Schismatoglottis okadae M.Hotta

Small to moderately robust rheophytic herb c. 15-40 cm tall. Stem creeping to decumbent, with internodes to 1-4 cm long, 1-3 cm thick. Leaves several along the stem; petiole generally longer than the blade, 5-40 cm long, sheathing in the lower 2/5-3/5; wings of sheath fully attached (later tending to degrade) and tapering; blade oblanceolate to ovate, 7-26 cm long × 2-10 cm wide, the base acute to shallowly cordate, sometimes markedly asymmetric, the tip acuminate for 1-3 cm; midrib and primary veins tough and abaxially prominent; primary lateral veins 3-9 on each side of the midrib, irregularly alternating with interprimaries ill-differentiated from the secondary venation, diverging at c. 30°; secondary venation mostly arising from the midrib, some from near the bases of the primary veins in the lower part of the leaf; tertiary venation obscure. Inflorescence solitary; peduncle more or less half the length of the petiole at anthesis (later elongating). Spathe green, 5-8 cm long; lower spathe narrowly ovoid to ovoid, 2-3 cm long, differentiated from the limb by a weak constriction; limb oblong-lanceolate, shortly acuminate, 3-5.5 cm long, whitish, persistent after anthesis, finally deciduous. Spadix shortly stipitate, 3-3.5 cm long; female zone and stipe obliquely inserted to partly adnate to the spathe in the basal 1/4; female zone 1-1.5 cm long, subcylindric, c. 2 mm diam. (dry); pistils crowded (distally more lax), oblong-subglobose, c. 0.5 mm diam.; stigma sessile, discoid, slightly narrower than the ovary; interpistillar staminodes absent from among the pistils, a few or an incomplete whorl at the base of the female zone, more or less globose, sessile, slightly larger than the pistils; sterile interstice 5-8 mm long, within and reaching the mouth of the lower spathe chamber, naked except for scattered small groups of sessile staminodes smaller than the basal ones, c. 0.3 mm diam.; male zone more or less cylindric-fusiform, c. 1.2-2 cm long × 3-5 mm thick; stamens crowded, truncate with the connective thick but not elevated between the thecae, c. 0.6 mm across; appendix shorter than and basally isodiametric with the male zone, c. 5 mm long, apically acute; staminodes of the appendix flat-topped, irregularly polygonal, c. 0.7 mm diam. Fruiting spathe urceolate becoming pyriform, c. 3-4 cm long.