Cheeseman. — Revision of the N.Z. Species of Carex. 433 



perigynia are sharply serrate. I find that the male spikelet is not unfre- 

 quently partly female, a point not alluded to hy Dr. Berggren, whose 

 description and plate are otherwise very accurate. 



19. C. raoulii, Boott, in Hook. fit. Fl, Nov. Zeal., i., 283. Yellowish or 

 dark green. Culms rather stout, laxly tufted, 9 inches to 2 feet in height, 

 triquetrous, scabrid. Leaves usually longer than the culms, |~J inch broad, 

 flat and grassy, grooved, coriaceous, margins scabrid. Bracts long and leafy. 

 Spikelets 1-7, pale, stout, erect, approximate and sessile, or the lower ones 

 distant and shortly pedunculate, £-1 inch long, I inch broad ; all female 

 but usually with a few male flowers below, the uppermost generally longer 

 with more male flowers below. Glumes pale brown, broadly ovate, thin 

 and membranous, 3-nerved, deeply bifid, awn long, stout and hispid. Peri- 

 gynia broader and longer than the glumes, elliptical, narrowed to the base 

 and upwards into a rather long and stout 2-toothed beak, strongly nerved, 

 unequally biconvex; margins serrate above. Stigmas 2. III. Car., hi., 

 109, t. 333 ; Rook. fit. Handbk. N.Z. Flora, 314. C. goyeni, Petrie, Trans. 

 N.Z. Inst., xiv., 363. 



South Island. — Not uncommon in mountain districts. Nelson — Graham 

 Kiver, Wangapeka Valley, Mount Owen, etc. : T.F.C. Canterbury— Akaroa, 

 Raoul ; Southern Alps, Sinclair and Haast ; Broken Biver basin, Upper 

 Waimakariri ; Lakes Tekapo and Pukaki ; T.F.C. Otago— head of Lake 

 Wakatipu, D. Petrie ! ; near Lake Wanaka, J. Buchanan ! Altitudinal 

 range from 250-3,000 feet. 



Although C. raoulii is one of the most distinct species of the genus in 

 New Zealand, there has been considerable misconception respecting it, and 

 by many it has been confounded with C. testacea. I therefore give revised 

 descriptions of both species. Its main characters lie in the loose open 

 habit, comparatively broad flat leaves, in the terminal spikelet being always 

 partly female, and in the elliptical strongly nerved and serrate perigynia, 

 which are unequally biconvex, and narrowed both upwards and downwards. 

 In C. testacea the perigynia are much broader, plano-convex and almost 

 hemispherical, and in addition to the very different habit the terminal spike- 

 let is never mixed with female flowers. 



20. C. devia, Cheeseman, Trans. N.Z. Inst., xv., 301. 



South Island,— Mountain districts in Nelson, not uncommon above 2,500 

 feet: T.F.C. 



Allied to C. testacea, but readily distinguished by its different habit, 

 stouter culms, rigid and coriaceous grooved leaves, very stout clavate male 

 spikelets, and more turgid biconvex perigynia, with a shorter broader beak 

 and entire margins. 

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