Erigeron. COMPOSITE. 215 



— Mountains of Montana to those of Washington Terr, and sparingly of California; first 

 coll. by Nuttall. A soft-pubescent form, subalpine in Washington Terr, and E. Oregon, 

 Cusiclc, Brandegee, has white rays ; a similar one, coll. by Lyall near the British boundary, 

 has blue rays. Nuttall's character of achenium, "nearly smooth and striate," does not accord 

 with his specimens. 

 E. Breweri, Gkay. A span to a foot high from slender rootstocks, slender, erect or 

 ascending, leafy up to the solitary or several and corymbosely disposed heads, scabrous- 

 cinereous with minute spreading pubescence : leaves small (the largest barely inch long), 

 narrowly spatulate or uppermost nearly linear, obtuse : heads 3 or 4 lines high : involucre 

 glabrous or minutely granulose-glandular ; its bracts unequal, obtuse: rays 12 to 20, violet, 

 3 lines long. — Proc. Am. Acad. vi. 541, & Bot. Calif. 1. c. — Open woods of the Sierra 

 Nevada, California, from Kern Co. to Shasta ; first coll. by Brewer and Torrey. 



c. Stems (commonly from slender rootstocks) leafy, mostly branched above and bearing few or 

 several heads : pubescence not cinereous nor spreading, either strigose or none : pappus essen- 

 tially simple. 



B. decumbens, Nutt. Slender, commonly low or spreading, 6 to 1 8 inches high, strigulose- 

 pubescent or puberulent, or glabrate : leaves linear or sometimes linear-spatulate (radical 

 not rarely 4 to 6 inches long and only a line or two wide, sometimes 3 lines wide) : involucre 

 minutely hirsute or pubescent: rays 15 to 40, white, purplish, or violet-tinged. — Trans. 

 Am. Phil. Soc. 1. c. 309 ; Torr. & Gray, 1. c. — Mountains, from Montana and Utah to Oregon 

 and northern part of the Sierra Nevada, California ; first coll. by Douglas and Nuttall. 

 E. foliosUS, Nutt. A foot or two high, smooth and glabrous, or with some minute rough- 

 ish hairs, usually branched above, and bearing scattered or loosely corymbose heads : leaves 

 linear, obtuse, the larger an inch or two long and 2 or 3 lines wide, but often much narrower : 

 heads hemispherical, 3 or 4 lines high : involucre of somewhat unequal bracts, either 

 minutely puberulent-strigose or glabrous, rarely hirsute : rays 20 to 40, narrow, 3 to 5 lines 

 long, violet or purple, rarely white. — Trans. Am. Phil. Soc. 1. c, & PI. Gamb. 117 ; Gray, 

 Bot. Calif, i. 329 (excl. var. inornatus), & Proc. Am. Acad. xvi. 88. E. Douglasii, Torr. & 

 Gray, PI. ii. 177. E. decumbens, Benth. PI. Hartw. 316, not Nutt. Diplopappus occidentalis, 

 Hook. & Arn. Bot. Beech. 350. — Sparsely wooded ground, common nearly throughout Cali- 

 fornia, especially in the western parts ; first coll. by Douglas. Nuttall's name was given to 

 the broader-leaved form. This passes freely into 



Var. stenoph^Uus, Gray, 1. c. A common form, with leaves from only a line wide 

 to slender and filiform. — E. stenophyllus, Nutt. PI. Gamb. 176, not Gray. — Same range, 

 and equally common. 



Var. tenuissimus. Slender, small-leaved : leaves nearly all filiform, erect or ascend- 

 ing ; the longest only an inch long ; upper gradually shorter, becoming setaceous-subulate : 

 heads much smaller. — San Diego Co. on the Mexican border, and within Lower California, 

 Parry, Palmer, Orcutt. 



= = := = Heads wholly rayless : stems leafy to the summit: pappus simple. 



E. inornatus, Gray. Commonly glabrous throughout and smooth, or with some sparse 

 hirsute pubescence: stems 10 to 20 inches high, erect: leaves from broadly to narrowly 

 linear (an inch or two long, a line or two wide) : heads usually several and cymosely 

 disposed at the summit of the stem, ghort-peduncled, 3 lines high : involucre campanulate ; 

 its bracts unequal and somewhat imbricated, very glabrous. — Proc. Am. Acad. xvi. 88. 

 E. foliosus, var. inornatus, Gray, Bot. Calif, i. 330. — Pine woods, Sierra Nevada and 

 coast ranges of California to those of E. Oregon and Washington Territory ; first coll. by 

 Newberry. Comes near some forms of E. foliosus, but rayless. 



Var. angUStatUS. Leaves very narrowly linear or almost filiform : heads few or 

 scattered and paniculate. — Bed Mountain, Mendocino Co., California, Kellogg & Harford, 

 and Napa Co., Greene. 



Var. visoldulus. Low and stouter: heads fewer and larger (4 lines high): leaves 

 spatulate-linear, shorter (seldom an inch long) : stems and peduncles occasionally hirsute- 

 pubescent, and as well as the leaves commonly more or less viscid. — Mountains of northern 

 part of California, Kellogg & Harford, Pringle. 



E. supplex, Gray. Villous-hirsute : stems decumbent or ascending from a slender root- 

 stock, mostly simple, a span to a foot long, terminated by single and very broad (5 to 6 



