250 BRYOLOGY OF NEW ZEALAND. 
pidum (both are sterile). The Kermadees plant (Raoul I., MeGilli- 
vray) is intermediate between these and KE. hispidum, having the 
leaves shorter and wider in the acumen than in typical E. hispidum, 
but narrower than in the Fiji specimens, it with the nerve shortly 
sa oo distinetly excurrent. The plant cannot be considered as 
e than a (? insular) var. of EZ. hispidum, and the New Zealand 
Penadens) plant forms a link with the type. 
PTYCHOMNIACEAE. 
mall Family created vf Fleischer, into which three or four 
genera ‘natinrally fall which have long been shifted from one taxo- 
i short 
nerved leaves and the plicate capsule, together with a mostly highly 
developed peristome, are the main charact 
Key TO THE GENERA. 
be pe aeseteatine Leaves erect or erecto-patent, 
squarrose; pce upright. 
Nerve short, single; terminal bunches of gemmae 
enn plant very small, branches not 
1 flatten Tetraphidopsis 
| Nerve O “3 Boi! “short ‘and double, ‘terminal gem- 
mae no ee ante 2 
( —— all ‘eevee pale, toned ana ‘pbekas 
2 apex, very glos: sa Dichelodontium 
Siranation not flattened . es ; te Soe 
‘Leaves acute, not plica nie Glyptothecium 
3 Robust plant, leaves staat with obtuse, recurved 
lus Cladomnion 
II. Ptychomnieae. Leaves squarrose. Capsule 
i 1 sa fas Ole ae aw.  Ptychomnion 
CLADOMNIEAE. 
DicHELopontium H. f. & W. e Broth. in Engl. & Prantl, Pflanzenfam., 
Musci, ii, 875 (1907) 
Dichelodontium nitidum (H. f. & W.) Broth. op. et loe. cit. 
Syn. Leucodon nitidus H. f. & W., Fl. N.Z., ii, 99; Handb. 
Z. , Pp. 457. ecaente L yallii Mitt. in ny fae Linn. 
Soe., Bot., iv, 89 (1859). 
Very eat in the pale, glossy snes the leaves widely 
rounded at apex, coneave, entire, with the upper cells elliptic-rhom- 
boid ; and the shortly eylindrieal — aaanty plicate when d 
son compares it with Pterogonium; but as — is understood 
now, ¢ does not seem a very fortunate compari 
The species is endemic, and occurs in both North and South Is. 
Brotherus ae the hagieiiny name and the binominal to H. f. 
& W., Fl. N.Z. ii, 99; but in that publication the authors only say 
that if the a should Ws generically separated they propose the 
name Dichelodontium for it; a remark Bins can seareely constitute 
publication. 
