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(Last Modified On 4/9/2013)
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(Last Modified On 4/9/2013)
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Genus
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Thevetia Adans
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PlaceOfPublication
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Fam. P1. 2: 171. 1763.
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Synonym
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Plumeriopsis Rusby & Woodson, Ann. Missouri Bot. Gard. 27: 11. 1937.
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Description
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Trees, shrubs or rarely lianas, lacticiferous. Leaves spiral, non-glandular, pinnately-nerved, frequently coriaceous and lustrous; sessile to petiolate, mostly
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Habit
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Trees, shrubs or rarely lianas
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Description
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with intrapetiolar glands. Inflorescences cymose to racemose, axillary or terminal, few- to several-flowered. Flowers medium-sized to large, frequently showy; brac- teoles present; calyx 5-lobed, the lobes ? equal, bearing many squamellae with- in; corolla salverform to infundibuliform, white, cream, orange, or pinkish-yellow, the orifice closed by 5 appendages, the limb 5-lobed, sinistrorsely convolute; sta- mens 5, wholly included, the anthers free and not agglutinated to the stigma, without an enlarged connective; gynoecium 2-carpellate, apocarpous, the ovary superior, the ovules 2-4, the nectary annular, the style 1, the stigma umbraculi- form below and bifid above. Fruit syncarpous, drupaceous, or berry-like, the peri- carp coriaceous; seeds 2-4, ovoid, naked.
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Distribution
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A genus of about six species in tropical America; frequently cultivated be- cause of the handsome flowers.
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Note
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The two species found in Panama had been placed in separate genera by Woodson (N. Amer. Fl. 29: 131-133. 1938), but I do not recognize Plumeri- opsis.
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Key
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a. Leaves narrowly-lanceolate, mostly less than 1 cm wide, crowded ........... 1. T. peruviana aa. Leaves ? obovate, at least some > 5 cm wide, not crowded ..... ....... 2. T. ahouai
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