PEA FAMILY 317 



most leaves often elliptical or oblong and acute at both ends; flowers 5 to 7% lines long. — 

 Meadows, stream borders and in dry pine woods, 2200 to 7000 feet: Sierra Nevada; North 

 Coast Kanges; frequent. May-Sept. 



Locs. — Sierra Nevada: Lloyd Mdws., upper Kern Eiver, Jepson 4907; Eound Mdw., Giant 

 Forest, Jepson 676; Bishop Creek, Inyo Co., ShocMey 415; Markwood Mdw., Fresno Co., Jepson 

 16,026; Huntington Lake, Jepson 13,036; Crockers sta., Mariposa Co., Blasdale; Strawberry, 

 Tuolumne Co., Jepson 6493; Murphy, Calaveras Co., A. L. Grant lOOt; Pine Grove, Amador Co., 

 Hansen 348; Woodford sta., Alpine Co., Ottley 1140; Fallen Leaf Lake, Eldorado Co., M. S. 

 Balcer ; Bear Valley, Nevada Co., Jepson 13,790; Dogwood Creek, Middle Fork Feather Eiver, 

 sw. Plumas Co., Jepson 10,625; Eagle Lake, cent. Lassen Co., Balcer ^- Nutting. Coast Eanges: 

 Gasquet, Del Norte Co., M. S. Baker 3156; Sisson, Siskiyou Co., Jepson 13,791; Etna Creek, 

 Siskiyou Co., Butler 397; Coffee Creek, Salmon Mts., Hall 8526; Mud Sprs., Trinity Summit, 

 Manning 63; Horse Mt., Humboldt Co., Tracy 7629; Ft. Bragg, Ottley 1541; Big Horse Mt., 

 n. Lake Co., Jepson; Howell Mt., Jepson 13,789. 



Var. cupreus Ottley. Stems low, much -branched and flaccid; herbage glabrous; leaflets 

 oblanceolate, mucronate, those of the lower leaves mostly cuneate-obovate ; umbels 1 to 3-flowered ; 

 flowers 31/^ to 4 lines long. — Meadows and rocky hills, 8000 to 9000 feet: southern Sierra Nevada. 

 Localized form. June-Aug. 



Locs. — Mt. Silliman, Jepson 738 ; Sand Mdw., South Fork Kaweah Eiver, Jepson 4672. 



Eefs. — Lotus oblongifolius Greene, Pitt. 2:146 (1890); Jepson, Man. 549 (1925). Eo- 

 sacTcia ollongifolia Benth. PL Hartw. 305 (1848), type collected by Coulter, undoubtedly in cis- 

 montane S. Cal., erroneously stated as "vicinity of Monterey". E. lathyroides D. & H. Pae. E. 

 Eep. 5^:6, pi. 3 (1855), type loc. Fort Miller on the San Joaquin Eiver, Fresno Co., Heermann 

 (leaflets narrow). E. oblongifolia var. angustifolia Wats.; B. & W. Bot. Cal. 1:135 (1876), 

 based on last. L. lathyroides Greene, Pitt. 2:146 (1890). H. torreyi var. seorsus Mcbr. Contrib. 

 Gray Herb. 65:40 (1922), type loc. Idlewild, San Jacinto Mts., M. F. Spencer 1280 (plants less 

 robust ; pubescence hirsutulose ; leaflets and flowers smaller ; peduncles fewer-flowered ; as com- 

 pared with typical spms. of var. torreyi). Var. torreyi Ottley, Univ. Cal. Publ. Bot. 10:205 

 (1923); Jepson, I.e. HosacTcia torreyi Gray, Proc. Am. Acad. 8:625 (1873), type loc. betw. 

 Clarks and Yosemite Valley, Bridges, Torrey. L. torreyi Greene, Pitt. 2:146 (1890); Jepson, 

 Fl. W. Mid, Cal. 300 (1901), ed. 2, 229 (1911). E. torreyi var. nevadensis Gray I.e., type loo, 

 near Donner Lake, Torrey (flowers smaller). Var. cupreus Ottley, Univ. Cal. Publ. Bot. 10:206 

 (1923). L. cupreus Greene, Lflts. 1:74 (1904), type loc. Hockett Mdws., Tulare Co., C. F. 

 Balcer 4373. 



8. L. grandiflorus Greene. Chaparral Lotus. Stems several from the root- 

 crown, erect, li/4 to 214 feet high; herbage puberulent or even velvety; leaves 1 to 

 iy2 (or 2%) inches long; leaflets (5 or) 7 or 8, obovate, obtuse, mucronate, 3 to 10 

 (or 18) lines long; peduncles 2 to dVs inches long; umbels 2 to 8-flowered; bract 

 of 1 to 3 large leaflets; flowers 7 to 10 lines long; caljrs hirsutulose, its teeth subu- 

 late to nearly linear, half to nearly as long as the tube; corolla creamy-white or 

 lemon-yellow, turning deep rose with age; pods 1 to 1% inches long, 1 to 2 lines 

 wide, glabrous, brown, with a whitish callous line on the ventral suture. 



Dry mountain opens or chaparral slopes, 500 to 6000 feet : Sierra Nevada from 

 Shasta Co. to Nevada Co.; Tehachapi Mts.; Coast Ranges from Mendocino and 

 Lake Cos. to San Luis Obispo Co.; western margins of the Mohave Desert; coastal 

 Southern California. Mar.-June. 



Note on variation. — In the typical form of Lotus grandiflorus the pubescence is usually 

 short and appressed, but in drier situations at lower altitudes, and especially towards the interior, 

 the herbage is often velvety-pubescent with spreading hairs (var. mutabilis Ottley) ; sometimes 

 short peduncles are associated with this velvety -pubescent form (Strawberry Valley, Mt. San 

 Jacinto, Jepson 2293), but again the peduncles are often long (Cajon Pass, Peirson 102, Jepson 

 6115) or somewhat short at the same locality (Cajon Pass, Eall 6224). On the ridge of the 

 Vaca Mountains, above Collins Camp, the plants in 1892 were dwarfed, velvety-pubescent and 

 shortly peduncled (Jepson 13,806). The next year, in 1893, vigorous plants with longer pe- 

 duncles were collected at the same spot (Jepson 13,808). Taking California at large, the inter- 

 mediates between the species and the var. mutabilis Ottley are about as numerous as the variety. 

 Var. mutabilis is typically dwarfed with short peduncles and spreading pubescence; Bolander 

 4752 (Mendocino City "plains") has these characters save that the pubescence is appressed. The 

 two forms of pubescence are not constantly associated with other characters, nor is there geo- 

 graphic segregation in connection with one definite character. 



Locs.— Sierra Nevada: Donkey Mine, Shasta Co., M. S. Balcer; Brush Creek, Butte Co., Kate 

 Conger; Kres, w. Nevada Co., Eall # Essig 10,169. Tehachapi Mts., Easse ^ Davidson Coast 

 Eanges: Fort Bragg, W. C. Mathews 19, 42a; Houghs Sprs., ne. Lake Co., Jepson 9008; Yolo 



