Erythrococca. | CXXII. EUPHORBIACEX (PRAIN). 869 
petioled, membranous, narrow-ovate, acuminate, base cuneate, margin 
remotely and shortly toothed, 13-24 in. long, 3-1 in. wide, dark green, 
paler beneath, glabrous except on the nerves above, densely pubescent on 
the nerves, sparingly so elsewhere beneath; petiole pubescent with 
spreading hairs, #—-} in. long; stipules unmodified, hyaline-scarious, 
minute. Flowers small, in peduncled racemes; peduncles slender, 
pubescent, males $ in., females 1 in. long ; pedicels glabrous, males } in., 
females 1, in. long ; bracteoles small, ovate. Male calyx green, glabrous, 
globose-conic in bud ; lobes 4, firmly membranous, Stamens 54; outer 
10, the rest central; filaments much shorter than the anthers; glands 
minute, hirsute, rhomboid, all inter-staminal. Female calyx 2-lobed. 
Ovary glabrous, 2-celled ; stigmas minute, suborbicular, suberect, smooth, 
at the apex of a thick columnar obovoid style 3-4 times as long as them- 
selves. Disk shallow urceolate, shortly widely 2-lobed. Capsule and 
seed not seen.—Claoxylon columnare, Miill. Arg. in Flora, 1864, 437, 
and in DC. Prodr. xv. ii. 776. 
Lower Guinea. Princes Island: Mann, 1139! 
Very closely allied to Z. welwitschiana, and with almost identical female flowers, 
but readily distinguished by the smaller, pubescent leaves. The male flowers of the 
two differ considerably, those of E. welwitschiana being hardly distinguishable from 
those of EZ. oleracea ; those of EH. columnaris closely approaching those of #. Poggei. 
33. E. Poggei, Prain in Ann. Bot. xxv. 623. Shrub; twigs pubes- 
cent with soft spreading hairs; bud-scales persistent. Leaves short- 
petioled, membranous, narrow-ovate, acuminate, margin irregularly and 
closely crenate-dentate, 2-24 in. long, 1 in. wide, dark green, paler 
beneath, hispidulous on both surfaces especially on the nerves beneath 
with spreading hairs; petiole hispidulous, } in. long ; stipules unmodi- 
fied, hyaline-scarious, minute. Flowers small, in peduncled racemes ; 
peduncles slender, hispidulous, 1-1} in. long; pedicels glabrous, } in. 
long; bracteoles subulate, ;1, in. long. Male calyx green, glabrous, 
globose-conic in bud; lobes 4, membranous. Stamens 60-64; outer 10, 
the rest central; filaments much shorter than the anthers; glands 
minute, hirsute, rhomboid, all inter-staminal. Female flower and 
fruit not seen.—Claoxylon Poggei, Prain in Kew Bulletin, 1911, 93. 
C. columnare, Engl. in Sitz. Preuss. Akad. Wiss. xxxviii. (1908) 829 ; 
Th. & Hel, Durand, Syll. Fl. Congol. 656 ; not of Mill. Arg. 
Lower Guinea. Lower Congo,: between Dembo and the River Kwango, 
Butaye ! Stanley Pool district ; near Lazaret, Vanderyst ! 
no Central. Belgian Congo: Luulaba-Kasai district ; Mukenge, Pogge, 
! 
Owing to the absence of female flowers the affinity of this species remains 
doubtful, but from the great similarity which the male flowers bear to those of 
BE. columnaris it is best placed provisionally near that species, from the male of which 
it only differs in having a hispidulous in place of an adpressed pubescence and in 
ving longer bracteoles. 
_ 34. E. atrovirens, Prain in Ann. Bot. xxv. 623. Shrub 3-5 ft. 
high ; twigs pubescent; bud-scales persistent. Leaves short-petioled, 
membranous, oblong or rarely wide-ovate, acuminate, base narrow- to 
