378 CLVI. CYPERACEH (CLARKE). [ Mariseus. 
Hairy. Spikes cinnamon-straw-coloured . ll. W. pilosulus, 
{ [Inflorescence umbellate. 
Whole plant including the glumes minutely 
pubescent . “ : : : . 13. WM. psilostachys. 
Whole plant glabrous. 
Leaves 4-1 in, broad . : : < . 12. M. Taylori. 
Leaves ;\, in. broad or less, 
Glumes mucronate . . : . 15. MM. vestitus. 
Glumes muticous, hardly acute. 
Spikelets compressed, leaves much wither- 
ings =< Z . 14. MW. leptophyllus. 
Spikelets exactly livear-cylindric ‘ . 16. M. concinnus. 
}{Spikelets ripening only l nut. (Cfr. also MU. remotus.) 
Inflorescence in 1 head. 
Spikes 3-1, congested. Nut broadly obovoid. 
' Spikelets and glumes scarcely acute. . 17. M. bulbocaulis. 
Spikelets and glumes acute, rather larger . 18. M. plateilema. 
Spike 1 (apparently). Nut linear-oblong. 
Bracts suberect, much dilated at the base . 19. M. cirewmcelusus. 
Bracts divaricate or deflexed, scarcely dilated 
at the base. 
Basal leaf-sheaths torn into much soft fibre 20. M. mollipes. 
Basal leaf-sheaths hardly at all fimbriate . 21. UW. globifer. 
Inflorescence a simple umbel. Leaves with scarious 
margins in their lower half : : . 22. M. albomarginatus. 
eee Ev-Mariscus.—Base of the stem not much thickened, but covered by sheaths 
foliaceous in texture, neither scarious nor marcescent. 
| Umbellati.—Spikelets green or reddish, ultimately pallid, maturing 1-2 (rarely 3) 
nuts. Nut-bearing glumes approximate, suberect, wrapped round the nut (except in 
M. deciduus). Lowest empty glume lanceolate or mucronate, hardly long-setaceous 
(except in M. flavus). Nut often 3 (rarely only 4) the length of the glume. 
Stem, with upper parts of the oe — and 
shortly white hairy. 2 . 37. WM. albopilosus. 
Stem, and whole plant, glabrous. 
Glumes, even before the nut is ripe, aba hardly 
imbricate s . 36. WM. deciduus. 
Glumes suberect, adpressed, margins often enclosing 
the rhachilla, 
Spikes deep chestnut-red, in one head . 3 . B32. M. Kerstenii. 
Spikes lurid or blackish-green, in one head. . 85. WM. Soyauxit. 
Spikes from green or white to straw-colour or 
yellowish or brown, mostly umbelled. (These 
ten species might be treated as nine varieties 
of M. sieberianus.) 
Lowest empty glume reduced to a bristle froma 
lanceolate base ; . 34. M. flavus. 
Lowest empty glume lanceolate, or " mucronate, 
not long-setaceous. 
Spikelets “often with 1 (or 1-2) nuts (exeept 
in M., sieberianus, var.). 
Spikelets very slender, often all deflexed in 
fruit . 24. M. umbellatus. 
Spikelets thicker; rarely deflexed in fruit, 
Spikelets-acute. 
