64 NORTH AMERICAN FLORA [V01.UMK 22 



1-5 cm. long; flowers sessile or very short-pedicelled, about 7 mm. broad; petals yellow, 

 lanceolate, acute; follicles divergent, tipped with short subulate styles. 



Type locality : Near the Rocky Mountains. 

 Distribution : In dry soil, Missouri and Arkansas to Texas. 

 Illustration : Britt. & Brown, 111. Fl. /. 1814. 



12. Sedum Forreri Greene, Pittonia 1: 162. 1888. 



Sedum divergens Greene, Pittonia 1 : 154. 1888. Not 5. divergens S. Wats, 1882. 



Annual, roots fibrous. Plant 5-8 cm. high, divergently branched; leaves narrowly oval 

 or oblong, 2-5 mm. long, two or three times as long as wide, obtuse, sessile by a some- 

 what broader base ; flowers solitary or in pairs at the ends of the branches, 8-10 mm. 

 broad ; calyx- segments oblong-lanceolate, obtuse, about one-half as long as the oblong- 

 linear obtuse, white or faintly pink petals. 



Type locality : Higher Sierra Nevada back of the city of Durango, Mexico. 

 Distribution : Known only from the type locality. 



13. Sedum napiferum Peyritsch, Linnaea 30 : 50. 1859. 



Probably perennial although described as annual, with a thickened root, much branched, 

 3-4 cm. high, glabrous throughout. Basal leaves not seen ; stem-leaves (in dried speci- 

 mens) lanceolate, 3-5 mm. long, produced .backward at base ; inflorescence a few-flowered 

 cjTtne ; pedicels 3 mm. long or less; calyx-segments ovate, obtuse, about 2 mm. long; 

 petals rose-colored, 4-5 mm. long; carpels widely spreading in age. 



Type locality : Near the city of Toluca, Mexico. 

 Distribution : Type locality and vicinity. 



14. Sedum steUiforme S. Wats. Proc. Am. Acad. 20: 365. 1885. 



Perennial by a rootstock ; stems leafy, simple or branched, 5-12 cm. high, glabrous. 

 Leaves linear to linear-lanceolate, scattered, obtuse, 4-9 mm. long, about 2 mm. wide; 

 cyme few-forked, its branches 3 cm. long or less; pedicels very short ; calyx- segments lan- 

 ceolate to oblong-lanceolate, blunt ; petals white tinged with purple, about 6 mm. long, 

 lanceolate, acuminate, twice as long as the calyic and about equaling the stamens ; follicles 

 about 4 mm. long, subulate-tipped, vddely divergent. 



Type locality : Huachuca Mountains, southern Arizona. 

 Distribution : Mountains of New Mexico, Arizona and Chihuahua. 



15.* Sedum Bourgaei Hemsl. Diag-. PI. Nov. 1 : 11. 1878. 



Shrubby, very much branched, the branches slender and woody. Leaves numerous, 

 alternate, terete, linear, obtuse, 1-2 cm. long ; inflorescence a small lax few-branched cyme ; 

 flowers short-pedicelled ; calyx-lobes leaf-like, very unequal, distinct, produced backward 

 at base; petals white or pinkish (described as probably yellow), lanceolate, acute, 8 mm. 

 long ; carpels slightly spreading. 



Type locality : San Nicolas, Valley of Mexico. 

 Distribution : High valleys and mountaiuB of Central Mexico. 

 Illustration : Hemsl. Biol. Centr. Am. Bot. pi. 20. 



I 



16. Sedum calcaratum Rose, Bull. N. Y. Bot. Gard. 3: 40. 1903. 



Perennial (?), much branched, 5-8 cm. high, glabrous, more or less purple. Leaves 

 linear, "cylindrical," obtuse, 10-12 mm, long, alternate and scattered; flowers arranged 

 along one side of the branches, subsessile ; calyx-lobes 5, somewhat unequal, 2-3 mm. 

 long, green ; stamens 10 ; scales linear, about two-thirds the length of the filaments ; petals 

 red, 5 mm. long, obtuse ; carpels 5, widely spreading when mature, with long mucronate 

 tips. 



Type locality : El Salto near Dublan, Hidalgo, Mexico. 

 Distribution : Known only from the type locality. 



17. Sedum guadalajaranum S. Wats. Proc. Am. Acad. 22 : 411. 1887. 



Perennial by a branching rootstock, forming tuberous-thickened roots, much branched 

 at base, 1-2 dm. high, somewhat roughened, hardly '*puberulent." Stem-leaves thickly 



