486 
IV. MUSCI. 
[. Hymenodon . 
distichous, oblong, piliferous, papillose; cells rounded, minute. Fruitstalk 
slender, lateral from near the base of the stem. Capsule suberect ; peri- 
stome of 16 narrow, subulate, membranous equidistant fugacious teeth, cohe- 
ring by their tips, and united by a narrow basal membrane. Operculum 
beaked. Calyptra split down one side. Inflorescence dioecious. 
A small tropical genus, found in New Zealand, Java, and Brazil, on trunks of trees, etc. 
1. H. piliferus. Hook. f. and Wih. FI. N. Z. ii. 117. t. 92. /. 3. 
Stems quite simple, erect, in. high. Leaves brittle, light glaucous-green, 
not shining, moistening slowly, laxly distichously imbricate, spreading, 
elliptic-oblong, flat, with long piliferous points, erenulate ; nerve vanishing ; 
perichsetial lanceolate, acuminate, erect. Fruitstalk 1 in. long and slender, 
red. Capsule contracted at the mouth ; teeth white, fugacious, faintly 
striate longitudinally and transversely. Calyptra small, white. — ? Hypmm 
Mougeotianum, A. Rich. ; FI. N. Z. 57. 
Northern and Middle Islands : Bay of Islands, on trunks of Cyathea dealbata, 
J. I). H., etc. : Wangaroa and Auckland, Jolliffe ; Otago, Hector and Buchanan. (Tas- 
mania, Australia.) 
67. HTPOPTERY GIUM, Bridel. 
( Including Lopidium and Catharomnion.) 
Rhizome creeping on trees; stems erect, tree-like, 1-2-3-pinnately 
branched, flattened. Leaves 3-ranked, the lateral vertical and oblique ; dorsal 
dissimilar, smaller, appressed to the stem, stipule-like ; nerve produced to the 
apex, or vanishing ; cells minute. Fruitstalk lateral, produced underneath the 
leaves, curved at the top. Capsule suberect, cernuous or pendulous, straight, 
annulate ; peristome of Ilypnum or Leskea, outer sometimes wanting. Oper- 
culum convex, beaked. Calyptra coriaceous, conical-subulate, usually 
dimidiate. 
Tropical and south . temperate mosses, abounding in damp woods, exceedingly pretty in 
habit ; forming matted tufts in vegetable soil and on trees. Branches often radiatiug from 
the top of the stem. 
I. Hypopterygium. — S tem 2-3-pinnatelv branched above, there orbicular or deltoid in 
outline ; branches I’adiating. Fruitstalk rather long. Capsule pendulous. 
a. Leaves not mixed with bristles. 
* Branches Z-pinnate 1. LI. filicul reform e. 
** Branches 2-pinnate. 
Fruitstalk stout. Operculum conical, acuminate. Inflorescence 
monoecious 2. H. viridulum. 
Fruitstalk slender. Operculum subulate, beaked, as long as the 
capsule. Inflorescence dioecious 3. 3. oceanicum. 
Leaves decurved ; dorsal with a continuous nerve 4. 3. novce-Zelandioe. 
Leaves ovate, acute; dorsal with the nerve vanishing beyond the 
middle 5 .3. discolor. 
Leaves glaucous ; dorsal orbicular-ovate, acuminate ; nerve pro- 
duced towards the apex 6. 3. glaucum. 
f}. Leaves with bristles intermixed. 
Leaves spinulose-serrate 1.3. tamariscinum. 
Leaves slightly toothed at the apex . ... 8. 3. rolulatum. 
