. Acad. Nat. Sci. Phila. 78 (Suppl.
1): 187 (1927); Mills, Index Diat., pp. 715, 743 (1934).
Fragilaria rhabdosoma Ehr.
Baker 1922, pp. 84, 85, 87: Champaign, Urbana — Salt Fork and
Spoon River. Transeau: Coles, Charleston, Loxa — ponds, ditches
and small streams (Mar., Apr., Oct., Nov.). Briggs 1872A, p. 43;
Thomas & Chase 1887, p. 328; Jelliffe 1893, p. 310: Cook, Chi-
cago— Lake Michigan. Bailey 1845, p. 34, as F. rhabdosoma: St.
Clair — Mississippi River.
F. CAPUCINA var. mesolepta Rab. Boyer, loc. cit. (1927).
Transeau: Coles, Charleston — ponds (Apr., Oct.). Thomas &
Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
44 A CATALOG OF ILLINOIS ALGAE
F. CONSTRICTA Ehr. Hustedt in Rab., Kryptog.-fl. Deutsch. 7(2): 166.
f. 674a-c (1931).
Bailey 1845, p. 34: St. Clair — Mississippi River.
F. coNSTRUENS (Ehr.) Grun. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1): 188 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
F. CONSTRUENS var. VENTER (Ehr.) Grun. Hustedt in Pascher, Suess-
wass.-fl. Mitteleur. 10: 141 f. 138 (1930).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
F. CROTONENSis Kitton. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1): 187 (1927); Mills, Index Diat., pp. 730, 1557 (1934).
Synedra crotonensis Grun.
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 43;
Thomas & Chase 1887, p. 330, as Synedra crotonensis (Cook).
Kofoid 1908, pp. 35, 43, 50, 317 (Mason). Galtsoff 1924, pp.
399, 404, 405, 410 (Carroll, Hancock, Henderson, Jo Daviess,
Mercer, Rock Island, Whiteside). Eddy 1927B, pp. 208, 214, 219
(Cook). Eddy 1934, p. 400 (Cook, Lake). Daily 1938, p. 79.
(Cook).
Carroll — Mississippi River (July, Sept.). Cook, Chicago,
Evanston — Lake Michigan (all months). Hancock, Dallas City
— Lake Keokuk (Mississippi River) (July, Sept.). Henderson,
Jo Daviess — Mississippi River (July- Sept.). Lake, Lake
Villa — Sand Lake ("summer"); Long Lake — in Long Lake
("summer"). Mason, Havana — Illinois River (Feb.-May, Dec).
Mercer, Rock Island, Whiteside — Mississippi River (July-
Sept.).
F. CROTONENSIS var. PROLONGATA Grun. Boyer, loc. cit. (1927).
Synedra crotonensis var. prolongata Grun.
Thomas & Chase 1887, p. 330, as S. c. var. prolongata: Cook,
Chicago — Lake Michigan.
F. HARRisoNii (W. Sm.) Grun. Boyer, loc. cit., p. 189 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
F. HARRISONII var. rhomboides Grun. Hustedt in Pascher, Suess-
wass.-fl. Mitteleur. 10: 140. f. 133 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
F. PINNATA Ehr. Hustedt, loc. cit., p. 142. f. 141 (1930); Mills, Index
Diat., pp. 737, 741 (1934).
Fragilaria mutabilis (W. Sm.). Grun.
Thomas & Chase 1887, p. 328, as F. mutabilis: Cook, Chicago —
Lake Michigan.
F. PINNATA var. LANCETTULA (Schum.) Hust. Hustedt in Pascher
Suesswass.-fl. Mitteleur. 10: 142. f. 142 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 45
F. viRESCENS Ralfs. Boyer, Proc. Acad. Nat. Sci. Phila. 78 (Suppl. 1) :
184 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; Eddy 1927B,
pp. 208, 214, 219: Cook, Chicago— Lake Michigan (Apr.-Dec).
Forbes & Richardson 1913, p. 505: Grundy, Dresden Heights —
DesPlaines River. Kofoid 1903, p. 516; 1908, pp. 35, 43, 50, 292,
317: Mason, Havana — Illinois River (all months); Topeka —
Quiver Creek (Mar., Apr., Nov., Dec). Eddy & Simer 1929
p. 62: Morgan, Meredosia — Illinois River.
SYNEDRA Ehrenberg, 1830
S. Acus Kuetz. Boyer, loc. cit., p. 201 (1927).
Transeau: Coles, Charleston— small streams and ponds (Dec,
Jan., May). Kofoid 1903, p. 513; 1908, pp. 35, 43, 58, 292, 318,
319: Mason, Havana — Illinois River and seepage areas on river
bank (all months); Topeka — Quiver Creek (Oct.-Apr.).
S. ACUS var. radians (Kuetz.) Hust. Hustedt in Rab., Kryptog.-fl.
Deutsch 7(2): 202. f. 693b (1932).
Synedra acus var. delicatissima W. Smith ; Synedra delicatissima W.
Smith; Synedra radians Kuetz.; Synedra tenuissima Kuetz.
Thomas & Chase 1887, p. 330, as 5. delicatissima (Cook).
Kofoid 1908, pp. 43, 58, as S. a. var. delicatissima (Mason).
Purdy 1922, p. 53, as S. delicatissima (Massac, Pope). Galtsofif
1924, pp. 399, 402, 404, 410, as 5. delicatissima (Carroll, Han-
cock, Henderson, Jo Daviess, Mercer, Rock Island, Whiteside).
Eddy 1927B, p. 208, 214, 220, as 6". tenuissima (Cook). Purdy
1930, p. 134, as S. delicatissima and S. radians (Peoria, Will).
Eddy 1931A, pp. 480, 483, 486 (Cass, Macon, Menard, Sanga-
mon) ; 1931B, p. 453, 460, as S. tenuissima (Pulaski). Daily 1938,
p. 79, as S. radians (Cook). Transeau, as S. delicatissima (Clark,
Coles).
Carroll — Mississippi River (July, Sept.). Cass, Chandlerville
— Sangamon River (July, Sept.). Clark — Whetstone Creek
(Oct.). Coles, Charleston — pond (Oct.); Wrightsville — in a
spring (Apr.). Cook, Chicago, Evanston^ — Lake Michigan (May,
July, Nov.). Hancock, Dallas City— Lake Keokuk (Mississippi
River) (July-Sept.). Henderson, Jo Daviess— Mississippi River
(July-Sept.). Macon, Decatur — Lake Decatur (June, July);
Harristown — Sangamon River (July). Mason, Havana — Illinois
River. Massac^ — Ohio River (Aug.-Oct.). Menard, Petersburg —
Sangamon River (June, July, Sept.). Mercer, New Boston —
Mississippi River (July-Sept.). Peoria, Peoria — Illinois River
(Dec-Feb.). Pope— Ohio River (Aug.-Oct.). Pulaski, Wetaug —
sink-hole pond (Dec). Rock Island — Mississippi River (July-
46 A CATALOG OF ILLINOIS ALGAE
Sept.)- Sangamon, Illiopolis, Riverton, Springfield — Sangamon
River (July, Sept.)- Whiteside — Mississippi River (July, Sept.).
Will, Lockport — DesPlaines River (May).
S. CAPITATA Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 78 (Supp. 1) : 203
(1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
Kofoid 1908, p. 59: Mason, Havana — Illinois River ("spring
months").
S. DORSiVENTRALis Mucll. Mills, Index Diat., p. 1560 (1934).
Transeau: Coles, Charleston^ — small stream (Mar.).
S. HYALINA Prov. Mills, loc. cit., p. 1566 (1934).
Kofoid 1908, p. 58: Mason, Havana — Illinois River.
S. PARASITICA (W. Sm.) Hust. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 161. f. 195 (1930).
Fragilaria parasitica (W. Sm.) Grun.
Thomas & Chase 1887, p. 328, as Fragilaria parasitica; Ahlstrom
1936, p. 292: Cook, Chicago, Evanston — Lake Michigan.
S. PULCHELLA (Ralfs) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 78
(Suppl. 1): 198 (1927).
Baker 1922, pp. 80, 86: Champaign, Urbana — Boneyard Creek
and Salt Fork. Transeau: Coles, Charleston — small streams
(Mar.). Briggs 1872A, p. 44; Thomas & Chase 1887, p. 330;
Jelliffe 1893, p. 310: Cook, Chicago — Lake Michigan. Agersborg
1930, p. 110: Macon, Decatur — warm waste-water ditch (Dec-
Feb.).
S. RUMPENS Kuetz. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
156. f. 175 (1930).
Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan.
S. TENERA W. Smith. Hustedt, loc. cit., p. 158. f. 182 (1930).-
Transeau:* Coles, Charleston — pond (Nov.).
S. ULNA (Nitz.) Ehr. Hustedt in Rab., Kryptog.-fl. Deutsch. 7(2):
195. f. 691Aa-c (1932).
Synedra lanceolata Kuetz.; Synedra splendens Kuetz.; Synedra
vitrea Kuetz.
Eddy 1934, pp. 387, 392, 393: Champaign, Mahomet— Sanga-
mon River (Mar.-July, Nov., Dec). Transeau, as 5". splendens
and 5. vitrea: Coles, Charleston — small streams (Jan., Mar.,
May, Oct., Dec). Briggs 1872A, p. 44, also as S. splendens;
Thomas & Chase 1887, p. 330, also as S. lanceolata, S. splendens,
and 5. vitrea; Jelliffe 1893, p. 310; Eddy 1927B, pp. 208, 214,
220; Daily 1938, pp. 74, 79: Cook, Chicago— Lake Michigan (all
months). Agersborg 1930, pp. 106, 110, 113: Macon, Decatur —
warm waste-water ditch (Dec-Feb.). Kofoid 1908, p. 59: Mason,
Havana — Illinois River ("pulse in May and Nov."), Eddy, loc.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 47
cit. (1934): Piatt, Monticello — Sangamon River (all months).
Eddy 1931 B, pp. 451, 460: Pulaski, Wetaug — sink-hole ponds
(Apr., July). Bailey 1845, p. 34: St. Clair— Mississippi River.
Purdy 1930, pp. 68, 71: Will, Lockport — DesPlaines River
(May, Oct.).
S. ULNA var. AEQUALis (Kuetz.) Hust. Hustedt, loc. cit., p. 189. f.
691Ad (1932).
Synedra ohtusa W. Smith
Transeau, also as S. ohtusa: Coles, Charleston — ponds and small
streams (Mar., May, Nov.).
S. ULNA var. BICEPS (Kuetz.) Schonf. Hustedt, loc. cit., p. 200. f.
691Ag (1932).
Synedra longissima W. Smith
Jelliffe 1893, p. 310, as S. longissima: Cook, Chicago— Lake
Michigan.
S. ULNA var. DANICA (Kuctz.) Grun. Hustedt, loc. cit., f. 691Af (1932) ;
Mills, Index Diat., pp. 1556, 1559, 1584 (1934).
Synedra danica Kuetz. ; Synedra chaseii Thomas.
Thomas & Chase 1887, p. 330, as S. chaseii and S. danica: Cook,
Chicago — Lake Michigan.
S. ULNA var. SPATHULIFERA Gruu. Hustedt, loc. cit., p. 199. f. 691Ah
(1932); Mills, loc. cit., pp. 1567, 1578, 1586 (1934).
Synedra joursacensis Herib. ; Synedra spathulifera Grun.
Transeau, as S. joursacensis: Coles, Dorans — ditch (May).
Thomas & Chase 1887, p. 330, as S. spathulifera: Cook, Chicago
— Lake Michigan.
Family EUNOTIACEAE
EUNOTIA Ehrenberg, 1837
E. FLEXUOSA (Breb.) Kuetz. Hustedt, loc. cit., p. 312. f. 778 (1932).
Synedra biceps W. Smith
Purdy 1930, pp. 117, 124, as Synedra biceps: Peoria, Chillicothe
— Illinois River (Mar.-Aug.).
E. FORMICA Ehr. Hustedt, loc. cit., p. 308. f. 775 (1932).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
E. LUNARis (Ehr.) Grun. Hustedt, loc. cit., p. 302. f. 769a, b, d, e
(1932).
Transeau: Coles, Charleston — small streams (Dec, Apr.).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
E. MONODON var. major (W. Sm.) Hust. Hustedt, loc. cit., p. 306. f.
772c (1932).
Eunotia major (W. Sm.) Rab.
Thomas & Chase 1887, p. 328, as E. major: Cook, Chicago — Lake
Michigan.
•t
48 A CATALOG OF ILLINOIS ALGAE
E. PECTiNALis var. MINOR (Kuetz.) Rab. Hustedt, loc. cit., p. 298. f.
763d-f (1932).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
Suborder: ACHNANTHINEAE
Family: ACHNANTHACEAE
ACHNANTHES Bory, 1822
A. EXiLis Kuetz. Hustedt in Pascher,Suesswass.-fl. Mitteleur. 10: 198.
f. 278 (1930).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
A. LANCEOLATA (Breb.) Grun. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 234 (1927).
Achnanthidium lanceolatum Breb.
Transeau, as Achnanthidium lanceolatum: Coles, Charleston —
small streams (Mar., May); Mattoon — swamp (Apr.).
A. LANCEOLATA var. ROSTRATA Hust. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10: 208. f. 306b (1930).
Achnanthidium lanceolatum var . dubia Grun.
Transeau, as Achnanthidium I. var. dubia: Coles, Charleston —
small streams (Jan., Mar.).
A. MiCROCEPHALA (Kuetz.) CI. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(SuppL 2): 237 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
A. MiNUTissiMA (Kuetz.) CI. Boyer, loc. cit. (1927); Mills, Index
Diat., p. 964 (1934).
M.icroneis minutissima (Grun.) CI.
Transeau, as Microneis minutissima: Coles, Charleston — pond
(Nov.).
COCCONEIS Ehrenberg, 1835; Grunow, 1868
C. FLEXELLA (Kuetz.) CI. Boyer, loc. cit., p. 248 (1927); Mills, loc.
cit., pp. 75, 420, 669 (1934).
Eucocconeis flexella (Kuetz.) C\.; Achnanthidium flexellum (Breb.)
Kuetz.
Thomas & Chase 1887, p. 328, as Achnanthidium flexellum;
Ahlstrom 1936, p. 292, as Eucocconeis flexella: Cook, Chicago,
Evanston — Lake Michigan.
C. PEDICULUS Ehr. Boyer, loc. cit., p. 244; Mills, loc. cit., pp. 414, 429
(1934).
Cocconeis communis Habirsh.
Transeau: Coles, Charleston — Indian Creek and ponds (Mar.,
May, Nov.); Loxa— ditch (Apr.). Briggs 1872A, p. 43; Thomas
& Chase 1887, p. 328; Ahlstrom 1936, p. 291: Cook, Chicago,
Evanston— Lake Michigan. Kofoid 1903, p. 516; 1908, p. 47,
CLASSIFIED CATALOG OF ILLINOIS ALGAE 49
as C. communis: Mason, Havana — Illinois River (all months);
Topeka — Quiver Creek (Oct., Dec.)-
C. PLACENTULA Ehr. Boyer, loc. cit. (1927).
Transeau: Coles, Charleston — ponds and small streams (Oct.-
Dec, Mar.). Eddy 1927B, pp. 208, 220: Cook, Chicago— Lake
Michigan (May).
C. PLACENTULA var. LiNEATA (Ehr.) CI. Boyer, loc. cit. (1927); Mills,
Index Diat., pp. 425, 432 (1934).
Cocconeis lineata Ehr.
Thomas & Chase 1887, p. 328, as C. lineata Kuetz.(?): Cook,
Chicago — Lake Michigan.
RHOICOSPHENIA Grunow, 1860
R. CURVATA (Kuetz.) Grun. Boyer, loc. cit., p. 240 (1927).
Gomphonema curvatum Kuetz.
Transeau: Coles, Charleston — small streams (Mar., May, Dec).
Briggs 1872A, p. 44, asGomphonema curvatum ; Thomas & Chase
1887, p. 330: Cook, Chicago — Lake Michigan.
Suborder: NAVICULINEAE
Family: NAVICULACEAE
AMPHIPLEURA Kuetzing, 1844
A. PELLUCIDA (Ehr.?) Kuetz. Boyer, loc. cit., p. 303 (1927).
Transeau: Coles, Charleston — pond (Oct.). Briggs 1872A, p. 42;
Thomas & Chase 1887, p. 328: Cook, Chicago — L^ke Michigan.
AMPHIPRORA Ehrenberg, 1843; Cleve, 1891
A. CALUMETICA Thomas. Boyer, loc. cit., p. 486 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
A. ORNATA Bailey. Boyer, loc. cit., p. 484 (1927).
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 42;
Thomas & Chase 1887, p. 328; Eddy 1927B, pp. 215, 220; Daily
1938, p. 79: Cook, Chicago, Evanston — Lake Michigan (July).
ANOMOEONEIS Pfitzer, 1871
A. EXiLis (Kuetz.) CI. Boyer, loc. cit., p. 326 (1927).
Navicula exilis Kuetz.
Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329, as Navicula
exilis: Cook, Chicago — Lake Michigan.
A. FOLLis (Ehr.) CI. Boyer, loc. cit., p. 325 (1927); Mills, Index Diat.,
pp. 196, 1171 (1934).
Navicula trochus Ehr.
Thomas & Chase 1887, p. 330, as Navicula trochus: Cook, Chi-
cago— Lake Michigan.
50 A CATALOG OF ILLINOIS ALGAE
A. SERIANS (Breb.) CI. Boyer, loc. ciL, p. 325 (1927).
Navicula serians Breb.
Thomas & Chase 1887, p. 330, as Navicula serians: Cook, Chi-
cago— Lake Michigan.
CALONEIS Cleve, 1891
C. ALPESTRis (Grun.) CI. Hustedt in Pascher, Suesswass.-fl. Mit-
teleur. 10: 240 f. 372 (1930).
Ahlstrom 1936, p. 291: Cook, Evanston — Lake Michigan.
C. BACiLLARis (Greg.) CI. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 309 (1927).
Navicula hacillaris Greg.
Thomas & Chase 1887, p. 329, as Navicula hacillaris: Cook,
Chicago — Lake Michigan.
C. BACILLUM CI. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10: 236.
f. 360 (1930); Mills, Index Diat., p. 317 (1934).
Ahlstrom 1936, p. 291: Cook, Evanston — Lake Michigan.
C. FASCIATA (Lagerst.) CI. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 309 (1927); Mills, Index Diat., pp. 320, 1076 (1934).
Navicula lacunarum Grun.
Thomas & Chase 1887, p. 329, as Navicula lacunarum: Cook,
Chicago- — Lake Michigan.
C. SILICULA (Ehr.) CI. Boyer, loc. cit., p. 308 (1927).
Navicula limosa Kuetz.
Thomas & Chase 1887, p. 329, as Navicula limosa; Ahlstrom
1936, p. 291: Cook, Chicago, Evanston — Lake Michigan.
C. SILICULA var. alpina CI. Hustedt in Pascher, Suesswass.-fl. Mit-
teleur. 10: 238. f. 366 (1930).
Transeau: Coles, Charleston — pond (Apr.).
C. SILICULA var. genuina CI. Mills, Index Diat., p. 328 (1934).
Transeau: Coles, Charleston — ponds and small streams (Apr.,
May, Oct.).
C. SILICULA var. gibberula (Kuetz.) CI. Boyer, Proc. Acad. Nat. Sci.
Phila. 79(Suppl. 2): 308 (1927).
Navicula silicula var. gibberula (Kuetz.) Grun.
Thomas & Chase 1887, p. 329, as Navicula s. var. gibberula:
Cook, Chicago — Lake Michigan.
C. SILICULA var. inflata (Grun.) CI. Boyer, loc. cit. (1927); Mills,
Index Diat., pp. 328, 1084 (1934).
Navicula limosa var. subinfiata Grun.
Thomas & Chase 1887, p. 329, as Navicula I. var. subinfiata:
Cook, Chicago — Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 51
C. siLicuLA var. undulata (Grun.) CI. Mills, loc. cit., pp. 329, 1084
(1934).
Navicula limosa var. undulata Grun.
Thomas & Chase 1887, p. 329, as Navicula I. var. undulata:
Cook, Chicago— Lake Michigan.
C. TRiNODis (Lew.) Meist. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(SuppL 2): 309 (1927).
Navicula trinodis Lewis
Transeau: Coles, Charleston— pond (Apr.). Thomas & Chase
1887, p. 330, as Navicula trinodis: Cook, Chicago — Lake Michi-
gan.
DIPLONEIS Ehrenberg, 1844
D. ELLiPTiCA (Kuetz.) CI. Boyer, loc. cit., p. 355 (1927).
Navicula elliptica Kuetz.
Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329, as Navicula
elliptica: Cook, Chicago — Lake Michigan,
D. PUELLA (Schum.) CI. Boyer, loc. cit. (1927).
Navicula elliptica var. minutissima V. H.
Thomas & Chase 1887, p. 329, as Navicula e. var. minutissima:
Cook, Chicago— Lake Michigan.
FRUSTULIA Agardh, 1824; Grunow, 1865
F. RHOMBOiDEs (Ehr.) DeToni. Boyer, loc. cit., p. 301 (1927).
Navicula rhomboides Ehr.; Vanheurckia rhomboides (Ehr.) Breb.
Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329, as Navicula
rhomboides: Cook, Chicago^ — Lake Michigan. Agersborg 1930,
p. 106, as Vanheurckia rhomboides: Macon, Decatur — warm
waste-water ditch (Dec.-Feb.).
F. viRiDULA (Breb.) DeToni. Boyer, loc. cit. (1927).
Schizonema viridulum Breb.
Thomas & Chase 1887, p. 330, as Schizonema viridulum: Cook,
Chicago — Lake Michigan.
F. VULGARIS (Thw.) DeToni. Boyer, loc. cit., p. 302 (1927); Mills,
Index Diat., pp. 760, 1437 (1934).
Schizonema vulgare Thw.
Transeau: Clark — Whetstone Creek (Oct.). Coles, Charleston —
small streams (Jan., Mar., Oct.). Thomas & Chase 1887, p. 330,
as Schizonema vulgare: Cook, Chicago — Lake Michigan.
\
52 A CATALOG OF ILLINOIS ALGAE
GYROSIGMA Hassall, 1845; Cleve, 1894
G. ACUMINATUM (Kuetz.) CI. Boyer, loc. ciL, p. 456 (1927); Mills, loc.
ciL, p. 1149 (1934).
Navicula sigma Ehr.
Eddy 1934, p. 387: Champaign, Mahomet — Sangamon River
(July-Dec). Eddy 1927B, pp. 215, 220; Ahlstrom 1936, p. 292:
Cook, Chicago, Evanston — Lake Michigan. Bailey 1845, p. 34,
as Navicula sigma: St. Clair- — Mississippi River.
G. ATTENUATUM (Kuetz.) CI. Boyer, loc. cit., p. 455 (1927).
Pleuro sigma attenuatum W. Smith
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 44;
Thomas & Chase 1887, p. 330, as Pleurosigma attenuatum: Cook,
Chicago — Lake Michigan. Agersborg 1930, pp. 106, 110, as
Pleurosigma attenuatum: Macon, Decatur — warm waste-water
ditch (Dec.-Feb.).
G. EXIMIUM (Thw.) Boy. Boyer, loc. cit., p. 462 (1927); Mills, Index
Diat., pp. 828, 1332 (1934).
Pleurosigma eximium V. H.
Thomas & Chase 1887, p. 330, as Pleurosigma eximium: Cook,
Chicago — Lake Michigan.
G. KUETZiNGii (Grun.) CI. Boyer, loc. cit., p. 461 (1927).
Pleurosigma kuetzingii Grun.
Thomas & Chase 1887, p. 330, as Pleurosigma kuetzingii: Cook,
Chicago — Lake Michigan.
G. SCALPROIDES (Rab.) CI. Boyer, loc. cit., p. 460 (1927).
Transeau : Clark — Whetstone Creek (Oct.). Coles Charleston —
small stream and ditch (Apr., Oct.). Lawrence, Pinkstaff — pond
(Nov.).
G. SPENCERII (Quek.) CI. Boyer, loc. cit., p. 459 (1927).
Pleurosigma spencerii (Quek.) W. Smith
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 44;
Thomas & Chase 1887, p. 330; Jelliffe 1893, p. 310, as Pleuro-
sigma spencerii: Cook, Chicago — Lake Michigan. Galtsofif 1924,
p. 405, as Pleurosigma spencerii: Mercer, New Boston— Missis-
sippi River, Sturgeon Bay (July).
G. woRMLEYi (Sulliv.) Boy. Boyer, loc. cit., p. 460 (1927).
Pleurosigma wormleyi Sulliv.
Thomas & Chase 1887, p. 330, as Pleurosigma wormleyi: Cook,
Chicago — Lake Michigan.
MASTOGLOIA Thwaites, 1856
M. SMiTHii Thw. Boyer, loc. cit., p. 332 (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago— Lake Michi-
gan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 53
M. SMiTHii var. amphicephala Grun. Boyer, loc. cit. (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago — Lake Michigan.
M. SMITHII var. lacustris Grun. Boyer, loc. cit. (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago— Lake Michigan.
NAVICULA Bory, 1822; Cleve, 1894
N. AMBiGUA Ehr. Mills, Index Diat., p. 974 (1934).
Navicula ambigua f. craticularis
Transeau: Coles, Charleston — small streams (May, Oct.).
Thomas & Chase 1887, p. 329, also as N. a. f. craticularis: Cook,
Chicago — Lake Michigan.
N. ANGLICA Ralfs. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2):
384 (1927).
Navicula tumida W. Smith
Briggs 1872A, p. 44, as N. tumida: Thomas & Chase 1887, p. 329:
Cook, Chicago— Lake Michigan.
N. BACILLUM Ehr. Boyer, loc. cit., p. 371 (1927).
Ahlstrom 1936, p. 292: Cook, Evanston— Lake Michigan.
N. CONFERVACEA (Kuetz.) Grun. Boyer, loc. cit., p. 370 (1927).
Galtsoff 1924, p. 399: Hancock, Henderson — Mississippi River
(July).
N. CRYPTOCEPHALA Kuetz. Boyer, loc. cit., p. 383 (1927).
Baker 1922, p. 80: Champaign, Urbana — Boneyard Creek.
Transeau: Coles, Ashmore — pond (Nov.); Charleston — pond
and small streams (Jan.-May, Nov.); Embarrass — small stream
(Mar.); Wrightsville — in a spring (Apr.). Briggs 1872A, p. 44;
Thomas & Chase 1887, p. 329; Ahlstrom 1936, p. 292: Cook,
Chicago, Evanston — Lake Michigan. Transeau: Lawrence,
Pinkstaff — (Nov.).
N. CUSPIDATA Kuetz. Boyer, loc. cit. (1927).
Transeau : Coles, Charleston — ponds, ditches and small streams
(Mar .-May, Nov.). Thomas & Chase 1887, p. 329: Cook, Chi-
cago— Lake Michigan.
N. DiCEPHALA (Ehr.) W. Smith. Boyer, loc cit., p. 386 (1927).
Thomas «& Chase 1887, p. 329: Cook, Chicago— Lake Michigan.
N. DICEPHALA var. ELGiNENSis (Greg.) CI. Hustedt in Pascher,
Suesswass.-fl. Mitteleur. 10: 303 (1930).
Transeau: Coles, Loxa — ditch (Apr.).
N. EXIGUA (Greg.) Muell. Hustedt, loc. cit., p. 305. f. 538 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
M. GASTRUM Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) :
389 (1927).
Navicula varians Greg.
Thomas & Chase 1887, p. 330, as N. varians; Ahlstrom 1937,
p. 292: Cook, Chicago, Evanston — Lake Michigan.
54 A CATALOG OF ILLINOIS ALGAE
N. GRACILIS Ehr. Boyer, loc. cit., p. 385 (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago — Lake Michigan.
Agersborg 1930, pp. 108-110, 113: Macon, Decatur — warm
waste-water ditch (Dec.-Feb.).
M. MUTICA Kuetz. Boyer, loc. cit., p. 369 (1927),
Thomas & Chase 1887, p. 329: Cook, Chicago— LakeMichigan.
N. OBLONGA Kuetz. Boyer, loc. cit., p. 395 (1927).
Thomas & Chase 1887, p. 329; Ahlstrom 1936, p. 292: Cook,
Chicago, Evanston — Lake Michigan.
N. OBLONGA var. SUBCAPITATA Pant. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10: 308. f. 551 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston— Lake Michigan.
N. PLATYSTOMA Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) :
400 (1927).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
N. PROTRACTA (Grun.) CI. Hustedt in Pascher, Suesswass.-fl. Mit-
teleur. 10: 284. f. 472 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
N. PUPULA Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) :
369 (1927).
Thomas & Chase 1887, p. 329; Ahlstrom 1936, p. 292: Cook,
Chicago, Evanston — Lake Michigan.
N. RADiosA Kuetz. Boyer, loc. cit., p. 397 (1927).
Pinnularia radiosa W. Smith
Transeau: Coles, Charleston— ponds (Oct., Nov.). Briggs 1872A,
p. 44, as Pinnularia radiosa; Thomas & Chase 1887, p. 329;
JeUiffe 1893, p. 310: Cook, Chicago— Lake Michigan.
N. RADIOSA var. tenella (Breb.) Grun. Hustedt in Pascher, Suess-
wass.-fl. Mitteleur. 10:299 (1930); Mills, Index Diat., pp. 1133, 1167
(1934).
Navicula tenella Breb.
Thomas & Chase 1887, p. 330, as N. tenella: Cook, Chicago —
Lake Michigan.
N. REiNHARDTii (Grun.) V. H. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 393 (1927).
Thomas & Chase 1887, p. 329; Ahlstrom 1936, p. 292: Cook,
Chicago, Evanston — Lake Michigan.
N. RHYNCOCEPHALA Kuetz. Boyer, loc. cit., p. 387 (1927).
Transeau: Coles, Charleston — small stream (Oct.). Jelliffe 1893,
p. 310: Cook, Chicago — Lake Michigan. Agersborg 1930, p. 106:
Macon, Decatur — warm waste-water ditch (Dec.-Feb.).
N. SALINARUM Grun. Boyer, loc. cit., p. 383 (1927).
Baker 1922, pp. 82-84, 86, 87: Champaign, Urbana— Salt Fork
and Spoon River.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 55
N. SALINARUM var. INTERMEDIA (Grun.) CI. Mills, Index Diat., p.
1141 (1934).
Transeau: Coles, Charleston — small stream (Oct.).
N. SCUTELLOIDES W. Smith. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 409 (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago— Lake Michigan.
N. SEMINULUM Grun. Boyer, loc. cit., p. 368 (1927); Mills, Index
Diat., pp. 1142, 1147 (1934).
Navicula saugerri Desmaz.
Thomas & Chase 1887, p. 329, as N. saugerri: Cook, Chicago —
Lake Michigan.
N. TUSCULA (Ehr.) Grun. Boyer, loc. cit., p. 385 (1927).
Navicula punctata Donk.
Thomas & Chase 1887, p. 329, 330, also as N. punctata: Cook,
Chicago — Lake Michigan.
N. VIRIDULA Kuetz. Boyer, loc. cit., p. 388 (1927).
Thomas & Chase 1887, p. 330; Ahlstrom 1936, p. 292: Cook,
Chicago, Evanston — Lake Michigan.
NEIDIUM Pfitzer, 1871
N. AMPHiGOMPHUS (Ehr.) Pfitz. Boyer, loc. cit., p. 322 (1927).
Navicula iridis var. amphigomphus (Ehr.) V. H.
Thomas & Chase 1887, p. 329, as Navicula i. var. amphigomphus:
Cook, Chicago — Lake Michigan.
N. AMPHIRHYNCUS (Ehr.) Pfitz. Boyer, loc. cit., p. 321 (1927).
Navicula amphirhyncus Ehr.; Navicula iridis var. amphirhyncus
(Ehr.) V. H.
Thomas & Chase 1887, p. 329, as Navicula i. var. amphirhyncus:
Cook, Chicago — Lake Michigan. Bailey 1845, p. 34, as Navicula
amphirhyncus: St. Clair — Mississippi River.
N. DUBIUM (Ehr.) Pfitz. Boyer, loc. cit., p. 322 (1927).
Navicula duhia Ehr.
Thomas & Chase 1887, p. 329, as Navicula dubia: Cook, Chicago
— Lake Michigan.
N. HiTCHCOCKii (Ehr.) CI. Boyer, loc. cit. (1927).
Navicula hitchcockii Ehr.
Thomas & Chase 1887, p. 329, as Navicula hitchcockii: Cook,
Chicago — Lake Michigan.
N. iRiDis (Ehr.) Pfitz. Boyer, loc. cit., p. 321 (1927).
Navicula iridis Ehr.
Thomas & Chase 1887, p. 329, as Navicula iridis: Ahlstrom 1936,
p. 292: Cook, Chicago, Evanston — Lake Michigan. Kofoid 1908,
p. 57, as Navicula iridis: Mason, Havana — Illinois River ("colder
■™"*^"'- X^CNilC^
56 A CATALOG OF ILLINOIS ALGAE
N. iRiDis var. firma (Kuetz.) V. H. Mills, Index Diat., pp. 1070,
1189 (1934).
Navicula iridis var. firma (Grun.) Kuetz.
Thomas & Chase 1887, p. 329, as Navicula i. var. firma: Cook,
Chicago — Lake Michigan.
N. PRODUCTUM (W. Sm.) Pfitz. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 321 (1927); Mills, loc. cit., pp. 1070, 1190 (1934).
Navicula iridis var. affinis (Ehr.) V. H.; Navicula iridis var. pro-
ducta (W. Sm.) V. H.
Thomas & Chase 1887, p. 329, as Navicula i. var. afflnis and N. i.
var. producta: Cook, Chicago — Lake Michigan.
PINNULARIA Ehrenberg, 1840
P. APPENDicuLATA (Ag.) C. Boyer, loc. cit., p. 432 (1927).
Navicula appendiculata Kuetz.
Thomas & Chase 1887, p. 329, as Navicula appendiculata: Cook,
Chicago — Lake Michigan.
P. BRAUNii (Grun.) CI. Boyer, loc. cit., p. 433 (1927).
Transeau: Cumberland, Greenup — ditch (Nov.).
P. BREBissoNii (Kuetz.) Rab. Boyer, loc. cit., p. 435 (1927).
Navicula hrehissonii Kuetz.
Transeau: Coles, Charleston — small streams (Jan., Apr.).
Thomas and Chase 1887, p. 329, as Navicula hrehissonii: Cook,
Chicago — Lake Michigan.
P. BREVicosTATA var. LEPTOSTAURON CI. Mills, Index Diat., p. 1274
(1927).
Transeau: Coles, Charleston — pond (Apr.).
P. CARDiNALis (Ehr.) W. Smith. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10:337. f. 621 (1930) ; Mills, /oc. a/., pp. 1002, 1275(1934).
Navicula cardinalis Ehr.
Thomas & Chase 1887, p. 329, as Navicula cardinalis: Cook,
Chicago — Lake Michigan.
P. DIVERGENS W. Smith. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 435 (1927); Mills, loc. cit., pp. 1029, 1279 (1934).
Navicula divergens Ralfs
Thomas & Chase 1887, p. 329, as Navicula divergens: Cook, Chi-
cago— Lake Michigan.
P. GiBBA (V. H.) Boy. Boyer, loc. cit., p. 440 (1927).
Navicula gihha Kuetz.
Transeau: Coles, Charleston — pond (Apr.). Thomas & Chase
1887, p. 329, as Navicula gihha: Cook, Chicago— Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 57
P. GLOBiCEPS Greg. Boyer, loc. cit., p. 434 (1927); Mills, Index Diat.,
pp. 1052, 1284 (1934).
Navicula globiceps Greg.
Thomas & Chase 1887, p. 329, as Navicula globiceps: Cook,
Chicago — Lake Michigan.
P. HEMIPTERA (Kuetz.) W. Smith. Boyer, loc. cit., p. 442 (1927);
Mills, loc. cit., pp. 1059, 1285 (1934).
Navicula hemiptera Kuetz.
Briggs 1872A, p. 44; Thomas & Chase 1887, p. 329, as Navicula
hemiptera: Cook, Chicago — Lake Michigan.
P. INTERRUPTA f. BICAPITATA (Lag.) Fritsch. Mills, loc. cit., p. 1287
(1934).
Navicula hicapitata Lag.
Thomas & Chase 1887, p. 329, as Navicula hicapitata: Cook,
Chicago — Lake Michigan.
P. MAJOR (Kuetz.) W. Smith. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 446 (1927).
Navicula major Kuetz.
Thomas & Chase 1887, p. 329, as Navicula major; Ahlstrom 1936,
p. 292: Cook, Chicago, Evanston — Lake Michigan.
P. MAJOR var. TRANVERSA (A. Schm.) CI. Boyer, loc. cit. (1927).
Transeau: Coles, Charleston — pond (Nov.).
P. MESOLEPTA (Ehr.) W. Smith. Boyer, loc. cit., p. 433 (1927).
Navicula mesolepta Ehr.
Thomas & Chase 1887, p. 329, as Navicula mesolepta: Cook,
Chicago — Lake Michigan.
P. NOBiLis Ehr. Boyer, loc. cit., p. 445 (1927).
Navicula nobilis (Ehr.) Kuetz.
Thomas & Chase 1887, p. 329, as Navicula nobilis: Cook, Chicago
— Lake Michigan.
P. PARVA Greg. Boyer, loc. cit., p. 443 (1927); Mills, Index Diat., pp.
1115, 1298 (1934).
Navicula parva Ralfs.
Thomas & Chase 1887, p. 329, as Navicula parva: Cook, Chicago
— Lake Michigan.
P. TABELLARIA Ehr. Boyer, loc. cit., p. 438 (1927); Mills, loc. cit., pp.
1167, 1307 (1934).
Navicula tabellaria Ehr.
Thomas & Chase 1887, p. 330, as Navicula tabellaria: Cook,
Chicago — Lake Michigan.
P. TERMEs Ehr. Boyer, loc. cit., p. 433 (1927).
Navicula termes Ehr.
Thomas & Chase 1887, p. 330, as Navicula termes: Cook, Chicago
— Lake Michigan.
58 A CATALOG OF ILLINOIS ALGAE
P. viRiDis (Nitz.) Ehr. Boyer, loc. cit., p. 446 (1927).
Navicula viridis Kuetz.
Thomas & Chase 1887, p. 330, as Navicula viridis: Cook, Chicago
— Lake Michigan. Agersborg 1930, p. 106, as Navicula viridis:
Macon, Decatur^ — warm waste-water ditch (Dec.-Feb.).
P. VIRIDIS var. ELLIPTICA Meist. Mills, Index Diat., p. 1310 (1934).
Transeau: Coles, Charleston — ponds and small streams (Mar.,
Apr.); Loxa^ — ditch (Apr.); Wrightsville — in a spring (Apr.).
Lawrence, Pinkstaff — pond (Nov.).
PLEUROSIGMA W. Smith, 1852; Cleve, 1894
P. ANGULATUM (Quek.) W. Smith. Boyer, Proc. Acad. Nat. Sci.
Phila. 79 (Suppl. 2): 471 (1927).
Kofoid 1903, p. 516: Mason, Topeka — Quiver Creek (Jan., Apr.,
Sept., Oct.).
STAURONEIS Ehrenberg, 1843
S. ACUTA W. Smith. Boyer, loc. cit., p. 425 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. ANCEPS Ehr. Boyer, loc. cit., p. 422 (1927).
Transeau: Coles, Embarrass — small stream (Mar.); Mattoon
—swamp (Apr.). Thomas & Chase 1887, p. 330; Ahlstrom 1936,
p. 292: Cook, Chicago, Evanston— Lake Michigan. Agersborg
1930, pp. 108-110, 113: Macon, Decatur — warm waste-water
ditch (Dec.-Feb.).
S. ANCEPS var. birostris (Ehr.) CI. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10: 256 (1930).
Transeau: Coles, Charleston^ — creek (Mar.).
S. ANCEPS var. linearis (Grun.) V. H. Boyer, Proc. Acad. Nat. Sci.
Phila. 79 (Suppl. 2): 422 (1927); Mills, Index Diat., pp. 1454, 1462
(1934).
Stauroneis linearis Ehr.
Thomas & Chase 1887, p. 330, as S. linearis: Cook, Chicago —
Lake Michigan.
S. gracilis Ehr. Boyer, loc. cit. (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. phoenicentron (Nitz.) Ehr. Boyer, loc. cit., p. 421 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. phoenicentron var. amphilepta (Ehr.) CI. Mills, Index Diat., p.
1466 (1934).
Transeau: Coles, Charleston — creek (Mar.); Loxa — ditch (Apr.).
S. PHYLLODES Ehr. Mills, loc. cit., p. 1467 (1934).
Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan.
S. PRODUCTA Grun. Mills, loc. cit. (1934).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 59
Family: GOMPHONEMATACEAE
GOMPHONEIS Cleve, 1894
G. HERCULEANA (Ehr.) CI. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 299 (1927).
Gomphonema eriense Grun. ; Gomphonema herculeanum Ehr.
Thomas & Chase 1887, p. 329, as Gomphonema eriense and
Gomphonema herculeanum: Cook, Chicago — ^Lake Michigan.
G. HERCULEANA var. ROBUSTA (Grun.) CI. Mills, Index Diat., pp.
789, 800 (1934).
Gomphonema rohustum Grun.
Thomas & Chase 1887, p. 329, as Gomphonema rohustum: Cook,
Chicago — Lake Michigan.
GOMPHONEMA Agardh, 1824
G. ACUMINATUM Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl,
2): 290 (1927).
Transeau 1916, p. 124: Coles, Charleston — ponds and small
streams (Mar., Oct., Dec). Thomas & Chase 1887, p. 328; Eddy
1927B, pp. 208, 220: Cook, Chicago— Lake Michigan (Apr.,
May, Sept.-Nov.). Transeau: Cumberland, Greenup — ditch
(Nov.). Agersborg 1930, p. 106: Macon, Decatur — warm waste-
water ditch (Dec.-Feb.).
G. ACUMINATUM var. CORONATUM (Ehr.) Rab. Boyer, loc. cit., p. 291
(1927).
Gomphonema coronatum Ehr.
Thomas & Chase 1887, p. 329, as G. coronatum: Cook, Chicago —
Lake Michigan.
G. ACUMINATUM var. ELONGATUM (W. Sm.) V. H. Boyer, loc. cit.
(1927).
Gomphonema acumiftatum var. intermedia Grun.
Thomas & Chase 1887, p. 328, as G. a. var. intermedia: Cook,
Chicago — Lake Michigan.
G. ACUMINATUM var. LATICEPS (Ehr.) A. Schmidt. Mills, Index Diat.,
p. 774 (1934).
Gomphonema laticeps Ehr.
Thomas & Chase 1887, p. 329, as G. laticeps: Cook, Chicago —
Lake Michigan.
G. ACUMINATUM var. TRIGONOCEPHALUM (Ehr.) CI. Boyer, Proc
Acad. Nat. Sci. Phila 79 (Suppl. 2): 291 (1927).
Gomphonema trigonocephalum Ehr.
Thomas & Chase 1887, p. 329, as G. trigonocephalum: Cook,
Chicago — Lake Michigan.
60 A CATALOG OF ILLINOIS ALGAE
G. ACUMINATUM var. TURRis (Ehr.) CI. Boyer, loc. cit. (1927).
Gomphonema turris Ehr.
Thomas & Chase 1887, p. 329, as G. turris: Cook, Chicago — Lake
Michigan.
G. ANGUSTATUM (Kuetz.) Grun. Boyer, loc. cit., p. 294 (1927).
Transeau 1916, p. 775: Clark, Whetstone Creek (Oct.). Coles,
Ashmore, Charleston, Dorans, Embarrass, Loxa — ponds, Indian
Creek and other small streams and ditches (Nov.-May); Mat-
toon — swamp (Apr.). Cumberland, Greenup — ditch (Nov.).
Lawrence, Pinkstaff — pond (Nov.).
G. ANGUSTATUM var. OBTUSATUM (Kuetz.) V. H. Boyer, loc. cit., p.
295 (1927).
Transeau: Coles, Charleston — small streams (Jan., Mar.).
G. CONSTRICTUM Ehr. Boyer, loc. cit., p. 292 (1927).
Transeau: Clark — Whetstone Creek (Oct.). Coles, Charleston —
small stream (Oct.). Cumberland, Greenup — ditch (Nov.).
Kofoid 1903, p. 516; 1908, p. 52: Mason, Havana— Illinois River
("irregular — most abundant in May and Nov."); Topeka —
Quiver Creek (Apr., Nov.).
G. CONSTRICTUM var, CAPITATUM (Ehr.) Grun. Hustedt in Pascher,
Suesswass.-fl. Mitteleur. 10: 377. f. 715 (1930); Mills, Index Diat.
pp. 779, 881 (1934).
Gomphonema capitatum Ehr.
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 329, as G. capi-
tatum: Cook, Chicago — Lake Michigan.
G. CONSTRICTUM var. CAPITATUM f. TURGIDUM (Ehr.) A. Mayer. Mills,
loc. cit., pp. 781, 805 (1934).
Gomphonema turgidum Ehr.
Thomas & Chase 1887, p. 329, as G. turgidum: Cook, Chicago —
Lake Michigan.
G. GEMINATUM (Lyngb.) Ag. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 289 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 329: Cook, Chi-
cago— Lake Michigan,
G. GRACILE var. DICHOTOMA (Kuetz.) Grun. Mills, Index Diat., pp.
783, 787 (1934).
Gomphonema dichotomum W. Smith
Briggs 1872 A, p. 44; Thomas & Chase 1887, p. 329, as G. dichoto-
mum: Cook, Chicago — Lake Michigan.
G. INTRICATUM Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila 79 (Suppl.
2): 295 (1927).
Transeau: Coles, Charleston- — small streams (Dec, Mar.).
Thomas & Chase 1887, p. 329: Cook, Chicago — Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 61
G. INTRICATUM var. VIBRIO (Ehr.) CI. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10: 376. f. 698 (1930); Mills, Index Diat., pp. 790, 806
(1934).
Gomphonema vibrio Ehr.
Thomas & Chase 1887, p. 329, as G. vibrio: Cook, Chicago — Lake
Michigan.
G. MONTANUM var. SUBCLAVATUM Grun. Boyer, Proc. Acad. Nat. Sci.
Phila. 79(SuppI. 2): 290 (1927).
Gomphonema subclavatum Grun.
Transeau, as G. subclavatum: Clark — Whetstone Creek (Oct.).
G. OLIVACEUM (Lyngb.) Kuetz. Boyer, loc. cit., p. 296 (1927).
Eddy 1927A, p. 131: Champaign, Urbana— drainage ditch ("fall
and winter"). Transeau: Coles, Charleston — pond and small
streams (Mar., May). Briggs 1872A, p. 44; Thomas & Chase
1887, p. 329; Ahlstrom 1936, p. 292: Cook, Chicago, Evanston—
Lake Michigan. Transeau: Cumberland, Greenup— ditch (Nov.).
G. OLIVACEUM var. calcarea CI. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 379. f. 721 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
G. PARVULUM (Kuetz.) Grun. Boyer, Proc. Acad. Nat. Sci. Phila, 79
(Suppl. 2): 294 (1927).
Transeau: Coles, Charleston — small stream (Oct.).
G. SEMIAPTERUM Grun. Boyer, loc. cit., p. 291 (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago — Lake Michigan.
G. SPHAEROPHORUM Ehr. Boyer, loc. cit., p. 292 (1927).
Transeau: Coles, Charleston — pond (Apr.). Thomas & Chase
1887, p. 329: Cook, Chicago— Lake Michigan.
Family: CYMBELLACEAE
AMPHORA Ehrenberg, 1840
A. NORMANi Rab. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
343. f. 630 (1930).
Transeau: Coles, Charleston^ — small stream (May).
A. ovALis Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) :
254 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; Daily 1938,
p. 79: Cook, Chicago, Evanston — Lake Michigan.
CYMBELLA Agardh, 1830
C. AEQUALis W. Smith. Boyer, loc. cit., p. 276 (1927).
Transeau: Coles, Charleston — creek (Mar.).
C. AFFiNis Kuetz. Boyer, loc. cit. (1927).
Transeau: Clark — Whetstone Creek (Oct.). Coles — Indian Creek
and draintile (Mar., May, Nov.).
62 A CATALOG OF ILLINOIS ALGAE
C. AMPHICEPHALA Naeg. Boyer, loc. cit., p. 275 (1927).
Transeau: Coles, Charleston — small stream (Oct.)-
C. ASPERA (Ehr.) CI. Boyer, loc. cit., p. 278 (1927).
Cymhella gastroides Kuetz.
Transeau, as C. gastroides: Coles, Charleston — ponds, ditches
and small streams (Mar.-May, Nov.). Thomas & Chase 1887,
p. 328, as C. gastroides: Cook, Chicago — Lake Michigan.
C. CISTULA var. maculata (Kuetz.) Grun. Boyer, loc. cit., p. 280
(1927); Mills, Index Diat., pp. 548, 560 (1934).
Cymhella maculata Kuetz.
Thomas & Chase 1887, p. 328, as C. maculata: Cook, Chicago-
Lake Michigan.
C. cusPiDATA Kuetz. Boyer, loc. cit., p. 275 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; Ahlstrom
1936, p. 291: Cook, Chicago, Evanston — Lake Michigan. Agers-
borg 1930, pp. 106, 113: Macon, Decatur — warm waste-water
ditch (Dec.-Feb.).
C. CYMBiFORMis (Kuctz.) Breb. Boyer, loc. cit., p. 279 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
C. EHRENBERGii Kuetz. Boycr, loc. cit., p. 275 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
C. GRACILIS (Rab.) CI. Boyer, loc. cit., p. 284 (1927).
Transeau: Clark — Whetstone Creek (Oct.).
C. LACUSTRis (Ag.) CI. Boyer, loc. cit. (1927).
Colletonema lacustre V. H.
Transeau: Coles — Indian Creek (Nov.). Thomas & Chase 1887,
p. 328, as Colletonema lacustre: Cook, Chicago — Lake Michigan.
C. LAEVis Naeg. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10: 353.
f. 643 (1934).
Ahlstrom 1936, p. 291: Cook, Evanston — Lake Michigan.
C. LANCEOLATA (Ehr.) V. H. Hustcdt, loc. cit., p. 364. f. 679 (1930).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
C. LEPTOCEROS (Ehr.?) Grun. Hustedt, loc. cit., p. 358 (1930).
Thomas & Chase 1887, p. 328, as C. leptoceros K. : Cook, Chicago
— Lake Michigan.
C. NAVicuLiFORMis Aucrsw. Boycr, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 281 (1927).
Cymhella anglica Lagerst.
Thomas & Chase 1887, p. 328, also as C. anglica; Ahlstrom 1936,
p. 291 : Cook, Chicago, Evanston — Lake Michigan.
C. PARVA (W. Sm.) CI. Boyer, loc. cit. (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 63
q. PROSTRATA (Berk.) CI. Boyer, loc. cit., p. 285 (1927); Mills, Index
Diat., p. 564 (1934).
Encyonema prostratum Ralfs
Thomas & Chase 1887, p. 328; Eddy 1927B, pp. 208, 221, as
Encyonema prostratum: Cook, Chicago — Lake Michigan (Oct.,
Nov.). Kofoid 1908, p. 50, as Encyonema prostratum: Mason,
Havana — Illinois River.
C. TRIANGULUM (Ehr.) CI. Boyer, loc. cit., p. 284 (1927).
Cymhella rotundata Chase; Encyonema triangulum Kuetz.
Transeau: Coles, Charleston — Indian Creek and other small
streams (Mar.-May, Oct., Nov.) ; Dorans — ditch (May). Thomas
& Chase 1887, p. 328, as C. rotundata and Encyonema triangulum:
Cook, Chicago^ — Lake Michigan.
C. TUMiDA (Breb.) V. H. Boyer, loc. cit., p. 280 (1927); Mills, Index
Diat., pp. 443, 568 (1934).
Cymhella stromatophora Grun.; Cocconema cymbiforme Rab.
Transeau, as Cocconema cymbiforme: Coles, Charleston — pond
(Apr.). Briggs 1872 A, p. 43, as Cocconema cymbiforme ; Thomas &
Chase 1887, p. 328, as C. stromatophora: Cook, Chicago — Lake
Michigan.
C. TURGIDA Greg. Boyer, loc. cit., p. 283 (1927).
Transeau: Clark — Whetstone Creek (Oct.).
C. VENTRicosA Kuetz. Boyer, loc. cit., p. 285 (1927),
Encyonema caespitosum Kuetz. ; E. ventricosum Kuetz.
Transeau: Coles, Charleston — Indian Creek and other small
streams and ponds (Oct., Nov.). Briggs 1872A, p. 43, also as
Encyonema caespitosum; Thomas & Chase 1887, p. 328, as En-
cyonema caespitosum and Encyonema ventricosum; Jelliffe 1893,
p. 310, as Encyonema ventricosum: Cook, Chicago — Lake Michi-
gan.
EPITHEMIA Brebisson, 1838
E. ARGUS (Ehr.) Kuetz. Boyer, loc. cit., p. 489 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
E. ARGUS van alpestris (W. Sm.) Grun. Hustedt in Pascher,
Suesswass.-fl. Mitteleur. 10: 383. f. 727b (1930).
Epithemia alpestris W. Smith; Epithemia argus var. amphicephala
Grun.
Briggs 1872A, p. 43, as E. alpestris; Thomas & Chase 1887, p.
328, as E. argus var. amphicephala: Cook, Chicago — Lake Michi-
gan.
E. muelleri Fricke. Hustedt, loc. cit., p. 384. f. 728 (1930).
Ahlstrom 1936, p. 291: Cook, Evanston — Lake Michigan.
64 A CATALOG OF ILLINOIS ALGAE
E. OCELLATA (Ehr.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 490 (1927).
Briggs 1872A, p. 43: Cook, Chicago — Lake Michigan.
E. SOREX Kuetz. Boyer, loc. ciL, p. 489 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328: Cook, Chi-
cago— Lake Michigan.
E. TURGIDA (Ehr.) Kuetz. Boyer, loc. cit., p. 488 (1927).
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328; Ahlstrom
1936, p. 291 : Cook, Chicago, Evanston — Lake Michigan. Kofoid
1908, p. 50: Mason, Havana — IlHnois River.
E. TURGIDA var. westermanii (Ehr.) Grun. Boyer, loc. cit. (1927).
Eunotia westermanii Ehr.
Bailey 1845, p. 34, as Eunotia westermanii: St. Clair — Mississippi
River.
E. ZEBRA (Ehr.) Kuetz. Boyer, loc. cit., p. 490 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago — Lake Michigan.
RHOPALODIA O. Mueller, 1895
R. GiBBA (Kuetz.) Muell. Boyer, loc. cit., p. 491 (1927).
Epithemia gihba Kuetz.
Thomas & Chase 1887, p. 328, as Epithemia gihha: Cook, Chicago
— Lake Michigan.
R. VENTRICOSA (Kuetz.) Muell. Boyer, loc. cit. (1927).
Epithemia ventricosa Kuetz.
Transeau: Clark — Whetstone Creek (Oct.). Coles, Charleston —
ponds and small streams (Mar., Oct., Nov.). Thomas & Chase
1887, p. 328, as Epithemia ventricosa: Cook, Chicago — Lake
Michigan,
Suborder: SURIRELLINEAE
Family: NITZSCHIACEAE
DENTICULA Kuetzing, 1844; Grunow, 1862
D. TENUIS Kuetz. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
381. f. 723 (1930).
Transeau: Coles, Charleston — pond (Mar.).
HANTZSCHIA Grunow, 1880
H. AMPHioxYS (Ehr.) Grun. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 528 (1927).
Nitzschia amphioxys (Ehr.) Kuetz.
Transeau: Coles, Charleston — small streams (Mar., Nov.); Loxa
—ditch (Apr.). Thomas & Chase 1887, p. 329: Cook, Chicago-
Lake Michigan. Kofoid 1908, p. 57, as Nitzschia amphioxys:
Mason, Havana — Illinois River ("winter").
CLASSIFIED CATALOG OF ILLINOIS ALGAE 65
H. AMPHioxYS f. CAPiTATA Muell. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 394. f. 748 (1930).
Transeau: Coles, Charleston — small stream (Oct.).
H. AMPHIOXYS var. vivax (Hantz.) Grun. Boyer, Proc. Acad. Nat.
Sci. Phila. 79 (Suppl. 2): 528 (1927).
Thomas & Chase 1887, p. 329: Cook, Chicago — Lake Michigan.
NITZSCHIA Hassall, 1845
N. ACicuLARis (Kuetz.) W. Smith. Boyer, loc cit., p. 525 (1927).
Transeau: Coles, Charleston — small stream (Oct.).
N. CLAUSii Hantz. Boyer, loc. cit., p. 515 (1927).
Transeau: Coles, Mattoon — swamp (Apr.).
N. CLOSTERIUM (Ehr.) W. Smith. Boyer, loc. cit., p. 526 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan
N. COMMUTATA Grun. Hustedt in Pascher, Suesswass.-fl. Mitteleur.
10: 405. f. 774 (1930).
Transeau: Coles, Charleston — pond and creek (Apr.).
N. DENTicuLA Grun. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl.
2): 506 (1927).
Thomas & Chase, 1887, p. 330: Cook, Chicago — Lake Michigan.
N. DissiPATA (Kuetz.) Grun. Boyer, loc. cit., p. 512 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
N. HUNGARICA Grun. Boyer, loc. cit., p. 498 (1927).
Transeau: Clark— Whetstone Creek (Oct.). Coles, Charleston —
small streams (Jan., Apr.). Briggs 1872A, p. 44; Thomas & Chase
1887, p. 330: Cook, Chicago — Lake Michigan.
N. LINEARIS (Ag.) W. Smith. Boyer, loc. cit., p. 518 (1927).
Transeau: Coles, Charleston — small streams (Apr., Nov.); Em-
barrass— small stream (Mar.). Thomas & Chase 1887, p. 330:
Cook, Chicago — Lake Michigan. Agersborg 1930, p. 110: Macon,
Decatur — warm waste-water ditch (Dec.-Feb.).
N. LINEARIS var. TENUIS (W. Sm.) Grun. Boyer, loc. cit. (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
N. PALEA (Kuetz.) W. Smith. Boyer, loc. cit., p. 521 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
N. PALEA var. TENUiROSTRis Grun. Hustedt in Pascher, Suesswass.-fl.
Mitteleur. 10: 416. f. 801a (1930).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
N. SIGMOIDEA (Nitz.) W. Smith. Boyer, Proc. Acad. Nat. Sci. Phila.
79(Suppl. 2): 513 (1927).
Eddy 1934, p. 387: Champaign, Mahomet — Sangamon River
(May, Sept.). Transeau: Coles, Charleston — pond and small
stream (Mar.). Thomas «& Chase 1887, p. 330: Cook, Chicago —
Lake Michigan. Kofoid 1903, p. 516; 1908, p. 57: Mason, Havana
66 A CATALOG OF ILLINOIS ALGAE
— Illinois River; Topeka — Quiver Creek (Dec, Jan.)- Purdy
1930, p. 68: Will, Lockport— DesPlaines River (Oct.).
N. siNUATA (W. Sm.) Grun. Boyer, loc. cit., p. 506 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan.
N. SINUATA var. tabellaria Grun. Hustedt in Pascher, Suesswass.-
fl. Mitteleur. 10:409. f. 782 (1930) ; Mills, Index Diat., pp. 1234, 1237
(1934).
Thomas & Chase 1887, p. 330, as N. tabellaria: Cook, Chicago —
in Lake Michigan.
N. VERMicuLARis (Kuetz.) Hantz. Boyer, Proc. Acad. Nat. Sci. Phila.
79 (Suppl. 2): 514 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago— Lake Michigan.
Family: SURIRELLACEAE
CAMPYLODISCUS Ehrenberg, 1840
C. NORicus Ehr. Boyer, loc. cit., p. 554 (1927).
Thomas & Chase 1887, p. 328: Cook, Chicago— Lake Michigan.
CYMATOPLEURA W. Smith, 1851
C. ELLIPTICA (Breb.) W. Smith. Boyer, loc. cit., p. 532 (1927); Mills,
Index Diat., p. 1450 (1934).
Sphinctocystis elliptica (Kuetz.) Kuntze
Eddy 1934, p. 387, as Sphinctocystis elliptica: Champaign,
Mahomet — Sangamon River (May, Sept.). Briggs 1872A, p. 43;
Thomas & Chase 1887, p. 328; Eddy 1927B, pp. 208, 215, 221,
as Sphinctocystis elliptica; Daily 1938, p. 79: Cook, Chicago,
Evanston — Lake Michigan (July).
C. ELLIPTICA var. HiBERNiCA (W. Sm.) Hust. Hustedt in Pascher,
Suesswass.-fl. Mitteleur. 10: 427 f. 827 (1930); Mills, Index Diat.,
p. 537 (1934).
Cymatopleura hibernica W. Smith
Thomas & Chase 1887, p. 328, as C. hibernica: Cook, Chicago-
Lake Michigan.
C. ELLIPTICA f. SPIRALIS (Chasc) Boy. Boyer, Proc. Acad. Nat. Sci.
Phila. 79(Suppl. 2) : 533 (1927) ; Mills, loc. cit., pp. 536, 540 (1930).
Cymatopleura spiralis Chase
Thomas & Chase 1887, p. 328, as C. spiralis: Cook, Chicago-
Lake Michigan.
C. SOLEA (Breb.) W. Smith. Boyer, loc. cit., p. 532 (1927).
Sphinctocystis librilis Hass.
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 43;
Thomas & Chase 1887, p. 328; Jelliffe 1893, p. 311 (Cook).
Kofoid 1903, p. 516; 1908, p. 49 (Mason). Eddy 1927B, pp. 208,
CLASSIFIED CATALOG OF ILLINOIS ALGAE 67
215, 221 (Cook); 1931A, pp. 483, 486 (Cass, Macon, Piatt,
Sangamon); 1934, p. 387 as Sphinctocystis librilis (Champaign),
Daily 1938, p. 79 (Cook).
Cass, Chandlerville — Sangamon River (Sept.). Champaign,
Mahomet — Sangamon River (July-Sept., Dec). Cook, Chicago,
Evanston — Lake Michigan (June-Nov.). Macon, Harristown —
Sangamon River (Sept.). Mason, Havana — IlHnois River
("mainly winter"); Topeka — Quiver Creek (Sept.-Apr.). Piatt,
Monticello — Sangamon River (Sept.). Sangamon, Riverton —
Sangamon River (July).
C. SOLEA var. apiculata (W. Sm.) Ralfs. Boyer, loc. cit. (1927).
Cymatopleura apiculata W. Smith
Briggs 1872A, p. 43; Thomas & Chase 1887, p. 328, as C. api-
culata: Cook, Chicago — Lake Michigan.
C. SOLEA var. subconstricta Muell. Mills, Index Diat., p. 540
(1934).
Transeau: Coles, Charleston — small streams (Oct., Mar.).
C. SOLEA var. vulgaris Meist. Mills, loc. cit. (1934).
Transeau: Coles, Charleston — creek (Dec, Jan.).
SURIRELLA Turpin, 1828
S. ANGUSTA Kuetz. Boyer, Proc Acad. Nat. Sci. Phila. 79 (Supp. 2) :
542 (1927).
Transeau: Coles, Dorans — ditch (May). Thomas & Chase 1887,
p. 330: Cook, Chicago — Lake Michigan.
S. APICULATA W. Smith. Mills, Index Diat., pp. 1506, 1507 (1934).
Transeau: Coles, Charleston — small streams (Jan., Mar., Apr.).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. BiSERiATA Breb. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) :
535 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. BISERIATA var. BiFRONS (Ehr.) Hust. Hustedt in Pascher, Suess-
wass.-fl. Mitteleur. 10: 433. f. 833 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
S. DiDYMA Kuetz. Hustedt, loc. cit., p. 437. f. 848, 849 (1930).
Ahlstrom 1936, p. 292: Cook, Evanston — Lake Michigan.
S. ELEGANS Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2):
537 (1927).
Jelliffe 1893, p. 311: Cook, Chicago— Lake Michigan.
S. ELEGANS var. NORVEGICA (Eulenst.) Brun. Mills, Index Diat., pp.
1516, 1529 (1934).
Surirella norvegica Eulenst.
Thomas & Chase 1887, p. 330, as 5. norvegica: Cook, Chicago — •
Lake Michigan.
68 A CATALOG OF ILLINOIS ALGAE
S. GUATiMALENSis Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl.
2): 543 (1927).
Surirella cardinalis Kitton
Thomas & Chase 1887, p. 330, as 5. cardinalis: Cook, Chicago —
Lake Michigan.
S. LINEARIS W. Smith. Boyer, loc. cit., p. 538 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. LINEARIS var. CONSTRICTA (Ehr.) Grun. Hustedt in Pascher, Suess-
wass-fl. Mitteleur. 10: 434. f. 839 (1930).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. MiNUTA Breb. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 542
(1927); Mills, Index Diat., pp. 1527, 1531 (1934).
Surirella ovalis var. minuta (Breb.) Kirch.
Transeau: Coles, Charleston, Dorans — small streams and ditches
(Mar. -May) ; Kofoid 1908, p. 58, as 6*. ovalis var. minuta: Mason,
Havana — Illinois River (all months).
S. OREGONICA Ehr. Mills, Index Diat., p. 1530 (1934).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
S. OVALIS Breb. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 541
(1927).
Transeau: Coles, Mattoon — swamp (Apr.).
S. OVALIS var. pinnata V. H. Mills, Index Diat., p. 1531 (1934).
Transeau: Coles, Charleston — small stream (Oct.).
S. OVATA Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) :
541 (1927).
Transeau: Coles, Charleston — small streams (Jan., Mar.-May,
Nov.). Thomas & Chase 1887, p. 330; Daily 1938, p. 79: Cook,
Chicago, Evanston — Lake Michigan. Kofoid 1903, p. 516:
Mason, Topeka — Quiver Creek (Sept., Nov., Dec, Mar.).
S. PATELLA Kuetz. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
445. f. 868 (1930).
Transeau: Coles, Dorans — ditch (May).
S. ROBUSTA Ehr. Boyer, Proc. Acad. Nat. Sci. Phila. 79 (Suppl. 2) : 537
(1927).
Eddy 1934, p. 387: Champaign, Mahomet — Sangamon River
(July-Sept.); 1927B, pp. 215, 221: Cook, Chicago— Lake Michi-
gan (July); 1931A, p. 483: Macon, Harristown — Sangamon
River (July); 1931 B, pp. 457, 480: Pulaski, Wetaug— sink-hole
ponds (Oct., Apr.); 1931A, p. 486: Sangamon, Riverton— Sanga-
mon River (Sept.).
S. SAXONICA Auersw. Boyer, loc. cit., p. 535 (1927).
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 69
S. SPIRALIS Kuetz. Hustedt in Pascher, Suesswass.-fl. Mitteleur. 10:
445. f. 870 (1930).
Transeau: Coles, Charleston — small stream (Mar.). Kofoid 1908,
pp. 53, 318: Fulton — Spoon River. Mason, Topeka — Quiver
Creek ("perennial").
S. SPLENDIDA (Ehr.) Kuetz. Boyer, Proc. Acad. Nat. Sci. Phila. 79
(Suppl. 2): 536 (1927).
Babcock 1872A, p. 13; 1872B, p. 104; Briggs 1872A, p. 44;
Thomas & Chase 1887, p. 330: Cook, Chicago — Lake Michigan.
Kofoid 1903, pp. 516, 537: Fulton— Spoon River. Mason, Hav-
ana-— Illinois River; Topeka — Quiver Creek (Sept.-Apr.).
Phylum: CHLOROPHYTA
Class: CHLOROPHYCEAE
Order: VOLVOCALES
Family: POLYBLEPHARIDACEAE
CHLORASTER Ehrenberg, 1848
C. GYRANS Ehr. Smith, Freshw. Alg. U. S., p. 312. f. 206 (1933).
Kofoid 1908, pp. 68, 72: Mason, Havana — Illinois River (July,
Aug.).
Family: CHLAMYDOMONADACEAE
CARTERIA Diesing, 1866
C. MULTiFiLis (Fresen.) Dill. Pascher, Suesswass.-fl. Duetsch. 4: 150.
f. 98 (1927).
Kofoid 1908, pp. 68, 70: Mason, Havana — Illinois River (Aug.-
Feb.).
Family: VOLVOCACEAE
EUDORINA Ehrenberg, 1832
E. ELEGANS Ehr. Tiffany, Contrib. Franz T. Stone Lab. 6: 42. pi. 6. f.
88 (1934).
Kofoid 1898, p. 273 (Fulton, Mason); 1903, p. 516; 1908, pp. 79,
292, 321 (Mason). Collins 1909, p. 134; Transeau 1913B, p. 79
(Coles, Montgomery). Galtsoff 1924, pp. 399, 402, 404, 405
(Carroll, Hancock, Henderson, Jo Daviess, Mercer, Rock Is-
land, Whiteside). Eddy & Simer 1929, p. 62 (Morgan). Eddy
1931A, pp. 474, 479, 481, 484 (Cass, Macon, Menard, Piatt,
Sangamon); 1931B, pp. 451, 464 (Pulaski); 1934, pp. 385, 386,
388-391, 396, 399, 400, 403 (Adams, Alexander, Calhoun, Cham-
paign, Cook, Hancock, Henry, Jersey, Lake, Macon, Madison,
Mason, Pike, St. Clair, Union, Whiteside). Britton (Cook, Lake,
. McHenry).
70 A CATALOG OF ILLINOIS ALGAE
Adams — Mississippi River (June). Alexander — Horseshoe
Lake (June-Aug.)- Calhoun — Mississippi River (June). Carroll —
Mississippi River (July, Sept.). Cass, Chandlerville — Sangamon
River (June-Sept.). Champaign, Urbana — ox-bow pond (Aug.).
Coles, Charleston — ponds (May-Oct.). Cook, Chicago — Lake
Michigan; Wheeling — DesPlaines River at Dundee Road, Aug.
8, 1939, #766. Fulton — Thompson's Lake (June). Hancock,
Henderson — Mississippi River (June, July). Henry, Colona —
Slough (June-Aug.). Jersey — Mississippi River (June). Jo
Daviess^ — Mississippi River (July, Sept.). Lake, Antioch —
Grass Lake-Lake Marie Channel, Sept. 14, 1939, #1029; Fox
Lake— in Fox Lake, Aug. 25, 1939, #951 ; Halfday— swamp about
2^ miles W., July 29, 1938, #184; Klondike— Grass Lake, Grass
Lake-Fox Lake channel, and small channel entering E. side of
Grass Lake, Aug. 25, 1939, #945, 948, 971; Lake Zurich— in
Lake Zurich, Aug. 24, 1939, #914; Long Lake— in Long Lake
("summer"). Macon, Decatur^ — Lake Decatur (June-Sept.).
Madison — Mississippi River (June). Mason, Havana — Illinois
River (Feb.-Oct.); Quiver Lake (June); Topeka — Quiver Creek
(Apr.). McHenry, Greenwood — Nippersink Creek, July 6, 1939,
#365, 366; McHenry — swamp E. side of McCuIlom Lake, July 7,
1939, #401, 402; Richmond— Twin Lakes (Lake Elizabeth), Aug.
2, 1939, #729; Woodstock— pond 2^ miles W., July 8, 1939, #439,
445. Menard, Petersburg — Sangamon River (June, Sept.). Mer-
cer, New Boston — Mississippi River, Sturgeon Bay (July).
Montgomery, Coffeen — pond (May). Morgan, Meredosia — Illi-
nois River. Piatt, Monticello — Sangamon River (Sept.). Pike —
Mississippi River (June). Pulaski, Wetaug — sink-hole ponds
(Apr., July, Sept., Dec). Rock Island — Mississippi River (July,
Sept.). Sangamon, Illiopolis, Riverton, Springfield — Sangamon
River (July). St. Clair — Mississippi River (June). Union, Larue
— Wolf Lake (June-Aug.). Whiteside, Erie — Rock River Slough
(June-Aug.); Sterling — Rock River ("summer").
GONIUM Mueller, 1773
G. PECTORALE Muell. Tiffany, loc. cit., p. 41. pi. 15. f. 357 (1934).
Collins 1909, p. 132; Transeau 1913B, p. 79: Coles, Charleston-
ponds and small streams (Jan., June, July). Britton: Cook, Niles
— shallow intermittent pond at Dempster St. and Milwaukee
Ave., Apr. 7, 1939, #224; Sag Bridge— small shallow ponds,
July 13, Sept. 8, 1939, #510, 994. Kofoid 1908, pp. 82, 322:
Mason, Havana^ — Illinois River (May, Aug., Sept.). Eddy
1931 A, pp. 481, 484: Sangamon, Riverton, Springfield — Sanga-
mon River (July-Sept.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 71
G. sociALE (Duj.) Warm. Smith, Freshw. Alg. U. S., p. 333 (1934).
Transeau 1913B, p. 79: Coles, Charleston — pond (Apr.).
PANDORINA Bory, 1824
P. MORUM Bory. Tiffany, Contrib. Franz. T. Stone Lab. 6: 41. pi. 6.
f. 93, 94 (1934).
Johnson & Atwell 1890, p. 19 (Cook). Hempel 1898, p. 327 (Ful-
ton, Mason). Kofoid 1898, p. 273; 1908, pp. 84, 292, 323 (Ma-
son). Collins 1909, p. 132; Transeau 1913B, p. 79 (Clark, Coles,
Effingham, Moultrie). Eddy 1931B, p. 464 (Pulaski). Eddy
1931A, pp. 474, 479, 481 (Cass, Macon, Menard, Sangamon).
Britton 1940, p. 71 (Cook). Britton (Cook, Lake, McHenry).
Cass, Chandlerville — Sangamon River (June, July). Clark,
Casey — pond (Apr.). Coles, Ashmore — pond and bayous (Apr.,
• Oct.); Charleston — small streams and ponds (all months); Lerna
— pond (May, June). Cook, Argonne Forest Preserve — small
ponds and swamps, July 13, Sept. 8, 1939, #473, 495, 504, 505,
520, 522, 529, 534, 998; Tuma Lake, July 14, 1939, #555; Maple
Lake, Sept. 8, 1939, #993; Evanston— "Big Ditch" (Oct.); Glen-
view — small temporary ponds and swamps, July 12, 1939, #470,
May 12, 1938, #56, 59; Goeselville — small ponds at Mascouten
Forest Preserve, July 14, 1939, #581; Morton Grove — small
ponds, May 10, June 23, Oct. 3, 1938, #43, 77, 217; Northbrook
- — small pond on Techny Road one mile W. of Landwehr Road,
June 27, 1938, #110; ponds and swamps at Somme Forest Pre-
serve, May 8, July 3, 1939, #240, 242, 246, 248, 350; Orland Park
— small pond and extensive swamp on 131st St. W. of Wolf
Road, Sept. 8, 1939, #1016; Palos Park— swamp along 86th
Ave., July 14, 1939, #564; Park Ridge— pond, July 12, 1939,
#455, DesPlaines River at Touhy Ave., July 12, 1939, #452; Sag
Bridge— quarry ponds, Sept. 8, 1939, #1007, 1008; Schnells
Corner^ — ^small ponds at Elk Grove Forest Preserve, June 23,
1938, Aug. 8, 1939, #95, 790; Skokie— temporary pond on
Dempster St. at Milwaukee Ave., June 23, 1938, #84; Wheeling
—DesPlaines River at Dundee Road, Aug. 8, 1939, #766.
Effingham, Effingham — pond (Sept.). Fulton — Illinois River and
lakes (Jan.-Sept.). Lake, Antioch — Grass Lake-Lake Marie
channel, Sept. 14, 1939, #1028, 1029; Everett— small pond. May
15, 1938, #71; Fox Lake— Nippersink Lake, July 25, 1939, #599,
602, Aug. 25, 1939, #968, Fox Lake and Nippersink Creek, July
25, 1939, #601, 604; Halfday— swamp and small pond, July 29,
1938, #183, 184; Klondike — Fox Lake, Grass Lake-Fox Lake
channel and small channel entering E. side of Grass Lake, Aug.
. 25, 1939, j^45, 948, 950, 971; Libertyville— DesPlaines River,
72 A CATALOG OF ILLINOIS ALGAE
July 29, 1938, #181. Macon, Decatur — Lake Decatur — Lake
Decatur (July). Mason, Havana — Illinois River and adjacent
waters (all months). McHenry, Greenwood — Wonder Lake, July
6, 1939, #366; small creek, July 7, 1939, #431; Hartland— north
branch of the Kishwaukee River, July 8, 1939, #438; McHenry —
swamp on E. side of McCullom Lake, July 6, 1939, #374, 385,
387, 401; Woodstock— ponds and swamps, July 7, 1939, #403,
420, 425, 439, 445. Menard, Petersburg— Sangamon River
(July, Sept.). Moultrie, Sullivan — artificial pond (Aug.). Pulaski,
Wetaug— sink-hole ponds (Apr., Sept.). Sangamon, Riverton,
Springfield — Sangamon River (July, Sept.).
PLATYDORINA Kofoid, 1899
P. CAUDATA Kofoid. Tiffany, loc. ciL, p. 43. f. 92 (1934).
Kofoid 1899, p. 419; 1900, p. 542 (Adams, Champaign, Fulton,'
Mason, Morgan); 1908, pp. 85, 292, 323 (Mason). Collins 1909,
p. 134; Galtsoff 1924, pp. 399, 402, 404, 405 (Carroll, Hancock
Henderson, Jo Daviess, Mercer, Rock Island, Whiteside). Eddy
1931A, pp. 481, 484 (Macon, Menard, Sangamon).
Adams, Quincy — Libby Lake (Aug.). Carroll — Mississippi
River (July, Sept.). Champaign, Urbana — Salt Fork (June-
Nov.). Fulton — Flag, Phelps and Thompsons Lakes (June-
Nov.). Hancock, Henderson, Jo Daviess — Mississippi River
(July-Sept.). Macon, Decatur — Lake Decatur (July). Mason,
Havana — Illinois River (June-Nov., Feb.); Quiver and Mat-
anzas Lakes. Menard, Petersburg^ — Sangamon River (Sept.).
Mercer, New Boston — Mississippi River (July, Aug.). Morgan,
Meredosia — Illinois River and Meredosia Lake (June-Nov.).
Rock Island — Mississippi River (July-Sept.). Sangamon, River-
ton — Sangamon River (July). Whiteside — Mississippi River
(July, Sept.).
PLEODORINA Shaw, 1894
P. CALIFORNICA Shaw. Tiffany, loc. cit., p. 42. pi. 6, 15. f. 91, 362
(1934).
Kofoid 1898, p. 273; 1899, p. 421; 1900, p. 543: Champaign,
Urbana— Salt Fork (Aug.). Britton: Cook, Northbrook— ponds
at Somme Forest Preserve, June 27, 1938, #111, 112; Schnells
Corner — ponds at Elk Grove Forest Preserve, June 23, 1938,
#91, 92. Lake, Fox Lake— Nippersink Creek, July 25, 1939, #601.
Clinton 1894, p. 383; Hempel 1898, p. 328; Kofoid 1908, pp. 86,
292, 323: Mason, Havana — Illinois River and adjacent lakes
(May-Oct.). Britton: McHenry, Richmond — South Twin Lake
CLASSIFIED CATALOG OF ILLINOIS ALGAE 73
(Lake Elizabeth), Aug. 2, 1939, #729. Eddy 1931B, p. 464:
Pulaski, Wetaug — sink-hole ponds (Apr., July). Collins 1909,
p. 133: ? County.
P. ILLINOISENSIS Kofoid. Tiffany, loc. cit., p. 6. f. 90 (1934).
Kofoid 1898, p. 273 (Fulton, Mason); 1908, p. 86 (Mason);
Collins 1909, p. 133; Transeau 1913B, p. 79 (Clay). Galtsoff
1924, pp. 399, 402, 404 (Carroll, Hancock, Henderson, Jo
Daviess, Mercer, Rock Island, Whiteside). Eddy 1931A, pp.
474, 479, 481, 484 (Cass, Macon, Sangamon); 1931B, pp. 456,
464 (Pulaski); 1934, pp. 388, 403 (Macon).
Carroll — Mississippi River (July, Sept.). Cass, Chandlerville —
Sangamon River (June, July). Clay, Sailor Springs — Little
Muddy Creek (Aug.). Fulton — Thompsons Lake (June). Han-
cock, Henderson, Jo Daviess — Mississippi River (July-Sept.).
Macon, Decatur — Lake Decatur (June-Sept.). Mason, Havana
—Illinois River and Quiver Lake ("summer")- Mercer — Mis-
sissippi River (Aug.). Pulaski, Wetaug — sink-hole ponds (July,
Sept.). Rock Island — Mississippi River (July-Sept.). Sangamon,
Riverton, Springfield — Sangamon River (June-Sept.). White-
side— Mississippi River (July, Sept.).
VOLVOX Linnaeus, 1758
V. AUREUS Ehr. Tiffany, loc. cit., p. 43. f. 101 (1934).
Collins 1909, p. 135; Transeau 1913B, p. 79: Coles, Ashmore—
Polecat Creek (June); Charleston, Lerna — ponds (June, July).
Kofoid 1908, p. 91 : Mason, Havana- — Illinois River (Mar.-Aug.).
V. GLOBATOR Linn. Tiffany, loc. cit., f. 102, 103 (1934).
ColHns 1909, p. 135; Transeau 1913B, p. 79: Clark, Casey-
ponds (Apr., May, Nov.). Coles, Ashmore, Lerna- — ponds (Apr.).
Johnson & Atwell 1890, p. 19; O'Hanlon 1930, p. 100; Britton:
Cook, Evanston — "Big Ditch" (Oct.); Palos Park — pond (June);
Sag Bridge— small pond, July 13, 1939, #511. Hempel 1898, p.
327: Fulton — Illinois River and adjacent lakes (July; "rare in
midwinter"). Hempel, loc. cit. (1898) ; Kofoid 1908, p. 91 : Mason,
Havana — Illinois River and adjacent lakes (May-Aug.). Tran-
seau: Montgomery, Cofifeen — pond (May). Eddy 1931B, p. 451:
Pulaski, Wetaug — sink-hole pond (Apr.). Transeau: Richland,
Calhoun — pond (Apr.).
V. SPERMATOSPHAERA Powcrs. Paschcr, Suesswass.-fl. Deutsch. 4: 469
(1927).
Galtsoff 1924, pp. 399, 402: Carroll, Hancock, Henderson, Jo
Daviess, Mercer, Rock Island, Whiteside^ — Mississippi River
(July-Sept.).
74 A CATALOG OF ILLINOIS ALGAE
Family: SPHAERELLACEAE
SPHAERELLA Sommerfelt, 1824
S. LACUSTRis (Girod.) Wittr. Hazen, Mem. Torr. Bot. Club 6: 211-
246. pi. 86, 87. f. 1-52 (1899).
Chlamydococcus pluvialis A. Br. ; Haematococcus pluvialis Flow.
Transeau 1913B, p. 79, as Haematococcus pluvialis: Coles,
Charleston — pool (Mar.). Johnson & Atwell 1890, p. 19, as
Chlamydococcus pluvialis; Hazen 1899, p. 215: Cook, Chicago —
cemetery urns; Evanston — in "Big Ditch" and a small stream
(Sept.-Nov.); cemetery urns.
Order: TETRASPORALES
Family: PALMELLACEAE
GLOEOCYSTIS Naegeli, 1849
G. AMPLA Kuetz. Smith, Freshw. Alg. U. S., p. 353. f. 236B (1934)-
Transeau: Coles, Charleston — pond (May). Britton: Cook, Sag
Bridge — small pond and extensive swamp, Sept. 8, 1939, #1021 ;
Techny — temporary slough along C. & N. R. R., May 12, 1938,
#63.
G. GIGAS (Kuetz.) Lag. Tiffany, Contrib. Franz T. Stone Lab. 6: 44.
pl. 7. f. 110 (1934).
Transeau: Coles, Charleston — pond (May). Kofoid 1908, p. 34:
Mason, Havana^ — Illinois River.
G. PLANCTONICA (W. & G. S. West) Lemm. Tiffany, loc. cit., f. 109
(1934).
Daily 1938, p. 80: Cook, Evanston — Lake Michigan.
PALMELLA Lyngbye, 1819; Chodat, 1902
P. MINIATA Leib. Collins, Tufts Coll. Stud. 2(3): 137 (1909).
Transeau: Clark, Casey^ — pond (Apr.).
SPHAEROCYSTIS Chodat, 1897
S. SCHROETERI Chod. Tiffany, Contrib. Franz T. Stone Lab. 6: 45. pl.
7. f. 108 (1934).
Eddy 1927B, pp. 215, 222; Daily 1938, p. 80; Britton: Cook,
Chicago, Evanston — Lake Michigan (July) ; Morton Grove —
small pond about 1 mile N.W., May 10, 1938, #43. Britton:
Lake, Waukegan — in Dead River at Dunes Park, May 11, 1939,
#258; Fox Lake — opposite Lotus Point in Grass Lake, Aug. 25,
1939, #945; small channel entering E. side of Grass Lake, Aug.
25, 1939, #971. McHenry, McHenry— swamp E. of McCullom
Lake, July 6, 1939, #374.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 75
Family: TETRASPORACEAE
APIOCYSTIS Naegeli, 1849
A. BRAUNIANA Naeg. Tiffany, loc. cit., p. 46. f. 107, 107A (1934).
Transeau 1913B, p. 79: Coles, Charleston— ponds (Apr.). Brit-
ton: Cook, Glenview — small ponds in swamp about 3 miles W.,
May 12, 1939, #56, 58.
TETRASPORA Link, 1809
T. GELATiNOSA (Vauch.) Desv. Tiffany, loc. cit., p. 45 (1934).
Transeau 1913B, p. 79: Clark, Casey^ — reservoir pond (Sept.).
Coles, Charleston — campus pond (Sept.).
T. LUBRICA (Roth) Ag. Tiffany, loc. cit. (1934).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (Mar.-May). Transeau 1913B, p. 79; 1916, p. 124:
Clark, Casey^ — ponds and ditches (Apr., May) ; Whetstone Creek
(June). Coles, Ashmore, Charleston, Doarns, Lerna — small
ponds, pools, ditches, small streams and on rocks in Embarrass
River (Jan.-June, Oct.-Dec); laboratory aquarium (Feb.).
Cumberland, Greenup — ponds and ditch (Apr., Nov.); Jewett —
pond S.E. of (May). Douglas, Areola, Arthur — pond and ditches
(May, July). Edgar, Paris — reservoir (Mar.). Eflangham, Effing-
ham-— pool and artificial pond (Dec). Jasper, Wheeler — pond
(Apr.). Lawrence, Pinkstaff — ponds and drain-tile (Mar., Oct.).
Moultrie, Sullivan — ditch (May). ? County — Sangamon River
(Aug.).
Order: ULOTRICHALES
Suborder: ULOTRICHINEAE
Family: ULOTRICHACEAE
RADIOFILUM Schmidle, 1894
R. IRREGULARE (Wille) Brunnth. Heering in Pascher, Suesswass.-fl.
Deutsch. 6: 40. f. 42-44 (1914).
Britton : Cook, Glenview — small pond and swamp about 3 miles
W., May 12, 1938, #56.
STICHOCOCCUS Naegeli, 1849; Gay, 1891
S. BACiLLARis Naeg. Hazen, Mem. Torr. Bot. Club 11 : 160. pi. 22. f. 1
(1902).
Transeau 1913B, p. 81 : Coles, Charleston — pool (Apr.) ; Lerna —
pond (May). Field Museum: Cook, Chicago — growing abun-
dantly in culture jars, Univ. of Chicago greenhouse, coll. by L. J.
King, Jan. 18, 1940. .^»,,> ^
\m ' r.- ^
76 A CATALOG OF ILLINOIS ALGAE
S. FLACCiDUS (Kuetz.) Gay. Hazen, loc. ciL, p. 164. pi. 21. f. 14-17
(1902).
Transeau 1913B, p. 81 : Clark, Casey — on soil (May). Coles,
Charleston — on soil (July, Sept., Oct.), small creek (May);
Humboldt — ditch (Apr.); Mattoon— swamp (Apr.).
S. suBTiLis (Kuetz.) Klerck. Hazen, loc. cit., p. 162. pi. 21. f. 10-13
(1902).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (May). Transeau 1913B, p. 81 : Coles, Charleston —
small streams, ponds, pools, ditches and swamps (Mar., Apr.),
laboratory aquarium (Mar.). Drouet, Field Mus. : Dupage — in a
rain pool in mud flats of Illinois River opposite Lemont, coll. by
P. C. Standley, J. A. Steyermark and F. Drouet, Oct. 18, 1938
ULOTHRIX Kuetzing, 1833
U. TENERRiMA Kuetz. Hazcn, loc. cit., p. 151. f. 3-4 (1902).
Britton 1940, p. 71: Cook, Morton Grove — small greenhouse
reservoir, May 10, 1938, #42. Britton: Will, Manteno— ditch on
Route 44 about 5 miles N.W., Apr. 18, 1938, #6.
U. VARIABILIS Kuetz. Hazen, loc. cit., p. 152. f. 5-7 (1902).
Transeau 1913B, p. 81; 1913C, p. 2>3: Coles, Charleston— small
creek, pools, ditches and drain-tile (Mar., Apr., Oct.). Britton
1940, p. 71: Cook, Morton Grove^ — small pond about 1 mile
N.W., May 10, 1938, #43. Britton: Kankakee, Kankakee—
slough along Route 49, about 5 miles N., Apr. 18, 1938, #5.
U. ZONATA (Weber & Mohr) Kuetz. Hazen, loc. cit., p. 147. pi. 20. f.
1-4 (1902).
Johnson & Atwell 1890, p. 19; Britton 1940, p. 71: Cook, Evans-
ton — Lake Michigan (Nov.); Morton Grove — small pond, May
10, 1938, #42; Palos Park— swamp, Sept. 8, 1939, #975. Forbes &
Richardson 1913, pp. 502, 503, 506: Grundy, Dresden Heights —
DesPlaines River (Sept.). Agersborg 1930, p. 106: Macon, De-
catur— warm waste-water ditch (Dec.-Feb.). Forbes & Richard-
son, loc. cit.: Will, Lockport — Sanitary Canal and DesPlaines
River (Sept.).
Family: MICROSPORACEAE
• MICROSPORA Thuret, 1850; Lagerheim, 1888
M. FLOCCOSA (Vauch.) Thur. Hazen, loc. cit., p. 173. pi. 24. f. 1-4
(1902).
Transeau: Montgomery, Coffeen — (May).
M. PACHYDERMA (Wille) Lag. Collins, Tufts Coll. Stud. 2(3): 193.
(1909).
Transeau: Clark, Casey — pondJ(Apr.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 77
M. QUADRATA Haz. Hazen, Mem. Torr. Bot. Club 11: 178. pi. 24. f.
14, 15 (1902).
Transeau: Clark, Casey — pond (Nov.). Britton: Cook, Palos
Park— swamp, Sept. 8, 1939, #975. Transeau : Effingham, Effing-
ham— on sandstone at falls (Dec).
M. STAGNORUM (Kuetz.) Lag. Hazen, loc. cit., p. 176. pi. 24. f. 12, 13
(1902).
Transeau 1913B, p. 81 : Clark, Casey— pond drain (May). Coles,
Ashmore — on rocks at spring (June) ; Charleston — small streams,
ponds, pools and ditches (Jan.-May, Sept., Nov.); Dorans —
R. R. pools (May). Douglas, Areola — stockyards (May) ; Tuscola
— pond (May).
M. TUMiDULA Haz. Hazen, loc. cit., p. 177. pi. 24. f. 8-11 (1902).
Transeau 1913B, p. 82: Coles, Charleston — ponds and ditches
(Mar.-July, Sept., Nov.). Britton: Cook, Palos Park — swamp,
Sept. 8, 1939, #975.
M. wiLLEANA Lag. Hazen, loc. cit., p. 175. pi. 24. f. 5-7 (1902).
Transeau: Coles, Ashmore — pond (Oct.); Lerna — pond (Apr.).
Family: CYLINDROCAPSACEAE
CYLINDROCAPSA Reinsch, 1867
C. GEMINELLA Wolle. Tiffany, Amer. Midi. Nat. 18: 918. pi. 1. f. 19
(1937).
Transeau: Clark, Casey — pond (Sept.). Coles, Charleston —
ponds (Apr., June, Oct.). Britton: Cook, Glenview — small pond
and swamp about 3 miles W., July 12, 1939, #466; Northbrook —
pond and swamp at Somme Forest Preserve, July 3, Aug. 6,
1939, #358, 359, 763; Sag Bridge— small pond, July 13, 1939,
#483. McHenry, Harvard — swamp about 3 miles N.E., July 8,
1939, #436; Woodstock — swamp E. of Route 14 about 4 miles
S.W., July 7, 1939, #412.
C. GEMINELLA var. MINOR Hansg. Tiffany, loc. cit., f. 20 (1937).
Transeau 1913B, p. 82; 1916, p. 124: Coles, Charleston— ponds
(July-Nov.). Britton 1940, p. 71: Cook, Morton Grove — small
pond about 1 mile N.W., May 10, 1938, June 23, 1938, #43, 77;
Northbrook — small ponds at Somme Forest Preserve, May 15,
June 27, 1938, #65, 66, 113. Transeau: Lawrence, Lawrenceville
— gravel pit (May); Pinkstaff — Bee Branch Creek (July).
Family: CHAETOPHORACEAE
APHANOCHAETE A. Braun, 1851
A. REPENS A. Br. Tiffany, loc. cit., p. 920. f. 18 (1937) ; Smith, Freshw.
Alg. U. S. p. 405 (1934).
78 A CATALOG OF ILLINOIS ALGAE
Herposteiron confervicola Naeg.
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (June). Transeau 1913B, p. 88; 1916, p. 124, as
Herposteiron confervicola: Clark, Casey — pond (July, Nov.).
Coles, Ashmore — pond (Apr.); Charleston — ponds (Jan., Apr.-
July,Nov.); Lerna— ponds (May). Johnson & Atwell 1890, p. 19;
Britton: Cook, Evanston — prairie ditches (Mar.); Glenview —
swamps and intermittent ponds about 2 miles W., May 12, June
23, 1938, #53, 56, 99; Northbrook — small ponds and swamp on
Techny Road just E. of Landwehr Road and Pfingsten Road
about 1 mile S. of Techny Road, May 12, 1938, #62, 64; Schnells
Corner — small pond at Elk Grove Forest Preserve, June 22, 1939,
#323. Transeau: Efl&ngham, Effingham — pond and ditch (Dec,
Mar.). Britton: Lake, Everett — small pond about f mile S.,
May 10, 1938, #71; Libertyville— swamp E. of, July 14, 1938,
#120.
CHAETOPHORA Schrank, 1789
C. ATTENUATA Haz. Hazen, Mem. Torr. Bot. Club 11: 213. pi. 39. f.
1, 2 (1902).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (May, June).
C. ELEGANS (Roth) Ag. Hazen, loc. cit., p. 211. pi. 37. f. 1-3 (1902).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (May-July). Transeau 1913B, p. 87: Clark, Casey-
ponds (Apr.); Whetstone Creek (June). Coles, Charleston —
ponds, ditches, springs and small streams (all months) ; Wrights-
ville — small stream (June). Johnson & Atwell 1890, p. 19; Brit-
ton: Cook, Evanston — (Apr.); Glenview — swamp and intermit-
tent ponds about H miles W., May 12, 1938, #53, 55-58; North-
brook — small ponds and swamps just E. and W. of Landwehr
Road on Techny Road, May 12, 1938, #60, 62, 63; small pond in
Somme Forest Preserve, May 15, 1938, #65. Transeau : Douglas,
Areola — stockyards (May); Arthur — pond and pools (May).
Jasper, Newton — pond (May). Montgomery, Coffeen — pond
(May).
C. INCRASSATA (Huds.) Haz. Hazen, loc. cit., p. 214. pi. 38. f. 2, 3
(1902).
Chaetophora endiviaefolia Ag.
Transeau 1913B, p. 87: Clark, Casey— ponds (Apr., May).
Coles, Ashmore — pond (May); Charleston — ponds, pools and
small streams (Dec-May); Dorans— pools (May); Wrightsville
^ponds (Apr., May). Johnson & Atwell 1890, p. 19, as C.
endiviaefolia; Britton: Cook, Glenview — swamps and intermit-
tent ponds about \\ miles W., May 12, 1938, #53, 55-58; Niles-
CLASSIFIED CATALOG OF ILLINOIS ALGAE 79
small pond about ^ mile N. of Dempster St.., May 10, 1938, #50;
Northbrook — small ponds and swamps just E. and W. of Land-
wehr Road on Techny Road, May 12, 1938, #62, 63; small pond
in Somme Forest Preserve, May 15, 1938, #67; swamp about 3
miles S.W., May 12, 1938, #60; Park Ridge— small ponds at Park
Ridge Country Club, May 10, 1938, #45, 46; Techny— intermit-
tent railroad pond. May 12, 1938, #61; small pond about 1|
miles S.W., May 12, 1938, #64; Woodlawn— (Nov.). Transeau:
Cumberland, Greenup — ditch (Nov.). Douglas, Areola — railroad
pools (May); Arthur — ponds and pools (May). Britton: Lake,
Waukegan— in Dead River at Dunes Park, May 11, 1939, #255;
Lake Forest— small pond. May 15, 1938, #73.
C. pisiFORMis (Roth) Ag. Hazen, loc. cit., p. 212. pi. 38. f. 1 (1902).
Britton: Cook, Glen view — ponds and swamps about 1^ miles W.,
May 12, 1938, #53, 56-58; Northbrook — swamp about 3 miles
S.W., May 12, 1938, #60; small ponds and swamp on Techny
Road just E. and W. of Landwehr Road, May 12, 1938, #27,
28; small pond at Somme Forest Preserve, May 15, 1938, #65;
Niles — small pond about \ mile N. of Dempster St., May 10,
1938, #50. Transeau: Douglas, Areola — pool (May); Arthur-
pond (May). Britton : Lake, Waukegan^ — ^in Dead River at Dunes
Park, May 11, 1939, #256; Lake Forest— small pond. May 15,
1938, #73.
CHLOROTYLIUM Kuetzing, 1843
C. MAMMIFORME Kuctz. (Balb.) Kuetz. Heering in Pascher, Suess-
wass.-fl. Deutsch. 6: 114. f. 165 (1914).
Transeau: Coles, Charleston — creek (May.).
DRAPARNALDIA Bory, 1808
D. ACUTA (Ag.) Kuetz. Hazen, Mem. Torn Bot. Club 11 : 219 (1902).
Transeau: Clark, Casey^ — stream S.W. of. Coles, Charleston —
small creek. Drouet, Field Mus.: Cook, Willow Springs — in
swamp along Route 4A E. of, coll. by P. C. Standley, J. A.
Steyermark and F. Drouet, Oct. 18, 1938.
D. GLOMERATA (Vauch.) Ag. Hazcu, loc. cit., p. 220. pi. 40. f. 3, 4
(1902).
Transeau 1913B, p. 87: Coles, Charleston — Kickapoo Creek
(May); Dorans, Loxa — ponds (May). Johnson & Atwell 1890, p.
19; Britton: Cook, Evanston — (Apr.); Glenview — swamps and
intermittent ponds about \\ miles W., May 12, 1938, #56-58;
swamp about 3 miles S.W., May 12, 1938, #60; small ponds and
swamps on Techny Road just E. and W. of Landwehr Road,
May 12, 1938, #62, 63; Techny— small pond about 1| miles
80 A CATALOG OF ILLINOIS ALGAE
S.W., May 12, 1938, #64. Transeau: Cumberland, Greenup —
ditch (Nov.); Jewett — stream (May). Edgar, Paris — ditch
(Mar.).
D. PLUMOSA (Vauch.) Ag. Hazen, loc. cit., p. 218. f. 1, 2, (1902).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (Mar.). Transeau 1913B, p. 87; 1913C, p. 32; 1916,
p. 124: Clark, Casey — pond, ditches, and swampy stream (Apr.).
Coles, Ashmore — pond (Apr.) ; Charleston— small streams,
ponds and pools (Nov.-June); Dorans — pools (May); Lerna —
creek (May); Wrightsville — small stream (May, June). Craw-
ford, Annapolis — (Dec). Cumberland, Greenup — ditch pools
(Nov.); Jewett — small stream (May). Douglas, Areola — ditch
(May). Edgar, Paris — reservoir (Apr.). Effingham, Effingham —
small stream (Apr.); on sandstone at falls (Dec). Jasper, New-
ton— smalls tream (Apr.); Wheeler — ditch (Dec). Montgomery,
Waggoner — pond and creek (Dec, May).
D. RAVENELii Wolle. Hazeu, loc. cit., p. 224 (1902).
Collins 1912, p. 94; Transeau 1913B, p. 88; 1916, p. 124: Clark,
Casey, Oilfield — ponds (May). Coles, Charleston, Lerna, Loxa —
ditches, ponds, pools (Mar.-May). Douglas, Areola — pool
(May).
MICROTHAMNION Naegeli, 1849
M. KUETZiNGiANUM Naeg. Hazen, loc. cit., p. 191. pi. 26. f. 1; pi. 27.
f. 2-4 (1902).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (Feb., July). Transeau 1913B, p. 86: Coles, Charles-
ton— creek 3 miles W. of (June). Britton: Cook, Morton Grove —
small pond about 1 mile N.W., May 10, 1938, #43.
M. STRiCTissiMUM Rab. Hazen, loc. cit., pi. 26. f. 2-5 (1902).
Transeau 1913B, p. 87: Clark, Casey— pond (Nov.). Coles,
Charleston — small streams, ponds and pools (Mar., Nov., Dec).
STIGEOCLONIUM Kuetzing, 1843
S. GLOMERATUM (Haz.) Coll. Collins, Tufts Coll. Stud. 2(3): 301
(1909).
Transeau 1913B, p. 87: Coles, Charleston — ponds, pools and
ditches (Apr.).
S. LONGIPILUM Kuetz. Heering in Pascher, Suesswass.-fl. Deutsch. 6:
76. f. 104 (1914).
Johnson & Atwell 1890, p. 19: Cook, Evanston— (Apr.).
S. LUBRICUM (Dillw.) Kuetz. Collins, Tufts Coll. Stud. 2: 298. f. 84
(1909).
Forbes & Richardson 1913, pp. 500, 528: LaSalle, Starved Rock
— Illinois River (Sept., Oct.). Putnam, Hennepin — Illinois River.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 81
S. LUBRicuM var. varians (Haz.) Coll. Collins, loc. cit. (1909).
Transeau 1913B, p. 87; 1913C, p. 32; 1916, p. 124: Clark, Casey
— pond and swampy stream (Apr.); Westfield — brook \\ miles
W. of (June); artesian pond (Apr.). Coles, Charleston — small
streams, pools, draintile and ditches (Jan.-May, Oct., Nov.).
S. NANUM (Dillw.) Kuetz. Collins, loc. cit., p. 300 (1909).
Transeau 1913B, p. 87: Coles, Ashmore — Polecat Creek cut-off
(Apr.).
S. STAGNATILE (Hazen) Coll. Collins, loc. cit., p. 301 (1909).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of, (Mar., Apr., Nov.). Transeau 1913B, p. 87: Coles,
Charleston — small stream, ditches and pools (Mar.). Britton:
Cook, Morton Grove — small reservoir at greenhouse, May 10,
1938, #42. Transeau: Douglas, Areola — stockyards (May). Ef-
fingham— small stream (Dec).
S. SUBSECUNDUM Kuetz. Collins, loc. cit. (1909).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (May). Britton 1940, p. 71: Cook, Glenview —
intermittent pond in swamp about 1^ miles W. Apr. 7, 1938,
#228.
S. TENUE (Ag.) Kuetz. Collins, loc. cit., p. 300 (1909).
Forbes & Richardson 1913, pp. 500, 502, 503, 506, 513, 520, 528,
531, 535: Bureau, Springvalley — Illinois River (Oct.). Transeau
1913B, p. 87: Clark, Casey — ditch (Apr.). Coles, Charleston^
pond (Apr.); campus creek and other small streams (Mar.).
Johnson & Atwell 1890, p. 19: Cook, Woodlawn— (Mar.).
Forbes & Richardson, loc. cit.: Grundy, Dresden Heights — Des
Plaines River (Aug., Sept.); Morris — Illinois River (July). La
Salle, Marseilles — Illinois River (July-Oct.). Marshall, Henry —
Illinois River. Peoria, Chillicothe — Illinois River. Putnam,
Hennepin — Illinois River. Will, Lockport — Sanitary Canal, Des
Plaines River (Sept.).
Family: PROTOCOCCACEAE
PROTOCOCCUS Agardh, 1824
P. viRiDis Ag. Smith, Freshw. Alg. U. S., p. 407. f. 277 (1933).
Johnson & Atwell 1890, p. 19: Cook, Evanston — (all months).
Family: COLEOCHAETACEAE
COLEOCHAETE de Brebisson, 1844
C. IRREGULARIS Pringsh. Collins, Tufts Coll. Stud. 2(3): 313 (1909).
Transeau 1913B, p. 88: Clark, Casey — pond (Sept.). Coles,
Charleston — ponds (May, Nov., Dec). Wesley 1928, p. 2:
Cook, Chicago — lagoon in Washington Park.
82 A CATALOG OF ILLINOIS ALGAE
C. NiTELLARUM Jost. ColHns, loc. cU. (1909).
Transeau 1913B, p. 88: Clark, Casey— pond (Aug.). Coles,
Charleston — ponds (May, Sept.).
C. ORBICULARIS Pringsh. Collins, loc. cit., p. 314 (1909).
Transeau 1913B, p. 88: Coles, Charleston— pond (Apr.), labora-
tory aquarium (Mar.). Wesley 1928, p. 2; Britton 1940, p. 71:
Cook, Chicago — lagoon in Washington Park (all months).
C. SCUTATA Breb. Collins, loc. cit. (1909).
Transeau 1913B, p. 88; 1916, p. 124: Clark, Casey— pond (Apr.).
Coles, Ashmore, Charleston, Lerna — ponds and pools (Apr.-
July, Oct.-Dec). Wesley 1928, p. 2; Britton: Cook, Chicago-
lagoon in Washington Park (all months); Glenview — small
temporary ponds in swamps about 1^ miles W. May 12, 1938,
#53, 55, 56, 58, Apr. 7, 1939, #228; Northbrook— swamp along
Landwehr Road about H miles S. of Techny Road, C. M. & St.
P. R. R. slough S. of Techny Road, small pond and swamp on
Techny Road just W. of Landwehr Road, small pond on Pfing-
sten Road about 1 mile S. of Techny Road, and small ponds and
swamps in Somme Forest Preserve, May 12, 1938, #28, 30, 60,
61, 65, 66. Transeau: Jasper, Newton— lily pond (May).
C. SOLUTA (Breb.) Pringsh. Collins, loc. cit. (1909).
Wesley 1928, p. 2: Cook, Chicago— lagoon in Washington Park
(all months).
CHAETOSPHAERIDIUM Klebahn, 1892
C. GLOBOSUM (Nordst.) Kleb. Collins, loc. cit., p. 281 (1909).
Transeau 1913B, p. 87: Coles, Charleston— pond (Dec).
C. PRiNGSHEiMii Kleb. Collins, loc. cit. (1909).
Transeau: Coles, Charleston — small stream (Feb., Mar.).
Suborder: CLADOPHORINEAE
Family: CLADOPHORACEAE
BASICLADIA Hoffmann & Tilden, 1930
B. CHELONUM (Coll.) Hofifm. & Tild. Hofifmann & Tilden, Bot. Gaz.
89:382. f. 1 (1930).
Marshall & Hague 1938, pp. Ill, 112: Cook, Argonne Forest
Preserve — Maple Lake (Aug.).
CLADOPHORA Kuetzing, 1843
C. CANALicuLARis (Roth) Kuetz. Collins, Tufts Coll. Stud. 2(3): 351
(1909).
Johnson & Atwell 1890, p. 19: Cook, Lake Michigan— (Sept.).
C. CRISPATA (Roth) Kuetz. Collins, loc. cit., p. 354 (1909).
Forbes & Richardson 1913, pp. 528, 531, 535: Bureau, Spring
CLASSIFIED CATALOG OF ILLINOIS ALGAE 83
Valley— Illinois River (Oct.). Solheim & Penfound 1928, p. 87:
Champaign, Urbana — small stream N. of (June). Transeau
1913B, p. 89: Coles, Charleston — ponds and small streams (Apr.,
Sept.-Nov.). Forbes & Richardson, loc. cit.: LaSalle, Starved
Rock — Illinois River. Richardson 1930, p. 107: Mason, Havana
— Illinois River. Forbes & Richardson, loc. cit.: Peoria — Illinois
River between Henry and Chillicothe. Purdy 1930, pp. 66, 70:
Will, Lockport — DesPlaines River (May).
C. FRACTA (Dillw.) Kuetz. Collins, loc. cit., p. 353 (1909).
Transeau 1913B, p. 89; 1916, p. 125: Clark, Casey— ponds (May,
Nov.). Coles, Charleston — ponds (all months). Field Museum:
Cook, Chicago — in shallow water in lake in Jackson Park, coll. by
F. Drouet, Sept. 25, 1938; attached to rocks in quarry pool,
92nd St. and Stony Island Ave., coll. by P. D. Voth and F.
Drouet, Sept. 24, 1938.
C. FRACTA f. FLOWTOWIANA Brand. Heering in Pascher, Suesswass.-fl.
Deutsch. 7: 50 (1921).
Cladophora flowtowiana Kuetz.
Johnson & Atwell 1890, p. 19, as C. flowtowiana: Cook, Evanston
—in "Big Ditch" (Mar.).
C. GLOMERATA (L.) Kuetz. Collins, Tufts Coll. Stud. 2(3) : 350 (1909).
Forbes 1883B, p. 84 (Effingham); 1888B, p. 537; Johnson «& At-
well 1890, p. 19 (Cook). Forbes & Richardson 1913, pp. 507, 528,
535 (Grundy, LaSalle, Marshall, Peoria). Transeau 1913B, p.
88; 1913C, p. 34; 1916, p. 125 (Clark, Coles, Edgar, Effingham,
Jasper, Lawrence). Eddy 192 7 A, p. 128 (Champaign). Purdy
1930, pp. 65, 66, 70 (Will). Richardson 1930, p. 107 (Mason).
Field Museum 1938 (Cook).
Champaign, Urbana — lake in Crystal Lake Park ("spring,
summer, fall"). Clark- — Whetstone Creek (Oct., June). Coles,
Ashmore — Polecat Creek (June, Oct.), pools (June); Charleston
— Embarrass River, Kickapoo Creek and other small streams,
ponds, pools and ditches (all months), on back of snapping turtle
(May); Mattoon — small stream (June). Cook, Chicago — on
rocks in Lake Michigan at 75th St., coll. by J. A. Steyermark,
Nov. 5, 1938; Woodlawn (Mar.). Edgar, Paris^ — reservoir (July).
Effingham, Effingham — (Sept.). Grundy, Dresden Heights —
Kankakee River. Jasper, Newton — Embarrass River (Sept.).
LaSalle, Starved Rock — Illinois River. Lawrence, Lawrenceville
— stream, small pond and ditch N.E. of (July-Sept.) ; Pinkstaff —
Bee Branch Creek and pond (June, Sept.-Nov.). Marshall,
Henry — Illinois River. Mason, Havana — Illinois River. Peoria,
Chillicothe — Illinois River. Will, Lockport — DesPlaines River
84 A CATALOG OF ILLINOIS ALGAE
C. KUETZiNGiANA Grun. Collins, loc. cit., p. 352 (1909).
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream N. of (Aug.)-
PITHOPHORA Wittrock, 1877
P. KEWENSis Wittr. Heering in Pascher, Suesswass.-fl. Deutsch. 7 : 62.
f. 56 (1921).
Transeau: Coles, Charleston — ponds (Jan., June, Dec).
P. OEDOGONIA (Mont.) Wittr. Collins, Tufts Coll. Stud. 2(3): 363
(1909).
Field Museum 1939: Cook, Chicago — floating in shallow water of
lake, 95th St. at 104th Ave., coll. by G. T. Velasquez, D. Rich-
ards and F. Drouet, Aug. 4, 1939.
P. VARIA Wille. Collins, loc. cit., p. 364 (1909).
Collins 1909, p. 364; Transeau 1913B, p. 89; 1916, p. 125: Clark,
Casey- — ponds (July, Sept., Oct.). Coles, Ashmore, Charleston —
ponds and pools (all months), laboratory aquaria (Nov.). Brit-
ton: Cook, Northbrook^ — pond and swamp in Somme Forest
Preserve, May 15, 1938, #66; Palos Park— swamp. May 15, 1938,
#983; Sag Bridge — ponds and extensive swamp, Sept. 8, 1939,
#1000, 1007. Transeau: Effingham— pond E. of (Sept.).
RHIZOCLONIUM Kuetzing, 1834
R. FONTANUM Kuetz. Collins, loc. cit., p. 330 (1909).
Collins 1909, p. 330; Transeau 1913B, p. 88; 1916, p. 125: Coles,
Ashmore^pond (June); Charleston — ponds and small stream
(all months).
R. HIEROGLYPHICUM (Ag.) Kuetz. Collins, loc. cit., p. 329 (1909).
Collins 1909, p. 329; Transeau 1913B, p. 88; 1913C, p. 34; 1916,
p. 125: Clark^ — Whetstone Creek (Oct.); Casey — ponds (July,
Sept., Oct.). Coles, Ashmore — pond, bayou and Polecat Creek
(Ju,ne, Oct.-Dec); Charleston — ponds and small streams (all
months), laboratory aquaria (Oct., Jan.), soil in greenhouse
(Jan.); Humboldt — creek (June). Field Museum: Cook, Chicago
— in water tanks in greenhouse, Univ. of Chicago, coll. by P. D.
Voth, J. M. Beal and F. Drouet, Oct. 5, 1938, and by D. Rich-
ards, Feb. 18, 1939; in lagoon in Jackson Park, coll. by D. Rich-
ards and F. Drouet, Oct. 16, 1940. Transeau: Douglas, Areola —
pond (May, July); Arthur — drainage ditch (May). Edgar, Paris
— reservoir (May, July). Jasper, Newton — lily pond (Aug.).
Lawrence, Lawrenceville — small pond 4 miles N.E. and Beaver
Ditch (Aug.); Pinkstaff — Bee Branch Creek, E. of (July, Nov.),
bayou (Dec). Moultrie, Sullivan — ponds (July). Eddy 1925, p.
146: Vermilion, Danville — strip mine pond.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 85
Order: OEDOGONIALES
Family: OEDOGONIACEAE
BULBOCHAETE Agardh, 1817
B. BREBissoNii Kuetz. Tiffany, N. Am. PL 11:7. pi. 1. f. 9 (1937).
Transeau 1913B, p. 86: Coles, Charleston— ponds (May, July).
Tiffany 1928, p. 135; 1930, p. 33; 1937, p. 7; 1939, p. 91.
B. CRASSiuscuLA Nordst. Tiffany, loc. cit., p. 10. pi. 4. f. 32, 33 (1937).
Transeau 1913B, p. 86; 1916, p. 124: Coles, Lerna— pond (Apr.,
May). Tiffany 1928, p. 143; 1930, p. 41; 1937, p. 10; 1939, p. 91.
B. CRENULATA Pringsh. Tiffany, loc. cit., p. 7. pi. 2. f. 17 (1937).
Transeau: Coles, Charleston — pond (Apr.). Johnson & Atwell
1890, p. 19: Cook— Lakeside (May). Tiffany 1928, p. 136; 1930,
p. 34; 1937, p. 7; 1939, p. 91.
B. FURBERAE Coll. Tiffany, loc. cit., p. 7. f. 12 (1937).
Britton: Cook, Glenview — swamp and temporary pond about \\
miles W., May 12, 1938, #53.
B. GiGANTEA Pringsh. Tiffany, loc. cit., p. 9. pi. 3. f. 24, 25 (1937).
Britton : Cook, Glenview — swamps and temporary ponds about
1^ miles W., May 12, 1938, #53, 56: Techny— swamp about 2
miles S.W., May 12, 1938, #60.
B. HiLOENSis (Nordst.) Tiff. Tiffany, loc. cit., p. 13. pi. 5. f. 50 (1937).
Britton: Cook, Niles — small pond about 1 mile N., May 10,
1938, #50.
B. iNsiGNis Pringsh. Tiffany, loc. cit., p. 14. f. 51 (1937).
Transeau: Montgomery, Coffeen — pond (May). Tiffany 1928,
p. 150; 1930, p. 48; 1937, p. 14; 1939, p. 91.
B. INTERMEDIA DeBary. Tiffany, loc. cit., p. 8. pi. 2. f. 14 (1937).
Transeau 1913B, p. 86: Coles, Ashmore, Charleston — ponds
(May, July). Britton: Cook, Northbrook — small pond and
swamp along Techny Road just E. and W. of Landwehr Road,
May 12, 1938, #62, 63. Transeau : Douglas, Arthur— pond (May).
Tiffany 1928, p. 137; 1930, p. 35; 1937, p. 8; 1939, p. 91.
B. MINOR A. Br. Tiffany, loc. cit., p. 13. pi. 5. f. 44 (1937).
Tiffany 1928, p. 149; 1930, p. 47; 1937, p. 13; 1939, p. 91.
B. MiRABiLis Wittr. Tiffany, loc. cit., p. 6. pi. 1. f. 4 (1937).
Tiffany 1928, p. 134; 1930, p. 32; 1937, p. 6; 1939, p. 91.
B. NANA Wittr. Tiffany, loc. cit., p. 5. f. 7 (1937).
Tiffany 1937, p. 5; 1939, p. 91.
B. NORDSTEDTii Wittr. Tiffany, loc. cit., p. 8. pi. 2. f. 20 (1937).
Transeau: Coles, Ashmore, Charleston, Lerna — ponds (Apr.,
May). Douglas, Arthur— pond (May). Montgomery, Coffeen—
pond (May). Tiffany 1928, p. 139; 1930, p. 37; 1937, p. 8; 1939,
p. 91.
86 A CATALOG OF ILLINOIS ALGAE
B. RECTANGULARis Wittr. Tiffany, loc. cit., p. 13. pi. 5. f. 53 (1937).
Transeau 1913B, p. 86: Coles, Charleston— ponds (May). Tif-
fany 1928, p. 147; 1930, p. 45; 1937, p. 13.
B. REPANDA Wittr. Tiffany, loc. cit., p. 12. pi. 6. f. 57 (1937).
Britton: Cook, Glenview — swamps and temporary ponds about
H miles W., May 12, 1938, #53, 56; Techny— swamp about 2
miles S.W., May 12, 1938, #60.
B. RETICULATA Nordst. Tiffany, loc. cit., p. 14. pi. 5. f. 52 (1937).
Bulbochaete insignis var. reticulata (Nordst.) Hirn
Transeau: Montgomery, Coffeen — pond (May). Tiffany 1928,
p. 151 ; 1930, p. 49, as B. i. var. reticulata; 1937, p. 14; 1939, p. 91.
B. SUBINTERMEDIA Elfv. Tiffany, Oedog. Monog., p. 36. pi. 2. f. 15
(1930).
Britton: Cook, Glenview — swamps and small temporary ponds
about H miles W., May 12, 1938, #56, 58; Techny— swamp
about 2 miles S.W., May 12, 1938, #60.
B. VARIANS Wittr. Tiffany, N. Am. Fl. 11: 13. pi. 5. f. 47 (1937).
Transeau 1913B, p. 86: Clark, Casey— pond (July). Coles,
Charleston, Lerna— ponds (July, May). Tiffany 1928, p. 147;
1930, p. 45; 1937, p. 13.
B. VARIANS var. hawaiense Nordst. Tiffany, loc. cit., f. 49 (1937).
Transeau : Lawrence, Lawrenceville — gravel pit (May). Tiffany
1928, p. 148; 1930, p. 46; 1937, p. 13; 1939, p. 91.
B. VARIANS var. subsimplex (Wittr.) Hirn. Tiffany, loc. cit., f. 48
(1937).
Bulbochaete subsimplex Wittr.
Transeau 1913B, p. 86: Coles, Ashmore— pond (May); Charles-
ton—pond (Oct.). Johnson & Atwell 1890, p. 19, as B. subsim-
plex: Cook, Woodlawn— (Mar.). Transeau : Montgomery, Coffeen
—pond (June). Tiffany 1928, p. 147; 1930, p. 45; 1937, p. 13;
1939, p. 91.
OEDOGONIUM Link, 1820
O. ACMANDRIUM Elfv. Tiffany, loc. cit., p. 48. pi. 19. f. 279 (1937).
Transeau 1913B, p. 82; Collins 1918, p. 65: Coles, Charleston-
ponds ("spring"), laboratory aquaria (Feb.). Britton: Cook,
Northbrook — small pond and swamp along Techny Road just
E. of Landwehr Road, May 12, 1938, #62. Tiffany 1930, p. 103;
1937, p. 48; 1939, p. 90.
O. ACMANDRIUM var. STiCTOSPERMUM Skuja. Skuja, Acta Horti Bot.
Univ. Latv. 4: 20 (1930).
Britton 1942, p. 58: Cook, Glenview— swamp and intermittent
pond about \\ miles W. on Central Road, May 12, 1938, #56.
O. ACROSPORUM DeBary. Tiffany, N. Am. Fl. 11: 72. pi. 26. f. 410
(1937).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 87.
Oedogonium acrosporum f. connectens Wittr.
Transeau 1913B, p. 82, as 0. a. f. connectens: Coles, Charleston
—pond (May). Tiffany 1930, p. 157; 1937, p. 72; 1939, p. 90.
O. AMERICANUM Trans. Tiffany, loc. ciL, p. 45. pi. 18. f. 258-260
(1937).
Collins 1918, p. 70; Tiffany 1930, p. 97; 1937, p. 45; Transeau:
Coles, Charleston — pond (May).
O. AMPLUM Magnus & Wille. Tiffany, loc. ciL, p. 39. pi. 14. f. 182, 183
(1937).
Oedogonium crassum var. amplum (M. & W.) Hirn
Transeau 1913B, p. 82; 1913C, p. 34; 1916, p. 124, as 0. c. var.
amplum: Clark, Casey — ^pond (Sept.). Coles, Ashmore, Charles-
ton— ponds (May-Nov.). Jasper, Bogota- — creek 6 miles N.W.
(Aug.); Newton — pond (Aug.). Moultrie, Sullivan — cut-off of
Kaskaskia River (July). Richland, Olney— small stream (Aug.).
Tiffany 1930, p. 88, as 0. c. var. amplum; 1937, p. 39; 1939, p. 90.
O. ANGUSTUM (Hirn) Tiff., Tiffany, loc. cit., pi. 13. f. 176-178 (1937).
Oedogonium grande var. angustum Hirn
Transeau: Coles, Ashmore, Charleston — ponds and small stream
(May-July, Oct.). Montgomery, Coffeen — pond (May). Tiffany
1930, p. 86, as 0. g. var. angustum; 1937, p. 39; 1939, p. 90.
O. ASTER Wittr. Tiffany, loc. cit., p. 56. pi. 30. f. 486 (1937).
Transeau 1913B, p. 82: Coles, Charleston— ponds and pools
(Apr., May). Cumberland, Greenup — ^pond and ditch (July,
Nov.). Montgomery, Coffeen — pond (May). Tiffany 1930, p.
120; 1937, p. 56; 1939, p. 90.
O. BOHEMicuM Hirn. Tiffany, ioc. cit., p. 76, pi. 20. f. 305 (1937).
Transeau 1913B, p. 82: Coles, Charleston — ponds (May, July).
Tiffany 1930, p. 128; 1937, p. 64; 1939, p. 90.
O. BORisiANUM (LeCl.) Wittr. Tiffany, loc. cit., p. 64. pi. ZZ. f. 527
(1937).
Tiffany 1937, p. 76; 1939, p. 90.
O. Boscii Wittr. Tiffany, loc. cit., p. 41. pi. 16. f. 214, 215 (1937).
Transeau 1913B, p. 82: Clark, Casey— pond (May). Coles,
Charleston— ponds (May, Oct.). Tiffany 1930, p. 91; 1937, p. 41;
1939, p. 90.
O. BRAUNii Kuetz. Tiffany, loc. cit., p. 59. pi. 32. f. 505 (1937).
Transeau 1913B, p. 82: Cumberland, Greenup — ditch (Nov.).
Montgomery, Coffeen— pond (May). Tiffany 1930, p. 125; 1937,
p. 59; 1939, p. 90.
O. CAPiLLARE (L.) Kuetz. Tiffany, loc. cit., p. 35. pi. 11. f. 151, 152
(1937).
. Transeau: Coles, Charleston — pond (May).
O. CAPILLIFORME Kuctz. Tiffany, loc. cit., p. 37. pi. 12. f. 157, 158
(1937).
88 A CATALOG OF ILLINOIS ALGAE
Transeau 1916, p. 124: Coles, Charleston — ponds (June, Sept.,
Nov.). Johnson & Atwell 1890, p. 19: Cook, Evanston— in "Big
Ditch" (June). Tiffany 1930, p. 81; 1937, p. 37; 1939, p. 90.
O. CAPITELLATUM Wittr. Tiffany, loc. cit., p. 76. pi. 20. f. 306, 307
(1937).
Tiffany 1930, p. 104; 1937, p. 76; 1939, p. 90.
O. CARDIACUM (Hass.) Wittr. Tiffany, loc. cit., p. 31. pi. 9. f. 108
(1937).
Transeau 1913B, p. 82: Clark, Casey — pond and drain (May).
Coles, Charleston — ^ponds. Cumberland, Greenup — pond (May).
Jasper, Newton— pond. Tiffany 1930, p. 70; 1937, p. 31; 1939,
p. 90.
O. CARDIACUM var. CARBONicuM Wittr. Tiffany, loc. cit., f. 121 (1937).
Transeau 1913B, p. 82: Clark, Casey — pond (Apr., Nov.). Coles,
Charleston, Lerna — ^ponds (Apr., May). Douglas, Arthur — pond
(May).. Jasper, Newton— pond (May). Tiffany 1930, p. 71;
1937, p. 31.
O. CONCATENATUM (Hass.) Wittr. Tiffany, loc. cit., p. 64. pi. 34. f. 538
(1937).
Transeau 1913B, p. 82: Coles, Charleston — pond (May). Brit-
ton: Cook, Glenview — pond and swamp about 1| miles W.,
May 12, 1938, #53; Niles— small pond about 1 mile N., May 10,
1938, #50. Tiffany 1930, p. 136; 1937, p. 64; 1939, p. 90.
O. CONCATENATUM var. SUPERORNATUM Tiff. Tiffany, loc. cit. (1937).
Britton 1942, p. 58: Cook, Glenview — small ponds, intermittent
streams, and swamps about 1^-2 miles W., May 12, 1938, #56,
58; Northbrook — swamp on Landwehr Road about 3 miles
S.W., small ponds and swamps just E. and W. of Landwehr
Road at Techny Road, May 12, 1938, #60, 62, 63; Tech ny— pond
about 2 miles S.W., May 12, 1938, #64. Lake, Everett— small
pond about 1 mile S., May 15, 1938, #71.
O. CRASSiuscuLUM Wittr. Tiffany, loc. cit., p. 66. f. 352 (1937).
Johnson & Atwell 1890, p. 19: Cook— "Big Woods" (Apr.).
O. CRASSIUSCULUM var. cataractum (Wolle) Tiff. Tiffany, loc. cit., f.
534 (1937).
Britton : Lake, Everett — small pond about 1 mile S., May 15,
1938, #71.
O. CRENULATOCOSTATUM Wittr. Tiffany, loc. cit., p. 42. pi. 15. f. 204-
206 (1937).
Transeau 1913B, p. 83: Clark, Casey — pond (Oct.). Coles,
Charleston — in water and on crayfish in ponds (July, Oct.);
Lerna — pond (Apr.). Jasper, Wheeler^ — pond (Aug.). Tiffany
1930, p. 92; 1937, p. 42; 1939, p. 91.
CLASSIFIED CATALOG OF ILLINOIS ALGAE • 89
O. CRENULATOCOSTATUM var. CYLINDRICUM (Him) Tiff. Tiffany, loc.
ciL, f. 207 (1937).
Transeau 1913B, p. 83: Clark, Casey — pond (Oct.). Cumberland,
Greenup — ditch (Nov.). Montgomery, Coffeen — pond (June).
Moultrie, Sullivan — artificial pond (July). Tiffany 1930, p. 93;
1937, p. 42.
O. CRISPUM (Hass.) Wittr. Tiffany, loc. cit., p. 52. pi. 22. f. 336, 337
(1937).
Transeau 1913B, p. 83: Coles, Ashmore — pond (May); Charles-
ton, Lerna — ponds (Apr.-June). Britton: Cook, Glenview —
temporary ponds and swamps about 1| miles W., May 12, 1938,
#53, 56; Niles— small pond about 1 mile N., May 10, 1938, #50;
Northbrook — small ponds and swamps at Somme Forest Pre-
serve, May 15, 1938, May 8, 1939, #65, 67, 68, 240, 241, small
ponds and swamps on Techny Road just E. and W. of Landwehr
Road, May 12, 1938, June 27, 1938, #62, 63, 109; Park Ridge-
gravel pit pond and swamp, May 10, 1938, #47; Techny —
intermittent slough along C. & N. R. R., May 12, 1938, #61;
small pond about 2 miles S.W., June 27, 1938, #108. Transeau:
Douglas, Tuscola — pond (May). Britton : Lake, Everett — small
pond about 1 mile S., May 15, 1938, #71. Transeau : Lawrence,
Lawrenceville — gravel pit (Apr., May). Montgomery, Coffeen —
pond (May). Tiffany 1930, p. 113; 1937, p. 52; 1939, p. 91.
O. CRISPUM var. gracilescens Wittr. Tiffany, loc. cit., p. 53. f. 338
(1937).
Transeau: Coles, Charleston, Dorans — pond and pools (Apr.-
June). Montgomery, Coffeen — ponds (May). Tiffany 1930, p.
114; 1937, p. 53.
O. CROASDALEAE Jao. Tiffany, loc. cit., p. 69. pi. 26. f. 416-419 (1937).
Britton 1942, p. 58: Cook, Glenview — small intermittent ponds
and swamps about 1^ miles W., May 12, 1938, #53, 56.
O. CRYPTOPORUM Wittr. Tiffany, loc. cit., p. 27. pi. 8. f. 104 (1937).
Transeau: Coles, Charleston — ponds. Johnson & Atwell 1890,
p. 19: Cook— ditches (May). Tiffany 1937, p. 27; 1939, p. 91.
O. CURVUM Pringsh. Tiffany, loc. cit., f. 89, 90 (1937).
Tiffany 1937, p. 29; 1939, p. 91.
O. CYATHIGERUM Wittr. Tiffany, loc. cit., p. 62. pi. 35. f. 541, 542
(1937).
Transeau 1913B, p. 83: Coles, Charleston, Lerna — ponds (May,
June). Jasper, Newton, Wheeler — ponds (May, Aug.). Mont-
gomery, Coffeen— pond (May). Tiffany 1930, p. 133; 1937, p. 62;
1939, p. 91.
O. DECIPIENS Wittr. Tiffany, loc. cit., p. 68. pi. 24. f. 383 (1937).
Transeau: Montgomery, Coffeen — pond (May).
90 • A CATALOG OF ILLINOIS ALGAE
O. DECIPIENS var. AFRICANUM Tiff. Tiffany, loc. cit., f. 386 (1937).
Britton: Cook, Northbrook — small intermittent pond and
swamp at Somme Forest Preserve, May 15, 1938, #66.
O. DECIPIENS var. dissimile (Hirn) Tiff. Tiffany, loc. cit., f. 384, 385
(1937).
Tiffany 1937, p. 68.
O. DiVERSUM (Hirn) Tiff. Tiffany, loc. cit., p. 37. pi. 12. f. 16o, 167
(1937).
Britton: Lake, Everett- — small pond about 1 mile S., May 15,
1938, #71.
O. ECHiNOSPERMUM A. Br. Tiffany, loc. cit., p. 57. pi. 31. f. 487 (1937).
Transeau 1913B, p. 83; 1916, p. 124: Clark, Oilfield— ponds
(Apr., May). Coles, Ashmore, Charleston, Lerna — ponds and
ditch pools (Apr., May). Johnson & Atwell 1890, p. 19: Cook,
Lakeside— (May). Tiffany 1930, p. 121; 1937, p. 57; 1939, p. 91.
O. EPiPHYTicuM Trans. & Tiff. Tiffany, loc. cit., p. 50. pi. 21. f. 319,
320 (1937).
Oedogonium pisanum var. gracilis Trans. & Tiff.
Transeau & Tiffany 1919, p. 241, as 0. p. var. gracilis; Tiffany
1930, p. 110, as 0. p. var. gracilis; 1937, p. 50; 1939, p. 91:
Montgomery, Coffeen — pond (May).
O. FLAVESCENS Wittr. Tiffany, loc. cit., p. 59. pi. 32. f. 517 (1937).
Britton: Cook, Northbrook — small pond at Somme Forest Pre-
serve, May 15, 1938, #65; Techny — small pond about 2 miles
S.W., May 12, 1938, #60.
O. FRAGILE Wittr. Tiffany, loc. cit., p. 2>Z. pi. 10. f. 132 (1937).
Transeau: Coles, Charleston — pond (May). Tiffany 1930, p. 75;
1937, p. d>2>; 1939, p. 91.
O. FRAGILE var. ABYSSINICUM Hirn. Tiffany, Oedog. Monog., p. 75
(1930).
Britton 1942, p. 58: Cook, Glenview — temporary pond in swamp
about \\ miles W., May 12, 1938, #56; Northbrook — small pond
in Somme Forest Preserve, May 15, 1938, #68; small pond and
swamp on Techny Road just E. of Landwehr Road, May 12,
1938, #62; Techny— swamp about 2 miles S.W., May 12, 1938,
#60.
O. FRANKLINIANUM Wittr. Tiffany, N. Am. Fl. 11: 31. pi. 8. f. 84
(1937).
Transeau 1913B, p. 83: Coles, Charleston — ponds (June, July,
Oct.). Cumberland, Greenup — pond (July). Tiffany 1930, p. 71;
1937, p. 31; 1939, p. 91.
O. GLOBOSUM Nordst. Tiffany, loc. cit., p. 32. pi. 9. f. 120 (1937).
Transeau 1913B, p. 83: Coles, Charleston, Lerna — ponds (Oct.,
May). Jasper, Newton— pond (May). Tiffany 1930, p. 74; 1937,
p. 32; 1939, p. 91.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 91
O. GRACiLius (Wittr.) Tiff. Tiffany, loc. ciL, p. 36. pi. 11. f. 143, 144
(1937).
Oedogonium plagiostomum var. gracilius Wittr,
Transeau 1913B, p. 84, as 0. p. var. gracilius: Coles, Charleston
— ponds (Apr.-June). Jasper, Newton — pond (May). Moultrie,
Sullivan — cut-off of Kaskaskia River (July). Tiffany 1930, p. 81,
as 0. p. var. gracilius; 1937, p. 36; 1939, p. 91.
O. GRACiLLiMUM Wittr. & Lund. Tiffany, loc. cit., p. 54. pi. 22. f. 353
(1937).
Transeau 1913B, p. 83: Coles, Ashmore, Charleston, Dorans,
Lerna — ponds and pools (Apr.-June), laboratory aquaria (Feb.,
Mar.). Montgomery, Coffeen— Mill Pond (May). Tiffany 1930,
p. 116; 1937, p. 54; 1939, p. 91.
O. GRANDE Kuetz. Tiffany, loc. cit., p. 38. pi. 13. f. Xll-lU (1937).
Transeau 1913B, p. 83; 1913C, p. 34: Clark, Casey— pond
(Nov.). Coles, Ashmore — ^ Polecat Creek, ponds and pools (May-
July, Oct.); Charleston — Kickapoo Creek and other small
streams, ponds, ditches (all months) ; Humboldt, Lerna, Loxa —
creeks and ponds (May-July). Ohashi 1930, p. 177: Cook, Chi-
cago— pond in Palos Park. Transeau: Cumberland, Greenup —
pond and ditch (Apr., Nov.). Effingham, Effingham — roadside
pool (May). Jasper, Bogota — creek (Aug.); Newton — pond
(May, Aug.) ; Wheeler — pond (Sept.). Lawrence, Lawrenceville—
small pond 4 miles N.E., and gravel pit (Apr., Aug.) ; Pinkstaff —
Bee Branch Creek (Nov.). Montgomery, Coffeen — ponds (May).
Moultrie, Sullivan — artificial pond (July). Tiffany 1930, p. 85;
1937, p. 38; 1939, p. 91.
O. GRANDE var. AEQUATORIALE Wittr. Tiffany, loc. cit., f. 175 (1937).
Transeau: Cumberland, Greenup — pond (May).
O. HOWARDii G. West. Tiffany, loc. cit., p. 49. pi. 20. f. 290, 291 (1937).
Oedogonium howardii var. minus Tiffany
Tiffany 1927, p. 204; 1930, p. 102, as 0. h. var. minus; 1937,
p. 49; 1939, p. 91: Lawrence. Transeau: Moultrie, Sullivan —
cut-off of Kaskaskia River (July).
O. HYSTRiciNUM Trans. & Tiff. Tiffany, loc. cit., p. 56. pi. 30. f. 481,
482 (1937).
Transeau & Tiffany 1919, p. 240; Tiffany 1930, p. 120; 1937,
p. 56; 1939, p. 91: Coles, Charleston — temporary pond (May).
Britton: Cook, Techny — small pond about 1| miles S.W., May
12, 1938, #64.
O. IDIOANDROSPORUM (Nordst. & Wittr.) Tiff. Tiffany, loc. cit., p. 66.
pi. 33. f. 523, 524 (1937).
Oedogonium crassiusculum var. idioandrosporum Nordst. & Wittr.
Transeau 1913B, p. 82, as 0. c. var. idioandrosporum: Clark,
Casey — pond (Oct.). Coles, Charleston, Lerna — ponds (May,
92 A CATALOG OF ILLINOIS ALGAE
June). Britton: Cook, Northbrook— small pond at Somme For-
est Preserve, May 8, 1939, #247. Transeau: Jasper, Newton —
pond. Lawrence, Lawrenceville — gravel pit (Apr.). Tiffany 1930,
p. 130, as 0. c. var. idioandrosporum; 1937, p. 66; 1939, p. 91.
O. ILLINOISENSE Trans. Tiffany, loc. ciL, p. 58. pi. 31. f. 494-496
(1937).
Transeau 1914, p. 299: Coles, Lerna— pond (May). Montgomery,
Coffeen— (May). Collins 1918, p. 67. Tiffany 1930, p. 123; 1937,
p. 58; 1939, p. 91.
O. INTERMEDIUM Wittr. Tiffany, loc. cit., p. 32. pi. 9. f. 119 (1937).
Transeau 1913B, p. 83: Coles, Ashmore, Charleston, Lerna —
ponds and pools (Apr.-July). Jasper, Wheeler — pond (Aug.).
Collins 1918, p. 64. Tiffany 1930, p. 72; 1937, p. 32; 1939, p. 91.
O. IRREGULARE Wittr. Tiffany, loc. cit., p. 65. pi. 2>2>. f. 521 (1937).
Transeau 1913B, p. 84: Coles, Charleston — pond (Sept.). Tiffany
1930, p. 131; 1937, p. 65; 1939, p. 91.
O. KiRCHNERi Wittr. Tiffany, Oedog. Monog., p. 116. pi. 38. f. 371
(1930).
Britton 1942, p. 59: Cook, Northbrook — pond and swamp at
Somme Forest Preserve, May 15, 1938, #66; Techny — small pond
along Techny Road just W. of Landwehr Road, May 12, 1938,
#63.
O. LAEVE Wittr. Tiffany, N. Am. Fl. 11: 28. pi. 8. f. 99 (1937).
Transeau: Coles, Charleston — pool (Apr.). Tiffany 1930, p. 65;
1937, p. 28; 1939, p. 91.
O. LEMMERMANii Tiff. Tiffany, loc. cit., p. 31. pi. 9. f. 113 (1937).
Transeau: Douglas, Arthur — pond (May).
O. LONGIARTICULATUM (Hansg.) Tiff. Tiffany, loc. cit., p. 42. pi. 16. f.
226, 227 (1937).
Transeau: Moultrie, Sullivan^ — artificial pond (July).
O. LONGicoLLE Nordst. Tiff. Tiffany, loc. cit., p. 67. pi. 24. f. 388, 389
(1937).
Transeau: Moultrie, Sullivan — artificial pond (July).
O. MACRANDRIUM Wittr. Tiffany, loc. cit., p. 70. pi. 25. f. 396 (1937).
Transeau 1916, p. 124: Coles, Ashmore — pond (Nov.).
O. MACRANDRIUM var. AEMULANS Him. Tiffany, loc. cit., p. 71. f. 397
(1937).
Transeau 1913B, p. 84: Coles, Ashmore, Charleston — ponds
(Oct.). Britton: Cook, Glenview — swamp and small pond about
U miles W., May 12, 1938, #58. Transeau: Jasper, Wheeler-
pond (Sept.). Montgomery, Coffeen — pond (May).
O. MACRANDRIUM var. PROPINQUUM (Wittr.) Hirn. Tiffany, loc. cit., f.
401 (1937).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 93
Oedogonium propinquum Wittr.
Transeau 1913B, p. 85; Collins 1918, p. 68, as 0. propinquum:
Coles, Ashmore, Charleston — ponds (May, Oct.)- Tiffany 1930,
p. 152; 1937, p. 71; 1939, p. 91.
O. MACROSPERMUM W. & G. S. West. Tififany, loc. cit., p. 68. pi. 24.
f. 391, 392 (1937).
Britton: Cook, Northbrook — pond and swamp in Somme Forest
Preserve, May 15, 1938, #66.
O. MAGNUSii Wittr. Tififany, loc. cit., p. 28. pi. 8. f. 86 (1937).
Transeau 1913B, p. 84: Coles, Ashmore, Charleston, Dorans —
ponds and pools (Apr., May). Tififany 1930, p. 68; 1937, p. 28;
1939, p. 91.
O. MAjus (Hansg.) Tifif. Tififany, loc. cit., p. 38. pi. 13. f. 170, 171
(1937).
Oedogonium grande var. majus Hansg. ; 0. grande f . rohustum Hirn
Transeau: Coles, Charleston — ponds (June). Moultrie, Sullivan
— artificial pond (Aug.). Collins 1918, p. 63, as 0. g. i. rohustum;
Tififany 1930, p. 86, as 0. g. var. majus; 1937, p. 38; 1939, p. 91.
O. MITRATUM HiVn. Tififany, loc. cit., p. 49. pi. 19. f. 270, 271 (1937).
Transeau: Coles, Charleston — small stream (July). Tififany 1930,
p. 105; 1937, p. 49; 1939, p. 91.
O. MONILE Berk. & Harv. Tififany, loc. cit., p. 69. pi. 25. f. 393, 394
(1937).
Transeau: Coles, Lerna — pond (Apr.).
O. MULTispoRUM H. C. Wood. Tififany, loc. cit., p. 65. pi. ZZ. f. 519, 520
(1937).
Collins 1912, p. 86; Transeau 1913B, p. 84; 1916, p. 124: Clark,
Casey — pond (May). Coles, Ashmore, Charleston, Wrightsville
— ^ponds and small streams (Apr.-Nov.). Cumberland, Greenup
— pond (Apr.). Douglas, Tuscola — pond (May). Effingham,
Effingham- — pond (Dec). Montgomery, Cofifeen — pond (May).
Moultrie, Sullivan — cut-ofif of Kaskaskia River (July). Tififany
1930, p. 131; 1937, p. 65; 1939, p. 91.
O. OBLONGELLUM Kirch. Tififany, loc. cit., p. 54. pi. 22. f. 347 (1937).
Britton: Cook, Park Ridge^ — small shallow pond at Park Ridge
Country Club, May 10, 1938, #46. Transeau: Douglas, Areola —
pond (July). Britton: Kankakee, Kankakee — slough along R. 49
about 5 miles N., Apr. 18, 1938, #5. Tiffany 1930, p. 116; 1937,
p. 54; 1939, p. 91.
O. OBLONGUM Wittr. Tififany, loc. cit., f. 343 (1937).
Transeau 1913B, p. 84; Collins 1918, p. 66: Coles, Charleston —
pool (Oct.); Lerna— pond (Apr.). Tififany 1930, p. 117; 1937,
p. 54; 1939, p. 91.
94 A CATALOG OF ILLINOIS ALGAE
O, OBLONGUM var. MAjus Nordst. Tiffany, loc. cit., f. 344 (1937),
Transeau: Coles, Dorans, Lerna — (Apr., May).
O. OBOVIFORME Wittr. Tiffany, loc. cit., p. 38. pi. 13. f. 168, 169 (1937).
Transeau: Coles, Lerna — pond (Apr.).
O. OBSOLETUM Wittr. Tiffany, loc. cit., p. 30. pi. 9. f. 117 (1937).
Johnson & Atwell 1890, p. 19: Cook, Evanston— "Big Woods"
(Apr.).
O. OBTRUNCATUM Wittr. Tiffany, loc. cit., p. 27. pi. 25. f. 408 (1937).
Transeau 1913B, p. 84; 1913C, p. 34; 1916, p. 124: Coles,
Charleston— pond (Oct.). Tiffany 1930, p. 155; 1937, p. 72;
1939, p. 91.
O. occiDENTALE (Hirn) Tiff. Tiffany, loc. cit., p. 41. pi. 16. f. 211-213
(1937).
Transeau: Clark, Casey — pond (Apr., May). Coles, Lerna — pond
(May).
O. OUCHITANUM Taft. Tiffany, loc. cit., p. 76. pi. 20. f. 303, 304 (1937).
Tiffany 1939, p. 91.
O. PALUDOSUM (Hass.) Wittr. Tiffany, loc. cit., p. 41. pi. 15. f. 208
(1937).
Transeau 1913B, p. 84: Clay — pond (May). Coles, Lerna— ponds
(Apr., May). Tiffany 1930, p. 90; 1937, p. 41; 1939, p. 91.
O. PALUDOSUM var. parvisporum Hirn. Tiffany, loc. cit., f. 209 (1937).
Transeau 1913B, p. 84; Collins 1918, p. 63: Coles, Charleston,
Dorans — ponds, pools and ditches (Apr., May, Nov.). Britton:
Cook, Glenview — swamp and small pond about 1| miles W.,
May 12, 1938, #58; Northbrook- — small pond at Somme Forest
Preserve, May 15, 1938, #68. Transeau: Douglas, Arthur — pool
and pond (May). Lawrence, Lawrenceville — gravel pit (Apr.).
Montgomery, Coffeen— pond (May). Tiffany 1930, p. 90; 1937,
p. 41.
O. paucocostatum Trans. Tiffany, loc. cit., p. 46. pi. 19. f. 263, 264
(1937).
Transeau 1914, p. 300; Collins 1918, p. 66: Clark, Casey— pond
(July). Coles, Charleston— pond (Sept., Oct.). Tiffany 1930, p.
98; 1937, p. 46; 1939, p. 91.
O. PAULENSE Nordst. & Hirn. Tiffany, loc. cit., p. 40. pi. 15. f. 197, 198
(1937).
Britton : Cook, Northbrook— ponds and swamp at Somme Forest
Preserve, May 15, 1938, #65, 66.
O. PERFECTUM (Hirn) Tiff. Tiffany, loc. cit., p. 62. pi. 35. f. 547, 548
(1937).
Transeau: Coles, Charleston — pond (Mar.).
O. PISANUM Wittr. Tiffany, loc. cit., p. 50. pi. 21. f. 323, 324 (1937).
Transeau: Montgomery, Coffeen — pond (May). Tiffany 1930,
p. 109; 1937, p. 50; 1939, p. 91.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 95
O. PLAGiosTOMUM Wittr. Tiffany, loc. cit., p. 36. pi. 11. f. 141, 142
(1937).
Transeau 1913B, p. 84: Coles, Charleston — ponds (Oct.). Tiffany
1930, p. 80; 1937, p. 36; 1939, p. 91.
O. PLUSIOSPORUM Wittr. Tiffany, loc. cit., p. 30. pi. 8. f. 97, 98 (1937).
Transeau: Coles, Ashmore — ^ponds (Apr.).
O. PRATENSE Trans. Tiffany, loc. cit., p. 49. pi. 21. f. 325, 326 (1937).
Transeau 1914, p. 297; Collins 1918, p. 66: Clark, Casey— pond
(July). Coles, Charleston, Lerna — ponds and pools (Mar.-May,
Nov.). Britton: Cook, Northbrook — small pond at Somme For-
est Preserve, May 15, 1938, #68. Tiffany 1930, p. 102; 1937,
p. 49; 1939, p. 91.
O. PRATICOLUM Trans. Tiffany, loc. cit., p. 81. pi. 29. f. 461-463 (1937).
Transeau 1914, p. 298; 1916, p. 124; Collins 1918, p. 68: Clark,
Casey — ponds (July). Coles, Charleston — ponds (June-Nov.).
Tiffany 1930, p. 156; 1937, p. 81; 1939, p. 91.
O. PRiNGSHEiMii Cram. Tiffany, loc. cit., p. 50. pi. 21. f. 312, 313
(1937).
Transeau: Coles, Charleston — pond and pool (May, June, Oct.).
O. PRINGSHEIMII var. NORDSTEDTii (Wittr.) Wittr. Tiffany, loc. cit., f.
314-317 (1937).
Transeau 1913B, p. 85: Clark, Casey— pond (Nov.). Coles,
Charleston — ponds, pools and small streams (May, July, Oct.).
Douglas, Arthur— pond (Aug.). Tiffany 1930, p. 108; 1937, p. 50.
O. PSEUDO-Boscii Hirn. Tiffany, loc. cit., p. Z^. pi. 10. f. 130 (1937).
Transeau 1913B, p. 85: Coles, Charleston — prairie ponds and
pools (Apr., May). Tiffany 1930, p. 76; 1937, p. ZZ; 1939, p. 91.
O. PUNCTATOSTRIATUM DeBary. Tiffany, loc. cit., p. 27. pi. 23. f. 364,
365 (1937).
Transeau: Coles, Charleston— lake (Aug.). Tiffany 1930, p. 104;
1937, p. 29; 1939, p. 91.
O. PUNCTATUM Wittr. Tiffany, loc. cit., p. 44. pi. 17. f. 244, 245 (1937).
Transeau: Clark, Casey — pond (Oct.). Jasper, Wheeler — pond
(Aug.).
O. PUNGENS Hirn. Tiffany, loc. cit., p. 57. pi. 30. f. 483, 484 (1937).
Transeau 1913B, p. 85: Coles, Charleston, Lerna — ponds (May).
Tiffany 1930, p. 122; 1937, p. 57; 1939, p. 91.
O. PUSILLUM Kirch. Tiffany, loc. cit., p. 82. pi. 19. f. 287 (1937).
Collins 1912, p. 88; Transeau 1913B, p. 85: Coles, Charleston-
ponds (May-July). Cumberland, Greenup — 5 miles N. in Em-
barrass River (Sept.). Tiffany 1930, p. 161; 1937, p. 82; 1939,
p. 91.
O. RivULARE A. Br. Tiffany, loc. cit., p. 37. pi. 11. f. 139, 140 (1937).
Transeau: Coles, Ashmore — pond (Apr.).
96 A CATALOG OF ILLINOIS ALGAE
O. ROTHii Pringsh. Tiffany, loc. ciL, p. 67. pi. 24. f. 380 (1937).
Britton : Kankakee, Kankakee — 5 miles N. in slough along Route
49, Apr. 18, 1938, #5.
O. RUFESCENS Wittr. Tififany, loc. ciL, p. 28. pi. 8. f. 100-102 (1937).
Transeau 1913B, p. 85; 1913C, p. Z2>; 1916, p. 124: Clark, Casey,
Oilfield — ponds (Apr., May). Coles, Ashmore, Charleston, Lerna
— ponds, pools, ditches and small streams (Mar.-May, Nov.).
Douglas, Arthur — pond and pool (May). Effingham, Effingham
—pond (Dec). Tiffany 1930, p. 66; 1937, p. 28.
O. RUFESCENS var. EXIGUUM (Elfv.) Tiff. Tiffany, loc. cit., f. 105
(1937).
Transeau 1913B, p. 85; Collins 1918, p. 62: Coles, Ashmore,
Charleston — ponds and pools (Apr., May). Lawrence, Lawrence-
ville— gravel pit (Apr.). Tiffany 1930, p. 66; 1937, p. 28; 1939,
p. 91.
O. RUFESCENS var. LUNDELLii (Wittr.) Tiff. Tiffany, loc. cit., f. 106,
107 (1937).
Transeau: Coles, Ashmore, Charleston — ponds (Apr., May).
O. RUGULOSUM Nordst. Tiffany, loc. cit., p. 68, pi. 24. f. 376, 377
(1937).
Transeau: Coles, Ashmore — ponds and pools (May, June).
Tiffany 1937, p. 68; 1939, p. 91.
O. RUGULOSUM var. minutum (Hansg.) Tiff. Tiffany, loc. cit., p. 69.
pi. 24. f. 378 (1937).
Transeau 1913B, p. 85: Coles, Ashmore — pond (May, Oct.).
Moultrie, Sullivan^artificial pond (July). Tiffany 1930, p. 149;
1937, p. 69.
O. SIMPLEX Hirn. Tiffany, Oedog. Monog., p. 111. pi. 26. f. 340 (1930).
Transeau: Jasper, Wheeler — pond (Sept.).
O. sociALE Wittr. Tiffany, N. Am. Fl. 11: 28. pi. 8. f. 95, 96 (1937).
Collins 1912, p. 84; Transeau 1913B, p. 85: Clark, Casey— ponds
(Apr., May). Coles, Charleston, Wrightsville — ^ponds, pools, and
creek (Apr., May). Cumberland, Jewett — pond (May). Tiffany
1930, p. 67; 1937, p. 28; 1939, p. 91.
O. SUBPLENUM Tiff. Tiffany, loc. cit., p. 77. pi. 27. f. 428, 429 (1937).
Oedogonium areschoughii var. americaniim Tiffany
Tiffany 1927, p. 205 ; 1930, p. 140, as 0. a. var. americanum; 1937,
p. 77; 1939, p. 91: Jackson, DeSoto— small lake (May).
O. SUECICUM Wittr. Tiffany, loc. cit., p. 29. pi. 8. f. 93 (1937).
Transeau 1913B, p. 85; 1916, p. 124: Clark, Casey— pond (May).
Coles, Charleston, Lerna— ponds (May, June). Lawrence,
Lawrenceville— gravel pit (Apr.). Tiffany 1930, p. 68; 1937,
p. 29; 1939, p. 91.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 97
O. TAPHROSPORUM Nordst. & Hirn. Tiffany, loc. cit., p. 45. pi. 17. f.
235, 236 (1937).
Transeau 1913B, p. 86: Clark, Casey — pond (July). Coles,
Charleston— pond (July). Tiffany 1930, p. 97; 1937, p. 45; 1939,
p. 91.
O. TENTORIALE Nordst. & Him. Tiffany, loc. cit., p. 73. pi. 26. f. 415
(1937).
Transeau 1913B, p. 86; Collins 1918, p. 68: Coles, Charleston-
ponds (Oct.). Tiffany 1930, p. 157; 1937, p. 73; 1939, p. 91.
O. UNDULATUM (Breb.) A. Br. Tiffany, loc. cit., p. 73. pi. 24. f. 373
(1937).
Transeau: Coles, Charleston — lake (Aug.). Johnson & Atwell
1890, p. 19: Cook, Lakeside— (May).
O. UPSALIENSE Wittr. Tiffany, loc. cit., p. 34. pi. 10. f. 133 (1937).
Transeau: Coles, Lerna — pond (Apr.). Britton: Cook, North-
brook — small pond along Techny Road just W. of Landwehr
Road, May 12, 1938, #63. Tiffany 1930, p. 77; 1937, p. 34; 1939,
p. 91.
O. VARIANS Wittr. & Lund. Tiffany, loc. cit., p. 30. pi. 9. f. 114 (1937).
Transeau 1916, p. 124: Coles, Charleston — pond (June, July).
Britton: Cook, Niles — small pond about 1 mile N., May 10, 1938,
#50; Northbrook — small pond along Techny Road just W. of
Landwehr Road, May 12, 1938, #63; Palos Park— swamp, July
13, 1939, #545. Tiffany 1930, p. 69; 1937, p. 30; 1939, p. 91.
O. VAUCHERii A. Br. Tiffany, loc. cit., p. ZZ. pi. 10. f. 124, 125 (1937).
Transeau 1913B, p. 86; 1913C, p. 2>Z; 1916, p. 124: Coles, Ash-
more, Charleston — ponds and pools and small streams (June-
Nov., Feb.). Britton: Cook, Glenview — swamp and temporary
pond about 1^ miles W., May 12, June 23, 1938, #53, 99. Lake,
Everett— small pond about 1 mile S., May 15, 1938, #71. Tran-
seau: Montgomery, Coffeen — pond (May). Tiffany 1930, p. 76;
1937, p. 32,; 1939, p. 91.
O. VULGARE (Wittr.) Tiff. Tiffany, loc. cit., p. 27. pi. 8. f. 103 (1937).
Oedogonium cryptoponim var. vulgare Wittr.
Transeau 1913B, p. 83, as 0. c. var. vulgare: Clark, Casey — ponds
(Apr., May). Coles, Ashmore, Lerna — ponds (Apr., May).
Montgomery, Coffeen — pond (May). Tiffany 1930, p. 66, as
0. c. var. vulgare; 1937, p. 27; 1939, p. 91.
O. WELWiTSCHii W. & G. S. West. Tiffany, loc. cit., p. 15. pi. 21. f. 334,
335 (1937).
Transeau: Coles, Charleston — small stream (July). Tiffany 1930,
p. 106; 1937, p. 51; 1939, p. 91.
O. WOLLEANUM Wittr. Tiffany, loc. cit., p. 62. pi. 36. f. 449, 450 (1937).
Transeau 1913B, p. 86: Clark, Casey — pond (May). Coles,
98 A CATALOG OF ILLINOIS ALGAE
Charleston, Lerna— ponds (Apr., May). Tiffany 1930, p. 135;
1937, p. 62; 1939, p. 91.
Order: ULVALES
Family: SCHIZOMERIDACEAE
SCHIZOMERIS Kuetzing, 1843
S. LEiBLEiNii Kuetz. Tiffany, Amer. Midi. Nat. 18: 932. pi. 1. f. 15, 16
(1937).
Transeau 1913B, p. 81; 1913C, p. 33: Coles, Charleston— ponds,
Kickapoo Creek and other small streams (June-Oct.). Britton:
Cook, Palos Park— swamp, Sept. 8, 1941, #975; Sag Bridge-
swamp, Sept. 8, 1941, #988. Transeau: Cumberland, Greenup —
pond (July). Effingham, Effingham — small stream (Nov.).
Forbes & Richardson 1913, p. 502: Will, Lockport— Sanitary
Canal.
Order: CHLOROCOCCALES
Family: CHLOROCOCCACEAE
CHLOROCOCCUM Fries, 1820
C. HUMicoLA (Naeg.) Rab. Smith, Freshw. Alg. U. S., p. 468. f. 311
(1933).
Transeau: Coles, Charleston — laboratory aquarium (Apr.).
GOLENKINIA Chodat, 1894
G. RADIATA Chod. Tiffany, Contrib. Franz T. Stone Lab. 6: 47. pi. 7.
f. 113 (1934).
Britton: Cook, Evanston — E. pond at Memorial Park Cemetery,
June 27, 1938, #104. Kofoid 1908, pp. 25, 315: Mason, Havana-
Illinois River (Apr.-Dec).
Family: ENDOSPHAERACEAE
CHLOROCHYTRIUM Cohn, 1872
C. KNYANUM Cohn & Szym. Collins, Tufts Col. Stud. 2(3): 147
(1909).
Transeau 1913B, p. 79: Coles, Lerna — in leaves and stems of
Radicula aquatica in ponds (May).
KENTROSPHAERA Borzi, 1883
K. FACCiOLAAE Borzi. Brunnthaler in Pascher, Suesswass.-fl. Deutsch.
5:67. f. 5 (1915).
Transeau: Coles, Lerna — pond (Apr.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 99
Family: CHARACIACEAE
CHARACIUM A. Braun, 1849
C. AMBIGUUM Herm. Tiffany, Contrib. Franz T. Stone Lab. 6: 48. pi.
7. f. 116 (1934).
Johnson & Atwell 1890, p. 19: Cook, Evanston— in "Big Ditch"
(Nov.).
C. NAEGELii A. Br. Tiffany, loc. ciL, L 121 (1934). >
Johnson & Atwell 1890, p. 19: Cook— "Big Woods" (Apr.).
C. PRiNGSHEiMii A. Br. Collins, Tufts Coll. Stud. 2(3): 151 (1909).
Transeau: Coles, Charleston — pond and small stream (Dec-
Mar.).
Family: HYDRODICTYACEAE
HYDRODICTYON Roth, 1800
H. RETicuLATUM (L.) Lag. Tiffany, Contrib. Franz T. Stone Lab. 6:
52. pi. 8. f. 130 (1934); DeToni, Sylloge Algarum 1(2): 562 (1889).
Hydrodictyon utriculatum Roth
Johnson & Atwell 1890, p. 19, as H. utriculatum; Britton: Cook,
Argonne Forest Preserve — Tuma Lake, July 14, 1939, #553, 554;
Palos Park— small shallow pond, July 13, 1939, #535; Rose Hill
(May). Edgar, Paris — reservoir (July). Jasper, Newton — small
stream and pond (May, Aug., Sept.). Lawrence, Pinkstaff- — Bee
Branch Creek and other small streams and ponds (June-Nov.).
McHenry, McHenry— swamp at N.E. side of McCulIon Lake,
July 6, 1939, #387.
PEDIASTRUM Meyen, 1829
P. ANGULOSUM (Ehr.) Menegh. Brunnthaler in Pascher, Suesswass.-fl.
Deutsch. 5(2): 99 (1915).
Transeau 1913B, p. 81: Coles, Charleston — pond (July).
P. BORYANUM (Turp.) Menegh. Tiffany, Contrib. Franz T. Stone Lab.
6: 49. pi. 8. f. 146, 147 (1934); DeToni, Sylloge Algarum 1(2): 576
(1889).
Micrasterias boryana Ehr. ; M. elliptica Ehr. ; M. tricyclia Ehr.
Bailey 1845, p. 34, as M. boryana, M. elliptica and M. tricyclia
(St. Clair). Johnson & Atwell 1890, p. 19; JelHffe 1893, p. 311
(Cook). Kofoid 1908, pp. 26, 292, 315 (Mason). Collins 1909, p.
177; Transeau 1913B, p. 81 ; 1916, p. 125 (Clark, Coles, Douglas).
Eddy 1927B, pp. 208, 223 (Cook). Purdy 1930, pp. 63, 68, 72
(Will). Britton 1940, p. 71 (Cook). Britton (Lake, McHenry).
Clark, Casey — pond (May). Coles, Charleston, Dorans —
ponds and pools (Jan.-July, Oct., Dec), laboratory aquaria
(Mar., Dec). Cook, Argonne Forest Preserve — Maple Lake,
Sept. 8, 1939, #986; Chicago— Lake Michigan (July, Aug., Nov.);
100 A CATALOG OF ILLINOIS ALGAE
Evanston- — aquarium (Mar.), small pond in Calvary Cemetery,
June 23, 1938, #74, city water reservoir, June 27, 1938, #106;
Morton Grove^ — small pond about 1 mile N.W., Oct. 3, 1938,
#217, 218; Northbrook — small pond on Pfingsten Road about 1^
miles S. of Techny Road, May 12, 1938, #64, small ponds in
Somme Forest Preserve, May 15, June 23, 1938, #65, 67, 115;
Sag Bridge — old quarry pond, Sept. 8, 1939, #1007, small ponds
and swamp, Sept. 8, 1939, #1015, 1021; Schnells Corner — pond
in Elk Grove Forest Preserve, Aug. 8, 1939, #780. Douglas,
Arthur — pond (May). Lake, Antioch^ — channel between Grass
Lake and Lake Marie, Lake Marie, and Channel Lake, Sept. 14,
1939, #1028, 1029, 1032, 1035; Fox Lake— Fox and Nippersink
Lakes, July 25, 1939, #594, 599, 602, 604, Aug. 25, 1939, #951,
• 953; Highwood— small pond. May 15, 1938, #73; Klondike-
Grass Lake, Fox Lake, Petite Lake, and connecting channels,
Aug. 25, 1939, #942, 945, 948, 958, 969, 971; Lake Zurich— in
Lake Zurich, Aug. 24, 1939, #913, 915; Libertyville— DesPlaines
River at Route 59A, July 29, 1938, #181. Volo— Fish Lake, Aug.
24, 1939, #935; Wauconda— Bangs and Slocum Lakes, Aug. 24,
1939, #920, 925-927; Waukegan— Dead River in Dunes Park,
May 11, 1939, #255, ditch, July 29, 1938, #173. Mason, Havana-
— Illinois River (all months). McHenry, Greenwood — Nipper-
sink Creek at Thayer School and below Wonder Lake Dam,
July 6, 7, 1939, #366, 432; McHenry— swamp on N.E. side of
McCullom Lake, July 6, 1939, #380; Richmond— Twin Lakes
(S. end of Lake Elizabeth), Aug. 2, 1939, #725, 729; Woodstock
—swamp about 2 miles S.W., July 7, 1939, #402, 403. St. Clair-
Mississippi River. Will, Lockport — Chicago Drainage Canal and
DesPlaines River (June-Oct.).
P. BORYANUM var. LONGICORNE Racib. Tiffany, loc. cit., f. 148 (1934).
Britton: Cook, Northbrook — small pond in Somme Forest Pre-
serve, May 15, 1938, #67.
P. DUPLEX Meyen. Tiffany, loc. cit., p. 50. f. 140 (1934); DeToni,
Sylloge Algarum 1(2): 578 (1889).
Pediastrum pertusiim Kuetz.
Jelliffe 1893, p. 311, as P. pertusum (Cook). Kofoid 1908, pp.
26-28, 32, 292, 315, as P. pertusum (Mason). Collins 1909, p.
179; Transeau 1913B, p. 81 (Coles, Montgomery, Moultrie).
Galtsoff 1924, pp. 399, 401, 402, 404, 405, 410 (Carroll, Hancock,
Henderson, Jo Daviess, Mercer, Rock Island, Whiteside). Eddy
1927A, p. 128 (Champaign). Purdy 1930, p. 72, as P. pertusum
(Will). Eddy 1931A, pp. 480, 483, 486 (Cass, Macon, Menard,
Sangamon); 1931B, p. 461 (Pulaski); 1934, pp. 385, 386, 388-
392, 394, 395, 399-403 (Adams, Alexander, Champaign, Cal-
CLASSIFIED CATALOG OF ILLINOIS ALGAE 101
houn, Hancock, Henry, Jackson, Jersey, Lake, Macon, Mason,
Madison, Massac, McHenry, Monroe, Ogle, Piatt, Pike, Pu-
laski, Randolph, St. Clair, Union, Wabash, Whiteside). Britton
1940, p. 71 (Cook). Britton (Lake, McHenry).
Adams — Mississippi River (June). Alexander — Mississippi
and Ohio Rivers (June), Horseshow Lake (June-Aug.). Calhoun
— Mississippi River (June). Carroll — Mississippi River (July,
Sept.). Cass, Chandlerville — Sangamon River (July, Sept.).
Champaign, Urbana — in lake at Crystal Lake Park (Apr.-Oct.).
Coles, Charleston — ponds (May). Cook, Argonne Forest Pre-
serve— swamp at 95th St. and 104th Ave., pond on Palos Golf
Course, shallow pond at 95th St. and 100th Ave., July 13, 1937,
#488, 504, 533, 534, Tuma Lake, July 14, 1939, #551, 555, shallow
pond at 95th St. and 100th Ave., Sept. 8, 1939, #978, 979;
Chicago — Lake Michigan; Evanston — small pond at Memorial
Park Cemetery, June 27, 1938, #104; Morton Grove — small pond
about 1 mile N.W., May 10, 1938, #43; Northbrook— small
ponds in Somme Forest Preserve, May 15, 1938, #65, June 27,
1938, #112, July 3, 1939, #360; Orland Park— small pond and
extensive swamp W. of Wolf Road on 131st St., Sept. 8, 1939,
#1021; Palos Park — Calumet Sag Channel at Kean Ave., and
small ponds at Harlem Ave. and 143rd St., July 14, 1939, #559,
578, 581 ; Park Ridge— DesPlaines River at Touhy Ave., July 12,
1939, #452; Schnells Corner — small ponds in Elk Grove Forest
Preserve, June 23, 1938,. #91, 95, June 22, 1939 #309, 321, 324,
327; Wheeling — DesPlaines River at Dam #1 (Hintz Road) and
Dam #2 (Foundry Road), Aug. 8, 1939, #777, 780. Hancock,
Dallas City — Lake Keokuk-Mississippi River (June, July,
Sept.). Henderson — Mississippi River (July-Aug.). Henry,
Colona — slough (June-Aug.). Jackson, Jersey, Jo Daviess —
Mississippi River (June-Sept.). Lake, Antioch — Channel Lake,
Sept. 14, 1939, #1035; Fox Lake^ — Nippersink Creek and Nipper-
sink Lake, July 25, 1939, #601, 602, Fox Lake, July 25, 1939,
#604, 605, Aug. 25, 1939, #951, Long Lake ("summer"); Klon-
dike—Grass Lake, Aug. 25, 1939, #943 945, 969; Grass Lake-
Fox Lake channel, Aug. 25, 1939, #948, Fox Lake, Aug. 25,
1939, #950; Lake Villa— Sand Lake ("summer"); Libertyville—
DesPlaines River at Route 59A, July 29, 1938, #181, Butlers
Lake, July 14, 1938, #122; Wauconda — Bangs and Slocum
Lakes, Aug. 24, 1939, #920, 926; Waukegan— in Dead River at
Dunes Park, May 11, 1939, #255. Macon, Decatur — Sangamon
River (Lake Decatur) (Apr.-Nov.); Harristown — Sangamon
River (Sept.). Madison — Mississippi River (June). Mason,
Havana — Illinois River (all months). Massac — Ohio River
102 A CATALOG OF ILLINOIS ALGAE
(June). McHenry, Algonquin — Fox River ("summer"); Green-
wood—Nippersink Creek and Wonder Lake, Jul}^ 6, 1939, #365,
366, 368; Johnsburg— Fox River, July 25, 1939, #590; McHenry
— swamps and small stream at N.E. side of McCullom Lake,
July 6, 1939, #376, 377, 380, small pond about 3 miles N.W.,
July 6, 1939, #390; Richmond — Twin Lakes (Lake Elizabeth),
Aug. 2, 1939, #729; Woodstock— swamp about 2 miles S.E.,
July 7, 1939, #403. Menard, Petersburg — Sangamon River (June,
July, Sept.). Mercer, New Boston — Mississippi River (July-
Sept.), Edwards River (July). Monroe — Mississippi River
(June). Montgomery, Coffeen^ — ponds (May). Moultrie, Sullivan
■ — artificial pond (Aug.). Ogle, Byron— slough (June-Aug.);
Grand Detour— slough (June-Aug.). Piatt, Monticello — Sanga-
mon River (June, Aug., Nov.). Pike — Mississippi River (June).
Pulaski — Mississippi and Ohio Rivers (June). Randolph —
Mississippi River (June). Rock Island — Mississippi River (July-
Sept.). Sangamon, Illiopolis, Riverton, Springfield — Sangamon
River (June, July, Sept.). St. Clair^ — Mississippi River (June).
Union — Mississippi River (June) ; Larue — Wolf Lake (June-
Aug.). Wabash, Mt. Carmel — Wabash River. Whiteside —
Mississippi River (June); Erie — Rock River Slough, Hatwood
Slough (June-Aug.). Will, Lockport^ — DesPlaines River (June-
Aug.).
P. DUPLEX var. CLATHRATUM (A. Br.) Lag. Smith, Bull. Wis. Geol. &
Nat. Hist. Surv. 57(1): 171. pi. 47. f. 1-3 (1920).
Transeau 1913B, p. 81 : Coles, Charleston — ponds (May).Britton
Cook, Argonne Forest Preserve — Maple Lake, Sept. 8, 1939, #991.
Lake, Fox Lake — Fox Lake, south of Indian Point, Aug. 25,
1939, #950; Fox Lake— Grass Lake channel, Aug. 25, 1939, #948;
Libertyville— DesPlaines River at Route 59A, July 29, 1938,
#181. McHenry, McHenry— Nippersink Creek below Wonder
Lake dam, July 6, 1939, #365, 366. Transeau: Montgomery,
Coffeen — ponds (May). Moultrie, Sullivan^artificial pond
(Aug.).
P. DUPLEX var. ROTUNDATUM Lucks. Tiffany, Contrib. Franz T. Stone
Lab. 6: 50. pi. 8. f. 143 (1934).
Britton: Cook, Northbrook — small pond in Somme Forest Pre-
serve, June 27, 1938, #112; Sag Bridge— pond, Sept. 8, 1939,
#1000. Lake, Fox Lak^Petite Lake, Aug. 25, 1939, #958, Lake
Marie, Sept. 14, 1939, #1030; Wauconda— Slocum Lake, Aug.
24, 1939, #926.
P. INTEGRUM Naeg. Tiffany, loc. cit., p. 49. f. 145 (1934).
Britton: Cook, Palos Park— swamp, July 14, 1939, #556.
P. SIMPLEX Meyen. Tiffany, loc. cit., p. 50. f. 135-136 (1934).
Galtsoff 1924, pp. 399, 402, 404: Carroll— Mississippi River
CLASSIFIED CATALOG OF ILLINOIS ALGAE 103
(July, Sept.). Baker 1922, pp. 80, 84: Champaign, Urbana—
Boneyard Creek and Salt Fork. Galtsoff, loc. cit.: Hancock —
Mississippi River. Henderson, Jo Daviess— Mississippi River
(July-Sept.). Britton: Lake, Antioch — Grass Lake-Lake Marie
Channel, Sept. 14, 1939, #1028, 1029; Klondike— Grass Lake-
Fox Lake Channel and Fox Lake, Aug. 25, 1939, #948, 950;
Libertyville— DesPIaines River at Route 59A, July 29, 1938,
#181. Eddy 1931A, pp. 483, 486: Macon— Lake Decatur (July).
Menard, Petersburg — Sangamon River (Sept.). Galtsoff, loc.
cit.: Mercer, Rock Island, Whiteside— Mississippi River (July-
Sept.). Purdy 1930, pp. 68, 69, 72: Will, Lockport— DesPIaines
River (June- Nov.).
P. SIMPLEX var. DUODENARIUM (Bail.) Rab. Tiffany, loc. cit., f. 139
(1934).
Collins 1909, p. 177: ? County, Britton: Cook, Palos Park —
Calumet Sag Channel at Kean Ave., July 14, 1939, #559; Sag
Bridge — stone quarry and other small ponds, Sept. 8, 1939,
#1007, 1011, 1014. Lake, Fox Lake— Fox, Grass, Marie, Channel,
Nippersink and Petite Lakes and connecting channels, July 25,
Aug. 25, Sept. 14, 1939, #602, 604, 942, 943, 945, 948, 950, 953,
958, 959, 1029, 1035; Halfday— gravel pit E. of, Aug. 8, 1939,
#772; Volo— Fish Lake, Aug. 24, 1939, #935, 936; Wauconda—
Bangs and Slocum Lakes, Aug. 24, 1939, #923, 926. McHenry,
Johnsburg— Pistakee Lake, July 25, 1939, #595, Fox River at
Pistakee Lake, July 25, 1939, #592; Richmond— S. end of South
Twin Lake (Lake Elizabeth), Aug. 2, 1939, #729.
P. TETRAS (Ehr.) Ralfs. Tiffany, loc. cit., f. 132; DeToni, Sylloge Al-
garum 1(2): 581 (1889).
Pediastrum ehrenhergii A. Br.
Collins 1909, p. 179; Transeau 1913B, p. 81 : Coles, Charleston-
ponds (June, Nov.). Johnson & Atwell 1890, p. 19, as P. ehren-
hergii; Britton: Cook— "Big Ditch" (Sept.); Argonne Forest
Preserve— swamp at 95th St. & 104th Ave., July 13, 1939, #488,
502, 503, Sept. 8, 1939, #984, small ponds, July 13, 1939, #515,
520, 525, 529, 533, swamps at 95th St. & 96th Ave., Kean Ave.
between 87th & 95th Sts. and 131st St. W. of Wolf Road, July 13,
1939^ #477, 497, 541, 543, 1018; Evanston— small pond in Cal-
vary Cemetery, and small greenhouse reservoir, June 23, 1938,
#74, 75; Glenview — swamp and temporary pond about 1| miles
W., June 23, 1938, #97; Goeselville — pond at Mascouten Forest
Preserve, July 14, 1939, #578, 588; Morton Grove — small pond
about 1 mile N.W., May 10, 1938, #43; Northbrook— small
ponds at Somme Forest Preserve, June 27, 1938, #112, 115,
May 8, 1939, #241, 243, July 3, 1939, #350, small pond on Techny
Road \ mile W. of Landwehr Road, June 27, 1938, #110; Palos
104 A CATALOG OF ILLINOIS ALGAE
Park — pond, July 14, 1939, #566; Schnells Corner — ponds at
Elk Grove Forest Preserve, June 22, 1939, #327, Aug. 8, 1939,
#790; Wheeling — DesPIaines River at Dam #2 (Foundry Road),
Aug. 8, 1939, #780. Britton: Lake, Highland Park — small pond
at Euclid Hills C. C, June 27, 1938, #118; McHenry, Johnsburg
—Fox River, July 25, 1939, #590; McHenry— swamp E. of
McCuIlom Lake, July 6, 1939, #374. Eddy 1931B, p. 461:
Pulaski, Wetaug — sink-hole pond (July). Purdy 1930, pp. 68,
69, 72: Will, Lockport — DesPIaines River (June-Nov.).
P. TETRAS var. TETRAODON (Corda) Hansg. Tiffany, loc. cit., p. 51. f.
133 (1934).
Britton 1940, p. 71: Cook, Evanston — gravel pit at Simpson St.
and Grosse Point Road, Oct. 3, 1938, #212; Morton Grove-
small pond about 1 mile N.W., May 10, 1938, #43; Palos Park-
shallow ponds, July 13, 1939, #535, 540, swamp, Sept. 8, 1939,
#982; Sag Bridge— swamp, Sept. 8, 1939, #984; stone quarry
pond and small pond in extensive swamp, Sept. 8, 1939, #1008,
1016, 1021. Britton: Lake, Waukegan — in Dead River at Dunes
Park, May 11, 1939, #255; Fox Lake— Fox Lake, Aug. 25, 1939,
#951, channel entering E. side of Grass Lake, Aug. 25, 1939,
#971; Lake Zurich— in Lake Zurich, Aug. 24, 1939, #916; Wau-
conda— Bangs Lake, Aug. 24, 1939, #925. McHenry, Harvard-
small pond about 2 miles N.E., July 8, 1939, #436; Richmond—
S. end of South Twin Lake (Lake Elizabeth), Aug. 2, 1939, #725.
SORASTRUM Kuetzing, 1845
S. spiNULOSUM Naeg. Tififany, loc. cit., p. 51. pi. 7. f. 129 (1934).
Transeau 1913B, p. 81: Coles, Ashmore, Charleston, Lerna —
ponds (May-July, Oct.). Britton: Cook, Argonne Forest Pre-
serve—Tuma Lake, July 14, 1939, #551; Northbrook— small
pond in Somme Forest Preserve, July 3, 1939, #350; Palos Park
—small ponds, July 14, Sept. 8, 1939, #578, 978; Sag Bridge-
ponds and swamps, July 13, 1939, #488, 493, 504, 510, 515, 526,
Sept. 8, 1939, #988, 998, 1016, 1018, 1021; Schnells Corner—
small ponds in Elk Grove Forest Preserve, June 23, 1938, #95,
June 22, Aug. 8, 1939, #321, 322, 324, 327, 780, 790. Lake, Lake
Zurich— in Lake Zurich, Aug. 24, 1939, #913; Volo— bog at
Tamarack Farm, June 3, 1939, #294. McHenry, Harvard-
swamps and small pond about 2 miles E., July 8, 1939, #434, 436;
McHenry — swamp on E. side of McCullom Lake, July 6, 1939,
#374-376, small stream draining into Defiance Lake, Aug. 24,
1939, #934.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 105
Family: COELASTRACEAE
COELASTRUM Naegeli, 1849
C. CAMBRICUM Arch. Tiffany, loc. cit., p. 52. pi. 8. f. 159.
Transeau 1913B, p. 80: Coles, Charleston — ponds (June). Daily
1938, p. 80: Cook, Evanston — Lake Michigan. Britton: Lake,
Fox Lake — Grass, Fox, Marie, Bluff, and Channel Lakes and
connecting channels, Aug. 25, Sept. 14, 1939, #943, 945, 953, 971,
1028, 1029, 1033, 1035, 1046, 1047; Wauconda— Slocum Lake,
Aug. 24, 1939, #926. Kofoid 1908, pp. 23, 24, 315: Mason,
Havana — Illinois River (Mar.-Nov.). Britton: McHenry, Rich-
mond^— S. end of South Twin Lake (Lake Elizabeth), Aug. 2,
1939, #729.
C. MiCROPORUM Naeg. Tiffany, loc. cit., f. 162 (1934).
Transeau 1913B, p. 80 (Coles). Eddy 1927B, p. 215 (Cook);
1931A, pp. 480, 481, 483, 486 (Cass, Macon, Menard, Sanga-
mon); 1931B, p. 461 (Pulaski). Britton (Cook, Lake, McHenry).
Cass, Chandlerville — Sangamon River (June, Sept.). Coles,
Charleston, Dorans — ponds and pools (Feb., May, July, Oct.,
Nov.). Cook, Argonne Forest Preserve — Tuma Lake, July 14,
1939, #551, 555, ponds, Sept. 8, 1939, #973, 978, Maple Lake,
Sept. 8, 1939, #986, 991; Chicago— Lake Michigan (July);
Goeselville — pond at Mascoutin Forest Preserve, July 14, 1939,
#581, 588; Northbrook — small pond at Somme Forest Preserve,
June 27, 1938, #115; Palos Park — Calumet Sag Channel at Kean
Ave., July 14, 1939, #559; Park Ridge— DesPlaines River at
Touhy Ave., July 12, 1939, #452; Sag Bridge — stone-quarry
pond, Sept. 8, 1939, #1007; Schnells Corner — pond at Elk Grove
Forest Preserve, Aug. 8, 1939, #785; Wheeling — DesPlaines
River at Dam #2 (Foundry Road), Aug. 8, 1939, #780. Lake,
Antioch — Grass Lake-Lake Marie Channel, Sept. 14, 1939,
#1028, 1029"; Fox Lake — Nippersink Lake and Nippersink Creek,
July 25, 1939, #599, 601, 602, Fox Lake, Aug. 25, 1939, #966;
Halfday — small pond, Aug. 8, 1939, #772; Klondike — Grass
Lake and connecting channels, Aug. 25, 1939, #947, 969; Lake
Forest — small pond on Green Bay Road, July 29, 1938, #180;
Volo — bog at Tamarack Farm, June 3, 1939, #294, Fish Lake,
Aug. 24, 1939, #935; Wauconda — Bangs and Slocum Lakes,
Aug. 24, 1939, #924-927. McHenry, Greenwood— Wonder Lake,
July 6, 1939, #368; Macon— Lake Decatur (June, July); Mc-
Henry—swamp E. of McCullom Lake, July 6, 1939, #374-376;
Woodstock — swamp 2 miles S.E., July 7, 1939, #403. Menard
Petersburg — Sangamon River (Sept.). Pulaski, Wetaug — sink-
hole ponds (July, Sept.). Sangamon, lUiopolis, Riverton and
Springfield — Sangamon River (Sept.).
106 A CATALOG OF ILLINOIS ALGAE
C. RETicuLATUM (Dang.) Senn. Tiffany, loc. cit., f. 163 (1934).
Transeau: Coles, Charleston — pond (Nov.). Eddy 1927B, pp.
208, 223: Cook, Chicago— Lake Michigan (Sept.). Eddy 1931 B,
p. 461: Pulaski, Wetaug — sink-hole pond (Sept.).
C. SPHAERICUM Naeg. Tiffany, loc. cit., f. 160 (1934).
Britton: Cook, Sag Bridge — small ponds and extensive swamp,
Sept. 8, 1939, #1014, 1016.
Family: OOCYSTACEAE
ANKISTRODESMUS Corda, 1838; Ralfs, 1848
A. FALCATUS (Corda) Ralfs. Brunnthaler in Pascher, Suesswass.-fl.
Deutsch. 5(2) : 188. f. 283 (1915) ; DeToni, Sylloge Algarum 1(2) : 592
(1889).
Raphidium falcatum (Corda) Cooke; R. polymorphum Fresen.; R.
polymorphum var. sigmoideum Rab.
Johnson & Atwell 1890, p. 19, as Raphidium p. var. sigmoideum
(Cook). Jelliffe 1893, p. 311, as Raphidium polymorphum (Cook).
Kofoid 1908, pp. 23, 30, 292, 316, as Raphidium polymorphum
(Mason). Transeau 1913B, p. 80, as Raphidium falcatum (Coles).
Eddy 1927B, pp. 215, 222 (Cook); 1931A, pp. 480, 486 (Cass,
Macon, Menard, Sangamon); 1931B, p. 461 (Pulaski). Britton
(Cook).
Cass, Chandlerville — Sangamon River (Sept.). Coles, Charles-
ton— pond (Nov.). Cook, Chicago — Lake Michigan (July);
Evanston — aquarium (Mar.); Northbrook — small pond and
swamp on Techny Road just E. of Landwehr Road, May 12,
1938, #62. Macon — Lake Decatur (June); Harristown — Sanga-
mon River (June, Sept.). Mason, Havana— Illinois River (all
months). Menard, Petersburg — Sangamon River (Sept.). Pu-
laski, Wetaug — sink-hole ponds (Sept., Dec). Sangamon,
Illiopolis, Riverton, Springfield — Sangamon River (June, Sept.).
A. LONGissiMUS (Lemm.) Wille. Brunnthaler, loc. cit., p. 191. f. 300
(1915).
Raphidium longissimum Schroed.
Kofoid 1908, p. 30, as Raphidium longissimum: Mason, Havana
Illinois River (Aug., Oct., Dec, Feb.).
CHLORELLA Beyerinck, 1890
C. coNDUCTRix Brandt. Smith, Freshw. Alg. U. S., p. 492 (1933).
Zoochlorella conductrix Brandt.
Transeau 1913B, p. 80, as Zoochlorella conductrix: Coles, Charles-
ton— pond (Nov.); laboratory culture— in Paramecium bursaria,
Stentor polymorphus and Hydra viridis (Jan. 4, 1912, two weeks
after collection from pond).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 107
C. PARASITICA Brandt. Smith, loc. cit. (1933).
Zoochlorella parasitica Brandt.
Transeau 1913B, p. 80, a.s Zoochlorella parasitica: Coles, Charles-
ton— in freshwater sponge in pond.
C. VULGARIS Beijer. Tiffany, Contrib. Franz T. Stone Lab. 6: 54. pi. 9.
f. 180 (1934).
Forbes & Richardson 1913, p. 502: Will, Lockport"encrusting
stones" in Sanitary Canal.
CLOSTERIOPSIS Lemmermann, 1898
C. LONGissiMA Lemm. Tiffany, loc. cit., p. 53. f. 173 (1934).
Eddy 1931B, p. 461: Pulaski, Wetaug — sink-hole pond (Sept.,
Dec).
DACTYLOCOCCUS Naegeli, 1849
D. INFUSIONUM Naeg. Smith, Freshw. Alg. U. S., p. 507. f. 384 (1933).
Kofoid 1908, p. 34: Mason, Havana — Illinois River.
DICTYOSPHAERIUM Naegeli, 1849
D. EHRENBERGIANUM Naeg. Tiffany, Contrib. Franz T. Stone Lab. 6:
54. pi. 9. f. 168 (1934).
Jelliffe 1893, p. 311; Britton: Cook, Chicago — Lake Michigan;
Sag Bridge — small ponds and swamps, July 13, 1939, #494, 529,
530; Schnells Corner — pond in Elk Grove Forest Preserve, Aug.
8, 1939, #790. Britton: Lake, Volo— Fish Lake, Aug. 24, 1939,
#935. McHenry, Woodstock— swamp 2 miles S.E., July 7, 1939,
#403.
D. PULCHELLUM Wood. Tiffany, loc. cit., f. 167 (1934).
Eddy 1927B,pp. 208, 215,' 222; Daily 1938, p. 80; Britton: Cook,
Chicago^ — Lake Michigan (July, Aug.); Argonne Forest Preserve
—Maple Lake, July 13, 1939, #487; Evanston— Lake Michigan;
ponds in Memorial Park Cemetery, June 27, 1938, #103, 104;
Glen view — swamp and temporary pond about \\ miles W.,
Oct. 3, 1938, #219; Palos Park— Calumet Sag Channel at Kean
Ave., July 14, 1939, #559; Sag Bridge— small ponds, July 13,
1939, #510, 530, Sept. 8, 1939, #1015, swamps, July 13, 1939,
#488, 492, 494, 495, 503. Britton: Lake, Fox Lake— in Fox,
Nippersink, Grass, Petite, Marie and Channel Lakes and con-
necting channels, July 25, Aug. 25, Sept. 8, 14, 1939, #602, 604,
943, 945, 948, 950, 953, 954, 958, 971, 1028, 1029, 1032, 1033,
1035; Lake Zurich— in Lake Zurich, Aug. 24, 1939, #914; Volo—
bog at Tamarack Farm, June 3, 1939, #294. McHenry, Johns-
. burg— Pistakee Lake, July 25, 1939, #592; McHenry— swamp
E. of McCullom Lake, July 6, 1939, #374, 376; small pond about
1 mile N.W. of McCullom Lake, July 6, 1939, #390; Ringwood—
108 A CATALOG OF ILLINOIS ALGAE
pond about 1 mile N.W., July 6, 1939, #398; Woodstock — swamp
about 2 miles S.E., July 7, 1939, #403. Eddy 1931B, p. 461:
Pulaski, Wetaug — sink-hole ponds (July, Sept.)-
DIMORPHOCOCCUS A. Braun, 1855
D. LUNATUS A. Br. Tiffany, loc. ciL, p. 58. f. 166 (1934).
Britton: Cook, Sag Bridge — small shallow pond, July 13, 1939,
#510. Lake, Fox Lake — channel entering E. side of Grass Lake,
Aug. 25, 1939, #971.
GLOEOTAENIUM Hansgirg, 1890
G. LOITLESBERGERIANUM Hansg. Tiffany, loc. cit., pi. 15. f. 366 (1934).
Collins 1912, p. 95; Transeau 1912, p. 143; 1913A, p. 67; 1913B,
p. 80: Coles, Charleston— ponds (May-Oct.). Britton: Cook,
Sag Bridge— stone quarry pond, Sept. 8, 1939, #1008. McHenry,
Woodstock — swamp about 2 miles S.E., and small pond about
1 mile E., July 7, 1939, #403, 425.
KIRCHNERIELLA Schmidle, 1893
K. LUNARis (Kirch.) Moeb. Tiffany, loc. cit., p. 56. pi. 9. f. 185 (1934).
Transeau 1913B, p. 80: Clark, Casey— pond (Nov.). Coles,
Charleston — pond (May). Britton : Lake, Fox Lake — in Channel
Lake, Sept. 14, 1939, #1035; Lake Zurich— in Lake Zurich, Aug.
24, 1939, #914; Volo— Fish Lake, Aug. 24, 1939, #935.
K. OBESA var. major (Bern.) G. M. Smith. Tiffany, loc. cit., p. 57. f.
190 (1934).
Britton : Lake, Fox Lake — channel between Grass Lake and Lake
Marie, Sept. 14, 1939, #1028, 1029.
NEPHROCYTIUM NaegeH, 1849
N. AGARDHIANUM Naeg. Tiffany, loc. cit., p. 58. f. 195 (1934).
Transeau 1913B, p. 80: Coles, Ashmore, Charleston — ponds
(May-Nov.). Britton : Cook, Northbrook — small pond at Somme
Forest Preserve, May 15, 1938, #65.
N. LUNATUM W. West. Tiffany, loc. cit., f. 193 (1934).
Britton: Cook, Sag Bridge— small ponds, Sept. 8, 1939, #998,
1000.
OOCYSTIS Naegeli, 1845
O. BORGEi Snow. Tiffany, loc. cit., p. 59. pi. 10. f. 216 (1934).
Ahlstrom 1936, p. 293: Cook, Evanston — Lake Michigan.
O. CRASSA Wittr. Tiffany, loc. cit., f. 217 (1934).
Ahlstrom 1936, p. 293; Britton 1940, p. 71: Cook, Evanston—
Lake Michigan; Morton Grove^ — small pond 1 mile N.W., June
CLASSIFIED CATALOG OF ILLINOIS ALGAE 109
23, 1938, #77; Northbrook — small pond on Techny Road ^ mile
W. of Landwehr Road, June 27, 1938, #110, small' ponds at
Somme Forest Preserve, June 27, 1938, #112, May 8, 1939, #243.
O. ELLIPTICA W. West. Tiffany, loc. ciL, f. 218 (1934).
Britton 1940, p. 71: Cook, Morton Grove — small pond about
1 mile N.W., May 10, 1938, #43, June 23, 1938, #77.
O. GiGAS Arch. Brunnthaler in Pascher, Suesswass.-fl. Deutsch. 5(2):
127. f. 105 (1915).
Transeau: Clark, Casey — pond (Nov.).
O. NAEGELii A. Br. Brunnthaler, loc. ciL, f. 108 (1915).
Kofoid 1908, pp. 23, 25: Mason, Havana— Illinois River (Mar.,
May-Sept., Dec).
O. SOLITARIA Wittr. Tiffany, Contrib. Franz T. Stone Lab. 6: 59. pi.
10. f. 212 (1934).
Transeau: Clark, Casey— pond (July, Nov.). Coles, Charleston
— pond (Apr.). Britton: Lake, Fox Lake — channel entering E.
side of Grass Lake, Aug. 25, 1939, #971. Kofoid 1908, pp. 23, 26:
Mason, Havana — Illinois River ("probably throughout the
year").
O. SOLITARIA f. MAJOR Wille. Brunnthaler in Pascher, Suesswass.-fl.
Deutsch. 5(2): 125 (1915).
Transeau 1913B, p. 80: Clark, Casey— pond (Sept., Nov.).
SCHROEDERIA Lemmermann, 1899
S. SETIGERA (Schroed.) Lemm. Tiffany, Contrib. Franz T. Stone Lab.
6: 62. pi. 9. f. 172 (1934).
Kofoid 1908, pp. 23, 33, 292, 316: Mason, Havana— Illinois
River (all months). Eddy 1931 A, p. 486: Piatt, Monticello—
Sangamon River (Sept.).
SELENASTRUM Reinsch, 1867
S. BIBRAIANUM Reinsch. Tiffany, loc. cit., p. 60. f. 198 (1934).
Britton: Cook, Palos Park — Calumet Sag Channel at Kean Ave.,
July 14, 1939, #559. Kofoid 1908, pp. 34, 316: Mason, Havana-
Illinois River (Aug.-Nov.).
S. BIBRAIANUM var. GRACILE (Reinsch) Tiff. & Ahl. Tiffany, loc. cit., f.
197 (1934).
Selenastrum gracile Reinsch
Britton : Cook, Argonne Forest Preserve — swamp at 95th St. and
104th Ave., July 13, 1939, #502, 503; Palos Park— Calumet Sag
Channel at Kean Ave., July 14, 1939, #559. Lake, Antioch—
Grass Lake-Lake Marie Channel, Sept. 14, 1939, #1028; Fox
Lake— in Nippersink Lake, July 25, 1939, #602; Wauconda—
■ Bangs Lake, Aug. 24, 1939, #924. Eddy 1931A, p. 486, as S.
110 A CATALOG OF ILLINOIS ALGAE
gracile: Macon — Lake Decatur (Sept.)- Britton: McHenry,
Greenwood — Wonder Lake, July 6, 1939, #368; Richmond —
Twin Lakes (Lake Elizabeth), Aug. 2, 1939, #729.
TETRAEDRON Kuetzing, 1845
T. BIFURCATUM (Wille) Lag. Brunnthaler in Pascher, Suesswass.-fl.
Deutsch. 5(2): 156. f. 194 (1915).
Polyedrium bifurcatum Wille
Transeau: Coles, Charleston — ponds (July, Oct.). Kofoid 1908,
p. 30, as Polyedrium bifurcatum: Mason, Havana — Illinois
River ("summer").
T. GiGAS (Wittr.) Hansg. Brunnthaler, loc. ciL, p. 148. f. 159 (1915).
Polyedrium gigas Wittr.
Johnson & Atwell 1890, p. 19, as Polyedrium gigas: Cook, Lake-
side— (May).
T. GRACILE (Reinsch) Hansg. Brunnthaler, loc. cit., p. 157. f. 201
(1915).
Polyedrium grafile Reinsch
Kofoid 1908, p. 30, as Polyedrium gracile: Mason, Havana —
Illinois River ("summer"). Eddy 1931B, p. 461 : Pulaski, Wetaug
■ — sink-hole pond (July, Sept.).
T. LIMNETICUM Borgc. Tiffany, Contrib. Franz T. Stone Lab. 6: 63.
pi. 11. f. 256-257 (1934).
Britton: Lake, Wauconda— Slocum Lake, Aug. 24, 1939, #926.
T. LOBULATUM (Naeg.) Hansg. Tiffany, loc. cit., f. 253 (1934).
Eddy 1931B, p. 461: Pulaski, Wetaug — sink-hole pond (Sept.).
T. MINIMUM (A. Br.) Hansg. Tiffany, loc. cit., p. 64. f. 233 (1934).
Britton: Cook, Evanston — small pond in Calvary Cemetery,
June 23, 1938, #74; Morton Grove — small pond about 1 mile
N.W., May 10, June 23, 1938, #43, 77; Northbrook— small pond
on Techny Road about § mile W. of Landwehr Road, June 27,
1938, #110; Palos Park— swamp, July 13, 1939, #477; Sag Bridge
—swamps, July 13, Sept. 8, 1939, #488, 1016, 1018. Lake, Fox
Lake— in Nippersink Lake, July 25, 1939, #599; Wauconda—
Bangs Lake, Aug. 24, 1939, #925. McHenry, Richmond— S. end
of South Twin Lake (Lake Elizabeth), Aug. 2, 1939, #729.
T. MINIMUM f. TETRALOBULATUM Reiusch. Brunnthaler in Pascher,
Suesswass.-fl. Deutsch. 5(2): 148 (1915).
Britton: Cook, Techny — ^small pond about 1^ miles S.W., May
12, 1938, #64.
T. MUTICUM f. PUNCTULATUM Reinsch. Brunnthaler, loc. cit., p. 147
(1915).
Collins 1909, p. 163.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 111
T. QUADRATUM f. MINUS ACUTUM Reinsch. Brunnthaler, loc. ciL, p.
150 (1915).
Collins 1909, p. 164.
T. REGULARE Kuetz. Tiffany, Contrib. Franz T. Stone Lab. 6: 64.
pi. 11. f. 231 (1934).
Britton: Cook, Northbrook— ponds at Somme Forest Preserve,
June 27, 1938, #113, May 8, 1939, #240; Schnells Corner— ponds
at Elk Grove Forest Preserve, June 22, 1939, #324.
T. TRIGONUM (Naeg.) Hansg. Brunnthaler in Pascher, Suesswass.-fl.
Deutsch. 5(2): 149. f. 163 (1915).
Polyedrium trigonum Naeg.
Kofoid 1908, p. 30, as Polyedrium trigonum: Mason, Havana —
Illinois River (June-Oct.). Eddy 1931 B, p. 461 : Pulaski, Wetaug
— sink-hole pond (July, Sept., Dec).
T. TRIGONUM f. MA JUS Brueg. Brunnthaler, loc. cit. (1915).
Collins 1909, p. 162.
T. TRIGONUM var. MINUS Reinsch. Brunnthaler, loc. cit. (1915).
Polyedrium trigonum var. minus Reinsch
Kofoid 1908, p. 30, as Polyedrium t. var. minus: Mason, Havana
— Illinois River ("summer").
T. TRIGONUM var. TETRAGONUM (Naeg.) Rab. Brunnthaler, loc. cit.
(1915).
Polyedrium trigonum var. tetragonum (Naeg.) Rab.
Kofoid 1908, p. 30, as Polyedrium t. var. tetragonum: Mason,
Havana — Illinois River ("summer").
TREUBARIA Bernard, 1908
T. CRASSISPINA G. M. Smith. Tiffany, Contrib. Franz T. Stone Lab.
6:65. pi. 11. f. 262 (1934).
Eddy 1931B, p. 461: Pulaski, Wetaug— sink-hole pond (Sept.,
Dec).
TROCHISCIA Kuetzing, 1845
T. ARGUTA (Reinsch) Hansg. Brunnthaler in Pascher, Suesswass.-fl.
Deutsch. 5(2): 205 (1915).
Collins 1909, p. 146.
T. RETICULARIS (Reinsch) Hansg. Tiffany, Contrib. Franz T. Stone
Lab. 6:54. pi. 9. f. 183 (1934).
Collins 1909, p. 145; Transeau: Coles, Charleston— ditch (Apr.)
Family: SCENEDESMACEAE
ACTINASTRUM Lagerheim, 1882
A. HANTZscHii Lag. Tiffany, loc. cit., p. 72. pi. 10. f. 226 (1934).
Galtsoff 1924, pp. 399, 401, 402, 404, 405; Carroll— Mississippi
112 A CATALOG OF ILLINOIS ALGAE
River (July, Sept.). Eddy 1931 A, pp. 480, 483, 486: Cass, Chan-
dlerville — Sangamon River (June-Sept.). Galtsoff, loc. cit.:
Hanson, Henderson, Jo Daviess — Mississippi River (July-
Sept.). Eddy, loc. cit.: Macon, Decatur — Lake Decatur (June,
July); Harristown — Sangamon River (July). Kofoid 1908, pp.
23, 24, 292, 315: Mason, Havana — Illinois River (Jan., May-
Nov.). Eddy, loc. cit.: Menard, Petersburg — Sangamon River
(July, Sept.). Galtsoff, loc. cit.: Mercer — Mississippi and Ed-
wards Rivers (July, Aug.). Rock Island — ^Mississippi River
(July-Sept.). Eddy, loc. cit.: Sangamon, Illiopolis, Riverton,
Springfield — Sangamon River (July, Sept.). GaltsofT, loc. cit.:
Whiteside — Mississippi River (July, Sept.).
A. HANTZSCHii var. fluviatile Schroed. Tiffany, loc. cit. (1934).
Britton: Cook, Park Ridge — DesPlaines River at Touhy Ave.,
July 12, 1939, #452. McHenry, Greenwood — Nippersink Creek
near Thayer School, July 7, 1939, #432.
CRUCIGENIA Morren, 1830
C. IRREGULARIS Wille. Tififany, loc. cit., p. 70. pi. 8. f. 154 (1934).
Britton: Cook, Evanston — gravel-pit pond at Simpson St. and
Grosse Point Road, Oct. 3, 1938, #212; Park Ridge— gravel-pit
pond and swamp, July 12, 1939, #454; Sag Bridge^ — small pond
and extensive swamp, Sept. 8, 1939, #1016. McHenry, Green-
wood— swamp in Game Preserve 2 miles N.W., July 6, 1939,
#395, 396; Woodstock — small pond about 1 mile S.E., July 7,
1939, #425. Eddy 1931B, p. 461: Pulaski, Wetaug— sink-hole
pond (July).
C. LAUTERBORNEi Schmid. Tiffany, loc. cit., f. 158 (1934); Smith,
Freshw. Alg. U. S., p. 519 (1933).
Staurogenia lauterbornei Schmid.
Britton: Cook, Palos Park — Calumet Sag Channel at Kean Ave.,
July 14, 1939, #559. Kofoid 1908, p. 34, as Staurogenia lauter-
bornei: Mason, Havana — Illinois River.
C. RECTANGULARis (Naeg.) Gay. Tiffany, loc. cit., f. 155 (1934).
Transeau 1913B, p. 80: Coles, Charleston — pond (Sept.). Kofoid
1908, pp. 23, 25, 292, 315: Mason, Havana— Illinois River (May-
Feb.).
C. TETRAPEDiA (Kirch.) W. & G. S. West. Tiffany, loc. cit., f. 149, 150
(1934); Brunnthaler in Pascher, Suesswass.-fl. Deutsch 5(2): 174. f.
251 (1915).
Tetrapedia emarginata Schroed
Kofoid 1908, p. 22, as Tetrapedia emarginata: Mason, Havana —
Illinois River (Aug.-Oct.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 113
MICRACTINIUM Fresenius, 1858
M. PUSILLUM Fresen. Tiffany, loc. cit., p. 72. pi. 12. f. 301 (1934);
Smith, Bull. Wis. Geol. & Nat. Hist. Surv. 57(1): 125. pi. 28. f. 1-3
(1920).
Richteriella hotryoides (Schmid.) Lemm.
Eddy 1931A, p. 486: Cass, Chandlerville — Sangamon River
(Sept.). Ahlstrom 1936, p. 293: Cook, Evanston— Lake Michi-
gan. Kofoid 1908, pp. 23, 30, as Richteriella hotryoides: Mason,
Havana — Illinois River (May-Nov.). Britton: McHenry, Green-
wood— Nippersink Creek, July 7, 1939, #432. Eddy, loc. cit.:
Menard, Petersburg — Sangamon River (Sept.).
M. QUADRiSETUM (Lemm.) G. M. Smith. Tiffany, loc. cit., f. 302
(1934).
Ahlstrom 1936, p. 293: Cook, Evanston — Lake Michigan.
SCENEDESMUS Meyen, 1829
S. ABUNDANS (Kirch.) Chod. Smith, Trans. Wis. Acad. Sci. 18: 465.
pi. 30, 31. f. 133-140 (1916).
Scenedesmus quadricauda var. abundans Kirch.
Baker 1922, p. 80: Champaign, Urbana — Boneyard Creek.
Transeau 1913B, p. 80, as 6". q. var. abundans: Coles.
S. ABUNDANS var. LONGICAUDA Smith. Smith, loc. cit., p. 467. pi. 30,
f. 121-125 (1916).
Britton: Cook, Evanston — small pond in Calvary Cemetery,
June 23, 1938, #74; E. pond in Memorial Park Cemetery, June
27, 1938, #104.
S. ACUMINATUS (Lag.) Chod. Smith, loc. cit., p. 437. pi. 25. f. 3-5
(1916).
Selenastrum acuminatum Lag.
Transeau 191 3B, p. 80, as Selenastrum acuminatum: Coles,
Charleston — ponds. Britton: Cook, Sag Bridge — swamp, July
13, 1939, #502. Galtsoff 1924, pp. 399, 402: Hancock— Lake
Keokuk — Mississippi River (July). Henderson — Mississippi
River (July, Aug.).
S. ACUTiFORMis Schroed. Smith, loc. cit., p. 456. pi. 26, 29. f. 28, 29,
84-89 (1916).
Britton 1940, p. 71: Cook, Glenview — swamp and temporary
pond about H miles W., May 12, 1938, #56; Morton Grove^
small pond about 1 mile N.W., May 10, 1938, #43; Sag Bridge-
small pond and extensive swamp, Sept. 8, 1939, #1016. Lake,
Waukegan — in Dead River at Dunes Park, May 11, 1939, #255.
S. ARCUATUS Lemm. Smith, loc. cit., p. 449. pi. 26, 29, 30. f. 19, 20,
94-100 (1916).
Ahlstrom 1936, p. 293; Britton: Cook, Evanston— Lake Michi-
114 A CATALOG OF ILLINOIS ALGAE
gan; Sag Bridge — swamp, Sept. 8, 1939, #984. Britton: Lake,
Antioch — channel between Grass Lake and Lake Marie, Sept.
14, 1939, #1029. Eddy 1931B, p. 461: Pulaski, Wetaug— sink-
hole ponds (July, Sept.).
S. ARCUATUs var. platydisca G, M. Smith. Smith, loc. cit., p. 451. pi.
25. f. 11 (1916).
Scenedesmus platydisca (Smith) Chod.
Ahlstrom 1936, p. 293, as S. platydisca; Britton: Cook, Evanston
— Lake Michigan; Palos Park — small shallow ponds, July 13,
Sept. 8, 1939, #535, 536, 978; Sag Bridge — stone-quarry pond,
Sept. 8, 1939, #1007; small pond and extensive swamp, Sept. 8,
1939, #1021. Britton: Lake, Fox Lake— in Fox Lake, Aug. 25,
1939, #951.
S. ARMATUS (Chod.) G. M. Smith. Smith, loc. cit., p. 460. pi. 28-30. f.
53, 90-93, 109, 110 (1916).
Britton 1940, p. 71: Cook, Evanston — small pond in Calvary
Cemetery, June 23, 1938, #74; small greenhouse reservoir E. of
the North Shore Channel at Howard St., June 23, 1938, #75;
Morton Grove — small greenhouse reservoir and small pond
about 1 mile N.W., May 10, 1938, #42, 43. Lake, Highwood—
small pond, May 15, 1938, #73; Wauconda — Bangs Lake, Aug.
24, 1939, #925.
S. BijUGA (Turp.) Lag. Smith, loc. cit., p. 441. pi. 25. f. 2 (1916).
Scenedesmus bijugatus (Turp.) Kuetz.
Transeau 1913B, p. 80; 1916, p. 125: Coles, Charleston — ponds
(Apr., July). Kofoid 1908, p. 31, as 5. bijugatus: Mason, Havana
—Illinois River (May-Sept.). Eddy 1931B, p. 461: Pulaski,
Wetaug- — sink-hole pond (Sept., Dec).
S. BIJUGA var. ALTERNANS (Reinsch) Borge. Smith, loc. cit., p. 447. f.
14, 15 (1916).
Transeau 1913B, p. 80; Coles, Charleston — ponds (Apr.-July).
S. BRAsiLiENSis Bohlin. Smith, loc. cit., p. 458. pi. 26. f. 30, 31 (1916).
Britton: Cook, Palos Park — small shallow ponds, July 13, 1939,
#533, 534; Sag Bridge — small ponds and swamps, Sept. 8, 1939,
#988, 996, 1005, 1016, 1018; Schnells Corner— small ponds in
Elk Grove Forest Preserve, Aug. 8, 1939, #780, 785. Lake, Lake
Zurich— in Lake Zurich, Aug. 24, 1939, #917. McHenry, Mc-
Henry— swamp E. of McCullom Lake, July 6, 1939, #374, 376.
S. CARINATUS (Lemm.) Chod. Smith, loc. cit., p. 462. pi. 26. f. 25
(1916).
Britton: McHenry, Ridgefield — pond about 1 mile N.W., July 7,
1939, #417, 418.
S. DENTicuLATUs Lag. Smith, loc. cit., p. 452. pi. 26. f. 23 (1916).
Kofoid 1908, p. 31: Mason, Havana — Illinois River ("late sum-
mer— early autumn").
CLASSIFIED CATALOG OF ILLINOIS ALGAE 115
S. DiMORPHUS (Turp.) Kuetz. Smith, loc. cit., p. 434. pi. 25, 27, 28. f.
8, 185-195 (1916).
Eddy 1931 A, pp. 480, 483, 486: Cass, Chandlerville— Sangamon
River (Sept.). Johnson & Atwell 1890, p. 19; JelHffe 1893, p. 311 ;
Britton: Cook, Argonne Forest Preserve — ponds and swamps
at 95th St. & 100th & 104th Aves., July 13, 1939, #488, 534;
Chicago — ^Lake Michigan; Evanston — aquarium (Mar.), small
greenhouse reservoir, June 23, 1938, #75, small pond at Simpson
St. and Grosse Point Road, June 27, 1938, #100; Orland Park-
small pond and extensive swamp W. of Wolf Road on 131st St.,
Sept. 8, 1939, #1021. Britton: Lake, Highwood — small pond,
May 15, 1938, #73; Klondike — in Grass Lake and connecting
channel to Fox Lake, Aug. 25, 1939, #945, 948, 969 ; Wauconda—
Bangs Lake, Aug. 24, 1939, #925. Eddy, loc. cit. (1931A): Macon,
Decatur — Lake Decatur (July); Harristown — Sangamon River
(July, Sept.). Britton: McHenry, McHenry — swamp E. of Mc-
Cullom Lake, July 6, 1939, #374, 376. Eddy, loc. cit. (1931A):
Menard, Petersburg — Sangamon River (July, Sept.). Eddy
1931B, p. 461: Pulaski, Wetaug — sink-hole pond (Sept.). Eddy,
loc. cit. (1931A): Sangamon, Illiopolis, Riverton, Springfield —
Sangamon River (June-Sept.).
S. LONGUS Mey. Smith, loc. cit., p. 469. pi. 28, 31. f. 54, 156-158
(1916).
Scenedesmus quadricauda f. horridus Kirch.; S. quadricauda f.
setosus Kirch.
Transeau 1913B, p. 80, as S. q. f. horridus and setosus: Coles.
S. LONGUS var. minutus G. M. Smith. Smith, loc. cit., p. 471. pi. 31.
f. 147-150 (1916).
Scenedesmus minutus (Smith) Chod.
Galtsoff 1924, p. 399, as S. minutus: Carroll, Henderson, Jo
Daviess, Mercer, Rock Island, Whiteside — -Mississippi River
(Aug., Sept.).
S. OBLiQUUS (Turp.) Kuetz. Smith, loc cit., p. 428. pi. 25, 29. f. 7, 63-
68 (1916).
Athrodesmus acutus Ehr.
Solheim & Penfound 1928, p. 87: Champaign, Urbana — small
stream (June). Transeau 1913B, p. 80: Coles, Charleston — pond.
Britton: Cook, Evanston— small pond in Calvary Cemetery,
June 23, 1938, #74; Glenview — swamp and temporary pond
about U miles W., June 23, 1938, #97; Northbrook— small pond
in Somme Forest Preserve, May 15, 1938, #65, swamp about 2\
miles S.W., May 12, 1938, #60. Lake, Highwood— small pond,
May 15, 1938, #73. Kofoid 1908, pp. 23, 31, 292, 316: Mason,
Havana — Illinois River (Apr.-Nov.). Britton: McHenry, Mc-
Henry—swamp E. of McCullom Lake, July 6, 1939, #374. Bailey
116 A CATALOG OF ILLINOIS ALGAE
1845, p. 34, as Arthrodesmus acutus: St. Clair — Mississippi
River.
S. opoLiENsis Richt. Smith, loc. cit., p. 481. pi. 27, 32. f. 49, 181-184
(1916).
Britton: Cook, Park Ridge — DesPlaines River at Touhy Ave.,
July 12, 1939, #452. Lake, Fox Lake— in Fox Lake, Aug. 25,
1939, #950.
S. PROTUBERANS Fritsch & Rich. Tiffany, Contrib. Franz T. Stone
Lab. 6: 68. pi. 12. f. 295 (1934).
Britton: Cook, Sag Bridge— swamp, Sept. 8, 1939, #984; Wheel-
ing—DesPlaines River at Dam #1 (Hintz Road), Aug. 8, 1939,
#777.
S. QUADRICAUDA (Turp.) Breb. Smith, Trans. Wis. Acad. Sci. 18: 473.
pi. 27, 31, 32. f. 39, 172-176 (1916).
Scenedesmus caudatus Corda; 5. genuinus Kirch.; Arthrodesmus
quadricaudatus Ehr.
Bailey 1845, p. 34, as Arthrodesmus quadricaudatus (St. Clair).
Johnson & Atwell 1890, p. 19; Jelliffe 1893, p. 311, as S. caudatus
(Cook). Kofoid 1908, pp. 23, 31, 292, 316, also as 5. genuinus
(Mason). Transeau 1913B, p. 80; 1913C, p. 36; 1916, p. 125
(Coles, Edgar, Moultrie). Galtsoff 1924, pp. 399, 401, 402, 404,
405 (Carroll, Hancock, Henderson, Jo Daviess, Mercer, Rock
Island, Whiteside). Eddy & Simer 1929, p. 62 (Morgan). Eddy
1931A, pp. 480, 483, 476 (Cass, Macon, Menard, Sangamon);
1931B, p. 461 (Pulaski); 1934, pp. 385, 386, 388-395, 397, 399,
400, 402, 403 (Adams, Alexander, Calhoun, Champaign, Han-
cock, Henry, Jackson, Jersey, Macon, Madison, Mason, Massac,
McHenry, Monroe, Ogle, Piatt, Pike, Pulaski, Randolph, St.
Clair, LInion, Whiteside). Britton (Cook, Lake).
Adams, Mississippi River (June). Alexander — Mississippi and
Ohio Rivers (June); Horseshoe Lake (June-Aug.). Calhoun,
Carroll — Mississippi River (June-Sept.). Cass, Chandlerville —
Sangamon River (Sept.). Champaign, Seymour — temporary
pond (Feb.-July); Urbana — park pond (all months). Coles,
Charleston — ponds (Apr.-Nov.). Cook, Chicago — Lake Michi-
gan; Evanston — aquarium (Mar.), small greenhouse reservoir,
June 23, 1938, #75. Edgar, Paris^ — reservoir (July). Hancock,
Henderson — Mississippi River (June-Aug.). Henry, Colona —
slough (June-Aug.). Jackson, Jersey, Jo Daviess — Mississippi
River (June-Sept.). Lake, Waukegan— ditch, July 29, 1938,
#173. Macon, Decatur — park pond (Aug.-Oct.), Lake Decatur
(Mar .-Nov.); Harristown — Sangamon River (June-Sept.). Mad-
ison— Mississippi River (June). Mason, Havana — Illinois River
(all months). Massac — Ohio River (June). McHenry — Fox
CLASSIFIED CATALOG OF ILLINOIS ALGAE 117
River. Menard, Petersburg — Sangamon River (June-Sept.).
Mercer, New Boston — Edwards River (July); Mississippi River
(July, Sept.). Monroe — Mississippi River (June). Morgan,
Meredosia — Illinois River. Moultrie, Sullivan — artificial pond
(Aug.). Ogle, Grand Detour- — slough (June-Aug.). Piatt, Monti-
cello— Sangamon River (June-Aug.). Pike^ — Mississippi River
(June). Pulaski — Mississippi River (June); Wetaug — sink-hole
ponds (July, Sept., Dec). Randolph, Rock Island — Mississippi
River (June-Sept.). Sangamon, Illiopolis, Riverton, Springfield
— Sangamon River (June-Sept.). St. Clair — Mississippi River
(June). Union, Larue— Wolf Lake (June-Aug.). Whiteside —
Mississippi River (July-Sept.); Erie — Rock River Slough and
Hatwood Slough (June-Aug.).
S. QUADRiCAUDA var. QUADRispiNA (Chod.) G. M. Smith. Smith, loc.
cit., p. 479. pi. 27, 31. f. 43, 167-170 (1916).
Britton: Cook, Techny — small pond about 1^ miles S.W., May
12, 1938, #64. Lake, Waukegan — in Dead River at Dunes Park,
May 11, 1939, #255. McHenry, McHenry — swamp on N.E. side
of McCullom Lake, July 6, 1939, #385.
S. QUADRICAUDA var. WESTii G. M. Smith. Smith, loc. cit., p. 480. pi.
32. f. 177-180 (1916).
Britton: Cook, Park Ridge — DesPlaines River at Touhy Ave.,
July 12, 1939, #452; Sag Bridge— swamp, Sept. 8, 1939, #984.
Lake, Fox Lake — in Fox Lake, Grass Lake, Lake Marie, Petite
Lake and connecting channels, July 25, Aug. 25, Sept. 14, 1939,
#604, 605, 942, 944, 945, 948, 950, 951, 953, 954, 969, 1028, 1029.
Order: SIPHONALES
Family: VAUCHERIACEAE
DICHOTOMOSIPHON Ernst, 1902
D. TUBEROSUS (A. Br.) Ernst. Brown, Trans. Amer. Mic. Soc. 48:
102. pi. 20. f. 38, 39 (1929).
Vaucheria tuherosa A. Br.
Forbes 1883 A, p. 495, as Vaucheria tuherosa; Drouet, Field Mus. :
Cook, Chicago — Lake Michigan; Lemont — in running water and
on sides of quarry, coll. by F. Drouet and D. Richards, Apr. 15,
1939; Willow Springs — floating in swamp along Route 4A, coll.
by P. C. Standley, J. A. Steyermark and F. Drouet, Oct. 18,
1938. Dupage, Black Partridge Woods — in a stream, coll. by
P. C. Standley, J. A. Steyermark and F. Drouet, Oct. 18, 1938.
ColHns 1909, p. 431; Brown 1929, p. 102; Smith 1933, p. 529.
118 A CATALOG OF ILLINOIS ALGAE
VAUCHERIA DeCandolle, 1803
V. AVERSA Hass. Brown, loc. ciL, p. 96. pi. 16. f. 14 (1929).
Johnson & Atwell 1890, p. 19: Cook, prairie ditches — (Apr.).
V. GARDNERI Coll. Brown, loc. ciL, p. 100. pi. 18. f. 27 (1929).
Transeau: Coles, Ashmore — pond (Apr.). Brown 1929, p. 100.
V. GEMINATA (Vauch.) D. C. Brown, loc. cit., pi. 18. f. 31 (1929).
Transeau 1913B, p. 89; 1913C, p. 32; 1916, p. 124: Champaign,
Urbana — pond (Apr.). Clark, Casey — ponds (Apr., Nov.). Coles,
Ashmore— on soil in woods (Apr., May), pond and bayou of
Polecat Creek (Apr.); Charleston, Lerna, Mattoon, Wrightsville
- — ponds, pools, springs, swamps and small streams (Feb.-July,
Nov.). Johnson & Atwell 1890, p. 19; O'Hanlon 1930, p. 100:
Cook', Evanston — "Grand Crossing" (Apr.); River Forest —
ditch. Transeau: Cumberland, Bradbury, Greenup — ditch pools
(Apr., Nov.). Douglas, Arcola^ditch (May). Edgar, Paris —
reservoir and ditches (Mar., Apr.). Efl5.ngham, Effingham—
small artificial pond (Dec). Jasper, Rose Hill — streams (Apr.).
Lawrence, Pinkstafif — in a spring (Dec). Montgomery, Wag-
goner— wet-weather pond (Dec). Richland, Calhoun — small
stream, and slough of Bonpas Creek (Apr.). Brown 1929, p. 96.
V. GEMINATA var. DEPRESSA Traus. Transeau, Ohio Jour. Sci. 17: 228
(1917).
Transeau: Clark, Westfield— pond (Apr.). Collins 1918, p. 92.
V. GEMINATA f. RACEMOSA (Vauch.) Walz. Brown, Trans. Amer. Mic.
Soc 48:96 (1929).
Transeau 1913B, p. 89: Coles, Charleston — Kickapoo Creek and
other small streams, ponds, and bayou of Embarrass River
(Apr.-July, Oct.). Lerna — small stream (May). Davis 1904,
p. 82: Cook, Chicago — (Mar., Apr.). Transeau, loc. cit.: Effing-
ham, Effingham — pond (May). Montgomery, Waggoner — wet-
weather pond (Dec). Brown 1929, p. 96.
V. HAMATA (Vauch.) D. C. Brown, loc. cit., p. 98. pi. 19. f. 37 (1929).
Transeau 1913B, p. 89; 1916, p. 124: Coles, Ashmore^Polecat
Creek (Apr.), on soil at pond (Oct.); Lerna — creek (May). Brit-
ton: Cook, Northbrook — small pond at Somme Forest Preserve,
May 15, 1938, #68. Transeau: Jasper, Newton— pond (May).
V. LONGIPES Coll. Brown, loc. cit., p. 99. pi. 18. f. 28 (1929).
Transeau: Coles, Ashore— pond (Apr.). Brown 1929, p. 99.
V. ORNiTHOCEPHALA Ag. Browu, loc. cit., p. 97. pi. 16. f. 15 (1929).
Brown 1929, p. 97.
V. POLYSPERMA Hass. Brown, loc. cit., p. 97. pi. 17. f. 20 (1929).
Transeau 1913B, p. 89: Clark, Casey— ponds (Apr., May).
Coles, Charleston— ponds (June, Oct.); Lerna — pond (Apr.).
Brown 1929, p. 97.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 119
V. REPENS Hass. Brown, loc. cit., p. 94. pi. 15. f. 8 (1929).
Agersborg 1930, p. 106: Macon, Decatur — warm waste-water
ditch (Dec.-Feb.).
V. SESSiLis (Vauch.) D. C. Brown, loc. cit., p. 93. pi. 15. f. 11 (1929).
Transeau 1913B, p. 89; 1913C, p. 32; 1916, p. 124: Clark, Casey
— ponds (Apr,, Oct., Nov.). Coles, Ashmore, Charleston, Lerna,
Mattoon, Wrightsville — ponds, small streams and swamps
(Jan.-June, Oct., Nov.). O'Hanlon 1930, p. 100: Cook, River
Forest. Transeau: Douglas, Arthur — pond (May). Jasper,
Bogota — creek (Aug.). Britton: Kankakee, Kankakee — about 5
miles N. in slough along Route 49, April 18, 1938, #5. Lake,
Everett — small pond, April 18, 1938, #71. Transeau: Lawrence,
Lawrenceville — pool (Apr.), gravel pit (May); Pinkstaff — spring
(Dec). Richland, Calhoun — Bonpas Creek slough (Apr.). Brown
1929, p. 93.
V. TERRESTRis (Vauch.) D. C. Collins, Tufts Coll. Stud. 2(3): 426
(1909).
Transeau 1913B, p. 89; 1913C, p. 36: Coles, Ashmor^-on soil in
woods (Apr.); Charleston — ponds, pools (Apr., May), on soil on
campus (Oct.). O'Hanlon 1930, p. 100: Cook, River Forest —
on banks of DesPlaines River.
Order: ZYGNEMATALES
Family: ZYGNEMATACEAE
MOUGEOTIA Agardh, 1824
M. BOODLEi (W. & G. S. West) Coll. Transeau, Ohio Jour. Sci. 26:
324. pi. 6. f. 78-80 (1926).
Collins 1912, p. 76; Transeau 1913B, p. 78; 1926, p. 324: Coles
Charleston — ponds (Apr.-June, Sept.-Nov.). Douglas, Newman
— pond 4 miles S.W. (May).
M. CALCAREA (CI.) Wittr. Transeau, loc. cit., p. 316. pi. 1. f. 9-14
(1926).
Collins 1912, p. 76; Transeau 1913B, p. 78; 1926, p. 316: Clark,
Casey — pond (Apr.).
M. ELEGANTULA Wittr. Transeau, loc. cit., p. 323. pi. 6. f. 84-87
(1926).
Transeau 1926, p. 323: Coles, Charleston — pond (Apr., May).
M. FLORIDANA Trans. Transeau, Trans. Amer. Mic. Soc. 53: 224
(1934).
Transeau 1934, p. 224.
M. GENUFLEXA (Dillw.) Ag. Transeau, Ohio Jour. Sci. 26: 320. pi. 4.
f. 43, 44 (1926).
Mougeotia mirabilis (A. Br.) Wittr.; Pleurocarpus mirabilis A. Br.
Transeau 1913B, pi 78; 1916, p. 125; 1926, p. 320: Clark, Casey—
120 A CATALOG OF ILLINOIS ALGAE
pond (Apr.). Coles, Charleston — ponds and ditches (Apr.-Aug.,
Oct.); Lerna— ponds (May). Johnson & Atwell 1890, p. 20, as
Pleurocarpus mirabilis; O'Hanlon 1930, p. 98, as M. mirahilis:
Cook, Palos Park — pond (June); Winnetka — (Apr.). Transeau:
Effingham, Effingham — ditch (May). Richland, Olney — Fox
River (Aug.).
M. GRACiLLiMA (Hass.) Wittr. Transeau, loc. cit., p. 325. pi. 6. f. 95,
96 (1926).
Transeau 1926, p. 325: Clark, Casey— pond 3| miles N. (Apr.).
M. NUMMULOIDES (Hass.) DeToni. Transeau, loc. cit., p. 317. pi. 1.
f. 15, 16 (1926).
Mesocarpus nummuloides Hass.
Johnson & Atwell 1890, p. 20, as Mesocarpus nummuloides:
Cook, Evanston — aquarium (Mar.).
M. QUADRANGULATA Hass. Transcau, loc. cit., p. 324. pi. 5. f. 70-72
(1926).
Transeau 1913B, p. 78; 1926, p. 324: Coles, Charleston— ponds
and pools (May).
M. REiNSCHii Trans. Transeau et al.. Trans. Amer. Mic. Soc. 53: 224.
pi. 20. f. 44 (1934).
Mougeotia genufiexa var. gracilis (Kuetz.) Reinsch.
Transeau 1913B, p. 78; 1926, p. 320; Collins 1918, p. 21, as M.
g. var. gracilis: Coles, Charleston, Lerna — ponds and ditches
(Mar.-May, Aug.).
M. ROBUSTA (DeBary) Wittr. Transeau, Ohio Jour. Sci. 26: 318. pi. 3.
f. 39-41 (1926). Czurda in Pascher, Suesswass.-fl. Mitteleur. 9: 73. f.
53 (1932).
Mougeotia robusta var. hiornata wittr.
Transeau 1913B, p. 78; 1916, p. 124; 1926, p. 318; Collins 1918,
also as M. r. var. hiornata: Clay — pond and small stream (May).
Coles, Charleston — ponds, pools and small streams (Apr.-July,
Sept.), on cement near lake (June). Jasper, Bogota — creek 6
miles S.W. (Aug.). Montgomery, Coffeen — reservoir pond
(May).
M. scALARis Hass. Transeau, loc. cit., p. 317. pi. 2. f. 25-27 (1926);
DeToni, Sylloge Algarum 1(2): 712 (1889).
Mesocarpus scalaris DeBary
Transeau 1913B, p. 78; 1916, p. 124; 1926, p. 317: Coles, Ash-
more — ponds (Apr.); Charleston — ponds (May). Johnson &
Atwell 1890, p. 20, as Mesocarpus scalaris: Cook, Winnetka —
(Apr.). Transeau: Montgomery, Coffeen — stream (May).
M. SPHAEROCARPA Wolle. Trauscau, loc. cit., p. 319. pi. 3. f. 28-33
(1926).
Mougeotia divaricata Wolle
Transeau 1913B, p. 78, as M. divaricata: Clark, Casey — pond
CLASSIFIED CATALOG OF ILLINOIS ALGAE 121
(Apr.). Coles, Ashmore, Charleston — ponds and small streams
(May-Jan.). Marion, Kinmundy — small pond (Aug.).
M. TENUIS (CI.) Wittr. Transeau, loc. cit., p. 322. pi. 5. f. 55-59
(1926); Czurda in Pascher, Suesswass.-fl. Mitteleur. 9: 80. f. 66
(1932).
Mougeotia notahilis Hass.; M. transeauii Coll.
Transeau 1913B, p. 78; Collins 1912, p. 77, as M. transeauii;
Transeau 1926, p. 322, as M. notahilis: Coles, Charleston — pond
(May-Nov.). Cumberland, Greenup — Embarrass River (Sept.).
Montgomery, Coflfen — reservoir pond (May).
M, TUMIDULA Trans. Transeau, loc. cit., p. 326. pi. 7. f. 105 (1926).
Transeau 1914, p. 297; 1926, p. 326; Collins 1918, p. 21: Jasper,
Wheeler — Embarrass River (Sept.).
M. viRiDis (Kuetz.) Wittr. Transeau, loc. cit., p. 323. f. 97, 98 (1926).
Transeau 1913B, p. 79; 1926, p. 323; Coles, Charleston — pond
(May).
SIROGONIUM Kuetzing, 1843
S. ILLINOISENSE (Trans.) G. M. Smith. Smith, Freshw. Alg. U. S.,
p. 557 (1933).
Spirogyra illinoisensis Trans.
Transeau 1913B, p. 76; 1914, p. 296; Collins 1918, p. 16, as
Spirogyra illinoisensis ; Smith 1933, p. 557: Coles, Lerna — ponds
(May, June).
S. STICTICUM (Engl. Hot.) Kuetz. Smith, loc. cit., p. 557. f. 383 (1933).
Spirogyra stictica (Engl. Bot.) Wille.
Transeau 1913B, p. 77, as Spirogyra stictica: Clark, Casey —
ponds (Apr., May). Coles, Ashmore — ponds (Apr., May).
Montgomery, Coffeen — ponds (May, June). Moultrie, Sullivan
• — artificial pond (May).
SPIROGYRA Link, 1820
S. AREOLATA Lag. Czurda in Pascher, Suesswass.-fl. Mitteleur. 9: 146.
L 144 (1932).
Transeau 1913B, p. 75: Clark, Casey^ — ponds (Apr., May).
Coles, Charleston — ponds (Apr.-June). Cumberland, Greenup —
pond (May); Jewett — small streams (May). Lawrence, Law-
renceville — gravel pit (Apr.).
S. BORGEANA Trans. Transeau, Ohio Jour. Sci. 16: 23 (1915).
Transeau 1915, p. 23; Collins 1918, p. 13: Coles, Charleston-
pond and stream (May, June).
S. CATENAEFORMis (Hass.) Kuetz. Collins, Tufts Coll. Stud. 2(3) : 108
(1909).
Transeau 1913B, p. 75; 1916, p. 124: Clark— Whetstone Creek
122 A CATALOG OF ILLINOIS ALGAE
(Oct.); Casey— ponds (May). Coles, Ashmore, Charleston,
Dorans, Lerna, Wrightsville — ponds, Kickapoo Creek and other
small streams (all months). Edgar, Paris— ditch (Mar.). Effing-
ham, Effingham — pond (Dec). Jasper, Newton — pond (May).
Lawrence, Lawrenceville — Beaver Ditch (Aug., Sept.); Pink-
staff — bayou of Bee Branch Creek (Dec). Richland, Olney — Fox
River (Aug.).
S. ciRCUMLiNEATA Trans. Transeau, Amer. Jour. Bot. 1: 293. pi. 26.
f. 5, 6, (1914).
Transeau 1913B, p. 75; 1914, p. 293; Collins 1918, p. 13: Clark,
Westfield — ditch (June). Coles, Charleston, Lerna — pond (Apr.,
May). Britton: Cook, Glenview — small pond and swamp about
li miles W. on Glenview Road, May 12, 1938, #57.
S. CLEVEANA Trans. Transeau, et al., Trans. Amer. Mic Soc 53: 226
(1934).
Transeau: Clark, Casey — pond (Apr.).
S. COMMUNIS (Hass.) Kuetz. Collins, Tufts Coll. Stud. 2(3): 109
(1909).
Transeau 1913B, p. 75: Coles, Charleston, Lerna — ponds and
small intermittent streams (May).
S. CONDENSATA (Vauch.) Kuetz. Collins, loc. cit. (1909).
Transeau 1913B, p. 75: Coles, Charleston — ponds and small
streams (Mar.-May, Oct., Nov.).
S. CORRUGATA Trans. Transeau, etal., Trans. Amer. Mic. Soc. 53: 229.
pi. 21. f. 63 (1934).
Transeau 1934, p. 229.
S. CRASSA Kuetz. Collins, Tufts Coll. Stud. 2(3): 112 (1909).
Transeau 1913B, p. 75: Clark, Casey — pond (Sept.). Coles, Ash-
more, Charleston — ponds, pools, Kickapoo Creek and other
small streams (Apr.-Jan.). Johnson & Atwell 1890, p. 19: Cook —
"Big Ditch" (Mar.). Agersborg 1930, pp. 106, 110: Macon,
Decatur — warm waste-water in ditch (Dec-Feb.). Transeau:
Jasper, Bogota — creek 6 miles S.W. (Aug.); Newton — pond
(May).
S. CRASsoiDEA Trans. Transeau, Amer. Jour. Bot. 1: 295. pi. 27. f. 3,
4 (1914).
Spirogyra ellipsospora var. crassoidea Trans.
Transeau 1914, p. 295; Collins 1918, p. 15, as S. e. var. crassoidea:
Coles, Charleston — pond (July, Nov.). Montgomery, Coffeen —
pond (May).
S. DAEDALEA Lag. Collins, Tufts Coll. Stud. 4(7): 14 (1918).
Transeau 1915, p. 24; Collins 1918, p. 14: Montgomery, Coffeen
— pond.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 123
S. DECiMiNA (Muell.) Kuetz. Collins, Tufts Coll. Stud. 2(3): 110
(1909).
Transeau 1913B, p. 75; 1913C, p. 33: Coles, Ashmore — Polecat
Creek (June); Charleston — ponds, ditches, pools, and small
streams (Jan.-June, Sept., Nov.). Johnson & Atwell 1890, p. 20:
Cook, Woodlawn — (Mar.). Transeau: Cumberland, Greenup —
pond (Sept.). Edgar, Paris — reservoir lake (Mar., May). Effing-
ham, Effingham^ — pool (Dec). Lawrence, Pinkstaff^ — small
stream 3 miles E. (Aug., Sept.). Moultrie, Sullivan — cut-off of
Kaskaskia River, and an artificial pond (July).
S. DENTicuLATA Traus. Transeau et al., Trans. Amer. Mic. Soc. 53:
226 (1934).
Transeau 1934, p. 226.
S. DILUTA Wood. Transeau, Ohio Jour. Sci. 16: 27 (1915).
Transeau 1915, p. 27: Montgomery, Coffeen, Donnellson^ — lake
and ponds (June).
S. DiscRETA Trans. Transeau, Ohio Jour. Sci. 34: 420 (1934).
Spirogyra inflata var. foveolata Trans.
Transeau 1913B, p. 76; 1914, p. 291; Collins 1918, p. 13, as S. i.
var. foveolata: Clark, Casey — pond (Apr.). Coles, Charleston —
creek.
S. DiSTENTA Trans. Transeau, loc. cit., p. 420 (1934).
Transeau 1934, p. 420.
S. DUBIA Kuetz. Collins, Tufts Coll. Stud. 2(3): 115 (1909).
Transeau 1913B, p. 75: Coles, Ashmore, Charleston, Lerna —
ponds and pools (May-July); Rardin^ — creek (Aug.). Johnson &
Atwell 1890, p. 20: Cook, Woodlawn— (June). Transeau:
Douglas, Areola, Arthur — ponds (July). Jasper, Wheeler —
Embarrass River (Sept.). Lawrence, Pinkstaff — spring-fed pond
and stream 3 miles E. (July, Aug.). Montgomery, Hillsboro —
Chautauqua Lake (July). Richland, Olney — creek (Aug.).
S. ELLIPSOSPORA Trans. Transeau, Amer. Jour. Hot. 1 : 294. pi. 27. f. 1
(1914).
Transeau 1914, p. 294; 1915, p. 25; 1916, p. 124; Collins 1918,
p. 15: Clark, Casey— ponds (May, July, Nov.). Coles, Charles-
ton— ponds and Kickapoo Creek (Apr.-Nov.). Montgomery,
Coffeen — pond (May, June).
S. FLUViATiLis Hilse. Collins, Tufts Coll. Stud. 2(3): 114 (1909).
Transeau 1913B, p. 75; 1915, p. 26: Clark, Casey— pond (Nov.).
Coles, Ashmore — Polecat Creek (June, Oct.); Charleston —
ponds, ditches, pools. Embarrass River, Kickapoo Creek and
other small streams (Apr.-Dec); Rardin — creek (Aug.). Johnson
& Atwell 1890, p. 20: Cook, Bowmanville — running spring; Jef-
ferson (July). Transeau: Cumberland, Greenup — Embarras
124 A CATALOG OF ILLINOIS ALGAE
River (Sept.). Fayette, Bingham — creek (June). Jasper, Wheeler
• — pond, and Embarrass River (Mar., Sept.). Lawrence, Pink-
staff — small stream (July). Richland, Olney — Creek (Aug.).
S. FORMOSA (Trans.) Czurda. Pascher, Suesswass.-fl. Mitteleur. 9: 203
(1932).
Spirogyra crassa var. formosa Trans.
Transeau 1915, p. 27; Collins 1918, p. 13, as S. c. var. formosa :
Coles, Ashmore — pond (June).
S. GRACILIS (Hass.) Kuetz. Collins, Tufts Coll. Stud. 2(3) : 114 (1909).
Transeau 1913B, p. 75: Clark, Casey- — swampy intermittent
stream (Apr.).
S. GREViLLEANA (Hass.) Kuetz. Collins, loc. cit., p. 117 (1909).
Transeau 1913B, p. 76: Clark, Casey — ponds (Apr.). Coles,
Charleston — ponds, pools and small streams (Mar.-June, Sept.,
Nov.). Fayette, Bingham — creek (Aug.). Jasper, Bogota — creek
6 miles S.W. (Aug.).
S. GROENLANDICA Rosenw. Collins, loc. cit. (1909).
Transeau: Coles, Lerna — pond (May).
S. HASSALLii (Jenn.) Petit. Collins, loc. cit. (1909).
Solheim & Penfound 1928, p. 88: Champaign, Urbana — small
stream (Mar.). Transeau 1913B, p. 76: Clark, Casey- — ponds
(May, Nov.). Coles, Charleston — creek (Feb.). Cumberland,
Greenup — ditch (Nov.).
S. HYDRODICTYA Trans. Transeau, Ohio Jour. Sci. 16: 28 (1915).
Transeau 1915, p. 28; Collins 1918, p. 17: Montgomery, Coffeen
—(May).
S. INCONSTANS Coll. ColHus, Tufts Coll. Stud. 3(2): 73 (1912).
Collins 1912, p. 73; 1918, p. 17 (the Illinois record of Spirogyra
fallax based on material in the collection of Prof. E. N. Transeau
belongs here); Transeau 1913B, p. 76; Clark, Casey — ponds and
small streams (Apr., May). Coles, Charleston, Lerna — ponds
(May). Britton: Cook, Glenview^ — swamp and temporary pond
about H miles W. on Central Road, May 12, 1938, #56. Tran-
seau: Cumberland, Greenup^ — pond (May). Britton: Lake,
Everett — small pond 1 mile S., May 15, 1938, #71. Transeau:
Montgomery, Coffeen^ — pond (May).
S. INFLATA (Vauch.) Rab. Collins, Tufts Coll. Stud. 2(3): 116 (1909).
Transeau 1913B, p. 76; 1916, p. 124: Clark, Casey — ponds and
swampy stream (Apr., May, Sept.). Coles, Ashmore, Charleston,
Dorans, Lerna, Mattoon — ponds, pools, ditches and small
streams (all months). Cumberland, Greenup — 5 miles N. in
Embarrass River (Sept.); Jewett- — pond and small streams
(May). Douglas, Arthur^ — pond (May). Edgar, Paris — reservoir
lake and ditches (Mar.). Effingham, Effingham— (Apr.). Britton
CLASSIFIED CATALOG OF ILLINOIS ALGAE 125
Lake, Everett — small pond about 1 mile S., Apr. 15, 1938, #71.
Transeau: Lawrence, Lawrenceville — gravel pit (Apr.): Pink-
staff — bayou of Bee Branch Creek, and pond (Apr.). Richland,
Calhoun — pond (Apr.).
S. INSIGNIS (Hass.) Kuetz. Collins, loc. cit., p. 117 (1909).
Transeau: Clark, Casey — pond (Apr., May). Coles, Ashmore —
ponds (Apr.).
S. IRREGULARIS Naeg. Collins, Tufts Coll. Stud. 4(7): 18 (1918).
Transeau 1916, p. 124; Collins 1918, p. 18: Coles, Charleston-
ponds (June-Sept.). Douglas, Arthur — pond (July).
S. jUERGENSii Kuetz. Collins, Tufts Coll. Stud. 2(3): 108 (1909).
Transeau 1913B, p. 76; 1915, p. 23: Clark, Casey— ponds (Apr.,
May); Westfield— ditch (June). Coles, Ashmore, Charleston —
ponds and small streams (Apr.-June). Johnson «& Atwell 1890,
p. 20: Cook — prairie ditches (Mar.). Transeau: Cumberland,
Greenup — pond (May), Embarrass River 5 miles N. of (Sept.).
Douglas, Arthur — ponds (May). Lawrence, Lawrenceville^ —
Beaver Ditch (Aug.); Pinkstaff— bayou of Bee Branch Creek
(Mar., Nov.). Montgomery, Coffeen — lake and pond (June).
S. jUGALis (Dillwn.) Kuetz. Collins, loc. cit., p. HI (1909).
Transeau 1913B, p. 76: Coles, Charleston^ — pond (May);
Wrightsville — small pond (Nov.).
S. LAGERHEiMii Wittr. Collins, Tufts Coll. Stud. 4(7): 13 (1918).
Transeau 1915, p. 24; Collins 1918, p. 13: Clark, Casey^ — pond 3
miles N. of (Apr.); Westfield — artesian pond (Apr.). Coles,
Lerna — pond (May). Cumberland, Bradbury — pool (Apr.).
S. LONGATA (Vauch.) Kuetz. Collins, Tufts Coll. Stud. 2(3): 107
(1909).
Transeau 1913B, p. 76: Champaign, Urbana — pond E. of (Apr.).
Clark, Casey — pond (Apr.); Westfield — artesian pond (Apr.).
Coles, Ashmore, Charleston^ — ponds and small streams (Mar.-
June, Sept.). Johnson & Atwell 1890, p. 20: Cook, Woodlawn;
"Big Ditch" (Mar.-June). Transeau: Cumberland, Greenup,
Jewett — ponds and ditches (Apr., May). Edgar, Paris — reservoir
lake (Mar., Apr.). Lawrence, Lawrenceville — ditch (May).
S. MAjuscuLA (Kuetz.) Czurda. Pascher, Suesswass.-fl. Mitteleur. 9:
204. f. 220 (1932).
Spirogyra orthospira Naeg.
Collins 1912, p. 72; Transeau 1913B, p. 77: Coles,Charleston,
Lerna — ponds, pools, ditches and small streams (Apr.-July,
Nov.). Johnson & Atwell 1890, p. 20, as 6". orthospira: Cook,
Woodlawn — (June). Transeau: Cumberland, Greenup— ditch
(Nov.). Douglas, Areola, Arthur — ponds and pools (May).
Effingham, Eflfingham^pond and pool (May). Montgomery,
126 A CATALOG OF ILLINOIS ALGAE
Coffeen — ponds (May). Moultrie, Sullivan — cut-ofif of Kaskaskia
River (July).
S. MAXIMA (Hass.) Wittr. Collins, Tufts Coll. Stud. 2(3): 112 (1909).
Transeau 1913B, p. 76; 1913C, p. 33: Clay, Sailor Spring — creek
N. of (Aug.). Coles, Ashmore, Charleston — ponds, bayous and
small streams (May-Nov.).
S. MiCROPUNCTATA Trans. Transeau, Ohio Jour. Sci. 16: 27 (1915).
Transeau 1915, p. 27; Collins 1918, p. 16: Coles, Charleston —
ponds (May, June).
S. MiRABiLis (Hass.) Kuetz. Czurda in Pascher, Suesswass.-fl. Mit-
teleur. 9: 142. f. 138 (1932).
Transeau: Coles, Charleston — pool (July). Johnson & Atwell
1890, p. 20: Cook— "Old Ditch" (Mar.). Transeau: Jasper,
Wheeler — Embarrass River 7 miles E. of (Sept.).
S. NARCissiANA Trans. Transeau, Amer. Jour. Bot. 1: 290. pi. 25. f.
4-8 (1914).
Transeau 1913B, p. 76; 1914, p. 290; Collins 1918, p. 15: Coles,
Charleston — pond (Sept., Oct.).
S. NEGLECTA (Hass.) Kuetz. ColHns, Tufts Coll. Stud. 3(2) : 73 (1912).
Spirogyra ternata Ripart.
Collins 1909, p. 114, as S. ternata; 1912, p. 73; Transeau 1913B,
p. 76: Clark, Casey — ponds (July, Sept.). Coles, Charleston —
Kickapoo Creek, ponds, and other small streams (Mar.-Nov.).
Johnson & Atwell 1890, p. 20: Cook— "Big Ditch" (Apr.). Tran-
seau: Douglas, Arthur — pond (July). Forbes & Richardson 1913,
p. 506, as 5. ternata: Grundy, Dresden Heights — DesPlaines
River (Aug., Sept.). Transeau: Moultrie, Sullivan — pond (May,
July). Richland, Olney — creek (Aug.).
S. NiTiDA (Dillw.) Link. Collins, Tufts Coll. Stud. 2(3): 110 (1909).
Transeau 1913B, p. 77; 1913C, p. 34; 1916, p. 124: Clark, Casey
— ponds (July, Sept., Nov.). Coles, Charleston, Wrightsville —
ponds (June-Oct.). Johnson & Atwell 1890, p. 20: Cook, Wood-
lawn; "Big Ditch" (Mar.-June). Transeau: Jasper, Wheeler —
ponds (Aug.-Nov.). Montgomery, Hillsboro — Chautauqua Lake
(July).
S. NOVAE-ANGLIAE Trans. Transeau, Ohio Jour. Sci. 16: 26 (1915).
Transeau 1915, p. 26; Collins 1918, p. 15: Montgomery, Coffeen
— prairie pond (June).
S. occiDENTALis (Traus.) Czurda, Pascher, Suesswass.-fl. Mitteleur.
9: 183. f. 190 (1932).
Spirogyra velata var. occidentalis Trans.
Transeau 1914, p. 294, as S. v. var. occidentalis: Clark, Oilfield —
pond (May). Coles, Lerna — stream and pond (May). Lawrence,
Lawrenceville — gravel-pit (May).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 127
S. PARVULA (Trans.) Czurda. Pascher, loc. cii., p. 170. f. 174 (1932).
Spirogyra catenaeformis var. parvula Trans.
Transeau 1914, p. 292; Collins 1918, p. 12, as 5. c. var. parvula:
Clark, Casey, Oilfield — ponds (Apr.). Coles, Ashmore, Charles-
ton, Lerna — ponds (May, June). Lawrence, Lawrenceville —
ditch (May).
S. PETITIANA Trans. Transeau et al., Trans. Amer. Mic. Soc. 53: 225
(1934).
Transeau 1913B, p. 77: Coles, Charleston — pond ("summer").
S. PORTiCALis (Muell.) CI. Collins, Tufts Coll. Stud. 2(3): 108 (1909).
Solheim & Penfound 1928, p. 88: Champaign, Urbana — small
stream N. of (Mar.-May). Transeau 1913B, p. 77: Clark, Casey
— pond (Apr., May). Coles, Ashmore, Charleston, Dorans, Loxa,
Wrightsville — ponds, ditches, Embarrass River and small creeks
(Oct.-May). Cumberland, Jewett — ponds S.W. of (May).
Douglas, Arthur — ponds (May). Edgar, Paris — reservoir and
ditch (Mar.). Efl&ngham, Effingham — ponds (May). Jasper,
Bogota — creek 6 miles S.W. of (Aug.). Lawrence, Lawrenceville
— ditch (May), gravel-pit N.E. of (Apr.); PinkstafiF — pond
(Mar.). Montgomery, CofTeen — pond (May). Richland, Olney —
creek (Aug.).
S. PRATENsis Trans. Transeau, Amer. Jour. Bot. 1: 292. pi. 25, 26. f.
12-14, 1, 2 (1914).
Transeau 1914, p. 292; Collins 1918, p. 15: Clark, Casey — ponds
(May). Coles, Charleston — ponds and small streams (Apr.-July,
Oct., Nov.). Effingham, Effingham — pool (May). Montgomery,
Cofifeen — pond (May).
S. PROPRIA Trans. Transeau, Ohio Jour. Sci. 16: 25 (1915).
Transeau 1915, p. 25; Collins 1918, p. 15: Montgomery, Coffeen.
S. PROTECTA Wood. Collins, Tufts Coll. Stud. 2(3): 118 (1909).
Transeau 1915, p. 29; 1916, p. 124: Clark, Casey — ponds and
small stream (Apr., May); Martinsville — pond (Apr.). Coles,
Ashmore, Charleston, Lerna — ponds, pools and small streams
(Apr., May). Cumberland, Jewett — stream S.W. of (May).
Jasper, Wheeler — pond (Mar.). Lawrence, Pinkstaff — spring-fed
pond 3 miles E. of (July). Richland, Calhoun — pond (Apr.).
S. PUNCTiFORMis Trans. Transeau, Amer. Jour. Bot. 1: 294. pi. 26.
f. 7 (1914).
Transeau 1913B, p. 77; 1914, p. 294; Collins 1918, p. 15: Coles,
Charleston — ponds (May, July).
S. QUADRATA (Hass.) Petit. Collins, Tufts Coll. Stud. 2(3) : 116 (1909).
Transeau 1913B, p. 77: Coles, Charleston- — pond (May, June).
Johnson & Atwell 1890, p. 20: Cook, Woodlawn (Apr.).
S. RECTANGULARis Trans. Transeau, Amer. Jour. Bot. 1: 291. pi. 25.
f. 9-11 (1914).
128 A CATALOG OF ILLINOIS ALGAE
Transeau 1914, p. 291; Collins 1918, p. 16: Coles, Ashmore,
Charleston, Lerna — ponds (Apr., May).
S. REFLEXA Trans. Transeau, Ohio Jour. Sci. 16: 28 (1915).
Transeau 1915, p. 28; Collins 1918, p. 16: Clark, Casey, Oilfield-
ponds (May). Coles, Lerna — ponds. Montgomery, CofTeen, Don-
nellson — ponds (May).
S. RETICULATA Nordst. ColHns, Tufts Coll. Stud. 2(3): 17 (1909).
Transeau: Coles, Charleston, Lerna- — ponds and pools (May).
Lawrence, Lawrenceville — gravel pit (May).
S. RUGOSA (Trans.) Czurda. Pascher, Suesswass.-fl. Mitteleur. 9: 156
(1932).
Spirogyra tenuissima var. rugosa Trans.
Transeau 1913B, p. 77; 1914, p. 291; Collins 1918, p. 13, as 5. /.
var. rugosa: Clark, Casey — ponds (Apr.). Coles, Charleston,
Dorans, Lerna, Wrightsville — small streams, ponds and ditches
(Apr., May).
S. SCROBICULATA (Stockm.) Czurda. Pascher, loc. cit., p. 182. f. 189.
Spirogyra varians var. scrohiculata Stockm.
Transeau 1915, p. 23; Collins 1918, p. 12, as S. v. var. scrohicu-
lata: Coles, Charleston, Dorans — creek and pond (May). Law-
rence, Pinkstaff — pond (Mar.).
S. SETiFORMis (Roth) Kuetz. Collins, Tufts Coll. Stud. 2(3): 111
(1909).
Transeau 1913B, p. 77; 1913C, p. 34; 1916, p. 124: Coles, Ash-
more, Charleston — ponds (all months). Lawrence, Pinkstaff —
pond 3 miles E. of (Oct.).
S. siNGULARis Nordst. DeToni, Sylloge Algarum 1(2): 770 (1889);
Transeau MSS.
Britton: Lake, Everett — small pond about 1 mile S., Apr. 15,
1938, #71.
S. SPREEIANA Rab. Collins, Tufts Coll. Stud. 2(3): 116 (1909).
Transeau 1913B, p. 77: Coles, Ashmore, Charleston — ponds and
small streams (Apr.-June, Dec). Johnson & Atwell 1890, p. 20;
Britton: Cook, Glenview — swamp and temporary pond about
U miles W. on Central Road, May 12, 1938, #56; Woodlawn—
"Big Ditch" (Mar.-June). Transeau : Lawrence, Lawrenceville—
gravel pit (Apr.).
S. SUBMAXIMA Trans. Transeau, Amer. Jour. Bot. 1 : 295. pi. 27. f. 3, 4
(1914).
Transeau 1913B, p. 77; 1914, p. 295; 1915, p. 27; Collins 1918,
p. 14: Coles, Ashmore, Charleston— ponds and bayou of Polecat
Creek (Mar.-Jan.). Douglas, Arthur — pond (May).
S. TENUISSIMA (Hass.) Kuetz. Collins, Tufts Coll. Stud. 2(3): 115
(1909).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 129
Transeau 1913B, p. 77; 1916, p. 124: Clark, Casey — ponds and
ditches (Apr., May, Nov.). Coles, Ashmore, Charleston, Dorans,
Humboldt, Lerna — ponds, pools, ditches and small streams
(Jan.-May, Nov.), laboratory aquaria (Mar.), on soil (May).
Johnson & Atwell 1890, p. 20: Cook, Evanston — aquarium
(Mar.). Transeau: Cumberland, Greenup^ — ditch (Nov.); Jewett
— pond and stream S.W. of (May). Edgar, Paris — ditch (Mar.).
Effingham, Effingham — pond and pool (Dec). Jasper, Bogota —
creek 6 miles S.W. of (Aug.); Wheeler — pond (Apr.). Richland,
Calhoun- — pond (Apr.).
S. TEODOREsci Trans. Transeau, Ohio Jour. Sci. 34: 420 (1934).
Spirogira varians var. minor Teodor.
Transeau 1915, p. 23; Collins 1918, p. 12, as S. v. var. minor.
S. TETRAPLA Trdns. Transeau, Amer. Jour. Hot. 25: 528. f. 18-19
(1928).
Transeau 1938, p. 528. "Central Illinois" (Apr., May).
S. TRIPLICATA (Coll.) Trans. Collins, Tufts Coll. Stud. 2(3): 110
(1909); Transeau, MSS.
Spirogyra decimina var. triplicata Coll.
Transeau 1913B, p. 75: Clark, Casey — pond (Sept.). Coles,
Charleston — ponds and small streams (Mar.-Jan.). Effingham
Effingham- — small stream (Aug., Dec). Forbes & Richardson
1913, p. 535: Marshall, Henry — Illinois River. Peoria, Chilli-
cothe — Illinois River.
S. VARIANS (Hass.) Kuetz. Collins, loc. at., p. 108 (1909).
Transeau 1913B, p. 78; 1913C, p. ZZ', 1916, p. 124: Clark-
Whetstone Creek (June); Casey, Westfield^ — ponds (Apr., May).
Coles, Ashmore, Charleston, Lerna, Loxa, Mattoon, Wrights-
ville — ponds, pools, springs, ditches, swamps. Embarrass River,
Kickapoo Creek and other small streams (all months). Johnson
& Atwell 1890, p. 20; Britton: Cook, Evanston, Hawthorne —
ditches (Mar.-June) ; Niles — small shaded pond at Dempster
Golf Club, May 10, 1938, #49; Wood lawn— ditches (Mar.-June).
Transeau: Cumberland, Greenup — pond (Apr., May); Jewett —
stream S.W. of (May). Douglas, Arthur — pond and drainage
ditch (May). Edgar, Paris — reservoir (Mar., Apr.). Effingham,
Effingham — pond (May). Lawrence, Lawrenceville — ditch
(May); Pinkstaff — pond (Mar., Apr.). Montgomery, Coffeen —
pond and streams (May). Moultrie, Sullivan— pond (July).
S. VELATA Nordst. Collins, Tufts Coll. Stud. 4(7): 14 (1918).
Transeau: Coles, Charleston, Lerna — small stream and pond
(Apr.-June).
S. WABASHENSis Tiff. Tiffany, Bot. Gaz. 83: 202. pi. 9. f. 1 (1927).
Tiffany 1927, p. 202: White, Brownsville— Railroad pool 3^
miles S. of (May).
130 A CATALOG OF ILLINOIS ALGAE
S. WEBERi Kuetz. Collins, Tufts Coll. Stud. 2(3): 116 (1909).
Solheim & Penfound 1928, p. 88: Champaign, Urbana^ — small
stream N. of (Mar.). Transeau 1913, p. 78; 1913C, p. 33: Clark,
Casey — pond (Apr.). Coles, Ashmore — pond (May), Polecat
Creek (Apr.); Charleston— ponds, ditches, Kickapoo Creek and
other small streams (Nov.-July). Edgar, Paris — reservoir (Apr.).
Effingham, Effingham — pond (May). Montgomery, Coffeen—
stream (May).
ZYGNEMA Agardh, 1824
Z. ADPECTINATUM Trans. Transeau et al., Trans. Amer. Mic. Soc. 53:
209. pi. 17. f. 6 (1934).
Transeau 1934, p. 209.
Z. AZUREUM Taft. Trans, et al., loc. cit., p. 214. pi. 17. f. 3 (1934).
Transeau 1934, p. 214: Coles, Ashmore— (Apr.).
Z. CATENATUM Trans. Transeau et al., loc. cit., p. 213 (1934).
Zygnema cruciatum var. coeruleum Trans.
Transeau 1915, p. 22; Collins 1918, p. 8, as Z. c. var. coeruleum;
Transeau et al. 1934, p. 213: Clark, Casey — pond.
Z. COLLINSIANUM Trans. Transeau, Amer. Jour. Bot. 1: 289. pi. 25.
f. 1-3 (1914).
Transeau 1913B, p. 74; 1914, p. 289; Collins 1918, p. 8: Clark,
Briscoe, Casey, Oilfield — ponds and ditches (Apr., May). Cum-
berland, Bradbury— pool (Apr.).
Z. CONSPICUUM (Hass.) Trans. Transeau et al.. Trans. Amer. Mic.
Soc. 53: 208. pi. 17. f. 2 (1934).
Zygnema pectinatum var. conspicuum (Hass.) Kirch.
Transeau 1915, p. 21 ; Collins 1918, p. 7, as Z. p. var. conspicuum:
Transeau et al. 1934, p. 208.
Z. CRUCIATUM (Vauch.) Ag. CoHins, Tufts Coll. Stud. 2(3): 104
(1909).
Transeau 1915, p. 21: Coles, Charleston — ponds (Apr.-Nov.).
Transeau: Montgomery, Coffeen — pond (May).
Z. CYLINDRICUM Trans. Transeau, Ohio Jour. Sci. 16: 22 (1915).
Transeau 1915, p. 22; Collins 1918, p. 8: Coles, Ashmore— pond
(Apr.).
Z. DECUSSATUM (Vauch.) Trans. Transeau, Amer. Jour. Bot. 1: 290
(1914).
Transeau 1914, p. 290; Collins 1918, p. 8: Clark, Casey— ponc^
(July); Oilfield — ditch (May). Coles, Ashmore, Charleston —
ponds and pools (May-Nov.). Douglas, Arthur— pond (July).
Lawrence, Lawrenceville — Beaver Ditch (Aug.). Montgomery,
CofTeen — pond (May). Moultrie, Sullivan — pond (July).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 131
Z. EXCRASSUM Trans. Transeau, et al., Trans. Amer. Mic. Soc. 53:
209. pi. 27. f. 14 (1934).
Zygnema pectinatum var. cvassum Trans.
Transeau 1915, p. 21; Collins 1918, p. 7, as Z. p. var. crassum;
Transeau, et al. 1934, p. 209: Clark, Casey— pool (May).
Z. INSIGNE (Hass.) Kuetz. Collins, Tufts Coll. Stud. 2(3): 104 (1909).
Transeau 1913B, p. 74; 1916, p. 124: Clark, Casey— pond (Apr.).
Coles, Ashmore, Charleston, Lerna — ponds, pools, ditches and
small intermittent streams (Apr.-June), on soil (May). Cumber-
land, Greenup — pond (Apr.). Douglas, Areola — ditch (May).
Britton : Lake, Everett— small pond 1 mile S., May 15, 1938, #71.
Z. LEiosPERMUM DcBary. Collins, loc. cit. (1909).
Transeau 1916, p. 124: Coles, Charleston— pools (May). Britton:
Lake, Northbrook — small pond at Somme Forest Preserve,
May 15, 1938, #68.
Z. NEOCRUCIATUM Trans. Transeau, et al., Trans. Amer. Mic. Soc. 53:
212 (1934).
Transeau, et al. 1934, p. 212.
Z. NEOPECTINATUM Trans. Transeau, et al., loc. cit., p. 209. pi. 27. f. 7
(1934).
Transeau, et al. 1934, p. 209.
Z. PECTINATUM (Vauch.) Ag. Collins, Tufts Coll. Stud. 2(3): 103
(1909).
Zygnema pectinatum var. anomalum (Ralfs) Kirch. ; Z. pectinatum
var. decussatum (Vauch.) Kirch.
Transeau 1913B, p. 74, also as Z. p. var. anomalum and decus-
satum; 1913C, p. 40; 1915, p. 21; 1916, p. 125: Clark, Casey-
pond (Apr., May). Coles, Ashmore, Charleston, Lerna — ponds,
pools, ditches and small streams (all months), laboratory aquaria
(July). Jasper, Newton — small stream (Apr.); Wheeler^ — pond
(Apr., Aug.). Lawrence, Lawrenceville — ditch E. of (May).
Montgomery, CofTeen — ponds (May, June).
Z. STELLINUM (Vauch.) Ag. Collins, loc. cit., p. 104 (1909).
Transeau 1913B, p. 74; 1913C, p. Z2>; 1915, p. 22; 1916, p. 124:
Clark, Casey— pond (Apr.); Oilfield— ditch (May). Coles, Ash-
more, Charleston, Lerna — ponds, pools, ditches, bayous and
small streams (Mar .-July), on soil (May), laboratory aquaria
(Dec). Cumberland, Greenup — ponds (Apr.), ditch pools
(Nov.); Jewett — pond S.W. of (May). Edgar, Paris — reservoir,
ditches and pools (Mar., Apr.). Lawrence, Lawrenceville —
Beaver Ditch and gravel pit 5 miles N.E. of (Apr., Aug., Sept.);
Pinkstaff — ponds E. of (Mar., Apr.). Montgomery, Waggoner —
wet-weather pond (Dec). Richland, Calhoun — pools and slough
of Bonpas Creek (Apr.).
132 A CATALOG OF ILLINOIS ALGAE
Z. STERILE Trans. Transeau, et al., Trans. Anier. Mic. Soc. 53: 212
(1934).
Transeau, et al. 1934, p. 212.
Z. SUBCRUCIATUM Trans. Transeau, et al., Trans. Amer. Mic. Soc. 53:
212 (1934).
Transeau, et al. 1934, p. 212. Britton: Cook, Glenview — swamp
and temporary pond about 1^ miles W. on Central Road, May
12, 1938, #56.
Z. SUBTILE Kuetz. Czurda in Pascher, Suesswass.-fl. Mitteleur. 9: 126
(1932).
Transeau: Cumberland, Jewett — stream S. of (May).
Z. VAUCHERii Ag. Rabenhorst, Fl. Eur. Algar. 3: 250 (1868); Tran-
seau, MSS.
Transeau: Montgomery, Coffeen- — lake (June).
ZYGNEMOPSIS (Skuja) Transeau, 1934
Z. DECUSSATA Trans. Transeau, et al., Trans. Amer. Mic. Soc. 53: 214
(1934).
Debarya decussata Trans.
Transeau 1915, p. 19; 1916, p. 124; 1925, p. 197; Collins 1918,
p. 19, as Debarya decussata: Coles, Charleston- — ponds (Apr.,
May). Montgomery, Coffeen — pond (May).
ZYGOGONIUM Kuetzing, 1843; DeBary, 1885
Z. ERICETORUM Kuetz. Trauscau, Ohio Jour. Sci. 33: 158 (1933).
Zygogonium decussatum Kuetz.
Johnson & Atwell 1890, p. 20, as Z. decussatum: Cook, Evanston
— aquarium (Mar.).
Family: MESOTAENIACEAE
GENICULARIA DeBary, 1858
G. SPIROTAENIA DeBary. West & West, Brit. Desmid. 1: 36. pi. 2, 5.
f. 4-6, 3, 4 (1904).
Agersborg 1930, pp. 108, 113: Macon, Decatur— warm waste-
water ditch (Dec. -Feb.).
GONATOZYGON DeBary, 1856
G. BREBissoNii DeBary. West & West, loc. cit., p. 31. pi. 1. f. 8-11
(1904).
Kofoid 1908, p. 61: Mason, Havana — Illinois River (Mar.).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 133
NETRIUM Naegeli, 1849; Luetkemueller, 1902
N. DIGITUS (Ehr.) Itzigs. & Rothe. West & West, loc. cit., p. 64. pi. 6.
f. 14-16 (1904).
Transeau: Clark, Casey — pond (May). Britton: McHenry, Har-
vard— swamp about 2 miles N.E., July 8, 1939, #436. Eddy
193 IB, pp. 451, 462: Pulaski, Wetaug — sink-hole ponds (Apr.,
July, Sept., Dec).
ROYA W. & G. S. West, 1896; Hodgetts, 1920
R. OBTUSA (Breb.) W. & G. S. West. West & West, loc. cit., p. 107. pi.
10. f. 27 (1904).
Closterium obtusum Breb.
Johnson & Atwell 1890, p. 20, as Closterium obtusum: Cook,
Glencoe — ( Apr . ) .
Family: DESMIDIACEAE
ARTHRODESMUS Ehrenberg, 1838
A. CONVERGENS Ehr, West & West, Brit. Desmid. 4: 106. pi. 116. f-
4-13 (1912).
Britton: Cook, Sag Bridge — small ponds, July 13, Sept. 8, 1939,
#507, 997, 998; Schnells Corner— pond at Elk Grove Forest Pre-
serve, June 22, 1939, #327. Lake, Volo— bog at Tamarack Farm,
June 3, 1939, #294.
CLOSTERIUM Nitzsch, 1817
C. ACEROSUM (Schr.) Ehr. West & West, Brit. Desmid. 1: 146. pi. 18.
f. 2-5 (1904).
Kofoid 1903, p. 516; 1908, pp. 11, 60, 292, 319 (Mason). Solheim
& Penfound 1928, p. 88 (Champaign). Eddy 1931A, p. 486
(Macon, Menard); 1931B, pp. 451, 462 (Pulaski); 1934, pp. 385,
386, 389-391, 393, 394, 396, 399, 402, 403 (Adams, Alexander,
Calhoun, Champaign, Hancock, Henry, Jersey, Macon, Madi-
son, Mason, McHenry, Ogle, Piatt, Pike, St. Clair, Union,
Whiteside). Transeau (Coles). Britton (Cook).
Adams — Mississippi River (June). Alexander — Horseshoe
Lake (June-Aug.). Calhoun — Mississippi River (June). Cham-
paign, Urbana^Ox-bow pond (May-Aug.), small stream N. of
(Apr.-June). Coles, Charleston— pond (Mar.). Cook, Morton
Grove — small reservoir, May 10, 1938, #42. Hancock — Missis-
sippi River (June). Henry, Colona — slough (June-Aug.). Jersey
— Mississippi River (June). Macon, Decatur — park pond and
Lake Decatur (Mar.-Dec); Harristown^ — Sangamon River
134 A CATALOG OF ILLINOIS ALGAE
(Sept.). Madison — Mississippi River (June). Mason, Havana —
Illinois River (all months) ; Topeka — Quiver Creek (Sept.-Nov.).
McHenry, Algonquin — Fox River ("summer"). Menard, Peters-
burg— Sangamon River (Sept.). Ogle, Byron, Grand Detour —
sloughs (June-Aug.). Piatt, Monticello — Sangamon River (May-
Nov.). Pike — Mississippi River (June). Pulaski, Wetaug — sink-
hole ponds (Apr., July, Sept., Dec.). St. Clair — Mississippi River
(June). Union, Larue — Wolf Lake (June-Aug.). Whiteside, Erie
— Hatwood Slough (June-Aug.); Sterling — Rock River ("sum-
mer").
C. ACEROSUM var. elongatum Breb. West & West, loc. ciL, p. 148. f. 1
(1904).
Britton 1940, p. 71: Cook, Morton Grove — small pond about 1
mile N.W., May 10, 1938, #43.
C. ACUTUM Breb. West & West, loc. ciL, p. 177. pi. 23. f. 9-14 (1904).
Eddy 1931 A, pp. 480, 483, 486: Cass, Chandlerville — Sangamon
River (Sept.). Macon — Lake Decatur (June, Sept.); Harristown
—Sangamon River (Sept.). Menard, Petersburg— Sangamon
River (Sept.). Piatt, Monticello — Sangamon River (July). San-
gamon, Illiopolis, Riverton, Springfield — Sangamon River
(Sept.).
C. BRAUNii Reinsch. Krieger in Rab., Kryptog.-fl. Deutsch. 13(1):
343. pi. 30. f. 2 (1937).
Transeau: Clark, Casey — pond (May).
C. DiANAE Ehr. West & West, Brit. Desmid. 1: 130. pi. 15. f. 1-6
(1904).
Johnson & Atwell 1890, p. 20: Cook— "Big Woods" (Apr.).
C. DIDYMOTOCUM Ralfs. Krieger in Rab., Kryptog.-fl. Deutsch. 13(1):
325. pi. 26. f. 1-2 (1937).
Transeau: Clark, Casey — pond (May).
C. EHRENBERGii Meucgh. Wcst & Wcst, Brit. Desmid. 1: 143. pi. 17.
f. 1-4 (1904).
Transeau: Coles, Ashmore — pond (Nov.).
C. GRACILE Breb. West & West, loc. ciL, p. 166. pi. 21. f. 8-12 (1904).
Kofoid 1903, p. 516; 1908, pp. 61, 292, 319: Mason, Havana-
Illinois River (Mar.-Dec); Topeka — Quiver Creek (Dec, Jan.).
C. GRACILE var. ELONGATUM W. & G. S. Wcst. West & West, loc. cit.,
p. 168. f. 14-16 (1904).
Eddy 1931B, p. 462: Pulaski, Wetaug — sink-hole pond (Dec).
C. INTERMEDIUM Ralfs. Krieger in Rab., Kryptog.-fl. Deutsch. 13:
335. pi. 28, 29. f. 5, 6, 8 (1937).
Closterium striolatum var. intermedium Ehr.; C. subtruncatiim West
& West.
Johnson & Atwell 1890, p. 20, as C. s. var. intermedium: Cook —
CLASSIFIED CATALOG OF ILLINOIS ALGAE 135
"Big Woods" (Apr.). Eddy 1931B, p. 462, as C. suhtruncatum:
Pulaski, Wetaug — sink-hole pond (Dec).
C. JUNCIDUM var. BREVIOR Roy. West & West, Brit. Desmid. 1 : 129.
pi. 14. f. 15-16 (1904).
Transeau: Clark, Casey — pond (May).
C. LANCEOLATUM Kuetz. West & West, loc. cit., 149. pi. 18. f. 7
(1904).
Britton 1940, p. 71: Cook, Morton Grove^ — small pond about 1
mile N.W., May 10, 1938, #43.
C. LEiBLEiNii Kuetz. West & West, loc. cit., p. 141. pi. 16. f. 9-14
(1904).
Transeau: Coles, Charleston — ponds (Jan., May).
C. LiTTORALE Gay. West & West, loc. cit., p. 155. pi. 19. f. 14 (1904).
Britton 1940, p. 71: Cook, Morton Grove — small greenhouse
reservoir. May 10, 1938, #42.
C. LUNULA (Muell.) Nitz. West & West, loc. cit., p. 150. pi. 18. f. 8-9
(1904).
Transeau: Clark, Casey — pond (May). Coles, Ashmore— pond
(June). Kofoid 1903, p. 516; 1908, pp. 11, 61, 319: Mason, Ha-
vana— Illinois River (all months); Topeka — Quiver Creek (Apr.,
(Sept.-Nov.).
C. MONILIFERUM (Bory) Ehr. West & West, loc. cit., p. 142. pi. 16. f.
15, 16 (1904).
Eddy 1931 A, pp. 483, 486: Cass, Chandlerville— Sangamon
River (July, Sept.). Solheim & Penfound 1928, p. 88; Eddy 1934,
p. 387: Champaign, Mahomet- — Sangamon River (Aug.) ; Urbana
— small stream N. of (Apr.-Aug.). Transeau: Clark, Casey —
small stream and pond (Apr., May). Coles, Ashmore, Charleston
— ponds and small streams (May, July, Nov.). Johnson & Atwell
1890, p. 20; Eddy 1927B, pp. 215, 222: Cook, Chicago— Lake
Michigan (July); Summerdale — roadside (July). Transeau:
Douglas, Arthur— pond (May). Eddy, loc. cit. (1931A, 1934):
Macon, Harristown — Sangamon River (Sept.). Eddy 1931B,
p. 462: Pulaski, Wetaug— sink-hole ponds (Apr., Sept., Dec).
C. PARVULUM Naeg. West & West, loc. cit., 133. pi. 15. f. 9-12 (1904).
Transeau: Coles, Charleston — pond (May).
C. PRITCHARDIANUM Arch. Wcst & West, loc. cit., p. 172. pi. 22. f. 6-
14 (1904).
Transeau: Clark, Casey — pond (May). Coles, Charleston —
ponds (Jan.).
C. STRIGOSUM Breb. West & West, loc. cit., p. 165. pi. 21. f. 6-7 (1904).
Eddy 1931B, p. 462: Pulaski, Wetaug — sink-hole pond (Dec).
C. STRIOLATUM Ehr. Krieger in Rab., Kryptog-fl. Deutsch. 13 (1):
337. pi. 28. f. 8, 9; pi. 29. f. 9 (1937).
136 A CATALOG OF ILLINOIS ALGAE
Closterium striolatum var. elongatum Rab.
Johnson & Atwell 1890, p. 20, as C. s. var. elongatum: Cook —
'Big Ditch" (Mar.).
C. TURGiDUM Ehr. West «& West, Brit. Desmid. 1: 170. pi. 22. f. 4-5
(1904).
Transeau: Clark, Casey — small stream and pond (Apr., May).
Coles, Ashmore — pond (June).
C. VENUS Kuetz. West & West, loc. cit., p. 137. pi. 15. f. 15-20 (1904).
Transeau: Coles, Ashmore — pond (Nov.). Johnson & Atwell
1890, p. 20: Cook, Evanston — ditch N. of town (Apr.). Eddy
1931B, p. 462: Pulaski, Wetaug^ — sink-hole pond (July).
COSMARIUM Corda, 1834
C. BiRETUM var. TRIGIBBERUM Nordst. West & West, Brit. Desmid. 4:
28. pi. 101. f. 10-15 (1912).
Britton: Cook, Golf — small pond about 2 miles W., "May 10,
1938, #52.
C. BOTRYTis Menegh. West & West, loc. cit., p. 1. pi. 96. f. 1, 2, 5-15
(1912).
Transeau: Clark, Casey^ — pond (Sept.). Coles, Charleston —
ponds (May, July). Johnson & Atwell 1890, p. 20: Cook— "Big
Woods" (Apr.). Eddy 1931B, p. 462: Pulaski, Wetaug— sink-
hole pond (July, Sept.).
C. BROOMEi Thw. West & West, loc. cit., p. 24. pi. 100. f. 12 (1912).
Johnson & Atwell 1890, p. 20: Cook— "Big Woods" (Apr.).
Transeau: Douglas, Arthur— pond (May).
C. CONSTRICTUM Delp. Wolle, Desmids U. S., p. 63. pi. 61. f. 1-4
(1892).
Kofoid 1908, p. 61: Mason, Havana — Illinois River (Mar.-
Sept.).
C. CRENATUM Ralfs. Wcst & West, Brit. Desmid. 4: 35. pi. 98. f. 9-12
(1912).
Transeau: Coles, Charleston^ — ditches (Apr., May). '
C. cucuMis (Corda) Ralfs. West & West, Brit. Desmid. 2: 152. pi.
59. f. 18-20 (1905).
Britton 1940, p. 71: Cook, Glenview^ — swamp and temporary
pond about 1| miles W., Apr. 7, 1938, #228.
C. CURTUM (Breb.) Ralfs. West & West, Brit. Desmid. 1: 97. pi. 10.
f. 21, 22 (1904); 5: 267 (1923).
Calocylindrus curtus Kirch.
Johnson & Atwell 1890, p. 20, as Calocylindrus curtus: Cook,
"Big Woods" (Apr.).
C. DENTATUM Wolle. Wolle, Desmids U. S., p. 83. pi. 16. f. 15 (1892).
Transeau: Coles, Ashmore — pond (June).
CLASSIFIED CATOLOG OF ILLINOIS ALGAE 137
C. DEPRESSUM (Naeg.) Lund. West & West, Brit. Desmid. 2: 176. pi.
62. f. 2-5 (1905).
Eddy 1931B, pp. 456, 462: Pulaski, Wetaug— sink-hole pond
(July).
C. FORMOSULUM Hofif. West & West, Brit. Desmid. 3: 240. pi. 88. f.
1-3 (1908).
Transeau: Coles, Ashmore — pond and ditches (May, June).
Douglas, Arthur — pond (May).
C. FORMOSULUM var. NATHORSTii (Boldt) W. & G. S. West. West &
West, loc. cit., p. 242. f. 4-5 (1908).
Transeau: Coles, Charleston — pond (Apr.).
C. GRANATUM Breb. West & West, Brit. Desmid. 2: 186. pi. 63. f. 1-3
(1905).
Transeau: Coles, Ashmore — pond (June, Nov.). Britton: Cook,
Sag Bridge— swamp, Sept. 8, 1939, #984.
C. HOLMIENSE Lund. West & West, Brit. Desmid. 3:1. pi. 65. f. 1-2
(1908).
Transeau: Coles, Charleston^ditch (May).
C. HOLMIENSE var. INTEGRUM Lund. West & West, loc. cit., p. 2. pi. 65.
f. 3-5 (1908).
Transeau: Coles, Charleston— ditches (Apr., May).
C. MENEGHiNii Breb. West & West, loc. cit., p. 90. pi. 72. f. 29-32
(1908).
Britton: McHenry, Johnsburg— Fox River, about | mile below
Pistakee Lake, July 25, 1939, #590.
C. MONiLiFORME (Turp.) Ralfs. West & West, loc. cit., p. 20. pi. 67.
f. 1-3 (1908).
Britton: Cook, Northbrook— small pond in Somme Poorest Pre-
serve, July 3, 1939, #349.
C. NiTiDULUM DeNot. West & West, Brit. Desmid. 2: 197. pi. 64.
f. 1-3 (1905).
Johnson & Atwell 1890, p. 20: Cook, Evanston— aquarium
(Mar.).
C. PACHYDERMUM var. AETHioPicuM W. & G. S. West. West & West,
loc. cit., p. 140. pi. 57. f. 8-9 (1905).
Britton: McHenry, Harvard— swamp about 2 miles N.E., July
8, 1939, #436.
C. PERICYMATIUM Nordst. West & West, Brit. Desmid. 3: 34. pi. 68.
f. 10 (1908).
Transeau: Coles, Charleston — ditches (May).
C. POLYGONUM (Naeg.) Arch. West & West, loc. cit., p. 76. pi. 71.
f. 32-34 (1908).
Johnson & Atwell 1890, p. 20: Cook— "Big Ditch" (Oct.).
C. PORRECTUM Nordst. DeToni, Sylloge Algarum 1(2): 987 (1889);
138 A CATALOG OF ILLINOIS ALGAE
Johnson, Bull. Torr. Bot. Club 22: 293. pi. 240. f. 30 (1895).
Britton: Cook, Sag Bridge— swamp, July 13, 1939, #493, 496.
C. PROTRACTUM (Naeg.) DeBary. West & West, Brit. Desmid. 3: 181.
pi. 82. f. 8; pi. 94, f. 4, 5 (1908).
Johnson & Atwell 1890, p. 20; Johnson 1894, p. 287: Cook,
Evanston; Winnetka (Apr.).
C. PUNCTULATUM Breb. West & West, loc. cit., p. 206. pi. 84. f. 13-14;
pi. 102, f. 22 (1908).
Transeau: Coles, Ashmore — pond (Nov.).
C. QUADRUM Lund. West & West, Brit. Desmid. 4: 20. pi. 100. f. 3-6
(1912).
Transeau: Coles, Ashmore^ — pond (June).
C. QUINARIUM Lund. West & West, Brit. Desmid 3: 216. pi. 85. f.
9, 10 (1908).
Eddy 1931B, p. 462: Pulaski, Wetaug — sink-hole pond (July).
C. RECTANGULARE Grun. West & West, loc. cit., p. 54. pi. 70. f. 1-2
(1908).
Britton: Cook, Sag Bridge — small shallow pond, July 13, 1939,
#510.
C. RENIFORME (Ralfs) Arch. West & West, loc. cit., p. 157. pi. 79.
f. 1-2; pi. 82. f. 15 (1908).
Transeau: Douglas, Arthur — pond (May).
C. SEXANGULARE Lund. West & West, loc. cit., p. 81. pi. 72. f. 3 (1908).
Transeau: Douglas, Arhtur — pond (May).
C. SEXANGULARE f. MINIMA Nordst. West & West, loc. cit., p. 82. f. 4-5
(1908).
Britton 1940, p. 71: Cook, Morton Grove — small pond about 1
mile N.W., June 23, 1938, #77.
C. SPECIOSUM Lund. West & West, loc. cit., p. 247. pi. 89. f. 1-3 (1908).
Transeau: Coles, Ashmore, Charleston^ — ditches and ponds
(Apr., May).
C. SUBCOSTATUM Nordst. West & West, loc. cit., p. 236. pi. 87. f. 3-5
(1908).
Transeau: Clark, Casey — pond (May). Coles, Ashmore — pond
(Nov.).
C. SUBCRENATUM Hantz. West & West, loc. cit., p. 228. pi. 86. f. 10-14
(1908).
Johnson & Atwell 1890, p. 20: Cook— "Big Woods" (Apr.).
C. SUBIMPRESSULUM Borge. West & West, Trans. Linn. Soc. Lond.
2nd Sen 5: 247. pi. 15. f. 18 (1896).
Transeau: Coles, Ashmore — pond (June, Nov.).
C. suPRASPECiosuM Wolle. Wolle, Desmids U. S., p. 95. pi. 61. f. 5, 6
(1892).
Transeau: Clark, Casey — pond (May).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 139
C. TRIPLICATUM Wollc. Wolle, loc. ctL, p. 79. pi. 22. f. 3-6 (1892).
Transeau: Coles, Ashmore, Charleston — ponds (June, Nov.).
C. TURPiNii Breb. West & West, Brit. Desmid. 3: 189. pi. 82, 83. f.
16-17, 1 (1908).
Transeau: Coles, Ashmore — small stream and pond (May,
Nov.).
COSMOCLADIUM Brebisson, 1856
C. SAXONICUM DeBary. West & West, Brit. Desmid. 5: 202. pi. 158.
f. 13-16 (1923).
Kofoid 1908, pp. 60, 61: Mason, Havana^ — Illinois River (Aug.,
Sept.).
DESMIDIUM Agardh, 1825
D. APTOGONUM Breb. West & West, loc. cit., p. 242. pi. 164. f. 1-3
(1923).
Britton: Lake, Waukegan^ — in Dead River at Dunes Park, May
11, 1939, #255.
D. GREViLLEi DeBary. Smith, Bull. Wis. Geol. & Nat. Hist. Surv.
57 (2): 145. pi. 88. f. 8 (1924).
Britton: McHenry: Greenwood — swamp in Game Preserve
about 1| miles N.W., July 6, 1939, #396, 397; Ringwood— small
pond about 1 mile N.W., July 6, 1939, #398.
D. SWARTZII Ag. West «& West, Brit. Desmid. 5: 246. pi. 163. f. 5-8
(1923).
Transeau 1916, p. 125: Clark, Casey — pond (May). Coles, Ash-
more, Charleston — small stream and ponds (May-July, Nov.).
Britton: Cook, Argonne Forest Preserve^ — Maple Lake, July 13,
1939, #493; Palos Park— small pond, July 14, 1939, #578; Sag
Bridge — ponds and swamps, July 13, Sept. 8, 1939, #505, 529,
996, 998, 1021; Schnells Corner— ponds at Elk Grove Forest
Preserve, Aug. 8, 1939, #780, 786, 790, 791. Lake, Volo— bog at
Tamarack Farm, June 3, 1939, #294.
EUASTRUM Ehrenberg, 1832; Ralfs, 1844
E. JOHNSONII West & West. Krieger in Rab., Kryptog.-fl. Deutsch.
13 (1): 542. pi. 73. f. 20-21 (1937).
Transeau: Clark, Casey — pond (May).
E. OBLONGUM (Grev.) Ralfs. West & West, Brit. Desmid. 2: 12. pi. 34,
35. f. 7-9, 2 (1905).
Britton: Lake, Volo — bog at Tamarack Farm, June 3, 1939,
#294.
E. PULCHELLUM Breb. West & West, loc. cit., p. 46. pi. 38. f. 14-15
(1905).
Transeau: Coles, Ashmore — pond (June).
140 A CATALOG OF ILLINOIS ALGAE
HYALOTHECA Ehrenberg, 1841
H. DissiLiENS (Smith) Breb. West & West, Brit. Desmid. 5: 229. pi.
161. f. 16-27 (1923).
Transeau 1916, p. 125: Coles, Ashmore, Charleston — small
stream from pond and ponds (May-July, Nov.). Britton: Cook,
Evanston — North Shore Channel at Simpson St., June 22, 1939,
#304; Palos Park— small pond, July 14, 1939, #578; Schnells
Corner— pond at Elk Grove Forest Preserve, June 23, 1938,
Aug. 8, 1939, #93, 790. Transeau: Jasper, Wheeler— pond
(Sept.). Britton: Lake, Volo^ — bog at Tamarack Farm, June 3,
1939, #293, 294; Wauconda— Bangs Lake, Aug. 24, 1939, #920.
H. MUCOSA (Mert.) Ehr. West & West, loc. cit., p. 235. pi. 162. f. 1-4
(1923).
Britton: Cook, Sag Bridge— swamp, July 13, 1939, #495.
MICRASTERIAS Agardh, 1827
M. AMERICANA (Ehr.) Ralfs. West & West, Brit. Desmid. 2: 117. pi.
53, 54. f. 4, 5, 1-3 (1905).
Transeau: Clark, Casey^ — stream (Apr.). Coles, Ashmore,
Charleston — ponds and small stream (May, June, Nov.). Brit-
ton: Cook, Sag Bridge — small pond, July 13, 1939, #505. Tran-
seau: Douglas, Arthur — pond (May). Eddy 1931B, pp. 451, 462:
Pulaski, Wetaug — sink-hole ponds (Apr.).
M. ROTATA (Grev.) Ralfs. West & West, loc. cit., p. 102. pi. 48. f. 1-6
(1905).
Britton : Lake, Volo — bog at Tamarack Farm, June 3, 1939, #293,
294.
M. TRUNCATA (Corda) Breb. West & West, loc. cit., p. 82. pi. 42, 45.
f. 1-8, 5, 6 (1905).
Transeau: Coles, Ashmore, Charleston- — ponds (June, Nov.).
Britton: Lake, Volo — bog at Tamarack Farm, June 3, 1939,
#293. McHenry, Harvard — swamps about 2 miles E., July 7,
1939, #420; Woodstock— small pond about 1 mile S.E., July 8,
1939, #434.
ONYCHONEMA Wallich, 1860
O. LAEVE var. LATUM W. & G. S. West. Smith, Bull. Wis. Geol. &
Nat. Hist. Surv. 57 (2): 136. pi. 86. f. 15 (1924).
Britton: Cook, Sag Bridge— small pond, Sept. 8, 1939, #996, 998.
PENIUM Brebisson, 1844
P. MARGARITACEUM (Ehr.) Breb. West & West, Brit. Desmid. 1 : 83.
d1. 8. f. 32-35 (1904).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 141
Transeau: Clark, Casey^ — pond (May). Johnson & Atwell 1890,
p. 20: Cook, Winnetka— (Apr.).
PLEUROTAENIUM Naegeli, 1849
P. CORONATUM (Breb.) Rab. West & West, loc. cit., p. 199. pi. 18. f. 4
(1904).
Transeau: Coles, Ashmore — pond (June).
P. EHRENBERGii (Breb.) DeBary. West & West, loc. cit., p. 205. pi. 30
f. 1 (1904).
Transeau: Clark, Casey — pond (May).
P. TRABECULA (Ehr.) Naeg. West & West, loc. cit., p. 209. pi. 30. f.
11-13 (1904).
Docidium trabecula Naeg.
Transeau: Coles, Ashmore — pond (June, Nov.). Johnson & At-
well 1890, p. 20, as Docidium trabecula: Cook — "Big Woods"
(Apr.).
SPONDYLOSIUM Brebisson, 1844
S. PLANUM (Wolle) W. & G. S. West. West & West, Brit. Desmid. 5:
222. pi. 160. f. 23-25 (1923).
Eddy 1931 B, p. 462: Pulaski, Wetaug— sink-hole pond (Apr.).
S. PYGMAEUM (Cooke) W. West. West & West, loc. cit., p. 220. pi. 160.
f. 18-19 (1923).
Daily 1938, p. 80: Cook, Evanston — Lake Michigan.
STAURASTRUM Meyen, 1829
S. ALTERNANS Breb. West & West, Brit. Desmid. 4: 126. f. 8-9 (1912).
Transeau: Clark, Casey— pond (May).
S. CRENATUM Bail. Wolle, Desmids U. S., p. 138. f. 5-6 (1892).
Transeau: Coles, Ashmore — pond (Nov.).
S. CUSPIDATUM Breb. West & West, Brit. Desmid. 5: 23. pi. 132. f.
13-15 (1923).
Jelliffe 1893, p. 310: Cook, Chicago— Lake Michigan. Eddy
1931 B, p. 462: Pulaski, Wetaug— sink-hole pond (Dec).
S. DILATATUM Ehr. West & West, Brit. Desmid. 4: 172. pi. 126. f.
10-15 (1912).
Transeau: Clark, Casey — pond (May). Coles, Ashmore^ — pond
(June, Nov.). Johnson & Atwell 1890, p. 20: Cook— "Big Ditch"
(Oct.).
S. GRACILE Ralfs. West & West, Brit. Desmid. 5: 96. pi. 144. f. 3-7
(1923).
Galtsoff 1924, pp. 399, 404: Carroll— Mississippi River (July).
Transeau: Coles, Charleston- — pond (July). Galtsoff, loc. cit.:
Henderson, Jo Daviess- — Mississippi River (Aug., July). Kofoid
1908, pp. 60, 61, 319: Mason, Havana— Illinois River (all
142 A CATALOG OF ILLINOIS ALGAE
months). Galtsoff, loc. cit.: Mercer — Mississippi River (Aug.).
Eddy 1931B, p. 462: Pulaski, Wetaug — sink-hole ponds (Apr.,
July, Sept.). Galtsoff, loc. cit.: Rock Island, Whiteside- — Missis-
sippi River (July, Aug.).
S. HEXACERUM (Ehr.) Wittr. West & West, loc. cit., p. 138. pi. 142. f.
11-14 (1923).
Transeau: Clark, Casey — pond (May). Coles, Ashmore- — pond
(Nov.).
S. MARGARITACEUM (Ehr.) Menegh. West & West, loc. cit., p. 131. pi.
150. f. 5-9 (1923).
Transeau: Coles, Ashmore — pond (Nov.).
S. OXYACANTHUM Arch. West & West, loc. cit., p. 169, pi. 143. f. 18, 19
(1923).
Transeau: Coles, Ashmore — pond (Nov.).
S. POLYMORPHUM Breb. Wcst & West, loc. cit., p. 125. pi. 142, 143. f.
24, 1-3 (1923).
Transeau: Clark, Casey — stream (Apr.).
S. PUNCTULATUM Breb. West & West, Brit. Desmid. 4: 179. pi. 127.
f. 8-11, 13, 14 (1912).
Transeau: Clark, Casey — stream (Apr.). Coles, Ashmore — pond
(Nov.); Charleston— ditch (May). Johnson & Atwell 1890, p. 20:
Cook— "Big Woods" (Apr.).
Phylum: PYRROPHYTA
Class: DINOPHYCEAE
Subclass: DINOFLAGELLATAE
Order: PERI DINI ALES.
Family: GLENODINIACEAE
GLENODINIUM Stein, 1883
G. ciNCTUM Ehr. Schilling in Pascher, Suesswass.-fl. Deutsch. 3: 23.
f. 23 (1913).
Kofoid 1908, pp. 68, 82, 292, 322: Mason, Havana— Illinois
River (Dec-Sept.). Eddy 1930, p. 282: "plankton . . . from
ponds in . . . Illinois."
G. GYMNODiNiUM Penard. Schiller in Rab., Kryptog.-fl. Deutsch.
10 (3): 118. f. 116a-l (1937).
Eddy 1930, p. 284: Whiteside— Rock River.
G. PALUSTRE (Lemm.) Schill. Schiller, loc. cit., p. 99. f. 87a-c (1937).
Gonyaulax palustre Lemm.
Eddy 1930, p. 288, as Gonyaulax palustre: Co. ?- — "plankton from
shallow lakes of central Illinois."
G. QUADRIDENS (Stein) Schill. Schiller, loc. cit., p. 117. f. 115a-m
(1937).
Peridinium cunningtonii (Lemm.) Lemm.; P. quadridens Stein.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 143
Eddy 1930, pp. 292, 297, as Peridinium cunningtonii and P.
quadridens: Illinois-Mississippi Canal; "several lakes in central
Illinois."
Family: PERIDINIACEAE
PERIDINIUM Ehrenberg, 1832
P. BiPES Stein. Schiller, loc. ciL, p. 159. f. 157a-i (1937).
Peridinium tabulatum (Ehr.) Clap. & Lachm.
Eddy 1934, pp. 396, 397, as P. tabulatum: Champaign, Seymour
—temporary pond (Feb.-May, Oct.); Urbana — ox-bow pond
(Feb.-Apr.). Jelliffe 1893, p. 311; Eddy 1927B, pp. 209, 225, as
P. tabulatum: Cook, Chicago — Lake Michigan (Aug.). Hempel
1896, p. 310; 1898, p. 329, as P. tabulatum: Fulton — Thompson's
Lake (July, Aug.). Hempel, loc. cit. (1896, 1898); Kofoid 1908,
pp. 68, 84, 323, as P. tabulatum: Mason, Havana — Illinois River
(all months); Matanzas Lake (July, Aug.). Kofoid 1899, p. 421;
1900, p. 543, as P. tabulatum: Co. ? — "almost always repre-
sented." Eddy 1930, p. 298, as P. tabulatum: Co. ?— "ponds and
streams."
P. ciNCTUM (Muell.) Ehr. Schiller, loc. cit., p. 152. f. 152a-k (1937).
Eddy 1931 B, pp. 453, 455, 464: Pulaski, Wetaug— sink-hole
ponds (Apr., July, Sept., Dec). Eddy 1930, p. 292 : Whiteside-
Rock River. Co. ?— cypress swamps along the Ohio River.
P. iNCONSPicuuM Lemm. Schiller, loc. cit., p. 173. f. 175a-w, z (1937).
Eddy 1930, p. 295: Henry (?)— Illinois-Mississippi Canal.
P. PUSILLUM (Penard) Lemm. Schiller, loc. cit., p. 175. f. 177a-f
(1937).
Eddy 1930, p. 297: Co. ?— "in limestone sinks in southern Illi-
nois."
P. UMBONATUM Stein. Schiller, loc. cit., p. 171. f. 174a-l (1937).
Eddy 1930, p. 299: Henry, Colona — in Hennepin (Illinois-
Mississippi) Canal. Whiteside, Sterling— in Rock River.
Family: HETERODINIACEAE
CERATIUM Schrank, 1793
C. CORNUTUM (Ehr.) Clap. & Lachm. Schiller, loc. cit., p. 363. f. 399
(1937).
Kofoid 1908, p. 72: Mason, Havana — Illinois River (June).
C. HIRUNDINELLA (O. F. M.) Schr. Schillcr, loc. cit., p. 359. f. 393-
397 (1937).
Ceratium kumaonense Carter.
Hempel 1898, p. 330 (Fulton, Mason). Kofoid 1899, p. 421 ; 1900,
144 A CATALOG OF ILLINOIS ALGAE
p. 543, as C. kumaonense (Champaign); 1908, p. 72 (Mason).
Transeau 1913B, p. 73 ("common in ponds of eastern Illinois").
Galtsoff 1924, p. 399 (Carroll, Hancock, Jo Daviess, Rock Island,
Whiteside). Eddy 1927B, pp. 209, 225 (Cook); 1931A, pp. 473,
479, 481, 484 (Cass, Macon, Piatt, Sangamon); 1931B, pp. 455,
464 (Pulaski) ; 1934, pp. 385, 386, 388-392, 394, 399, 400, 402, 403
(Adams, Alexander, Calhoun, Hancock, Henry, Jersey, Lake,
Macon, Madison, Mason, McHenry, Ogle, Piatt, Pike, St. Clair,
Union, Whiteside). Daily 1938, p. 80 (Cook). Britton (Cook,
Lake, McHenry).
Adams — Mississippi River (June). Alexander — Horseshoe
Lake (June-Aug.). Calhoun, Carroll — Mississippi River (June-
Sept.). Cass, Chandlerville — Sangamon River (June, July).
Champaign, Urbana — Salt Fork. Cook, Argonne Forest Pre-
serve—Maple Lake, July 13, Sept. 8, 1939, #487, 986, 991,
Tuma Lake, July 14, 1939, #555; Chicago, Evanston— Lake
Michigan (May, Aug., Sept.); Glenview— small pond in Ridge-
wood Cemetery, July 12, 1939, #460; Palos Park— Calumet Sag
Channel at Kean Ave., July 14, 1939, #559; pond at Palos Golf
Club, July 13, Sept. 8, 1939, #504, 505, 1000; Sag Bridge— small
ponds on Archer Ave. and on McCarthy Road W. of Bell Road,
and quarry pond on Route 4A, Sept. 8, 1939, #998, 1007, 1011,
1014, 1015. Fulton— Thompson's Lake (Aug., Sept.). Hancock-
Mississippi River (June-Sept.). Henry, Colona — slough (June-
Aug.). Jersey, Jo Daviess — Mississippi River (June-Sept.).
Lake, Antioch — Grass, Marie, Channel, Catherine and Bluff
Lakes and connecting channels, Sept. 14, 1939, #1028, 1032,
1033, 1035, 1040, 1048; Fox Lake— in Nippersink Lake and
Creek, July 25, 1939, #594, 601, 602, Fox Lake, July 25, Aug. 25,
1939, #604, 605, 950-953; Halfday— pond 2 miles N.E., Aug. 8,
1939, #775; Klondike— Grass Lake, Petite Lake and connecting
channels, Aug. 25, 1939, #942, 943, 945, 955, 958, 969, 971; Lake
Villa — Sand Lake ("summer"); Lake Zurich — in Lake Zurich,
Aug. 24, 1939, #914, 915 ; Long Lake— in Long Lake ("summer") ;
Volo— Fish Lake, Aug. 24, 1939, #935; Wauconda— Bangs and
Slocum Lakes, Aug. 24, 1939, #920, 926. Macon, Decatur— Lake
Decatur (Apr.-Nov.), park pond (July-Oct.); Harristown —
Sangamon River (July). Madison — Mississippi River (June).
Mason, Havana— Illinois River (Apr.-Oct.), Thompsons Lake
(Aug., Sept.). McHenry, Algonquin — Fox River; Greenwood —
Nippersink Creek and tributaries, July 6, 7, 1939, #364, 432;
Wonder Lake, July 6, 1939, #368; Johnsburg— Fox River below
Pistakee Lake, July 25, Aug. 2, 1939, Pistakee Lake, Aug. 2,
1939, #591, 592, 595; McHenry— small pond 1 mile N.W. of
CLASSIFIED CATALOG OF ILLINOIS ALGAE 145
McCulIom Lake, July 6, 1939, #390; Richmond— Twin Lakes
(Lake Elizabeth), Aug. 2, 1939, #729; Woodstock— small pond
about 1 mile E., July 7, 1939, #424. Ogle, Byron— slough (June-
Aug.). Piatt, Monticello — Sangamon River (Mar., July, Sept.).
Pike— Mississippi River (June). Pulaski, Wetaug— sink-hole
ponds (Apr., July, Sept., Dec). Rock Island— Mississippi River
(July, Sept.). Sangamon, Illiopolis, Riverton— Sangamon River
(July). St. Clair— Mississippi River (June). Union, Laru^Wolf
Lake (June-Aug.). Whiteside— Mississippi River (July, Sept.);
Erie^Hatwood Slough (June-Aug.).
Phylum: EUGLENOPHYTA
Class: EUGLENOPHYCEAE
Order: EUGLENALES
Family: EUGLENACEAE
EUGLENA Ehrenberg, 1838
E. Acus Ehr. Walton, Ohio Biol. Surv. 19: 371. pi. 14. f. 8 (1915).
Forbes 1883B, p. 77 (Tazewell); 1888B, p. 534; Hempel 1898,
p. 324 (Fulton, Mason). Kofoid 1903, p. 225; 1908, pp. 80, 292,
321 (Mason). Galtsoff 1924, pp. 399, 402, 405 (Carroll, Hender-
son, Jo Daviess, Mercer, Rock Island, Whiteside). Agersborg
1930, pp. 108, 113 (Macon). Eddy 1931A, p. 479 (Cass); 1931B,
p. 463 (Pulaski); 1934, pp. 385, 386, 390, 399, 403 (Adams,
Alexander, Calhoun, Hancock, Jersey, Macon, Madison, Mason,
Ogle, Pike, St. Clair, Union, Whiteside). Britton (Cook).
Adams— Mississippi River (June). Alexander— Horseshoe
Lake (June-Aug.). Calhoun, Carroll— Mississippi River (June,
Sept.). Cass, Chandlerville— Sangamon River (June). Cook, Sag
Bridge — small pond E. of Archer Ave. on McCarthy Road, Sept.
8, 1939, #1014. Fulton — Illinois River and adjacent waters (July-
Sept.). Hancock— Mississippi River (June); Lake Keokuk
(July). Henderson, Jersey, Jo Daviess — Mississippi River
(June-Sept.). Macon, Decatur— Lake Decatur (June-Nov.);
warm waste-water ditch (Dec.-Feb.). Madison— Mississippi
River (June). Mason, Havana — Illinois River and adjacent wa-
ters (July-Sept.). Mercer, New Boston — Mississippi River
(July). Ogle, Byron— slough (June-Aug.). Pike— Mississippi
River (June). Pulaski, Wetaug— sink-hole pond (Sept.). Rock
Island, St. Clair — Mississippi River (June-Sept.). Tazewell —
Mackinaw River (Aug.). Union, Larue— Wolf Lake (June-Aug.).
Whiteside, Erie— Hatwood Slough (June-Aug.); Rock River;
Mississippi River (Sept.).
146 A CATALOG OF ILLINOIS ALGAE
E. ACUTissiMA Lemm. Walton, loc. cit., p. 372. f. 10 (1915).
Eddy 1931A, pp. 481, 484; 1934, p. 388: Cass, Chandlerville—
Sangamon River (July). Macon — Lake Decatur (July-Nov.).
Menard, Petersburg — Sangamon River (Sept.). Sangamon, Illi-
opolis, Riverton — Sangamon River (Sept.).
E. DESES Ehr. Walton, loc. cit., p. 369. f. 1 (1915).
Transeau 1913B, p. 72: Coles, Charleston — ponds and -small
streams (Mar.). Kofoid 1903, p. 225; 1908, p. 81: Fulton, Mason,
Havana^ — Illinois River and backwaters ("summer"). Purdy
1930, pp. 68, 132: Peoria, Peoria— Illinois River (July, Aug.).
Will, Lockport — DesPlaines River (Oct.).
E. ELONGATA Schew. Walton, loc. cit., p. 363. pi. 12. f. 5 (1915).
Kofoid 1908, p. 81: Mason, Havana— Illinois River (July-Oct.).
E. GENicuLATA Duj. Walton, loc. cit., p. 362. f. 2 (1915).
Baker 1922, pp. 80, 82-87: Champaign, Urbana— Boneyard
Creek, Salt Fork and Spoon River.
E. GRACILIS Klebs. Walton, loc. cit., p. 368. pi. 13. f. 9 (1915).
Kofoid 1903, p. 225: Fulton, Mason, Havana— Illinois River and
backwaters.
E. OBLONGA Schmitz. Walton, loc. cit., p. 363. pi. 12. f. 4 (1915).
Transeau 1913B, p. 72: Coles, Ashmore — ice pond (Oct.).
E. oxYURis Schmarda. Walton, loc. cit., p. 369. pi. 14. f. 4 (1915).
Hempel 1898, p. 324; Kofoid 1908, pp. 81, 292, 321 (Mason).
Purdy 1930, pp. 71, 117, 132, 133, 135, 147, 159, 169 (Calhoun,
Fulton, Mason, Peoria, Will). Eddy 1931 A, pp. 479, 481, 484
(Cass, Macon, Menard, Sangamon); 1931 B, p. 463 (Pulaski);
1934, pp. 385-391, 393, 399, 402, 403 (Adams, Alexander, Cal-
houn, Champaign, Hancock, Henry, Jersey, Macon, Madison,
Mason, Ogle, Piatt, Pike, St. Clair, Union, Whiteside).
Adams— Mississippi River (June). Alexander— Horseshoe
Lake (June-Aug.). Calhoun — Mississippi River (June); Kamps-
ville — Illinois River (June-Aug.). Cass, Chandlerville — Sanga-
mon River (July). Champaign, Mahomet — Sangamon River
(July, Sept., Nov.). Fulton— Spoon River (June-Aug.). Hancock
— Mississippi River (June). Henry, Colona — slough (June-
Aug.). Jersey— Mississippi River (June). Macon, Decatur,
Harristown — Lake Decatur, Sangamon River (June-Nov.).
Madison — Mississippi River (June). Mason, Havana — Illinois
River (Mar.-Nov.). Menard, Petersburg — Sangamon River
(June, Sept.). Ogle, Grand Detour — slough (June-Aug.). Peoria,
Chillicothe, Peoria— Illinois River (June-Nov.). Piatt, Monti-
cello — Sangamon River (May). Pike — Mississippi River (June).
Pulaski, Wetaug— sink-hole ponds (Apr., July, Sept.). Sanga-
mon, Illiopolis, Riverton — Sangamon River (June-Sept.). St.
CLASSIFIED CATALOG OF ILLINOIS ALGAE 147
Clair — Mississippi River (June). Union, Larue — Wolf Lake
(June-Aug.)- Whiteside, Erie — Rock River and sloughs (June-
Aug.)- Will, Lockport— DesPlaines River (May).
E. SANGUINEA Ehr. Walton, loc. cit., p. 364. pi. 12. f. 10 (1915).
Transeau 1913B, p. 73: Coles, Ashmore, Charleston — ponds and
pools (June, July, Oct.). Kofoid 1903, pp. 225, 513; 1908, p. 81:
Fulton, Mason, Havana— I l\inois River, backwaters and seepage
pools ("summer"). Eddy 19^1B, pp. 455, 456: Pulaski, Wetaug—
sink-hole ponds (July, Sept.).
E. SPIROGYRA Ehr. Walton, loc. cit., p. 372. pi. 15. f. 1 (1915).
Hempel 1898, p. 324 (Fulton). Kofoid 1903, p. 225; 1908, p. 81
(Fulton, Mason). Transeau 1913B, p. 73 (Coles). Galtsoff 1924,
pp. 399, 401, 402, 405 (Carroll, Hancock, Henderson, Jo Daviess,
Mercer, Rock Island, Whiteside). Purdy 1930, p. 132 (Peoria).
Eddy 1931B, p. 456 (Pulaski); 1934, p. 396 (Champaign). Brit-
ton (Cook).
Carroll — Mississippi River (July). Champaign, Urbana — ox-
bow pond (Feb.-Aug.). Coles, Charleston— ponds and small
streams (Oct.-Mar.). Cook, Park Ridge— DesPlaines River at
Touhy Ave., July 12, 1939, #452. Fulton— Illinois River and
backwaters, Phelp's Lake (July). Hancock — Lake Keokuk
(July). Henderson, Jo Daviess^ — Mississippi River (July). Ma-
son, Havana — Illinois River (Oct.). Mercer, New Boston —
Edwards and Mississippi Rivers (July). Peoria, Peoria^Illinois
River (July). Pulaski, Wetaug — sink-hole pond (July). Rock
Island, Whiteside — Mississippi River (July).
E. SPIROIDES Lemm. Walton, loc. cit., p. 369. pi. 14. f. 3 (19151.
Eddy 1934, p. 397: Champaign, Seymour — temporary pond
(Apr.-July).
E. TORTA Stokes. Walton, loc. cit., p. 368. pi. 13. f. 10 (1915).
Hempel 1898, p. 324: Fulton— Phelp's Lake (July).
E. TRiPTERis (Duj.) Klebs. Walton, loc. cit., p. 371. pi. 14. f. 7 (1915).
Eddy 1931B, p. 463: Pulaski, Wetaug— sink-hole pond (July).
E. viRiDis Ehr. Walton, loc. cit., p. 361. pi. 12. f. 1 (1915).
Forbes 1883, p. 77 (Tazewell); 1888B, p. 534; Garman 1890, p.
184 (Adams). Johnson & Atwell 1890, p. 19 (Cook). Jellifife 1893,
p. 311 (Cook). Hempel 1898, p. 324 (Fulton, Mason). Kofoid
1903, pp. 225, 513; 1908, pp. 67, 81, 292, 322 (Fulton, Mason).
Transeau 1913B, p. 73 (Coles). Adcock 1922, p. 190 (Knox).
Agersborg 1930, pp. 108, 109, 110, 113 (Macon). Purdy 1930,
pp. 63, 85, 88, 89, 101, 105, 107, 109, 112, 117, 120, 121, 124, 126,
132-135, 143, 144, 146, 147, 154, 156, 159, 169, 170 (Calhoun,
Fulton, Grundy, LaSalle, Marshall, Mason, Peoria, Will). Eddy
1931 A, pp. 474, 479, 481, 484 (Cass, Macon, Menard, Piatt,
148 A CATALOG OF ILLINOIS ALGAE
Sangamon); 1931B, pp. 456, 463 (Pulaski); 1934, pp. 385, 388-
397, 399, 402, 403 (Adams, Alexander, Champaign, Calhoun,
Hancock, Henry, Jersey, Macon, Madison, Ogle, Piatt, Pike,
St. Clair, Union, Whiteside).
Adams — Mississippi River (June); Quincy^ — Quincy Bay
(Aug.). Alexander — Horseshoe Lake (June-Aug.). Calhoun^ —
Mississippi River (June); Kampsville — Illinois River (June-
Nov.). Cass, Chandlerville — Sangamon River (June-Sept.).
Champaign, Mahomet — Sangamon River (July-Aug.); Seymour
— temporary pond (Apr.-July); Urbana — ponds (Apr. -Aug.).
Coles, Charleston — ponds, pools and streams (all months). Cook,
Chicago — Lake Michigan; Evanston^ — small stream and ditches
("spring and autumn"). Fulton — Illinois River and adjacent
lakes (May-Dec); Spoon River (June-Nov.). Grundy, Morris —
Illinois River (June-Aug.). Hancock — Mississippi River (June).
Henry, Colona^ — slough (June-Aug.). Jersey — Mississippi River
(June). Knox, Galesburg — Lake Knox. LaSalle, LaSalle — Illinois
River (June-Nov.). Macon, Decatur — Park pond (Feb.-Oct.,
Dec); Lake Decatur (all months); warm waste-water ditch
(Dec, Feb.). Harristown — Sangamon River (June-Sept.). Madi-
son—Mississippi River (June). Marshall, Henry — Illinois River
(Mar.-Aug.). Mason, Havana — Illinois River, lakes and seepage
pools (Mar.-Dec). Menard, Petersburg^ — Sangamon River
(June-Sept.). Ogle, Byron- — slough (June-Aug.); Grand Detour
— slough (June-Aug.). Peoria, Chillicothe, Peoria— Illinois River
(all months). Piatt, Monticello — Sangamon River (Mar.-Nov.).
Pike — Mississippi River (June). Pulaski, Wetaug — sink-hole
ponds (July, Sept., Dec). St. Clair^ — Mississippi River (June).
Tazewell^ — Mackinaw River (Aug.). Union, Larue — Wolf Lake
(June-Aug.). Whiteside, Erie — Rock River and Hatwood
sloughs (June-Aug.). Will, Joliet — DesPlaines River (Mar.-
Oct.) ; Lockport — Chicago Drainage Canal and DesPlaines River
("spring and summer").
LEPOCINCLIS Perty, 1849
L. OVUM (Ehr.) Lemm. Walton, loc. cit., p. 375. pi. 15. f. 6 (1915).
Kofoid 1908, pp. 82, 292, 322: Mason, Havana — Illinois River
(Jan., Apr.-Nov.).
PHACUS Dujardin, 1841
P. ACUMINATA Stokes. Walton, loc. cit., p. 381. pi. 17. f. 4 (1915).
Eddy 1931 A, p. 484: Macon, Harristown — Sangamon River
(Sept.). Menard, Petersburg — Sangamon River (Sept.). Eddy
1934, p. 393: Piatt, Monticello— Sangamon River (May, Aug.-
CLASSIFIED CATALOG OF ILLINOIS ALGAE 149
Oct.). Eddy 193 IB, p. 463: Pulaski, Wetaug— sink-hole pond
(July, Sept.).
P. LONGICAUDA (Ehf.) Duj. Walton, loc. cit., f. 2 (1915).
Hempel 1898, p. 326; Kofoid 1903, p. 516; 1908, pp. 85, 292, 323
(Mason); Transeau 1913B, p. 73 (Coles). Galtsoff 1924, pp. 399,
404 (Carroll, Hancock, Henderson, Jo Daviess, Mercer, Rock
Island, Whiteside). Eddy 1931A, pp. 479, 481, 484 (Cass, Macon,
Menard, Sangamon); 1931B, p. 463 (Pulaski); 1934, pp. 385-391,
394-396, 399, 402, 403 (Adams, Alexander, Calhoun, Cham-
paign, Hancock, Henry, Jersey, Macon, Madison, Mason, Mc-
Henry, Ogle, Pike, St. Clair, Union, Whiteside). Britton (Cook,
McHenry).
Adams — Mississippi River (June). Alexander — Horseshoe
Lake (June-Aug.). Calhoun — Mississippi River (June). Carroll —
Mississippi River (July, Sept.). Cass, Chandlerville — Sangamon
River (July). Champaign, Mahomet — Sangamon River (Sept.);
Urbana — park pond (July-Oct.), ox-bow pond (Apr., May).
Cook, Argonne Forest Preserve — swamp at 95th St. and 104th
Ave., and small pond S. of Archer Ave. and W. of Wolf Rd.,
July 13, 1939, #492, 522; Northbrook— small pond at Somme
Forest Preserve, May 8, 1939, #240; Palos Park— small pond,
Harlem Ave. at 143rd St., July 14, 1939, #559; Park Ridge—
DesPlaines River at Touhy Ave., July 12, 1939, #452; Sag
Bridge — quarry pond N. of, and pond on McCarthy Road E. of
Archer Ave., Sept. 8, 1939, #1011, 1014; Wheeling— DesPlaines
River at Dam #1 (Hintz Road) and Dundee Road, Aug. 8, 1939,
#766, 777. Hancock — Lake Keokuk (July), Mississippi River
(June). Henderson — Mississippi River (Aug.). Henry, Colona —
slough (June-Aug.). Jersey, Jo Daviess — Mississippi River
(June-Sept.). Macon — Lake Decatur (Mar.-Nov.); Decatur —
park pond (Feb.-Oct.); Harristown — Sangamon River (Sept.)
Madison — Mississippi River (June). Mason, Havana— Illinois
River (Jan., Mar.-Nov.); Topeka — Quiver Creek (Oct.). Mc-
Henry, Fox River; Greenwood — Wonder Lake, July 6, 1939,
#368, Nippersink Creek about 4 miles N.W., July 7, 1939, #432;
Marengo — Kishwaukee River about 3 miles W., July 8, 1939,
#451 ; Ridgefield— pond 1 mile N.W., July 7, 1939, #418. Menard,
Petersburg — Sangamon River (June, July, Sept.). Mercer, Mis-
sissippi River (Aug.). Ogle, Grand Detour — slough (June-Aug.).
Pike — Mississippi River (June). Pulaski, Wetaug — sink-hole
ponds (Apr,, July, Sept., Dec). Rock Island — Mississippi River
(July-Sept.). Sangamon, Illiopolis, Riverton, Springfield —
Sangamon River (June, Sept.). St. Clair — Mississippi River
(June). Union, Larue — Wolf Lake (June-Aug.). Whiteside —
150 A CATALOG OF ILLINOIS ALGAE
Mississippi River (July, Sept.); Erie — Rock River and Rock
River and Hatwood Sloughs (June-Aug.)-
P. LONGiCAUDA var. TORTA Lemm. Walton, loc. cit. (1915).
Britton: Cook, Park Ridge — DesPlaines River at Touhy Ave.,
July 12, 1939, #452. Lake, Fox Lake— in Lake Marie, Sept. 14,
1939, #1030.
P. PLEURONECTES (O. F. M.) Duj. Walton, loc. cit., p. 380. pi. 16. f. 9
(1915).
Kofoid 1908, pp. 85, 292, 323 (Mason). Transeau 1913B, p. 73
(Coles). Eddy 1931A, pp. 481, 484 (Macon, Sangamon); 1934,
pp. 392, 393, 396, 397 (Champaign, Piatt). Britton (Cook, Lake,
McHenry).
Champaign, Seymour — temporary pond (Feb.-July) ; Urbana
— ox-bow pond (July, Aug.). Coles, Charleston — ponds (Apr.).
Cook, Argonne Forest Preserve — swamps and ponds at 95th St.
and 96th Ave., 95th and 100th Aves., 95th St. and 104th Ave., W.
of Wolf Road on Archer Ave., and at Palos Golf Club, July 13,
Sept. 8, 1939, #477, 484, 492, 493, 515, 529, 534, 988, 996; Glen
view — swamp and pond about 1| miles W., Apr. 7, 1939, #228;
Goeselville — small ponds on Harlem Ave. at 143rd St., July 14,
1939, #578, 581, 587; Morton Grove— small ponds. May 10,
Oct. 3, 1938, #43, 217; Northbrook — ponds and swamps at
Somme Forest Preserve, June 27, 1938, May 8, July 3, 1939,
#113, 250, 252, 350; Or land Park- — small pond and extensive
swamp on 131st St., W. of Wolf Road, Sept. 8, 1939, #1018; Park
Ridge— DesPlaines River at Touhy Ave., July 12, 1939, #452;
Sag Bridge — quarry pond N. of, and small pond E. of Archer
Ave. on McCarthy Road, Sept. 8, 1939, #1011, 1014; Schnells
Corner — small pond at Elk Grove Forest Preserve, June 22,
1939, #324; Skokie — swamp at Dempster Golf Club, Oct. 3,
1938, #213, small pond at Dempster St. and Milwaukee Ave.,
Apr. 2, 1938, #1 ; Wheeling— DesPlaines River at Dam #1 (Hintz
Road) and at Dundee Road, Aug. 8, 1939, #766, 777. Lake,
Everett — small pond S. of. May 15, 1938, #71 ;Fox Lake — Nipper-
sink Creek, July 25, 1939, #601 ; Libertyville — small pond 2 miles
N.E., July 14, 1938, #121; Mundelein— Hawthorne Drainage
Ditch at Route 59A, July 29, 1938, #182; Prairie View— swamp,
July 29, 1938, #184; Volo— bog at Tamarack Farm, June 3, 1939,
#294. Macon — Lake Decatur (July). Mason, Havana — Illinois
River (June-Sept.). McHenry, Greenwood — swamp about 2
miles N.E., July 6, 1939, #396, Nippersink Creek, July 7, 1939,
#432; Harvard— Kishwaukee River, July 8, 1939, #438; Mc-
Henry—swamp E. of McCullom Lake, July 6, 1939, #374; Wood-
stock—swamp 2 miles S.E., July 7, 1939, #401, 403. Piatt,
CLASSIFIED CATALOG OF ILLINOIS ALGAE 151
Monticello — Sangamon River (May-Oct.). Sangamon, Illiopolis,
Riverton — Sangamon River (Sept.)-
P. PYRUM (Ehr.) Stein. Walton, loc. cit., p. 382. pi. 17. f. 9 (1915).
Hempel 1898, p. 326; Kofoid 1908, p. 85: Mason, Havana-
Illinois River (Aug., Oct.).
P. TRIQUETER (Ehr.) Duj. Walton, loc. cit., p. 380. pi. 16. f. 9 (1915).
Euglena trigueter Ehr.
Britton: Cook, Sag Bridge-small pond, Sept. 8, 1939, #996.
Hempel 1898, p. 326; Kofoid 1908, p. 85: Mason, Havana-
Illinois River (July-Sept.). Bailey 1845, p. 34, as Euglena
trigueter (?): St. Clair — Mississippi River.
TRACHELOMONAS Ehrenberg, 1833
T. ACUMINATA (Schmarda) Stein. Walton, loc. cit., p. 394. pi. 20. f. 4
(1915).
Hempel 1898, p. 325: Fulton— Phelp's Lake (July, Aug.). Hem-
pel, loc. cit.; Kofoid 1908, pp. 90, 292, 324: Mason, Havana—
Matanzas Lake and Illinois River (Apr.-Nov., Feb.).
T. ARMATA (Ehr.) Stein. Walton, loc. cit., p. 395. f. 10 (1915).
Britton: Cook, Sag Bridge— small pond, Sept. 8, 1939, #996, 997
Hempel 1898, p. 325; Kofoid 1908, p. 91: Mason, Havana-
Illinois River ("summer"). Quiver Creek (Oct.). Eddy 1931B,
p. 463: Pulaski, Wetaug — sink-hole pond (Sept.).
T. CAUDATA (Ehr.) Stein. Walton, loc. cit., p. 399. pi. 21. f. 10 (1915).
Hempel 1898, p. 325: Fulton— Phelp's Lake and Illinois River
(Aug., Sept.). Kofoid 1908, p. 91: Mason, Havana — Illinois
River ("summer").
T. ENSIFERA Daday. Walton, loc. cit., p. 395. pi. 20. f. 8 (1915).
Eddy 1931 A, pp. 474, 479, 481, 484: Cass, Chandlerville—
Sangamon River (June, July). Macon — Lake Decatur (July).
Menard, Petersburg — Sangamon River (July, Sept.). Piatt,
Monticello — Sangamon River (June). Eddy 1931 B, pp. 456, 463:
Pulaski, Wetaug^ — sink-hole pond (July, Sept.). Eddy, loc. cit.
(1931A): Sangamon, Illiopolis, Riverton, Springfield — Sanga-
mon River (July, Sept.).
T. HispiDA (Perty) Stein. Walton, loc. cit., p. 397. pi. 21. f. 3 (1915).
Eddy 1934, pp. 396, 397 : Champaign, Seymour — temporary pond
(Feb.-July, Oct.); Urbana — ox-bow pond (Apr.-May, Aug.).
Eddy 1927B, pp. 209, 224: Cook, Chicago— Lake Michigan
(Sept.). Eddy 1931A, pp. 479, 481, 484: Macon— Lake Decatur
(July, Sept.); Harristown — Sangamon River (Sept.). Hempel
1898, p. 326; Kofoid 1903, p. 516; 1908, pp. 90, 292, 324: Mason,
Havana — Illinois River and lakes (all months) ; Topeka — Quiver
Creek (Sept.). Eddy, loc. cit. (1931A): Menard, Petersburg —
152 A CATALOG OF ILLINOIS ALGAE
Sangamon River (Sept.). Eddy 1931 B, pp. 456, 463: Pulaski,
Wetaug — sink-hole pond (July, Sept., Dec). Eddy, loc. cit.
(1931A): Sangamon, Illiopolis, Riverton, Springfield — Sanga-
mon River (June, July, Sept.).
T. MAGDALENIANA Defl. Deflandre, Rev. Gen. de Bot. 39: 44. pi. 11.
f. 633, 634 (1927).
Eddy 1931B, p. 455: Pulaski, Wetaug — sink-hole pond (July,
Sept.).
T. SCHAUINSLANDII Lemm. Walton, Ohio Biol. Surv. 19: 395. pi. 20.
f. 7 (1915).
Galtsoff 1924, pp. 399, 402, 405: Carroll, Hancock, Henderson,
Jo Daviess, Mercer, Rock Island and Whiteside — in Mississippi
River (July-Sept.).
T. siMiLis Stokes. Walton, loc. cit., p. 392. pi. 19. f. 4 (1915).
Eddy 1931 B, p. 463: Pulaski, Wetaug — sink-hole pond (July,
Sept.).
T. TAMBOWIKA Swir. Deflandre, Rev. Gen. de Bot. 39: 45. pi. 13. f.
734, 735 (1927).
Eddy 1931 B, p. 463: Pulaski, Wetaug — sink-hole pond (Sept.).
T. URCEOLATA Stokes. Walton, Ohio Biol. Surv. 19: 394. pi. 20. f. 5
(1915).
Hempel 1898, p. 326: Fulton— (Sept.). Kofoid 1908, p. 91: Ma-
son, Havana — Illinois River ("summer").
T. VOLVOCINA Ehr. Walton, loc. cit., p. 389. pi. 18. f. 2 (1915).
Jelliffe 1893, p. 311 (Cook). Kofoid 1908, pp. 90, 292, 324 (Ma-
son). Eddy 1931 A, pp. 474, 479, 481, 484 (Cass, Macon, Menard,
Sangamon); 1931B, pp. 453, 455, 456, 463 (Pulaski); 1934, pp.
385, 386, 389-391, 393-397, 399, 402, 403 (Adams, Alexander,
Calhoun, Champaign, Hancock, Jackson, Jersey, Macon, Madi-
son, Mason, Massac, McHenry, Monroe, Ogle, Piatt, Pike,
Pulaski, Randolph, St. Clair, Union, Wabash, Whiteside). Brit-
ton (Cook, Lake, McHenry).
Adams, Mississippi River (June). Alexander — Mississippi and
Ohio Rivers (June). Calhoun— Mississippi River (June). Cass,
Chandlerville — Sangamon River (June-Sept.). Champaign, Sey-
mour— temporary pond (Feb.-July, Oct.); Urbana — ox-bow and
park pond (all months). Cook, Argonne Forest Preserve — ponds
and swamps, July 13, Sept. 8, 1939, #540, 973, 978, 982, 988, 996;
Chicago — Lake Michigan; Northbrook — pond at Somme Forest
Preserve, May 15, 1938, #68; Sag Bridge — quarry pond, Sept. 8,
1939, #1011. Hancock, Jackson, Jersey — Mississippi River
(June). Lake, Halfday — swamp, May 15, 1938, #70; Lake Forest
— pond. May 15, 1938, #71. Macon, Decatur— Lake Decatur
(June-Nov.); park pond (June, Dec); Harristown — Sangamon
River (June, July, Sept.). Madison — Mississippi River (June).
CLASSIFIED CATALOG OF ILLINOIS ALGAE 153
Mason, Havana — Illinois River (all months). Massac — Ohio
River (June). McHenry, Algonquin — Fox River ("summer");
McHenry— swamp E. of McCullom Lake, July 6, 1939, #380,
385 ; Ridgefield— small pond, July 7, 1939, #418. Menard, Peters-
burg— Sangamon River (June, July, Sept.). Monroe — Missis-
sippi River (June). Ogle, Grand Detour— slough (June-Aug.).
Piatt, Monticello — Sangamon River (May-Sept.). Pike — Missis-
sippi River (June). Pulaski — Ohio River (June); Wetaug — sink-
hole ponds (Apr., July, Sept., Dec). Randolph — Mississippi
River (June). Sangamon, Illiopolis, Riverton, Springfield —
Sangamon River (June-Sept.). St. Clair— Mississippi River
(June). Union, Larue— Wolf Lake (June-Aug.). Wabash, Mt.
Carmel— Wabash River (Apr.). Whiteside, Erie — Hatwood and
Rock River Sloughs (June-Aug.); Sterling— Rock River ("sum-
mer").
Order: COLACIALES
Family: COLACIACEAE
COLACIUM Ehrenberg, 1833
CALVUM Stein. Walton, loc. cit., p. 401. pi. 21. f. 15 (1915).
Kofoid 1908, p. 72: Mason, Havana — Illinois River (Apr.-Oct.).
VESicuLOSUM Ehr. Walton, loc. cit., p. 400. f. 13 (1915).
Kofoid 1908, p. 72: Mason, Havana — Illinois River (June, Sept.)
EXCLUDED SPECIES
The following list of algae consists of species reported from Illinois
which the writer has been unable to place in the catalog with any de-
gree of certainty consistent with modern interpretations of the algae.
Most of these records are from the earlier Illinois reports and consist
mainly of old names involving considerable taxonomic confusion and
inconsistency of treatment by various workers. In the absence of the
specimen on which the records were based, it seems useless to retain
them as authentic records although it is perhaps possible some few
can be correctly interpreted by special students of certain algal
groups. Specialists have been consulted with regard to the excluded
species of diatoms, blue-green algae and the genera of the family
Zygnemataceae and the opinions of these specialists followed in the
exclusion of the listed species of these algal groups. These reports have
not been included in the totals of genera and species reported for the
State and recorded elsewhere in the catalog. The only data given are
the references to publications in which the species were reported.
1. Aphanothece clathrata W. & G. S. West. (Britton 1940, p. 71.)
According to Dr. F. Drouet the validity of this species is ques"
tionable.
2. Cerasterias longispina (Perty) Reinsch. (Kofoid 1908, p. 34.)
3. C. raphidioides Reinsch. (Kofoid 1908, p. 34.)
4. Ceratium brevicorne Hempel. (Hempel 1896, p. 310; 1898, p. 330;
Kofoid 1908, p. 71.)
5. Cladophora glomerata var. callicoma. (Solheim & Penfound 1928,
p. 86.)
6. Conferva vulgaris Rab. (Johnson & Atwell 1890, p. 19.)
7. Cylindrocapsa amoena Wolle. (Johnson & Atwell 1890, p. 19.)
8. Dinobryon cylindricum var. angulatum (Seligo) Lemm. (Kofoid
1908, p. 78.)
9. D. c. var. schauinslandii (Lemm.) Lemm. (Kofoid 1908, p. 78.)
10. D. elongatum var. undulatum Lemm. (Kofoid 1908, p. 78.)
11. D. sertularia var. alpinum Imhof. (Kofoid 1908, p. 78.)
12. D. s. var. angulatum Seligo. (Hempel 1898, p. 323; Kofoid 1908,
pp. 74, 320.)
13. D. s. var. divergens Imhof. (Hempel 1898, p. 232; Kofoid 1908,
pp. 74, 320.)
14. D. s. var. stipitatum. (Kofoid 1908, pp. 74, 321.)
15. D. s. var. undulatum. (Hempel 1898, p. 323; Kofoid 1908, p. 74.)
16. Euglena minuta. (Agersborg 1930, pp. 109, 110, 113.)
17. Gomphosphaeria lacustris Chod. (Daily 1938, p. '80.)
According to Dr. F. Drouet the validity of this species is
questionable.
154
EXCLUDED SPECIES 155
18. Lyngbya obscura. (Johnson & Atwell 1890, p. 21.)
19. Melosira lacustris Chase. (Thomas & Chase 1887, p. 329.)
20. Microcoleus anguiformis Harv. (Johnson & Atwell 1890, p. 21.)
21. M. chthonoplastes Thuret. (Tilden 1910, p. 156.)
The Illinois record was based on Johnson & Atwell's report of
M. anguiformis.
22. Microthamnion exiguum Reinsch. (Transeau 1913B, p. 86.)
23. Navicula staurifera Thomas. (Thomas & Chase 1887, p. 330.)
24. Oscillaria froelichii var. dubia'Rab. (Johnson & Atwell 1890, p.
21.)
25. O. f. var. genuina. (Johnson & Atwell 1890, p. 21.)
26. O. tenerrima Kuetz. (Johnson & Atwell 1890, p. 21.)
27. Oscillatoria amphibia Ag. (Transeau 1913B, p. 70; Solheim &
Penfound 1928, p. 86.)
Occurs in brackish and thermal waters and is a doubtful Illi-
nois record according to Dr. F. Drouet.
28. O. cruenta Grun. (Johnson & Atwell 1890, p. 21.)
29. O. nigra Vauch. (Johnson & Atwell 1890, p. 21.)
30t O. subtilissima Kuetz. (Johnson & Atwell 1890, p. 21; Solheim &
Penfound 1928, p. 86.)
31. Pleurococcus vulgaris Menegh. (Transeau 1913C, p. 34.)
32. Pleurosigma minor. (Thomas & Chase 1887, p. 330.)
33. Protococcus viridis var. gigas Kuetz. (Johnson & Atwell 1890,
p. 19.)
34. Raphidium polymorphum var. contortum Wolle. (Johnson &
Atwell 1890, p. 19.)
35. Spirogyra adnata Kuetz. (Johnson & Atwell 1890, p. 19.)
36. S. fusco-atra Rab. (Johnson & Atwell 1890, p. 20.)
37. S. lutetiana Kuetz. (Johnson & Atwell 1890, p. 20.)
38. S. rectispira Merriman. (O'Hanlon 1930, p. 98.)
39. S. rivularis (Hass.) Rab. (Johnson & Atwell 1890, p. 20.)
40. S. subaequa Kuetz. (Johnson & Atwell 1890, p. 20.)
41. S. weberi var. elongatum Rab. (Johnson & Atwell 1890, p. 20.)
42. Stigeoclonium tenue var. uniforme Rab. (Johnson & Atwell 1890,
p. 19.)
43. Surirella campylodiscus. (Bailey 1845, p. 34.)
44. Synedra simalongis W. S. (Thomas & Chase 1887, p. 330.)
45. Tetrapedia gothica Reinsch. (Kofoid 1908, p. 22.)
A very questionable and inadequately known species.
46. Trachelomonas torta Stokes. (Hempel 1898, p. 323; Kofoid 1908,
p. 91.)
47. T. volvocina var. rugulosa Kuetz. (Kofoid 1908, p. 91.)
48. Uroglena radiata Calkins. (Kofoid 1908, p. 91.)
49. Vaucheria macrospora. (O'Hanlon 1930, p. 100.)
50. Zygnema stellinum var. genuinum Kirch. (Johnson & Atwell
1890, p. 20.)
BIBLIOGRAPHY
Papers preceded by an asterisk are those publications containing Illinois
algal records on which the catalog is based.
♦Adcock, F. 1922. Ecological survey of the fauna of Lake Knox. Trans.
111. State Acad. Sci. 15: 186-199.
*Agersborg, H. P. K. 1930. Does high temperature in a frigid country
limit diversification of the species? Ihid. 22: 103-114. figs. 1-6.
♦Ahlstrom, E. H. 1936. The deep-water plankton of Lake Michigan.
Trans, Amer. Micr. Soc. 55: 286-299. pi. 34.
* . 1937. Studies on variability in the Genus Dinobryon. Ihid. 56:
139-159. pis. 1-4.
♦Atwell, C. B. 1889. A deep-water Nostoc. Bot. Gaz. 14: 291-292.
*Babcock, H. H. 1872A. Chicago hydrant water. Grevillea 1: 13.
* . 1872B. On the effect of the reversal of the current of the Chicago
River on the hydrant water. The Lens 1: 103-106.
*Bailey, J. W. 1845. Notes on the Infusoria of the Mississippi River.
Proc. Boston Nat. Hist. Soc. 2: 33-35.
*Baker, F. C. 1922. The molluscan fauna of the Big Vermilion RWer,
Illinois. 111. Biol. Monog. 7: 7-126. pis. 1-15.
*BayIis, J. R., and Gerstein, H. H. 1929. Microorganisms in the Lake
Michigan water at Chicago. Their effect on filtration and method for
counting. Munic. News and Water Works 76: 291-296.
Boyer, C. S. 1927. Synopsis of the North American Diatomaceae, Part I.
Proc. Acad. Nat. Sci., Phila. Suppl. 78: 1-228; Part II, ibid. 79: 11^-
583.
*Briggs, S. A. 1872A. The Diatomaceae of Lake Michigan. The Lens 1:
41-44.
* . 1872B. Rhizosolenia eriensis H. L. Smith. Grevillea /; 14.
* . 1872C. Rhizosolenia eriensis H. L. Smith. The Lens. Jan., 1872.
*Bntton, M. E. 1940. A check-list of Illinois algae with some additions
from Cook County (a summary). Trans. 111. State Acad. Sci. 33: 71-72.
* . 1941. Distribution of algae in the Chicago Region. Doctoral dis-
sertation, Northwestern University.
* . 1942. Notes on the distribution of some rarely reported species
of Oedogonium. Trans. 111. State Acad. Sci. 35: 58-59.
*Brown, H. J. 1929. The algal family Vaucheriaceae. Trans. Amer.
Micr. Soc. 48: 86-117. pis. 15-20, figs. 1-42.
Chodat, R. 1926. Scenedesmus. Etude de Genetique, de Systematique
Experimentale et d'Hydrobiologie. Revue d'Hydrologie 3: 71-268. figs.
1-162.
*Clinton, G. P. 1894. Pleodorina in Illinois. Bot. Gaz. 19: 383.
♦Collins, F. S. 1909. The green algae of North America. Tufts College
Studies, Sci. Ser. 2: 79-480. pis. 1-18.
* . 1912. The green algae of North America. Suppl. Paper. Ihid. 3:
69-109. pis. 1-2.
* . 1918. The green algae of North America. 2nd Suppl. Ihid. 4:
1-106. pis. 1-3.
156
BIBLIOGRAPHY 157
Czurda, V. 1932. Zygnemales (2nd ed.), in A. Pascher, Die Susswasser-
flora Mitteleuropas Heft 9: 1-232. figs. 1-226.
*Daily, W. A. 1938. A quantitative study of the phytoplankton of Lake
Michigan, collected in the vicinity of Evanston, Illinois. Butler Univ.
Bot. Stud. 4: 65-83.
*Damann, K. E. 1940. Phytoplankton study of Lake Michigan at Evans-
ton, Illinois. Trans. 111. State Acad. Sci. 33: 68-70.
* . 1941. Quantitative study of the phytoplankton of Lake Michi-
gan at Evanston, Illinois. Butler Univ. Bot. Stud. 5: 27-44. figs. 1-3.
♦Davis, B. M. 1904. Oogenesis in Vaucheria. Bot. Gaz. 38: 81-97. pis.
6-7, figs. 1-14.
Deflandre, M. G. 1926. Monographic du Genre Trachelomonas Ehr. Rev.
Gen. de Bot. 38: 358-380, 449-469, 518-528, 580-592, 646-658, 687-
706. pis. 15-29, figs. 1-810.
. 1927. Monographic du Genre Trachelomonas Ehr. Ibid. 39: 26-51,
73-96.
DeToni, J. 1889. Sylloge Algarum. I, Chlorophyceae. Padua.
. 1891-1894. Sylloge Algarum. II (1-3), Bacillarieae. Padua.
. 1907. Sylloge Algarum. V, Myxophyceae. Padua.
Drouet, F. 1937. The Brazilian Myxophyceae, I. Amer. Jour. Bot. 24:
598-608. figs. 1-5.
. 1938. The Brazilian Myxophyceae, II. Ibid. 25: 657-666.
. 1938. The Oscillatoriaceae of southern Massachusetts. Rhodora
40: 221-241, 255-273. figs. 1-9.
. 1942. Studies in Myxophyceae, I. Field Mus. Nat. Hist., Bot.
Ser. 20: 125-141. pis. 1-3, figs. 1-19.
-, and Daily, W. A. 1939. The planktonic freshwater species of
Microcystis. Ibid. 20: 67-83.
*Eddy, S. 1924. Presence of living organisms in lake ice. Trans. 111.
State Acad. Sci. 17: 85-86.
* . 1925. Freshwater algal succession. Trans. Amer. Micr. Soc. 44:
138-147. fig. 1.
* . 1927A. A study of algal distribution. Ibid. 46: 122-138.
* . 1927B. The plankton of Lake Michigan. Bull. 111. Nat. Hist.
Surv. 17: 203-232.
* . 1930. The freshwater armored or thecate Dinoflagellates. Trans.
Amer. Micr. Soc. 49: 277-321. pis. 28-35, figs. la-58d.
. 1931A. The plankton of the Sangamon River in the summer of
1929. Bull. 111. Nat. Hist. Surv. 19: 469-486.
. 1931B. The plankton of some sink-hole ponds in southern Illi-
nois. Ibid. 19: 449-467.
. 1934. A study of freshwater plankton communities. 111. Biol.
Monog. 12: 321-413.
-, and Simer, P. H. 1928. Notes on the food of the Paddlefish and
the plankton of its habitat. Trans. 111. State Acad. Sci. 21: 59-68.
♦Forbes, S. A. 1880. On the food of young fishes. 111. State Lab. Nat.
Hist. 1: 66-79.
* . 1883A. The fauna of Lake Michigan and the smaller lakes of the
northeastern part of Illinois. Science /.• 493-496.
158 A CATALOG OF ILLINOIS ALGAE
* . 1883B. The food of the smaller freshwater fishes. Bull. 111. State
Lab. Nat. Hist. 1: 65-94.
. 1888A. Studies of the food of freshwater fishes. Ihid. 2: 433-473.
. 1888B. On the food relations of freshwater fishes: a summary
and discussion. Ibid. 2: 475-538.
, and Richardson, R. E. 1913. Studies on the biology of the upper
Illinois River. Ibid. 9: 481-574.
and . 1919. Some recent changes in Illinois River biology
Ibid. 13: 139-156.
*GaltsofT, P. S. 1924. Limnological observations in the upper Mississippi,
1921. U. S. Bur. Fish. Bull. 39: 347-438.
*Garman, H. 1890. A preliminary report on the animals of the Mississippi
Bottoms near Quincy, Illinois, in August, 1886, Part I. Bull. 111. State
Lab. Nat. Hist. 3: 123-184. (1896)
*Gates, F. C. 1912. The vegetation of the beach area in northeastern Illi-
nois and southeastern Wisconsin. Ibid. 9: 255-372.
Geitler, L. 1932. Cyanophyceae. In Rabenhorst's Kryptogamen-Flora
von Deutschland, Osterreich und der Schweiz. Band 14: 1-1196. figs.
1-780.
, and Pascher, A. 1925. Cyanophyceae, Cyanochloridineae, Chlo-
robacteriaceae. In A. Pascher, Siisswasserflora Deutschlands, Osterreich
und der Schweiz. Heft 12: 1-481. figs. 1-574.
*Hazen, T. E. 1899. The life history of Sphaerella lacustris. Mem. Torn
Bot. Club 6: 211-246. pis. 86, 87.
. 1902. The Ulotrichaceae and Chaetophoraceae of the United
States. Ibid. 11: 135-250. pis. 20-42.
♦Hedgecock, G. G., and Hunter, A. 1899. Notes on Thorea. Bot. Gaz. 28:
425-429.
Heering, W. 1914. Ulotrichales, Microsporales, Oedogoniales. In A.
Pascher, Die Siisswasserflora Deutschlands, Osterreich und der Schweiz.
Heft 6. Chlorophyceae 3. pp. 1-250. figs. 1-385.
. 1921. Siphonocladiales, Siphonales. Ibid. Heft 7. Chlorophyceae
4. pp. 1-103. figs. 1-95.
*Hempel, A. 1896. New species of Rotifera and Protozoa. Bull. 111. State
Lab. Nat. Hist. 4: 310-318. (1898).
* . 1898. A list of the Protozoa and Rotifera found in the Illinois
River and adjacent lakes at Havana, Illinois. Ibid. 5 : 301-388. (1902).
Hirn, K. E. 1900. Monographic und Iconographie der Oedogoniaceen.
Acta Soc. Fennicae 27: 1-394. pis. 1-64, figs. 1-396.
Hoffman, Wm. E., and Tilden, J. E. 1930. Basicladia, a new genus of
Cladophoraceae. Bot. Gaz. 89: 374-383. figs. 1-22.
*Houdek, P. K. 1923. An ecological survey and flora of Lake Knox.
Trans. 111. State Acad. Sci. 16: 163-170.
Hustedt, Fr. 1930. Bacillariophyta (Diatomeae). In A. Pascher, Die
Siisswasserflora Mitteleuropas. Heft 10: 1-466. figs. 1-875.
. 1930. Die Kieselalgen. In Rabenhorst's Kryptogamen-Flora von
Deutschland, Osterreich und der Schweiz. Band 7, Teil 1. pp. 1-920.
figs. 1-542.
. 1931-1937. Die Kieselalgen. Ibid. Band 7, Teil 2, Leiferung 1-5.
pp. 1-736. figs. 543-1105.
BIBLIOGRAPHY 159
Hylander, C. J. 1928. The algae of Connecticut. Bull. Conn. Geol. and
Nat. Hist. Surv. 42: 9-245. pis. 1-28.
Irenee-Marie, Fr. 1939. Flore Desmidiale de la Region de Montreal, pp.
5-547. pis. 1-69. Laprairie.
*Jelliffe, S. E. 1893. The Chicago water supply in the World's Fair
Grounds. Amer. Mo. Micr. Jour. 14: 310-311.
*Jewell, M. E. 1920. The quality of water in the Sangamon River. 111.
Water Surv. 16: 230-246.
* . 1922. The fauna of an acid stream. Ecology 3: 22-28.
*Johnson, L. N. 1894. Some new and rare desmids of the United States.
Bull. Torr. Bot. Club 21: 285-291. pi. 211, figs. 1-17.
. 1895. Some new and rare desmids of the United States, II. Ihid.
22: 289-298. pis. 232-233, figs. 1-35.
-, and Atwell, C. B. 1890. Freshwater algae of Cook County, Illi-
nois. Rept. Northwestern Univ. Dept. Nat. Hist. 1890: 18-21.
*Kofoid, C. A. 1898. Plankton studies II. On Pleodorina illinoisensis, a
new species from the plankton of the Illinois River. Bull. 111. State Lab.
Nat. Hist. 5; 273-293. pis. 36-37.
* . 1899. Plankton studies III. On Platydorina, a new genus of the
family Volvocidae, from the plankton of the Illinois River. Ibid. 5 : 419-
440. pi. 38.
* . 1900. Plankton studies. Ann. Mag. Nat. Hist. (Sen 7) 6: 541-
558. pi. 7, figs. l-5e.
1903. Plankton studies IV. The plankton of the Illinois River,
1894-1899, with introductory notes upon the hydrography of the Illinois
River and its Basin. Part I, Quantitative investigations and general
results. Bull. 111. State Lab. Nat. Hist. 6: 95-635. pis. 1-50.
1908. Plankton studies V. The plankton of the Illinois River,
1894-1899. Part II, Constituent organisms and their seasonal distribu-
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Krieger, W. 1937. Conjugatae: Die Desmidiaceen. In Rabenhorst's
Kryptogamen-Flora von Deutschland, Osterreich und der Schweiz.
Band 13, Abteil. 1, Teil 1. pp. 1-712. pis. 1-96. Test figs. 1-33.
. 1939. Conjugatae: Die Desmidiaceen. Ibid. Band 13, Abteil. 1,
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*Leighton, M. O. 1907. Pollution of the Illinois and Mississippi Rivers by
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figs.
*Marshall, F. T., and Hague, S. M. 1938. Basicladia in Illinois. Trans. 111.
State Acad. Sci. 31: 111-112. figs. 1.
Mills, F. Wm. 1933-34. An index to the genera and species of the Di-
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*0'Hanlon, Sister M. E. 1929. Notes on the algae of Cook County. Trans.
111. State Acad. Sci. 22: 98-102. pis. 1-2, figs. 1-27.
*Ohashi, Hiro. 1930. Cytological study of Oedogonium. Bot. Gaz. 90:
177-196. pis. 1-3, figs. 1-70.
Pascher, A. 1927. Volvocales, Phytomonadineae. Flagellatae 4. Chloro-
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, Schiller, J., and Migula, W. 1925. Heterokontae, Phaeophyta,
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1092. figs. 1-912.
Prescott, G. W. 1927. The motile algae of Iowa. Univ. of Iowa Stud. 12:
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INDEX
Achnanthaceae, 4, 48
Achnanthes, 48
exilis, 48
lanceolata, 48
V. rostrata, 48
microcephala, 48
minutissima, 48
A chnanthidium
flexellum, 48
lanceolatum, 48
V. dubia, 48
Achnanthineae, 4, 48
Actinastrum, 111
hantzschii, 111
V. fluviatile, 112
Actinocyclus, 40
niagarae, 40
Amphipleura, 49
pellucida, 49
Amphiprora, 49
calumetica, 49
ornata, 49
Amphithrix, 29
janthina, 29
Amphora, 61
normani, 61
ovalis, 61
Anabaena, 25
catenula, 25
circinalis, 26
flos-aquae, 26
inaequalis, 26
laxa, 26
oscillarioides, 26
planctonica, 26
spiroides, 27
V. crassa, 27
variabilis, 27
Anacystis, 15
marginata, 15
peniocystis, 15
rupestris, 15
V. prasina, 15
Ankistrodesmus, 106
falcatus, 106
longissimus, 106
Anomoeoneis, 49
exilis, 49
follis, 49
serians, 50
Aphanizomenon, 27
flos-aquae, 27
ovalisporum, 27
Aphanocapsa, 15
brunnea, 15
grevillei, 15
Aphanochaete, 77
repens, 77
Aphanothece
clathrata, 154
stagnina, 15
Apiocystis, 75
brauniana, 75
Arthrodesmus, 133
acutus, 115, 116
convergens, 133
quadricaudatus, 116
Arthrospira
gomontiana, 25
Asterionella, 43
formosa, 43
gracillima, 43
Bacillariophyceae, 3, 37
Basicladia, 82
chelonum, 82
Batrachospermaceae, 3, 30
Batrachospermum, 30
boryanum, 30
Botrydiaceae, 3, ii
Botrydium, 34
granulatum, 34
walrothii, 34
Botryococcaceae, 3, 30
Botryococcus, 31
braunii, 31
sudeticus, 31
Bulbochaete, 85
brebissonii, 85
crassiuscula, 85
crenulata, 85
furberae, 85
gigantea, 85
hiloensis, 85
insignis, 85
V. reticulata, 86
intermedia, 85
minor, 85
mirabilis, 85
nana, 85
nordstedtii, 85
rectangularis, 86
repanda, 86
reticulata, 86
163
164
A CATALOG OF ILLINOIS ALGAE
subintermedia, 86
subsimplex, 86
varians, 86
V. hawaiense, 86
V. subsimplex, 86
Calocylindrus curtus, 136
Caloneis, 50
alpestris, 50
bacillaris, 50
bacillum, 50
fasciata, 50
silicula, 50
V. alpina, 50
V. genuina, 50
V. gibberula, 50
V. inflata, 50
V. undulata, 51
trinodis, 51
Calothrix, 29
kawraiskyi, 29
stagnalis, 29
Campylodiscus, 66
noricus, 66
Carteria, 69
multifilis, 69
Centrales, 3, 37
Cerasterias
longispina, 154
raphidioides, 154
Ceratium, 143
brevicorne, 154
cornutum, 143
hirundinella, 143
kumaonense, 143, 144
Chaetophora, 78
attenuata, 78
elegans, 78
endiviaefolia, 78
incrassata, 78
pisiformis, 79
Chaetophoraceae, 4, 77
Chaetosphaeridium, 82
globosum, 82
pringsheimii, 82
Chamaesiphonales, 3, 19
Characiaceae, 4, 99
Characium, 99
ambiguum, 99
naegelii, 99
pringsheimii, 99
Chlamydococcus pluvialis, 74
Chlamydomonadaceae, 4, 69
Chloraster, 69
gyrans, 69
Chlorella, 106
conductrix, 106
parasitica, 107
vulgaris, 107
Chlorochytrium, 98
knyanum, 98
Chlorococcaceae, 4, 98
Chlorococcales, 4, 98
Chlorococcum, 98
humicola, 98
Chlorophyceae, 4, 69
Chlorophyta, 4, 69
Chlorotylium, 79
mammiforme, 79
Chromulineae, 3, 34
Chroococcaceae, 3, 15
Chroococcales, 3, 15
Chroococcus, 16
limneticus, 16
minutus, 16
rufescens, 16
turgidus, 16
Chrysomonadales, 3, 34
Chrysophyceae, 3, 34
Chrysophyta, 3, 30
Chrysophaerella, 34
longispina, 34
Cladophora, 82
canalicularis, 82
crispata, 82
fracta, 83
f. flowtowiana, 83
flowtowiana, 83
glomerata, 83
V. callicoma, 154
kuetzingiana, 84
Cladophoraceae, 4, 82
Cladophorineae, 4, 82
ClathrocysHs, 17
aeruginosa, 17
Closteriopsis, 107
longissima, 107
Closterium, 133
acerosum, 133
V. elongatum, 134
acutum, 134
braunii, 134
dianae, 134
didymotocum, 134
ehrenbergii, 134
gracile, 134
V. elongatum, 134
intermedium, 134
juncidum v. brevior, 135
lanceolatum, 135
INDEX
165
leibleinii, 135
littorale, 135
lunula, 135
moniliferum, 135
obtusum, 133
parvulum, 135
pritchardianum, 135
strigosum, 135
striolatum, 135
V. elongatum, 136
V. intermedium, 134
suhtruncatum , 134, 135
turgidum, 136
venus, 136
Cocconeis, 48
communis, 48, 49
flexella, 48
lineata, 49
pediculus, 48
placentula, 49
V. lineata, 49
Cocconema cymhiforme, 63
Coelastraceae, 4, 105
Coelastrum, 105
cambricum, 105
microporum, 105
reticulatum, 106
sphaericum, 106
Coelosphaerium, 16
collinsii, 16
kuetzingianum, 16
naegelianum, 16
Colaciaceae, 4, 153
Colaciales, 4, 153
Colacium, 153
calvum, 153
vesiculosum, 153
Coleochaetaceae, 4, 81
Coleochaete, 81
irregularis, 81
nitellarum, 82
orbicularis, 82
scutata, 82
soluta, 82
Colletonema
lacustre, 62
Conferva bombycina, 32
minor, 33
utriculosa, 2>3
vulgaris, 154
Coscinodiscaceae, 3, 37
Coscinodiscineae, 3, 37
Coscinodiscus, 37
asteromorphus, 37
asteromphalus, 37
Cosmarium, 136
biretum v. trigibberum, 136
botrytis, 136
broomei, 136
constrictum, 136
crenatum, 136
cucumis, 136
curtum, 136
dentatum, 136
depressum, 137
formosulum, 137
V. nathorstii, 137
granatum, 137
holmiense, 137
V. integrum, 137
meneghinii, 137
moniliforme, 137
nitidulum, 137
pachydermum v. aethiopicum, 137
pericymatium, 137
polygonum, 137
porrectum, 137
protractum, 138
punctulatum, 138
quadrum, 138
quinarium, 138
rectangulare, 138
reniforme, 138
sexangulare, 138
f. minima, 138
speciosum, 138
subcostatum, 138
subcrenatum, 138
subimpressulum, 138
supraspeciosum, 138
triplicatum, 139
turpinii, 139
Cosmocladium, 139
saxonicum, 139
Crucigenia, 112
irregularis, 112
lauterbornei, 112
rectangularis, 112
tetrapedia, 112
Cyanophyta, 3, IS
Cyclotella, 37
antiqua, 37
bodanica, 37
V. michiganensis, 37
V. stellata, 37
comta, 37
V. glabriuscula, 37
glomerata, 37
kuetzingiana, 37
melosiroides, 37
166
A CATALOG OF ILLINOIS ALGAE
meneghiniana, 37
michiganiana, 38
ocellata, 38
operculata, 38
Cylindrocapsa, 77
amoena, 154
geminella, 77
V. minor, 77
Cylindrocapsaceae, 4, 77
Cylindrospermum, 27
licheniforme, 27
majus, 27
muscicola, 27
Cymatopleura, 66
apiculata, 67
elliptica, 66
V. hibernica, 66
f. spiralis, 66
hibernica, 66
solea, 66
V. apiculata, 67
V. subconstricta, 67
V. vulgaris, 67
spiralis, 66
Cymbella, 61
aequalis, 61
affinis, 61
amphicephala, 62
anglica, 62
aspera, 62
cistula V. maculata, 62
cuspidata, 62
cymbiformis, 62
ehrenbergii, 62
gastroides, 62
gracilis, 62
lacustris, 62
laevis, 62
lanceolata, 62
leptoceros, 62
maculata, 62
naviculiformis, 62
parva, 62
prostrata, 63
rotundata, 63
stromatophora, 63
triangulum, 63
tumida, 63
turgida, 63
ventricosa, 63
Cymbellaceae, 4, 61
Dactylococcus, 107
infusionum, 107
Debar ya decussata, 132
Denticula, 64
tenuis, 64
Desmidiaceae, 4, 133
Desmidium, 139
aptogonum, 139
grevillei, 139
swartzii, 139
Diatoma, 42
anceps, 42
elongatum v. tenuis, 42
hiemale, 42
V. genuina, 42
V. mesodon, 43
vulgare, 43
Diatomaceae, 4, 42
Dichotomosiphon, 117
tuberosus, 117
Dictyosphaerium, 107
ehrenbergianum, 107
pulchellum, 107
Dimorphococcus, 108
lunatus, 108
Dinobryon, 35
bavaricum, 35
cylindricum, 35
V. angulatum, 154
V. divergens, 35
V. palustre, 35
V. pediforme, 36
V. schauinslandii, 154
divergens, 35
elongatum, 35
V. undulatum, 154
pediforme, 36
protuberans, 36
sertularia, 36
V. alpinum, 154
V. angulatum, 154
V. divergens, 154
V. protuberans, 36
V. stipitatum, 154
V. thyrsoideum, 36
V. undulatum, 154
sociale, 36
V. americanum, 36
stipitatum v. americanum, 36
V. bavaricum, 35
Dinoflagellatae, 4, 142
Dinophyceae, 4, 142
Diploneis, 51
elliptica, 51
puella, 51
Docidium trabecula, 141
Draparnaldia, 79
acuta, 79
INDEX
167
glomerata, 79
plumosa, 80
ravenelii, 80
Encyonema caespitosum, 63
prostratum, 63
triangulum, 63
ventricosum, 63
Endosphaeraceae, 4, 98
Epithemia, 63
alpestris, 63
argus, 63
V. alpestris, 63
V. amphicephala, 63
gibba, 64
muelleri, 63
ocellata, 64
sorex, 64
turgida, 64
V. westermanii, 64
ventricosa, 64
zebra, 64
Euastrum, 139
johnsonii, 139
oblogum, 139
pulchellum, 139
Eticocconeis
flexella, 48
Eudorina, 69
elegans, 69
Euglena, 145
acus, 145
acutissima, 146
deses, 146
elongata, 146
geniculata, 146
gracilis, 146
minuta, 154
oblonga, 146
oxyuris, 146
sanguinea, 147
spirogyra, 147
spiroides, 147
torta, 147
tripteris, 147
triqueter, 151
viridis, 147
Euglenaceae, 4, 145
Euglenales, 4, 145
Euglenophyceae, 4, 145
Euglenophyta, 4, 145
Eunotia, 47
flexuosa, 47
formica, 47
lunaris, 47
major, 47
monodon v. major, 47
pectinalis v. minor, 48
•westermanii, 64
Eunotiaceae, 4, 47
Eupodiscaceae, 3, 40
Fragilaria, 43
capucina, 43
V. mesolepta, 43
constricta, 44
construens, 44
V, venter, 44
crotonensis, 44
V. prolongata, 44
harrisonii, 44
V. rhomboides, 44
mutabilis, 44
parasitica, 46
pinnata, 44
V. lancettula, 44
rhabdosoma, 43
virescens, 45
Fragilariaceae, 4, 43
Fragilarineae, 4, 41
Frustulia, 51
rhomboides, 51
viridula, 51
vulgaris, 51
Gaillonella distans, 38
Genicularia, 132
spirotaenia, 132
Glenodiniaceae, 4, 142
Glenodinium, 142
cinctum, 142
gymnodinium, 142
palustre, 142
quadridens, 142
Gloeocapsa
polydermatica, 15
Gloeocystis, 74
ampla, 74
gigas, 74^
planctonica, 74
Gloeotaenium, 108
loitlesbergerianium, 108
Gloeotrichia, 30
natans, 30
pisum, 30
Golenkinia, 98
radiata, 98
Gomphoneis, 59
herculeana, 59
V. robusta, 59
168
A CATALOG OF ILLINOIS ALGAE
Gomphonema, 59
acuminatum, 59
V. coronatum, 59
V. elongatum, 59
V. intermedia, 59
V. laticeps, 59
V. trigonocephalum, 59
V. turris, 60
angustatum, 60
V. obtusatum, 60
capitatum, 60
coronatum, 59
constrictum, 60
V. capitatum, 60
f. turgidum, 60
curvatum, 49
dichotomum, 60
eriense, 59
geminatum, 60
gracile v. dichotoma, 60
herculeanum, 59
intricatum, 60
V. vibrio, 61
laticeps, 59
montanum v. subclavatum, 61
olivaceum, 61
V. calcarea, 61
parvulum, 61
robustum, 59
semiapterum, 61
sphaerophorum, 61
subclavatum, 61
trigonocephalum, 59
turgidum, 60
turris, 60
vibrio, 61
Gomphonemataceae, 4, 59
Gomphosphaeria, 17
aponina, 17
lacustris, 154
Gonatozygon, 132
brebissonii, 132
Gonium, 70
pectorale, 70
sociale, 71
Gonyaulax palustre, 142
Gyrosigma, 52
acuminatum, 52
attenuatum, 52
eximium, 52
kuetzingii, 52
scalproides, 52
spencerii, 52
wormleyi, 52
Haematococcus pluvialis, 74
Hantzschia, 64
amphioxys, 64
f. capitata, 65
V. vivax, 65
Herposteiron confervicola, 78
Heterococcales, 3, 30
Heterocystineae, 3, 25
Heterodiniaceae, 4, 143
Heterosiphonales, 3, 33
Heterotrichales, 3, 32
Homocystineae, 3, 19
Hormogonales, 3, 19
Hyalotheca, 140
dissiliens, 140
mucosa, 140
Hydrodictyaceae, 4, 99
Hydrodictyon, 99
reticulatum, 99
utriculatum, 99
Ineffigiata neglecta, 31
Isochrysidineae, 3, 34
Kentrosphaera, 98
facciolaae, 98
Kirchneriella, 108
lunaris, 108
obesa v. major, 108
Lepocinclis, 148
ovum, 148
Lyngbya, 19
aerugineo-caerulea, 19, 25
aestuarii, 19
birgei, 19
diguettii, 19
obscura, 155
phormidium v. rivularis, 25
putealis, 19
taylorii, 19
versicolor, 20
Lysigonium granulatum, 38
varians, 39, 40
Mallomonadaceae, 3, 34
Mallomonas, 34
acaroides, 34
caudata, 34
plosslii, 34
producta, 34
Mastogloia, 52
smithii, 52
V. amphicephala, 53
v. lacustris, 53
INDEX
169
Melosira, 38
crenulata, 38
distans, 38
granulata, 38
V. spinosa, 38
italica, 39
V. tenuissima, 39
juergensii, 39
lacustris, 155
suhflexilis, 39
varians, 39
Meridion, 42
circulare, 42
V. constricta, 42
V. zinkenii, 42
constrictum, 42
Meridionaceae, 4, 42
Merismopoedia, 17
convoluta, 17
glauca, 17
tenuissima, 17
Mesocarpus nummuloides , 120
scalaris, 120
Mesotaeniaceae, 4, 132
Micractinium, 113
pusillum, 113
quadrisetum, 113
Micrasterias, 140
americana, 140
boryana, 99
elliptica, 99
rotata, 140
tricyclia, 99
truncata, 140
Microcoleus, 20
acutissimus, 20
anguiformis, 155
chthonoplastes, 155
lacustris, 20
vaginatus, 20
Microcystis
aeruginosa, 17, 18
flos-aquae, 17, 18
ichthyoblabe, 17
incerta, 18
Microneis minutissima, 48
Microspora, 76
floccosa, 76
pachyderma, 76
quadrata, 77
stagnorum, 77
tumidula, 77
willeana, 77
Microsporaceae, 4, 76
Microthamnion, 80
exiguum, 155
kuetzingianum, 80
strictissimum, 80
Mougeotia, 119
boodlei, 119
calcarea, 119
divaricata, 120
elegantula, 119
floridana, 119
genuflexa, 119
V. gracilis, 120
gracillima, 120
mirabilis, 119, 120
notabilis, 121
nummuloides, 120
quadrangulata, 120
reinschii, 120
robusta, 120
V. biornata, 120
scalaris, 120
sphaerocarpa, 120
tenuis, 121
transeauii, 121
tumidula, 121
viridis, 121
Myxophyceae, 3, 15
Navicula, 53
ambigua, 53
f. craticularis, 53
amphirhyncus, 55
anglica, 53
appendiculata, 56
bacillaris, 50
bacillum, 53
bicapitata, 57
brebissonii, 56
cardinalis, 56
confervacea, 53
cryptocephala, 53
cuspidata, 53
dicephala, 53
V. elginensis, 53
diver gens, 56
dubia, 55
elliptica, 51
V. minutissima, 51
exigua, 53
exilis, 49
gastrum, 53
gibba, 56
globiceps, 57
gracilis, 54
hemiptera, 57
hitchcockii, 55
170
A CATALOG OF ILLINOIS ALGAE
iridis, 55
V. afflnis, 56
V. amphigomphus, 55
V. amphirhyncus, 55
V. firma, 56
V. producta, 56
lacunarum, 50
limosa, 50
V. subinflata, 50
V. undulata, 51
major, 57
mesolepta, 57
mutica, 54
nobilis, 57
oblonga, 54
V. subcapitata, 54
parva, 57
platystoma, 54
protracta, 54
punctata, 55
pupula, 54
radiosa, 54
V. tenella, 54
reinhardtii, 54
rhomboides, 51
rhyncocephala, 54
salinarum, 54
V. intermedia, 55
saugerri, 55
scutelloides, 55
seminulum, 55
serians, 50
sigma, 52
silicula V. gibberula, 50
staurifera, 155
tabellaria, 57
lenella, 54
termes, 57
trinodis, 51
trochus, 49
tumida, 53
tuscula, 55
varians, 53
viridis, 58
viridula, 55
Naviculaceae, 4, 49
Naviculineae, 4, 49
Neidium, 55
amphigomphus, 55
amphirhyncus, 55
dubium, 55
hitchcockii, 55
iridis, 55
V. firma, 56
productum, 56
Nemalionales, 3, 30
Nephrocytium, 108
agardhianum, 108
lunatum, 108
Netrium, 133 .
digitus, 133
Nitzschia, 65
acicularis, 65
amphioxys, 64
clausii, 65
closterium, 65
commutata, 65
denticula, 65
dissipata, 65
hungarica, 65
linearis, 65
V. tenuis, 65
palea, 65
V. tenuirostris, 65
sigmoidea, 65
sinuata, 66
V. tabellaria, 66
tabellaria, 66
vermicularis, 66
Nitzschiaceae, 4, 64
Nodularia, 28
harveyana v. sphaerocarpa, 28
sphaerocarpa, 28
spumigena, 28
Nostoc, 28
carneum, 28
ellipsosporum, 28
muscorum, 28
pruniforme, 28
spongiaeforme, 28
verrucosum, 28
Nostocaceae, 3, 25
Ochromonadaceae, 3, 35
Ochromonadineae, 3, 35
Oedogoniaceae, 4, 85
Oedogoniales, 4, 85
Oedogonium, 86
acmandrium, 86
V. stictospermum, 86
acrosporum, 86
f. connectens, 87
americanum, 87
amplum, 87
angustum, 87
areschoughii v. americanum, 96
aster, 87
bohemicum, 87
borisianum, 87
boscii, 87
INDEX
171
braunii, 87
capillare, 87
capilliforme, 87
capitellatum, 88
cardiacum, 88
V. carbonicum, 88
concatenatum, 88
V. superornatum, 88
crassiusculum, 88
V. cataractum, 88
V. idioandrosporum, 91, 92
crassum v. amplum, 87
crenulatocostatum, 88
V. cylindricum, 89
crispum, 89
V. gracilescens, 89
croasdaleae, 89
cryptoporum, 89
V. vulgare, 97
curvum, 89
cyathigerum, 89
, decipiens, 89
V. africanum, 90
V. dissimile, 90
diversum, 90
echinospermum, 90
epiphyticum, 90
flavescens, 90
fragile, 90
V. abyssinicum, 90
franklinianum, 90
globosum, 90
gracilius, 91
gracilHmum, 91
grande, 91
V. aequatoriale, 91
V. angustum, 87
V. majus, 93
f. robustum, 93
howardii, 91
V. minus, 91
hystricinum, 91
idioandrosporum, 91
illinoisense, 92
intermedium, 92
irregulare, 92
kirchneri, 92
laeve, 92
lemmermanii, 92
longiarticulatum, 92
longicolle, 92
macrandrium, 92
V. aemulans, 92
V. propinquum, 92
macrospermum, 93
magnusii, 93
majus, 93
mitratum, 93
monile, 93
multisporum, 93
oblongellum, 93
oblongum, 93
V. majus, 94
oboviforme, 94
obsoletum, 94
obtruncatum, 94
occidentale, 94
ouchitanum, 94
paludosum, 94
V. parvisporum, 94
paucocostatum, 94
paulense, 94
perfect um, 94
pisanum, 94
V. gracilis, 90
plagiostomum, 95
V. gracilius, 91
plusiosporum, 95
pratense, 95
praticolum, 95
pringsheimii, 95
V. nordstedtii, 95
propinquum, 93
pseudo-boscii, 95
punctatostriatum, 95
punctatum, 95
pugens, 95
pusillum, 95
rivulare, 95
rothii, 96
rufescens, 96
V. exiguum, 96
V. lundellii, 96
rugulosum, 96
V. minutum, 96
simplex, 96
sociale, 96
subplenum, 96
suecicum, 96
taphrosporum, 97
tentoriale, 97
undulatum, 97
upsaliense, 97
varians, 97
vaucherii, 97
vulgare, 97
welwitschii, 97
woUeanum, 97
Onychonema, 140
laeve v. latum, 140
172
A CATALOG OF ILLINOIS ALGAE
Oocystaceae, 4, 106
Oocystis, 108
borgei, 108
crassa, 108
elliptica, 109
gigas, 109
naegelii, 109
solitaria, 109
f. major, 109
Ophiocytiaceae, 3, 31
Ophiocytium, 31
arbusculum, 31
capitatum, 31
cochleare, 31
gracilipes, 31
majus, 32
parvulum, 32
Oscillaria
aerugineo-caerulea, 19
antliaria, 23
froelichii v. dubia 155
V. genuina, 155
V. viridis, 21
gracillima, 22
natans, 23
tenerrima, 155
Oscillatoria, 20
acuminata, 20
agardhii, 20
amoena, 21
amphibia, 155
animalis, 21
articulata, 21
chalybea, 21
chlorina, 21
cruenta, 155
curviceps, 21
formosa, 21, 23
geminata, 21
limosa, 21
minnesotensis, 24
nigra, 155
ornata, 22
princeps, 22
prolifica, 22
sancta, 22
splendida, 22
subsalsa, 21
subtilissima, 155
tenuis, 23
V. natans, 23
Oscillatoriaceae, 3, 19 •
Palmella, 74
miniata, 74
Palmellaceae, 4, 74
Pandorina, 71
morum, 71
Pediastrum, 99
angulosum, 99
boryanum, 99
V. longicorne, 100
duplex, 100
V. clathratum, 102
V. rotundatum, 102
ehrenbergii, 103
integrum, 102
pertusum, 100
simplex, 102
V. duodenarium, 103
tetras, 103
V. tetraodon, 104
Penium, 140
margaritaceum, 140
Pennales, 4, 41
Peridiniaceae, 4, 143
Peridiniales, 4, 142
Peridinium, 143
bipes, 143
cinctum, 143
cunningtonii, 142, 143
inconspicuum, 143
pusillum, 143
quadridens, 142, 143
tabulatum, 143
umbonatum, 143
Phacus, 148
acuminata, 148
longicauda, 149
V. torta, 150
pleuronectes, 150
pyrum, 151
triqueter, 151
Phormidium, 23
ambiguum, 23
autumnale, 23
favosum, 23
foveolarum, 23
foveolatum, 23
incrustatum v. cataractarum, 23
inundatum, 24
minnesotense, 24
subfuscum, 24
tenue, 24
uncinatum, 24
Pinnularia, 56
appendiculata, 56
braunii, 56
brebissonii, 56
brevicostata v. leptostauron, 56
INDEX
173
cardinalis, 56
divergens, 56
gibba, 56
globiceps, 57
hemiptera, 57
interrupta f. bicapitata, 57
major, 57
V. tranversa, 57
mesolepta, 57
nobilis, 57
parva, 57
radiosa, 54
tabellaria, 57
termes, 57
viridis, 58
V. elHptica, 58
Pithophora, 84
kewensis, 84
oedogonia, 84
varia, 84
Platydorina, 72
caudata, 72
Plectonema, 28
nostocorum, 28
tomasinianum, 28
Pleodorina, 72
californica, 72
illinoisensis, 73
Pleurocapsa, 19
varia, 19
Pleurocapsaceae, 3, 19
Pleurocarpus
mirahilis, 119, 120
Pleurococcus vulgaris, 155
Pleurosigma, 58
angulatum, 58
attenuatum, 52
eximium, 52
kuetzingii, 52
minor, 155
spencerii, 52
wormleyi, 52
Pleurotaenium, 141
coronatum, 141
ehrenbergii, 141
trabecula, 141
Polyblepharidaceae, 4, 69
Polycystis, 17
aeruginosa, 17
incerta, 18
Polyedrium
hijurcatum, 110
gigas, 110
gracile, 110
trigonum, HI
V. minus. 111
V. tetragonum, HI
Protococcaceae, 4, 81
Protococcus, 81
viridis, 81
V. gigas, 155
Pyrrophyta, 4, 142
Radiofilum, 75
irregulare, 75
Raphidiopsis, 30
curvata, 30
Raphidium falcatum, 106
longissimum, 106
polymorphum, 106
V. contoftum, 155
V. sigmoideum, 106
Rhizochrysidaceae, 3, 36
Rhizochrysidales, 3, 36
Rhizochrysis, 36
limnetica, 36
Rhizoclonium, 84
fontanum, 84
hieroglyphicum, 84
Rhizosolenia, 41
eriensis, 41, 156
gracilis, 41
longiseta, 41
Rhizosoleniaceae, 4, 41
Riiizosolenineae, 4, 41
Rhodophyceae, 3, 30
Rhodophyta, 3, 30
Rhoicosphenia, 49
curvata, 49
Rhopalodia, 64
gibba, 64
ventricosa, 64
Richteriella
botryoides, 113
Rivularia natans, 30
Rivulariaceae, 3, 29
Roya, 133
obtusa, 133
Scenedesmaceae, 4, 1 11
Scenedesmus, 113
abundans, 113
V. longicauda, 113
acuminatus, 113
acutiformis, 113
arcuatus, 113
V. platydisca, 114
armatus, 114
bijuga, 114
174
A CATALOG OF ILLINOIS ALGAE
V. alternans, 114
bijugatus, 114
brasiliensis, 114
carinatus, 114
caudatus, 116
denticulatus, 114
dimorphus, 115
genuinus, 116
longus, 115
V. minutus, 115
minutus, 115
obliquus, 115
opoliensis, 116
platydisca, 114
protuberans, 116
quadricauda, 116
V. abundans, 113
f. horridus, 115
V. quadrispina, 117
f. setosus, 115
V. westii, 117
Schizomeridaceae, 4, 98
Schizomeris, 98
leibleinii, 98
Schizonema
viridulum, 51
vulgar e, 51
Schizothrix, 24
calcicola, 24
purpurascens, 24
rivularis, 25
Schroederia, 109
setigera, 109
Scytonema, 29
cincinnatum, 29
ocellatum, 29
tolypotrichoides, 29
Scytonemataceae, 3, 28
Selenastrum, 109
acuminatum, 113
bibraianum, 109
V. gracile, 109
gracile, 109
Siphonales, 4, 117
Sirogonium, 121
illinoisense, 121
sticticum, 121
Sorastrum, 104
spinulosum, 104
Sphaerella, 74
lacustris, 74
Sphaerellaceae, 4, 74
Sphaerocystis, 74
schroeteri, 74
Sphinclocystis
elliptica, 66
Ubrilis, 66, 67
Spirogyra, 121
adnata, 155
areolata, 121
borgeana, 121
catenaeformis, 121
V. parvula, 127
circumlineata, 122
cleveana, 122
communis, 122
condensata, 122
corrugata, 122
crassa, 122
V. formosa, 124
crassoidea, 122
daedalea, 122
decimina, 123
V. triplicata, 129
denticulata, 123
diluta, 123
discreta, 123
distenta, 123
dubia, 123
ellipsospora, 123
V. crassoidea, 122
Jallax, 124
fluviatilis, 123
formosa, \2^
fusco-atra, 155
gracilis, 124
grevilleana, 124
groenlandica, 124
hassallii, 124
hydrodictya, 124
illinoisensis, 121
inconstans, 124
inflata, 124
v.foveolata, 123
insignis, 125
irregularis, 125
juergensii, 125
iugalis, 125
lagerheimii, 125
longata, 125
lutetiana, 155
majuscula, 125
maxima, 126
micropunctata, 126
mirabilis, 126
narcissiana, 126
neglecta, 126
nitida, 126
novae-angliae, 126
occidentalis, 126
INDEX
175
orthospira, 125
parvula, 127
petitiana, 127
porticalis, 127
pratensis, 127
propria, 127
protecta, 127
punctiformis, 127
quadrata, 127
rectangularis, 127
rectispira, 155
reflexa, 128
reticulata, 128
rivularis, 155
rugosa, 128
scrobiculata, 128
setiformis, 128
singularis, 128
spreeiana, 128
stictica, 121
subaequa, 155
submaxima, 128
tenuissima, 128
V. rugosa, 128
teodoresci, 129
ternata, 126
tetrapla, 129
triplicata, 129
varians, 129
V. minor, 129
V. scrobiculata, 128
velata, 129
V. occidentalis , 126
wabashensis, 129
weberi, 130
V. elongatum, 155
Spirulina, 25
gomontiana, 25
jenneri, 25
major, 25
nordstedtii, 25
Spondylosium, 141
planum, 141
pygmaeum, 141
Staurastrum, 141
alternans, 141
crenatum, 141
cuspidatum, 141
dilatatum, 141
gracile, 141
hexacerum, 142
margaritaceum, 142
oxyacanthum, 142
polymorphum, 142
punctulatum, 142
Staurogenia lauterbornei , 112
Stauroneis, 58
acuta, 58
anceps, 58
V. birostris, 58
V. linearis, 58
gracilis, 58
linearis, 58
phoenicentron, 58
V. amphilepta, 58
phyllodes, 58
producta, 58
Stephanodiscus, 40
astraea, 40
V. intermedia, 40
V. minutula, 40
hantzschii, 40
minutus, 40
niagarae, 40
V. magnifica, 40
Stichococcus, 75
bacillaris, 75
flaccidus, 76
subtilis, 76
Stigeoclonium, 80
glomeratum, 80
longipilum, 80
lubricum, 80
V. varians, 81
nanum, 81
stagnatile, 81
subsecundum, 81
tenue, 81
V. uniforme, 155
Stigonema, 29
minutum, 29
Stigonemataceae, 3, 29
Slriatella
fenestrata, 41
flocculosa, 41
Surirella, 67
angusta, 67
apiculata, 67
biseriata, 67
V. bifrons, 67
campylodiscus , 155
cardinalis, 68
didyma, 67
legans, 67
V. norvegica, 67
guatimalensis, 68
linearis, 68
V. constricta, 68
minuta, 68
norvegica, 67
176
A CATALOG OF ILLINOIS ALGAE
oregonica, 68
oval is, 68
V. minuta, 68
V. pinnata, 68
ovata, 68
patella, 68
robusta, 68
saxonica, 68
spiralis, 69
splendida, 69
Surirellaceae, 4, 66
Surirellineae, 4, 64
Symploca, 25
muscorum, 25
V. rivularis, 25
Syncrypta, 34
vol vox, 34
Syncryptaceae, 3, 34
Synechocystis, 18
aquatilis, 18
Synedra, 45
acus, 45
V. delicatissima, 45
V. radians, 45
biceps, 47
capitata, 46
cliaseii, 47
crotonensis , 44
V. proton gaia, 44
danica, 47
delicatissima, 45
dorsiventralis, 46
hyalina, 46
joursacensis, 47
lanceotata, 46
longissima, 47
obtusa, 47
parasitica, 46
pulchella, 46
radians, 45
rumpens, 46
simatongis, 155
spathulifera, 47
splendens, 46
tenera, 46
tenuissima, 45
ulna, 46
V. aequalis, 47
V. biceps, 47
V. danica, 47
V. spathulifera, 47
vitrea, 46
Synura, 35
uvella, 35
Synuraceae, 3, 35
Tabellaria, 41
fenestrata, 41
flocculosa, 41
Tabellariaceae, 4, 41
Tetraedron, 110
bifurcatum, 110
gigas, 110
gracile, 110
limneticum, 110
lobulatum, 110
minimum, 110
f. tetralobulatum, 110
muticum f. punctulatum, 110
quadratum f. minus acutum, 111
regulare, 111
trigonum. 111
f. majus, HI
V. minus. 111
V. tetragonum. 111
Tetrapedia emarginata, 112
gothica, 155
Tetraspora, 75
gelatinosa, 75
lubrica, 75
Tetrasporaceae, 4, 75
Tetrasporales, 4, 74
Thorea, 30
ramosissima, 30
Thoreaceae, 3, 30
Tolypothrix, 29
tenius, 29
Trachelomonas, 151
acuminata, 151
armata, 151
caudata, 151
ensifera, 151
hispida, 151
magdaleniana, 152
schauinslandii, 152
similis, 152
tambowika, 152
torta, 155
urceolata, 152
volvocina, 152
V. rugutosa, 155 *
Treubaria, 111
crassispina. 111
Tribonema, 32
bombycinum, 32
V. tenue, 33
minus, 33
utriculosum, 33
viride, 32
Tribonemataceae, 3, 32
Trochiscia, 111
INDEX
177
arguta, 111
reticularis, HI
Ulothrix, 76
tenerrima, 76
variabilis, 76
zonata, 76
Ulotrichaceae, 4, 75
Ulotrichales, 4, 75
Ulotrichineae, 4, 75
Ulvales, 4, 98
Uroglena radiata, 155
Vanheurckia
rhomboides, 51
Vaucheria, 118
aversa, 118
gardneri, 118
geminata, 118
V. depressa, 118
f. racemosa, 118
hamata, 118
longipes, 118
macrospora, 155
ornithocephala, 118
polysperma, 118
repens, 119
sessilis, 119
terrestris, 119
tuberosa, 117
Vaucheriaceae, 4, 117
Volvocaceae, 4, 69
Volvocales, 4, 69
Vol vox, 73
aureus, 73
globator, 73
spermatosphaera, 73
Xanthophyceae, 3, 30
Zoochlorella
conductrix, 106
parasitica, 107
Zygnema, 130
adpectinatum, 130
azureum, 130
catenatum, 130
collinsianum, 130
conspicuum, 130
cruciatum, 130
V. coeruleum, 130
cylindricum, 130
decussatum, 130
excrassum, 131
insigne, 131
leiospermum, 131
neocruciatum, 131
neopectinatum, 131
pectinatum, 131
V. anomalum, 131
V. conspicuum, 130
V. eras sum, 131
V. decussatum, 131
stellinum, 131
V. genuinum, 155
sterile, 132
subcruciatum, 132
subtile, 132
vaucherii, 132
Zygnemataceae, 4, 119
Zygnematales, 4, 119
Zygnemopsis, 132
decussata, 132
Zygogonium, 132
decussatum, 132
ericetorum, 132
NORTHWESTERN UNIVERSITY
The Graduate School
1944
From time to time, The Graduate School of Northwestern University
authorizes through the Editorial Board of Northwestern University
Studies the publication of monographs in various fields of learning. A
list of these publications appears below. Orders and inquiries are to be
addressed to The Graduate School, Northwestern University, Evanston,
Illinois.
Northwestern University Studies in
the Humanities
No. 1. Tales from the French Folk-
Lore of Missouri
by Joseph Medard Carri^re $4.00
No. 2. Kant's Pre-Crilical Ethics
by Paul Arthur Schilpp $2.50
No. 3. Luise Hensel als Dichterin
by Frank Spiecker
No. 4. The Labors of the Months in
Antique and Mediaeval
Art
by James Carson Webster $10.00
No. 5. Forgotten Danteiana
by J. G. Fucilla $1.00
No. 6. Speech Development of a
Bilingual Child
by Werner F. Leopold $2.25
No. 7. L'Histore de Gille de Chyn
edited by Edwin B. Place $2. 'SO
No. 8. The Aesthetic Process
by Bertram Morris $2.2 5
Northwestern University Studies in the
Social Sciences
No. 1. Predicting Criminality
by Ferris F. Laune $1.50
No. 2. Shamanism in Western North
America
by Willard Z. Park $2.25
No. 3. Seventy Years of Real Estate
Subdividing in the Region
of Chicago
by Helen Corbin Monchow $2.25
No. 4. The First Scientific Explora-
tion of Russian America
and the Purchase of
Alaska
by James Alton James $2.00
No. 5. Compulsory Health Insurance
in the United States
by Herbert D. Simpson $ .75
Northwestern University Studies in
Mathematics and the Physical Sci-
ences
No. 1. Mathematical Monographs
by D. R. Curtiss, H. T.
Davis, H. L. Garabe-
dian. H. S. Wall,
E. D. Hellinger $2.25
Northwestern University Studies in the
Biological Sciences and Medicine
No. 1. A Study in Neotropical
Pselaphidae
by Orlando Park $7.50
No. 2. A Catalog of Illinois Algae
by Max E. Britton
Not in series
Galileo, Two New Sciences
translated by Henry Crew and Al-
fonso de Salvio $2.50
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orders to The Graduate School, Northwestern University, Evanston, Illinois
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