PURSLANE FAMILY 477 



Befs. LEWISIA PYGMAEA Bob. in Gray, Syn. Fl. I 1 : 268 (1897). Talinum pygmaeum 

 Gray, Am. Jour. Sci. ser. 2, 33: 407 (1862), type loe. 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, y 2 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 

 2^/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 Biver, Purpus 1805; Bamshaw Mdws., Kern Peak, Jepson 4962; 

 Kaweah Peak, Jepson 5000; Shaver, Hall fy Chandler 303^; Yosemite Park, Jepson 4565 

 (Stubblefield Canon), 3381 (Badgers Creek) ; Donner Lake, Davy 3183; Gold Lake, Sierra Co., 

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

 4~ Bruce. 



Eefs. LEWISIA NEVADENSIS Bob. in Gray, Syn. Fl. I 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 (y 2 to 1% 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. 



Locs. Smith Biver, ace. Watson; Waldo, Ore., (Erythea, 1: 32); Kerby to Josephine 

 Creek, Ore., M. S. Baker. 



Befs. LEWISIA OPPOSITIFOLIA Bob. in Gray, Syn. Fl. I 1 : 268 (1897). Calandrinia op- 

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

 Eiver, 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 2y 2 inches long and 1 to 2y 2 lines wide ; sepals ovate 

 or roundish, 1 line long, fimbriate with reddish gland-tipped teeth; petals 5 

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

 caudex soon after flowering. 



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

 feet. Oregon. 



Locs. Fresno Co. (Woodchuek Peak, Eisen, Dinkey Creek, Hall # Chandler 398) ; Hen- 

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

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

 wood. 



Befs. LEWISIA LEANA Bob. in Gray, Syn. Fl. I 1 : 269 (1897). Calandrinia leana Porter, 

 Bot. Gaz. 1: 49 (1876), type 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 



