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(Last Modified On 6/5/2013)
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(Last Modified On 6/5/2013)
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Genus
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Heterocondylus R. M. King & H. Robinson
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PlaceOfPublication
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Phytologia 24: 389. 1972.
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Note
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TYPE: Eupatorium vitalbae DC.
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Description
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Erect or climbing herbs, subshrubs or shrubs, sparingly branched. Lower leaves opposite, the upper leaves often alternate; the blades ovate to narrowly oblong, entire to serrate; petioles short. Inflorescence few to many branched, paniculate to cymose. Heads discoid with 20-80 florets; involucral bracts 15-30, imbricate to subimbricate, strongly unequal to subequal, in 3-5 series, spreading when mature; receptacle flat to slightly convex, glabrous; corolla narrowly funnelform, 5-lobed, the lobes triangular, usually distinctly longer than wide, smooth, glabrous or with a few glands, the corolla cells with mostly sinuous walls; anther collars often thickened above, the lower cells subquadrate or wider, the upper cells oblong to narrowly oblong, the cell walls with annulate thickenings, the anther appendage longer than wide; style base distinctly enlarged, glabrous or hirsute, the style branch broadly linear, smooth to short-papillose. Achenes with 5 ribs, the ribs with short bristles or glands, the lower part of achene long- tapered; carpopodium distinct, somewhat asymmetrical with sinuous trace, stopper-shaped, the cells subquadrate, in many series, with distinctly thickened walls; pappus bristles 20-30 in one series, scabrous, the apices unenlarged to gradually dilated, the apical cells acute.
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Habit
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herbs, subshrubs or shrubs
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Distribution
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Heterocondylus is a genus of about 12 species found mainly in Brazil. Only one species reaches northern South America and Central America.
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Reference
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King, R. M. & H. Robinson. 1972. Studies in the Eupatorieae (Asteraceae). CV. A new genus, Heterocondylus. Phytologia 24: 389-392.
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