472 
IV. MUSCI. 
\_Hypnum. 
j(i. H. denticulosum, Mitten, mss. Very similar to II. Iceviuscuhim, 
but leaves of the branches patent, not compressed, their apices erect ; nerve 
not protuberant on the back below the apex ; cauline leaves not narrowed 
into a filiform apex, all the leaves with the margins minutely closely denticu- 
late. — Mitten. 
Northern Island: Auckland?, Herb. Sinclair. 
Hedwig, Muse. Frond, iv. 
B. Adunca. 
6. H. uncinatum, Hedwiy ; — Ft. N. Z. ii. 107. Stems 1-2 in. high, 
slender, erect, pinnately branched. Leaves crowded, secund, falcate, circi- 
nate, subulate-lanceolate, narrowed into very slender points, striate, subserru- 
late ; nerve vanishing below the apex ; perichsetial very long, striate. Fruit- 
stalk 1 in. high, reddish. Capside cernuous, oblong, smooth ; operculum 
conical, apiculate. Inflorescence monoecious, 
t. 25 ; Wils. Bryol. Brit. 394. t. 26. 
Northern and Middle Islands : in wet begs, etc., Huiarau river, Colenso ; Canterbury, 
Sinclair and Haast ; Otago, Hector and Buchanan. (Almost all cold climates.) 
7. H. Kneiffii, Schimper ; — FI. N. Z. ii. 107. Very similar to II. un- 
cinatum, but leaves less crowded, not circinate, ovate-lanceolate, acuminate, 
deltoid at the base, concave, quite entire, not striated ; nerve reaching half- 
way. Capsule oblong, cernuous ; operculum conical. Inflorescence dioecious. 
— Wils. Bryol. Brit. 390. t. 58. 
Northern and Middle Islands : East Cape, Colenso ; Dusky Bay, Lyall. — Specimens 
all very imperfect and without fruit. (Europe, N. Asia, N. America.) 
8. H. fluitans, Linn.; — Ft. Antarct. i. 141. Stems erect or floating, 
1-3 in. long, subpinnately branched. Leaves yellow-brown, loosely imbricate, 
falcate, second, lanceolate, acuminate, subserrulate or entire ; nerve vanish- 
ing beyond the middle. Fruitstalk 2-3 in. long. Capsule oblong, cernuous ; 
operculum conical. — Wils. Bryol. Brit. 387. t. 58. 
Campbell’s Island : swampy places, barren, J. H. H. (All temperate and cold lati- 
tudes.) 
At'. H. brachiatum, Mitten , mss. Stems matted, 4-5 in. long, pinnately 
branched, red-brown below, pale green and yellow above. Leaves falcate- 
secund, much incurved, concave, lanceolate from a broad ovate base, long- 
acuminate, quite entire ; nerve vanishing below the apex ; perichsetial erect, 
elongate, lanceolate, convolute. Fruitstalk slender. Capsule shortly cylin- 
dric, arcuate ; operculum conical, acuminate. 
Northern and Middle Islands: Tobago Bay, Knight ; Otago, in wet grounds, 
Hector and. Buchanan. — Very nearly allied to the European H. revo/vens, and scarcely dis- 
tinguishable from it, except (according to Mitten) by the more ovate base of the cauline leaves, 
with more numerous cells at their angles. 
10. H. fUicinum, Linn.; — FI. Antarct. i. 141. Stems slender, 2-3 in. 
high, compressed, pinnately branched, tomentose with purplish radicles. 
Leaves dull green, spreading, falcate or suberect, secund, cordate at the base, 
serrulate ; nerve solid, continuous ; perichsetial striated. Fruitstalk 1 in. 
