Wallichia lidiae A.J.Hend., Taiwania 52: 6 (2007)

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Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Myanmarpresent (World Checklist of Arecaceae)B
Known only from the central part of the Pegu Yomah, Myanmar. (Henderson, A.J., A Revision of Wallichia (Palmae) in Taiwania 52(1). 2007)A

Discussion

  • Wallichia lidiae differs from all other species in its short pistillate stems and elongate staminate stems, both of which are borne in the same clump. In pistillate stems the single inflorescence is terminal, and is subtended by smaller leaves. Staminate stems are elongate and have a terminal abortive pistillate inflorescence and up to seven lateral staminate inflorescences. (Henderson, A.J., A Revision of Wallichia (Palmae) in Taiwania 52(1). 2007)A

Diagnosis

Biology And Ecology

Description

  • Stems clustered, with one main stem and several shorter ones, to 4 m tall, 4 cm diameter, stems bearing staminate inflorescences to 4 m tall, pistillate stems much shorter, to 0.5 m tall. Leaves 6, spirally arranged; sheaths not fibrous; petioles 2 m long; rachis 1 m long; pinnae 7 per side of rachis, regularly and alternately arranged except for clustered proximal pair, spreading in the same plane, pinnae from middle of leaf 50 cm long, 12-14 cm wide at widest point, widest near the middle, broadly lanceolate, scarcely lobed. Inflorescences subtended by smaller leaves, unisexual, staminate and pistillate borne on separate stems, the pistillate terminal the staminate lateral; staminate inflorescences 70 cm long, to 7 per stem, pendulous; prophyll not seen; peduncle 40 cm long; peduncular bracts 11, open and not sheathing the peduncle; rachillae 4 cm long, 1 mm diameter, glabrous; staminate flowers not seen; pistillate inflorescences 45 cm long, pendulous; prophyll not seen; peduncle 20 cm long; peduncular bracts several, open and not sheathing the peduncle; rachillae about 17, 14-15 cm long, 2.5 mm diameter; pistillate flowers to 3 mm long at anthesis; sepals 0.5 mm long; petals 2.5 mm long; gynoecium 2.5 mm long; fruits not seen. (Henderson, A.J., A Revision of Wallichia (Palmae) in Taiwania 52(1). 2007)A