394 Transactions,— Botany, 
The South Island is much richer in Juncee than has hitherto been 
supposed. In addition to the species now mentioned, Juncus capillaceus, 
Hook. f., previously known only in a single habitat in Hawke Bay, has 
been found in the Southern Alps; J. pauciflorus, T. Kirk, at Broken River, 
and J. involucratus, T. Kirk, in the Amuri. In short, with the exception of 
J. antarcticus, Hook. f., restricted to the mountain tops of Campbell Island, 
and the northern J. holoschenus, all the New Zealand species are found in 
what may be termed the middle portion of the South Island—the old 
provincial districts of Westland and Christchurch including the Amuri. We 
may fairly expect that other species will be discovered. 
Art. LVI.—Description of a new Species of Hymenophyllum. 
By T. Kreg, F.L.S. 
Plate XXL—B. 
[Read before the Wellington Philosophical Society, 1st December, 1877.] 
Hymenophyllum montanum. 
Rutzome slender, wiry, creeping ; fronds few, 2-3 inches long, glabrous, 
linear oblong or oblong lanceolate, bipinnatifid; stipes about 1 inch long, 
winged nearly to the base; rachis flexuous, winged, pinns in from 5-8 
pairs, mostly alternate, spreading, about one-third of an inch long, eut 
nearly to the rachis into 2-4 spreading, linear, forked or bilobate segments. 
Involueres terminating the segments, small, oval, 2-lipped nearly to the 
base ; lips deeply toothed or jagged ; receptacle included. 
This interesting addition to our flora was discovered on mountains at 
the head of Lake Wakatipu by Mrs. Mason, of Queenstown, to whose 
kindness I am indebted for specimens. 
In habit our plant closely resembles Trichomanes humile, but the frond 
is broader at the base, the pinne more divided and spreading. It has 
affinities with H. javanicum, Spreng., and might possibly be overlooked as a 
stunted condition of that species but for its different habit. In addition to 
the larger and more highly divided frond, H. javanicum is distinguished 
from the present species by its rounded involueres and crisped wings and 
segments. H. montanum is distinguished from other New Zealand species 
by its narrow involueres with deeply toothed or jagged tips; it is of mem- 
branous texture and of a dull green hue. 
In old specimens the segments are slightly constricted immediately 
below the base of the involucre. 
Plate XXI.—B. 
1. Hymenophyllum montanum, natural size, 
2. Fertile pinne, magnified. 
