268 University of California Publications in Botany. [VOL. 3 



oblanceolate in outline, tapering to the long narrow base, from 

 entire to irregularly and shallowly lobed, or even pinnatifid with 

 narrow lobes: peduncles exceeding the leaves, 1 or 2-cephalous: 

 involucre 12 to 15 mm. high; inner bracts equal, linear-oblong, 

 obtuse; outer bracts short, imbricated, passing into scale-like 

 bracts of the peduncle: ligules lemon-yellow: achenes oblong, 

 truncate, 15-striate, lightly pubescent or glabrous : pappus-bristles 

 all deciduous. 



San Diego, "on an island in the bay" (probably Coronados 

 Islands), 1836, Nuttall; Santa Cruz Island, Aug., 1886, Greene; 

 San Miguel Island, Sept., 1886, Greene (leaves, in one specimen, 

 only 2 cm. long) ; Santa Rosa Island, Brandegee; Santa Maria, 

 Santa Barbara Co., Mrs. Ida M. Blochman; Pecho, San Luis 

 Obispo Co., Mrs. R. W. Summers; Surf, Santa Barbara Co., ace. 

 to Elmer (as M. succulenta). 



10. M. saxatilis (Nutt.) T. & G., Fl. ii. 486 (1842). Leuco- 

 seris saxatilis Nutt., Trans. Am. Philos. Soc. ser. 2, vii. 440 

 (1841). 



Diffuse or decumbent from a suffrutescent base, 3 to 6 dm 

 (or more?) high: herbage succulent, minutely tomentose when 

 young: leaves lanceolate to spatulate, mostly obtuse and entire 

 but some of the lower ones toothed or pinnatifid : involucre 10 to 

 15 mm. high; its bracts linear-attenuate, the outer ones very 

 short: ligules probably white: achenes 10 to 15-costate, about 5 

 of the costae stronger than the others and rib-like, crowned with 

 a minute denticulate white border : persistent pappus-bristles 

 none. 



"St. Barbara, on shelving rocks near the sea," ace. to Nuttall. 

 who first collected it. I have seen specimens from Santa Barbara. 

 Gaviota, and Santa Catalina Island. 



Var. tenuifolia (Nutt.) Gray, Syn. Fl. i. pt. 2, 423 (1884). 

 Leucosyris tenuifolia Nutt., Trans. Am. Philos. Soc. ser. 2, vii 

 440 (1841). Stems several, erect, 1 to 2.5 m. high, scarcely 

 suffrutescent: herbage glabrous, not succulent: leaves (or their 

 lobes) acute; the lower often 10 cm. long; the upper ones simple 

 and linear to filiform, or pinnately parted into narrow lobes; 

 those of the inflorescence much reduced : ligules white with a pink 

 medial line. Hillsides and canons of the Upper Sonoran Zone. 



