1923] Ottley: A Eevision of the CaUfornian Species of Lotus 227 



Valley and at Fort Tejon, Horn in 1863 ; Llano Verdi, Antelope 

 Valley, Davy 2312 ; Manzana, Antelope Valley, Davy 2502 ; hills 

 south of Antelope Valley, HaJl and Chandler 7392 ; Mohave River 

 district. Palmer 80; Mohave Desert, Parish 3740; Mohave Desert 

 near head of Cajon Pass, Parish 10911 (pods immature, but some as 

 much as 2 cm. long) ; Cajon Pass, Cooper, June 8, 1861; Rock Creek, 

 Mohave Desert, Davidson, July, 1893 ; Bryne 's Spring, San Bernar- 

 dino Mountains, Parish 3193. Pods strongly arcuate: Independence, 

 Inyo Count}", Bhine 655; sunny slopes, Argus Mountain, Piirpus 5465 

 (in U.S. Nat. Herb.), duplicate in U.C. Herbarium has pods curved 

 to form almost a circle. 



Var. jepsonii Ottley n. var. Ascending ; flowers 1 to 2 in the leaf 

 axils, 9 to 12 mm. long; calyx teeth between 2 and 3 mm. long and 

 over one-half the length of the tube ; claws of petals scarcely exserted. 

 — Eastern part of the range of the species. Distribution Map 7. July. 



Localities. — Kern River, near Little Kern Lake, Jepson 4921 

 (type) ; vicinity of Lloyd Meadow, Kern River, Dudley 798; Green- 

 horn Mountains, Purpus 5533; Trout Meadows, Tulare Comity, 

 Purpus 1856; gravellv ridges around Trout Meadows, Hall and Hall 



8385. 



References. — Lotus leucophyllus Greene, Pitt., vol. 2, 1890, p. 

 149. Hosackia sericea Benth., Trans. Linn. Soc, vol. 17, 1837, p. 367, 

 type from California, Douglas in 1833. Syrmatium sericeum Greene, 

 Bull. Calif. Acad., vol. 2, 1886 p. 147. Hosackia procumbens Greene, 

 loc. cit., vol. 1, 1885, p. 82, type loc, Tehachapi, Kern County, Curran. 

 Syrmatium procumbens Green, loc. cit., vol. 2, 1886, p. 147. Lotus 

 procumbens Greene, Pitt., vol. 2, 1890, p. 149. 



22. L. scoparius Ottley n. comb. (pi. 77, figs. 1-9). Suberect bushy 

 perennials, 4 to 12 dm. tall, with long virgate branches bearing sessile 

 umbels extending back from the tip for many centimeters ; stem hard, 

 green, striate, with stipular ridge prominent ; herbage glabrous except 

 at young growing ends of the stems ; leaves 1 to 2 cm. long ; leaflets 3 

 (4 or 5), acute, oblong or oblanceolate (oval) ; flowers 8 to 10 mm. 

 long; calyx teeth short-subulate; claws of petals exserted slightly 

 beyond calyx tube ; wings equal in length to the keel ; legumes falcate 

 to almost straight, extending far beyond the calyx, 1 or 2-seeded. 



Common in the I'pper Sonoran of the western part of the state 

 and in the Sierra Nevada, so abundant in certain regions as to be 

 classed among the weeds. In the vicinity of Pasadena it often fills 

 vacant city lots. It varies much in size, in habit, and in abundance 

 of flowers. One mainland and several island varieties may easily be 

 distinguished. Distribution Map 8. February-October. 



Localities. — On bluffs. South Fork, Eel River, Humboldt County, 

 Tracy 3801, 5048; Mendocino and IJkiah road, McMurphy 137; near 

 Clear Lake, Torrey in 1865 ; Healdsburg, Sonoma County, King, June, 

 1897; near St. Helena Sanitarium, Abrams 5770; Weldon Canon, 

 Solano County, Jepson, June 1, 1891 ; along Sonoma Creek at foot of 

 Mt. Hood, Heller 5111 ; Howell Mountain, Jepson, June, 1893 ; Buck- 

 eve Creek, Yolo Countv, Stinchfield 321; Bolinas Bav, Setchell, ]\Iareh 

 6^ 1896; Mt. Tamalpais, A'. Brandegee in 1905; Mill Valley, ^yalker 



