42 NORTH AMERICAN FLORA [V01.UMK 22 



way up, and here 2.5-3 cm. wide and thence tapering to a very sharp tip, old ones bronzed, 

 young ones very pale and densely pulverulent ; flowering branches erect or spreading ; stem- 

 leaves slender, 3^ cm. long, rounded at base, acute; pedicels slender, 5-12 nim. long; 

 calyx-lobes ovate, acute; corolla pale-yellow, rather slender, 12 mm. long, its segments 

 rather thin, spreading at tip, distinct nearly to the base ; stamens about two-thirds the 

 length of the corolla, attached at its very base. 



Type locality : California. 

 Distribution : Central California. 

 Illustration : Baker, Iog. cit. 



36. Dudleya Brandegei Rose, Bull. N. Y. Bot. Gard. 3 : 21. 1903. 



Acaulescent. I^eaves in a dense rosette, rigid, ov^e-oblong, long-acuminate, the larger 

 ones 1 dm. long, pale and slightly glaucous ; flowering stems 4—6 dm. long, rather stout, 

 reddish; inflorescence of several elongated one-sided racemes ; pedicels rather stout, 1-1.5 

 cm. long ; calyx deeply cleft into ovate-lanceolate lobes, these acute and 6-7 mm. long ; 

 corolla 10-14 mm. long, yellowish, the segments nearly erect, a little longer than the tube ; 

 stamens shorter than the corolla, attached near the top of its tube ; carpels erect, free to 

 the base. 



Type locality : Lower California. 

 Distribution : Lower California. 



37. Dudleya lurida Rose, Bull. N. Y. Bot. Gard. 3 : 22. 1903. 



Acaulescent. Basal leaves ascending or nearly erect, very numerous, not at all glaucous 

 at flowering time, at last deeply bronzed, lanceolate-acuminate, 10-15 cm. long, 10-22 mm. 

 broad at the middle, fleshy but not very thick for this genus ; flowering stems stout, purplish, 

 4-5 dm. tall, their leaves broadly ovate, acute, clasping, 0.7-2 cm. long; inflorescence 

 paniculate, the branches elongated ; pedicels 8-12 mm. long, rather slender ; caly:x-lobes 

 ovate, acute, 5-6 mm. long, reddish; corolla reddish, 12-15 mm. long, the segments erect, 

 acute . 



Type locality : Santa Monica Mountains, I^os Angeles County, California. 



Distribution : Southern California. 



1'- 



38. Dudleya pauciflora Rose, Bull. N. Y. Bot. Gard. 3.: 22. 1903. 



Leaves forming dense rosettes, linear, slightly broadened at base, long-acuminate, 2-3 

 cm. long, 1 cm. broad at base, reddish, perhaps somewhat glaucous ; flowering stems 5-10 

 cm. long, few-leaved; inflorescence a cyme of 6-8 flowers, the longer pedicels 8-10 mm. 

 long; calyx 5-lobed, its lobes ovate, acute, 1.5-2 mm. long; corolla-tube shorter than the 

 cal5rx, its segments 5-6 mm. long, lanceolate, acute, probably reddish. 



Type locality : San Pedro Martir Mountain, northern Lower California. 

 Distribution : Known only from the type locality. 



39. Dudleya nubigena (Brand.) Britton & Rose, Bull. N. Y. Bot. 



Gard. 3: 22. 1903. 



Cotyledon nubigena Brand. Proc. Calif. Acad. II. 3 : 136. 1891. 



Glaucous ; basal leaves numerous, broadly spatulate to oblong-lanceolate, abruptly 

 acute, thick, 6-8 cm, long. Flowering stems 4-5 dm. high, divided at top into 2 or 3 one- 

 sided racemes, their leaves ovate, acute, cordate-clasping, 1 cm. long; pedicels 1-1.5 cm. 

 long, slender, ascending; calyx-lobes deltoid, acute, equaling or longer than the corolla- 

 tube ; corolla reddish, less than 1 cm. long, its segments separate to below the middle. 



Type locality : Summits of the Sierra de I^aguna, southern I,ower California. 

 Distribution : Southern I^ower California. 



40. Dudleya Xanti Rose, Bull. N. Y. Bot. Gard. 3 : 23. 1903. 



Resembling D. nubigena but of smaller stature. Basal leaves in a small but rather 

 dense rosette, broadly ovate, 4-5 cm. long, more or less glaucous; flowering stems 2-3 dm. 

 long, slender, usually 2-branched, forming long slender racemes ; pedicels slender, 8-12 mm. 

 long ; calyx small, deeply lobed, the lobes broadly ovate, obtuse or even rounded at apex. 



