24 NORTH AMERICAN FLORA [Voi<UME 22 



inflorescence an elongated panicle, 4-6 dm. long, its branches composed of one-sided racemes ; 

 sepals lanceolate, acuminate, half as long as the corolla ; corolla 15-18 mm. long, red. 



Type locality : Tultenango Canon, Mexico. 

 Distribution : Known only from the type locality. 



46. Echeveria Palmed Rose, Bull. N. Y. Bot. G-ard. 3 : 10. 1903. 



Acaulescent. Leaves numerous, erect or slightly spreading, pale-green, at first some- 

 what glaucous, with reddish margins, rhomboid or oblanceolate, the largest ones 2 dm. long, 

 1 dm. broad at widest part, narrowed at base and there 2-4 cm. broad, flat and fleshy but 

 not very thick except at base, acute ; flowering branches thick and stout, 6-8 dm. high, 

 green and slightly glaucous below, reddish or rose-colored above, bearing a few scattered 

 oblong leaves 4-5 cm. long ; inflorescence a rather compact panicle, 1-2 dm. long, its 

 branches somewhat glaucous, short, 3-4-flowered ; pedicels stout, 3-6 mm. long ; calyx 

 deeply 5-parted ; lobes very unequal, linear to narrowly ovate, acute, the longer ones 10 

 mm. long ; corolla-buds sharply 5-angled, acute, broadly ovate in outline, somewhat glau- 

 cous ; corolla 2 cm. long, 12 mm. broad at base, reddish-yellow, deeply parted into 5 lobes, 

 the tube proper only 3 mm. long ; lobes oblong, thickish, somewhat spreading at tip but 

 connivent in age, gibbous at base ; stamens 10, all inserted at top of corolla-tube, those 

 opposite the petals broad at base ; appendages lunate, deep-purple, depressed in the center ; 

 carpels erect, distinct or nearly so, tapering into the slender purple styles ; ovules many. 



Type locality : High mountains about Alvarez near the city of San Luis Potosi, Mexico. 

 Distribution : Known only from the type locality. 



47. Echeveria Walpoleana Rose, Contr. U. S. Nat. Herb. 8 : 295. 1905. 



Acaulescent or becoming shortly caulescent in age. Leaves forming a dense rosette, at 

 first pale-green with reddish margins but becoming deeply tinged with red throughout, 

 thickish, rounded on the back, boat-shaped above, sharply acute, 6-8 cm. long, 2-2.5 cm. 

 broad, glabrous; flowering stem 30-40 cm. long, its leaves thickish, acute j inflorescence 

 two-branched, each branch a secund raceme of 8-10 flowers ; pedicels very short ; sepals 

 spreading, ovate, acute, green; corolla about 14 mm. long, deeply orange-colored, the lobes 

 erect, very thick, triangular in cross-section, acute; stamens about half the length of the 

 corolla-lobes and attached near the top of the corolla-tube ; carpels erect. 



Collected by Dr. K. Palmer near L,as Canoas, San Luis Potosi, Mexico, November, 1902, and 

 flowered in Washington, in August, 1903. 



48. Echeveria acutifolia Lindl. Bot. Reg. 28 : pL 29. 1842. 



Cotyledon acutifolia Baker, in Saund. Ref . Bot. 1 : sub pi. 71^ no. 34. 1869. 



Caulescent, glabrous throughout. Leaves rhomboid, concave, strongly narrowed at 

 base ; inflorescence a narrow erect panicle ; sepals narrow, very unequal ; corolla red, more 



or less tinged with yellow in age, 5-angled. 



Type locality : Oaxaca. 



Distribution : Known only from the type locality. 



ILLTJSTRATION : Liudlcy, loc. cit. 



49. Echeveria stolonifera (Baker) Otto, Hamb. Gartenz. 29: 9. 1873. 



Cotyledon stolonifera Baker, in Saund. Ref. Bot. 1 : pi, 63. 1869. 



Short- caulescent ; stoloniferous. Leaves 30-40, in a dense rosette, abovate to spatulate, 

 5-6 cm. long, bright-green, slightly glaucous; flowers 4-6 '*in a close cyme" ; sepals very- 

 unequal, linear ; corolla yellowish, decidedly 5-angled. 



Type locality : Mexico.' 



Distribution : Known only from the type locality. 



Illustration : Baker, loc. cit. 



50. Echeveria obtusifolia Rose, Bull. N. Y. Bot. Gard. 3 : 8. 1903. 



Acaulescent, perhaps sometimes short-caulescent, glabrous throughout. Leaves spread- 

 ing, forming a rosette 2 dm. broad or more, oblanceolate, rounded at apex, 3.5 cm. broad 

 at widest point, narrowed to 5 mm. at base, thinnish ; flowering branches 2-3 dm. long, 



