Species Information - Bulbophyllum grandiflorum

Bulbophyllum grandiflorum Blume, Rumphia 4 (1849) 42, pl. 195, fig. 3, pl. 199

Type: Zippel 70 (New Guinea) (holo L)

Synonyms:

• Sarcopodium grandiflorum (Blume) Lindl., Folia Orchid. Sarcopodium (1853) 3
• Phyllorchis grandiflora (Blume) Kuntze, Rev. Gen. Pl. (1891) 677
• Hyalosema grandiflorum (Blume) Rolfe, Orchid Rev. 27 (1919) 130
• Bulbophyllum cominsii Rolfe, Bull. Misc. Inform. Kew (1898) 138
  - Type: Florida-Comins 289
• Bulbophyllum micholitzii Rolfe, Orchid Rev. 9 (1901) 272
  - Type: Glasnevin cult. s.n.
• Bulbophyllum burfordiense Hort. ex Garay, Hamer & Siegerist, Lindleyana 11 (1996) 224
  - Type: Lawrence, Bart. of Burford, Dorking, cult. s.n. (27/3/1895) (holo K) (Note: Name probably invalid, no actual type specimen cited, just 'holotype K')
• Hyalosema burfordiense (Hort. ex Garay, Hamer & Siegerist) Rysy, J. Orchideenfreund 9 (2002) 328

Rhizome creeping, branching, 4-6 mm diam; roots 0.2-0.3 cm diam., arising mainly below the pseudobulbs. Pseudobulbs 2-6 cm apart, 1-leaved, narrowly ovoid to conical, 3-7 by 1.2-2 cm, when older 4- to 5-angled. Leaves petiolate; petiole 2 cm long; blade oblong to lanceolate, 8-18 by 3.5-6.5 cm, thick coriaceous, apex usually recurved, acute. Inflorescences from rhizome, usually at base of pseudobulb, 1-flowered, erect; peduncle 10-20 cm long, with 3-4 peduncle-scales. Floral bract 3 cm long. Pedicel 3-5 cm long; ovary 2 cm long, 6-grooved. Flower 7-15 cm long. Median sepal oblong-ovate, 8-12 by 4-6.5 cm, apex obtuse, apiculate. Lateral sepals obliquely oblong-ovate, falcate, shorter than median sepal, 2.8-4 cm wide, apex obtuse, apiculate. Petals triangular, 0.3-0.4 by 0.2 cm, margins recurved, apex acute. Lip ligulate, widened to the base, keeled below, laterally flattened, in lateral view obliquely ovate, 0.6-0.7 long, 0.3-0.4 cm wide at the base, with long marginal hairs, in front covered with long, silky white hairs; very mobile, decurved. Column short and stout, 0.4 cm long; column-foot 0.8 cm long, incurved. (After O'Byrne, 1994 and Van Bodegom, 1973)

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