246 MR. R. N. RUDMOSE BROWN ON 
p. S0. P. vespertilionis fl, R. Br. ex Carmich. in Trans. 
Linn. Soc. Lond. xu. (1818) p. 518. 
Growing in dryer places than the preceding plant; not very 
common. 
The Tristan da Cunha specimens of this widely-spread species 
differ from others in the fact that the veins of the fronds do not 
anastomose at all (vide Hook. & Baker, Syn. Fil. p. 172). The 
Gough Island plants belong to the same variety. 
Distribution. Tristan da Cunha, Nightingale and Inaccessible 
Islands. Also tropical and temperate South America, South 
Africa to West Tropical Africa, from the Himalayas to New 
Zealand and Polynesia. 
LoMARIA ALPINA, Spreng. Syst. Veg. iv. p. 62; Hook. f. FI. 
Antarct. ii. p. 393, t. 150; Hook. d Baker, Syn. Fil. 
p. 178; Hemsl. Chall. Bot. i. 11. p. 164. L. antarctica, 
Carmich. in Trans. Linn. Soc. Lond. xi. (1818) p. 513. 
Acrostichum polytrichoides, Thou. Esq. Fl. Trist. p. 32, t. 2 
(A. polypodoides). 
Polypodium Pennamarina, Poir. in Lam. Encyc. v. p. 520. 
Not uncommon in the glen. 
Distribution. Tristan da Cunha and South America, including 
the Falkland Islands and Staten Island, Australia, New Zealand, 
Marion Island, Kerguelen, the Crozets, St. Paul and Amsterdam 
Islands. 
Lowamra Boryana, Willd. Sp. Pl. v. p. 292; Hook. & Baker, 
Syn. Fil. p. 180; Hemsl. Chall. Bot. i. 11. p.163. L. magel- 
lanica, Desv. in Mag. Nat. Berl. (1811) p. 330; Hook. f. 
Fl. Antarct. à. p. 393. L. palmeeformis, Desv. in Mém. 
Soc. Linn. Par. vi. (1827) p. 290. L. robusta, Carmich. in 
Trans. Linn. Soc. Lond. xu. (1818) p. 512. 
Pteris palmeformis, Thou. Esq. Fl. Trist. p. 30. 
Many specimens of this fern were found growing in marshy 
ground in the sheltered glen. 
It reaches a height of from 2 to 3 feet, but the stems almost 
always grow in a procumbent position. In diameter the trunk 
varies from 2 inches to as much as 5 or 6. 
The Gough Island plant belongs to the same variety as the 
Tristan da Cunha one, which Carmichael described as a new 
species (Lomaria robusta, Carmich.). It, however, only differs 
