236 BRYOLOGY OF NEW ZEALAND. 
although it would seem to have developed into something more Soo 
and more permanent than is the case with the above-mentioned states. 
Colenso’s Bee of P. tongariroense at Kew show no difference whatever 
oides 
from D. dendr 
POLYTRICHADELPHUS Mitt. in Journ. Linn. Soc., iv, 97 (1859), 
Polytrichadelphus magellanicus (L.) Mitt., op. et. loc. cit. 
Syn. Polytrichwm magellanicum L., Suppl., pl. p. 449, et Hedw., 
Sp. M., p. 101 (1801); Fl. N.Z., ii, ae Handb. N.Z. Hl pe 454, 
P. ruahinicum Col. in Trans. N.Z. Ins t., vol. 18, p. 282 (1885). 
P: polgeorpar: i op. cit., aot 19, p. 276 (1 886). 
may aaatichs passed over as a Polytrichum. The calyptra, a is on y 
the genera of this family ; it is inclined or horizontal, two-angled or two- 
winged, the angles being lateral * horizontal ; of the two faces between 
the wings, one is plane or convex, the other concave (often deeply so when 
ripe); the transverse section of the capsle therefore being that of a 
crescent, or convexo-concave lens 
The descriptions wo as to whether the concave side i is the upper or the 
lower. The Handb. N. l. describes the cereute as “ flat a ve, concave 
c 
_in pressed herbarium specimens, and the same may be the case with unripe 
capsules. 
me discrepancy also occurs in descriptions as to the ealypia, whether 
hairy or not below. In one specimen, at least, in my herbari 
young calyptra is very bristly, but it appears to lose ‘his character 
as it matures, fae at the extreme apex. This may account for the 
discrepancy referred t 
Colenso’s two sbiick placed in the synonymy above have been sus- 
pected Ly ‘Bhahergs to belong to P. magellanicus, and my examination 
of Colenso’s specimens at Kew entirely confirms this suspicion. In 
P. ruahinicum the seta is abnormally long, but is approached by other 
Specimens in the collection; there are no other differences. —_ 
of the characters on which Colenso bases his P. polycarpum are qui 
oy emaeieue of P. magellanicus—e.g., length of calyptra, orbicular mouth 
0 e, &e. 
youn Fada is a fairly common moss throughout New Zealand. 
Poconatum P. Beauv., Prodr., p. 84. 
Pogonatum subulatum (Menz.) Brid., Bry. univ., ii, 122 (1827). 
Syn. Polytrichum subulatum Menz. in Trans, Yann. Soc., iv, 303 (1798). 
 P. tortile H. f. & W., Fl. N.Z., ii, 96; et Handb. N.Z. Fl., p. 454 
(nec P. tortile Sw.). P. australasicum Hampe & C. M. in Linn., 
I ). aust i 
o adequate reason why Menzies’ name should have been 
a Pathe ay ence of P. australasicum diame & C. M.), which is certainly 
ee ve ie he New Zealand species. The Australasian plant appears 
to differ appreciably. —— certainly not widely, from the West Indian 
