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(Last Modified On 3/7/2013)
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(Last Modified On 3/7/2013)
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Genus
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GUAREA Allemand ex L.
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PlaceOfPublication
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Mant. P1. 150, 228. 1771, nom. gen. conserv.
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Synonym
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Samyda L., Sp. P1. 443. 1753. Ruagea Karst., Fl. Columb. 2: 51, pl. 126. 1863. Sycocarpus Britt., Bull. Torrey Bot. Club 14: 143. 1887.
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Description
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Trees or shrubs, the Panamanian species all generally tree-like, but may be shrubby from stump sprouts. Leaves pinnate-compound, only rarely with a terminal leaflet, the leaflets opposite or alternate. Inflorescences axillary. Flowers perfect; calyx saucer to cup-shaped or of 5 nearly distinct sepals; petals 4-6; staminal tube urceolate or cylindric, entire or shallowly lobed, anthers 8-12, included or, rarely, barely exserted; -ovary 4- to 12-celled, the ovules 1 or 2 per cell, superposed. Fruit a thick or woody-valved capsule loculicidally dehiscent (sometimes tardily so) from the apex; seeds 1 per capsule or 1-2 per locule, more or less arillate, cotyledons fleshy.
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Habit
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Trees or shrubs
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Distribution
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As in other genera in the family, the infrageneric taxa are frequently indis- tinctly separated in Guarea. While descriptions for 80 or more species have been published, the number of readily recognizable species is probably less than 35.
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Key
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a. Ovary glabrous or sparsely pubescent. b. Leaflets about 3 times longer than broad; veins generally light in color; capsule to 2 cm. in diam.; seeds entirely covered with a red aril- .1. G. GLABRA bb. Leaflets about twice as long as broad; veins generally dark in color; capsule to 4 cm. in diam.; seeds only about 4/5 covered by a red aril- 2. G. KUNTHIANA aa. Ovary densely pubescent or sericeous. c. Inflorescence glabrate or only sparingly pubescent; calyx shallowly cupulate, frequently deeply lobed; capsule globose to fig-shaped, usually lenticellate, about 1.5 cm. in diam. 3. G. GUIDONIA cc. Inflorescence sparsely to densely pubescent; calyx deeply cupulate, usually shallowly lobed; capsules elenticellate. d. Leaflets pubescent along the veins above and below, frequently villose over the entire under surface of the blade; capsule globose, often densely velutinous, to 2.5 cm. in diam. 4. G. TONDUZII dd. Leaflets only puberulent on the veins above and below or glabrous, the blades sometimes scattered papillose; capsule fig-shaped, pulverulent, to 3 cm. in diam. and 3 cm. long- - . 5. G. MULTIFLORA
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