Dendrobium flos-wanua O'Byrne & Wood 2011

SECTION Calcarifera

Photo by Sony Wibisono

Part sunHot To WarmSpringFall

Common Name Wanua's Dendrobium [Indonesian Orchid Enthusiast current]

Flower Size .88" [2.2 cm]

Found in Kalimantan Borneo in lowland forests at unknown elevations as a mini-miniature sized, hot growing epiphyte with clustered, spreading, erect to arching, unbranched, green becoming reddish brown, longitudinally sulcate in maturity, terete stems carrying decidous, elliptic, tapering to an obliquely acute, unequally bilobed apex, slightly undulate margined, thin textured leaves that tightly encircle the stem with a cylindric, dirty white, persistent sheath that blooms in the spring and fall on a pendulous, 3.4" [8.5 cm] long, 2 to 8 flowered inflorescence arising laterally from the nodes near the apex of leafless stems with triangular, acute floral bracts carrying 2 to 8, glossy, almost simultaneously opening flowers.

D flos-wanua is similar to D ionopus but is distinguished by the projecting basal callus on the lip and broader, elliptic to obovate, truncate to slightly retuse petals. Also similar to D punbatuense but it has much larger flowers and the lip blade is slightly erose and often inflexed. D muluense is also similar but it has a much smaller lip blade.


References W3 Tropicos, Kew Monocot list , IPNI ; *Malesian Orchid Journal Vol 6 2010 drawing/photo fide; A Guide to the Dendrobium of Borneo J J Wood 2013 photo fide; Dendrobium of Borneo Wood 2014 photo/drawing fide