GRAMINE® (Stapf). 31 
rets 2, Continuation “id rhachilla minute or bristle- 
rarely 4-fid, both or ail 4 divisions jo aggat bank ; 
XXXV. eto haat Bs 
of t 
outer lobule Laat and more or less adna' 
like. Lob valve 2-, 
or only he ae with the 
XXXVI. Pentameris.—Florets 2, as in aire regan Grain globose-ellipsoid ; 
pericarp crustaceous; seed “ ee or si 
onia, or many, "tien uppermost gradually reduced. 
Lobes of the pig de larger, heath or ies triangular or lanceolate, with or with- 
out an awnli Sik 
XXXVIIT. serkanen <~iiipiteates s falling entire with a part of the disarticu- 
lating pedicel ; lowest valve without, the rest with side bristles. 
ARUNDI INE. Florets 2 to many, enveloped by — long hairs, 
Tribe 5. 
7 a bg either from a long and slender callus or from the bac the valves. 
pi and valves membranous, often hyaline, awnless or Aric awned from 
e tips. 
exe Arundo.—Lowest floret like the rest, hairy from the back of the 
valve. 
XL. Phragmites.—Florets heteromorphous; the lowest g or barren, the rest 
, hairy from the tetas slender callus, otherwise glabrous 
ii. Floret 1. (XLIL.—XLIX.) 
Tribe 6. AGROSTEX. Floret 1. Rhachilla not eeten beyond the 
floret or only as a more or less distinct point or bristle. Valve membranous (in 
the South African species) or thinly her tgeeced not or ean 7 pes nged when 
t rarely 3-nerved, all the nerves or the outer 
if 
: e very t 
side nerves often slightly exe arrent, parallel or at least not anastomosing; awn 
Present, from the back, rarely from the truncate 
= Sabie covered with long soft hairs. 
Sey enres Dae 
Xt Polypo ates awned, fae “gtx a i notch or sinus. 
Panicle spiciform, oblong 
times longer than the vy 
wee e 7. ae PE. Floret1, Rhachilla not continued beyond the sap 
Me ve hardened when mature, tightly e abe ats a - fruit ; nerves joining o 
osely quccnching at the tip; awn terminal, rarely 
ey ristida.— 4 wins ~ from the ire tip, or one, phy cir below and 
<i ranched above, very rarely quite simple Ligule a fringe of hai 
“dd . Stipa.—Floret aie or linear-oblong ; awn solitary, eae kneed and 
xctisted below the knee. Ligule satan ous, 
I. zopsis.—Floret ens Reon: in &tipa, awn fine, straight, very 
caducous, or 0, Ligule membrano 
Tribe ZOYSIEA. Mat i 
: ature esi falling entire we singly, or in 
pg ane mn Rhachi pg ies ee beyond the floret. Glunies equ 
bg wer much smaller Valve small, diately membrano 
Herved. Spikelets in pf eg Splatt panicles or racer 
sna Perotis.—Spikelets Tews ingly. Glumes equal, long aw 
wa Tragus.—Spikelets falling in clusters of 2-4. Upper (outer) me beset 
hooked spines or short ae bristles. 
b Awns, if present, never kneed and twis'ed below the knee. (L.—XCVII.) 
i. Valves 3-nerved, rarely I-nerved. (See also Elcusine). (L.—LXVI.) 
She SPOROBOLE A. Glumes and valves very similar. 
avery rarely continued beyond the floret. Valve membranous, acute 
