482 
IV. M LTSC1 . 
[Hypnum. 
perichsetial nearly similar. Fruitstalk 1-2 in. long, slender, smooth. Cap- 
sule ovoid-oblong, cernuous ; operculum conical. Inflorescence dioecious. — 
Sullivant, Musci of U. S. Expl. Exped. 18. 
Northern Island: not uncommon in woods, A. Cunningham, Cotenso, etc. Middle 
Island : Pelorus harbour, Jollijfe ; Nelson, Travers ; Otago, Hector and Buchanan. 
Lord Auckland’s Islaud, United States Expl. Exped. (Tasmania, Australia.) Our 
H. crinitum is hardly different from H. extenuation. Bride], though smaller, with rather 
larger points to the leaves (the figure in FI. N. Z. represents it as too large and robust.) 
C. Mueller describes IT. extenuatum as a native of N. Zealand, at Kiapara (Bot. Zeit. 1851, 
B66) ; there are a few barren scraps of it amougst my own Bay of Island collections, but 
I cannot distinguish the two species except as forms. 
53. H. politum, Hoofc. f. and TFils. ; FI. Antarct. t. 154. /. 2. — FI. 
N. Z. ii. 114. Stems suberect or prostrate, 1 in. long, sparingly branched, 
flattened ; branches \ in., acute. Leaves bright green, shining, closely im- 
bricate, distichous, spreading, oblong, compressed, keeled, very concave, 
acute, with subpiliferous apices, quite entire; nerve 0; cells very minute ; 
perichsetial much shorter, ovate, erect, long acuminate. Fruitstalk 1 in. high, 
smooth. Capsule inclined, slender, narrow oblong, with an attenuated apo- 
physis; operculum conical, beaked, half as long as the capsule. Inflorescence 
dioecious. — Phyllogonium cullichroum, Montague, not of Bridel. 
Northern Island, Cotenso (scraps very barren). Middle Island : Otago, Hector and 
Buchaunn. (Australia, Tasmania, Audes, Fuegia, Kerguelen Laud, S. Africa.) 
-ml. H. poly Stic turn, Mitten, mss. Stem procumbent, flexuous, coin- 
pressed, pinnately branched, 1-1^ in. long. Leaves pale yellow, shining, 
compressed, distichously spreading, complicate, broadly ovate, shortly acu- 
minate, serrulate; nerve 0; cells elongate, very narrow, each with a row of 
about 5 papillae. — Mitten. 
Northern Island : On a Lichen ( Sticta ), Knight. Characterized by Mitten, who 
picked it from out of some Lichens sent by Dr. Knight. The leaves are hardly distichous, 
being imbricated all round, though the branches are compressed and the lateral leaves 
spread 2-l'ariously. The character of the cells is a very remarkable one, and compared by its 
author to that of the Indian H. Nipalense and S. American H. planum ; it requires a high 
power of the microscope to detect it. 
55. H. denticulatum, Linn. Stems prostrate, sparingly branched, 1 
in. long; branches short, subfascicled. Leaves complanate, light green and 
glossy, inserted all round the stem but 2-farious, not undulate, concave, ob- 
liquely ovate, subacute or with a short tapering entire or serrulate apex ; 
margin recurved below; nerves 2, short, basal. Fruitstalk basal, 1 in. long, 
stout, reddish. Capsule cylindric-oblong, inclined or horizontal; operculum 
conical, subacute. Inflorescence monoecious. — Wils. Bryol. Brit. 407. t. 24; 
H. Donianum, Smith. 
Middle Island : Hopkin’s Biver, in Beech forests, alt. 3-4000 ft., Haast. (Europe, N. 
America, Himalaya.) I follow Mitten in referring this plant to the European H. denticu- 
latum, which is a very variable plant. The leaves of the New Zealand form are shorter, 
broader, less acute, and less very obscurely serrulate. 
The European H. riparum is stated (FI. N. Z. ii. 109) to be possibly a native of New 
Zealand, from very imperfect specimens collected at Hawke’s Bay by Colenso. I do not 
now find the specimens, which were very small and incomplete, and I think that the identifi- 
cation is belter suppressed. 
