Monographie der Turneraceen. 



97 



Icon: Urb. in Mart. Flor. Bras. Xlll, III, t. 38. 



Frutex 1 — 2,5 m altus; rami elongati debiles parci aliis arboribus accumbentes, 

 ramuli vetustiores glabrescentes v. glabri, brunnei, nunc griseo-maculati, tenaiter striati, 

 hornotini pilis brevissimis pallide navis, crispulis v. sursum curvatis dense pilosinsculi 

 v. pulverulenti, gemmis serialibus obviis, nonn Ullis postremo elongatis et floriferis. 

 Stipulae minimae, saepius deciduae, lanceolatae v. lineari-subulatae, 0,2 — 0,5 mm longae. 

 Folia 4 — 10 mm longe petiolata, magnitudine in eodem specimine valde variabilia, 

 generationis prioris 2 — 4 cm lata, margine piano basi excepta serrata v. crenata, 

 dentibus saepe subinaequalibus v. duplicatis, nervis supra prominulis, subtus promi- 

 nentibus, supreraa et generationis posterioris (ramorum serialium) 2 — 4 cm longa, 1 — 2 cm 

 lata. Pedunculi superne dilatati ; prophylla acuminata, extrinsecus v. utrinque pilosula, 

 ramosinervia, fructum obtegentia saepius ampliata, margine integra v. plerumque denti- 

 culata, basi non connata, utrinque appendicibus plane liberis plerumque solitariis, raro 

 2 — 3, linearibus v. lineari-subulatis 1 — 5 mm longis stipulata. Calyx extrinsecus 

 breviter et adpresse hirtellus, tubo subcylindrico intus superne piloso, lobis lanceolato- 

 linearibus, 3- v. sub-5-nervibus, nervo medio supra apicem 1 — 1,5 mm longe setaceo- 

 producto, lateralibus in lobis interioribus membranaceis obsoletioribus. Petala calycem 

 vix v. parte 5— 6-ta superantia, „aurantiaca", obovato-cuneata, 13 — 14 mm longa, 1mm 

 lata, intus supra basin pubescentia. Filamenta supra basin extrinsecus longitrorsum 

 glanduloso-incrassata , longiora 9— 10 m, breviora 6 — 7 mm longa; antherae juniores 

 lanceolato- lineares, a basi sensim angustatae, obtusiusculae v. obsolete apiculatae, 

 3,5 — 4,5 mm longae, 0,7 — 0,9 mm latae, dorso in '/ 4 — l / s alt. in concavitate ampla 

 afflxae, basi er. in l / l0 alt. emarginatae. Styli basi remotiusculi, in parte l / 2 — Vs 

 inferiore pilis erectis v. erecto-patulis hirsuti, apice 1 mm longe flagellato-multifidi, 

 longiores 9 — 11mm longi, antheras 2,5— 3 mm longe superantes, breviores 5— 5,5 mm 

 longi, a basi antherarum vix 2 mm distantes. Ovarium subeylindricum, basi paullo 

 amplius, brevissime v. obsolete birtellum, 22— 38-ovulatum. Fructus globulosi, interdum 

 obsolete et obtuse apiculati, 4 — 6 mm diametro; valvae dorso breviter hirtellae, intus flaves- 

 centes, ferrugineo-punetatae, glabrae. Semina obovata v. obovato-oblonga, parum v. 

 manifeste curvata, inferne valde attenuata, 2,5 — 3,5 mm longa, 1,3 — 1,8 mm crassa, hilo 

 non prominente, chalaza paullo protracta coneava, arillo laterali amplo fere seminis 

 longitudine flavescente. 



Habitat in Brasiliae prov. Pard et Alto Amazonas : Martius, Spruce n. 1074, 1405, 

 Trail n. 347, 354 ; in Venezuela prope Maypures : Humboldt et Bonpland n. 882, Spruce 

 n. 3004. — Flor, et fruet. m. Nov. Dec. Mai. Jun. 



11. Tumera aurantiaca Benth. petiolis superne v. sub lamina 

 ipsa glandulas majusculas 1 + 1, raro 2 + 2 gerentibus; foliis ovatis 

 usque ovato-oblongis, acutis v. acuminatis, basi rotundatis v. cuneatim 

 in petiolum protractis, 8 — 13 cm longis, 2 — 3-plo longioribus quam 

 latioribus, supra glabrescentibus, subtus praesertim ad nervös brevi- 

 ter strigoso-pilosis, margine eglandulosis ; floribus dimorphis; pedun- 

 culis 15 — 25 mm longis; prophyllis linearibus usque ellipticis 8 — 17 mm 

 longis, 1 — 6 mm latis; calyce 18 — 32 mm longo, in x l 2 alt. coalito; 

 filaraentis tubo 2 — 3 mm longe adnatis, usque ad v. supra medium 

 puberulis. 



Tumera aurantiaca Benth.! in Hook. Journ. of Bot. IV, 116; Walp. 

 Repert. II, 229, 



Jahrbuch des botanischen Gartens. II, 7 



