Home Brassicaceae
About
Name Search
Genera
Species List
Streptanthus oliganthus Rollins 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: Contributions from the Dudley Herbarium 3(11): 372–373. 1946. (Contr. Dudley Herb.) Name publication detail
 

Project Name Data (Last Modified On 7/24/2009)
 

Export To PDF Export To Word

28. Streptanthus oliganthus Rollins, Contr. Dudley Herb. 3: 372. 1946. United States, California, Mono Co.: rocky slope, 2 mi. NW of Masonic, N of Masonic Peak, 8100 ft., 3 Aug 1945, Ira L. Wiggins & Reed C. Rollins 535 (holotype, DS!; isotypes, 2GH!, NY!, UC!).

Streptanthus cordatus var. exiguus Jepson, Fl. Calif. 2: 29. 1936. TYPE: United States, California, Sonora Pass, 10,000 ft., 16 Jul 1863, W. H. Brewer 1885 (holotype, UC!; isotypes, CAS!, GH!, MO!).

     Herbs, perennial, glabrous throughout except for petioles of basal leaves, glaucous; caudex simple or few branched. Stems 1.5–4(–5) dm, simple or rarely few branched. Basal leaves rosulate, with wingless or rarely narrowly winged, setose-ciliate petioles, narrowly oblanceolate to lanceolate, 4–10 cm, entire; middle cauline leaves oblong-lanceolate, 2.5–8 x 0.5–1.6(–2.5) cm, sessile, auriculate, entire, obtuse to acute at apex, not overlapping; upper leaves smaller in size, reduced. Racemes ebracteate, lax, without a terminal cluster of sterile flowers; fruiting pedicels divaricate-ascending, straight, 3–10 mm. Flowers: sepals forming campanulate calyx, purple, broadly oblong, 5–8 mm, not keeled, glabrous; petals maroon-purple, 9–12 mm; blade 2–4 x 0.7–1 mm, not crisped; claw purplish, 6–8 mm, wider than blade; filaments in 3 pairs of unequal length, free; adaxial pair 7–9 mm; abaxial pair 5–7 mm; lateral pair 3–5 mm; anthers 2.5–4 mm. Fruits 4.5–9.7(–10.5) cm x 2–2.7(–3) mm, ascending to divaricate-ascending, flattened, straight, not torulose; valves glabrous, with a distinct midvein; gynophore 0.5–1 mm; replum straight; style 0.1–1 mm; stigma entire; ovules and seeds (42–)48–60 per fruit. Seeds oblong, 2–2.5(–2.7) x 1.5–2 mm; wing continuous, 0.2–0.4 mm wide.

Flowering: Jun–Aug.

Habitat: dry open pinyon woodland, pine forest, rocky subalpine forests, sagebrush.

Elevation: 2000–3050 m.

Distribution: United States (California/Mono Co., Nevada).

 

 
 


 

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