4 F. Pax — Euphorbiaceae-Pereae. 



— Perula arborea Willd. Spec. pl. IV. (1805) 836. — Arbor ad 15m alta; ramuli 

 lepidoti, deinde glabrati. Petiolus i — 1 i/j cm longus, canaliculatus, lepidotus; limbus 

 7 — 16 cm longus, 2V2 — 5 cm latus, oblongus vel obovato-obloDgus, basi et apice 

 acutus vel apice obtusus, coriaceus, nitidus, subtus ± lepidotus, reticulato-venosus. 

 Involucra ad nodos foliorum delapsorum sita, majuscula, exlus lepidota, q^ 3-flora, 

 Q 4 — 5-flora. Calyx (j^ turbinatus, margine acute lobatus; stamina 4 — 5; filamenta 

 basi brevissime connata, plana, brevia; florum ^ rudimenta basi fusca, apice flavia, 

 Ovarium glabrum vel sparsissime lepidotum; stigma trilobum. Capsula 12 mm longa, 

 1 mm lata, obovoideo-globosa, truncato-obtusa, basi brevissime acutata, undulato-rugulosa, 

 caesio-olivacea, sparsissime lepidota. Semina nigra, nitida, leviter coijipressa, apice 

 acutata. 



Subäquatoriale andine Provinz: Panama, Colon, Lomi de la Gloria (Pittier 

 n. 4250!). Columbien, Mariquito (Mutis, Triana n. 3561 !); Malgar (Goudot); 

 Tamarazon, Rio Hadia (Karsten!); Tolima, Dolores, 1000 — 1600 m, offene Busch- 

 waldungen (Lehmann n. 7349!); Bogota, 250 m (Trianai); Jiramene, Llano de 

 St. Martin (Karsten!). 



Einheim. Name: Cucharo, Arguaco. 



3. P. Schomburgkiana (Benth.) Müll. Arg. in DC. Prodr. XV. 2. (1866) 1027. — 

 Peridium Schomburgkianum Benth. in Hook. Journ. Bot. VI. (1854) 323. — Peridium 

 Sehomburgkii Klotzsch in Schomb. Faun. Fl. Brit. Guyan. (1848) 1089 (noraen). — 

 Ramuli cinerei, lepidoti, mox glabrati. Petiolus 5 — 10 mm longus, canaliculatus, lepi- 

 dotus; limbus 6 — 9 cm longus, 2V2 — ^^li c"™ latus, ellipticus vel obovato-oblongus, 

 basi et apice acutus, coriaceus, supra nitidus, subtus saepe glaucescens, subtus dissite 

 lepidotus, leviter reticulato-venosus; costae secundariae utrinque 8 — 9. Involucra 

 ulriusque sexus fasciculata, etiam ad nodos foliorum delapsorum, subdepresso-globosa, 

 extus dense lepidota, (^f 3 — 4 mm lata, pedunculo 5 mm attingente, 3-flora, Q 4-flora. 

 Calyx (^ turbinatus, subinteger, demum profunde fissus; stamina florum lateralium dz 

 5, centralium =b 7; filamenta brevia; florum g rudimenta 3 — 4, basi fusca, apice 

 albida, triloba, glabra; ovarium dense rufo-tomentellum ; Stigmata inciso-paucilobata. 



Cisäquatoriale Savannenprovinz: Britisch-Guyana, Roraima (Rob. Schom- 

 burgk n. 580 !, Rieh. Schomburgk n. 901 , 905!). Franz.-Guyana, LaMana (Sagoti). 

 Nota. P. arboreae valde affinis. 



Sect. 3. Spixia Müll. Arg. 



Spixia Leandro Sacram. in Denkschr. Akad. München VII. (I82l) 231, t. 13; 

 Endl. Gen. Suppl. II. (18 42) 87. — Pera Sect. Spixia Müll. Arg. in DC. Prodr. XV. 2. 

 (1866) 1026 et in Fl, Bras. XI. 2. (»874) 425 ex parte; Benth. in Benth, et Hook. 

 Gen. III. (1880) 3 40; Pax in Engler u. PrantI, Pflzfam. III. 5. (1880) 70 ex parte. 



Involucra unisexualia, bibracteolata. Flores q^ rudimentis florum Q indivisis 

 cincti. Calyx (^f evolutus; filamenta fere libera; stigma indivisum, umbraculiforme, 

 crassum. Indumentum stellatum vel stellato-lepidotum. 



Clavis specierum. 



A Indumentum foliorum stellatum k. P. Leandri. 



B. Indumentum foliorum stellato-lepidotum. 



a. Folia subtus ad costam mediam et in axillis nervorum non 



barbata 5. P. furfuracea. 



b. Folia subtus ad costam et in axillis nervorum barbata . . 6. P. barhinervis. 



4. P. Leandri Baill. Etud. gen. Euphorb. (1858) 434; Müll. Arg. in DC. Prodr. XV. 2. 

 (1866) 1027, in Fl. Bras. XI. 2. (1874) 425. — Spixia heteranthera Schrank in 

 Denkschr. Akad. München VII. (1821) 242. — Spixia Leandri Mart. in Flora XXIV. i. 

 (1841) Beibl. 30. — Arbor 2 — 6 m alta vel frutex; ramuli teretes, juveniles ferrugineo- 

 velutini, demum glabrati. Petiolus 7 — 1 5 mm longus, canaliculatus, pubescens; limbus 



