Dendrobium tetragonum Cunningham ex Lindley 1839 SECTION Dendrocoryne Photo courtesy of Allen Black.
Another Color Flower Photo courtesy of Eric Hunt, plant grown by White Oak Orchids.
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Common Name The Rectangular-Bulbed Dendrobium - The Blotched Tree Spider Orchid - The Banded Tree Spider Orchid
Flower Size 2 to 6" [5 to 15 cm]
Found in Queensland Australia as a cool to hot growing, miniature, epiphytic species from humid ravines or gullies at altitudes of 500 to 1000 meters, likes damp shady conditions with semi-pendulous, clustered, 4 angled, widest at the middle, spindle shaped apically, from 7 to 10 noded stems carrying 2 to 3, ovate or oblong, acute, paery thin yet coriaceous, dark green leaves and blooms in fall till spring on a very short, raceme with minute floral bracts and 1 to 5, variable, very fragrant flowers that arise from near the apex of the leafed cane. It likes to be mounted to accommodate the pendant growth habit and needs a lessening of water and fertilizer through the winter months.
Synonyms Callista tetragona (A. Cunn.) Kuntze 1891; Dendrobium capitisyork M.A.Clem. & D.L.Jones 1989; Dendrobium tetragonum var. giganteum P.A.Gilbert 1937; Dendrobium tetragonum var. hayesianum P.A.Gilbert 1937; Dendrobium tetragonum A. Cunn. var. variabilis Gilbert 1937; Dendrocoryne tetragonum (A. Cunn.) Brieger 1981; Tropilis tetragona (A. Cunn.) Butzin 1982; Tetrabaculum capitisyork (M.A.Clem. & D.L.Jones) M.A.Clem. & D.L.Jones 2002
References W3 Tropicos, Kew Monocot list , IPNI ; Orchid Species Culture; Dendrobium Bakers 1996; The Dendrobiums H. P. Wood 2006; Native Orchids of Australia Jones 2006 as Tetrabaculum capitsyork; Native Orchids of Australia Jones 2006
Dendrobium tetragonum var. giganteum P.A.Gilbert 1937 Photo by © John Varigos and His Orchid webpage
Found on Cape York in Northen Queensland.
Synonyms Dendrobium capitisyork M.A.Clem. & D.L.Jones 1989;
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