Species
B. ankaranensis
Photos
5 photos
Identity
- Genus
- Begonia
- Name
- B. ankaranensis
- Author
- Humbert ex Keraudren-Aymonin & Bosser, Bull. Soc. Bot. France
- Publication Date
- 1973
- Habitat
- endemic. West (north): Limestone plateau of northern Ankarana, between Ambilobe and Anivorano, Humbert 25521, 32520, 32521; North Ankarana, west of the main road, Mount Ambatopiraka, Humbert 32646, 32647, 32648; North Ankarana, west of Fanihy Cave, Humbert 32704, 32742; Anivorano-North Canton, Antenampandrana Forest PK 89.5 Diego Road to Ambilobe, Course 5587; Andranonakoho Forest, PK 103 Diego Road at Ambilobe, Course 5518; PK 103, Diego Suarez road to Ambilobe, Bosser 20214; Ankarana of the north, village of Marovato-Anketraka, Misoromahalana Forest, Course 5456. Habitat: on rocky ledges, in cracks and on lapey cliffs, in small scree of calcareous sand sheltered from the sun or shaded and wet excavations of cliffs and comics of Jurassic limestone causse of northern Ankarana, under tropophilic forest; alt. 200-300 m; fl. fr. Jan.-April.
- Country
- Madagascar
- Region
- Africa
- Section
- Quadrilobaria
- Plant Type
- Rhizomatous
- Reference
- Bull. Soc. Bot. France 118:735, pl. 2:figs. 8–12. "1971". 1973.; JGSL9/08
Plant
- Description
- Plant acaule, subglobular subterranean tubercle, 5-12 mm thick, somewhat rhizomatous. Basal leaves most often 2-3, pale pink petiole, 3-8 (-17) cm long with short, flexible hairs; slender, tender or semi-succulent blade with a waxy feel on the fresh, 7-palmatinerve, suborbicuJaire, 4-7 cm in diameter, equilateral or slightly asymmetrical markedly cord at the base very slightly crenel-dente margins, pale green, glabrous and only a little hairy at the base of the upper surface, or ± hairs of soft hairs, generally short, but sometimes long and wavy, lighter green and ± lava of vinous red on the inferior face, glabrescent, or bearing some supple hairs; bi- or trifuric veins of darker color than the blade, glabrous or very finely pubescent and indented above, very prominent and denser pubescence below. Stipules in scales, triangular, acute, 4-5 mm, pubescent. Inflorescences solitary or 2-3, pauciflorous (up to 20 flowers) bisexual, with pedunculate 10-12 cm long, finely pubescent and pedicel 10-15 mm long; bracts oblong, deciduous, tapered and acute at the top, 5 x. 2.5-3 mm. MALE flowers with 2 tepals white or pale pink, suborbicular, cords at base, 6-7 x 6-8 mm glabrous. Stamens 9-18 free, fasciculates, with long threads of 1 mm; oblong antheres, 1 mm long, orange yellow. FEMALE flowers with pedicel 6-7 mm; 4 tepals oblong, a little uneven, 7 X 5 mm. Ovary oblong, 10 x 8 mm, triaile, glabrescent wing or hairs of sparse and fine hairs, the widest of 4.5 mm, the smallest of 2 mm; styles 3, free and bifurcated at the top; stigma in lyre, twist at the end. Capsule slightly leaning, sub-round, 12 x 10 mm, glabrous, thin; wings finely reticulated, the largest wide 6-7 mm obtuse. - Pl 11, p. 41. Species cultivated in the Botanical Garden "Cedres", St. Jean-C.ap-Ferrat under No. 5, 14 (1960-1961), seems to have disappeared. Photo. 9140/1,2,3,4,6.
Lineage
Parents
No parentage recorded.
Descendants
No recorded descendants.
Culture
No populated fields in this section.