Sapium.] cxxii. euphorbiace^ (prain), 1015 



Kimuenzn, Gillet, 1653! iiauda, Oddon, 3581! Kwango district; Dyumii VHlley, 

 Gentill Kimpaka, Vanderyst ! Mailibi, Sapin ! and without precise localities, 

 Allard, Z^Z\ Jespersen ! Angola: Lutida, Malange, 5«cA»ey, 151! Marques, 

 205 ! Q-ossweiler, 968 ! 985 ! Chimbang, Buchner, 512 ! 



Soutb Central. Belgian Congo: Lake Leopold IL district; Ibali, Laurent ! 

 Kutu, Laurent \ near Lake Leopold 1 1., Body! Kasai ; Lusambo, Laurent! 

 Lukombi, Sapin! Lubi, Sapin! Hena-Makima, Sapin! Bieuge, Sapin, C 26 ! 

 Kaboko-Komba, D'OiiiZam! Mukenge, Po^^e, 1385 ! 1407! 1411! 1416! 



Very nearly allied to and possibly not specifically distinct (rom S. oblongifolium. 

 Pax. The ample material preserved in the Brussels herbarium shows that 

 *S'. cornutum as originally described by Pax passes insensibly into tlie form dis- 

 tinguished as var. coriaceum, awH thattiiese in turn are identical both with S. Poggei 

 and with 6'. xylocarpum, and its var. lineolatum. Pax, In Engler's Pflanzenreich, 

 Euphorb.-Hippoman. figure 46a, inadvertently cited as the fruit oi a, genuinum is 

 in reality tiiat 0^7, Poggei. The fruit figured is immature; the full grown fruit 

 is as described under S. xylocarpum, var. lineolatum. Pax, and as figured under 

 fig. 46b, though as a rule the horns on the valves of the cocci are larger than in the 

 fruit there figured, 



8. S. oblongifolium, Fax in Engl. Jahrh. xix. 1 14, m ohs. A small 

 shrub, everywhere glabrous ; rootstock rather slender, ascending or 

 horizontal ; stems several from the crown of the rootstock, slender, woody, 

 simple or sparingly branched, perulate at and above tlie base ; scales coria- 

 ceous, oblong, obtuse. Leaves shortly petioled, at first membranous, soon 

 firmly papery, ovate or ovate- lanceolate or lanceolate, obtuse or sub- 

 acute, base subcordate or rounded or shortly wide-cuneate, minutely 

 auriculate-cordate but not glandular at the point of junction with the 

 petiole, margin entire or obscurely toothed, l|-8 in. long, J-lJ in. wide^ 

 medium to dark green above, paler beneath; lateral nerves D-IO on 

 each side, secondary reticulation distinct; petiole stout, \-\ in. long, 

 channelled above ; stipules linear-lanceolate, ^-J in. long, deciduous. 

 Spikes terminal on the twigs, IJ-^i in. long, appearing after 

 the leaves, with many rather lax shortly pedicel led male dowers 

 above and usually a solitary distinctly pedicelled basal female flower, 

 occasionally female tiowers 2 or ; male bracts short, wide, somewhat 

 distinctly 3-lobed, denticulate, 2-glandular at the base, each 3-5- 

 llowered; female bracts 1 -flowered, 3-lobed ; male pedicels distinctly 

 articulate, slightly exceeding the bracts; female pedicel \ in. long. 

 Male : Calyx 3-partite ; lobes triangular, denticulate, somewhat un- 

 equal. Stamens 3, shortly exserted. Female : Calyx deeply 3-sect ; 

 lobes denticulate, with either a gland or a small ligule at each sinus. 

 Ovary glabrous, with 2 long lanceolate horns on the back of each carpel ; 

 styles 3, shortly connate at the base. Capsule deeply 3-dymous, when 

 fully ripe f in. across, with a thin smooth or reticulately wrinkled epicarp 

 and a very thick woody endocarp, breaking up rather tardily into three 

 2-valved cocci, each coccus with a triangular winged appendage about 

 J in. long. Seeds rather wide-ovoid, smooth, dark brown. — Pax in Engl. 

 Pflanzenr. Euphorb.-Hippoman. 247. S. suffrutkosum, Pax in Baum, 

 Kunene-Samb. Exped. 284, and in Engl. Ptlanzenr. Euphorb.-Hippo- 

 man. 247. Excvecarw, oblongifolia, Mull. Arg. in Jouin. Bot. 1864, 3o/, 

 and in DC. Prodr. xv. ii. 1214 ; Hiern in Cat. Afr. PI. Welw. 1. 98b. 



