674 CLxxii. OTPERACE^. (C. B. Clarke.) ICladium. 



pprmanionm, Schrad. Fl. Oerm, i. 75, t. 5, fiff. 7. 0. jamaicense, Crantz 

 Inst. i. 362. Sohoenus Marisous, Linn. 8p. PL i. 63. 



Kashmie ; Lake, alt. 5200 ft., Jacjuemoni, &c.— Distbib. Cosmopolitan. 



Glabrous, stoloniferons. Leaves often nearly equalling stem ; teeth on margins 

 and midrib beneath cutting. Panicle 1-2 ft. long or more j corymbs distant, several 

 times corymbosely divided; lower bracts leaf-like. Spikelets usually in globose 

 clusters of 4-12. Jj-i in., young lanceolate, ripe ovoid, uniform brown. Glumes 

 6-7, ovate, concave; 3-4 lower empty, smaller; rhaehilla abbreviated, persistent. 

 Stamens usually 2 ; anthers linear-oblong, crested. Nut scarcely Jj in., hard ; style- 

 base ovoid, large, fiised into nut, of which the cavity is carried up into style-base. 



Subgenus II. MAcaaiKiiiA (G-enus), Vahl Enum. ii. 238. Clusters 

 panioled, mostly sessile at the angles of zigzag branches. Hypogynous 

 hristles small. Nut more or less stalked, rostrate. 



2. C. nxalng'ayi, G. B. Glarhe; stems stout flattened, basal leaves 

 equitant f in. broad, spikelets dark -red, hypogynous bristles slender longer 

 than nut, style 3-fid, nut turgid trigonous shortly stalked, beak long 

 pyramidal hairy. 



Mt. Ophib (Malacca), alt. 4250 ft., Griffith {Kern Distrih. 6304), &c. 



Stems 1-3 ft. Basal leaves several, crowded, often as long as stem ; stem leaves 

 or occasionally 1. Panicle 12-18 in., oblong ; lowest branch often distant. 

 Spikelets i in., ovoid, usually bearing 2-4 nuts. Glumes ovate, tip triangular 

 scarcely acute ; 2-3 lowest empty. Hypogynous bristles 6, their upper half thinly 

 clothed with short upward-pointing hairs. Nnt -^ in. long, on a short obpyramidal 

 stalk. — Very near the West Indian Machcerina restioictes, Vahl. 



3. C. undulatum, Thw. Enum. 353; stem long round-trigonous, 

 leaves basal very narrow, spikelets brown, hypogynous bristles much 

 shorter than nut, style 3-fid, nut sessile ovoid brown, beak very small. 

 Lepidosperma zeylanicnm, Nees in Linnsea, xxxviii. 232. Trioostularia 

 fimbristyloidea, Benih. Fl. Austral, vii. 384. Carpha iunciformis, Boeek. 

 in Linnsea, v. 38, 267. 



Cbtlon, UoUler, Thwaiies, &c. Malat Pbninsuia; Pahang, lUdley. — Dis- 

 tbib. Malaya, Australia. 



Nearly smooth and glabrous. Stem 1-3 ft., somewhat slender, leafless except 

 near base. £eaves 9-18 by \ in., convolute when dry. Panicle 2-12 in., greatly 

 varying in development ; branches flexuose or zigzag; lowest bract leaf-like or short. 

 Spikelets in clusters of 2-5, \ in. long, ellipsoid, 1-2-fld. ; lower flower perfect, 

 nut-bearing. Glumes not distichous ; two lowest smaller, empty. Hypogynous 

 iristles 6, hardly \ nut, setaceous, base dilated white. Nut scarcely J^ in., smooth ; 

 beak depressed, pyramidal or umbonate, not J nut, hairy. — The hypogynous bristles 

 are as of Lepidosperma, but the lower flower producing the nut does not suit that 

 genus. — Bentham {Fl. Austral, vii. 384) considers the Ceylon, Borneo, and Aus- 

 tralian plants here united as three species. 



Subgenus III. Baumea (Genus), Gaud, in Freycinet Voy. Bot. 416, t. 29. 

 Clusters of flowers panicled, mostly sessile at the angles of zigzag branches. 

 Hypogynous bristles 0. Wut nearly or quite sessile, rostrate (in the Indian 

 species). 



4. C. rlparlnm, Benth. Fl. Austral, vii. 405 ; stems obscurely flattened, 

 cauline leaves few obscurely xiphoid or subterete, panicle elongate lax of 

 many spikelets, style 3-fid, nut obovoid round-trigonous smooth, beak 

 small conic minutely hairy. Baumea riparia, Boech. in Linnsea, xxxviii. 

 246. 



