ADDITIONS AXD CORRECTIONS TO VOL. I. 4.fJ5 



9. B. graveolens, \ar. glabrata, (Jray. Low grounds near tlie sea, 12 miles 

 soutli of >Saiit;i llarliani, J/r.s-. Klu'mtd L'ooptr. This species, where prevalent, is often 

 known as " iiabbit IJush." 



Page 321. 20\ TOWNSENDIA, Hook. 



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

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

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

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

 Otherwise nearly as Aster. 



Seventeen species arc known, confined cliiefly 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, oljtuse or emarginate, an inch or two long : stems several, simple, scajte- 

 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. — iJot. Kiu" 

 Exp. 145, t. 17. 



Modoc County, Fort Bidwell {Mrs. Justin) ; hillsides. Northern Nevada, Watson, IFhcdcr, 

 Lemmon. 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. — ErigeroH (J) Jlorifer, Hook. Fi. Bor.-Am. ii. 20. jplopn])pus florifcr. Hook. & Am. 

 Bot. Beechey, 351. Stenotics florifcr, Torr. & Gray, Fl. ii. 238. T. drigosa,' Gray, Bot. Wilkes 

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

 ward to the British boundary, Douglas, Wyeth, Lijall, 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 (Eothrock) ; 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 " (Fraser River, Macoun). 



ll^ Erigeron decumbens, Nutt. "Between^. cor7jmho.^um and E. fo/iosum, 

 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. corymhosum and white or purple-tinged : 

 outer pappus obscure. — Proc. Am. Phil. Soc. 2. ser. vii. 301); Torr. «\; Gray, FI. 

 ii. 178." — Dr. Gray. 



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



13". E. miser, Gray. Very like E. siqyplex : 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 j)appus manifest, bristly. — 

 Proc. Amer. Acad. xiii. 372. 



Crevices of rocks near Donner Lake (Greene); on Mt. Stanford, KcUogfj, Lemmon, Hooker k Ora\j 



