453 
IV. MU S.C I. 
[Leucodon. 
Northern aud Middle Islands : Bay of Islands, on trunks of trees, rare, J. D. H. ; 
Nelson, Travers. Mr. Wilson remarks that this curious moss has the habit of Ptero- 
ffonium, aud may perhaps form a new genus, for which he proposes the name Dichelodon- 
tium. 
52. LEPTODON, Mohr. 
Creeping, much-branched, tufted, dioecious perennial mosses ; branches 
pinnate, usually elastically curving inwards when dry. Leaves quite entire ; 
nerve short ; cells dot-like. Fruitstalk lateral. Capsule straight, erect or 
inclined; annulus 0; teeth 16, very short, linear-lanceolate, membranous. 
Operculum beaked. Calyptra cucullate, clothed below with very long hairs. 
A genus of few' species, some tropical, and one or two temperate. 
1. L. Smithii, Bridel; — FI. N. Z. ii. 99. Stems 1-3 in. long, slender; 
branches 2-pinnate. Leaves rounded-ovate, obtuse ; nerve vanishing above 
the middle. Fruitstalk very short. Capsule suberect, oval-oblong. — Wils. 
Bryol. Brit. 317. t. 14. 
Middle Island, Lyall , on bark ; Otago, N.E. valley, on trunks of trees, with a north 
exposure, Hector and Buchanan. (Europe aud South Africa.) 
53. CLADOMNION, Hook. f. and Wils. 
Loosely tufted, creeping mosses, with erect generally long and slender, 
nearly simple branches. Leaves imbricate all round, plaited and striate, 
nerveless. Fruitstalk very short, lateral. Capsule erect, straight, grooved; 
peristome double; outer of 16 lanceolate teeth; inner, a membrane deeply 
divided into 16 keeled cilia. Operculum beaked. Calyptra large, cucullate. 
I follow Wilson in keeping this genus as defined in the ‘Flora of New Zealand,’ excluding 
C. setosum, which I refer back to Cyrtopus of Bridel. Mitten refers C. ericoides and 
sciuroides to the section Achyrophyllum of Hypnum, to which no doubt they are naturally 
much allied in foliage and in w'hich the capsule is angled. 
Leaves quite entire 1. C. ericoides. 
Leaves serrated at the apex 2. C. sciuroides. 
1. C. ericoides, Hook.f. and Wils. FI. N. Z. ii. 99. Stems creeping; 
branches 2-8 in. long, suberect, nearly simple, stout. Leaves pale red or 
yellow-brown, shining, imbricate, ovate or oblong, acuminate, with recurved 
apices, concave, quite entire, plaited and striate; nerve 0. Fruitstalk in. 
long. Capsule erect, oblong, 8-grooved ; outer teeth yellow, firm ; iuner of 
16 keeled cilia, united halfway up; operculum with a slender beak; spores 
very large. Calyptra yellowish. Male inflorescence axillary, small, often 
clustered.— LesJcea, Hook. Mils. Exot. t. 140. Stereodon, Mitten in Journ. 
Linn. Soc. iv. 89. 
Northern and Middle Islands : common, south of Auckland, Menzies, etc.; Nelson, 
Travers ; Otago, Hector and Buchanan. 
2. C. sciuroides, Hook.f. and Wils. FI. N. Z. ii. 100. Stems creep- 
ing; branches suberect, incurved, rather flattened. Leaves yellow-brown. 
