composite. 363 



7. Artemisia Tilesii, Ledeb. 



Hab. Point Discovery, &c, Washington Territory. Probably only 

 a form of A. vulgaris. 



8. Artemisia pycnocephala, DC. 



Hab. California ; common in the vicinity of San Francisco, where 

 it was collected by Chamisso. 



9. Artemisia biennis, Willd. 



Hab. San Francisco, California. — Specimens depauperate and too 

 young, but apparently of this species, not before detected on the 

 Pacific Coast. It occurs in the Himalayas. 



10. Artemisia Californica, Less. 



Artemisia Californica, Less, in Linnsea, 6, p. 523; Hook. & Am. Bot. Beech, p. 150; 



Bess, in Linnsea, 15, pp. 93, 109 ; Torr. & Gray, 1. c, p. 424. 

 A. Fischeriana, Bess, in DC. Prodr. 6, p. 105 ; Torr. & Gray, 1. c. 

 A. abrotanoides & A.foliosa, Nutt. in Trans. Amer. Phil. Soc. n. ser. 7, p. 397. 



Hab. San Francisco and on the lower part of the Sacramento, 

 California. 



52. G N A P H A L I U M, Linn. 

 1. Gnaphalium ramosissimum, Nutt. 



Gnaphalium ramosissimum, Nutt. PI. Gamb. in Jour. Acad. Philad., n. ser. 1, 



p. 173. 

 G. Sprengelii f var. erubeseens, Nutt. in Trans. Amer. Phil. Soc. n. ser. 7, p. 403. 

 G. Californicum, var. ? Torr. & Gray, Fl. 2, p. 426. 



Hab. San Francisco, California (where it was also gathered by Mr. 

 Barclay) ; with slightly rose-tinted involucre ; and on the Sacramento, 



