IQ2 BOTANY. 



tipped and sphacelate; rays 7-9, rather long; achenia striate, glabrous.— 

 Mackenzie River to the Saskatchewan, and southward to Colorado and New 

 Mexico. Near Salt Lake City, (Mrs. Carrington, Jlde Durand.) Canons of 

 the Wahsatch and Uintas ; 6-9,000 feet altitude ; July, August. (676.) 



Senecio FfiEMONTii, T. & G. Cray, Proc. Acad. Phil., March, 1863, 

 p. 61. Perennial, glabrous ; stems 1-several, 3-15' high, leafy to the top ; 

 leaves sessile, oblong or spatulate-obovate, somewhat fleshy, laciniately toothed 

 or obscurely dentate ; upper ones 9"-2' long, lower ones gradually smaller ; 

 heads short-peduncled, erect, solitary or few and corymbose ; involucre bell- 

 shaped, 4-6" long, scarcely calyculate; rays 10-16, one-half longer than the 

 involucre ; achenia glabrous, (puberulent. Gray.)— Wyoming and Colorado, 

 in high alpine regions ; also in the Rocky Mountains in 49° north latitude, 

 (Dr. Lyall.) Cottonwood Canon, Wahsatch, and in the Uintas above Bear 

 River Canon ; 8-12,000 feet elevation ; July, August. Plants much branched 

 from the base, and with leaves much smaller than those of the Colorado speci- 

 mens of Parry, Hall & Harbour, &c. (677.) 



Senecio amplectens, Gray. Proc. Acad. Phil., March, 1863, p. 77. 

 "Deciduously floccose-woolly, soon glabrate; stem 6-18' high from a peren- 

 nial root, naked toward the summit, and bearing 1-3 heads ; leaves membra- 

 naceous, oblong or tongue-shaped, repand or very sharply serrate, sometimes 

 slightly laciniate, lowest ones narrowed at the base or contracted into a 

 winged petiole ; upper ones sessile, partly clasping by a sometimes dilated 

 base ; heads nodding on slender peduncles ; involucre lax, calyculate ; the 

 golden rays linear, elongated, 1-2' long; achenia perfectly glabrous." — 

 Mountains of Colorado, (Parry ! Hall & Harbour I Vasey ! ) Var. taeaxi- 

 coiDES, Cray, I. c. "Truly alpine; stems 4-5' high, bearing single heads, 

 which are smaller and less nodding ; rays about half an inch long ; leaves all 

 narrowed at the base, more or less laciniate." — Bare alpine regions of the Colo- 

 rado peaks, (Parry, 28 ! ) Rocks below Clover Peak, Nevada ; 10,000 feet 

 elevation ; September. Plants 5-7' high, with much larger leaves than Par- 

 ry's, and the rays very scantily developed. One form has laciniately-toothed 

 leaves, (678,) and in another the leaves are entire, or at most obscurely den- 

 ticulate. (679.) 



PsATHYEOTES^ ANNUA, Cray. PL Wright. 2. 100; Proc. Ainer. Acad. 7. 



' PSATHYEOTES, Gray, I. c. Heads many-flowered, the flowers all alike, perfect, fertile. Corol- 

 las oylindiical with a very short proper tube, 5-toothed, the teeth short and very obtuse, villous exteriorly. 

 Involucre of two rows of scales as long aa the disk. Receptacle naked, flat or convex. Anthers linear, 



