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(Last Modified On 9/19/2013)
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(Last Modified On 9/19/2013)
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Species
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Oxalis barrelieri L.
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PlaceOfPublication
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Sp. PI. ed. 2. 1763.
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Note
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TYPE: Barrelier, Plant. Rar. Tab. 1139.
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Synonym
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Acetosella barrelieri (L.) Kuntze, Rev. Gen. PI. 1: 90, 92. 1891. Lotoxalis barrelieri (L.) Small, N. Amer. Fl. 25(1): 49. 1907.
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Description
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Erect herb or shrub to 1 m tall, pubescent; stems green or violaceous, pu- bescence white or yellowish hirsute, in part retrorse, the apex finely pubescent; internodes to 8 cm long, sometimes almost obsolete resulting in subopposite leaves, hairs at the insertion of the petioles straight; roots fibrous, branched; petioles ascendent, to 4 cm long, canaliculate, enlarged to the base, the margin of the groove ciliate; rachis to 15 cm long pubescent; petiolule fleshy, ca. 1 mm long, pilose. Leaves with leaflets varying in shape on the same plant, suborbic- ular, oblong, ovate to elliptic, 10-55 mm long, 8-25 mm wide, obtuse, seldom acute, the base acute, roundish or subpeltate, asymmetric, discolorous, glaucous above, hairs irregularly scattered, below caducous, the margin or only the base ciliate. Inflorescences of cymes taller than the foliage loosely 1-1 1(-30)-flowered; peduncles to 6.5 cm long, pubescent, bifid with branches to 3 cm long; bracts reddish, lanceolate or triangular, acuminate, ca. 2 mm long, pilose; pedicels to 2.5 mm long, articulate near the base; bracteoles smaller, appressed to the ped- icel. Flowers with the sepals light green, sometimes red-veined, 3-3.5 mm long, 1-1.5 mm wide, linear to ovate or oblong, acute, mucronate, pubescent, the margin hyaline; petals white or yellowish at the throat and base, the limb pink, obovate-subspatulate, clawed, 7-9 mm long, 3.5 mm wide, slightly notched; long- er stamens ca. 3 mm long, pubescent or glabrous, ligulate about the middle, the shorter stamens 1.5-2 mm long, glabrous; pistil 3.5-4 mm long, the ovary ovoid, glabrous, the carpels 3-4-ovuled, the styles pubescent, the stigma widened, bifid, subcapitate, papillose. Capsule ovoid 7-9 mm long; acute, rarely oblong, gla- brous, membranous, calyx to ?2 its length, the carpels (2-)3(-4)-seeded, inside setose pubescent; seeds brownish, ovoid-compressed, apiculate, 1.5-2 mm long, 8-ribbed in zig-zag, deeply transversally striate, finely tuberculate at the inter- sections.
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Habit
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herb or shrub
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Distribution
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This species occurs in tropical and subtropical America. It is introduced into some tropical places of the Old World.
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Specimen
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BOCAS DEL TORO: Road to "Bomba" Almirante, Blum 1316 (MO). Ojo de Agua, ca. 7 km W of Almirante, 190-220 m, Croat 38149 (MO). Near Milla 7.5, Croat & Porter 16284; Milla 10, 16344; Milla 7.5 16455; Milla 5, 16498 (all MO). Cerro Jefe, in cafetal, D'Arcy 3968 (MO, P). Changuinola, 0-100 m, D'Arcy 11168 (MO). Santa Rita Ridge, Lewis et al. 5245 (MO, P). Runway at Bocas, Lazor 2439 (MO). Zigla Road, junction of Changuinola and Tuibe Rivers, Lazor et al. 2512 (MO). CHIRIQUT: Between Cerro Punta and Bajo Grande, Croat & Porter 16095 (MO). Volcdn Chiriqui, Aguacatal 2000 m, Killip 3578 (F). COL6N: Santa Rita Ridge, 7 mi from Transisthmian highway, 650 ft, Wilbur 15034 (MO). Without locality: Seemann (BM, K).
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