HYPNODENDRACEAE. 339 
apparently the explanation, as Mitten in all eases attributed the 
name to & W. In any ease there is, I think, only one species 
a showing some variation in size, in direction and undulation 
of leav 
It apnea to be rare in New Zealand, and all the specimens I 
p ve seen recorded are from the North I., with the 
exception of one collected by R. Brown ter., and unlocalized. pte 
was in the habit of writing ‘‘ North I.”’ on his envelopes en a 
specimen was collected there, and as this was not so en mdéreti the 
presumption is that it came from the South I.; but it would hardly 
be safe to rest the oceurrence of the species there on such negative 
evidence from a single specimen. It occurs also, but I believe rarely, 
in Eastern Australia. 
HYPNODENDRACEAE. 
Robust plants, with erect, woody secondary stems from creeping 
rhizomatous primary stems; the secondary dendroid, the stipes 
unbranched, naked or tomentose; above with either whorled branches 
or expanding ie a densely branched and often rebranched Fa 
Leaves large, generally sharply denticulate, with a more or less 
strong nerve, tte n excurrent in a toot thed arista. Cells eines 
smooth, narrow, not markedly differentiated at angles. Capsule on 
a more or less elongate seta, usually large, inclined or horizontal 
(in Braithwaitea erect), subeylindrie, often furrowed. Peristome 
perfect, more or less Hypnoid. 
The lasts belonging to this Family are readily known by 
their dendroid habit, and large size, the only mosses nearly 
resembling them being Climacium (which see), of which the fruit 
widely in the setaceous stem-leaves and immersed fruit. The leaves 
in the present Family are very little altered when 
Key TO GENERA. 
leayes almost: opluse 2) > Braithwaitea 
Frond elongate, more or less an ies bipinnate; 
obtu 
1 {sat in a close frond or  whtnion. leaves 
te 
5 f Secondary stem or stipes naked; éabiaie smooth Sciadocladus 
wed 
Ca psuie: furrdwet2= oe ee a 
Stipes reese marked tomentum; leaves mostly 
ore or less complanate, plane a We 5c Ss Hypnodendron 
3 /| Stipes tomentose; leaves crowded 
planate, usually striate Sehen dry, concave 
or channelled Oe ee Mniodendron 
BraltHWwaitea Lindb. in Act. Soe. Se. Fenn. x, 250 (1872). 
Braithwaitea suleata (Hook.) Lindb. op. et loe. cit. 
Syn. Leskea sulcata Hook. Muse. Exot. t. 164 (1819). 
Tsothecitum sulcatum H. f. & W., FI. N.Z. ii, 104; 
Handb. N.Z. FL, p. 464. 
Readily known by its Hypnodendroid habit, with naked stipes, 
and side frond which is normally densely bipinnate, but the 
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