PLANKTON ALG 
OF LAKE ERIE. 
List of plants determined in Lake Erie. 
CONFERVOIDEE. 
Coleochcete scutata Bréb.* 
(Edogonium eryptoporum Wittr.* 
Prasiola sp. 
Stigeoclonium tenue Kg. 
Cheetophora endivicefolia LARS 
Aphanochete repens A. Br. 
Cladophora glomerata Kg. 
var. subsimplex Rabh. 
Hormidium nitens Menegh. 
flaccidum (Kg.) Braun. 
Bumilleria sp. 
SIPHOPHYCE® 
Protosiphon botryoides (Kg.) Klebs. 
PROTOCOCCOIDE. 
Volvox globator Ehrb. 
Eudorina elegans Ehrb. 
Pandorina morum Bory. 
Synura volvox Ehrb.* i 
Gonium tetras A. Br.* 
pectorale Miller.* 
Chlamydomonas conmunis Snow. 
gracilis Snow. 
globosa Snow. 
Hydrodictyon utriculatum Roth. 
Scenedesmus acutiformis Schréde-. 
acutus Meyen. 
alternans Reinsch. 
bijugatus Kitz. 
var. flexwosus Lemn. 
brasiliensis Bohlin. 
caudatus Corda. 
var. abundans Kirch. 
var. setosus Kirch. 
dimorphus Kg. 
obliquus (Turpin) Ktz. 
opoliensis Richter. 
var. carinatus Lemn. 
quadricaudatus (Turp.) Bréb. 
var. ecornis Ehrb. 
Celastrum microporum Nag. 
proboscideum Bohlin. 
reticulatum (Dang.) Senn. 
sphericum Nag. 

| Dictyospherium ehrenbergianum Nig. 

| Kirchner iella obesa (West) Schmidle. 
var. contorta Schmidle. 
Golenkinia fenestrata Schréd._ 
| Citeraleneit parvulum A. Br.* 
captitatum Wolle. 
Characium ambiguum Herm. 
cangustum A. Br.* 
| Polyedri tum cruentum Nag. 
enorme D. By.* 
gigas Wittr.** 
lobulatum Nag. 
minimum A. Br.* 
muticum A. Br.* 
ptnacidiuwm Reinsch. 
trigonum Nag.* 
var. tetragonwm Rabh. 
pulchellum Wood. 
Hormospora sp. 
Tetraspora natans Kitz. 
Schizochlamys gelatinosus A. Br. 
Fusola viridis n. sp.*** 
Dimorphococcus lunatus A. Br.*** 
Porphyridium cruentum Nig.* 
Botryococcus braunii Kg. 
Gleecystis ampla Rabh. 
Nephrocytium agardhianumn Nig. 
Oocystis borgei Snow. 
lacustris Chodat. 
solitaria Witty. 
Chodatella citriformis Snow. 
Rhaphidium biplex Reinsch. 
braunti Nag. 
convolutum Rabh.* 
faleula A. Br. 
minutum Nag. 
polymorphum Fres. 
Rhaphidium (2) spirale Turner. 
Selenastrum acuminatum Lagerh. 
bibraianum Reinsch. 
gracile Reinsch. 
Dactylococcus infusionum Nig. 
Stichococcus bacillaris Nig. 
Pleurococcus aquaticus Snow. 
regularis Artari. 
Chlorella infusionum Beyerinck. 
vulgaris Beyerinck. 
NotTEe.—A specimen was found agreeing 1n every re- 
spect with Celastrum cubicum Nig., which produced 
typical ccenobia of Celastrum probose ideum, so that the 
svecies of Celastrum cubicum is to be questioned. 
Chlorococcum infusionum Rabh. 
natans Snow. 
Sorastrum spinulosum Kg.* 
Pediastrum boryanum Menegh. 
var. longicorne Reinsch. 
constrictum Hass.** 
ehrenbergii A. Br.* 
pertusum Kitz. 
var. brachylobum A. Br. 
var. clathratum A. Br. 
var. microporum A. Br. 
rotula Ehrb.* 
sturmii Reinsch. 
Staurogenia apiculata Lemn. 
quadrata (Morren) Kitz. 
rectangularis Nag. 
Kirchneriella lunaris (Kirch.) Mob. 
var, diane Bohlin. 
| Botrydiopsis eriensis Snow. 
Chlorosphera lacustris Snow. 
parvula Snow. 
Scotinosphera paradoxa Klebs. 

CONJUGATE, 
| Mesocarpus sp. 
Hyalotheca dissiliens Bréb. 
Onychonema leeve Nordst. 
var. minus. 
| Spheerozosma filiforme Rabh. 
Closterium acerosum Ehrb. 
diance Ehrb. 
ehrenbergti Meneg. 
leibleinii Kg. 
lineatum Ehr.** 
B91 
