Synadenium. | CXXII, EUPHORBIACE# (BROWN). 
463 
and probably more numerous than have been supposed, their great resemblance to 
one another causing them to be overlooked. 
Leaves finely pubescent above or on both sides; perianth 
rudimentary or very minutely 3-crenate. 
Leaves 33-44 in. long, with a distinet wing-like keel 
to the midrib beneath. 
Leaves pubescent all over on both sides; keel on the 
midrib toothed . - : é : : 
Leaves pubescent above, glabrous beneath, except on 
the midrib; keel on the midrib not toothed 
Leaves 43-6 in. long, pubescent above, glabrous and 
without a wing-like keel to the prominent midrib 
beneath A ° - . . . . : 
Leaves glabrous on both sides. 
Midrib with a wing-like or very acute keel beneath at 
the base or all along; perianth rudimentary or 
very minutely 3-crenate. 
Leaves 3-5 in. long; capsule (where known) not 
exserted much beyond the involucre. 
Peduncles branching at the apex into‘an umbel of 
4-5 undivided rays : c ° : : 
Peduncles umbellately or subumbellately branch- 
ing at the apex into 3-5 rays 2-3 times forked. 
Cyme compact, with the rays all arising from 
the same point or level c c . : 
Cyme lax, with the rays closely placed but arising 
one above another : : . . 
Leaves mostly 5-6 in. long (some smaller) ; cymes 
lax; capsule exserted 2-3 lin. beyond the in- 
volucre . = = . 
Midrib prominent and obtuse or 
without a wing-like keel. 
Leaves not more (usually much less) than twice as 
long as broad; umbels with undivided 1-flowered 
rays : ; : 
Leaves 2-4 times as long as broad. 
Umbels with the 3-5 primary rays umbellately 
divided into 3-4 secondary rays; perianth 
rudimentary . . : : : 
Cymes dichotomously 2-6 times forked. 
Perianth a rudimentary 3-crenate rim; styles 
deeply bifid . . ° ° “ 
Perianth with linear, subulate or filiform lobes 
3-1 lin. long. 
Leaves cuneate-oblanceolate, tapering from 
near the apex to the subsessile base; styles 
subacute beneath, but 
thickened at the apex, not bifid : els 
Leaves lanceolate, tapering for about } of 
their length into the petiole; styles bifid . 
jor) 
~~ 
4. 
5. 
@ 
vs) 
10. 
12. 
. S. molle. 
. 8. Kirkit, 
S. gazense, 
S. Cameronit. 
S. compactum. 
S. carinatum. 
S. glaucescens. 
S. Volkensit. 
. S. umbellatum. 
S. Grantit. 
S. angolense, 
S. cymosum, 
pe & Cameronii, V. Z. Br. in Kew Bulletin, 1901, 133. Stems 
clustered, 7-8 ft. high, terete, fleshy at the young parts, glabrous. 
aves somewhat fleshy, subsessile or shortly petiolate, 3 in, or more 
long,"14 in, or more broad, only one seen, cuneately obovate, shortly 
