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Full text of "A catalog of Illinois algae"

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. 



vm 



■mt ''' 






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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- 
tion. Ibid. 8: 3-361. pis. 1-5. 
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, 

Teil 2. pp. 1-117. pis. 97-142. 
*Leighton, M. O. 1907. Pollution of the Illinois and Mississippi Rivers by 

Chicago sewage. U. S. Geol. Surv. Water Supply Paper 194, pp. 3-369. 
Lemmermann, E., Brunnthaler, Jos., and Pascher, A. 1915, Tetraspor- 

ales, Protococcales. In A. Pascher, Die Susswasserflora Deutschlands, 

Osterreich und der Schweiz. Heft 5. Chlorophyceae 2, pp. 1-250. 402 

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- 

atomaceae and their synonyms. Vols. 1-3, pp. 1-1726. London. 
*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- 



160 A CATALOG OF ILLINOIS ALGAE 

phyceae L In A. Pascher, Die Susswasserflora Deutschlands, Osterreich 

und der Schweiz. Heft 4: 1-506. figs. 1-451. 
, and Lemmermann, E. 1913. Chrysomonadinae, Cryptomonad- 

inae, Eugleninae, Chloromonadinae. Ibid. Heft 2. Flagellatae 2. pp. 1- 

192. figs. 1-398. 
, Schiller, J., and Migula, W. 1925. Heterokontae, Phaeophyta, 

Rhodophyta, Charophyta. Ibid. Heft 11: 1-250. figs. 1-208. 
-, and Vischer, W. 1939. Heterokonten. In Rabenhorst's Krypto- 



gamen-Flora von Deutschland, Osterreich und der Schweiz. Band 11 : 1- 

1092. figs. 1-912. 
Prescott, G. W. 1927. The motile algae of Iowa. Univ. of Iowa Stud. 12: 

1-40. pis. 1-10. 

. 1931. Iowa algae. Ibid. 13: 1-235. pis. 1-39. 

. 1935. Notes on the desmid flora of New England, II. RhodoraJZ; 

113-121. pis. 329-330. 

1936. Notes on alpine and subalpine desmids from western 



United States. Pap. Mich. Acad. Sci., Arts and Letters 21: 135-146. pis. 

15-17. 
Printz, H. 1927. Chlorophyceae. In A. Engler and K. Prantl, Die Natur- 

lichen Pflanzenfamilien. Band 3: 1-463. figs. 1-366. Leipzig. 
*Purdy, W. C. 1922. A study of the pollution and natural purification of 

the Ohio River. I: The plankton and related organisms. U. S. Pub. 

Health Serv. Bull. 131, pp. 1-77. (1923). 
* . 1930. A study of the pollution and natural purification of the 

Illinois River. II: The plankton and related organisms. Ibid. 198, pp. 

1-212. 
Rabenhorst, L. 1864-68. Flora Europaea Algarum. Lipsiae. 
*Richardson, R. E. 1921. The small bottom and shore fauna of the middle 

and lower Illinois River and its connecting lakes, Chillicothe to Grafton: 

its valuation; its sources of food supply; and its relation to the fishery. 

Bull. 111. State Lab. Nat. Hist. 13: 363-522. 
* . 1930. Notes on the simulation of natural aquatic conditions in 

fresh water by the use of small non-circulating balanced aquaria. Ecol- 
ogy 11: 102-109. 
Schiller, Jos. 1933. Dinoflagellatae (Peridineae). In Rabenhorst's Kryp- 

togamen-Flora von Deutschland, Osterreich und der Schweiz. Band 10, 

Abteil. 3, Teil 1. pp. 1-617. figs. 1-631. 
. 1937. Dinoflagellatae (Peridineae). Ibid. Band 10, Abteil. 3, Teil. 

2. pp. 1-589. figs. 1-612. 
Schilling, A. C. 1913. Dinoflagellatae (Peridineae). In A. Pascher, Die 

Susswasserflora Deutschlands, Osterreich und der Schweiz. Heft 3: 1-66. 

figs. 1-69. 
Skuja, H. 1930. Suesswasseralgen von den westestnischen Inseln Saare- 

maa und Hiiumaa. Acta Horti Botanici, Univ. Latv. 4: 1-76. pis. 1-3. 
*Skvortzow, B. V. 1937. Diatoms from Lake Michigan — I. Amer. Midi. 

Nat. 18: 652-658. pi. 1. figs. 1-32. 
Smith, G. M. 1916. A monograph of the algal genus Scenedesmus based 

upon pure culture studies. Trans. Wis. Acad. Sci. 18: 422-530. pis. 25- 

33. 



BIBLIOGRAPHY 161 

— . 1920. Phytoplankton of the inland lakes of Wisconsin, I. Bull. 

Wis. Geol. and Nat. Hist. Surv. 57 (Sci. Sen 12): 1-243. pis. 1-51. 
— . 1924. Phytoplankton of the inland lakes of Wisconsin, II. Ihid. 

57: 1-227. pis. 52-88. 
. 1933. The freshwater algae of the United States, pp. 1-716. figs. 

1-449. McGraw-Hill, Inc., New York. 

1938. Cryptogamic botany. I, Algae and Fungi, pp. 1-545. figs. 



1-299. McGraw-Hill, Inc., New York. 
*Smith, H. L. 1878. Description of new species of Diatoms. Amer. Quart. 

Micr. Jour. /.• 12-18. pi. 3. 
Smith W. 1853. A synopsis of the British Diatomaceae. pp. v-xxxiii; 1- 

89. pis. 1-31. London. 
. 1856. A synopsis of the British Diatomaceae. pp. vii-xxix; 1-107. 

pis. 32-67. London. 
*Solheim, W. G., and Penfound, W. T. 1928. A study of the algae of a 

freshwater stream. Trans. 111. State Acad. Sci. 20: 85-91. 
*Stimson, W. 1870. On the deep-water fauna of Lake Michigan. Amer. 

Nat. 4: 403-404. 
Strickland, J. C. 1940. The Oscillatoriaceae of Virginia. Amer. Jour. Bot. 

27: 629-633. figs. 1. 
Taft, C. E. 1931. Desmids of Oklahoma. Univ. of Okla. Surv. 3: 274- 

322. pis. 1-5. 
. 1934. Desmids of Oklahoma, II. Trans. Amer. Micr. Soc. 53: 95- 

101. pi. 6. 

1937. Desmids of Oklahoma, III. Ibid. 56: 397-404. pis. 1-2. 



Taylor, Wm. R. 1934. The fresh-water algae of Newfoundland, I. Pap. 

Mich. Acad. Sci., Arts and Letters 19: 217-278. pis. 45-57. 
. 1935. Alpine algae from the Santa Marta Mountains, Colombia. 

Amer. Jour. Bot. 22: 763-781. pis. 1-3. Text. figs. 1-6. 

1935. The freshwater algae of Newfoundland, II. Pap. Mich. 



Acad. Sci., Arts and Letters 20: 185-230. pis. 33-49. 
♦Thomas, H. D., and Chase, H. H. 1887. Diatomaceae of Lake Michigan 

during the last sixteen years from the water supply of Chicago. Notar- 

isia 2: 328-330. 
*TifiFany, L. H. 1927. New species and varieties of Chlorophyceae. Bot. 

Gaz. 83: 202-206. pi. 9. figs. 1-12. 
* . 1928. The algal genus Bulbochaete. Trans. Amer. Micr. Soc. 47: 

121-177. pis. 14-23. fags. 1-99. 

1930. The Oedogoniaceae; a monograph including all the known 



species of the genera Bulbochaete, Oedocladium, and Oedogonium. pp. 

1-188. pis. 1-64. Columbus, O. 
— . 1934. The plankton algae of the west end of Lake Erie. Contrib. 

Franz T. Stone Lab. 6: 1-112. pis. 1-15. f^gs. 1-374. 
— . 1937. The filamentous algae of the west end of Lake Erie. Amer. 

Midi. Nat. 18: 911-951. pis. 1-9. figs. 1-144. 
. 1937. Oedogoniales. N. Amer. Fl. 11{\): 1-102. pis. 1-36. figs. 

1-559. 

1939. The Oedogoniales of Illinois. Trans. 111. State Acad. Sci. 



32: 90. 



162 A CATALOG OF ILLINOIS ALGAE 

*Tilden, J. 1910. Minnesota algae, I : the Myxophyceae of North America 
and adjacent regions including Central America, Greenland, Bermuda, 
the West Indies and Hawaii, pp. 1-319. pis. 1-20. Minneapolis, Minn. 

*Transeau, E. N. 1912. The occurrence of the rare alga, Gloeotaenium, in 
Illinois. Trans. 111. State Acad. Sci. 4: 143. 

* . 1913A. The life-history of Gloeotaenium. Bot. Gaz. 55: 66-73. 

pi. 3. figs. 1-24. 

* . 1913B. Annotated list of the algae of eastern Illinois. Trans. 111. 

State Acad. Sci. 6: 69-89. 

* . 1913C. The periodicity of algae in Illinois. Trans. Amer. Micr. 



Soc. 32: 31-40. figs. 1-8. 
. 1914. New species of green algae. Amer. Jour. Bot. 1: 289-301. 

pis. 25-29. 

. 1915. Notes on the Zygnemales. Ohio Jour. Sci. 16: 17-31. 

. 1916. The periodicity of freshwater algae. Amer. Jour. Bot. 3: 



121-133. figs. 1-3. 
— . 1917. The algae of Michigan. Ohio Jour. Sci. 17: 217-236. 

. 1925. The genus Debarya. 7&t(/. 25.- 193-201. pis. 1-2. figs. 1-44. 

. 1926. The genus Mougeotia. Ibid. 26: 311-331. pis. 1-7. 

— . 1933. The genus Zygogonium. Ibid. 33: 156-162. pis. 1-2. figs. 

1-37. 

. 1934. Notes on Zygnemataceae. Ibid. 34: 420. 

— . 1934. Key to the species of Zygnematales. MSS. 

. 1938. Notes on Zygnemataceae. Amer. Jour. Bot. 25: 524-528. 

figs. 1-19. 
, and Tififany, L. H. 1919. New Oedogoniaceae. Ohio Jour. Sci. 

19: 240-243. pi. 14. figs. a-i. 

et al. 1934. New species of Zygnemataceae. Trans. Amer. Micr. 



Soc. 53: 208-230. pis. 17-22. figs. 1-69. 
Walton, L. B. 1915. A review of the described species of the order 

Euglenoidina Bloch. Class Flagellata (Protozoa) with particular refer- 
ence to those found in the city water supplies and in other localities of 

Ohio. Ohio Biol. Surv. 19: 343-459. pis. 12-26. 
♦Welch, W. B. 1942. A study of the phytoplankton of Crab Orchard 

Lake. Trans. 111. State Acad. Sci. 35: 81-82. figs. 1-4. 
* Wesley, O. C. 1928. Asexual reproduction in Coleochaete. Bot. Gaz. 86: 

1-30. pis. 1-2. figs. 1-75. 
West, G. S. and Fritsch, F. E. 1927. A treatise of the British freshwater 

algae, pp. 1-534. figs. 1-207. Cambridge. 
West, W., and West, G. S. 1904-1912. A monograph of the British Des- 

midiaceae. Vols. I-IV. Ray Society, London. 
, , and Carter, N. 1923. A monograph of the British Des- 

midiaceae. Vol. V. Ray Society, London. 
nVilliams, E., et al. 1931. Increase of sugar utilization in Spirogyra by 

means of commercial fertilizers. Bot. Gaz. 92: 321-325. 
Wolle, F. A. 1887. Freshwater algae of the United States. 1: 5-364; 2: 

pis. 54-211. Bethlehem, Pa. 
. 1892. Desmids of the United States and list of American Pedi- 

astrums. pp. 5-182. pis. 1-64. Bethlehem, Pa. 



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 



Prices include postage 



1