KEPOKT ON THE BOTANY OF THE ISLANDS OF THE SOUTHERN OCEAN. 175 



Hypnum (Pleuropus) bonplandii, C. Mull. 



Hypnum bonplandii, C. Miill., Synop. Muse. Frond., ii. p. 463. 



LesJcea bonplandii, Hook, in Kunth., Synop. PL iEq., i. p. 61, et Muse. Exot., t. 55. 



Tristan da Cunha. — One small barren specimen — Moseley. 



This moss would appear to be very widely dispersed. Originally described from the 

 Peruvian Andes, it has since been found in South Africa and described as Hypnum 

 pseudosalebrosum, Hampe, and Leucodon sericeus, Hornsch. ; in India, whence Montagne 

 described it as Isothecium nilgheriense, and Griffith as Pleuropus fenestratus ; and the 

 Hypnum wilkesianum, Sull, from the Pacific Islands, is probably the same, for specimens 

 have been seen from Hawaii. It is the largest species of tbe group, to which Schimper 

 applied the name of Homalothecium, and, like the Hypnum sericeum, according to the 

 circumstances affecting its growth, varies not a little in size and appearance. 



Hypnum (Rhynchostegium) raphdiorrhynchum, C. Miill. 



Hypnum (Apt yd ux) rapMdorrhynchum, C. Miill., Synop. Muse. Frond., ii. p. 354. 



Tristan da Cunha. — Fragments only — Moseley. 

 South Africa. 



Thuidium curvatum, Mitt. 



Thuidium curvatum, Mitt, in Melliss's St Helena, p. 365. 



Tristan da Cunha. — Endemic. Small barren stems — Moseley. Originally discovered 

 by MacGillivray and Milne. 



Very closely resembling the New Zealand Thuidium fulvastrum, and differing chiefly 

 in the shorter cauline leaves, which are more papillose and not plicate. 



Fissidens asplenioides, Sw. 



Ftisidens asplenioides, Sw.; Hedw., Muse. Frond., iii. 65, t. 2S ; C. Miill., Synop. Muse. Frond., i. p. 69. 



Tristan da Cunha. Moseley. 



Without fruit, but agreeing with specimens of this species which is found over a vast 

 area. Originally described from the West Indies, it is the Fissidens jlabellatus, Hornsch., 

 and the Fissidens stijiitatits, Angstr., from Brazil; the Fissidens turbinaius, Taylor, from 

 the Andes, and the species is found also in Australia and in Java as well as in the 

 Atlantic Islands. 



