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P.aurantiacum
| Habit : | A rather stout climber, of yellowish colour when dry; branches not hard or woody, glabrous. Stems climbing and rooting glabrous.
| | Leaves : | All petioled, coriaceous, ovate elliptic- or orbicular-ovate caudate-acuminate, 5-nerved, hairy or glabrate beneath, base rounded or acute. Leaves are young trailing shoots with petioles 1.86 - 2.5 cm., upper surface almost shining; nerves very slender above, strong beneath base rounded or acute.
| | Spikes : | 3.75 - 7.5 cm., stigmas very minute, young fruit angular ripe globose, drooping, peduncle of both sexes about as long as the petioles; bracts peltate, quite glabrous; stamens 2, anthers reniform, cells confluent dehiscing across the tip; fruiting spikes variable in length.
| | Flowers : | Densely crowded.
| | Fruits : | Distinctly pyramidal when young and dry, when ripe about 0.42 cm. diam., not so crowded as usual in the section from many not ripening. |
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