280 THE ALG OF THE CLYDE SEA AREA, 
gk but all of them appear to me to belong to C. polyspermum, 
not to C. Hookeri. Saige Herb. Landsb. Portincross, 
Coevicuills. Herb. Glasg. Uni 
*C. Brodiai Harv. Arran, "Lage. Not in Mahoney’s List. 
*C. arbuscula a Lyngb. Arran, Landsb. Not in Mahoney’s List. 
In Mrs. Robertson’s Herbarium there are some specimens of this 
species from Loch Ryan, just + Wiseaa the limits of the Firth of 
lyde. 
C. tetragonum Ag. Cumbrae! D.R. Arran, Landsb. Brit. Seaw. 
*C, ‘tetragonum f. brachiata J. Ag. Macrehanish Bay! Herb. 
Landsb. 
y. Pacmornamntion. 
C. corymbosum Lyngb. Girvan! D.R. Cumbrae! D.R. Largs, 
M. Arran, Landsb. paltioata Herb, Landsb. Gourock, Herb. 
Glasg. Univ. 
*C. granulatum Ag. Ardrossan, Herb. Cutler. uiuan, Herb. 
Brit. Mus. Cumbrae, R. H. in Herb. G Glasg. Uni 
C. byssoides J. Ag. Lamlash, Arran! D. R. 
*Srmospora Harv 
S. Griffithsiana : Ha. Arran, Landsb. Brit. Seaw. p. 187. Not 
mentioned by Mahoney. 
Tribe CompsorHamniea. 
MPSOTHAMNION Schmitz. 
"*C. gracillimum Schmitz. = Callithamnion gracillimum ra Brit. 
Dredged in Lamlash Bay, Arran, Landsbor rough, “ Arran,” p. 190. 
Tribe Primorez. 
Prumaria Schmitz. 
P. elegans Schmitz. = Ptilota sericea Phyc. Brit. Cumbrae! 
D. R. Kildonan! T. King. ag and pe ae Herb. Brit. 
Mus. Corriegills, Herb. Glasg. Uni 
P, siinsci Ag. Cumbrae! Campbletown! D.R. Kildonan! 
r Saltcoats, Stevenston, _ostnerere Gourock, Herb. Brit 
Mus. Portincross, Herb. Glasg. Uni 
Tribe Crovanten. 
AytitHamntion Niig 
inet B — Thur. = = Callithamnion plumula Phye. Brit. Cum- 
more slender, and ae ot of a 
than in a A, erica es esa are also several w 
osa Hary., a species tae 
, from Loch Ryan. 
