272 PITTONIA. 
6. P. Cooprrt. Actinella Cooperi, Gray, Proc. Am. Acad. 
vii. 359 (1868). Somewhat like the last; but of the moun- 
tains of the Mohave Desert region in California. 
7. P.Lemmont. Evidently perennial, glabrousand strongly 
punctate, the rather slender stems 11 feet high, not rosu- 
lately nor densely leafy at base; the lowest leaves on rather 
coarse elongated erect petioles 5 or 6 inches long, the blade 
only 2 inches, pinnately cut into about 3 pairs of divaricate 
linear lobes: heads middle-sized in a corymbose cyme; 
bracts of the involuere subequal, the outer series ovate-lan- 
ceolate, the inner oblong, obtuse. 
Mountains of California, probably northward ; collected 
only by J.G. Lemmon, and by Dr. Gray, erroneously re- 
ferred to his A. biennis. 
—. &. P.FLORIBUNDA. ‘Attinella Richardsonii, var. floribunda, 
Gray, Pl. Fendl. 101. Taller and more slender than P. 
Richardsonii, the wool at base of stem more silky ; stems 
repeatedly branched; heads many times more numerous, 
of less than half the size, forming a broad flat-topped 1n- 
florescence: pales of the pappus lanceolate, some slenderly 
accuminate, others not so. 
Foothills and plains about Santa Fé, New Mexico. - 
** Annuals, or the first possibly biennial. 
9. P. BIENNIS. Actinella biennis, Gray, Proc. Am. Acad. 
xiii. 973 (1878) in part, excluding the Actinella Richardsonii, 
var. biennis. Probably only a winter annual; stoutish, erect 
and rather strict, 2 feet high, glabrous, thin-leaved, pune 
tate; lowest leaves 3 inches long, petiolate, simple and linear, 
or some with 3 to 5 narrowly linear segments, the middle 
cauline sessile, simple or pinnate: heads small, terminating 
the long strict branches: involucre hemispherical, its outer 
bracts ovate-lanceolate, slightly joined, traversed by a strong 
midrib: pappus pales with subulate point as long as the 
ovate body. 
Rock Creek, Utah; collected only by E. Palmer, 1877 (a. — 
261). idt 
