« «>i.u\- \\D ill i;\ \.\ 



Island, Feb., Fariow, crashed ashore; Castle Harbor, Gravelly I 

 April, Collins; Gravelly Bay, Dec., Hervey. Two large plants 

 collected in a narrow " chasm " in the rocky shore between Tucl 

 Town and Walsingham House, growing in company with Halyn 

 bermuderutSt l»ut while the latter grew plentifully at low water mark, 

 the Platoma began about 5 dm. below, and seemed to extend down. 

 Farlow's plants and our- from the cave at Gravelly Bay are -mailer 

 and of firmer substance; the Castle Harbor plants larger and lo 

 probably <m account of being more developed. 



Genus incertae sedis. 

 Porphyridium Nageli. 



P. cbuentum (Eng. Bot.) Nageli, 1849, pp. 71 & 139, PI. IV. H; 

 Tremelia amenta Eng., Hot.. 1807, 1*1. 1800. Roadside, Jan.. Fariow. 

 Forms a bright red film on the ground; is widely distributed and in 

 northern countries is common in hothouses. It has been place.) by 

 different author- among green, blue-green and red algae respectively, 

 hut the latest investigations incline to the last. See Brand. 1 

 p. 413. 





SUMMARY. 







CI 



Genera. 



Specie-, 

 marine. 



Sp- 

 ires h water. 



Myxophyceae 

 ( 'hloroph; i 

 Phaeophyceae 

 Rhodophyceae 



43 

 56 



24 

 62 



48 

 143 



40 

 28 



Total 



185 



342 



OS 



Total species 





410 



