47 
° Stoloniferous. 
§ Female spikelets few-flowered, bracts scale-like 
C. supina (141). 
S$ Female spikelets many-flowered, bracts leafy. 
/ Low, robust: leaves flat, 2—4 mm. broad; the stalk of 
the lowest spikelet long and capillary; mostly 2 stigmas 
C. puila (151). 
// Tall, slender; leaves involute, 1—3 mm. broad; the 
stalk of the lowest spikelet short; mostly 3 stigmas 
C. rotundata (150). 
6. Utricles nearly beak-less. 
+ Female spikelets erect short-stalked, dense-flowered. 
° Male spikelet very small, approximated to the upper female 
one; style not exserted beyond the utricle C. holostoma (115). 
° Male spikelet well-developed, remote from the female ones; 
style usually exserted beyond the utricle at the maturity 
C. stylosa (116). 
++ Female spikelets more or less drooping, long-stalked, rather 
lax-flowered. 
° Seales elongated, awned; bracts leafy . . C. magellanica (121). 
°° Seales not elongated, acute or obtuse. 
$ Cespitose, bracts leafy, scales dark, acute or obtuse, spike- 
lets rather many-flowered........ C. podocarpa (117). 
8$ Stoloniferous, bracts short. subulate. 
/ Leaves flat, 1—3 mm. broad, bright-green; scales dark, 
obtuse; spikelets few-flowered ..... C. rariflora (122). 
// Leaves involute, 0,5—1 mm. broad, glaucous; scales brow- 
nish, acute or obtuse; spikelets rather many-flowered 
C. limosa (123). 
** Bracts long-sheathing. 
a. Beak rather long, more or less two-toothed, margins scabrous; 
utricles lanceolate to ovate. 
+ Female spikelets few- and lax-flowered, light-brown; beak with 
membranous margins, indistinctly toothed C. capillaris (146). 
++ Female spikelets dense-flowered, dark-brown or blackish; beak 
distinctly two-toothed. 
® Seales as long as the utricles; utricles ovate C. ustulata (145). 
° Seales much shorter than the utricles; utricles lanceolate 
C. tristis (143). 
8. Beak rather short, entire, margins not scabrous; utricles rounded- 
trigonous or globose. 
+ Glaucous; utricles finely papillose, inflated, faintly nerved 
C. panicea (134). 
+? Bright green; utricles smooth, non-inflated, nerve-less 
C. sparsiflora (135). 
Terminal spikelet male (seldom female at the base); stigmas 2. 
Cc. 
C. pilulifera vy. deflexa (137). 
1. "Uttriclessharnyaiew-m ane mieten eke belie i tccuteike 
2. Utricles glabrous. 
* Utricles shining, with short beak. 
a. Low, robust; leaves flat, 2—4 mm. broad; the stalk of the lowest 
spikelet long and capillary; mostly 2 stigmas C. pulla (151). 
