Pothos brevivaginatus Alderw.

Somewhat robust, heterophyllous(?), root-climbing liane. Shoot system architecture not fully known, but flowering shoots free and lateral; eocaul and seedling not observed. LEAVES very stiffly chartaceous, drying orange-brown; petiole 1–4 × 0.2–0.25 cm, rather stout, ‘D’ shaped in cross-section, sheath barely prominent, extending c. 1 cm along petiole, soon falling; blade 12–28 × 4–7 cm, lanceolate to slightly oblanceolate, base, apex abruptly cuspidate-attenuate, mucronate; primary lateral veins prominent, arising at 70–80°, intramarginal veins 2 per side, the outer intramarginal vein remaining very close and parallel to margin, higher order venation prominently reticulate. INFLORESCENCE solitary, usually subtended by cataphylls on condensed short shoots arising from below the axils of distal leaves, held inverted beneath the shoot by reflexing of the peduncle; peduncle 12–45 × 0.1–0.15 cm, slender, reflexed 90° at the base, dark purple-green. Spathe 2.5–12.5 × 0.6–4 cm, triangular-lanceolate, spreading, base clasping the peduncle, apex acute, briefly apiculate, dull greyish-green, chartaceous. Spadix briefly (c. 1 mm) stipitate, (2.5–)6–7.6 × 0.3–0.6 cm, cylindrical to tapering-cylindrical, pale green. Flowers c. 1 mm diam., with 6 free tepals and 6 stamens. INFRUCTESCENCE not observed.