Ginalloa flagellaris

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Ginalloa flagellaris


Plant slender to moderately robust, pendulous, to 0.6 m long. Leaves mostly rudimentary or sometimes rudimentary and normally developed in successive pairs; normally developed leaves often falling early, narrowly to broadly elliptic, attenuate or cuneate at the base to an obscure petiole 5-10 mm long, attenuate to acuminate and acute at the apex, 5-nerved, with veins visible on both sides, 80-160 by 25-60 mm; rudimentary leaves 0.8-1.5 mm high. Inflorescencess commonly terminal, often in threes, also axillary, often branching near the base, often not strongly differentiated from vegetative stems, 80-200 mm long, a spike of 15-25 pairs of triads; internodes 8-15 (-20) mm long; bracteal cup c. 1 mm long, spreading; bracteoles densely fimbriate, forming a tuft of white hairs surrounding the flowers. Fruit ellipsoid, smooth, white.


Asia-Tropical: New Guinea present, New Britain present
Malesia: New Guinea, New Britain.


Geographically replaces G. arnottiana, from which it is possibly derived but distinct in several characters, including larger and fewer normally developed leaves not undulate, longer inflorescences and inflorescence segments, and especially the white fruits. Ginalloa flagellaris is also distinct in its densely fimbriate bracteoles, forming a tuft of white hairs surrounding the flowers; the occurrence of this character in G. arnottiana in the Solomon Islands may be a result of introgression.