282 PATAGONIAN EXPEDITIONS : BOTANY. 



base attenuate, white, ultimately purplish ; its margins yellowish, fim- 

 briate ; rostrum short. 



E. Fuegia. (Compare C. atropicta Steud.) 



17. C. FUSCULA d'Urv. (1825). (C. indecora Kth., C. inconspicua fuscula.] 



Style 3-cleft. Culms triangular, glabrous. Leaves shorter than the 

 culms, narrowly grass-like, plane, rigid, edge scabrid. Male spike solitary ; 

 female spikes about in 4's, little remote, cylindraceous-oblong. Utricles 

 ovate-oblong, attenuate-rostrate, nerveless, rusty, glabrous, angles scabrid 

 upwards. Scale round-elliptical, mucronate. Rostrum truncate, cleft 

 behind. 



Differs from C. involucrata Boott by bracts long, mucronate-awned, 

 utricles green and minutely and densely fuscous-punctulate. (Speg.) 



S. Patagon., by Gregory Bay and Rio Sta. Cruz; Falldands; Fuegia. 

 N. and E. Fuegia. (Dusen.) 



1 8. C. GAYANA Desv. (C. divisa Huds.) 



Style 3-cleft. Root creeping, strongly fibrous. Culm 30-60 cm. tall, 

 erect, trigonal, smooth, striate. Leaves plane, linear, acuminate, rough- 

 edged upwards, shorter than culm. Male spike solitary, cylindraceous ; 

 female spikes 3, short-pedunculate, few-(5-io)flowered ; bracts sheathing. 

 Utricles ovate, obtusely trigonal, longer than the ovate-obtuse brownish 

 scale. Rostrum short. 



(Eur. ; W. Asia ; New Mex. ; Chili.) 



C. GAYANA DENSA Kiikenth. 

 S. Patagon. (Nordensk.) ; N. Fuegia (Dusen). 



19. C. GERMANA Boott. 



Style 3-cleft. Culm 35 cm. high, obtuse-angled, glabrous, 2-3-leaved. 

 Leaves sheathing, as long as the culm, triquetrous-acuminate, the keel 

 and edges scabrid. Bracts sheathing, the upper setaceous. Spikes 4-6, 

 fuscous, rusty ; one or two terminal male ; the others female, thick-cylin- 

 drical, dense-flowered ; the upper sessile, erect ; the lower stalked, nod- 

 ding. Utricles elliptic, whitish, equalling the awned oblong scale. 



W. Patagon. ; Cape Tres Montes. 



