SAXIFRAGACEjE. 



267 



Summit of Pacheco Peak, Brewer. Very closely allied to the 

 next. Our descriptions of the two species, as well as those in the 

 Botany of California by Dr. Watson, are too nearly congruous. 

 More abundant material needed. 



2. C. caespitosa Haw. Acaulescent, the short caudex 1£ in. 

 thick or less, with reddish flesh; herbage glabrous, the younger leaves 

 in the center of rosette glaucous, the stems and inflorescence disposed 

 to become straw-yellow in age; rosulate leaves 2 to 5$ in. long, either 

 narrowly oblong (6 to 9 lines broad) or strongly dilated above (1£ in. 

 broad), all with conspicuously acuminate or lanceolate-acuminate 

 apex; cauline leaves narrowly lanceolate and bract-like, 1£ in. long 

 or less, the upper very short and triangular; cyme compound, rather 

 loose and sometimes few-flowered, 1£ to 3 in. high, the whole inflo- 

 rescence or one side frequently flexuous- or recur ved-contorted; pedi- 

 cels 2 to 6 or even 12 lines long; calyx-lobes ovate, acute, nearly 2 

 lines long; petals orange or yellow, oblong-lanceolate, 4 to 6 lines 

 long, indistinctly winged on the back, fleshy in anthesis, afterwards 

 becoming thin and scarious. 



Kocky ridges of the Coast Ranges: Vaca Mountains, Plait; Howell 

 Mountain, Jepson. Last of Apr.-June. 



Var. paniculata. Cymes paniculate, the flowering stems bearing 

 several peduncled cymes from the middle. — Morrison Canon near 

 Niles, collected by the author in 1897. 



3. C. Plattiana. Acaulescent, 3 to 8 in. high; leaves more or less 

 glaucous, the whole plant, including the inflorescence, becoming 

 reddish; rosulate leaves 1 to 3 in. long, much like those of the pre- 

 ceding; cyme with numerous flowers, very compact and flat-topped, 

 about 1£ to 2J in. broad, about 1\ to If in. high; pedicels 2 to 5 lines 

 long; sepals triangular, acute or shortly acuminate, 1$ lines long; 

 petals broadly lanceolate, distinctly winged on the back, 4 lines long. 



Inner Coast Range: Mt. Diablo; Vaca Mountains, R. II. Plait. 



4. C. laxa Brew. & Wats. Nearly acaulescent, very glaucous; 

 flowering branches stout, 1 to 2 ft. high; rosulate leaves lanceolate, 

 sharply acuminate, 3 to 4 in. long or more; inflorescence of 2 to 4 

 simple secund racemes 3 to 5 in. long; pedicels 1 to 2 (or 3) lines 

 long; sepals ovate, acute, 2 to 1\ lines long; petals orange-yellow 

 in early anthesis, oblong-lanceolate, acute or acuminate, distinctly 

 keeled, 5 to 7 lines long. 



Gabilan Range (San Juan), Brewer, thence southward to Southern 

 California. 



Var. Setchellii. Herbage merely glaucous; flowering branches 

 slender, 9 to 12 in. high; leaves lanceolate or linear-lanceolate and 

 long-acuminate; petals narrowly oblong, acute; racemes many, 

 elongated and paniculate. — Coyote Creek, Santa Clara Co., 1896, 

 Setchell and Jepson. 



61. SAXIFRAGACE/E. Saxifrage Family. 



Ours perennial herbs or shrubs with alternate leaves (opposite in 

 Whipplea) and no stipules (except in Ribes). Flowers perfect, peri- 



