Angraecum pseudodidieri H.Perrier, Notul. Syst. (Paris) 7: 113 (1937).
Homotypic Synonyms:
Perrierangraecum pseudodidieri (H.Perrier) Szlach., Mytnik & Grochocka, Biodivers. Res. Conservation 29: 20 (2013).
Description:
Plants upright. 10-20 cm tall, roots verrucose; stem 5-6 mm in diameter, covered by the traversely rugose sheaths and hearing 5-6 very thick, widely linear (6.5-8 cm x 810 mm) leaves, canaliculated above dorsal edge below obsolete and with the terminal lobes nearly equal. Inflorescence single flowered, from the axillary sheaths; peduncle of a slight 5 mm long, entirely covered by the scarious, rigid sheaths, the superior of which is 1cm long, pleated-carinate, obtuse, similar to the bract and as long; flower large, divisions thick and opaque, sepals, petals and spur yellowish, and the labellum pure white. Sepals lanceolate (15 x 8 mm) attenuate from the base to the acute apex, Petals similar, hut narrower (3.5 mm wide basally). Labellum nearly flat, widely obovate-cuspidate (2.5 cm x 1.8 cm), bare above; spur generally 10-11 cm long, attenuate from the oriface (4 mm wide) to the apex. Anther conical, 3 mm tall very wide, provided in front with 4 teeth. the laterals flat, the medians about 1 mm long, sub-parallel and sub confluent; pollina obovate, cauda retracted: bandeletts ad hearing basally, dividing the 2 taller wide lobes of the auricles and adhering to them. Column thick (5 x 5 mm): clinandrium flat, nearly obsolete; auricles wide, forming a projecting. obtuse angle behind; median tooth of the rostellum absent. Pedicel twisted, obscurely trigonal 1.5 cm long. Capsule obovate (2 x 1.4 cm) 3 winged and with the intermediary angles widely margined winged laterally.
Habitat:
Epiphytes in moss and lichen rich rainforests on tree trunks at elevations around 1000 meters.
Cultivation:
As given for the genus, warm to cool growing epiphyte.
Distribution:
N. Madagascar
References:
Flora of Madagascar Vol 1 & 2 Perrier 1936/81; Angraecoid Orchids Stewart, Hermans, Campbell 2006; Orchids of Madagascar Hermans 2007; Field Guide to the Orchids of Madagascar Cribb & Herman 2009;WCSP (2017). 'World Checklist of Selected Plant Families. 28.01-2017; http://apps.kew.org/wcsp/
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