Tropicos | Name - Chaunanthus acuminatus (Rollins) R.A. Price & Al-Shehbaz

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Chaunanthus acuminatus (Rollins) R.A. Price & Al-Shehbaz

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Published In: Novon 11(3): 330. 2001. (Novon)

Project Name Data (Last Modified On 7/23/2009)

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2. Chaunanthus acuminatus (Rollins) R. A. Price & Al-Shehbaz, Novon 11: 330. 2001; Iodanthus acuminatus Rollins, Contrib. Dudley Herb. 3: 212. 1942. TYPE: Mexico. Jalisco: Sierra Madre Occidental, San Sebastian, Arroyo Seco, thicket near stream, 15 Jan 1927, Ynes Mexia 1491 (holotype, UC!).

Herbs, perennial, sometimes subshrubs. Stems 1-2 m, woody at base, glabrous or sparsely pubescent. Leaves petiole slender, 1-2 cm; blade ovate to ovate-lanceolate, 4-15 x 1-5 cm, pubescent with simple and stalked, spurred or 2-rayed trichomes, base cuneate, margin denticulate, apex acuminate. Racemes terminal, ebracteate, simple; fruiting pedicels ascending to horizontal, glabrous, 6-10 mm. Sepals oblong, glabrous, 3-4 x 1.5-2 mm; petals yellowish, spatulate, 4-5 x ca. 1 mm; filaments ca. 2 mm; anthers oblong, ca. 2 mm. Fruits linear, 4-6 cm, spreading, terete, sessile; valves prominently veined, glabrous; style 1-2 mm. Seeds oblong, plump, wingless, ca. 2 mm; cotyledons incumbent.