HYPOPTERYGIACEAE. 295 
Inst. xix, 277 (1887). H. pacha ete Col. op. et loe. cit 
H, nulcanicum Col. op. cit., xxi, 43 (1889). 
var. glaucum (Sull.) Dixon comb. nov. 
Syn. H. glawcum sass in Proce. Amer. Acad. Art. Sei. iii, 184 
1855) ; Musci of U.S. Explor. Exped., p. 26 (159) ; Handb. 
N.Z. Fl. ,p. 488. H. Smithianum var. B H. f £. & W., FL 
N.Z. ii, 118. 
nov. var. nudicaule Dixon. Stipes haud tomentosus. 
The PennuueNak characters of this species as compared with the 
following are the tomentose stipes; the erecto-patent stipes leaves 
(though in ye dry state they may be somewhat reflexed) ; the sharply 
oothed leaves; the amphigastria with usually a stout, long point, and 
leaves rather closely set, and when dry very little undulate, jisti. 
chously overlapping, and in most cases much deflexed on each side of 
the branch, so that the dorsal side of the branch is convex and terete. 
The nerve of the leaf is often stout, and reaches high up (H. pachy- 
neuron Col. is only a form showing this character well). 
I find no fruiting characters by which it may be recognized, 
though the setae are often longer and the capsule sche than they 
are in H. rotulatum, and the capsule is usually pen ndulous or subpen- 
dulous, — in the latter species it is more often horizontal. 
The var. glaucum in its extreme form is a very marked gate 
with iiiats fronds, which may even measure no more than 5 mm. 
across, of a elaucous green, sometimes almost white caepalel the 
branches terete and julaceous (above) when dry, the seta very short, 
the capsule exceedingly short and turgidly oval, frequently rather 
narrow at the mouth. Intergrading forms however connect it by a 
continuous aa with the type, and it cannot be considered more 
than a variety 
The var. nudicaule, which appears to be rare, differs in no way, so 
far as I ean detect, from the type except in the stems being non- 
tomentose. This is in itself, perhaps, a not very important character, 
but since it is in this species an almost constant and very obvious one, 
it seems desirable to lay stress on what is a very marked exception 
and one that may very easily mislead. 
The ot aie - the leaf border varies very considerably, as it 
does, even more nH. rotu tulatum, and I do not think it can 
d amphigast he descriptions of H. Hilla Col. and H. pachy- 
neuron Col. are entirely applicable to H. novae-seelandiae, and do not 
pe ao any distin ing rae orto Colenso indeed remarks of both 
matics 
The et is widely aistetb ated, as is also, apparently, var. 
glaucum. The var. nudicaule I have from three localities, all in the 
North I., viz. Blueskin, Waititi, leg. Berggren (2004) ; 'P. apakami 
leg. Bergeren (2239) ; Mauriceville, Wairarapa, leg. Gray (277). 
