Crepidium yamapense (Marg., Szlach. & Rutk.) Marg., Ann. Bot. Fenn. 39 (2002) 65
Basionym: Fingardia yamapensis
Terrestrial. Pseudobulbs 4.2-6.9 cm long, 0.2-0.3 cm diam., fusiform, ascending. Leaves 4; petiole 1-2 cm channelled, widening and sheathing towards the base; blade 6.2-9 by 2.4-2.9 cm, broadly lanceolate to ovate-lanceolate, more or less oblique, acuminate. Inflorescence 19 cm long, erect; rachis 7.5 cm long, densely many-flowered. Flowers small, not-resupinate. Floral bracts to 1 cm, narrowly triangular to linear-lanceolate, apiculate. Median sepal 0.5-0.52 by 0.15 cm, oblong-lanceolate, obtuse, 3-nerved. Lateral sepals 0.48-0.49 by 0.2 0.22 cm, obliquely oblong-elliptic, obtuse, 3-nerved. Petals 0.48 by 0.09 cm, linear-oblanceolate, falcate, obtuse, 1-nerved. Lip 0.5 cm long and wide, more or less lunate in outline, with a prominent finger-like callus in the basal part of a conspicuous cavity surrounded by a rim; mid-lobe up to 0.1 cm, triangular, bifid at the apex; lateral lobes obliquely triangular-falcate, subacute, with 6 obscure teeth on either side of the mid-lobe. Column 0.1 cm long. Pedicel and ovary 0.5-0.6 cm long, slender. (After Szlachetko et al., 1998)
Colours: Leaves dull green. Flowers white.
Habitat: Castanopsis-Lithocarpus dominated ridge forest; 1260 m.
Flowering time in the wild: March.
Distribution: Malesia (New Guinea, endemic).
Distribution in New Guinea: Papua New Guinea. See map: 185-258M.JPG.
Cultivation: Intermediate growing terrestrial.
Notes: We consider this to be a species of Malaxis, but to the best of our knowledge there is no name available under this genus.
White flowers are unusual in this alliance.