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218 Gi alifornia Marine Alge. [ZOE 
CALOTHRIX CONFERVICOLA Ag. c. 
C. crusTACEA Bond & Thuret. c. On rocks, wharves and other 
algz., 
RIVULARIA ATRA Roth. c. On stones, algae, and other material. 
LYNGBYA MAJUSCULA Harv. s. On Zostera and probably other 
plants. 
The Cyanophycez are not, strictly speaking, blue; but rather a_ 
dark green, or bluish green. They however contain a coloring 
matter that under certain conditions becomes blue. The number 
that grow in marine water are few comparativ ely, yet a close eX- 
amination would doubtless add many to our list. 
Class Il. CHLOROPHYCE. (Green Algze.) 
Order SIPHONEE. 
BRYOPSIS PLUMOSA Lmx. c. In clusters on rocks at low tide. 
CODIUM ADHARENS Ag. m. 
C. TOMENTOSUM Stack. c. “ Miru.’’ 
Order CONFERVACE/. ULVACEZ:. 
MONOSTROMA QUARTERNARIUM Desm. m. About estuaries. 
ULVA CLATHRATA Ag. c. On rocks. 
U. compREsSA Le Jolis. c. On rocks. 
U. ENTEROMORPHA Le Jolis. c. Estuaries. 
U. INTESTINALIS Le Jolis. c. Estuaries. 
U. FASCIATA Delile? c. 
U. Lactuca LL. c. Estuaries. 
U. LatisstmaA L. c. ‘Sea Lettuce.’’. On rocks and other algze. 
U. Linza Grev. c. With datissima. oe 
The genera Ulva and Enteromorpha have been united by Le 
Jolis. There seems to be a somewhat perplexing mixture of 
species and varieties. Perhaps it would be as well to treat each 
of the above as species and thus avoid confusion, notwithstanding 
the existence of many intermediate forms. 
ULoTHRIX FLACCA? Thuret. c. On wood and soft rocks at ‘iow 
tide. 
CHATOMORPHA &REA Dillw. m. n. 
C. CLAVATA var. ToRTA Farl.  s. 
