C R ( ) 8 S O T K O P I S , S ta pf . 
Spikelets laterally compressed, subsessile. mow or less distinctly 2-ranked on 
the rijiid simple 1)ranclies of a panicle : rhachilla slender, disarticulatin;;' above tiie 
uiumes and between the valves. Florets, o to 9, jiert'ect or the u]>|)ermost more or 
less reduced, equalling the glumes or slightly exserted,- or overtopped l)y the awndike 
ti])s of the glumes. 
(iM.MEs suljequal or e(jual, Jiarrow, membranous, strongly 1 -nerved, keeled, 
])ersistent. A'aKes somewhat distant, linear-ol)long in profile, shortly 2dobed, nuicro- 
nate or shortly awned from the sinus, membranous, o-nei'ved, side-nerves sub-marginal, 
sub])ercurrent, I'igidly ciliate, margins intlexed : callus small, haii'w Pales narroAV, 
:^-keeled, slightly shorter than the AaKcs. l^odicules 2, cuneate, small. Stamens o. 
( )\ arv glaln-ous. Styles distinct, \ery slender ; stigmas plumose, laterally exserted. 
( irain oblong, strongly com])ressed from the back, concave or Hat, enclosed by the 
slightly altered Aal\e and pale : embrAo about h the length of the gi-ain : hilum basal, 
punctiform. 
AxxL AE oi{ pekennial: blades usualK' Hat : ligules Inaline: panicle conti'acted 
and narrow, oi- open w ith thv branches s])reading at right angl 's : spikelets rather 
close to \vr\ distant, the u[)permost terminal. 
S])ccics ill Africa and Arabia. 
PLATE 443. 
CrossotroI'is GRAXDiuJ.UMis, Kendle. {VI. (,'a})., Vol. VII., [). 649). 
Nat. Order Gr-unineic. 
pEliENMAi,. — ('l EMs tuftcd, civcl oi' geniculate, k to li b)ot long, glabrous, 
smooth, terete or slighth' coni]iressed, 2-o-no(led, u])per internodi's finally exserted. 
1. EAVES ci'owded near the l)ase : sheaths glabrous, oi- \'erA' rarely with seattered 
tine long s[)ivading hairs, rather fii'iii, striate, the dipper scabrid, the loivcr smooth ; 
ligules trimcate. up to | line long : l)lades linear, shortlv ta]>ering to an acute (often 
subpungent) point, 1 to 2|- inches, b\- 11 to '2^ lines. Hat or subulately conxolute, 
glabrous, scabrid all o\"ei*. 
Px\.xiCLE 4 to (i inches, b\- 4 to !• lines when I'ipe, straight ; rhachis angular, 
scabrid or hispidulous ; branches sim])le, singh' oi- '2-'c> close together, straight, 2 to ') 
inches long, at Hrst erect, at length spreading at right angles, hispidulous, A illous at 
the Itase. 
Spikelets .'> to .VHow(M'e(l. distant b\- more than theii' own length, adpressed, 
shortlv ])edicelled. o.^ to .> lines long : rhachilla minutelv ])ilose. 
(ipi'MES lanceolate, subulate-acuminate, seaberulous. to .") lines long. \ ^d^'es 
ol)long, shoi'tlv bilobed, nuicronate, up to 2 lines long, side-nerves rigidly ciliate. 
Pales truncate', Hnelv [mbescent on the back, keels scal)i'id. Anthei's up to ^ line 
long, (irain narrowly ()l)long. Hat, o\'er 1 line long. 
HabitRt: Natal. Sandy valley near Tugela, lOOU feet alt., Buclianan 21*^) 
4'liis grass was formerly known as Ijisiochlaa (/rdix/ii^/i/nu's, and it would 
seem to be more connnon in the uplands tlian in the coast districts, we ha\'e not met 
with it. The onK' specimen in the Herbarium is Buchanairs 27\). and is a \ery ])oor 
one. but the Directoi' of the Ko^'al (iardensaufl Herl arium at Kew verA' kindly lent 
us a iietter one of IJnchanan's same gathering I'oi- the jiurjiose of comj»lcting the 
draw ing. 
Fiy 1, Lower gluiiio ; 2, upper giiiiue : 3, Aalve : 4, pale ; o, pistil, stamens and lodicules. 
f/i /(//•(/(■(/. 
