Melanococca Blume

Dioecious trees with white exudate turning black with exposure to air. Leaves alternate, imparipinnate, petiolate; leaflets petiolulate, entire; tertiary and quaternary veins freely ramified (i.e. no areolation). Inflorescences terminal and/or axillary panicles, branches tomentose. Flowers short pedicellate; perianth 5-parted, imbricate; sepal margins pubescent; corolla cream-white, rarely pink; petals basally hairy adaxially; androecium haplostemonous; anthers dorsifixed; pistillode reduced; staminodes reduced; disk glabrous, 10-lobed; carpels 3; style obscure; stigmas 3, more or less united; ovule basal. Drupe subglobose, 1-locular; exocarp black, not separating from mesocarp when ripe; stigmas persistent in fruit.

A single species, M. tomentosa (= Rhus taitensis), in Australia (Queensland), Philippines, and Java east to Tahiti. Melanococca is segregated from Rhus on the basis of having a black exocarp that does not separate from the mesocarp at maturity.

Original Publication: Melanococca Blume, Mus. Bot. Lugd. Bat. 1: 236 (1850).

Synonyms: Duckera F.A. Barkley (1942).
Rhus sect. Melanocarpae Engl. (1881)
Rhus subg. Melanococca (Blume) Brizicky (1963)

Web Links:
Tropicos – Melanococca