PLANTS OF RHODE ISLAND. : 101 
11. fastigiata, Grev. Narragansett Bay, &c. No. 37. 
DASYA, Ag. 
elegans, Ag. Providence to Block Island. No. 38. 
CORALLINA, Lamx. 
officinalis, L. Newport, &c. No. 40. 
MEHLOBESIA, Aresch. 
pustulata, Lamx. Narragansett Pier, Prof. Harvey. No. 41. 
LITHOTHAMNION, Phil. 
polymorphum, (L.) Aresch. Watch Hill, Prof. Eaton. 
The following named species of Marine Alge mentioned by Dr. 
Farlow in his various works upon New England Alge, seem to 
deserve insertion here, as they probably occur in our district : 
Clathrocystis rosea-persicina, Cohn. ‘‘ Whole New England 
coast.”’ 
Isactis plana, Thuret. ‘* Whole New England coast.”’ 
Rhizoclonium riparium, Roth. ‘ Probably common all along 
the coast.”’ 
Rhizoclonium tortuosum, Kutz. ‘‘Common all along the 
New England coast.”’ 
Bryopsis plumosa, Lamx. ‘ Not uncommon all along our east- 
arn coast.”’ 
Desmarestia viridis, Lamx. ‘* Common on stones.”’ 
Sphacelari&: cirrhosa, Roth. ** Common on Fucus.”’ 
Myrionema vulgare, Thur. “* Everywhere common.”’ 
Asperococcus echinatus, Grev. ‘‘Common along the whole 
coast.”’ 
Porphyra leucosticta. ‘‘ Probably occurs in New England.” 
Ceramium strictum, (Kutz.) Harv. ‘‘ From New York to Cape 
Cod.’ 
Rhabdonia tenera, Ag. ‘‘ Common from Cape Cod southward.” 
Gelidium crinale, J. Ag. ‘‘ Common in all seas.”’ 
Polysiphonia urceolata, Grev. “« New Jersey northward.” 
Melobesia farinosa, Lamx. ‘ Probably occurs throughout our 
limits.”’ 
