BERGGREN S BOTANY OF NEW ZEALAND. 433 
IsotEris. R. Br. 
(Scirpus of the Genera Plantarum.) 
Isolepis (Scirpus) subcucullata, n.sp. (Berggren).—Slender, pale; 
culms cespitose two-leaved; spikelet solitary, lateral, capituliform, 3-6 
flowered; glumes ovate, concave, hooded at the tip, pale, the lower 
being the larger; stamens 2; stigmas 3; nut obovate, flattened, 
obtusely trigonous (obsuse in text probably = obtuse), faintly punctulate. 
Habitat: Stagnant water near the Waimakariri, Canterbury Alps. 
From the other species of the genus it differs in its lax pale 
leaves, capituliform spikelets, and glumes hooded at the tip. 
I. cartilaginea, R. Br. var. rigida, n.var.—Densely ccespitose ; 
leaves longer than the rigid one inch culm, obtuse; spikelet solitary. 
Habitat: Summit of Arthur’s Pass, 3,000 fect. 
CuapiIumM. R. Br. 
Cladium (Baumea) complanatum, n.sp. (Berggren).—Robust, 1-2 
feet high ; culm compressed bivaginate; sheaths compressed with a 
shortened leaf; leaves flattened equalling the culm, or in part flat 
and then somewhat convex narrow-ensiform acute striate equitant; 
panicle erect contracted, the primary rachis channelled on one side, 
the branches elongate subternate smooth springing from the axils of 
spathaceous bracts; spikelets single or in threes alternate on the 
branchlets ovate-oblong two-flowered or with a third rudimentary 
flower; glumes 5 subdistichous rusty-red ovate acuminate keeled 
striate ciliate at the margin; nut shortly stipitate oblong trigonous 
dark chestnut crowned by the pale smooth pyramidal base of the 
style. 
Habitat: In moist places among manuka at Ohaeawai and at 
Taheke, North Island. 
OREOBOLUS. R. Br. 
Oreobolus strictus, n.sp. (Berggren).—Three inches high; culms 
creeping fasciculate branched, branches laxly ccespitose, leaves rather 
laxly imbricate larger than the peduncles, 2-2} inches high, strict or 
turned to one side (unilateraliter secundis) linear, canaliculate-sulcate 
above, scabrid at the margin, the two uppermost remote, sheaths 
truncate, nerves 3 distinct, 2 lateral indistinct and vanishing above; 
perianth leaves white; nut white obovate, the apex produced, its base 
having the appearance of a 3-rayed star. 
Habitat: Marshy ground near the Baaley river, Canterbury. 
This species differs from 0. Pumilio (R. Br.) in the culms being 
more laxly cespitose, the leaves strict and larger than the pedicel, the 
sheaths being truncate and 3-neived, the perianth leaves being 
white (in 0. Pumilio they are dark), the nut being narrower and 
white (dark in 0. Pumilio), less rugcse and with the apex less deeply 
marked. 
