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(Last Modified On 6/14/2013)
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(Last Modified On 6/14/2013)
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Genus
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Ichthyothere Mart. in Buchn.
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PlaceOfPublication
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Repert. Pharm. 35: 195. 1830.
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Note
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TYPE: I. cunabi Mart.
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Description
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Herbs, subshrubs or shrubs; stems glabrous, scabrous or hirsute. Leaves opposite, sessile, or shortly petiolate, entire to subdentate. Infloreseence a crowded, terminal, small cymose panicle. Heads inconspicuously radiate, small, sessile or short-peduncled; involucre disciform., ovoid, or globose, the, bracts bi- to multiseriate, small, the inner bracts subtending and slightly adhering to ray achenes; recepitacle oblong or linear; paleas broad, imbricate, subtending, the disc florets; ray florets few, fertile, the corollas tubular, yellow to white, the 3-4 lobes small, the abaxial side often densely pilose in a ring, the styles bifid; disc florets perfect but sterile, the corollas tubular, yellow to white, the lobes 5, the anthers 5, the style undivided, the ovary filiform, sterile. Achenes obovoid, thick, radially compressed, adaxially subplanar, smooth or costate, glabrous; pappus absent. Chromosome number n = ca. 33.
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Habit
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Herbs
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Distribution
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A genus of approximately 10 species, Ichthyothere is found principally in the South American tropics.
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Note
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At least one of the species, I. terminalis (Spreng.) Malme, is used as a fish poison by natives in the lower Amazon.
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