Macaranga. 319 



Sect. 5. Semiglobosae Pax et K. Hoffm. 



Folia indivisa, peltata, palmatinervia; stipulae parvae vel mediocres, caducae. 

 Bracteae non patellari-glandulosae, integrae vel paucidentatae. Stamina 2 — 5; antherae 

 4-loculares, rarius simul 3-loculares. Ovarium 2 — 5-loculare, laeve. Capsula depresso- 

 semiglobosa, laevis. 



Das Areal der Sektion reicht von Sumatra bis zu den Philippinen. 



Clavis specierum. 



A. Ramuli villosuli. 



a. Folia subtus albido-violacea 28. M. bicolor. 



b. Folia subtus non albida 29. M. pachyphylla. 



B. Ramuli glabri. 



a. Inflorescentia tf elongata . . . 30. M. semiglobosa. 



b. Inflorescentia q 1 abbreviata 3 1 . M. brachythyrsa. 



28. M. bicolor Müll. Arg. in Linnaea XXXIV. (1865) 199; in DC. Prodr. XV. 2. 

 (1866) 1010; Merrill in Journ. Philipp, sc. I. Suppl. (1906) 80. — Tanarius bicolor 

 O. Ktze. Rev. gen. II. (1891) 620. — Arbor parva; ramuli validi, superne angulosi, 

 crispule ferrugineo-villosi, deinde glabrescentes et pruinosi. Petiolus 6 — 20 cm longus, 

 fulvo-villosus, demum pruinosus; limbus 10 — 26 cm longus, 8 — 1 1 */ 2 cm latus, late 

 ovatus, acuminatus, basi late peltata rotundatus, integer, chartaceus, supra nigricanli- 

 fuscus, glaber, subtus ± albido-violaceus, in costis et venis villosulus, granuloso-glan- 

 dulosus, reticulato-venosus; stipulae 2V2 mm longae, trianguläres, acutae, mox caducae. 

 Paniculae q^ 7 — 1 5 cm longae, breviter pedunculatae, ferrugineo-tomentosae, ramosae; 

 bracteae florigerae glomerato-aggregatae, 2 — 3 mm longae, obovatae vel ovatae, integrae 

 vel superne paucidentatae, utrinque tomentosae, 10 — 20-florae. Calyx q? 1 mm longus, 

 clavatus; sepala 3 — 4, apice rufo-papillosa et pilosa; stamina 1 — 3; antherae 4-locu- 

 lares. Inflorescentiae Q 3 — 4 cm longae, simplices vel subsimplices, racemosae, fere 

 a basi florigerae, ferrugineo-tomentellae; bracteae haud visae; pedicelli sub fructu ad 

 1 cm attingentes. Calyx Q cupularis, tomentellus, leviter 3 — 4-dentatus; ovarium 2 — 

 4-loculare, laeve, granuloso-glandulosum ; styli 1 y 2 mm l° n g'j papillosi, ovario incum- 

 bentes. Capsula depresso-semiglobosa, 2 — 4-sulcata, nondum matura 7 — 8 mm lata. 



Philippinen (Cuming n. 130l!): Luzon, Bataan, Lamao Forest (Borden 

 n. 641, 72 2!, 129 4, 1296!, 1569, 1570, 2930, Eimern. 6858, Merrill n. 165, Meyer 

 n. 3018!, Whitford n. 9!, 1 7 !), Dinalupihan (Merrill n. 1533!); Rizal (Ahern's 

 Collector n. 2864!, 2980!, Merrill n. 1677!); Manila (Loher n. 2833!). — Leyte 

 (Eimer n. 7125!). 



Einheim. Namen: Binunga, Bilua. 



Nota. Specimina Cumingiana foliis gaudent subtus niulto magis albicantibus quam 

 in ceteris vidimus. 



29. M. pachyphylla Müll. Arg. in DC. Prodr. XV. 2. (1866) 999. — Tanarius 

 pachyphyllus O. Ktze. Rev. gen. II. (1891) 620. — Ramuli crassi, teretes, dense foliosi, 

 coerulescenti-pruinosi et tenuiter villosulo-pubescentes. Petiolus ad 20 cm longus, bre- 

 vissime villosulus, demum glabrescens ; limbus 20 — 30 cm longus, 14 — 22 cm latus, 

 triangulari-ovatus, rigidulus, basi latissime peltatus, subtus granuloso-glandulosus, supra 

 demum glabratus, subtus ad nervös brevissime villosulo-pubescens, juvenilis supra dense 

 pallide rufescenti-villosus, subtus molliter ferrugineo-tomentosus, margine appendiculato- 

 glanduloso-denticulatus ; stipulae late triangulari- ovatae, acuminatae, violaceae, dorso 

 parce puberulae, mox recurvae, 1 mm longae, basi 9 mm latae. Flores q? ignoti. 

 Inflorescentiae Q juveniles petiolis multoties breviores, rigidissimae; bracteae dense im- 

 bricatae, oblongo-ovatae, concavae, obtusae, integrae, primariae 10 mm longae, sub- 

 sericeae, coriaceo-membranaceae. Calyx Q 5-partitus; ovarium inerme; styli 2 — 4, 

 breves. Capsula ignota. 



Südwestmalayische Provinz: Sumatra, Lampong (Zollinger n. 1815Z). 



