Piptospatha impolita S.Y.Wong, P.C.Boyce & Bogner

Rheophytic herb 9-11 cm high. Stem condensed, 1-4 cm long, 0.5-0.9 cm diam., with slender pale green 0.5-1.5 mm diam. Leaves several to 10
together; petiole 2-6 cm long, 1-1.5 mm diam., very slightly canaliculate adaxially, sheathing only at the extreme base, the remainder of the sheath
ligular, the ligules extended into a narrowly triangular, purple to reddish portion 2-3 cm long, drying dark brown and moderately  long-persisting; blade very narrowly elliptic to narrowly elliptic-oblong to oblanceolate,
thinly coriaceous, matte medium-green adaxially, paler to slightly dull-pink
flushed abaxially with the mid-rib and occasionally main venation markedly
reddish, 6-13 cm long × 0.5-1.5 cm wide, base cuneate, apex acute and
tubular-apiculate for 2-3 mm; midrib robust, abaxially prominent, adaxially
bluntly raised (fresh), impressed (dry), with (6-)7-10 primary lateral veins
on each side, diverging at ca 35° and more or less regularly alternating
with lesser interprimary veins; secondary venation adaxially more or less
obscure, abaxially fine and dense; tertiary venation obscure. Inflorescence
solitary to 2-3 together and then alternating with foliage leaves; peduncle
shorter than to equalling, the whole leaf, 9-14 cm long, 1-2 mm diam., purple
to reddish. Spathe nodding at anthesis, subcylindric-obovoid, 2-3 cm long,
apically rostrate for 3-4 mm, the rostrum internally smooth or with ca 2 very
ill-defined keels, straight at female anthesis but recurving strongly by up to
130° at the onset of male anthesis; spathe at anthesis shading proximally to
distally from deep plum purple through medium pink to deep pink, inflating
and the distal-most part opening at female anthesis, at the end of male
anthesis the opening increasing by the reflexing of the terminal rostrum and
then at late male anthesis the upper third opening further before becoming
caducous. Spadix cylindric to very weakly, 1.5-2 cm long, 0.4-0.5 cm diam.;
female zone cylindric, 5-7 mm long, 5-7 mm diam.; ovary subcylindric to
subprismatic, ca 0.9 mm diam., dirty whitish; stigma sessile, as broad as the
ovary, thinly discoid, dirty whitish; staminodes confined to 1-2 irregular
and somewhat oblique rows at the base of the female zone, truncate, more
or less sessile, 0.7-0.9 mm diam., about as high as the pistils, ivory; male
zone weakly fusiform, isodiametric to female zone, 1.3-1.7 cm long, apically
obtuse; stamens crowded, more or less rectangular from above, glabrous, at
anthesis longitudinally sulcate with the thecae pores dorsal and ventral to
the sulcae, 1.2-1.4 mm across, connective short acute-triangular, pale cream;
pollen extruded in masses. Fruiting spathe narrowly funnel-shaped, erect,
1-1.3 cm diam.; berry obovoid, ca 2.5-3 mm long × 1.5-2 mm diam.; seed
cylindric, 1.4-1.6 mm long, brown but outer integument translucent, with a
short curved micropylar appendage rotting away in dispersed seeds.