Species Information - Dimorphorchis beccarii var. imthurnii

Dimorphorchis beccarii (Rchb.f.) Kochyan & Schuit. var. imthurnii (Rolfe) Kochyan & Schuit., Phytotaxa 161 (2014) 64

Type: Kew cult. (Everard im Thurn) s.n. (Solomon Isl., Mala or Malaita Is.) (holo K)

Synonyms:

• Stauropsis imthurnii Rolfe, Bot. Mag. 143 (1917) t. 8714
• Arachnis imthurnii (Rolfe) L.O.Williams, Bot. Mus. Leafl. 5 (1937) 58
• Vandopsis imthurnii (Rolfe) P.F.Hunt, Kew Bull. 24 (1970) 98
• Arachnis beccarii Rchb.f. var. imthurnii (Rolfe) K.W.Tan, Arachnis, Armodorum, Esmeralda & Dimorphorchis (Orchidac.), Taxon (1974) 82

An epiphytic plant. Stems short, stout, erect, leafy. Leaves distichous, imbricate, arcuate, firmly coriaceous, elongate-ligulate, acute, up to 200 by 7 cm, the margins sharp, dilated, sheathing the stem at the base. Inflorescence lateral from the base of the leaves, woody, longer than leaves, laxly branched near the apex. Floral bracts short. Flowers fragrant, somewhat fleshy. Pedicel and ovary 1.5 cm long. Sepals spreading, spathulate-oblong, obtuse, up to 3 by 1 cm wide near the apex, the lateral sepals with a well defined median ridge on the back. Petals spathulate, up to 3 by 0.8 cm. Lip with a short claw, fleshy, 3-lobed, 0.6 by 0.7 cm when flattened, saccate in the middle, the lateral lobes erect, orbicular-oblong, the mid-lobe inflexed, broadly oblong, obtuse. Column broad, 0.8 cm long.
(After Lewis and Cribb, 1991).

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