1907] Hall.Compositae of Southern California. 47 



Stems rigid, simple below the terminal panicle, the whole 

 plant 6 to 12 dm. high or in the mountains sometimes only 1.5 

 dm : herbage green and scabrous or grayish with a minute rough 

 pubescence : leaves oblong, acute at apex, tapering below to a nar- 

 row base or short petiole; the lower varying to oblong-obovate 

 and serrate, obtuse, sometimes 1 dm. long; the upper smaller, 

 narrow and entire : panicle usually compact and 5 to 20 cm. long, 

 composed of raceme-like clusters (reduced to a simple raceme 

 in dwarf plants, the branches numerous, elongated, and some- 

 what secund in well developed forms) : involucre 4 mm. high; 

 its bracts oblong-linear or lanceolate, rather obtuse, somewhat 

 pubescent: rays 7 to 12, light yellow, 2 mm. long: disk-flowers 

 rather more numerous: achenes pubescent. 



In dry open places, from the lower foothills to 3000 m. altitude 

 in the mountains ; Mexico to Oregon and Nevada. In the Sono- 

 ran Zone the plants are commonly grayish with a close pubes- 

 cence (the typical form, first gathered at Santa Barbara by 

 Nuttall) ; at high altitudes they are green and sparsely scabrous- 

 pubescent, sometimes dwarf and the inflorescence either simply 

 racemose (Bluff Lake, 2250 m. alt., Grinnell, no. 86) or branch- 

 ing below (Bluff Lake, Grinnell, no. 95). Normally flowering 

 from Aug. to Dec., but Mr. Parish notes a vernal-flowering form, 

 not otherwise distinguishable, that grows around springs in 

 Reche Canon, near San Bernardino. 



4. S. occidentalis (Nutt.) T. & G., Fl. ii. 226 (1842). Euth- 

 amia occidentalis, Nutt., Trans. Am. Philos. Soc. ser. 2, vii. 326 

 (1841). WP:STERN GOLDENROD. 



Stems from creeping rootstocks, very leafy, freely and pani- 

 culately branching above, the branches terminated by cymose 

 clusters of small heads (whole plant 1 or 2 m. high) : herbage 

 green, glabrous : leaves linear, entire but with faintly scabrous 

 margins, acute, 5 to 10 cm. long and 3 to 10 mm. broad except 

 the small upper ones, sprinkled with pellucid dots: involucre 4 

 or 5 mm. high ; its bracts lanceolate, acute, obscurely pubescent : 

 receptacle with erose or laciniate scales or bristles among the 

 disk-flowers: rays 16 to 20; disk-flowers 8 to 14: achenes tur- 

 binate, villous-pubescent. 



Common along streams, in wet meadow-land, etc., at lower al- 

 titudes throughout our district and northward. Aug.-Nov. 



