BULLETIN 
TORREY BOTANICAL CLUB. 
Vol. XIII] New York, July, 1886. (No. 7. 
Check List of Marine Alge. 
Based on Specimens collected on the shores of Long Island, from 1839 to 1885. 
By NICOLAS PIKE. 
ORDER I.—CRYPTOPHYCEE. 
SUB-ORDER—NOSTOCHINE&. 
Spherozyga Carmichacli, Harv. Fort Hamilton, Green- 
port, on decayed alge ; summer. : 
Nodularia Harveyana, Thuret. Bay Ridge and Hell Gate; 
summer. 
Spirulina tenuissima, Kitz. Fort Hamilton pier, Fike- 
poles, Gravesend Bay ; summer. i 
Beggiatoa alba, Treves. Fort Hamilton, Jamaica Bay; 
summer. 
Oscillaria limosa, Kiitz, and 
O. subultformis, Harv. Jamaica Bay, Whitestone. 
Microcoleus chthonoplastes, Thuret. Fort Hamilton, Green- 
port; summer. 
Lyngbya majuscula, Harv. Canarsie, College Point ; summer. 
L. estuarti, Liebm. Fort Hamilton, Bay Ridge; summer. 
L. luteo-fusca, Ag. Coney Island Creek; summer. 
L. tenerrima, Thuret. Jamaica Bay, College Point ; summer. 
L. nigrescens, Harv. Canarsie, Bay Ridge; summer. 
Calothrix confervicola, Ag.,in fresh and salt water. Bay 
Ridge and Fort Hamilton; summer. = 
C. crustacea (Schousb.), Born. and Thuret. Bay Ridge and. = 
Fort Hamilton; summer. ae 
C. scopulorum, Ag. Greenport, Little Beg Harbor; 
summer. 
