Mimusops L.

Mimusops (en), Orchis militaire (fr), Casque militaire (fr), Orchis casqué (fr)

Genus

Angiosperms > Ericales > Sapotaceae

Characteristics

Trees or shrubs. Stipules caducous. Leaf-lamina frequently elliptic to obovate; upper surface often glossy, lower surface practically glabrous or pubescent in young leaves; midrib raised, primary lateral nerves finely raised on both surfaces, secondary lateral nerves inconspicuous, venation reticulate. Flowers usually in axils of current leaves, pedicellate. Sepals 8, arranged in two dissimilar whorls of 4, ± free or slightly fused at base; inner sepals smaller and paler in colour than outer. Corolla of 8 members, fused into a short basal tube, upper parts further subdivided into three segments giving 24 linear segments per flower. Stamens 8, epipetalous; anther dehiscence extrorse. Staminodes 8, alternating with stamens, usually simple, narrowly lanceolate or ligulate, densely pilose externally and along margins. Ovary usually 8-locular; ovules solitary, anatropous, with basal attachment. Fruit baccate, fleshy to ± coriaceous, 1-several-seeded, calyx persisting at base. Seeds ± ellipsoid, laterally compressed; testa horny and polished; scar ± basal to basi-ventral, usually (probably always in East Africa) small and scarcely longer than broad; abundant endosperm present; cotyledons flattened and foliaceous.
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Trees [shrubs]. Stems not armed, glabrate or hairy. Leaves persistent, alternate; stipules caducous; petiole present; blade: base rounded, cuneate, or attenuate, apex rounded, retuse, acute, or acuminate to cuspidate, surfaces glabrous or glabrate [hairy] abaxially, usually glabrous adaxially. Inflorescences fascicles or solitary flowers. Flowers: sepals 8 in 2 whorls of 4, outer valvate, larger, inner imbricate, [glabrate] densely hairy abaxially; petals (7-)8, white to yellow or pink, glabrous or hairy, lobes longer than corolla tube, each divided into 1 median and 2 lateral segments, median segment equaling or longer than laterals; stamens (7-)8, distinct distal to corolla tube; staminodes (7-)8, alternating with stamens, inflexed, petaloid, lanceolate, hairy; pistil (7-)8-carpellate; ovary (7-)8-locular, hairy; placentation basal or basiventral. Berries yellow to orange, subglobose, [glabrous] glabrate. Seeds 1[-6], [buff] brown to black, laterally compressed; hilum circular [elliptic]; embryo vertical; endosperm present. x = 12.
Staminodes 8, alternating with stamens, triangular, dorsally and marginally pilose, bending into the centre of the flower to form a conical sheath round the gynoecium.
Seeds ± ellipsoid, laterally compressed, with hard, highly polished testa; scar small, subcircular, basal or basi–lateral; endosperm abundant, cotyledons thin.
Corolla of 8 members joined in a short tube; each member comprising a median and two lateral segments, the latter usually entire, sometimes further divided.
Ovary shortly cylindrical or subglobose, ribbed, 8–locular, densely brownish appressed–pubescent; style cylindrical, ± truncate.
Sepals 8, in two slightly dissimilar whorls of 4, ± free; inner sepals smaller and paler than outer, and with ciliate margins.
Leaves exstipulate (or stipules soon caducous), thinly to strongly coriaceous, not clustered at ends of branches.
Fruits baccate, fleshy to ± coriaceous, sometimes edible, 1–several–seeded, with persistent calyx at base.
Stamens 8, opposing median segments, adnate to corolla tube; anthers extrorse, apiculate.
Flowers borne in axils of current leaves, pedicellate.
Trees and shrubs.
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