Dendrobium bullenianum Rchb.f 1862 SECTION Pedilonium Photo courtesy of David Morris and Clackamas Orchids

Flower Closeup Photo courtesy of Patricia Harding

to LATE THROUGH

Common Name Bullen's Dendrobium [English Gardener with Low & Co. 1800's]

Flower Size 3/4" [1.9 cm]

This medium sized, cool to hot growing, epiphytic species is found in the Philippines and Vietnam in evergreen lowland forests at elevations up to 1000 meters with slender, slightly fractiflex, attenuate below, many noded, sulcate stems covered with sheaths and carrying submembraneous, ovate-oblong, obtuse leaves that are unequally bilobed apically and have clusters of orange flowers with red lines that arise on short to 2 1/2" [6.25 cm], densely flowered, almost globose inflorescence from all along the older dry canes. It likes some direct sun in the morning and I treat it the same year round. It is normal for leaves to yellow up and fall off in the late summer just before it blooms.

Synonyms Callista intermedia (Teijsm. & Binn.) Kuntze 1891; Dendrobium chrysocephalum Kraenzl. 1892; Dendrobium erythroxanthum Rchb.f 1874; Dendrobium intermedium Teijsm. & Binn. 1853; Dendrobium topaziacum Ames 1915

References W3 Tropicos, Kew Monocot list , IPNI ; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchidiana Philipiniana Vol 1 Valmayor 1984; Orchid Species Culture; Dendrobium Bakers 1996; The Orchids of the Philippines Cootes 2001 photo fide; A to Z of South East Asian Orchid Species Vol 1 O'Byrne 2001 photo fide; Flora Malesiana Orchids of the Philippines Vol I Agoo, Shuiteman and de Vogel 2003; AOS Bulletin Vol 73 No 3 2004; The Dendrobiums H. P. Wood 2006; Malesian Orchid Journal Vol 6 2010 photo fide

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