1st; Crassulaceae 



leaves very glaucous, linear, not tapering, except toward the 

 apex, 10 cm. long <>r less, 1 cm. wide or less, somewhat flattened 

 below, terete above, (lowering stems weak, their primary branches 

 L-2-dichotomous, the ultimate branches Blender and many- 

 flowered; calyx widely spreading in age. 



Described from specimens collected <m Catalina Island by Dr. Masse. 



3. S. densiflorum Rose. Glaucous throughout from more or 

 less branching rootstocks; leaves numerous, erect, nearly terete, 

 acute, 6-12 cm. long; flowering branches slender and weak; 

 inflorescence a rather dense compact cyme, its ultimate branches 

 rather short, 4-8-flowered; pedicels short, 1-3 mm. long*; calyx 

 L' inni. long, its lobes twice as long as its tube, broadly ovate to 

 orbicular, obtuse; corolla white or pinkish, ti mm. long, its seg- 

 ments spreading, distinct nearly to the base. {Cotyledon nudi- 

 caule Abrams.) 



Frequent on rocky cliffs in the San Gabriel Canyon. 



4. DUDLEYA Britton & Rose. 



Caulescent or acaulescent perennials with Hat Linear 

 to ovate basal loaves and yellow, orange, red or rarely 

 white flowers, mostly in panicles. Leaves of the flower- 

 ing branches usually nmch shorter and relatively broader 

 than the basal ones, sessile or clasping. Calyx conspicu- 

 ous, 5-lobed. the lobes erect, 1 i Ilea f-hl lieeola t e to ovate, 



obtuse to acuminate. Corolla nearly cylindric, or some- 

 what angled, the segments united below the middle, 

 erect, or their tips somewhat spreading, obtuse to acumi- 

 nate. Stamens twice as many as the calyx-lobes, dis- 

 tinct. Carpels erect, many-seeded. ( Cotyledon in part. ) 



* Leaves apatulate to ovate, rather thin. 



1. D. pulverulenta (Xutt.) B. & R. Densely white-mealy 

 throughout; caudex short and very stout ; rosulate leaves rather 

 thin and flaccid, in a flattened large rosette, broadly Bpatulate, 

 abruptly acute, 5-10 cm. long; scapes 4 dm. high or more, stout 

 with broadly cordate rather numerous acute leaves, the lower 

 BOmetimeS ovate, acuminate ; inflorescence of IM! elongated simple 

 racemes; pedicels mostly horizontal, slender, 6-15 nun. long; 



