Fhyllanthus,'] cxxii. euphorbiace^ (hutchinson). 725 



49. P. omahakensis, Dinter d; Pax in Engl. Jahrh, xlv. 234. A 

 small annual 2-4 in. high, branched ; stem and branches slender, 

 asperulate. Leaves lanceolate or oblong-lanceolate, mucronate, obtuse 

 and slightly unequal at the base, 3-4 lin. long, 1-1 J lin. broad, purple 

 on the margins, glabrous, without visible lateral nerves ; petiole short, 

 smooth ; stipules subulate-filiform, very acute, J-J lin. long, glabrous. 

 Flowers monoecious, Male flowers solitary or in pairs in the upper 

 leaf -axils ; pedicel very short, glabrous. Sepals C, obovate, rounded 

 at the apex, J lin. long, membranous. Disk-glands ^rounded, smooth. 

 Stamens 3 ; filaments connate to the top ; staminal column swollen 

 towards the base ; anthers free among themselves, cells parallel and 

 dehiscing longitudinally. Female flowers solitary towards the base of 

 each branclilet ; pedicel | lin. long. Sepals G, obovate-oblanceolate, with 

 membranous margins. Disk crenulately lobed. Ovary smooth ; styles 

 slightly connate in the lower part, bilobed ; stigmas globose. Capsule 

 subglobose, \\ lin. in diam. Seeds with about 10 lines on the back. 



Iiower Guinea. German South-west Africa : Otjituos, i)in^cr, 877 ! 



50. P. Chevalieri, Beille in Bull. Soc. Bot, France, Iv. Mem. viii. 

 57. An annual 1J-2J ft. high; stem terete near the base, purple, 

 green towards the apex, angular ; flowering branchlets spreadin^^, 

 angular, glabrous. Leaves narrowly oblong-lanceolate or almost linear- 

 lanceolate, narrowed to the apex, obtuse at the base, |-H in. long, 

 1 J-2J lin. broad, slightly paler on the lower surface ; late'ial nerves 

 indistinct. Flowers monoecious, males geminate and axillary in the 

 lower parts of the branchlets, females solitary in the upper parts, shortly 

 pedicellate. Male flowers small : Sepals 6, ovate. Disk -glands 6, small 

 but distinct. Stamens 3 ; filaments connate, very short ; anther-cells 

 diverging from the apex, dehiscence appearing to be transverse. Female 

 flowers : Sepals G, ovate or oblong-ovate, with a green median nerve, the 

 margins membranous and minutely serrulate. Disk saucer-shaped, 

 spreading, crenate. Ovary lobed, smooth ; styles shortly bilobed, 

 recurved, lobes not swollen at the tips. Capsule depressed-globose, 

 IJ lin. in diam., smooth. Seeds brown, with about 10 longitudinal lines 

 of minute warts on the back. 



Xrorth Central. Wadai : Lake Iro region; Konlfe, Chevalier, ^\%Q\ 



The variety with oblong leaves described by Beille {I.e.) is P. aniarus, Schumach. & 

 Thonn. 



51 . P. mittenianuSy Hutchinson. Stems terete or slightly angular^ 

 glabrous ; branches spreading horizontally, slightly zigzag, narrowly 

 winged on each side, tinted with red in a fresh state, glabrous. Leaves 

 ovate, obtusely pointed, broad and rounded or truncate at the base, 

 |-1J in. long, J-| in. broad, membranous, glabrous on both surfaces, 

 green above, pallid or purplish below ; lateral nerves 5-6 on each side, 

 slender, fading away before reaching the margin, distinct below, very 

 slightly impressed above ; veins very lax, scarcely evident ; petiole 

 J-1 lin. long, rather fleshy, glabrous; stipules subulate-lanceolate, 

 tapered to an acute apex, about IJ lin. long, often purplish, glabrous. 



