PURSLANE FAMILY 477 



Eefs..— Lewisia pygmaea Rob. iu Gray, Syn. Fl. 1": 268 (1897). Talinum pygmaeum 

 Gray, Am. Jo.ur. Sci. ser. 2, 33: 407 (1862), type loc. South Clear Creek, Colo., Parry. Calan- 

 drinia pygmaea Gray; Brew. & Wats. Bot. Cal. 1: 75 (1876). Oreobroma pygmaea Howell, 

 Erythea, 1: 33 (1893). 



Oreobroma longipetala Piper, Contrib. U. S. Nat. Herb. 16: 207 (1913). Scapes simple, 

 or bearing 2 or 3 erect branches, much exceeding the leaves ; petals 6 to 9 lines long. — ' ' Sierra 

 Nevada, ' ' Lemmon. Ex. char. 



3. L. nevadensis Rob. (Fig. 95b.) Scapes several to many, i/o to 4 inches 

 high, naked save for a pair of bracts near the middle — that is, near the surface 

 of the ground ; scapes and leaves arising from a fleshy carrot-shaped or some- 

 times globose root; bracts linear, opposite, often a little connate by their 

 scarious bases; leaves narrowly linear or slightly broadened upward, 1 to 

 21/2 inches long, 1 to 2 lines broad, exceeding the scapes; flowers white, soli- 

 tary and terminal on the stems; sepals ovate, acute; petals 6 to 8 (rarely 5), 

 6 to 7 lines long; stamens 6 to 11; styles 5 (3, 4 or 6) ; scapes retrocurving in 

 fruit. 



Granite sand. Sierra Nevada. 7000 to 11,000 feet. Not known in Southern 

 California. North to Washington and east to Utah. June. 



Locs. — Middle Tule Eiver, Purpns 180-5; Ramshaw Mdws., Kern Peak, Jepson 4962; 

 Kaweah Peak, Jepson 5000; Shaver, Eall tjr- Chandler 303y2 ; Yosemite Park, Jepson 4565 

 (StubblefieldCaiion), 3381 (Rodgers Creek); Donner Lake, Davy 3183; Gold Lake, Sierra Co., 

 Hall 4' Babcock 4505; Forestdale, Modoc Co., M. S. Baker; Benton Mdws., Modoc Co., Austin 

 4' Bruce. 



Refs. — Lewisia nevadensis Bob. in Gray, Syn. PI. 1': 268 (1897). Calandrinia nevadensis 

 Gray, Proc. Am. Acad. 8: 623 (1873), type spms. from the Wahsatch, East Humboldt and 

 Sierra Nevada mountains. Oreobroma nevadensis Howell, Erythea, 1: 33 (1893). 



4. L. oppositifolia Rob. Scapes 1 to 3, erect or ascending, 6 to 8 inches 

 high, these and the leaves from a fleshy-fusiform root, or 1 or 2 pairs of leaves 

 on the lower part of the scape; leaves linear-oblanceolate or linear, 1 to 3 

 inches long; scapes naked or with 1 or 2 lanceolate bracts, bearing 2 to 4 

 umbellately disposed flowers on long (i/o to 11/2 inches) pedicels; sepals 2 

 to 3 lines long, roundish, denticulate at the truncate or obtuse apex but gland- 

 less; petals white or pink, 6 to 7 lines long; stamens about 12. 



Del Norte Co., California, to Josephine Co., Oregon. 



Logs. — Smith River, ace. Watson; Waldo, Ore., (Erythea, 1: 32); Kerby to Josephine 

 Creek, Ore., M. S. Baker. 



Befs. — Lewisia oppositifolia Rob. in Gray, Syn. Fl. 1': 268 (1897). Calandrinia op- 

 positifolia Wats. Proc. Am. Acad. 20: 355 (1885), type Iocs. Waldo, Ore., and near Smith 

 River, Del Norte Co., Cal., Howell. Oreobroma oppositifolia Howell, Erythea, 1: 32 (1893). 



5. L. leana Rob. Scapes few, 5 to 9 inches high, rising from a thick 

 fleshy caudex, bearing a panicle of numerous flowers and a few scattered small 

 bracts; leaves in a dense tuft crowning the caudex, narrowly linear, acute, 

 more or less terete, 1 to 2i'2 inches long and 1 to 2io lines wide: sepals ovate 

 or roundish, 1 line long, fimbriate with reddish gland-tipped teeth; ])etals 5 

 to 7, red, 2\U to 3 lines long; stamens 5 (or 4) ; scapes disarticulating from the 

 caudex soon after fiowering. 



Siskiyou and Salmon mountains, and southern Sierra Nevada, 6000 to 9000 

 feet. Oregon. 



Locs. — Fresno Co. (Woodchuck Peak, Eisen, Dinkey Creek, Eall 4" Chandler 398) ; Hen- 

 nessey Trail, Mariposa Co., Congdon ; Castle Lake near Mt. Shasta, Lemmon; Marble Mt., 

 Chandler 1609; Shackleford Creek, Butler 1687; Twin Lakes, Canon Creek, Trinity Co., East- 

 tvood. 



Befs. — Lewisia leana Bob. in Gray, Syn. Fl. 1': 269 (1897). Calandrinia Irana Porter, 

 Bot. Gaz. 1: 49 (1876), tvpe loc. Siskiyou Mts., L. W . Lee. Oreobroma leana Howell, Erythea, 

 1: 31 (1893). 



6. L. cotyledon Rob. (Fig. 96.) Scapes several from the leafy crown of a 

 thick caudex, 4 to 10 inches high, bearing at summit a panicle and below the 



