^Q NORTH AMERICAN FLORA [V01.UMK 22 



petals narrowly lanceolate, very acute, yellow; follicles about 4 mm. long, the subulate 

 style-tips at length somewhat divergent. 



Type locality : On rocks on the banks of Clark's River and Kooskoosky. 



Distribution : In dry rocky soil, South Dakota to Alberta, Nebraska, New Mexico and Cali- 

 fornia. 



Illustrations : Regal, Gartenflora 1872 : pL 741a , Britt. & Brown, 111, FI./. 1815. 



23. Sedum reflexum L. Sp. PL ed. 2. 618. 1762. 



Perennial by a creeping stem producing numerous short barren shoots ; flowering 

 branches erect. Leaves alternate, sessile, imbricated on the sterile shoots, terete, somewhat 

 spurred at the base, 6-18 mm. long; cjrme 4-8-forked, its branches recurved in flower; 

 flowers 8-12 mm. broad ; petals linear, yellow, two to three times as long as the short ovate 

 sepals ; follicles about 3 mm. long, tipped with a slender somewhat divergent style. 



Type locality : Europe, at the base of mountains. 



Distribution : Massachusetts and New York, escaped from gardens. Native of Europe. 

 Illustrations: DC. PI. Grasses^/. 116; Engl. Bot. pi. 695 ; Fl. Deutsch. ed. 5. pi. 2652; 

 Britt. & Brown, 111. Fl./. 1816. 



24. Sedum Stahlii Solms, Sam. Bot. Gart. Stra^sb. 1900 : 4. 1900. 



Perennial, much branched, green or tinged with red, very fleshy, finely pubescent, the 

 branches weak, spreading, 2 dm. long or less, or the flowering ones ascending. Leaves 

 opposite or subopposite, sessile, ovoid-oblong, obtuse, nearly round in cross-section, 1-2 cm. 

 long, about half as thick as long, reddish ; cymes terminal, few-forked, the recurved 

 branches 6 cm. long or less; flowers almost sessile; sepals narrowly oblong, obtuse, 

 puberulent, about half as long as the petals ; petals bright-yellow, lanceolate, spreading, 

 about 8 mm. long, acuminate, with a short horn-like appendage below the tip on the outer 

 side ; stamens shorter than the petals ; carpels erect. 



Type locality ; Near Tehuacan , Puebla, Mexico. 

 Distribution : Known only from the type locality. 

 Illustration : Bot. Mag. pi. 7908. 



25. Sedum radiatum S. Wats. Proc. Am. Acad. 18 : 193. 1883. 



Annual, propagating by deciduous buds formed in the axils of the lowest leaves, or 

 perhaps perennial by basal rosettes ; stems simple or branched, 7-15 cm. high, decumbent 

 at the base. I^eaves oblong to ovate-oblong, obtuse or acutish, somewhat clasping, 5-12 

 mm. long, 2-4 mm. wide, papillose and veiny when dry ; cymes several- forked ; flowers 

 sessile ; calyx-segments much shorter than the petals, triangular, acute ; petals yellow, 

 narrowly lanceolate, acuminate, 7-12 mm. long; follicles subulate-tipped, 3-4 mm. long, 

 widely divergent from the slightly united bases. 



Type locality : Coast ranges of California. 

 Distribution : California and Oregon. 



26. Sedum vinicolor S. Wats. Proc. Am. Acad. 21 : 428. 1886. 



Annual or seemingly so, 4-8 cm. high, diffusely branched throughout, glabrous and 

 reddish. Basal leaves not seen ; stem-leaves closely set, ovate to narrowly oblong, 4-6 mm. 

 long, green or purplish, obtuse ; inflorescence cymose, few-flowered ; pedicels 2-4 mm, long ; 

 sepals distinct or nearly so, oblong-ovate, obtuse, extending backward below the point of 

 attachment, 2 mm. long ; petals white or purplish, twice as long as the petals ; carpels 

 widely spreading. 



Type locality : Norogachi,' Chihuahua, Mexico. 

 Distribution : Mountains of Chihuahua. 



27. Sedum Pringlei S. Wats. Proc. Am. Acad. 23 : 273. 1888. 



Annual or seemingly so, 5-8 cm. high, erect and somewhat branching, glabrous, 

 tuberif erous ; basal leaves not seen. Stem-leaves sessile, oblong-lanceolate, obtuse, 6 mm. 

 long; inflorescence cymose, .few-flowered; pedicels short, 2-3 mm. long; sepals 2 mm. 

 long, obtuse; petals 4 mm. long, acutish; carpels described as erect. 



Type locality : On hillside near Cusihuiriachic, Chihuahua, Mexico. 



Distribution : Only known from the original locality. 



