72 BRYOLOGY OF NEW ZEALAND. 
[DicHopontium Schimp. 
Brotherus (Musci, p. 31 eu) suggests that four species of a described 
by K. Brown in Traus. N.Z. [nst., vol. 29, pp. 456-57 (viz., D. Cockaynu, 
D. debilum, D. papillosum, sh D, sublatifolium), may very possibly belong 
to this genus, being no doubt partly guided to this conclusion by the descrip- 
tion of the cells as papillose. Unhappily, not one of these four species 
s herbarium ; but from a careful comparison of the 
and descriptions, together with their position in Brown’s arrangement 
{next to D. Schreberi), I have little sole that they belong rather to 
Dicranella, to which, too, their narrow-poited vaginant leaves would attach 
m; and in regard to the last two species I have scarcely any hesitation 
in referring them—as I have done above—both to D. clathrata. Dicho- 
ntium, moreover, is unrepresented in Australia, and is mostly confined 
to Europe and North America, a single additional species bemg found in 
the Himalaya, and two others in Chile and the Magellan region. It must, 
I think, therefore, be comtamaly excluded at present from the New Zealand 
list.] 
DicraNoweEIsia Lindb. 
The genus Dicranoweisia is rather difficult to define, on the one hand 
section of Dicranum as Isocarpus. The crisped leaves (when dry), of less 
firm texture, with the alar cells only moderately developed, short erect 
but in the only New Zealand species the alar cells are highly developed, 
while in this and in the European D. crispula the peristome teeth are slightly 
striolate as in Dicranum. It is therefore somewhat hard to justify its separa- 
tion from Dicranum, the more so in view of the § Holodontium Mitt. of that 
genus, where the peristome is almost identical with that of Dicranoweisia ; 
the relationships of the group 
Dicranoweisia antarctica (C. M.) Par., Ind., p. 339. 
Syn. Blindia antarctica C. M., Syn., 1, 344. -Dicranum antareticum 
Mitt., M. Austro-amer., p. 63. Weisria crispula H. f. & W., Fi. 
Antarct., 1, 127, t. 58 (nec W. crispula Hedw.). W. ried var. 
ambigua ‘Wils., Handb. N.Z. Fl., p. 404. Blindia chrysea C.M. & 
Beck. in Trans. N.Z. Inst., vol. 25, p. 290. Weissia chrysea R. Br. 
ter. in Trans. N.Z. Inst., vol. 31, p. 441, t. xxxvili. W. Webbii 
R. Br. ter., op. cit., p. 440, t. XXXvlil, 
plant was referred by Hooker and Wilson to D. crispula (Hedw.), 
a widely spread species on the colder mountains of the Northern Hemi- 
here. The New Zealand and Antarctic plant, however, differs in certain 
definite characters: the alar cells are very strongly developed, forming 
clearly marked auricles ; the remaining basal cells are narrower and firmer, 
the plants taller, and the capsule quite smooth when dry, while in the true 
seniehela it is slightly plicato-striate. The disposition of the leaves when 
ary i in D, antarctica is also characteristic ; the lower part remaining scarcely 
