Thrixspermum chanianum P.O'Byrne & Gokusing 2016 SECTION Thrixspermum

TYPE Drawing

Photo/TYPE Drawing by Peter O'Byrne


Common Name Chan's Thrixspermum [Sabahan Datuk Chan Chew Lun, owner and publisher of The Malesian Orchid Journal current]

Flower Size 1.24 to 2.4" [3.1 to 6 cm]

Found in Sabah Borneo on riverside trees in hill forests at elevations of 500 to 600 meters as a miniature sized, warm growing epiphyte with spreading stems with longer than the internodes, compressed, purple, sulcate, persistent sheths and carrying spreading, strap-shaped to oblong-elliptic, dark gfreen, suffused purple, green or purple beneath, l;eathery, sometimes constricted before the subequally bilobed apex leaves that blooms in the late spring, summer and fall on several, from nodes near the base of the stem, 3.2 to 13.2" [8 to 33 cm] long overall, peduncle 1.6 to 4" [4.5 to 10 cm] long, wiry, compressed, broadening towards the rachis, , provided with 2 basal and 2 to 3 more below the rachis, dark maroon purple or red scales, rachis compressed, to 8.8" [22 cm] long or more, green, dark green or pink, suffused with maroon, successively single, several flowered inflorescence with close set, compressed, falcate, unequally elliptic, acute, much shorter than the ovary floral bracts and carrying ephemeral flowers.

Similar to T latisaccatum but T chanianum differs in the lip which has a non-inflated sac, falcate sidelobes and a narrower midlobe with thickened, glandular-hairy lateral margins on the adaxial basal depression.


References W3 Tropicos, Kew Monocot list , IPNI ; *Malesian Orchid Journal Vol 18 2016 drawing/photo fide;