518 CXLIV; GRAMINER. 
25. ISCHZEMUM,, Linn. 
(Spodiopogon, Trin. Meoschium, Beauv. Hologamium, Nees.) 
Spikelets in pairs in the alternate notches of the articulate flexuose 
rhachis of simple — 1 sessile with 1 hermaphrodite terminal flower 
and a male one below it, the prim pases and either similar Of 
with only one hermaphrodite or one or two male flowers or reduced to 
empty glumes, the spikes either solitary or D or more, e, sessile or n nearly 
dropogon. e all a 
istinct. Grain enclosed in the glumes but free from them. 
is chiefly Asiatic with a few tropical African and American oer 
Ẹ: Mueller ‘follows pti in qu it ume Andropogon, whilst others divide i 
al many genera as there are spec 
Sessile spikelet 2-flowered, awnless. Pedicellate spikelet 
1-flowered, awned. Outer pong membranous. Spikes 2. 8 
1. I. truncatiglumw. 
— both 2- flowered anda awned. Outer glume e rigid. 
rarely 4, es often appressed so as to 
M liko 1 ‘cylindrical sp : 
Nodes glabrous. Stem tall is ^ 2. I. arundinaceum. 
Nodes bearded, Stems 2 to 3 ft. bigh. "Awn 'exsertod. 
Spikes 3 to 4 in., spikelets 4 to 5 lines long 
Spikes 1} to 3 in., spikelets about : — long 
Nodes bearded. Stems creeping r diffuse, shortly 
I. triticeum. 
I. australe. 
be 
ascen 
Glabrous. Rhachis of we spike not ciliate. Outer 
glume winged at the top. Awn concealed in the g 
Spikelet . 5. I. muticum. 
Leaves hairy. _Rhachis of the spike ciliate, ‘Outer 
glume wrinkled o shortly : 
exse 6. I. ciliare, 
ee Tage go 2-flowered, awned. _Pedicellate  spikelot 
or By Sega any flow 
Spikes 2. Habit of L phe . 7. I. decumbens. 
pike solitary. P edicellate- spiele without flowers. 
Spike slender. Sessile spikelets flat, closely ap- 
pressed, pectinate e e i IAk No 
awn . . LI 
— rigid. Articles of the rhachis and pedicels 
on , convex, smooth and shining resembling : 
le spikelets 9. I. fragile, 
"io solitary, Pedicellate spikelets lanceolate, flat- 
tened, with 2 male fl 
8. I. pectinatum. 
. 10. I. laxum. 
f 
. I. truncatiglumis, F. Muell. Herb.—A glabrous erect g rass 0 
about 2 ft. or rather more, feed E d. Spikes 3 to 5 
ane odes no d 
sessile and clustered at the end of a long peduncle, 1j to 2j in- 
