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Description


Trees or shrubs, usually armed with stipular spines. Leaves simple, alternate, petiolate, mostly 3-nerved from the base. Flowers in axillary fascicles or peduncled cymes, bisexual. Calyx of 5-triangular sepals. Corolla of 5 petals or sometimes absent. Disc 5-10 lobed. Stamens 5, opposite to and enclosed in petals. Ovary 2-4 celled, styles 2-3, free or connate, with small papillose stigmas. Fruits drupaceous.

Key to the species

Serial Key Reference
1a. Plant armed, young shoots rusty pubescent or rusty tomentose 2
1b. Plants unarmed, young shoots glabrous Z. glabrata
2a. Flowers fascicled or in sessile axillary cymes 3
2b. Flowers in peduncled cymes arranged in large panicles 4
3a. Trees, leaf blade broadest at middle Z. mauritiana
3b. Scandent or erect shrubs, leaf blade broadest at lower part Z. oenoplia
4a. Leaves rusty tomentose beneath, petals absent Z. rugosa
4b. Leaves pubescent beneath, petals present. Spine single Z. funiculosa