OLII. OYPEEACE-E. 1783 



with one edge next the rhachis, about half the length of the glume. — Sibth. Fl. 

 Gr. t. 47 ; Host. Gram. iii. t. 72 ; Eeichb. Ic. Fl. Germ. t. 278 ; Bceckel. in 

 Linnsea, xxxv. 438. 



Hab.: Bowen Downs, Birch. 



The typical form belongs to the Mediterranean region and chiefly to its western portion, 

 but there are tropical African, Mascarene and a few East Indian specimens which, like the 

 Australian one above mentioned, appear to be referable to the true C. flarescens rather than to 

 the C. glohosiii. It is possible however that the Australian ones may prove to be an anomalous 

 form of C. eragrostis without the dark colour on the glumes. The Brazilian C, Olfenianus, 

 Kunth, is scarcely to be distinguished from the typical C.fiavescena. — Bentli. 



4. C. globOSUS (globose), All.; Bceckel. in Linnaa, xxxv. 458; BentJi. Fl. 

 Aiistr. vii. 260. A tufted perennial, the stems from under 6in. to above 1ft. high. 

 Leaves shorter, very narrow, sometimes almost setaceous, the lower sheaths often 

 broad. Spikelets 8 or 4 together or frequently more numerous, in clusters in an 

 umbel of 3 to 6 rays, either all short or the outer ones 1 to 2in. long, or the 

 whole reduced to a single sessile cluster. Involucral bracts 2 or 8, of which 1 or 

 2 longer than the inflorescence. Spikelets linear or linear-lanceolate, flat, rather 

 acute, pale or dark brown, from 4 to 6 lines long and scarcely 1 line broad, 12 to 

 40-flowered, the rhachis not winged. Glumes rather narrow, obtuse or almost 

 acute, the keel pale-coloured, faintly 3-nerved, the sides brown, nerveless, some- 

 times with a light-coloured margin. Stamens usually 2. Styie 2-cleft. Nut 

 obovate or almost orbicular, biconvex with one edge next the rhachis, much less 

 than half the length of the glume. — Reiohb. Ic. Fl. Germ. f. 279 ; C. vulffaris, 

 Sieb. in Kunth, Enum. ii. 4; F. v. M. Fragm. viii. 260; C. ftavescens, Thw. 

 Enum. Ceyl. PI. 842, and other Indian authors. 



Hab.: Lockyer and Brisbane Eiver, Hartmann. 



The species is widely distributed over tropical and temperate Asia, extending to the 

 Mediterranean region, and is also in East tropical Africa and the Mascarene Islands. 



6. C. unioloides (Uniola-like), R. Br. Prod. 216 ; Benth. Fl. Austr. vii. 260. 

 A perennial, tufted or with a short creeping rhizome. Stems 1 to 2ft. high, 

 triquetrous. Leaves flat but narrow, rather rigid, mostly shorter than the stem, 

 with long brown sheathing bases. Umbel compound, of 3 to 6 rays, the longest 

 1 to Sin, long, the spikelets 4 to 12 together in clusters or short loose spikes. 

 Involucral bracts 2 to 4, 1 usually much longer than the inflorescence. Spikelets 

 oblong-lanceolate or almost ovate, flat but rather thick, 4 to 8 lines long and 

 about 2 lines broad, of a shining yellowish-green or pale brown, 12 to 20-flowered, 

 the rhachis not winged. Glumes broad, rather acute, with a prominent greenish 

 keel, the sides smooth and nerveless. Stamens usually 8. Style 2-cleft. Nut 

 broadly obovoid or orbicular, biconvex with one edge next the rhachis, much less 

 than half the length of the glume.— C. bromoides, Willd. MS.; Kunth, Enum. ii. 

 8 ; C. angulatus, Nees ; Bceckel. in Linnsea, xxxv. 465 ; C. lanceus, F. v. M. 

 Fragm. viii. 259, not of Thunb. ; C. luteolus, Bceckel. in Flora, 1875, 82 (from 

 the character given). 



Hab.: Shoalwater Bay, ii. Brown ; Brisbane Kiver, F. v. Mueller. 



The species extends over Nepaul and the eastern provinces of India, it is also in Brazil and 

 in South Africa. 



6. C. polystachyus (spikes numerous), Bottb. Deicr. et Ic. PL 86, 1. 11. /. 1 ; 

 Benth. Fl. Austr. vii. 261. A tufted perennial. Stems from under 1ft. to above 

 2ft. high, triquetrous but not very stout. Leaves narrow, much shorter than the 

 stem, with short broad sheaths. Inflorescence usually crowded into a dense 

 sessile head or cluster with numerous spikelets, but sometimes forming a loose 

 irregular umbel approaching that of some varieties of C. rotmuhts. Involucral 

 bracts 2 to 4, of which 1 or 2 longer than the inflorescence. Spikelets narrow- 

 linear, flat, rather acute, 4 to 6 lines long and under 1 line broad, usually pale- 

 brown, 20 to 80-flowered, the rhachis angular and often slightly winged. Glumes 



Pabi VI, D 



