Rhaphidophora sabit P.C.Boyce

Moderate, robust, semipachycaul, homeophyllous (?) liane (?) to unknown ultimate height; seedling stage and pre-adult plants not observed; LEAVES: adult shoot architecture not fully known but seemingly comprised of clinging, physiognomically, non-flowering stems and shorter clinging, sympodial, densely leafy, flowering stems; stems drying deeply longitudinally ridged, internodes on flowering stems 2-3 x c. 1 cm, separated by prominent straight to slightly oblique leaf scars; clasping roots densely arising from the nodes, pubescent; feeding roots, unknown; leaves distichous in specimen seen; cataphylls and prophylls chartaceous, soon falling; petiole deeply canaliculate, 14-31 x 0.3-0.4 cm, apical and basal geniculum prominent; petiolar sheath prominent, extending to apical geniculum, ± short-persistent, degrading to chartaceous strips and a few weak fibres; lamina entire, narrowly falcate-lanceolate to narrowly falcate-oblanceolate, oblique, drying distinctly discolorous, dark brown above, orange-brown below, 32-46 x 4.5-7 cm, weakly coriaceous, base rounded, decurrent, apex acute with a prominent apical tubule; midrib prominently raised abaxially, ± sunken adaxially; primary venation densely pinnate, raised abaxially, slightly raised adaxially; interprimaries parallel to primaries and barely less prominent; secondary venation reticulate, very slightly raised; INFLORESCENCE subtended by a large chartaceous cataphylls, these swiftly degrading, and falling; peduncle slightly compressed, distinctly enlarged distally towards spathe insertion, 10.5-11 x 0.3-0.5 cm; spathe unknown, falling to leave a large scar at the base of the spadix; spadix slightly tapering-cylindrical, sessile, obliquely inserted on peduncle, 5 x 1 cm in the single collection known; stylar region moderately developed, rounded-trapezoid to weakly rhombohexagonal, c. 1 x 1.5 mm, shortly conical; stigma punctiform, raised, c. 0.3 mm diam.; anthers not exserted at anthesis; INFRUCTESCENCE unknown.