Hypnurn. ] 
IV, MUSCT. 
478 
long, smooth. Capsule cernuous, subcylindrical ; operculum conical, acute. 
Inflorescence monoecious. — Wils. Bryol. Brit. 392. t. 26. 
Lord Auckland’s group : banks of streams, Lyall. A very slender form or variety, 
distinguished as var. 0. in FI. Antarct. (All cold and temperate latitudes.) 
11. H. limbatum, Sullivant in Proc. Am. Journ. Sc. and Art. 183, and 
in Musci of U. S. Expl. Exped. 18. Stems 2-3 in. long, slender, flexuose, 
floating, sparingly branched. Leaves lax, spreading, oblong- or linear-lanceo- 
late, acuminate, concave, keeled, serrate above; nerve stout, percurrent; apex 
serrated; margins thickened. Fruit unknown. 
New Zealand ; on stones in the bottom of streams (U. S. Expl. Exped.). Mitten is 
inclined to regard this as a state of Isothecium marginatum , p. 466 
C. Hispida. 
12. H. hispidum, Hook. f. and Wils. FI. Antarct. i. 140. t. 61. f. 2. 
Steins prostrate or pendulous from a creeping rhizome, arched, subpinnately 
branched above, 3-10 in. long, rigid, subhispid; branches curved, often 
attenuate. Leaves dark green, rigid, secund, densely imbricate, ovate below, 
subulate above, very long-acuminate and setaceous, somewhat plaited, quite 
entire ; nerve stout, excurrent ; perichaetial smaller, ovate ; nerve long, exserted. 
Fruitstalk short, in. long, red, smooth, stout, flexuous. Capsule ovoid, 
cernuous or horizontal ; operculum with a slender curved beak as long as the 
capsule or shorter, Calyptra small, white. Inflorescence dioecious. — Leskea, 
Mitten. H. aristatum, Sullivant in Proc. Amer. Acad. Sc. and Art, 1854. 
Abundant on rocks, in streams, and throughout, the island, J. T>. II. Lord Auck- 
land's group: rocks on the hills, barren, J. D. II . — A puzzling moss. Wilson suggests 
that it may be better placed in Isothecium. I have followed Sullivant in placiug it in section 
Hispidcy (Tasmania, Australia, Norfolk Island.) 
■f3. H. glauco-viride. Mitten , mss. Very closely resembling II. his- 
pidum, but nerve vanishing below the apex. — Mitten. 
Kermadec group : Sunday Island, Milne. (Norfolk Island.) 
14. H. umbrosum, Mitten in Journ. Finn. Soc. iv. 92 {Leskea). Habit 
and colour of II. hispidum , but smaller and more slender. Stems 1-2 in. long, 
with a few irregular branches. Leaves spreading, subsecund, ligulate and 
acuminate from a subovate base, minutely serrulate above ; nerve stout, vanish- 
ing in the elongated apex ; perichaetial ovate-subulate from a broad base, 
1-2-toothed on each side. Fruitstalk \ in. long, red. Capsule ovoid, hori- 
zontal ; operculum rostrate, as long as the capsule. Inflorescence dioecious. 
Northern Island, Kerr {in Herb. Mitten ) ; Auckland, Kniglit. 
D. CuPR.ESSIFOK.MIA. 
15. H. cerviculatum, Hook. f. and Wils. Ft. N. Z. ii. 113. t. 91./. 
2. Stems creeping, matted, 1 in. long, subpinnately branched; branches 
nearly straight. Leaves yellow-green, shining, falcate and secund, lanceo- 
late, acuminate, serrulate at the apex, margin scarcely recurved; nerve 0 ; 
perichaetial erect, ovate-lanceolate, apiculate, serrulate. Fruitstalk short, i 
vol. i. 2 1 
