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(Last Modified On 3/20/2013)
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(Last Modified On 3/20/2013)
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Genus
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Pera Mutis
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PlaceOfPublication
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Vet.-Akad., Stockholm, Nya Handl. 5: 299, t. 8, 1784.
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Description
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Trees; dioecious or rarely monoecious. Leaves alternate, simple, petiolate; stipules small or obsolete. Inflorescences axillary consisting of small clusters of stalked globose involucres each enclosing 3-10 sessile flowers; involucres 1-2 bracteolate at base, opening laterally at anthesis or valvate or, in one species, almost lacking. Staminate flowers 3-10, not all fully formed; calyx gamosepalous with 3 acuminate lobes; stamens 2-5, the filaments short and free or longer and basally connate, the anthers dorsifixed near base and longitudinally dehiscent; pollen grains prolate, tectate, 3-colporate. Pistillate flowers 2-5; naked; ovary 3- carpellate each with a single ovule, the 3 short styles connate basally. Fruit capsular, somewhat woody, dehiscence valvate; seeds ovoid or obovoid, compressed, smooth, shiny, carunculate.
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Habit
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Trees
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Distribution
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A tropical American genus of about 25 species, two of which are reported from Panama.
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Key
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a. Involucre well developed, enclosing flower buds before anthesis ................ 1. P. arborea aa. Involucre absent or represented by a minute scale ............................................ 2. P. aperta
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