FLORA OF ADEN. 
b9 1 
mucro. Spikelets many, 3-5-flowered, spreading at right angles to the 
rhachis, up to | inch long. Glumes divaricate ; lower involucral glume 
ovate, acute, inch long ; upper involucral glume ^ inch long 
(excluding the awn), suborbicular, the midnerve produced into a usually 
curved awn often as long as or sometimes longer than the glume ; floral 
glumes gibbously ovate, up to -|-inch long, mucronate or awned ; pales 
rather shorter than its glume* ovate-oblong, obtuse or 2-fid. Anthers 
about ^-inch long. 
Grain subglobose, reddish, very rugose, ^-inch in diameter. 
Locality : — Flag-staff on top of Shum Shum Range, Goldmore Valley 
(Defl.) ; great valley between Steamer Point and town (Marchesetti) ; 
without locality (Hooker, Thomson). 
Distribution : — Widely spread throughout tropical and subtropical 
regions (Tunis, Algeria, S. Italy, Sicily, Greece, Syria, Arabia* Egypt, 
Nubia, Abyssinia, Sind, Deccan, Konkan, etc.) 
16. Enneapogon Desv. 
Perennial, rarely subannual ; blades usually narrow, often convolute; 
ligules reduced to a line of hairs. 
Panicle contracted, more or less spike-like, elegantly bristly-plumose 
from the numerous awns. Spikelets 3-flowered ; rhachilla disarticulat- 
ing above the glumes, minutely scaberulous or almost smooth. Lowest 
floret hermaphrodite, the intermediate male or barren, the uppermost 
rudimentary, minute. Glumes 2, persistent, membranous, acute or 
obtuse or minutely truncate, 3-6 or sub-7-nerved. Hermaphrodite 
floret : valve very broad, rounded on the back, rather firm, more or less 
villous, 9-nerved, 9-awned ; awns subulate, equal or subequal, plumose, 
ciliate or scaberulous ; callus minute, short, pale oblong, 2-keeled, 
exceeding the valve ; lodicules 2, minute, cuneate, fleshy } stamens 3 ; 
ovary glabrous ; styles distinct, short ; stigmas laterally exserted, loosely 
plumose. Second floret like the lower, but the valve about J as long, 
glabrous, the ovary rudimentary or suppressed. Uppermost floret 
reduced to a tuft of minute awns. 
Grain oblong, dorsally more or less compressed ; hilum punctiform, 
subbasal ; embryo large, occupying J or more of the front. 
Sjoecies about 6. 
Distribution : — In the dry and warm regions of the Old World and 
in Australia, one in Western North America. 
1. Eimeapogon bracliysiackyus Stapf in This.-Dyer FI. Cap. VII, 
654. 
