384 
Bryopsis plumosa Lam. 
Enteromorpha intestinalis Linb. 
> Hopkirkii M’Calla. 
> compressa Grev 
> clathrata RL 
Ulva latissima L. 
Cindophor arcta Dillw. 
lanosa Roth. 
> BETR Griff. 
> flexuosa Griff. 
Rhodomela subfusca Ag. 
Polysiphonia formosa Harv. 
subtilissima Mont. 
> Harveyi Bailey. 
> elongata Grev 
> violacea Grey. 
> variegata Ag. 
> nigrescens Grev. 
> fhnis Harv 
> iata Gr. 
Dasya elegans Ag. 
Corallina effetieke L. 
Grinellia americana Harv. 
Rhodymenia palmata Grev. 
Phyllophora Brodiaei Ag. 
Grifhithsia corallina Ag. 
zn vulgare Ag. 
Montagnei Bailey. 
Focas (Ascophyllum) nodosus L. 
> vesiculosus L. 
Desmarestia viridis 
Laminaria saccharina Ya 
> on Lam. 
> fascia 
> longieruris s Pylaie, 
Dietyosiphon foeniculaceus Grev. 
Pelagie Benthos Formation. "The plankton vegetation off the New England 
coast has not been studied, but some investigation has been made of the bac- 
terial flora'). Ouantitativeh the marine mud in the vicinity of Woods Hole 
contains much less germ life than that of the Mediterranean in the vicinity of 
Naples. The Naples cultures made from mud taken at the depth of 150 feet 
ı) Russeit, H.L.: The bacterial Flora of the Atlantic Ocean in the Vieinity of Woods Hole, 
Part IV. Chapter 2. 
Chlorophyceae. 
Rhodophyceae. 
rn albida Huds. 
racilis Griff. 
» fracta Fl. Dan 
ee melagonium Web. 
rea Dillw. 
Ohuayi Harv. 
Hormotrichum Younganum Dillw. 
. Calothrix confervicola Ag. 
scopulorum Ag. 
Callithamnion Baileyi Harv. 
> ri 
> byssoideum Arn 
> corymbosum Ag 
> seirospermum Griff. 
> plumula Lyngb 
> americanum Harv. 
> Turneri Ag, 
< Daviesii Ag 
Champia parvula 
Ahnfeltia plicata Fries. 
Cystoclonium purpurascens Kg. 
Chondrus crispus L 
Ceramium rubrum Ag. 
» diaphanum Roth. 
> fastigiatum Harv. 
» arachnoideum Ag. 
Phaeophyceae. 
Punctaria tenuissima Grev. 
Asperococcus echinatus Grer, 
eh flagelliformis Ag. 
» divaricata Ag. 
regen hesia DODERROLIBER Gray. 
ies, 
Ectocarpus littoralis Lyngb. 
> siliculosus Lyngb. 
Mass. Botanical Gazette 1893 XVIII: 383, 411, 439. 
& Mohr. 
