Caperonia. 41 



pedunculo db 1 y 2 — 3 cm longo filiformis, subadpresse sericea, eglandulosa; bracteae q^ et 

 Q 1 mm longae, lanceolatae, acuminatae, pubescentes; pedicelli bracteis paulo longiores, 

 rf sub flore articulati, pubescentes; sepala tf 5, 2 mm longa, lanceolato-ovata, acuta, 

 ultra medium connata; petala 5 inaequalia, 3 longiora, 3 mm longa, spathulato-lanceo- 

 lata, 2 breviora, 2*/ 2 mm l° n £ a > oblanceolata, obtusa; stamina 10; ovarii rudimentum 

 integrum; sepala Q 5 inaequalia, 4 majora, 4y 2 mm l° n o a > ovato-lanceolata, acuta, 

 I brevius, 2'/ 2 mm longum, omnia extus pilosa et basi setulosa, ciliata, eglandulosa; 

 calyx Q laciniis exterioribus 1 — 3 praeditus; petala 5, calycem aequantia, spathulato- 

 obovata, acuta; ovarium glandulis fusiformibus vestitum; styli ultra medium in lacinias 

 dz 5 partiti; carpidia dorso sparse echinata. 



Westmadagaskar, in Sümpfen (Rutenberg!). 



Nota. Species affinis C. serratae africanae. 



Sect. 2. Aculeolatae Pax et K. Hoffm. 



Perennes vel suffruticose. Gaules fere semper aculeolati. Folia penninervia vel 

 rarius palmatinervia. Inflorescentiae bisexuales vel unisexuales. Calyx Q lacinulis ex- 

 terioribus destitutus. 



20. C. hystrix Pax et K. Hoffm. n. spec. — Caules basi lignescentes, inferne ramosi 

 vel subsimplices, densissime aculeolis tenuibus, rectis et setis elongatis, glanduligeris, sub- 

 horizontalibus et in partibus junioribus pilis adpressis vestili, demum praeter aculeolos 

 et setas sparsas glabrescentes. Petiolus 2 — 5 mm longus; limbus 6 — 9 cm longus, 15 — 

 28 mm latus, e basi ovata lanceolalus, basi obtusus vel subcordatus, apice acutus, argute 

 serratus, rigide membranaceus, basi 3- vel rarius 5-nervius, supra setosus, subtus se- 

 tosus et secus costam et costulas aculeolatus; costae basales validiores dimidium limbi 

 attingentes; stipulae — 3 mm longae, triangulari-ovatae, acuminatae. Flores monoici. 

 Racemi bisexuales, cum pedunculo 2 — 6 cm longi, basi flores Q 1 — 3 gerentes, ceterum 

 rf vel rarius omnino q?; pedunculus cum rhachi pubescens et glandulosus, vix setu- 

 losus ; bracteae utriusque sexus db 31/j mm longae, trianguläres, acuminatae, glandu- 

 losae, glanduloso-dentatae; pedicelli (f et Q 1 — 1 */ 2 mm longi. Sepala q? 5, sub- 

 inaequalia, lanceolata, acuminata, 2 y 2 mm longa, glandulosa; pelala circ. 3y 2 mm longa, 

 obovata, obtusa vel emarginata, inter se aequalia; stamina 10; ovarii rudimentum in- 

 divisum, sulcatum; sepala Q parum inaequalia, 4 mm longa, glandulosa et glanduloso- 

 dentata; petala calycem aequantia, ovata, acuta; ovarium glandulis fusiformibus creberri- 

 mis et pilis setulosis vestitum; styli basi connati, ad medium fere palmatim laciniati; 

 laciniae 4 — 6. Capsula 7 — 8 mm lata, setosa, calyce ampliato, ad 15 mm diametiente 

 suffulta, brevissime stipitata. Semina 3 mm diametientia, subglobosa, apiculala, fo- 

 veolata. 



Südbrasilianische Provinz: Brasilien, Rio Grande do Sul, Porto Alegre, 

 auf wüstem, halbsumpfigem Terrain, hinter der Vorstadt Navegantes (Rein eck u. Czer- 

 mak n. 139!). 



Nota. Species G. cordatae affinis, sed habitu et characteribus essentialibus diversissima. 



21. C. cordata St. Hü. Hist. pl. remarq. Bresil. (1824) 245; in Mem. Museum 

 Paris XII. (1825) 343; Müll. Arg. in DG. Prodr. XV. 2. (1866) 753; in Fl. Bras. XI. 

 2. (1874) 317; Chodat et Hassler in Bull. Herb. Boiss. 2. ser. V. (1895) 502. — 

 Ditaxis cordata Baill. Adansonia IV. (\ 865) 272. — Argythamnia cordata 0. Ktze. Rev. 



* gen. II. (1891) 594. — Caules e rhizomate lignoso, fusiformi plures, simplices, erecti, 

 30 — 60 cm alti, superne striato-angulosi, pilis et aculeolis variis praediti et insuper setis 

 elongatis, rigidulis, rectis, subhorizontalibus, saepe copiosis armati. Petiolus 2 — 3 mm 

 longus; limbus 3'/ 2 — 12 j / 2 cm longus, 2 — 6y 2 cm latus, ovatus vel lanceolato-ovatus, 

 basi obtusus vel saepius cordatus, apice in foliis inferioribus obtusus, in reliquis acumi- 

 natus, argute serratus, rigide membranaceus, basi 5 — 7-nervius, supra subsetoso-pilosus, 

 subtus in costis costulisque setis rigidis ornatus et nonnunquam in costa aculeis veris 

 armatus, insuper subtus secus nervös breviter villoso-pilosus, rarius supra et sublus 



