Tragia. 75 



Südafrikanische Steppenprovinz: Deutsch-Südwestafrika, Ovanibo, Otavi, 

 am Rande des Bergwaldes (Dinter n. 753!). 



73. T. Preussii Pax in Engler's Bot. Jalub. XIX. (1894) <02; Prain in Fl. Trop. 

 Afr. VI. ^. (1913; 989. — T. Winkleri Pax in Englers Bot. Jahrb. XLIH. (<909) 



8 2. — Volubilis; caules graciles, breviter pubescentes, demum glabrati, ramosi. Pe- 

 tiolus 2V2 — 6 cni longus, subglaber; Hmbus 8 — 20 cm longus, 31/2 — *V2 cm latus, 

 oblongo-lanceolatus vel oblongus, acuminatus, a medio basin et apicem versus altenuatus, 

 basi anguste cordatus vel subhastatus, margine subinteger vel leviter undulatus, utraque 

 pagina glaber; stipulae lanceolatae, acuminatae, patentes, 2 — 3 mm longae. Racemi 

 oppositifolii, puberuli, aut simplices, 2V2 — 8 cm longi, aut in ramulis lateralibus pani- 

 culati; rhachis panicularum aphylla, tantum stipulas profercns; inflorescentiae basi flores 

 Q 1 — 2 et rf numerosos gerentes; bracteae (^ anguste lanceolatae, \ mm longae, 

 Q ovatae, obtuse subtrilobae, 2 mm longae, omnes uniflorae; pedicelli l^j^—^ mm 

 longi, (J' ebracteolati, basi articulati, Q bibracteolati. Flos (^ 2V2 "^i» latus; sepala 

 3 — 4, ovata, acuta, puberula; stamina 3; anlherae fere sessiles. Sepala Q. 6, ambilu 

 obovata, post anthesin paulo tantum acerescentia, parte rhachiali lanceolata, lobis ulrin- 

 que 3, rarius 2, brevibus, inaequalibus ; ovarium parce setosum; stjli basi connati. 

 Capsula pai'ce setosa, 6 mm lata. Semina globosa, atrobrunnea, dilutius mai'morata. 



Westafrikanische Waldprovinz: Südnigerien, Oban (Talbot n. 624); 

 Kamerun, Viktoria, Urwald zwischen dem Kirchhof und dem Moliwe Vorwerke (Winkler 

 n. 343!); Buschwald bei der Barombistation (Preuss n, 467!). Belgisch Kongo, 

 Kasai, Mukenge (Pogge n. 1396!). 



Nota. Planta pilis stimulosis deslituta vldetur, sed cl. Preuss in sched. adnotavit: >Die 

 Blätter brennen bei Berührung, ähnlich wie Brennessel«. 



74. T. glabrescens Pax in Engler's Bot. Jahrb. XIX. (1894) 4 04, in Engler, 

 Pflzwelt. Ostafr. C. (1895) 240; Prain in Fl. Trop. Afr. VI. {. (1913) 988. — Volu- 

 bilis; caules graciles, ramosi, subglabri. Petiolus 1^2 — 3 cm longus, parce setosus ; 

 Jimbus 2V2 — 5 cm longus, 11/2 — 3 cm latus, triangulari-ovatus, acuminatus vel acutus, 

 aperte cordatus, crenato-serratus, glaber vel ad nervös parcissime setosus; stipulae tri- 

 angulari-ovatae, acutae, 3 mm longae. Racemi oppositifolii cum pedunculo Y2 — '^^m longo 

 pubescente et parce hispido 2 — 12 cm attingentes; bracteae uniflorae, ovalo-lanceolalae, 

 (^f 1 1/2 mm, 2 3 mm longae; pedicelli bracteis breviores, bibracteolati. Sepala (^ 3, 

 oblonga, acuta, 2 mm longa, subglabra; »tamina 3; filamenta antheris longiora. Sepala 

 Q 6, ambitu ovata, acerescentia et indurata, sub fructu 5 mm longa, utroque latere 

 3 — 4-lobulata, parte rhachiaU obovata, lacinulis lanceolatis longe albo-setosis ; ovarium 

 setosum; styU ad medium vel ultra in columnam puberulam connati. Capsula parce 

 setosa, 6 mm lata. Semina globosa, viridi-grisea, rubro-marmorata, 3 mm diametientia, 

 tomentello-albido-squamulosa. 



Ostafrikanische Steppenprovinz: Britisch Ostafrika, Duruma, Chamtei 

 (llildobrandt n. 2345 1), Magi Chumoi (Kässner n. 466). Usambara, Doda (Holst 

 n. 2984!). 



75. T. insuavis Prain in Kew Bull. (1912) 237, in Fl. Trop. afr. VI. 1. (1913) 



9 88. — Volubilis; caulis gracilis, juvenilis puberulus, estimulosus. Petiolus 2^/2 — ^ cm 

 longus, puberulus et parce stimulosus; limbus 7 — 10 cm longus, 3^/2 — 572 cm latus, 

 ovatus vel oblongus, acutus vel acuminatus, basi aperte cordatus, palmatinervius, irre- 

 trulai-iter serratus, utraque pagina in nervis parce pubei'ulus et parcissime stimulosus: 

 stipulae ovato-lanceolatae, patentes, 4 mm longae. Racemi terminales in ramulis late- 

 raübus aphjllis vel paucifoliatis, cum pedunculo brevi 2 — 3 cm longi, breviter pubes- 

 centes, estimulosi ; bracteae ovatae, acutae, 3 mm longae, margine pubescentes et glan- 

 duligerae, uniflorae, Q quam (J* latiores; pedicelli 1 — 1 Yo mm longi. Flores (^ 2 mm 

 lati; sepala 3, orbicularia, apiculata, puberula; stamina 3; filamenta antheris angustiora, 

 antheras vix aequantia. Sepala Q. 6, acerescentia, sed vix indurata, 8 mm longa, utroque 

 latere 5 — 6-lobulata, parte rhachiali late oblongo-lanceolata, lacinulis Iriangularibus, 



