ADDITIONS AND CORRECTIONS TO VOL. I. 455 



9. B. graveolens, var. glabrata, Gray. Low grounds near the sea, 12 miles 

 south of (Santa -Barbara, Mrs. Elwood Cooper. This species, where prevalent, is often 

 known as " Rabbit Bush." 



Page 321. 20 a . TOWNSENDIA, Hook. 



Dwarf acaulescent or depressed-branching annuals or perennials, with linear or 

 spatulate entire leaves, and large heads of whitish or rose-colored flowers. Pappus 

 a single series of unequal rigid scabrous bristles" thickened or dilated toward the 

 base. Akenes villous, strongly compressed, with somewhat thickened margins. 

 Otherwise nearly as Aster. 



Seventeen species are known, confined chiefly to the Rocky Mountain region, only the follow- 

 ing approaching the borders of California. 



1. T. scapigera, Eaton. Biennial, finely hoary-pubescent : leaves radical, broadly 

 spatulate, obtuse or emarginate, an inch or two long : stems several, simple, scape- 

 like, 2 to 4 inches high, 1 - 2-bracted : heads solitary, an inch broad or more, the 

 pinkish ray flowers twice longer than the herbaceous hairy oblong-lanceolate involu- 

 cral scales : pappus of the ray slightly shorter than that of the disk. Bot. Kin" 

 Exp. 145, t. 17. 



Modoc County, Fort Bidwell (Mrs. Austin) ; hillsides, Northern Nevada, Watson, Wheeler, 

 Lemnwii. Flowering in early spring. 



T. FLORIFER, Gray, Ms. A similar species, with numerous stems from an annual root, often 

 branching, leafy, subdecumbent, 4 to 8 inches high, white villous-pubescent : leaves narrowly 

 oblanceolate, acute, long-petiolate : involucre 4 or 5 lines long, the linear acuminate bracts nearly 

 equal. Erigeron (f) florifer, Hook. Fi. Bor.-A.rn. ii. 20. Aplopnppus fiorifer, Hook. & Arn. 

 Bot. Beechey, 351. Sf.enot.us florifcr, Torr. & Gray, Fl. ii. 238. T. slrigosa, Gray, Bot. Wilkes 

 Exp. 344, not Nutt. Baker City, Oregon (Nevius) ; Union County, Oregon (Cusick), and north- 

 ward to the British boundary, Douglas, Wyeth, Lyall, etc. 



Page 322. 21. ASTER. 



4. A. Shastensis, Gray. Siskiyou Mountains, E. L. Greene ; a rayless form. 



14. A. Andersonii, Gray. Foot of Mount Whitney (Rothrock) ; Mount Shasta, 

 Hooker & Gray. 



15. A. divaricatus, Nutt. A. tenue, Kellogg, Proc. Calif. Acad. vii. 114. 

 Apparently a form of this species with reduced heads. 



Page 328. 23. ERIGERON. 



7. E. Bloomeri, Gray. Near Yreka, E. L. Greene. 



8. E. ochroleucum, Nutt. The flowers are reported as "golden yellow" 

 (Oregon, Nevius) and " bright yellow " (Eraser River, Macoun). 



ll a . Erigeron decumbens, Nutt. " Between E. corymbosum and E. foliosum, 

 but with the involucre of the former : stems numerous from a slender rootstock, a 

 span or more high, spreading or ascending from the base, leafy, bearing few or some- 

 times solitary short-peduncled heads ; leaves all linear (lower 4 or 5 inches long, 2 

 lines wide) : rays mostly fewer than in E. corymbosum and white or purple-tinged : 

 outer pappus obscure. Proc. Am. Phil. Soc. 2. ser. vii. 309 ; Torr. & Gray, Fl. 

 ii. 178." Dr. Gray. 



Plumas County, on Mount Dyer (Mrs. Austin) ; Sierra County (Lemmon) ; also in Oregon. 



13 a . E. miser, Gray. Very like E. supplex : stems bearing 1 to 5 smaller 

 corymbose heads : involucral scales narrowly subulate, unequal, puberulent, about 2 

 lines long : rays none : akenes hirsute, 2-nerved : outer pappus manifest, bristly. 

 Proc. Amer. Acad. xiii. 372. 



Crevices of rocks near Dormer Lake (Greene); on Mt. Stanford, Kellogg, Lemmon, Hooker & Gray. 



