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Genus :

Alocasia (Schott) G. Don

Family :

ARACEAE

Description


Tall coarse perennial herbs, rootstock tuberous or forming short, stout caudex. Leaves stoutly petioled, lamina ovate-cordate, peltate. Inflorescence spadix, shorter than spathe, male and female inflorescences with usually interposed flat neuters, spathe stoutly  peduncled, spathe-tube thick, accrescent, persistent, mouth constricted. Flowers monoecious. Stamens 3-8, connate in obpyramidal column, anthers linear-oblong. Ovary ovoid or oblong, 1-locular or partially 3-4 locular above, ovules few, orthrotropous, style short or absent, stigma cushion-like, 3-6 lobed. Fruit a berry, obconic or oblong. Seeds oblong, sulcate.

Key to the species

Serial Key Reference
1a. Basal lobes of leaves connate for ¾ their length; leaveselongate-rhomboid, caudate-acuminate, contracted opposite the basal lobes. A. acuminata
1b. Basal lobes of leaves united for less than ½ their length 2
2a. Leaves broadly ovate; basal lobes rounded, connate for only 1/10 their length A. macrorrhiza
2b. Leaves ovate-lanceolate; basal lobes acute or obtuse but not rounded, connate for 1/3 to ¼ their length A. fornicata