Bulbophyllum grandiflorum Blume 1849 SECTION Hyalosema Schlechter 1911

TYPE for the section

Plant and Flower Photos by Marius Wasbauer

Another Flower Angle

Common Name The Large-Flowered Bulbophyllum

Flower Size to 7" [to 17.5 cm]

Found in Sumatra, Sulawesi, the Moluccas, and New Guinea at elevations of 100 to 800 meters in primary rainforests on the lower trunks of large trees as a hot growing epiphyte that blooms on a basal, erect to arching, to 10" [to 25 cm] long, single flowered, green inflorescence with foul smelling flowers that is longer than the leaves and occurs in the fall.

Very similar to Bulbophyllum burfordiense but it differs in a ciliate labellum, triangular petals, free, acute to obtuse lateral sepals, and a smaller dorsal sepal, while the other has a glaborous labellum, ovate petals that are apically acute, tapering lateral sepals with the apex acuminate, and a larger dorsal sepal of at least 14 cm long x 4 cm wide.

Synonyms Bulbophyllum burfordiense Rolfe 1901; Bulbophyllum micholitzii Rolfe 1901; *Ephippium grandiflorum Bl. 1849; Hyalosema grandiflorum [Bl.]Rolfe 1919; Hyalosema micholitzii (Rolfe) Rolfe 1919; Phyllorchis grandiflora (Bl) Kuntze 1891; Sarcopodium grandiflorum (Bl) Lindl. 1853

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchidaceae of German New Guinea Schlechter 1914/85; Orchidaceae of German New Guinea Schlechter 1913/85 as B micholtzii; Die Orchideen Schlechter 1915; AOS Bulletin Vol 27 no 7 1958 drawing; The Orchids of Papua New Guinea An Introduction Millar 1978 photo fide; AOS Bulletin Vol 50 No 9 1981 photo; AOS Bulletin Vol 52 No 9 1983 photo; Die Orchideen lieferung 13 753 - 816 Bulbophyllinae 1983 as Hyalosema micholtzii photo fide; Die Orchideen lieferung 13 753 - 816 Bulbophyllinae 1983 as Hyalosema grandiflorum; AOS Bulletin Vol 56 No 12 1987 photo; The Orchids of the Solomon Islands and Bougainville Lewis & Cribb 1991 photo fide; Orchid Digest Vol 59 No 1 1995 photo fide; Orchids of Papua New Guinea Millar 1999 photo fide; Australian Orchid Review Vol 66 No 3 2001 photo; Bulbophyllum and Their Allies Siegerist 2001 as Cirrhopetalum grandiflorum; Lindleyana Vol 17 No 1 2002; AOS Bulletin Vol 77 No 11 2006 photo; Bulbophyllum: the incomplete Guide From A to why? Bill Thoms 2009 photo fide; Bulbophyllum of Sulawesi Verm. & O'Byrne 2011 drawing/photo fide; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015;

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