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(Last Modified On 4/5/2013)
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(Last Modified On 4/5/2013)
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Genus
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Trattinnickia Willd.
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PlaceOfPublication
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Sp. P1. ed. 4. 4: 887. 1805.
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Description
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Trees, bark with resinous ducts. Leaves alternate, odd-pinnate, scattered, chartaceous to coriaceous; leaflets 5-19, opposite, acuminate apically, margins
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Habit
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Trees
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Note
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Swart, and most other botanists, have spelled this name Trattinickia. However, as Little (Phytologia 18: 410. 1969) has indicated, Willdenow used the spelling Trattin- nickia in his original publication of the genus. The genus is named for the Austrian botanist Leopold Trattinnick (1764-1849), usually spelled Trattinick in the botanical literature. According to Barnhart (Biographical Notes Upon Botanists. 3: 398. 1965), "Pritzel and Neilreich spell this name Trattinick [as does F. A. Stafleu, Taxonomic Literature. 1967]; but on all his books and papers it appears invariably Trattinnick."
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Description
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entire to sinuous, the laterals inequilateral basally. Inflorescences axillary to sub- terminal or terminal panicles or thryses; plants dioecious or polygamous to mo- noecious. Flowers small, 3-merous, calyx synsepalous, irregularly 3-lobed, imbri- cate, the lobes persistent in fruit; corolla sympetalous, fleshy, more or less tubular, 3-lobed, induplicate-valvate, inflexed-apiculate; stamens 6, the filaments short and dilated, free, inserted on the base of the disc in staminate flowers and on the disc margin in carpellate flowers; disc annular, 6-lobed; gynoecium 3-carpelled, the ovary 2-3-lobed and -loculed, fleshy, surrounded basally by the disc, abortive in staminate flowers, the ovules apical, pendulous, 2 per locule. Fruits drupa- ceous, the exocarp membranaceous, the mesocarp thick and resinous; pyrenes (1-)2, 1-seeded, corregated, thick, and woody, nearly connate, separated only by a thin layer of mesocarp; endosperm absent, the cotyledons contortuplicate.
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Distribution
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A Neotropical, mainly South American, genus of about ten species occurring from Brazil and Peru northward to Panama and the West Indian island of St. Vincent. Two species occur in Panama.
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Note
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Trattinnickia panamensis Standley & Williams, described from Bajo Chorro, Chiriqui, is a member of the genus Guarea (Meliaceae). It is probably a synonym of G. tonduzii C. DC.
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Key
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a. Leaflets scabrous, rough to the touch; inflorescences sparsely hispidulous.... 1. T. aspera aa. Leaflets glabrous, not rough to the touch; inflorescences puberulent .... 2. T. burserifolia
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