1907] Hall. Compositae of Southern California. 45 



11. SOLIDAGO L. GOLDENROD. 



Perennial herbs with alternate leaves. Heads small, the 

 raceme-like clusters aggregated into a pyramidal or spike-like 

 panicle, or in one of our species the heads cymose. Bracts of 

 the involucre narrow, thin or chartaceous, mostly destitute of 

 herbaceous tips, imbricated in two or more series. Rays short, 

 yellow, as also are the disk-flowers. Pappus-bristles slender, 

 numerous, in one or two series, equal and dull white in our 

 species. Achenes terete, 5 to 12-nerved. 



Heads in paniculate racemes: rays fewer in number than the disk-flowers. 

 Herbage very smooth, glabrous. 



Involucre 5 or 6 mm. high: lower leaves broadly spatulate or obovate 



1. S. spathuliita. 



Involucre 3 or 4 mm. high: leaves lanceolate or oblong 



2. 8. con-finis. 



Herbage rough or cinereous-pubescent 3. S. Californica. 



Heads more or less distinctly cymose: rays minute, more numerous than the 

 disk-flowers: herbage glabrous 4. S. occidentalis. 



1. S. spathulata DC., Prodr. v. 339 (1836). S. limonifolia 

 Nutt, Trans. Am. Philos. Soc. ser. 2, vii. 328 (1841) ? COAST 

 GOLDENROD. 



Three to 6 dm. high : stems several from the strong root, de- 

 cumbent or erect, clothed below with broad leaf-bases, simple 

 up to the narrow compact often spike-like thyrsus: herbage 

 glabrous, slightly glutinous: leaves mostly basal, spatulate, 

 rounded at apex, narrowed to a margined petiole; lower ones 5 

 to 12 cm. long by 2 or 3 cm. broad, serrate above the middle: 

 involucre 5 or 6 mm. high and about as broad, its bracts linear- 

 oblong to oblong: rays about 7 or 8, short and inconspicuous; 

 disk-flowers twice as many : achenes silky-pubescent. 



Near Santa Barbara, "between Hatch's wharf and Monti- 

 cello," 1888, Mrs. Brandegee; common near the coast from mid- 

 dle California to Humboldt Bay. 



2. S. confinis Gray, Proc. Am. Acad. xvii. 191 (1882). 

 Stems simple and leafy up to the terminal panicle : herbage 



pale green, completely glabrous or rarely with a sparse minute 

 pubescence above : leaves narrowly lanceolate, acuminate but not 



