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(Last Modified On 1/11/2013)
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(Last Modified On 1/11/2013)
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Habit
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Herb shrub
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Distribution
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Wet places. Southern West Indies and Guatemala to Peru, Bolivia and Brazil.
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Specimen
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BOCAS DEL TORO: Old Bank Island near Chiriqui Lagoon, H. von Wledel 1884 and 2i62. COCLE: Penonome, R. S. Williams 392. CANAL ZONE: Chagres, Feudler 115.
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Species
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JUSSIAEA AFFINIS DC.
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PlaceOfPublication
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Prodr. 3:53. 1828.
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Synonym
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Jussiaea variabilis Mey. var. atfinis 0. Kuntze, Rev. Gen. P1. 1:251. 1891. Ludwigia aflinis Hara, Journ. Jap. Bot. 28:291. 1953. Jussiaea micropetala Martius, Flora 22: Beibl. 1:61. 1839. Jussiaea hexamera Miq., Ann. Sci. Nat., Ser. III, 1:36. 1844. Jussiaea ferruginea Rusby, Bull. N. Y. Bot. Gard. 8:110. 1912.
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Description
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Herbs or straggling half shrubs, 0.5-2.5 m. tall, supported by surrounding plants, openly branched, the branches slender, hirsute-pilose with brownish hairs, angled; leaves ovate to elliptic, acute at base and rather abruptly narrowed into petioles 3-10 (-25) mm. long, abruptly acute or obtusish at apex, membranaceous, entire, minutely pellucid-punctate, pilose on both surfaces, with 10-25 rather conspicuous veins on each side of midrib and rather inconspicuous submarginal vein; leaf blades 2-8 (-12) cm. long, 1.5-3 (-6) cm. wide, the uppermost somewhat smaller; flowers solitary in leaf axils; pedicels 1-3 mm. long; bracteoles at base of ovary, squamate, triangular, apparently adnate to stipules, less than 0.5 mm. long; sepals 5-6, lance-ovate, acute, 3.5-5 mm. long, 1.5 mm. wide, obscurely 3-nerved; petals yellow, narrowly obovate, 6-8 mm. long; disc elevated, pilose; stamens unequal, the filaments flattened basally, 1.5 and 3 mm. long; anthers ca. 1 mm. long; style 1.5-2 mm. long; stigma capitate, barely 1 mm. thick; ovary usually short-hirsute, linear, cylindrical, 5-6-nerved, 10-12 mm. long; capsules cylindrical, 10-12-nerved, 20-35 mm. long, 2.5-3 mm. thick; seeds thick-ovoid, yellowish, ca. 1 mm. long, obscurely cellular-pitted under magnification, the raphe one-third to one-fourth as wide as the body, seed enveloped in the horseshoe-shaped corky endocarp.
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