82 THE VOYAGE OF II. M.S. CHALLENGER. 



Juan Fernandez. Bertero ; with the preceding — Moseley. 



Habit and size as in Porotrichum fasciculatum and Porotrichum rigidum, but in its 

 leaves different from both. 



Porotrichum (Thamnium) rigidum, Mitt. 



Porotrichum (Thamnium) rigidum, Mitt, in Journ. Linn. Soc. Loud., xii. p. 467. 



Juan Fernandez. Bertero ; barren stems — Moseley. 



It was gathered also by Mr Wilson Saunders' collector, amongst whose specimens 

 there occurred a stem with one capsule, small for the size of the moss, of a shortly 

 oval form, horizontal in position, on a penduncle 1 cm. long. The species in size is 

 like Porotrichum fasciculatum, Swartz, but with no obtuse leaves. All these species 

 are much larger than Porotrichum valdivicB, or Porotrichum pandurcBfolium, C. Mull., 

 from Chili. 



Lepyrodon parvulus, Mitt. 



Lepyrodon parvulus, Mitt, in Journ. Linn. Soc. Lond., xii. p. 422. 

 Juan Fernandez. — On bark with Zygodon obovcdis and Leptodon smithii, barren — 

 Mr W. Saunders collector. Masafuera. — Cuming. 



Also in Chili. 



Leptodon smithii, Mohr. 



Leptodon smithii, Mohr., Obs., p. 27 ; Mitt, in Journ. Linn. Soc. Lond., xii. p. 450. 

 Neclcera smithii, C. Mull., Synopsis Muse. Frond., ii. p. 118. 

 Hypnum smithii, Dicks., Fasc. ii. Crypt., p. 10, t. 5, fig. 4. 



Juan Fernandez. — On bark with Zygodon obovcdis and Lepyrodon parvulus, barren — 

 Mr W. Saunders' collector. 



It is found in Chili, and extends to South Africa and New Zealand. 



Stereodon lechleri, Mitt. 



Stereodon lechleri, Mitt, in Journ. Linn. Soc. Lond., xii. p. 535. 

 Hypnum lechleri, C. Mull, in Dot. Zuit., 1856, p. 455. 



Juan Fernandez. Bertero; Moseley. 



Also found on the Chilian coasts. It differs from the Stereodon chrysogaster, Mull. 

 Hypnum portale, Hook. f. et Wils., which is also found in Juan Fernandez and in New 

 Zealand in about the same particulars as the smaller states of Stereodon eupressiforme, 

 differ from those which are more robust, but in the case of Stereodon lechleri and Stere- 

 <><lna chrysogaster, it is size only that is the most obvious difference, the ramification and 

 colour of the foliage being uniform in both. 



