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Published In: Phytologia 51(6): 369. 1982. (Phytologia) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 7/21/2009)

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16. Boechera crandallii (B. L. Robinson) W. A. Weber, Phytologia 51: 369. 1982; Arabis crandallii B. L. Robinson, Bot. Gaz. 28: 135. 1899. TYPE: United States, Colorado, Montrose Co., Cimarron, 7000 ft., 18 May 1898, C. S. Crandall 6 (holotype, GH!; isotype, NY!).

Arabis stenoloba Greene TYPE: United States, Colorado, Montrose Co., Cimarron, 6900 ft, 6 Jun 1901, C. F. Baker 21 (holotype, NDG!; isotypes, E!, GH!, K!, MO!, NY!, POM!, RM!, 2US!, WS!).

     Plants long-lived, often cespitose perennials, with somewhat woody caudices, usually lacking crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 2–5 per caudex branch, arising near ground surface from margin of basal rosettes, (1.0–)1.5–4.0 dm, lower parts with abundant, short-stalked, 5–8-rayed trichomes 0.1–0.2 mm, upper parts moderately to sparsely pubescent. Leaves at stem bases narrowly oblanceolate, 1.5–3.0(–5.0) mm wide, entire, ciliate along petiole base with simple trichomes to 0.6 mm, blade surfaces densely pubescent with short-stalked, 5–8-rayed trichomes 0.1–0.2 mm; cauline leaves 5–14, not concealing stem, the uppermost pubescent, with auricles 0.1– 0.5 mm. Inflorescences mostly unbranched, 10–30-flowered; fruiting pedicels 5–10 mm, ascending to divaricate-ascending, straight, with branched trichomes. Flowers ascending at anthesis; sepals pubescent; petals usually white, 5–7 ´ 1–2 mm, glabrous; ovules 56–84 per fruit. Fruits 3.0–5.5 cm ´ 0.9–1.2 mm, ascending to divaricate-ascending, not appressed to rachises, not secund, straight, with parallel edges, glabrous; style 0.1–0.5 mm. Seeds uniseriate, 0.8–1.0 ´ 0.6–0.9 mm; wing continuous (rarely absent), to 0.1 mm wide. 2n = 14.

Flowering: May–Jun.

Habitat: rocky slopes and gravelly soil in sagebrush, mountain shrub, and open conifer forest. Elevation: 2000–2650 m.

Distribution: United States (Colorado).

Reproductive mode: sexual diploid.




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