AUSTRALIAN MOSSES. 27 
This very curious Moss may, perhaps, form the type of a new 
genus. It differs from other species of Splachnum in the peri- 
stome, which is not reflexed when dry, and probably in the dioi- 
cous inflorescence. The habit of the Moss, apart from the singu- 
lar apophysis, is that of Orthodon, with which it agrees, especially 
in the structure of the pidum and in its place of growth upon 
the trunks of trees. 
Tas. 1. B. Fig. 1. Plants; nat. size. f. 2, portion of a plant ; 
magnified. f. 3, leaf. f. 4, apex of ditto. f. 5, 6, 7, capsules. 
f. 8, teeth of peristome: all more or less magnified. 
9. Orthotrichum Zasmanicum; caulibus plus minus confertis, 
folis patulis subreeurvis lanceolato-subulatis margine reflexis 
siccitate suberectis, seta longiuseula, capsula elliptico-oblonga 
siccitate striata, ciliis octo latissimis carinatis integris conniven- 
tibus, calyptra pallida nitida pilosiuscula, vaginula pilosa. 
(Tas. I. C.) 
Has. On the young branches of Hymenanthera angustifolia, at 
N. Esk, Launceston, Tasmania, Sept. 1841. R. Gunn, Esq. 
n. 1629. 
Stems at first growing singly from a dense stratum of radical 
fibres of a chocolate-brown colour, at length collected into lax 
tufts half an inch or more in height. Leaves yellowish-green, sub- 
erect, but scarcely crisped when dry. Capsules greenish when 
just ripe, afterwards pale reddish-brown, striated and cylindrical 
when dry, and empty of sporules. Opereulum reddish, conical 
apiculate, not half the length of the capsule. Seta longer than the 
capsule. Calyptra moderately hairy, pale-yellow, and shining. 
Teeth of the peristome eight, buff-coloured, recurved when dry ; 
cilia as long as the teeth, and nearly as broad, carinate, entire, 
whitish.— Monoicous. : 
In the large cilia this Moss is nearly allied to O. elongatum, 
Tayl., from which it differs in the leaves and calyptra. In the 
length of the seta it approaches to the Bridelian genus Ulota. 
Tas. I. C. Fig. 1, Plant; nat. size. f. 2, upper portion of plant, 
with old fruit. f. 3, 4, 5, leaves. f. 6, apex of ditto. f. 7, cap- 
sule, seta, &e. f. 8, capsule. f. 9, calyptra. f. 10, peristomt 
f. 11, portion of ditto : all more or less magnifed. ——— 
