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

TYPE Drawing

Photo/TYPE Drawing by Peter O'Byrne


Common Name The Wooly Thrixspermum [refers to the lip]

Flower Size 2.2 to 2.6" [5.5 to 6.5 cm]

Found in Sabah Borneo in primary forests at elevations of 300 to 400 meters as a small to medium sized, warm growing epiphyte with spreading stems enveloped by slightly compressed, to green, becoming sulcate with age, persistent, longer than the internodes sheaths and carrying spreading, strap-shaped to narrowly obovate, green, leathery, keeled beneath, obtuse, subequally bilobed leaves that blooms in the later spring on horizontal, arising from the nodes near the base of the stem, peduncle 1.32 to 3.8" [3.3 to 9.5 cm] long, broadening slightly towards the rachis, provided with one at the base and 2 more below the rachis bracts, cylindrical, distal part slightly compressed, green, rachis compressed, to 6.8" [17 cm] or more, yellow green to green, sporadically successively 1 to 2, several flowered inflorescence with close, compressed, pbliquely parabolic, to obliquely rhombic, falcate, somewhat shorter to as long as the ovary, acute floral bracts and carrying ephemeral, wide open flowers.

Similar to T celibicum but T lanatum differs in having a cylindrical midlobe that is much more than .16" [4 mm] long and the nonantrorse callus at the midlobe base. .


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