186 MR. A. D. COTTON ON CRYPTOGAMS 
the speciments both at Kew and the British Museum being quite distinct and 
approaching rather 5. dichotoma. 
PrILONIA MAGELLANICA, J. Ag. Sp. i. p. TH. Plocamium? magel- 
lanicum, Hook. f. et Harv. in Lond. Journ, Bot. iv. (1845) p. 257; Fl. Ant. 
ii. р. 414. 
Falklands ; general, many collectors. 
Disrris. Fuegia, Falkland Islands, Kerguelen. 
The fronds of this plant are apt to be mistaken for a broad form of Plo- 
eamium. It is very frequent in the Cape Horn region and in the Falklands, 
but elsewhere has only been found at Kerguelen, 
CHONDRIA sp. Laurencia pinnatifida, var. angustata, Hook. f. её Harv. in 
Fl. Ant. ii. p. 484. 
E. Falklands; Berkeley Sound, Cape Pembroke, Hooker. W. Falklands : 
Roy Cove, West Point Island, Vallentin. 
Disrris. S. Chile, Falkland Islands. 
Although the genus has never been recorded from the Magellan region, 
a species of Chondria certainly occurs in the Falklands. Mrs. Vallentin 
brought home several specimens, and the Kew collections show that Hooker 
collected the same plant in 1842, and referred it in * Flora Antarctica’ to 
Laurencia pinnatifida, var. angustata. This species has since been recorded 
by other authors, and it continues to find a place in antarctic lists. All the 
specimens Г have seen, however, should be referred to Chondria, and it is 
very doubtful if Laurencia occurs at all in that region. 
Species of the present genus possess few distinctive characters, and are, 
especially in the dried state, difficult to classify. The Falkland Island plant 
is ceespitose, and approaches C. atropurpurea, Harv., from the North Pacific, 
in habit, but, until its range of variation and its reproductive organs are 
more perfectly known, it is impossible to decide on its specific identity. 
LorHURELLA comosa, Falk. Rhodomelaceen, р. 158, t. 19. Во. 31. Rhodo- 
mela comosa, Hook. #. & Harv. in Lond. Journ. Bot. iv. (1845) p. 263; FI. 
Ant. ii. p. 482, tab. 185. 
E. Falklands; Berkeley Sound, St. Salvador Вау, Hooker. W. Falk- 
lands; Shallow Bay, Vallentin ; West Point Island, Hennis. 
Distrip. Falkland Islands. 
The dense fibrillose shoots, which give it somewhat the appearance of 
Polysiphonia sibrillosa, distinguish this from allied species of the genus. 
L. HookERIANA, Falk. Rhodomelaceen, p. 158. Rhodomela Hookeriana, 
J. Ag. Sp. 1. р. 880. Lophura tenuis, Kütz. Diagn. u. Bemerk. по. 68, 
