1921] Smiley: Flora of the Sierrw Nevada of California 203 



6. SISYMBRIUM 



1. Sisymbrium incisum Engelm., in Gray, PL Fendl., p. 8. 1849. 



Type locality. — "Santa Fe Creek and Mora River," New Mexico. 



Range. — British Columbia to Manitoba, south to Mexico. 



Zone. — Arid Transition and above. 



Speciynens examined. — Lower end of Donner Lake, Heller 6957 ; 

 Twin Lakes, Alp,ine County, Hansen 569 ; Suzy Lake, Tahoe, 7,500 

 feet. Smiley 180; Mt. Tallac, 9,500 feet. Hall and Chandler 4609; 

 Mt. Dana, H. M. Evans, July, 1901; same locality, Brewer 1745; 

 Olancha Mountain, Tulare County, common at 8-9,000 feet. Hall 

 and Babcock 5293. 



Brewer 1745 is the basis for Smelowskia? calif ornica Gray (Proc. 

 Am. Acad., vol. 6, p. 520. 1866), with type locality "On Mount Dana, 

 alt. 10,000 feet, June, in flower; and near Mono Lake, alt. 6,450 feet, 

 July, with young fruit" — indicating about the zonal range of this 

 widely spread species. 



The vars. Sonnei Robinson and filipes Gray appear to be exclusively 

 Transition or lower, at least as to our range. 



7. CARDAMENE 



Leaves all simple 1. C. Lyallii 



Middle cauline leaves pinnate 2. C. Breweri 



1. Cardamine Lyallii Wats., Proc. Am. Acad., vol. 22, p. 466. 



1887. 



Type locality. — "Banks of the Ashtnola, Cascade Mountains." 



Range. — Southern British Columbia to the central Sierra Nevada 

 (Tahoe) and east to the Clover Mountains, Nevada, According to 

 0. E. Schulz, also in Utah. 



Zone. — Transition, rising locally into the Canadian. 



Specimens examined. — Along shady streams. Placer County, near 

 Truckee, C. F. Sonne 28 ; Galena Creek, "Washoe County, Nevada, 

 8,(T00 feet, P. B. Kennedy. 



0. E. Schulz^''*' reduces this to a subspecies of C. cordifolia, which 

 in the typical form ranges from Idaho to New Mexico. 



2. Cardamine Breweri Wats., Proc. Am. Acad., vol. 10, p. 339. 



1875. 



C. orbicularis Greene, Pitt., vol. 4, p. 202. 1901. 



Type locality. — "Near Sonora Pass, at 8-10,000 feet altitude." 

 Brewer. 



