Muriscus. | CLVI. CYPERACEH (CLARKE). 379 
Spikelets spreading in fruit 5 . 23. WM. sieberianus. 
Spikelets adpressed, erect in fruit . 25. M. sublimis. 
Spikelets subobtuse © . - 31. M. macer. 
Spikelets with 3-2 nuts (see also M. sieberi- 
anus, var.). 
Spikelets white : : 5 : . 80. UM. tomaiophyllus. 
Spikelets greenish-white to yellowish or 
brownish. 
Spikelets usually with 2 nuts. 
Spikes long-cylindric, often 14 in, 
long . : : : . 26. M. nossibeensis, 
Spikes usually nearly as broad as long 33. M. macrocarpus. 
Spikelets usually with 3 nuts, 
Glumes obtuse, submucronate. 
Spikelets subtetragonous . . 27. M. tanyphyllus, 
Spikelets terete . : : - 29. M. Myrmecias. 
Glumes much acuminate . : . 28. M, Phillipsie. 
Spikelets reddish ; spikes long cylindric ina simple 
umbel., 
Spikelets } in, long, perfecting 1 nut : . 38. UM. Rohl fsii. 
Spikelets } in. long, perfecting 2-3 nuts . . 39. M. procerus. 
++ Subremoti.—Spikelets green, ultimately _ pallid ; 
maturing 3-2 nuts. Nut-bearing glumes remote, the top 
of one a little overlapping the base of the next R . 40. M. thomensis, 
wT Ti urgiduli—Spikelets straw-coloured to brown, thicker than in + and ff, 
nearly terete, 1-6-flowered. Robust plants with large compound umbels. 
Glumes approximate, erect-adpressed even in fruit. 
Spikelets densely packed . . . ‘ . 41, ML. rufus. 
Spikelets many, but distinct . . . . . 43. M. albescens. 
Glumes less close together, looser in fruit. 
Leaves flat. ‘ : ; : ‘ ‘ . 42. WM. umbilensis. 
Leaves much enrolled (at least as seen dry) ° . 44. MUM, durus. 
THT Flabelliformes. Spikelets linear, not flattened, dull green, 4—10-flowered ; 
glumes remote. 
Bracts 3 in. broad, 3-nerved; umbel large compound . 48. WM. trinervis. 
Bracts less than 2 in, broad. ; 
No horizontal rhizome. : : 
Spikelets 4-4 in, long, with 3-8 nuts ‘ . 45, HH. flabelliformis, 
Spikelets 2 in. long, with 5-8 nuts . . . 50. M. luridus. 
Rhizome horizontal. 
Leaves 4-2 in. broad. 
Spikelets 4 in. long, with 4 nuts . . . 46. eurystachys. 
Spikelets 4 in. long, with 7 nuts . : . 47, M. aximensis. 
Leaves 1-1in. broad. : . 49. M. foliosus. 
Httt Pseudo-Cyperee. Spikelets 4-10-flowered, oblong or lanceolate, more or 
a compressed (not linear terete). Glumes much imbricate, not (or hardly) 
emote, 
Rhachis of spikes hairy . s ‘ i i . 55. M. pseudopilosus. 
Rhachis of spikes glabrous. 
Fertile glumes with long recurved mucro . ° 
Fertile glumes with short (or no) mucro. 
. 51. M. squarrosus, 
