|  | P.hamiltonii 
 | Habit         : | A climbing shrub often creeping on the ground, quite glabrous, branches subterete or angular. |  | Leaves     : | Petioled, coriaceous, elliptic or almost rounded obtuse or subacute 5-7-nerved from above the base, remarkably uniform, 5 - 7.5 by 2.5 - 12.5 cm., pale when dry, nerves strong, nervules transverse, base nearly equal, never cordate; petiole 1.25 - 2.5 cm. |  | Spikes      : | Bracts orbicular ciliate, fruiting spikes slender, fruit ovoid. Male spikes slender, 3.75 - 7.5 cm. Fruiting spikes 10 - 15 cm., flexuous; peduncle 1.25 cm., slender. |  | Flowers    : | 2-3-androus. |  | Fruits        : | Rachis glabrous, except the ciliate pits. | 
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