960 CXXII. EUPHORBIACE® (PRAIN). [ Pycnocoma. 
7. P. Chevalieri, Beille in Bull. Soc. Bot. France, lv. Mém. viii. 81. 
Shrub, 7-10 ft. high; branches slender, woody. Leaves clustered 
towards the ends of the twigs, distinctly petioled, firmly chartaceous, 
obovate-lanceolate, acute, narrowed from the middle to the acute base 
which passes into a winged petiole, margin entire, 10-12 in. long, 
34-4 in. wide, glabrous on both surfaces, very finely and _ closely 
puncticulate beneath; petiole below the wing 4-4 in. long. Racemes 
peduncled, from the axils of the upper leaves; rhachis rather closely 
pubescent ; bracts ovate, acute, concave, loosely silky-pubescent 
externally; pedicels slender, pubescent, 4 in. long, 1-3 to a_bract. 
Male: Sepals usually 4, ovate-lanceolate, acute, pubescent externally, 
reflexed in flower, } in. long. Stamens numerous ; filaments slender, 
tin. long. Female: Sepals usually 5, ovate-lanceolate, white-pubescent 
externally, reflexed in flower, 4 in. long. Ovary 3-celled, velvety- 
pubescent ; each cell with two short triangular dorsal horns; styles 3, 
pubescent, connate only in their lower fifth. Capsule 3-coccous, 
3-dymous, 4 in. across; cocci 2-valved, closely velvety externally, each 
valve with a projecting short triangular acute horn, 1-1} lin. long, 
1 lin. deep. Seed globose, brown, } in. across. 
Lower Guinea. French Congo: near the Kemo River, Thollon, 673! Fort 
Possel, Chevalier, 5308! 5367! 10553! Upper Ubangi; Boma, Chevalier, 
5915! Upper Shari; Ngaoura, near Mbelli, Chevalier, 7335! Mpokou, Chevalier, 
10595! Bangui, Chevalier, 10848 ! 
This species in general facies most closely resembles P. minor, Miill. Arg., but is 
readily distinguished by the very different bracts. 
8. P. Thollonii, Prain in Kew Bulletin, 1912, 193. Shrub; 
branches slender, woody. Leaves clustered at the ends of the twigs, 
sessile, thinly coriaceous, obovate-lanceolate, acute or acuminate, nar- 
rowed from beyond the middle to the narrow rounded base, margin 
faintly undulate, 12-15 in. long, 4 in. wide, glabrous on both surfaces. 
Racemes peduncled, from the axils of the upper leaves ; rhachis very 
tinely puberulous ; bracts trapezoid-spathulate, flat, reflexed, glabrous 
everywhere except on the shortly ciliate margins ; pedicels slender, 
puberulous, 4 in. long, 1-3 to a bract. Male: Sepals 3, ovate-triangular, 
acute, very sparingly puberulous or quite glabrous externally, reflexed 
in flower, 4 in.long. Stamens numerous; filaments slender, 4 in. long. 
Female: Sepals 5, ovate-lanceolate, acute, glabrescent or glabrous 
externally, reflexed in flower, } in. long. Ovary 3-celled, pubescent, 
each cell with two dorsal horns ; styles 3, sparingly hirsute, connate 1D 
their lower fifth. Capsule not seen. 
Lower Guinea. French Congo: Ogowe River, Thollon, 842! 
As regards foliage this is hardly distinguishable from P. macrophylla, Benth., bub 
the bracts are altogether different in the two plants, 
9. P. angustifolia, Prain in Kew Bulletin, 1908, 439. | Shrub 
branches rather slender, woody. ‘Leaves clustered towards the an 
of the twigs, subsessile or very shortly petioled, thinly. to firmly 
chartaceous, narrowly oblanceolate or obovate-lanceolate, acute 0} 
