(Last Modified On 5/31/2013)
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(Last Modified On 5/31/2013)
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Species
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Jacquemontia agrestis (Mart. ex Choisy) Meisn.
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PlaceOfPublication
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Mart., Fl. Bras. 7: 306. 1869.
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Synonym
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Convolvulus agrestis Mart. ex Choisy in DC., Prodr. 9: 405. 1845. TYPE: Brazil, Bahia, St. Francisco, near Joazeiro, Martius (M, not seen; MO, photo). Jacquemontia secundiflora (Fern.) O'Donell, Lilloa 26: 354. 1953. TYPE: Mexico, Guerrero, near Acapulco, Palmer 32 (MO, isotype). J. guatemalensis Standl. & Steyerm., Publ. Field Mus. Nat. Hist. Bot. Ser. 23: 84. 1944. TYPE: Guatemala, Chiquimula, Steyermark 30066 (F, holotype, not seen).
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Description
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Vines; stems erect when young, climbing or decumbent when mature, pubes- cent. Leaves broadly ovate to narrowly lanceolate, 1-5.5 cm long and 0.5-3.5 cm wide, basally cordate or subtruncate, apically acute to acuminate, rarely obtuse, with glandular and/or stellate indument. Inflorescences axillary, lax, 2- 6-flowered monochasia, the peduncles pubescent. Flowers blue; sepals ovate, nar- rowly ovate or lanceolate, 3.5-6.5 mm long and 1-3 mm wide, attenuate, pubes- cent with glandular and/or stellate indument; corolla 0.6-1.2 cm long, interplicae glabrous; stamens unequal, the filaments basally glandular pubescent. Fruits capsular, subglobose, 4-5 mm in diameter, light brown, glabrous; seeds brown, 2-3 mm long, minutely areolate and strongly verrucate, with a small wing on the outer 2 margins.
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Habit
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Vines
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Note
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This species flowers from September to March.
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Distribution
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occurs from Arizona to Argentina and also in Cuba.
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Note
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This species is often confused with Jacquemontia sphaerostigma. The best way to distinguish them is by the inflorescence, lax in J. agrestis and subum- belliform in J. sphaerostigma. Apparently J. agrestis is represented in the dif- ferent parts of its range by a number of variable populations. The species ap- pears to be rare in Panama.
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Specimen
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LOS SANTOS: Managre Beach 5 mi. SE of Chitre, Tyson, Dwyer & Blum 2894 (MO).
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Tag
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Project Name
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