Oreobolus.] CYPERACEZ. 797 
’ Var. pectinatus, C. B. Clarke, MS.—Larger and softer, sometimes forming 
tufts 3-5 ft. high and a foot or more in diam. Leaves conspicuously distichous, 
often almost flabellately arranged, with broad equitant 5-7-nerved membranous 
sheathing bases; lamina linear-subulate, rigid, channelled in front. Peduncles 
1-flowered, often equalling or exceeding the leaves-in fruit.—O. Peokinatus, 
Hook. f. Fl. Antarct. i. 87, t. 49; Fl. Nov. Zel. i. 275. 
NortH AnD SoutH IsnAnps, Stewart IsLAND, AUCKLAND AND CAMPBELL 
IsnAnps: From the summit of Moehau (Cape Colville) and Taupo southwards, 
abundant in mountainous districts. Altitudinal range usually from 2000 to 
4500 ft., but descending to sea-level in Stewart Island and the Auckland and 
Campbell Islands. 
I have followed Mr. C. B. Clarke’s views in the arrangement of the two 
forms of O. pwmilio described above. The typical variety is also found on 
the mountains of Victoria and Tasmania ; var. pectinatus is endemic. 
2. O. strictus, Berggr.im Minneskr. Fisvog. Salisk. Lund. (1877) 
25, t. 6, f. 12-24.—Stems 2-3 in. high, creeping and rooting at the 
base, laxly tufted, much branched ; branches not nearly so dense as 
in O. pumilio, erect, curved, leafy throughout their length. Leaves 
obscurely distichous, 1-24 in. long, strict and erect or secund, very 
narrow-linear, deeply canaliculate above, obtuse, margins minutely 
serrulate ; sheaths broad, membranous, 3—5-nerved, rounded or 
truncate at the tip. Peduncle much shorter than the leaves ; 
spikelets 1, rarely 2, narrow. Glumes 3; outer the largest, 
minutely serrulate; the two others subequal, narrow, erect. Hy- 
pogynous scales 6, narrow-lanceolate, acute, minutely serrulate. 
Stamens 3. Style-branches 3, long, filiform. Nut small, obovoid, 
narrowed at the base, obtuse, white.—O. serrulatus, Col. in Trans: 
N.Z. Inst. xxii. (1890) 492. 
NortH IsuanD: Rangipo Plain, near Ruapehu, H. Hill. Sour Isnanp: 
Nelson—Mount Arthur Plateau, 7. #.C.; Lake Rotoiti, Kirk! Canterbury— 
Arthur’s Pass, Berggren! Kirk! T.F.C. Otago—Inch-Clutha, Swampy Hill, 
Maungatua, Mount Kyeburn, Hector Mountains, Blue Mountains, Bluff, 
Petrie! Stewarr Istanp: Kirk! Usually between 2000 and 4000 ft., but 
descends to sea-level in Otago and Stewart Island. 
Very close to O. pumilio, but a much more laxly tufted plant, with narrower 
strict leaves, which considerably overtop the peduncle. 
13. UNCINIA, Pers. 
Perennial herbs, usually tufted and grass-like, with fibrous 
roots. Culms erect, terete or obscurely trigonous, striate, leafy 
at the base. Leaves very narrow-iinear, flat or involute, often 
keeled, margins usually scabrid. Spikelets unisexual, arranged 
in a simple linear or oblong spike; male terminal; females placed 
lower down. Giumes imbricated all round the axis, ovate or 
oblong or lanceolate, obtuse or acute or the lower ones awned, 
concave, 1-3-nerved. Male flowers with 3 stamens; filaments 
filiform in all the New Zealand species, flat and dilated in some 
