Micronychia, Oliv.

Randrianasolo, Armand, 2000, A taxonomic revision of the Malagasy endemic genus Micronychia (Anacardiaceae), Adansonia (3) 22 (1), pp. 145-155 : 146

MICRONYCHIA Oliv.

Hook. Icon. Pl., ser. 3, 14: 27 (1881).

TYPE. — Micronychia madagascariensis Oliv.

Dioecious trees 3-20 m tall. Leaves alternate, simple, coriaceous, subcoriaceous or chartaceous, persistent, venation pinnate and craspedodromous or camptodromous, midvein prominent on the undersurface, secondary veins arcuate and prominent on the undersurface, forming an obtuse angle with the midrib toward leaf base. Inflorescence an axillary, subterminal or terminal, pendent panicle, pubescent. Flowers 5-merous, rarely 4- or 6-merous, unisexual, red or pink; calyx imbricate; corolla much larger than calyx, imbricate or quincuncial; stamens alternipetalous, the filament inserted basally on the outer surface of the disk, glabrous, sigmoid or reverse S-shaped (except in M. tsiramiramy ) and long in male flowers, short, flattened, and broadened at the base in female flowers; anthers glabrous, dorsifixed, introrse, dehiscent by longitudinal slits, much smaller and sterile in female flowers; disk glabrous, dish-shaped in male flowers, annular and cup-shaped in female flowers; ovary unilocular, with one anatropous ovule with a long funicle, placentation parietal; the single long, trifid, lateral style with 3 capi- tate stigma lobes. Fruit drupaceous, one seeded, glabrous but with longitudinal striations, mesocarp resinous, pyrene with two well separated cotyledons.