Part 1, 1905] CRASSULACEAB 43 



2-3 mm. long; corolla 8-10 mm. long, reddish, its tube usually if not always longer than 

 the calyx ; stamens much shorter than the corolla ; carpels erect. 



Type locality : San Lucas, Lower CaHfornia. 

 Distribution : Southern Lower California, 



41. Dudleya rubens (Brand.) Britton & Rose, Bull. N. Y. 



Bot. Gard. 3 : 23. 1903. 



Cotyledon rubens Brand. Proc. Calif. Acad. II. 2 : 155. 1889. 



Acaulescent; slightly pulverulent. Leaves 5-7.5 cm. long, 12 mm. broad, lanceolate, 

 acute ; flowering branches 1-1.5 dm. high, bearing a few auriculate-clasping leaves ; inflor- 

 escence a few-branched panicle or reduced to a single secund raceme ; pedicels 6 mm. long 

 or less ; calyx-lobes broadly ovate, acute ; corolla dull-red with segments more than half 

 the length of the tube. 



Type locality : Cliffs near San Esteban in the interior of central Lower California, about 27° 

 50' latitude. 



Distribution : Lower California. 



42. Dudleya gigantea Rose, Bull. N. Y. Gard. 3 : 23. 1903. 



Acaulescent or nearly so, with a thick short rootstock. Basal leaves in a dense rosette, 

 very glaucous, oblanceolate, 5-7 cm. long, drying very thin ; flowering stems rather stout, 

 about 3 cm. long ; inflorescence paniculate, with numerous usually erect branches ; pedicels 

 rather slender, 5-10 mm. long, erect ; calyx-lobes broadly ovate, obtuse or acutish ; corolla 

 drying deep-red, 9-10 mm. long, the segments erect, acute, united at base into a short tube 

 1.5 mm. long. 



Type locality : New York Falls, Amador County, California. 

 Distribution : Known only from the type locality. 



43. Dudleya rigida Rose, Bull. N. Y. Bot. Gard. 3 : 23. 1903. 



Basal leaves numerous, borne on a thick woody caudex, flat but fleshy, oblong, 5-7 cm. 

 long, acuminate, somewhat glaucous ; flowering branches long, slender and weak ; inflores- 

 cence of a few (usually 2) secund racemes ; pedicels slender, the lower ones longer, some- 

 times 10-15 mm. long; calyx-lobes ovate, longer than the tube, acute; corolla 12 mm. long, 

 reddish, with erect segments. 



Type locality : Lower California. 



Distribution : Known only from the type locality. 



Illustration : Baker, in Saund. Ref . Bot. 1 : pi. 66, as Cotyledon pulverulentzim. 



44. Dudleya lanceolata (Nutt.) Britton & Rose, Bull. N. Y. 



Bot. Gard. 3: 23. 1903. 



Echeveria lanceolata Nutt.; T. & G. Fl. N. Am. 1 : 561. 1840. 

 Cotyledon lanceolata Benth. & Hook.; S. Wats. Bot. Calif. 1 : 211. 1876. 



Acaulescent ; green or slightly glaucous. Basal leaves numerous, lanceolate, long- 

 acuminate, the outer 10-15 cm, long, 1.5-2 cm. wide ; scapes stout, 4-6 dm. tall, their leaves 

 lanceolate from a broad cordate or sagittate base, acuminate, the uppermost 1 cm. long or 

 less ; cyme 10 cm. broad or less ; pedicels stout, 3-8 mm. long ; calyx:-segments broadly 

 ovate, acute or obtusish, about 4 mm. long ; corolla reddish-yellow, 12-16 mm. long. 



Type locality : San Diego, California. 



Distribution : Southern California. 



Illustration : Torrey, Bot. Mex. Bound. Surv. pi. 24. 



45. Dudleya delicata Rose, Bull. N. Y. Bot. Gard. 3 : 24. 1903. 



Leaves in dense rosettes, in clusters of 4-6 or more, erect or somewhat spreading rather 

 narrow, broadest at the base, the outer ones 2 cm. broad, the inner ones considerably smaller 

 and narrower, gradually tapering to an acute apex, 6-8 cm. long, fleshy but flattened, very 

 glaucous ; flowering stems slender, about 20 cm. long, the leaves ovate, acute ; pedicels 

 very short, 2-4 mm. long ; calyx-lobes equal, ovate, acute, not glaucous ; corolla rather 



