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(Last Modified On 3/28/2013)
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(Last Modified On 3/28/2013)
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Genus
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Mayna Aublet
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PlaceOfPublication
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Hist. P1. Gui. Fr. 921, pl. 352, 1775.
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Synonym
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Dendrostylis Karsten & Triana, Linnaea 28: 431, 18563.
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Description
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Shrubs or small to medium-sized trees. Leaves alternate, petiolate, the petiole pulvinate at the apex, the stipules early caducous, the blade entire-margined or the margins dentate. Flowers dioecious; staminate flowers axillary, in small fascicles or sometimes solitary; pistillate flowers axillary and usually solitary; sepals 3, imbricate; petals 6-9, imbricate, longer than the sepals; staminate flowers with so stamens, the filaments inserted on a scarcely thickened torus, free or almost so, pilose, the anthers linear, longitudinally dehiscent; pistillate flowers with the ovary echinulate, 1-locular, with 3 parietal placentas, the placentas multi-ovulate, the styles 3 or 4, each one 2-lobed, the lobes laciniate. Fruits baccate, globose, 3According to a note by A. Dugand in the U. S. National Herbarium the correct citation for Dendrostylis should read: Dendrostylis Karsten & Triana in Triana, Nuevos Generos i Especies di Plantas para la Flora Neo-Granadina 27, 1854 (Bogota). bristly, indehiscent; seeds so, the testa red or orange, fleshy; endosperm copious; embryo straight; cotyledons cordate.
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Habit
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Shrubs trees
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Distribution
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A small genus much in need of revision; about 15 species in tropical America, mainly in northern South America; two species reported from Panama.
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Note
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In the absence of fruits it is very difficult, if not impossible, to distinguish this genus from Carpotroche Endl.
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Key
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a. Leaf blades glabrous; staminate flowers with the sepals 5-7 mm long and with the petals 10-11.5 mm long; fruit to 2.5 cm in diam ....................... 1. M. longicuspis aa. Leaf blades with the upper surface sparsely hirtellous especially along the veins and with the lower surface softly hirsute; staminate flowers with the sepals to 8 mm long and with the petals 12-14.5 mm long; fruit to 1.5-2 mm in diam ......................... 2. M. zuliana
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