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(Last Modified On 8/20/2013)
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(Last Modified On 8/20/2013)
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Species
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Cephaelis croatii Dwyer.
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Note
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TYPE: Panama', Croat 27204 (MO, holotype; NY, isotype).
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Description
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Shrubs 1.0-1.3 m tall, the branchlets glabrous, smooth, ultimately angular, the pith porate. Leaves elliptic oblong, 14.5-29.0 cm long, 5.5-9.0 cm wide, rounded or obtuse and abruptly acuminate at the apex, basally cuneate or atten- uate acute, somewhat inequilateral, the costa prominulous above, prominent be- neath, the lateral veins ca. 30, widely arcuate with an irregular vein between a pair of lateral veins, rigidly papyraceous, slightly discolorous, minutely puberu- lent; petioles 3-5 cm long, often twisted, to 0.25 cm wide, glabrate; stipules connate, often turgid, ovate oblong or oblong-rotund, to 1.5 cm long, narrow toward the apex, then each part splitting into 2 subulate or narrowly oblong ascending lobes, these to 0.7 cm long, subcoriaceous, glabrous. Inflorescences axillary, 5-6 cm long, 3.0-5.5 cm wide, drying black, the peduncle to 3 cm long, to 0.3 cm wide, twisted, plano compressed, the flowers aggregated into heads, these 6-8, oblong or rotund, to 1.5 cm wide, sessile or on branchlets, variable in length, to 2 cm long, puberulent; bracts rotund, outermost 8-10 mm long, 8 mm wide, concave, carnose, minutely pubescent outside, minutely ciliolate within, purple. Flowers with the hypanthium short, the calycine cup cylindrical, ca. 0.5 mm long, turgid, petaloid, with a gland at the base of adjacent lobes, the lobes 5, triangular subulate or narrowly oblong, 0.6-1.0 mm long, obtuse, glabrous within, ciliate; corolla white, the- tube cylindrical, ca. 6.5 mm long, somewhat dilated below the middle, glabrous outside, villose within, the lobes 5, lanceolate, ca. 2.3 mm long, somewhat cucullate; stamens 5, the anthers oblong, 1 mm long, obtuse, the filaments short; style slender, somewhat expanded toward the apex, the stigmas 2, short, rotund, wider than the style. Fruits not seen.
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Habit
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Shrubs
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Distribution
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known only from Panama.
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Note
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It is named in honor of Thomas B. Croat, distinguished student of the flora of Panama. There are several distin- guishing characters: relatively broad leaves with numerous lateral veins; large bilobed stipules; and subrotund, capitate clusters of flowers, about 5 per head.
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Specimen
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DARIEN: Upper gold mining camp of Tyler Kittredge, headwaters of Rio Tuquesa ca. 2 air km from continental divide, Croat 27204 (MO).
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