Cyperus.] CLII. OYPEEACE^. 173^ 



and sometimes with a dark spot or with a not very prominent nerve in the centre 

 as in C. trinerris. Stamens 2 or 3. Style 3-cleft. Nut ovoid-triangular, about 

 half the length of the glume. 

 Hab.: Maroochie River, Bailey. 



Bentham states that this siiecies may possibly prove to be a variety of C. trinervis with the 

 inflorescence of C. eiicrcis, but the habit is somewhat different from botli. 



17. C> castaneus (chestnut-coloured), Willd.: Kicnth, Enum. ii. 21 ; Benth, 

 VI. Anstr. vii. 367. A small tufted annual, the stems rarely above 4in, high and 

 sometimes under lin. Leaves setaceous, shorter or rarely longer than the stem. 

 Spikelets numerous, in dense clusters either solitary and sessile, or 2 or 3 lateral 

 ones on peduncles or umbel- rays of i to fin. Involucral bracts 2 to i, setaceous, 

 mostly longer than the inflorescence. Spikelets linear, flat, of a rich brown, i. to 

 6 lines long and scarcely above ^ line broad, about 12 to 20-flowered, the rhachis 

 not winged. Glumes lather narrow, the very prominent keel produced into a 

 recurved point, shorter however than in the two following species, with a more or 

 less distinct nerve on each side, the sides or njarginal appendages nerveless, 

 brown, terminating often abruptly below the recurved point. Stamen usually 1. 

 Style 8-cleft. Nut narrow-oblong, obtusely 3-angled, more than half the length 

 of the glume. — Boeckel. in Linnaea. xxxv. 49(5; (.'. squarrosim var. stenocarpiis, 

 F. V. M. Fragm. viii. 262. 



Hab.: Dry Beef Creels, Leichhardt ; Camooweal, T. P. Keys. 



The species is in the East Indian Peninsula, in Ceylon, and in Silskim. 



18. C> CUSpidatus (cuspidate), //. B. et A'.; Kuntli. Knuiii. ii. 23 ; Benth. Fl. 

 Aiisti; vii. 267. A small tufted annual, resembling U. caistancux and C. squairosus 

 in habit, but the clusters of spikelets not so dense, and the glumes different. 

 Stems mostly 2 to 4in. long. Leaves very narrow or setaceous, sometimes as 

 long as or longer than the stem. Clusters of spikelets solitary and sessile or in 

 an umbel of few rays. Involucral bracts 2 or 8 longer than the inflorescence. 

 Spikelets linear, spreading, from a pale green to a rich, brown, 3 to 6 lines long, 

 scarcely above -!, line broad, with 12 to 20 or even more flowers, the rhachis not 

 winged. Glumes rather narrow, prominently 3-nerved, the keel or dorsal nerve 

 produced into a long recurved or spreading point, the sides bordered by a 

 nerveless brown or hyaline margin terminating often abruptly below the recurved 

 point. Stamen usually 1. Style 3-cleft. Nut obovoid but narrower than in 

 C. squarrosiis, prominently B-angled. — Boeckel. in Linntea, xxxv. 496 ; C, 

 sguarrosus, F. v. M. Fragm. viii. 262, but not of Linn., and not the var. 

 stenocarpus. 



Hab.; King's Creek and Herbert Creek, Boi»)»«H. 



The species is widely spread over tropical Asia and Africa, extending northwards to S. China, 

 and is also abundant iu South and Central America east of the Andes. 



19. C> squarrosus (squarrous), Linn. Amun. Acad. iv. 303 and Spec. 

 PL 06 edxi.stpi. Pluken. ; Benth. Fl. Aiistr. vii. 268. A small tufted annual, the 

 stem rarely above 4in. and sometimes under lin. high. Leaves mostly shorter 

 than the stem, in some specimens \h line broad and tapering to a fine point, in 

 others very narrow from the base. Spikelets numerous, in dense ovoid or globose 

 heads either solitary and sessile or in an umbel of few rays, rarely lin. long. 

 Involucral bracts 3 or 4, of which 1 or 2 much longer than the inflorescence. 

 Spikelets flat, oblong or linear, 2 to 3 lines long, 10 to 20-flowered, the rhachis 

 not winged. Glumes rather narrow, 5 or 7-nerved, tapering into a long recurved 

 point, without any or scarcely any nerveless margin. Stamen usually 1. Style 

 8-oleft. Nut narrow-obovoid or oblong, . prominently 8-angled, varying from 

 rather broad and under half the length of the glume, to narrow and longer than 

 the half.— C. amtotMs, Eottb. Desor.. et Ic.Pl. 23, t. 6, f. 1 ; Kunth. Enum. ii. 



