Bulbophyllum cardiophyllum J.J.Verm., Rheedea 1 (1991) 75, fig. 5
Type: Jongejan cult. 1379 (holo L)
Rhizome pendulous perpendicularly, flattened; all rhizome scales longer than the internodes. Roots generally close to the base of the rhizome. Pseudobulbs approximately cylindrical, 0.5-1 cm apart, 0.7 by 0.3 cm, hardly flattened. Petiole c. 1.5 mm. Leaf blade ovate; base cordate, c. 3.5 by 2.3 cm, index c. 1.6; tip acuminate. Inflorescence 6-8 cm, 5-7-flowered; peduncle c. 4 cm. Floral bracts (?), the longest c. 8 mm. Rachis arching or pendulous, 1.2-2 cm. Floral bracts ovate, 5-8 mm; tip acute. Pedicel and ovary 0.3-0.4 cm, with the node 0.07 cm from the floral bract. Flowers all open time, moderately opening. Median sepal ovate to triangular, 18-22 by 2.8 mm, index 6.5-8; tip long acuminate to caudate, thin, glabrous. Lateral sepals free, oblique, triangular, 18-23 by 3 mm, index 6-7.7. otherwise as the median sepal. Petals elliptic, c. 3.3 by 1.8 mm, index c. 1.8; tip obtuse, thin, glabrous. Lip curved, general outline ovate, c. 2.7 by 1.6 mm, index c. 1.7 (not spread); tip rounded, thick but soft, glabrous; adaxially concave near the base; abaxially with a retuse median ridge. Column from ovary to the tip of the stelidia 0.7 mm; stigma protruding at its base, obovate. Column-foot without accessories. Stelidia inconspicuously, triangular; tip acute. Anther with an inconspicuously ridge; front margin protruding. Pollinia 2. (After Vermeulen, 1993)
Colours: Leaves slightly suffused with purple. Flowers entirely cream-coloured. Lip adaxially with a purple blotch.
Habitat: Epiphyte in montane forest; 2310 m.
Distribution: Malesia (New Guinea).
Distribution in New Guinea: Papua New Guinea; see map 96-286M.jpg.
Cultivation: Cool growing epiphyte.