Nov. 1908.] BOTANICAL SOCIETY OF EDINBURGH Lig 
RHODOMELACE:. 
Lawrencia tuberculosa, J. Ag —Along with Gymnogon- 
grus tenuis found growing upon stones upon the sea 
beach, Dominica, B.W.LI. 
CERAMIACEA. 
Ceramium clavulatum, C. Ag. (Centroceras clavulatwm, 
Mont.)—Found growing upon rolled stones upon the sea- 
shore, Dominica, B.W.I. In Mr. George Murray’s list in 
“ Journal of Botany,” at page 196, it is mentioned under the 
name Centroceras clavulatum, Ag., but De Toni, in the 
“Sylloge Algarum,” regards Centroceras as a subgeneric 
group only. 
The stations mentioned for this plant are :—Grenada, 
Murray; Guadeloupe, Mazé; St. Thomas, A. R. Young; 
Cuba, Hb. Montague; Florida, Harvey, Melvill; Bermuda, 
Rein, “ Challenger.” 
Note.—It is widely distributed in all the warmer seas, including the 
Mediterranean.—E. M. H. 
GRATELOUPIACE. 
Grateloupia Cutlerie, Kiitz—Found growing upon rolled 
stones upon the sea beach, Dominica, B.W.I.; Guadeloupe, 
Mazé. 
Geographical distribution.—Chili, Peru. 
Gratelowpia filicina, C. Ag—Grenada, Murray ; Guade- 
loupe, Mazé; St. Thomas, A. R. Young; Florida, Harvey. 
Note.—Widely distributed in the warmer parts of the Atlantic and 
Pacific Oceans, and, like many of the species of the genus, variable in 
size and amount of division of the frond.—E. M. H. 
Grateloupia filicina, C. Ag., var. filiformis, De Toni.— 
Found growing upon rocks upon the sea beach, covered at 
about half tide. Guadeloupe, Mazé; Hohenack (Meeresal- 
gen, No. 380). 
Gratelowpia prolongata, J. Ag.—Found growing upon 
low rocks upon the sea beach, covered about half tide. 
Very near G. filiformis, but not distichous ; proliferze from 
the surface of the frond; Guadeloupe, Mazé. 
