46 P- Pax. — Euphorbiaceae-Dalediampieae. 



II. Stipulae bractearum involucralium lanceoiato-ovatae, 



hirsutae 79. D. Friedridisthalii. 



b. Bracteae involucrales difformes 80. D. Chevalieri. 



C. Species nobis ignota, veris. in hanc sectionem perlinens . Si. D. Bernieri. 



65. D. dioscoreifolia Poepp. et End). Nov. gen. spec. III. (1845) 20; Müll. Arg. 

 in DC. Prodr. XV. 2. (1866) 1248, in Fl. Bras. XI. 2. (1874) 659; Pax in Pittier 

 Prim. Fl. Costaric. II. (1900) 334. — Volubilis; ramuli graciles, sulcato-striati, dz pubes- 

 centes. Petiolus 2 — 8 cm longus, more ramulorum vestitus; limbus S'/j — '6 ^^ longus, 

 4 — 1 \ cm latus, triangulari-ovatus, acutus vel breviter acuminatus, basi aperte cordatus 

 et ima basi breviösime in petiolum contractus, denticulatus vel subinteger, palmatinervius, 

 membranaceus, pubescens vel glabrescens, stipellis filiformibus auctus; stipulae 5 — 6 mm 

 longae, lineari-lanceolatae, acuminatae. Pedunculi axillares, solitarii vel gemini, i — 

 6 cm longi; bracteae involucrales triangulär!- vel rhombeo-ovatae, acuminatae, in petio- 

 lum contractae, indivisae, inciso-dentatae, 2 — 3 cm longae, 1 V2 — 2 cm latae, mem- 

 branaceae, pallide rubellae, pilosae, 5 — 7-costatae, mox deciduae; stipulae saepe inaequales, 

 ovatae vel lanceoiato-ovatae, ad 1 mm longae, persistentes, reflexae; bracteae florigerae 

 latae, erosae, glabrae, Q concavae, subsaccatae. Calyx q^ parce pilosus; stamina circ. 15. 

 Sepala Q 6 — 12, longe pinnatifido-lacinulata, rachi lineari, lacinulis utrinque 4 — 6, 

 longe pilosis, non capilatis, sub fructu indurata, 7 — 10 mm longa; glandulae inter 

 sepala parvae, breviter cylindricae; ovarium sericeum; columna stjlaris 4 mm longa, 

 demum duplo longior, in stigma pileiforme dilatata. Capsula 12 mm lata, 7 mm 

 longa, pilosa, 2 cm longe stipitata. Semina 5 mm longa, irregulariter costulata et 

 rugulosa, dilute brunneo- et badio-marmorata. 



Subäquatoriale andine Provinz. 



Var. u. pubescens Müll. Arg. in DC. Prodr. XV. 2. (1866) 1248, in Fl. Bras. 

 XI. 2. (1874) 660. — R. Ruixiana Klotzsch in Sched. — Folia 51/2— 9 cm longa, 

 subtus pubescentia; petiolus 2 — 3Y2 cdi longus. Sepala sub Capsula 7 mm longa. 



Peru: Tarapoto (Spruce n. 4476!); Ostperu (Ruiz!). Columbien (Hoistonn. 845). 



Var. ß. genmna Müll. Arg. in DC. Prodr. XV. 2. (1866) '249, in Fl. Bras. XI. 

 2. (1874) 660. — Folia intensius viridia, 6 — 16 cm longa, 4Y2 — << ^m lata, subtus 

 glabrescentia. Sepala Q sub fructu 1 mm longa. 



Peru: Maynas (Poeppig n. 1907!, 2163!). Costarica (Pittier n. 12095!, 

 140451, 16045!, Tonduz n. 8277!, 11538!). 



66. D. affinis Müll. Arg. in Linnaea XXXIV. (l8(io) 223, m DC. Prodr. XV. 2. 

 (1866) 1249, in Fl. Bras. XI. 2. (1874) 660. — D. dioscoreifolia Pulle, Enum. vasc. 

 pl. Surinam (1906) 260. — D. nitidula Steud. iYi Sched. — Volubilis, caules ultimi 

 graciles, obscure virides, puberuli, tarde glabrescentes. Petiolus 2 — 3^/2 cm longus, 

 puberulus; limbus 6 — 1 1 cm longus, 3'/2 — 7 cm latus, triangulari-ovatus, acutus vel 

 acuminatus, basi cordatus, minute glanduloso-denticulatus, fere integer, membranaceus, 

 palmatinervius, subtus reticulato-venosus, supra puberulus, subtus incano-tomentellus et 

 in nervis pubescens; stipellae filiformes; stipulae lineares, setaceo-acuminatae, ± 3 mm 

 longae. Inflorescentiae in ramulis aphyllis vel paucifoliatis terminales; bracteae involu- 

 crales 3 cm longae, 2'/2 cm latae, ovatae, acutae, basi obtusae vel brevissime acutatae, 

 denticulatae, pubescentes, valide 9-nerviae, citrinae, satis firmae; stipulae lineares; brac- 

 teae florigerae breves, truncato-subtrilobae, Q. glanduloso-denticulatae, (^ eglandulosae. 

 Calyx evolutus 2 V2 ™ni lät^s. Sepala Q 10 — 12, pinnatifido-lacinulata, parte rhachiali 

 lineari, lacinulis utrinque 5 — 7, elongalis, apice glanduloso-capiluligeris, post anthesin 

 accrescentia, 8 mm longa; ovarium hispidum; columna stylaris gracilis, apice in stigma 

 pileiforme dilatata, 10 — 11mm longa. Capsula 1 cm fere lata, hispida, pilis deci- 

 duis minute verruculosa. Semina 4Y2 "^dq longa, subglobosa, a latere paulo compressa, 

 griseo- et badio-marmorata. 



Provinz des Amazonenstroms: Brasilien, Amazonas, Manaos (Spruce 

 n. 1116!, Ule n. 5984!); Para (Burchell n. 9243, Hoffmannsegg). 



