340 BRYOLOGY OF NEW ZEALAND. 
branches may be robust and simple or only slightly rebranched. In 
the latter case the plant has much resemblance to Trachyloma, but 
the densely imbricate, very concave leaves, very widely pointed, 
with the nerve strong, pereurrent, and sharply denticulate at back, 
will readily separate it from that plant. coe fruit, which is rare, 
is very distinet, being very long ad narro suleate, on a seta 
ose above 1 em. long, and with long, ees erect ‘perichaetial 
os s found in both Islands, but is I believe very rare in the 
South L and not common anywhere. It occurs also in Australia. 
Scrapocuapus Lindb. e Broth. in Engl. & Prantl, Pflanzenfam., 
Muscei, ui, 1167 (1909). 
The Saag hee this genus is on eee same lines as that of 
Mniodendron. See sige Hypnodendro 
As ual genus 0 on a. species, cacnblees ca eiiang but 
differing essentially in the smooth, not furrowed capsule 
Key. 
Fruits numerous on the same stem; capsule 
BDOUL 2 Tani lone, carved. o> 1. Kerrii 
Fruits day or few; ee 6 mm. long, 
straight 
; . n. ; ; 
iv, 86 (1859Y. ee Kerrit Se a ee 
N.Z. Fl. p. 466. pnodendr os Helmsu C.M. 
Hedwig. XXXvii, 169, ad, Brothers I sathactio ee 
phyllum Col. in Trans. N.Z. Inst. xx, 240. 
e two species of Sciadocladus are aso identioal in vegeta- 
tive characters, very closely resembling Hypnodendron arcuatum, 
which usually has the ar less crowded, and more or less compla- 
nate, with a rather stouter nerve and w ider cells (when in he the 
furrowed capsule distinguishes that species at once). th 
differences from Climacium see the description of that ce 
I have tried in vain to confirm the vegetative differences 
in ndboo 
nd no difference in the strength of the nerve; it may be gen rally 
more _— a ie back in S. Menziesii, bat this is tainly 
not constant. Th . Kerrtvi may generally be slightly longer 
and with oe walls a a litle more inerassate, but <a too is unreliable. 
There is, however, one character which I tlievs to be of some value; 
the cells in S. Kerrii have always found quite smooth, while those 
of S. Menzies project very slightly ~ the back, at the cell apices, 
in a minute spieulose point, which may be seen either in profile, or 
by Aineaseictesit light, giving a “panetate” appearance under a high 
power of the mi microscope. ie erste in 8S. Kerri also are nearly 
Se Se than in S. Men 
markable aquatic te “enlisted by Berggren (Rotorua, 
Tarawera, No. wh appears to me to be a form of this species, 
