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(Last Modified On 6/14/2013)
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(Last Modified On 6/14/2013)
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Species
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Ichthyothere scandens Blake
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PlaceOfPublication
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Jour. Wash. Acad. Sci. 11: 301, fig. 1. 1921.
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Note
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TYPE: Colombia, Tolima, in forest at Libano, 1100-1300 m, 26-29 Dec 1917, Pennell 3430 (US, holotype, not seen; NY, isotype, not seen).
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Description
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Slender shrub 1 m tall; stems at least 5 mm diam., glabrate below. Leaves narrowly ovate to ovate; blades 5.5-22 cm long, 2-10 cm wide, acuminate, the base attenuate, the margin denticulate, both surfaces glabrate, strigillose when young; petioles 3-50 mm long, 1 mm diam., glabrate. Inflorescence a cymose panicle with 10-30 heads; peduncles 1-5 mm long, becoming strigillose. Heads radiate; involucre cupulate, 4-5.5 mm diam., biseriate, the outer bracts 4-6, nar- rowly ovate to ovate, 1-1.2 mm long, 0.6-1 mm wide, abaxially glabrate, ciliate toward the apex, the inner bracts 2, conduplicate around the ray florets, obovate, glabrate, to 6 mm long and 3 mm wide, the apex rounded; paleas scarious, obovate toward the outside of the head, becoming oblanceolate within, 2-2.8 mm long, 1-2 mm wide; ray florets 2, the corollas 1.3 mm long, 0.3 mm diam., pilose on abaxial side, the styles with branches 0.8 mm long; disc florets ca. 10, the corollas yellow, 2 mm long, the throat 1 mm long and 0.7 mm diamn., the lobes 0.4 mm long, the tube 0.2 mm diam., the anthers light brown, 1 mm long, the style filiform, 2 mm long with a 5-lobed nectary at the base, the ovary 0.5 mm long, 0.2 mm diam. Achenes with up to 10 longitudinal ridges, 4 mm long, 3 mm wide; pappus absent. Chromosome number unknown.
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Habit
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shrub
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Note
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In Panama, Ichthyothere scandens can easily be distinguished from species of the related genus, Clibadium, by the former's few-headed inflorescence and markedly biseriate involucres. In Panama it has been collected in flower from December to March but in other areas it flowers throughout the year.
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Specimen
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DARIEN: Summit of Cerro Pirre, 1000-1400 m, Gentry & Clewell 6977 (MO). Crest, Cana-Cuasi Trail, 5500 ft, Terry & Terry 1601 (F, MO).
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