110 SAXIFRAG ACEAE 



5. trtukae Rose. I.e., type loc. Santa Barbara Isl., Blanche Traslc. S. hassei Rose, I.e., 35, type 

 loc. Santa Catalinri Isl., Ilasse. 



7. E. edulis Berp^er. Mission Lettuce. Plants 1 to l^^ feet high; leaves 

 linear-nttonuatc. (iiiiti' thick but Ihit above, thoujjh rounded beneath, glaucous, 

 dilated and flattened at base, 2 to 3 inches long; stem leaves small; cyme paniculate, 

 2 to 9 inches long, or reduced to 1 or 2 spreading branches; petals white or nearly 

 so. oblong-lanceolate, rotately spreading from just below the middle, the median 

 ridge on back widened to a distinct wing below. 



Dry cliffs, 50 to 2500 feet : cismontane San Diego Co. June. 



Loos. — San Diego, Jrpson 1590, H. P. Kellcy; Dulzura to Campo, T. Brandegee; San Diego 

 River Falls, T. Brandcacc. 



Var. attcnuata Jcpson comb. n. Slender; cyme of 2 or 3 spreading branches, or with 1 or 

 2 small or supplementary lateral ones; petals "yellow". — Southwestern San Diego Co. (Initial 

 Monument) and southward into Lower California. 



Refs. — EcnE\-ERlA EDULIS Berger; Engler & Prantl, Nat. Pflzfam. ed. 2, 18a:481 (1930). 

 Cotyledon edulis Brew.; B. & W. Bot. Cal. 1:211 (1876); Jepson, Man. 453 (1925). Sedum 

 edule Nutt.; T. & G. Fl. 1:560 (1840), type loc. San Diego, Nuttall. Stylophylluin edule Britt. 



6. Rose, Bull. N. Y. Bot. Card. 3:36 (1903). Stylophyllum parishii Britt. Bull. N. Y. Bot. Card. 

 3:37 (1903), type loc. Pala, San Diego Co., Parish. (?) Stylophyllum semiteres Rose, Bull. 

 N. Y. Bot. Card. 3:35 (1903), the type coll. by Orcuit, either in L. Cal. or the Colorado Desert. 

 Var. ATTENUATA Jcpson. Cotyledon edulis var. attenuata Jepson, Man. 453 (1925). Cotyledon 

 aitenuata Wats. Proc. Am. Acad. 22:472 (1887), type from San Quentin Bay, L. Cal., Orcutt. 

 Stylophyllum attcnuatum Britt. & Rose, Bull. N. Y. Bot. Card. 3:36 (1903). Stylophyllum orcut- 

 tii Rose, Bull. N. Y. Bot. Gard. 3:36 (1903), type loe. Initial Monument, T. Brandegee ; coroUa- 

 eegments rose-color (ex char.). 



8. E. densiflora Berger. White Lettuce. Plants 6 to 12 inches high, very 

 white-glaucous ; leaves terete, or somewhat oval in section, 2^/2 to 6 inches long; 

 cyme compound, rounded, densely flowered, 21^ to 4 inches wide; calyx-lobes ob- 

 tuse; petals white or pinkish, lanceolate, distinct nearly or quite to the base. 



Caiion walls, 900 to 2000 feet : San Gabriel Mts. June- July. A remarkable 

 and highly localized species. 



Locs. — Fish Canon, Peirson 517; San Gabriel Caiion. 



Refs. — EcHEVERiA DENSIFLORA Berger; Engler & Prantl, Nat. Pflzfam. 18a:481 (1930). 

 Stylophyllum densiflorum Rose, Bull. N. Y. Bot. Gard. 3:36 (1903), which rests on Cotyledon 

 nudicaule Abrams, Bull. S. Cal. Acad. 2:42 (1903), type loc. San Gabriel Canon, Abrams, not C. 

 nudicaulis Lam. (1786). Cotyledon densiflora Fedde; Just, Bot. Jahrb. 3r:829 (1904) : Jepson, 

 Man. 453 (1925). 



SAXIFRAGACEAE. Saxifrage Family 



Perennial herbs or shrubs. Flowers perfect, perigynous, usually white, often 

 red, never blue, borne in racemes, panicles or cymes, or solitary. Calyx 5-lobed or 

 -cleft. Petals commonly 5, sometimes 4 to 8. Stamens 5 or 10, sometimes 3, or 8 

 to 20, or numerous. Pistil 1; ovary partly or wholly inferior, or superior, 1 to 

 5-celled, the styles or stigmas as many as the cells or placentae, the latter either 

 parietal or axile. Fruit a capsule, follicle, or berry. Seed with endosperm. Stip- 

 ules (in ours) none except in Lithophragma, Peltiphyllum and Ribes, and some- 

 times in Boj'kinia. Aestivation imbricate. Stamens inserted with the petals. — 

 Species 600 in 70 genera, north temperate (especially alpine) and arctic zones, also 

 a few in north Africa and a few in the Andes as far south as the straits of Magellan. 



Bibliog. — Engler, A., Index criticus specierum atque synonymorum generis Saxifraga L. 

 (Verhandlung zool. bot. Ges. Wien. 19: 513-558,-1869). Wheelock, W. E., Descriptive list of 

 species of the genus Heuehera (Bull. Torr. Club 17:191-204,-1890). Small, J. K., Two new 

 genera of Saxifragaceae (Bull. Torr. Club 23:13-20,-1896). Wheelock, W. E., List of species 



of the smaller herbaceous genera of N. Am. Saxifragaceae (Bull. Torr. Club 23-67-78 1896) 



Koehne, E., Philadelphus (Gartenfl. 45:450-462,-1896). Rose, J. N., Preliminary revision of 

 the N. Am. species of Chrysosplcnium (Bot. Gaz. 23:274-277,-1897). Rosendahl, C. O., Die 

 nordamerikanischen Saxifraginae und ihre Verwandtschafts-Verhiiltnisse in Beziehung zu ihre 

 geographischen Verbreitung (Engler, Bot. Jahrb. 37: beibl. 83:1-87, t. 4-5.— 1905). SmaU, 

 J. K., and Rydberg, P. A., Saxifragaceae, Hydrangeaceae in N. Am. Fl. 22 : 1-180, — 1905. 



