(Last Modified On 5/8/2013)
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(Last Modified On 5/8/2013)
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Genus
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Rapanea Aubl.
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PlaceOfPublication
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Hist. P1. Gui. Fr. 1: 121. t. 46. 1775.
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Description
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Shrubs or trees, glabrous or pubescent. Leaves petiolate, sometimes lepidote or pubescent, entire or nearly so. Flowers small, unisexual or bisexual, 4- or 5-merous, axillary, often borne on short bracteate shoots, fasciculate, appearing glomerate by reduction of the inflorescence; sepals small, usually connate basally, imbricate or valvate, ovate or triangular, often ciliolate, usually punctate or puncticulate; petals connate below, spreading or recurved, usually lineate, often papillose on the margins; stamens borne in the throat of the corolla or above on corolla lobes, the filaments obsolete, the anthers sessile, dehiscent by introrse slits, abortive in carpellate flowers; ovary globose or ellipsoid, the stigma sessile in carpellate flowers, large, subcapitate, morchelliform, or lobed; ovules few, uniseriate. Fruit 1-seeded, dry or fleshy, the endocarp crustaceous to ligneous; seeds globose, smooth, intruded basally, the endosperm corneous, sometimes slightly ruminate, the embryo elongate, transverse, usually curved.
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Habit
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Shrubs or trees
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Distribution
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A genus of perhaps 200 species in the tropics and subtropics of both hemi- spheres. Five species are included from Panama, but additional species are represented by material inadequate for positive identification.
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Key
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a. Young branchlets and petioles pubescent. b. Leaves narrow, lanceolate or oblong-lanceolate, to 2.5 cm. wide, the apex usually acute or acuminate; stems and petioles short villous to villous- tomentose -------------------- 1. R. myricoides bb. Leaves wider, elliptic or oblanceolate, to 3.7 cm wide, the apex obtuse; apices of stems sparsely pubescent with short trichomes, the upper surface of petioles puberulent ............ 2. R. panamensis aa. Young branchlets and petioles glabrous. c. Pedicels 2-3 mm long; sepals to 1.4 mm long, acuminate; montane - 3. R. allenji cc. Pedicels 1-1.5 mm long or shorter; sepals not over 1 mm long, acute or rounded; middle altitudes or sea level. d. Leaves rounded apically, mostly obovate; sea level ..... 4. R. punctata dd. Leaves narrowed and acutish to obtuse apically, mostly oblong-elliptic; middle altitudes above 1000 m ..... 5. R. pellucido-punctata
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