1921] Smiley: Flora of the Sierra Nevada of California 79 



2. Botrychium californicum Underw., Torreya, vol. 5, p. 107. 

 1905. 



B. Coulteri Undenv., Bull. Torr. Bot. Qub, vol. 25, p. 537. 1898. 

 B. ternatum var. australe D. C. Eaton, Ferns N, Am., vol. 1, pi. 20a, lower- 

 most figure only. 



Type locality. — "Quincy, Plumas County." Mrs. Austin. 



Range. — Northern Sierra south to the Kings Eiver region. 



Zone. — Transition and Canadian. 



Specimens examvmed. — Sierra County, Lemmon in 1874; Lily Lake, 

 Tahoe, at water's edge, 6,600 feet, Smiley 386; Mt. Silliman, Tulare 

 County, 9,000 feet, Mrs. Brandegee, August 24, 1905. 



This plant is very close to B. silaifolium Presl. (Rel. Haenk., vol. 1, 

 p. 76. 1830) and further study may show it to be only a form of 

 that species which ranges from British Columbia to California. 



3. EQUISETACEAE (Horse-tail Family) 

 1. EQUISETUM 



Sterile stem profusely branched; annual 1. E. arvense 



Sterile stem normally unbranched; perennial 2. E. hyemale 



1. Equisetum arvense L., Sp. PL, p. 1061. 1753. 



Type locality. — "Habitat in Europae agris, pratis. " 



Range. — Holarctic; south in America to Virginia, Colorado, and 

 California. 



Zone. — Transition and above. 



Specimens ex-aniined. — Trail to Pyramid Peak below a snow bank, 

 8,600, Smiley 108; Mineral King, Culbertson (B4558). 



2. Equisetum hyemale L., Sp. PL, p. 1062. 1753. 



Type locality. — "Habitat in Europae sylvis, asperis, uliginosis." 



Range. — North temperate zone. 



Zone. — Transition and Canadian. 



Specimens examined. — Ravine near Fallen Leaf Lake, Tahoe, 

 Smiley 360. 



S. H. Burnham (Plant "World, vol. 1, p. 10) reports finding on 

 Eagle Peak, above Yosemite Valley, at 8,000 feet, a plant probably 

 referable to this species. 



Equisetum laevigatum A. Br. (Am. Jour. Sci., vol. 46, p. 87. 

 1844) grows in the Sierra along streams below our border. 



