Home Brassicaceae
About
Name Search
Genera
Species List
Boechera pygmaea (Rollins) Al-Shehbaz Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Novon 13(4): 388. 2003. (Novon) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

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

Export To PDF Export To Word

83. Boechera pygmaea (Rollins) Al-Shehbaz, Novon 13: 388. 2003; Arabis pygmaea Rollins, Rhodora 43: 476. 1941. TYPE: United States, California, Tulare Co., Basin of the Upper Kern River at Volcano Meadows (originally known as Whitney Meadows, 8500 ft, 21 Jul 1904, H. M. Hall & H. D. Babcock 5465 (holotype, GH!; isotypes, E!, MO!, NY!, OSC!, US!).

     Plants mostly long-lived perennials, with woody caudices, often with crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 2–5 per caudex branch, arising near ground surface from margin of basal rosettes or laterally below sterile shoots, 2–8 cm, lower parts with simple and short-stalked, 2–3-rayed trichomes to 0.4 mm, upper parts glabrescent. Leaves at stem bases linear, 0.8–1.5 mm wide, entire, ciliate with simple and spurred trichomes to 0.8 mm, blade surfaces moderately pubescent with short-stalked, 2–4-rayed trichomes 0.05–0.40 mm; cauline leaves 2–4, not concealing stem, the uppermost pubescent, lacking auricles. Inflorescences unbranched, 2–5-flowered; fruiting pedicels 2–7 mm, erect to ascending, straight, with subappressed, branched trichomes or rarely glabrous. Flowers erect at anthesis; sepals pubescent; petals white, 3.5–5.0 ´ 0.7–1.0 mm, glabrous; ovules 8–12 per fruit. Fruits 1.3–3.3 cm ´ 4–5 mm, erect to ascending, often appressed to rachises, not secund, straight, with parallel edges, glabrous; style 0.05–0.40 mm. Seeds uniseriate, 3–5 ´ 2.5–4.5 mm; wing continuous, 0.8–2.0 mm wide distally.

Flowering: May–Jul.

Habitat: barren flats of arkosic gravel.

Elevation: 2400–3200 m.

Distribution: United States (California/Inyo and Tulare counties).

Reproductive mode: sexual diploid.

 

 

 
 


 

 
 
© 2014 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110