270 Gratninece. \Oropetium* 



base, callus naked, palea ovate, margins incurved, keels o or 

 very obscure, glabrous ; anth. minute, shortly oblong, upper 

 fig. glume oval, flat, glabrous or pubescent and ciliate, palea 

 as large as the glume, keels strongly ciliate ; grain of both flg. 

 glumes very minute, fusiform, acute at both ends, pale yellow- 

 brown. 



Marshes in the Central Province, alt. 5000-8000 ft. Spikelets yellow- 

 green. 



Java, Tonkin, China, Madagascar. 



The type (Australian) form of this plant is smaller, with very slender 

 decumbent stems, an almost capillary sparingly branched panicle, and 

 long-pedicelled spikelets, quite like those of the Ceylon variety. 



2. C. perpusilla, Thw. Enum. 373 (1864). 



C. pulchella, vars. gracillima and Gardneri, Fl. B. Ind. vii. 271. C. P.. 

 130 (in part). 



Stems 6-18 in., erect, densely tufted; 1. ■£- 1 by xj-|- in.,, 

 narrowly linear-lanceolate, acuminate, flat, closely striate, 

 glabrous or puberulous above, veins o or obscure, sheaths 

 membranous, hardly auricled, ligule a fringe of fine hairs; 

 panicle ovate, branches few, filiform, smooth, spreading, bear- 

 ing few sessile and pedicelled spikelets; spikelets rtrr in- 

 long, ovate, coloured ; empty glumes orbicular - ovate, I 

 1-5-veined, II 1-9-veined, III and IV ovate-lanceolate, III 

 glabrous or puberulous, callus naked or bearded, palea oblong, 

 faintly 2-veined, anth. half as long as the glume, linear, IV 

 concave, dorsally rounded, margins ciliate below, callus 

 densely bearded, palea linear, keels ciliate; grain oblong, dark 

 red-brown, much larger than in C. pulchella. 



Var. muscosa, Hook. f. C. pulchella, var. perpusilla, Fl. B. Ind. 

 vii. 271. Isachne perpusilla, Wight and Am. in Wight, Cat. n. 2043.. 

 C. P. 130 (in part). 



Stems 3-4 in., densely compacted ; 1. \-% in., filiform, con- 

 volute, mostly recurved; panicle depauperate, rhachis and 

 branches capillary, flexuous ; spikelets very few, sessile or 

 pedicelled, coloured. 



Marshes, alt. 5000-7000 ft. Var. muscosa, foot of Adam's Peak 

 (Gardner), Havamitrya Patana (Trimen). Spikelets pale green or 

 purplish. 



The name perpusilla was adopted by Thwaites from Wight, who 

 applied it to the dwarf state of the plant (var. muscosa), which he 

 referred to Isachne. It is unfortunately misapplied to what is really, 

 in its typical state, much the largest species of the genus, attaining 

 18 inches in height. 



53. OROFETIVM, Trin. 

 A dwarf, very densely tufted, erect annual; 1. short, fili- 

 form; spikelets very minute, i-fld., semi-immersed in the 



