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(Last Modified On 9/18/2013)
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(Last Modified On 9/18/2013)
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Genus
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Spermacoce L.
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PlaceOfPublication
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Sp. P1. 102. 1753
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Note
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LECTOTYPE: S. tenuior L.
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Description
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Herbs, annual or perennial, the stems angled. Leaves linear or narrowly lan- ceolate; petioles short; stipules united to the petioles, the sheath with few to
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Habit
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Herbs
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Description
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numerous slender appendages. Inflorescences axillary, sessile, the flowers glo- merulate; bracts setaceous and filiform, subtending the inflorescences. Flowers small, the calycine cup scarcely measurable, the calycine lobes 4; corolla white or lavender, hypocrateriform to infundibuliform, the lobes 4, valvate; stamens 4, affixed variously in the corolla tube; stigmas connate or distinct. Fruits dry, the mericarps 2, unequal, each with a single seed, the smaller mericarp opening, the larger remaining closed; calyx persistent; seeds oblong.
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Note
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a genus of about 100 species,
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Distribution
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occurs in the tropics of the New World and the Old World.
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Note
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Few collections have been made in Panama.
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Reference
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Rendle, A. B. 1934. Linnaean species of Spermacoce. J. Bot. 72: 329. Rendle, A. B. 1936. Spermacoce remota Lam. J. Bot. 74: 10. Steyermark, J. 1972. Borreria. The botany of the Guayana Highland. Mem. New York Bot. Gard. 23: 813-814.
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Key
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a. Leaves scabrous above; calyx lobes ciliate; fruits pubescent ...... 1. S. confusa aa. Leaves glabrous above; calyx lobes glabrous on the margins; fruits glabrous ...... 2. S. tenuior
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