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, 

 Cusick, Branclegee, has white rays; a similar one, coll. by Lya.ll near the British boundary] 

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

 with his specimens. 



E. Breweri, GRAY. 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 Torre y. 



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- 

 tial ly simple. 



E. decumbens, NTJTT. Slender, commonly low or spreading, 6 to 18 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. follOSUS, 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 linos 

 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, Fl. ii. 177. E. decumbens, Benth. PL Hartw. 316, not Nutt. Diplopappus occirlen/alis, 

 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. stenophyllus, GRAY, 1. c. A common form, with leaves from only a line wide 

 to slender and filiform. E. stenophyllus, Nutt. PL 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, Orcult. 



= = = = 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 cymoscly 

 disposed at the summit of the stem, short-peduncled, 3 lines high: involucre campanula! < ; 

 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 

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



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

 scattered and paniculate. Red Mountain, Mendocino Co., California, Kellogg & Harfonl, 

 and Napa Co., Greene. 



Var. viSGldulus. 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-hirsnte : 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 



