Maprounea.] CXXII. EUPHORBIACEE (PRAIN). 1005 
South Central. Belgian Congo: Kasai; Illongonga, Sapin ! 
Mozamb. Distr. German East Africa: Muanza; Salanda, Fischer, 528 
{obtusa)! shores of Lake Victoria Nyanza, Holtz, 1624 (obtusa)! Portuguese East 
Africa; near Beira, in open woods, Swynnerton, 1503! 1734! Maganja, Sim. 
Rhodesia: Batoka country, 3000 ft., Kirk (vaccinioides)! 
Also in South-East Africa. 
Var. cinnamomea, Pax & K. Hoffm. in Engl. Pflanzenr. Euphorb.-Hippoman. 
179. Bark bright reddish-brown. Leaves oblong or ovate-oblong, narrowed to a 
blunt apex. Bract-glands usually 2-partite, sometimes simple. Flowers pale rose, 
basal females sometimes subsessile. Seeds not seen. 
North Central. Adamawa: Alhadjin Galibu, 1650 ft., Lederinann, 3721! 
Var. orientalis, Pax & K. Hoffm. in Engl. Pflanzenr. Euphorb.-Hippoman. 179. 
Bark grey. Leaves ovate, obtuse or narrowed to a blunt apex. Bract-glands 
simple, cylindric. Flowers pale yellow. Seeds black. 
Mozamb. Distr. Zanzibar: on dry hillsides, Sacleux, 1712! German East 
Africa: Usaramo; Kangani, Stuhlmann, 6597! Dar-es-Salaam, Busse, 24! 3147! 
Engler, 2140! 3226! 3243! Holtz, 28! Lukimwa River, Busse, 972! Rondo 
plateau, Busse, 2569! Kamba-Yamate, Holtz, 1019! and without precise locality, Bohm! 
Var. leucosperma, Pax & K. Hoffm. in Engl. Pflanzenr. Euphorb.-Hippoman. 
179. Bark grey. Leaves oblong or ovate-oblong, narrowed to a blunt apex. Bract- 
glands simple. Flowers pale-yellow. Seeds pale greenish-yellow. 
Upper Guinea. Cameroons: Labare, 3600 ft., Ledermann, 2258! Bakari, 
3400 ft., Ledermann, 2288 ! 
North Central. Darbanda: Senoussi country; Kaga Toulou, 1800 ft., 
Chevalier, 7393 ! 
M. africana, Miill. Arg.,is a species the characters of which have always been 
obscure. It was based in the first instance upon specimens collected in Angola by 
Welwitsch, and issued as n. 401 and 401s. The plant referred to 4018 is, however, 
Spirostachys africana, Sond., and not a Maprounea at all; under 401 has been 
issued a mixture of flowering specimens of Spirostachys africana, Sond., with 
fruiting specimens of the particular Maprounea distinguished by Pax & Hoffmann 
as M. africana, var. benguelensis. It is owing to this circumstance that Miiller has 
described the spikes of M. africana as lateral, sessile and, when young, cylindric, 
Those statements, accurate as regards the Spirostachys from which Miiller’s descrip- 
tion was taken, are not applicable to the flowering spikes of M. africana, which 
are always terminal on specialised branchlets and when young are shorter as com- 
pared with their diameter than they are at later stages. We have failed to find a 
good character whereby to distinguish var. obtusa, Pax, from typical M. africana, 
and we maintain var. orientalis, Pax & K. Hoffm., on the authority of its authors 
with a feeling that the communication of fuller material may render its recognition 
unnecessary. On the other hand, it is not impossible that var. leucosperma, Pax & 
K. Hoffm., may ultimately prove, as M. gracilis has proved, to deserve separate 
recognition; while var. cinnamomea, Pax & K. Hoffm., may also, when more fully 
known, call for separate treatment. 
80. SPIROSTACHYS, Sond, in Linnea, xxiii. 106. 
Flowers monecious or occasionally polygamous, apetalous. Disk 0. 
Male: Calyx small, deeply 4-5-lobed; lobes slightly imbricate. 
Stamens 3, far exserted ; filaments connate in a narrow slender tube ; 
anthers free, extrorse, dehiscence longitudinal. Rudimentary ovary 0. 
Female: Calyx deeply 3~5-lobed. Ovary 3-celled, less often 2-celled ; 
