446 ADDITIONS. 



167. HYMENATHERUM, p. 357, add: 



§ 2*. Heterociieojiea. Palese of the simple pappus 10, little shorter than 

 the slender akeue and the disk-corolla, lanceolate, resolved aljove into 5 or 7 awns, 

 the central one longer, and the lateral successivelj' shorter : rays white ! 



H. concinnum. Depressed and spreading from the annual root, mostly glabrous, glau- 

 cescent : leaves chiefly alternate, thickish, pinuately parted into narrowly linear obtuse and 

 pointless divisions : heads sessile and clustered at summit of the short leafy branchlets : in- 

 volucre 12-14-toothed, nearly naked at base: rays 10 or 12, the showy oblong ligules (2 lines 

 long) bright white; the disk-flowers yellow. — Arizona, on the borders of Sonora, 1884, 

 Pringle. — A handsome species, anomalous for its heterochromous flowers; and in other re- 

 spects serving to connect the first two sections with true Ui/menatherum. 



192. SENECIO, at end of genus, p. 394, add : 



# * # * Indigenous winter annual: heads rayless or with a few minute rays. 

 S. Mohavensis. Glabrous, branching from the base, rather slender, leafy to the loose 

 polycephalous panicle : lea\'es ovate or oblong, sinuate-dentate or sparingly incised , cauline 

 all more or less cordate-clasping or auriculate: heads slender-peduncled, 4 lines liigh : invo- 

 lucre narrow-campanulate, 18-20-flowered; calyculate bracts few and inconspicuous: ray- 

 flowers when present with corolla commonly biligulate, not surpassing tlie disk-flowers: 

 akenes canescent. — S. E. California on or near the Mohave and Colorado Kivers, Lemmon. 

 (Also within the borders of Sonora, Mex., Pnngle) 



226: HIERACIUM, to H. Marianum, p. 420, add: 



Var. spathulatum. A mountain form ■ leaves all or mainly radical, unusually 

 setose-hirsute or long-villous : scapiform stem simple, 10 to 16 inches high, bearing few 

 rather short-pedicelled heads. — //. lovijipilimi, var. spatlmlulvm, at foot of p. 426, which is 

 to be cancelled. Pilosella spathulata, Schultz Bip. in Flora, 1862, 439 — On Tuscarora or 

 Two-top Jlountain, Franklin Co., Pennsylvania, Porter and TiailL Green {1845 and 1884) , 

 flowering and fruiting iu June. 



Page 355. Nicolletia occidentalis proves to be a deep-rooted perennial, according to Lemmou 

 and Parish. Possibly N. Edwardsii is also perennial. 



Page 415. Eajinesquia Californica not rarely has pale rose-colored ray-flowers. 



