

XLGM 



111 



twenty species and varieties have been added to the British Flora : — 



Chlorochytrium dermatocolax, Protoderma marinum, Ulvella lens, Mono- 

 stroma fuscum, Acrochate repens, Chcetomorpha linum f. pulvinata, 

 Ostreobium Queketti, Streblonema sphcericum, Leptonenm fasciculatum, 

 Ascocyclns fcecundus, A. fcecundus f. seriata, A. balticus, Balfsia pusilla, 

 Chorda tomentosa f. subjulva, Ascophyllum Mackaii f. Bobertsoni, Ery- 

 throtrichia carnea f. investiens, Conchocelis rosea, Wildemania miniata 

 f. tenuissima, Antithamniim boreale, Lithothamnion corallioides, L. 



colliculosum. Of these, five belong to genera which were not pre- 

 viously represented in the British list, and one — Conchocelis rosea — is 

 the type of a genus new to science. In addition to those already 

 mentioned, fifty-seven species previously known to occur in Britain, 

 but not recorded from the Clyde sea-area, have been added to the 

 flora of the district, and many additional localities for species, which 

 are incorporated in the following list, have been ascertained. I 

 trust, therefore, that a sound foundation has been laid for any 

 subsequent investigations. 



Cyanophyce^e. 



Dermocarpa prasina Born. Epiphytic on Gelidium crinah and 

 Rhodochorton Rothii. Karnes Bay, Cunibrae ; and Kilchattan Bay, 

 Bute. 



D. violacea Crn. Epiphytic on Fuciis vesiculosus. Gare Loch, 



F. G. Pearcey. 



D. Schoitsbcei Born. Epiphytic on Rhodochorton Rothii, Karnes 

 Bay, Cumbrae, D. Robertson. 



Hyella ccespitosa Bornet & Flah. Cumbrae and Bute. Between 

 Saltcoats and Fairlie, E. M. Holmes. 



Gonimotrichum elegans Le Jol. Farland Point, Cumbrae. 



Phormidium papyraceum Goni. Fintry Bay, Cumbrae. 



Hydrocoleum lyngbyaceum Kiitz. f. rupestris Kiitz. Fintry and 

 Karnes Bays, Cumbrae. 



Mastigocoleus testarum Lagerh. Fintry Bay, Cumbrae. Lam- 

 lash Bay, Arran. Between Saltcoats and Fairlie, Holmes. 



Merismopadia glauca Nag. Karnes Bay, Cumbrae. 



Chlorophyce^;. 



Chlorochytrium inclusum Kjellm. Endophytic in Dilsea edulis. 



Cumbrae. 



*C. dermatocolax Bke. Endophytic in the frond of Polyides ro- 

 tundus. Cumbrae, Boodle. Gare Loch. 



Prasiola stipitata Suhr. Cumbrae and Bow, Gare Loch. Loch 



Goil, Pearcey. 



* Protoderma marinum Eke. Bell Bay, Cumbrae. 



* Ulvella lens Crn. Karnes Bay, and Little Cumbrae. 

 Pringsheimia scutata Bke. Ardrossan, King. 



*Monostro ma fuscum Wittr. Fintry Bay, Cumbrae. 



M. Blyttii Wittr. Karnes Bay, Cumbrae. 



Capsosiphon aureoleus Gobi. Karnes, Bell and Fintry Bays, 

 Cumbrae. Seamill, Holmes. 



Percursaria confervoides Foslie = Diplonema confervoides Eke, 

 Karnes Bay, Cumbrae. 



