THE ALG# OF THE CLYDE SEA AREA. 218 
S. tenuissima Kiitz. Common,” M. 
Note.—Throughout this catalogue, M. = Mr. J. A. Mahoney’s 
List of the Marine Alge of Clydesdale in Notes on the Flora and 
Fauna of the West of Scotland (Blackie & Son, 1876). D.R. = Mrs. 
David Robertson’s Herbarium. The other contractions are in such 
universal use that they need no explanation. 
Oscrniaria Bory. 
O. subuliformis Thw. «Frequent, Largs,” M. 
O. insignis Thw. “Frequent, Cumbrae,” M. 
O. Coralline Gom. = 0. litoralis Phyc. Brit. « Common,” M. 
Lynesya Ag, 
*L. @stuarii Lieb. In Mrs. Robertson’s collection there is a 
species, labelled in Dr, Landsborough’s writing, ‘“ Calothriz, new 
Species, 10.58. Cumbrae.” 
- majuscula Harv. Cumbrae, M. In Mrs. Robertson’s col- 
lection there are several specimens of this species gathered at Loc 
Ryan, just beyond the limits of the Firth of Clyde, but none 
actually from the Firth. 
*SYMPLOOA * 
*S. fasciculata Kiitz. There is a specimen of this species labelled 
** Calothrix pannosa. Cumbrae, 10.53” in Mr tson’ arium. 
= lata or S. hydnoides Kiitz., but on measuring the breadth 
of the filaments, which was 9-10 #; all my doubts were removed. 
Tribe Vacinarinx. 
Microcotevs Desm. 
M. chithonoplastes Thur. Cumbrae! Largs! Herb. Cutler in 
Brit. Mus. -* Ayrshire, Dr. Dickie,” Johnstone & Croall, iv. p. 181. 
Hunterston Point! Herb. Grey. é 
Section Hererocystex. 
Order RryunaRiacezx. 
Tribe Masricuorricuex. 
C. scopulorun C. Ag. Cumbrae! D.R. « Holy Isle,” M. 
C. pulvinata C. Ag. = C. hydnoides et C, pannosa Phyc. Brit. 
Tay “ 
Cumbrae ! R. ‘ Common,” M. 
C. fasciculata C. Ag.‘ Cumbrae,” M. 
Rrvvzaria Roth 
oth. 
R. Biasolettiana Mengh. = Schizosiphon Warrenia Phye. Brit, 
R. atra Roth. ** Corriegills,” M. 
R. nitida C. Ag. = R. plicata Phyc. Brit, Arran! 
Fs Calothriz luteola of Phyce Brit. is 2 species of Leptom oy : anak: 
