220 University of California Publications in Botany [Vol. 10 



Fresno County, Hall and Chandler 28; below Sentinel Hotel, Yosemite 

 Valley, Hall 9130; Yosemite Valley, Hall 9207; Tuolumne County, 

 Hall I.ITO ; Iletch-IIetchy, Jepson 3409 ; grounds of Preston School, 

 Amador County, Braunton 1061a ; four miles east of Placerville, El 

 Dorado County, Heller 12553, " Acmispon aestivalis" ; Marston, 

 Plumas County, Hall 9387; east of Chieo, Heller 12651, "Acmispon 

 sparsiflorus" ; Chico, Butte County, Heller 11132; Dry Creek, Butte 

 County, Heller 11692; Table Mountain, Olive Ranch, Heller 11146, 

 "Acmispon aestivalis"; Mud Flat on the Newville-Covelo road, Glenn 

 County, Heller 11531 ; lied Bluff, T. S. Brandegee, September 20, 

 1892 ; near Pitt River Ferry, Shasta County, Brown 223. 



Var. minutiflorus Ottley n. nom. Less robust than the species, 

 usually decumbent, pilose to nearly glabrous ; peduncles reduced or 

 longer than the leaves ; flowers 4 to 5 mm. long. Undoubtedly but 

 little more than a reduced form growing at high altitudes and under 

 other unfavorable conditions. Distribution Map 5. The various com- 

 binations of the different characters render it impossible to separate 

 this small-flowered group into clean cut divisions. June-July. 



Localities. — Between Bartlett Springs and Allen Springs, Lake 

 County, Heller 12366 ; Uncle Sam Mountain, Lake County, Jepson, 

 July-August, 1892; Fort Bragg, Mendocino County, Ottley 1546a, 

 1552 ; Eureka, Humboldt County, Tracy 3807, 4583, 3536 ; ocean beach 

 at Humboldt Bay, Tracy 5092; Crescent City, Del Norte County 

 Davy and Blasdale 5945b ; in dry swale, near Yreka, Siskiyou County, 

 Butler 390; Sisson, Setchell and Dohie, July 21, 1902; on low sandy 

 moist lava beds, Modoc County, M. S. Baker, June-August, 1893 ; west 

 shore. Egg Lake, Modoc County., 31. S. Baker in 1893 ; American 

 Valle}', Plumas County, Austin 376; Butte Meadows, Butte County, 

 Heller 12826, "Acmispon mollis"; Forest Ranch, Btitte County, 

 Heller 11625, "Acmispon mollis"; Chico Meadow^s, Heller 11615; 

 Bear Valley, Nevada County, Jepson, July 21, 1898 ; lower end of 

 Donner Lake, Heller, 7019, duplicate of type of Acmispon glahratus 

 Heller (calyx teeth shorter and broader than in typical L. ameri- 

 canus) ; Truckee, Heller 7059 (duplicate of type of Acmispon 

 pilosus) ; Sierra Nevada Mountains, Placer County, Carpenter, 

 August, 1892 ; Blue Canon, Placer Countv, Walker 1243 ; near Cisco, 

 Placer County, Hall 8734, 8733; roadside near Tallac, El Dorado 

 County, Ottley 1200 ; roadside. Fallen Leaf, Ottley 875, 843 ; Myers, 

 Ottley 938; Antelope, Amador County, Hansen 335; Alpine County, 

 Hansen in 1892; Kennedy Meadow, Tuolumne County, A. L. Grant 

 893; Yosemite Valley, Ahrams 4654; Greely Hill above Coulterville, 

 Jejjson, July 3, 1896 ; W. Jackson Meadow, Maimvaring 511 ; Kings 

 River Caiion, Ottley 1485 ; Little Kern Lake, Tulare County, Culhert- 

 son 4287 ; Victorville, San Bernardino County, Parish 10541 ; Fawn- 

 skin Park, San Bernardino Mountains (7200 ft. alt.). Wilder 735; 

 woods near Pacific Grove, Patterson and Wiltz; near French Flat, 

 Tuolumne County, Williamson 48 ( between species and variety ; plant 

 small, villous; flowers 5-6 mm. long; peduncles exceeding the leaves). 



References. — Lotus americani's Bisch., Del. Sem. Hort. Heidelb., 

 1839; Linnaea, vol. 14, 1840: Lift. Bericht., p. 132. Trigonella ameri- 

 cana Nutt., Gen., vol. 2, 1818, p. 120. Hosackia americana Piper, 



