STONE-CROP FAMILY 105 



Muddy ground, 50 to 1500 feet : widely distributed in California but very in- 

 conspicuous and perhaps not common. North America, Europe. Mar.-Apr, 



Locs. — Alton, Humboldt Co., Tracy 3689, 4705; Napa, Jepson 13,442; Vacaville, Jepson 

 1204; Stockton, Sanford; San Diego, Orcutt. 



Var. drummondii Jepson. Lower pedicels elongating in fruit and finally exceeding the 

 leaves, the upper ones remaining shorter than the leaves. — Muddy places, central California. 

 North to "Washington, east to Louisiana, south to Mexico, western United States. 



Note on variation. — Specimens from San Mateo Co. (Lake Pilarcitos, Bioletti) show on 

 single individuals pedicels varying from 3%, times as long as the leaves to twice as long, 1% 

 times as long, equaling the leaves or (especially towards the ends of the branches) shortly ped- 

 iceled or subsessile. This condition is more or less repeated in all the specimens which we cite : 

 Pudding Creek, Ft. Bragg, Ottley 1554; Calistoga, Tracy 1854%; Presidio, San Francisco, 

 Bioletti; Tres Pinos, San Benito Co., Jepson 16,117. While the flowers usually have 4 stamens 

 alternate with the petals and about as long as the carpels, in plants on the Madera plains (Califa, 

 Jepson 15,173), we find a second whorl of 4 stamens opposite to and about % as long as the petals 

 with anthers very much reduced and probably infertile. 



Eefs. — TiLJiAEA AQUATICA L. Sp. PI. 128 (1753), type European; Jepson, Man. 449 (1925). 

 T. simplex Nutt. Jour. Acad. Phila. ser. 1, 1:114 (1817), type loc. Delaware Elver near Ken- 

 sington, Philadelphia, Nuttall. T. angustifolia Nutt.; T. & G. Fl. 1:558 (1840), type loc. muddy 

 banks of the Oregon and Willamette, Nuttall. Bulliarda aquatica DC. Prod. 3:382 (1828), 

 Tillaeastnim aquaticum Britt. Bull. N. Y. Bot. Gard. 3:1 (1903). Crassula aquatica Schoenl. ; 

 Engler & Prantl, Nat. Pflzf. y-.Zl (1891). Tillaea angustifolia var. iolanderi Wats.; B. & W. 

 Bot. Cal. 1 :209 (1876), type loc. San Francisco, Bolander. T. drummondii var. bolanderi Jepson, 

 Fl. W. Mid. Cal. 265 (1901). T. bolanderi Greene, Fl. Fr. 183 (1891). Var. DRt^MMO^^D^ Jep- 

 son, Man. 449 (1925). T. drummondii T. & G. Fl. 1:558 (1840), type from Texas, Drummond; 

 Jepson, Fl. W. Mid. Cal. 265 (1901), ed. 2, 195 (1911). Tillaeastrum drummondii Britt. Bull. 

 N. Y. Bot. Gard. 3:1 (1903). Tillaea pedunctdaris Wats.; B. & W. Bot. Cal. 2:446 (1880). 



2. T. erecta H. & A. Sand Pigmy, Plants diffusely branched and tufted, or 

 sometimes nearly simple, becoming reddish with age, floriferous nearly to the 

 base, 1 to 3 inches high; leaves ovate or oblong, connate at base, 1 to l^/o lines long; 

 sepals 1/^ line long, equaling or somewhat exceeding the narrowly lanceolate petals; 

 carpels usually 1 (occasionally 2) -seeded. 



Dry usually sandy ground of valleys, plains and foothills, 20 to 2500 ft, : com- 

 mon throughout cismontane California, North to Oregon, east to Arizona, south 

 to Lower California. Chile. Mar.-Apr. 



Note on the flower. — The petals, at first white, soon develop a linear red spot on the back or 

 become wholly reddish. The carpels are usually 2-ovuled. 



Locs. — Bedding, BlanMnship ; South Yager Creek, Humboldt Co., Tracy 7461; Ocean Beach, 

 Humboldt Co., Tracy 3125; Araquipa Hills, nw. Solano Co., Jepson 13,437; Montezuma Hills, 

 Jepson 13,440; Mt. Tamalpais, Jepson 13.438; Berkeley, Jepson 13,436; Red Rock, San Fran- 

 cisco Bay, Jepson 13,439; San Francisco, Tracy 1781; Colma, San Mateo Co., Jepson 9106; Stan- 

 ford, C. F. BaTcer 603; Los Gatos, Heller 7340; Santa Cruz, C. A. Eeed; Pajaro Hills, Monterey 

 Co., Chandler 424; Califa, Madera Co., Jepson 15,176; Table Mt., Fresno Co., Jepson 15,184; 

 Badger road foothills, n. Tulare Co., E. P. Kelley ; Tipton, Tulare Co., Jepson 11,596; Gaviota, 

 Santa Barbara Co., Eastwood 44; Santa Anita Wash, Monrovia, Peirson 2112; Garvanza, Los 

 Angeles Co., Geo. B. Grant 1295; Santa Ana, Alice King; La Jolla, Jepson 11,846; San Diego, 

 Jepson 6675, 6663, 



Var. eremica Jepson. Plants very slender; pedicels as much as 1% lines long. — Vallecito, 

 w. Colorado Desert. 



Refs.— TrLLAEA erecta H. & A. Bot. Beech. 24 (1830), type from Chile; Jepson, Man. 449, 

 fig. 442 (1925). T. minima Miers; H. & A. in Hook. Bot. Misc. 3:338 (1833) ; Jepson, Fl. W, 

 Mid. Cal. 265 (1901), ed. 2, 195 (1911). CrassuU minima Reiche, Fl. Chile 2:369 (1898). T. mi- 

 nima var. subsimplex Wats.; B. & W.Bot. Cal. 1:208 (1876). T. leptopetala Benth. PI. Hartw. 

 310 (1849), type loc. San Francisco, Hartweg. Var. eremica Jepson, Man, 450 (1925), type loc. 

 Vallecito, w, Colorado Desert, Jepson 8636, 



2. SEDELLA Britt. & Rose 



Diminutive annuals. Leaves small, ovate to oblong-ovate, very fleshy, resem- 

 bling rice-grains. Flowers in cymes. Calyx 5-toothed, the teeth triangular. Petals 

 5, linear to ovate-lanceolate, united at base. Stamens 10, Carpels erect, the 



