SPMATOPHYLLACEAE, 305 
HANDBOOK. PRESENT ARRANGEMENT. 
ba ATIROIi Gc cs ‘a mee Thuidium 
CPU TPC te See eh ey atts pp aerate 
Bie CMa eee ee ee Amblyste 
Be hmibatun co 8 eee Hypncdendros marginatum var. 
PAIRING a oe eee, ee a ee Echinodium 
AUDIOS ILOETONS © 697 ea Rhapidostesium and cetronet 
oS SIDERGCHS <7" nek Fas, ae Ctenidiu 
ae TOOTICREEN 8 io 2 eae a Fectorraiats 
UIRtHIn, © Gat er pees eae Isopterygium 
Hi -pulehellunm 222 <g2 5 eis Isopterygium 
H. Dagar oe ae pian gene Rhapidostesium 
He bandwichense- 7. Ectropothec iu 
Paden ape ees ka Eurh 
Lt oo So gees, ieee, Gotan a ae ree tege a Rhynchostegium 
ARMAS ie Shes ieee leis set Brachythecium 
DeEPentig. 6S. ies Ss baer ee Amblystegium 
PORE esc et cr en eee Campylium 
Acicularia Sage wea eee Ptychomnion 
Cochiearifelia 2 S| et mee Lembophyllum and Weymouthia 
chlam ili pat eres ees Acrocladium fe irene 
Hi; ‘atl Ripa eee era Eucamptodon inflatu 
Distichopnyila pe Meeps rae seat 
iH, enugtuMm 2 SS ee Acanthocladium 
leh voltae ae) pes) me eS Catagonium 
H. polyst ietum eer ee Taxithelium 
> denticuisteum: = 6 = eee oS. Plagiothecium 
SEMATOPHYLLACEAE, 
ants of varying habit; leaves nerveless, with very narrow 
upper cells, and a few large, orange or hyaline, inflated cells at 
the basal angles. Capsule small; lid (except in Acanthocladium 
extenuatum) with a long, fine beak. 
ACANTHOCLADIUM Mitt. ee Moss. in Trans. & Proce. Roy. Soe. 
Victoria, xix, 85 (1883). 
A small genus with its centre of distribution in South-East 
Asia, extending to Africa, and (in the present eg to Austral- 
asia, with one or two S. American representativ 
Acanthocladium extenuatum (Brid.) Mitt. op. et loc. cit. 
Syn. Hypnum extenuatum Brid. Bry. univ. ii, 484 (1827) ; 
Handb. N.Z. FL, p. 481. Hypnum crinitum H. f. & W., 
Fl, N.Z. ii, 114. 
Readily known by the leaves, either abruptly eontracted or 
gradu ally tapering to a longer or shorter filiform hair-point, 
together with the enlarged, vesicular alar cells. The plants vary 
immensely in habit, but are usually of a pale, greyish or ion gee 
green colour, laxly and widely Some, rather ee ith the 
branches generally tapering to a fine, convolute point The leaves 
vary remarkably, both in size and outline, bene sometimes large, 
oblong-ovate, broad and cucullate at tip, and abru ptly contracted 
to the hair-point; at other times extremely narrow, lanceolate- 
acuminate, and gradually tapering. The hair-point is sometimes 
show the piliform arista. The seta is rather long, the eapsule 
