Pyenocoma. | CXXII, EUPHORBIACEE (PRAIN). 959 
5. P. brachystachya, Pax in Engl. Jahrb. xliii. 82. A shrub, 
2-3 ft. high; branches stout, soft. Leaves clustered at the ends of the 
twigs, sessile, thinly to firmly chartaceous, oblanceolate-oblong, acute or 
acuminate, narrowed from the upper third to the very acute base, 
margin entire, 12-20 in. long, 34-44 in. wide, glabrous on both surfaces. 
Racemes shortly peduncled, from the axils of the upper leaves ; rhachis 
densely pubescent; bracts ovate, obtuse, concave, densely pubescent ; 
pedicels pubescent, slender, $ in. long, 1-3 toa bract. Male: Sepals 3, 
ovate-triangular, acute, densely pubescent externally, reflexed in flower, 
in. long. Stamens numerous; filaments slender, } in. long. Female: 
Sepals 5, oblong-lanceolate, acute, densely pubescent externally, 1 in. 
long. Ovary 3-celled, pubescent, each cell with two short triangular 
dorsal horns ; styles 3, densely pubescent, connate in their lower third. 
Fruit not seen. 
Upper Guinea. Southern Nigeria: Lagos; Abeokuta, at Obumo Rock, Willen, 
149! Cameroons: Victoria, Winkler, 367. 
We have not seen the original specimen, collected by Dr. Winkler, on which 
this species is based. The specimens collected by Millen agree as regards foliage 
with P. macrophylla, but as regards pubescence with 2, cornuta, of which P. 
brachystachya may be only a form. The racemes are much shorter than in either 
of macrophylla ov P. cornuta, 
6. P. macrophylla, Benth. in Hook. Niger Fl. 508. Shrub, 8 ft. 
high; branches stout, soft. Leaves clustered at the ends of the twigs, 
Sessile, thinly to firmly chartaceous, oblanceolate-oblong, acute or 
acuminate, narrowed from the upper third to the very acute base and 
there sometimes abruptly contracted into a winged pseudo-petiole 3-4 in. 
long, margin entire, 12-20 in. long, 34-44 in. wide, glabrous on both 
surfaces. Racemes peduncled, from the axils of the upper leaves ; 
rhachis thinly pubescent ; bracts ovate, obtuse, concave, densely 
adpressed grey-silky externally; pedicels glabrous or sparingly pubes- 
cent, very slender, 3-1 in. long, 1-3 to a bract. Male: Sepals 3, 
Ovate-triangular, acute, glabrous except at the acute bearded tips 
externally, reflexed in flower, 4 in. long. Stamens numerous; filaments 
slender, } in. long. Female: Sepals 5, oblong-lanceolate, acute, adpressed- 
silky externally especially in the upper half, reflexed in flower, + in. 
long. Ovary 3-celled, densely adpressed-silky, each cell with two short 
triangular dorsal horns; styles 3, sparingly hirsute, connate in their 
lower third. Capsule 3-coccous, 3-dymous, } in. ACLOSS ; COCCI 2-valved, 
closely finely velvety externally, each valve with a projecting obtusely 
triangular horn-like wing 2 lin. long and deep. Seeds globose, brown, 
3 in, across.—Miill. Arg. in DC. Prodr. xv. ii. 951; De Wild. Etudes 
Fl. Bas- et Moyen-Congo, i. 278; Th. & Hél. Durand, Syll. Fl. Congol. 
97. P, Zenkeri, Pax in Engl. Jahrb. xxvi. 329. 
Upper Guinea. Southern Nigeria: Oban, Talbot, 699! Cameroons: Lom, 
—1000 ft., Ledermann, 6439! Bodje, Ledermann, 295! Ossidinge ; Abonando, 
300 ft., Rudatis, 96! Bipinde, Zenker, 1251! Batanga, Dinklage, 1371! Fernando 
Po: Vogel, 18! 
South Central. Belgian Congo: Kwango; Dyuma Valley! Gentil! Gillet, 
2843! Eastern Prov. ; near Stanley Falls, Dewévre, 1168! 
