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(Last Modified On 10/17/2013)
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(Last Modified On 10/17/2013)
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Species
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Mammea americana L.
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PlaceOfPublication
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Sp. P1. 512. 1753.
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Note
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TYPE: Antilles, herb. Linn. (LINN 675.1, not seen; MO, microfiche).
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Description
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Polygamous tree to 20 m tall, often narrow and densely leafy; sap yellow; twigs stout. Leaves broadly obovate or elliptical, apically rounded or slightly emarginate, basally rounded or obtuse, the margin minutely indurate, the costa subplane above, proximally canaliculate, conspicuously elevated and drying mi- nutely sulcate beneath; lateral nerves parallel, slightly ascending numerous in 2 similar series, 6-7 per cm (both series), anastomosing at the margin but not forming a submarginal vein, cross veins numerous, forming a rectangular retic- ulum, the areoles 1-2-punctate beneath, ca. 20 cm long, 10 cm wide; slightly discolorous, petiole stout, ca. 1 cm long, canaliculate above, the bases generally not connate or forming a petiolar ridge. Inflorescences 1-several flowers on twigs behind the leaves; pedicels stout, ca. 10 mm long. Flowers fragrant, the sepals 2, rotund, 10-15 mm long, cucullate, sometimes keeled coriaceous; petals ca. 6 white, spreading, rotund, shorter or longer than the sepals, stamens numerous, the filaments glabrous, slender, basally expanded and united into several whorls, the anthers of 2 longitudinal thecae separated by the undifferentiated connective; ovary pyriform, the style short, the stigma peltate, repand, centrally depressed. Fruit a large leathery globose berry to ca. 15 cm across, with thick brownish warty rind and thick fleshy orange or yellow pulp (mesocarp); locules 2-4, filled with the large, oblong slightly arcuate seeds 2.5-4 cm long which are covered with reddish brown fibrous material.
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Habit
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tree
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Note
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This species is sparingly cultivated in Panama, and Pittier (1912) reports hav- ing seen it wild in Veraguas. It is common in slightly drier regions of western Central America and in the Antilles, where it is sometimes cultivated as a spec- imen tree or for its fruit.
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Specimen
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CANAL ZONE: Cultivated, Barro Colorado Island, Croat 5787 (SCZ). PANAMA: Taboga Island, Standley 27054 (US).
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Tag
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Project Name
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