40 F- P ax - — Euphorbiaceae-Acalypheae-Chrozophorinae. 



glabrescens et inferne omnino glabratus. Petiolus 2 — 8 mm longus; limbus 4 — 7 cm 

 longus, 4 — 15 mm latus, in foliis inferioribus obovatus, in ceteris lineari-lanceolatus 

 acutus, mucronulatus, basi acutus vel obtusus, serrulatus, nervis zh. pubescentibus ex- 

 ceptis glaber; costae secundariae utrinque 5 — 11, subrectae; stipulae ovatae, acumi- 

 natae, 1 x ji — 2 mm longae. Spicae cum pedunculo 4y 2 — 8 cm longae, bisexuales, inferne 

 florem Q unicum proferentes, ceterum (j*; rhachis cum pedunculo 1 — 3 cm longo pubes- 

 cens, non glandulosa; bracteae utriusque sexus lanceolatae, acuminatae, pilosae, (j 1 1 mm 

 longae, Q paulo longiores; pedicelli q 1 1 mm longi, Q primo subnulli, demum sub 

 fructu 1 mm attingentes. Sepala <J ovato-lanceolata, acuta, 2 mm longa; petala 5, 

 inaequalia, 3 longiora 3 mm, 2 breviora 2 mm longa, obovata, vel oblanceolata; sta- 

 mina 10; ovarii rudimentum cylindricum ; sepala Q 5, inaequalia, longiora fere 3 mm 

 longa, ovata, acuminata, pubescentia, parce glandulifera ; calyx Q laciniis 3 — 5 mino- 

 ribus extus auctus; petala subaequalia, calycem subaequantia vel aequantia, obovata, 

 obtusa, mox decidua; ovarium dense glandulis fusiformibus vestitum; styli abbreviati, 

 ad medium in lacinulas 4 — 9 partiti. Capsula 6 mm longa, 7*^ mm ^ a ^ a « 



Sudanische Parksteppenprovinz: Nordkamerun, Garua (Ledermann 

 n. 481 Ol, 4980 !). Kordofan, in Sümpfen am Berge Arrasch-Cool (Kotschy n. 69, 

 11 3 !). 



Ostafrikanische Steppenprovinz: Kilimandscharo, Nyika (Volkens n. 37!). 

 Ussambiro (Stuhl mann n. 85 1!). 



18. C. senegalensis Müll. Arg. in Linnaea XXXIV. (1863) 153; in DG. Prodr. XV. 

 2. (1866) 756. — Caperonia serrata Baill. Adansonia I. (1860) 66. — Argythamnia 

 senegalensis 0. Ktze. Rev. gen. II. (1891) 594. — Annua, inermis; caulis ad 70 cm 

 altus, breviter ramosus, pilis tenuibus, patentibus molliter hispidulus, inferne glabres- 

 cens. Petiolus 2 — 5 mm longus; limbus 9 — 13 cm longus, 8 — 12, rarius ad 22 mm 

 latus, anguste lanceolatus vel lineari-lanceolatus, rarius oblongo-lanceolatus, acuminatus, 

 basi subobtusus, distanter serratus, subtus in costis hispidulus, supra glaber, membra- 

 naceus; costae secundariae utrinque zb 10, subflexuosae; stipulae ovato-lanceolatae, 

 2V2 mm longae. Spicae cum pedunculo 2V2 — 6 cm longae, bisexuales, inferne flores 

 Q 1 — 2 proferentes; rhachis cum pedunculo 1 1 / 2 — 2 cm longo pilosa; bracteae q? 

 breviter trianguläres, acutae, I mm longae, Q subtrilobae, pilosae, 2 rnm longae; pedi- 

 celli (J 1 vix 1 mm attingentes; flos § subsessilis. Sepala q? 5, subaequalia, ovata et 

 ovato-lanceolata, acuta, pilosa; petala inaequalia, 3 longiora, fere 2 mm longa, obovata, 

 obtusa, 2 multo breviora, lanceolata; stamina 10; sepala Q 5, inaequalia, majora ovata, 

 ad 3 mm longa, acuminata, extus pilosa et basi glandulifera; calyx lacinia exteriore 

 auctus; petala 2 l / 2 mm longa, calyce breviora, obovata; ovarium setosum et glandulis 

 fusiformibus vestitum; styli ad medium in lacinias 5 — 6 partiti. Capsula tricocca, 5 mm 

 longa, 6 mm lata. 



Sudanische Parksteppenprovinz: Senegambien (Lecard n. 210!, Lepri- 

 eur, Perrottet n. 737). Am Niger (Barter!). Nordkamerun, Garua (Leder- 

 mann n. 3310!, 4542!), Rei Buba (Ledermann n. 412l!), Diangey (Ledermann 

 n. 4456!). 



Westafrikanische Waldprovinz: Togo (Warnecke n. 430!). Ghasalland, 

 Abu Guruns Seriba (Schweinfurth n. 4256!). 



Sandige Grassavanne, überschwemmte Savanne. 



19. C. Rutenbergii Müll. Arg. in Abh. naturw. Ver. Bremen VII. (1880) 25. — 

 Argythamnia Rutenbergii 0. Ktze. Rev. gen. II. (1894) 594. — Annua, inermis; caulis 

 fistulosus, striatus, circ. 5 mm crassus, arrecto ramuliger, superne pilis subadpressis 

 sericeus, demum dz glabrescens, setulis destitutus. Petiolus dt 5 mm longus; limbus 

 in foliis inferioribus 8 cm attingens, 10 — 12 mm latus, in summis 4 — 5 cm longus, 

 lineari-lanceolatus, distanter argute serrulatus, basi et apice acutus, secus costas pilosus ; 

 costae secundariae utrinque 8 — 10, subflexuosae; stipulae lineares, subulato-acuminatae, 

 3 mm longae. Spicae bisexuales, foliis breviores vel ea vix aequantes, cum pedunculo 

 6 — II cm longae, aut omnino q?, aut basi' florem g unicum gerentes; rhachis cum 



