30 I^EAFLETS. 



At Buffalo Ranch, which must be among the western foot- 

 hills of the Sierra Nevada in middle California, collected only 

 by John B. Leiberg, 28 Sept. 1900. Plant with spicate heads, 

 yet very distinct from the altogether white- woolly L. tdrgatUy 

 which plant is spicate everywhere, and without those filiform 

 ultimate twigs which alone are floriferous in the present species. 



lyESSiNGiA GLOMEiRATA. Plants 6 to 15 inches high, sim- 

 ple at first, but parted much below the middle into several 

 fastigiately ascending very leafy branches, these again parting 

 into closely bracted branchlets bearing heads only at summit 

 and glomerately : basal and lower cauline leaves oblanceolate, 

 petiolate, all the upper broad, short, sessile, bract-like but 

 numerous, all, like the stem itself, white on both faces with a 

 floccose woolliness : heads small, subturbinate, or between 

 that and obovate, 5 to 10-flowered ; bracts of involucre gland- 

 ular-pulverulent, purple at the not very acute and slightly 

 spreading tips : pappus not copious, a trifle longer than the 

 oblong-linear silky achene. 



Plains and hills of Butte Co., collected by C. C. Parry, prob- 

 ably near Chico, 1882 ; then by Mrs. Austin, near Colby, 

 Sept. 1896. 



IvESSiNGiA CYMULOSA. Upright, 2 feet high, not stout, 

 parted below the middle into ascending branches, these sub- 

 divided to form an ample cymose panicle, the ultimate twigs 

 distinctly cymulose, with 1 to 3 heads at the end of each : 

 cauline leaves oblanceolate, thinnish for the genus, distinctly 

 and permanently flocculent on both faces as is also the stem 

 itself ; bracts of the slender twigs short, pungently acute, only 

 very sparsely woolly beneath, and there resinous-dotted : in- 

 volucres very small, turbinate, about 5-flowered, their bracts 

 oblong-linear, acute, glandular-scaberulous at the deep-purple 

 tip : pappus of the slender achenes coalescing at base to form 

 about 5 short paleae ending in the usual unequal bristles. 



Specimens, all in U. S. Herb, from near Chowchilla P. O., 

 Mariposa Co., 10 Oct. 1895, by I^ester F. Ward. A large 

 species, copiously floriferous with small heads subcymosely 



