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(Last Modified On 9/30/2013)
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(Last Modified On 9/30/2013)
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Species
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Galactia striata (Jacq.) Urban
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PlaceOfPublication
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Symb. Ant. 2: 320. 1900.
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Synonym
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Galactia striata Jacq., Hort. Bot. Vindob. 1: 32, tab. 76. 1770 [1771]. TYPE: Jacquin (BM, not seen). Galactia tenuiflora (Willd.) Wight & Am., Prod. Fl. Penin. Ind. Orient. 1: 761. 1842. Galactia striata var. tenuiflora (Willd.) Burk., Darwiniana 16: 721. 1971.
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Description
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Trailing or prostrate perennial vine, not rooting at the nodes; stems pubescent to tomentose with weak hairs to 1.5 mm long. Leaves pinnate trifoliolate; leaflets about equal or the lateral pair slightly shorter, symmetrical, ovate, mostly 3-6 cm long, 2-3 cm wide, apically obtuse, minutely emarginate and mucronulate, basally rounded, slightly discolorous, thin pilose with loose hairs, more so be- neath, often glabrescent above, the costa and 4 main veins on each side prominent beneath, often glabrescent above, the costa and 4 main veins on each side prom- inent beneath; petiolules ca. 2 mm long, often conspicuously 2-angled; foliar rachis 5-8 mm long; petiole mostly shorter than the leaflets; stipels glabrous, ca. 1 mm long; stipules 1-2 mm long, pilose. Racemes mostly solitary, lax, open, 5- 10 cm long, the peduncle and rachis pubescent; pedicels 1-2 mm long, 1-3 arising at a node, puberulent, the bracts ca. 1 mm long, cucullate, pubescent. Flowers 8-10 mm long, pink, mostly drying white, the calyx puberulent, deeply 4-fid, the lobes narrowly acute; corolla exserted ?2-?3 way from the calyx, the standard reflexed, glabrate, the wings about as long as the standard, broad; anthers linear, 0.6 mm long, versatile; ovary linear, tomentose, the style glabrous, the stigma minute. Legume flat, oblong, sometimes falcate, mostly 3-5 cm long, ca. 5 mm wide, the margins thick, straight or slightly undulate between the seeds when young, the persistent style forming a small beak, sessile in the calyx, softly pilose on the valves, and on the margins with minute straight whitish hairs, the valves separating and ultimately curling; seeds mostly 5-8, ovoid, oblique, 3.5-5.5 mm
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Habit
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vine
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Description
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long, dark brown and mottled, the hilum short, surrounded by the small light colored, usually caducous aril.
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Distribution
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Galactia striata is common in disturbance in lowland Panama, and it ranges from the United States to Argentina and is naturalized in much of the palaeotropics.
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Note
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The small but bright pink flowers are usually seen singly on fencerows and in thickets. Several varieties have been distinguished in this species, but their identity and variability are not well understood. Much material from Africa and Central America has been known as Galactia tenuiflora or G. striata var. tenuiflora, but this may not represent a distinct taxon.
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Specimen
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CANAL ZONE: Pipeline road, 1.2 mi NE of Gamboa gate, Croat 12735 (MO, NY). Curundii, D'Arcy 13428 (MO). Albrook Site, U.S. Army Tropic Test Center, Dwyer 7118 (MO). 0.5 mi W of Summit, McDaniel 12717 (FSU, MO). Rio Agua Salud near Frijoles, Piper 5149 (US). Red Tank to Pueblo Nuevo, Piper 5166 (US), 5167 (MO). Cerro Gordo near Culebra, Standley 26030 (US). Sosa Hill, Balboa, Standley 26470 (US). Summit, Standley 26939, 26956, 29617, 30057 (all US). Farfan Beach area, Tyson 1805 (MO). Howard Air Force Base at Red Devil drop zone, Tyson 1846 (MO). Curundi, Tyson 6428 (FSU, MO, SCZ). CHIRIQUf: Veradero, 0-100 m, Burt & Koster 124 (MO). 1 mi W of airport at Puerto Armuelles, sea level, Croat 21913 (MO). Quebrada Quanabanao, Distrito Guanano, 0-100 m, Croat 22507 (FSU, MO). DARIEN: Punta Garachin6, Duke 10484 (MO, NY). HERRERA: 10 mi S of Ocii, Tyson et al. 2811 (MO, SCZ). LOS SANTOS: Monagre Beach 5 mi S of Chitr6, Tyson et al. 3009 (GH, MO). PANAMA: Without other locality, Duchassaing 1850 (GH). Beach at Nueva Gorgona, Duke 4559 (MO). Bella Vista, Heriberto 227bis (US); Killip 12198 (US). San Jose Island, Johnston 161, 1103 (both GH). San Jose Island, Johnston 364 (GH, MO, US). Between Savanas and Rio Yguana, Macbride 2650 (F). Bella Vista, Standley 25301 (US). Taboga Island, Standley 27972 (US). Between Matias Hernindez and Juan Diaz, Standley 32009 (US). Playa Co- ronado, Taylor 85, 186 (both PMA). SAN BLAS: Ailigandi River, Duke & Bristan 330 (MO). VERAGUAS: Trail between Cafiazas and foot of Cordillera Central, 300-600 m, Allen 192 (US). Puerto Mutis, 12 mi S of Santiago, Tyson 6002 (FSU, MO, SCZ).
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