% 



34 F. P ax » — Euphorbiaceae-Adrianeae. 



pedicelli tf 3 — 7 mm longi. Calyx (j* aperiens conicus, subacutus, ad medium 5-fidus, 

 extus et intus glaber, 20 — 25 mm longus vel longior, apertus 30 mm longus, flavo- 

 virens, tubuloso-campanulatus; discus et filamenta glabra. Flores Q et fructus ignoti. 



Südbrasilianische Provinz: Paraguay, Abhänge der Sierra de Maracayü 

 (Hassler n. 5132!). 



Nota. Species affinis M. speciosae, sed floribus multo majoribus optime distincta; a M. 

 grandiflora diflert stipulis integris, bracteis latioribus, lloribus breviter pedicellatis. 



17. M. piauhyensis Ule in Notizbl. Bot. Garten Berlin V. No. 41 (1907) 2; No. 41 a 

 (1908) 18, 23 f. \0—Hj f. %C—E. — Arbor 2 — 6 m alta; partes novellae fulvo- 

 tomentosae, mox glabratae. Petiolus 10 — 12 cm longus, glabrescens, levissime viola- 

 ceo-pruinosus; limbus firme membranaceus , supra fusco- viridis, glaber, subtus canes- 

 centi- viridis, sparse hirtulus vel glabrescens, usque ad basin 5 — 7-partitus; lobi 

 brevissime cunfluentes, obovato-cuneaü, obtusissimi vel leviter retusi, longiuscule mucronati, 

 8 — 9 cm longi, 4 — 5 cm lati; stipulae selaceae, deciduae, integrae, fulvo-tomentosae. 

 Racemi demum elongati, ad 25 cm longi, paulo supra basin flores Q paucos, deinde 

 tf numerosos gerentes, glabri; bracteae glabrae, ad 3 cm longae, ovatae, acuminatae, 

 concavae; pedicelli (j* ad 3 cm, Q crassiusculi, 4—6 cm longi. Calyx q? in 

 alabastro tubuloso-cylindricus, 25 mm longus, fere ad medium 5-fidus, Q 20 — 22 mm 

 longus, paulo ultra medium partitus, utriusque sexus extus et intus glaber; discus 

 glaber; stamina glabra; antherae 4 — 5 mm longae; ovarium glabrum, alato-costatum, 

 pruinosum. Capsula e basi truncata subglobosa, acuta, 6-alato-costata, 4 — 5 cm longa, 

 3^2 — 4V2 cm * ata > sem en subglobosum compressum. — Fig. 11 G — H\ Fig. 15(7 — E. 



Südbrasilianische Provinz: In der Formation der Bergsträucher in der Serra 

 Branca in dem brasilianischen Staate Piauhy (Ule n. 7l41 a !); in der Serra Nova kulti- 

 viert (Ule n. 7l41 b !). — Staat Bahia, bei Remanso kultiviert (Ule n. 7141 c !). 



Nutzen. Liefert Kautschuk; wächst am besten auf Sandboden. Der Kautschuk 

 wird teils über Theresina durch Piauhy selbst, teils über Pernambuco versandt; die 

 größte Menge gelangt über Bahia in den Handel. 



18. M. speciosa Müll. Arg. in Fl. Bras. XI. 2. (1874) 470. — M. Biedeliana 

 Klotzsch in Sched. — Frutex metralis vel altior, e basi ramosus; rami crassi, viridi- 

 fusci, irregulariter angulosi, glabri. Petiolus 6 — 8 cm longus, validus, glaucus; limbus 

 usque ad basin 3 — 5-partitus, coriaceo-membranaceus, supra fuscus, subtus intense 

 glaucus, crebre fusco-venulosus; lobi obovati, 6 — 8 cm longi, 3 — 3^2 cm ^h Das * 

 valde angustati, fere foliola simulantes, apice rotundato-obtusi, abrupte mucronulato- 

 acutati; costae secundariae angulo semirecto insidentes, utrinque db 10; stipulae 10 mm 

 longae, integrae, e basi lineari-lanceolata longissime setaceo-acuminatae. Racemi demum 

 petiolis aequilongi, glauco-violacei, dense imbricatim bracteigeri; bracteae lineari-lanceo- 

 latae, sessiles, breviter subsetaceo-acuminatae , 3 l / 2 cm longae, integrae; pedicelli (j 1 

 4 — 7 mm, Q refracto-subpenduli, 2 — 3 cm longi. Calyx utriusque sexus flavo-viridis, 

 12 — 14 mm longus, violaceus, extus et intus glaber, (J 1 ad 3 /ö longitudinis 5-fidus, 

 aperiens obtuse acuminatus; discus crassus, glaber; stamina glabra; ovarium cylindrico- 

 ellipsoideum, prominenter longitrorsum 6-costatum. 



Südbrasilianische Provinz: Brasilien, zwischen dem Rio de Padre und R. 

 Säo Francisco (Riedel n. 2822!). 



19. M. grandiflora Müll. Arg. in Fl. Bras. XI. 2. (1874) 471 t. 66. — Frutex 

 vel arbuscula, 1 — 3 metralis, glaberrima; rami validiusculi, dense foliosi. Petioli 

 validiusculi, 5 — 6 cm longi; limbus membranaceus, demum rigidulus, supra fusco- 

 nigricans, subtus coerulescenti-glaucus, fere ad basin tripartitus vel indi Visus; lobi late 

 obovati, abrupte subsetaceo-acuminati, laterales obliqui, 6 — 7 cm longi, 4 — i\-> cm 

 lati; costae secundariae angulo semirecto insidentes, utrinque 7 — 10, vix prominentes; 

 stipulae G mm longae, rigidulae, fuscae, acuminatae, argute mulüdentatae. Racemi 

 6 — 12 cm longi, basi et inferne laxe g; bracteae 15 mm longae, elliptico-lanceolatae, 

 integrae, basi angustatae, caducae; pedicelli g pauci, validi, deflorati deflexi, 1 ! /2 — 

 V/ 2 cm longi, tf 10 — 17 mm longi. Calyx utriusque sexus 18 — 21 mm longus, 





