FROM THE FALKLAND ISLANDS. 169 
Yendo maintains that the bladder-like fronds are quite distinct from the 
so-called fertile axis, and that they consist of young plants of Colpomenia 
sinuosa or an allied species. 
In view of Dr. Yendo's intimate knowledge of the life-histories both of 
Chordaria and Colpomenia in the North Pacific, I feel bound to accept this 
conclusion, and believe that Dr. Skottsberg must have been misled, as 
have been other observers in similar cases, by the intimate connection of 
host and epiphyte. Аз it has not been possible to identify the Chordaria, 
the alga is here left under the old name Серийит. (See notes under 
Colpomenia sinuosa.) 
MYRIONEMA MACROCARPUM, Skottsh. Subant. и. Ant. Meeresalgen, i. р. 49. 
Е. Falklands; Berkeley Sound, on Macrocystis and Lessonia, Skottsberg. 
DisTRIB. Falkland Islands. 
M. pENsUM, Skottsb. l. с. р. 50. 
E. Falklands ; Berkeley Sound, on Macrocystis and Lessonia, Skottsberg. 
Disrris. Falkland Islands. 
CHORDARIA CAPENSIS, Avitz. Tab. Phyc. viii. р. 5, tab. 11. 
W. Falklands ; West Point Island, Vallentin, Hennis. 
DisrRiB. Cape of Good Hope, Fuegia, Kerguelen. 
This species may be considered as rare in the islands, as it was not found 
by Skottsberg or any previous collector. The five specimens brought home 
by Mrs. Vallentin agree with the Cape species rather than with C. flagelli- 
formis, and it is probable that all the records of the latter from Fuegia refer 
to this species. 
C. LINEARIS, Cotton, comb. nov. (Pl. 5; Pl. 6. figs. 3 & 4.) Mesogloia 
linearis, Hook. f. et Harv. in Hook. Lond. Journ. Bot. iv. (1845) p. 251; 
Fl. Ant. ii. p. 470. 
W. Falklands ; West Point Island, Hennis. 
Distris. Fuegia, Falkland Islands. 
The plant described by Hooker & Harvey as Mesogloia linearis has 
remained little known. Several plants were collected by the * Erebus’ and 
‘Terror’ Expedition, but they were rather young and, as shown by comments 
on herbarium sheets, later algologists have doubted the validity of the 
species. 
The structure of the stem is not that of Mesogloia, but rather that of 
Chordaria, though the frond is less firm and the tissue less parenchymatous 
than in C. flagelliformis. In habit the plant strongly resembles Dictyosiphon 
fœniculaceus, but is much more robust, the main stem in the dried specimen 
being as much as 1:5 mm. in diameter in an old plant. 
LINN. JOURN.—BOTANY, VOL. XLIII. N 
