216 COMPOSITE. Erigeron. 







lines high) short-peduncled heads : leaves spatulate-lanceolate or uppermost linear, mucro- 

 nate-apieulate (an inch or two long) : involucre villous; its bracts linear-lanceolate, equal. 

 Proc. Am. Acad. vii. 353, & Bot. Calif, i. 330. N. E. California, in liumboldt and Mendo- 

 cino Co., Bolandcr, Pringle ; the latter a nearly erect form. 



E. miser GRAY. Cespitose from a thickish caudex or rootstock, cauescently villous : stems 

 ascending, 3 to 5 inches high, leafy up to the solitary or few and small (3 lines high) heads : 

 leaves from oblong-spatulate to short-linear (4 to 8 lines long) : involucre glabrate or mi- 

 nutely glandular, short ; its bracts lanceolate or linear, acute : flowers comparatively few. 

 Proc. Am. Acad. xiii. 372, & Bot. Calif, ii. 445. Oil Mount Stanford and vicinity, in the 

 Sierra Nevada, California, Lobb, Kellogg, Greene, &c. : fl. late. 



-i_ -t -K- H -t -i S. Arizonian, with diffusely branched and trailing stems, very leafy 

 branches, bearing very small heads, soft-cinereous pubescence, and lower leaves commonly u-5- 

 lobed or toothed: pappus simple. 



E. Lemmoni, GRAY. Stems a foot or two long, apparently from slender creeping root- 

 stocks : leaves half-inch long or less, spatulate ; upper all entire, lower tapering into more 

 or less of a petiole, many of them 1-5-touthed or incisely lobed : heads terminating short 

 branchlets, short-peduucled : involucre 2 lines high : rays of about same length, 40 or 50, 

 light purple. Proc. Am. Acad. xix. 2. Tanner's Canon, Huachuca Mountains, S. Arizona, 

 Lemmon. 



+- -) -t -i -) -i -) Northeastern species, smooth and slender, erect, from filiform root- 

 stocks, leafy-stemmed, entire-leaved; with small and Aster-like heads of only 20 or 30 rays: 

 pappus quite simple. 



E. hyssopifolius, MICHX. Nearly glabrous, a span to a foot high, sparingly branched : 

 branches terminated by a solitary slender-peduucled head : leaves small and numerous, linear 

 or lower somewhat spatulate, thiuuish, entire, an inch or less long : rays 3 lines long, white 

 or tinged with purple. Fl. ii. 123; Gray, Proc. Am. Acad. xvi. 87. Aster (jrniiiiitifollun, 

 Pursh, Fl. ii. 545; DC. Prodr. v. 227; Torr. & Gray, Fl. ii. 156. Galatella r/raiuinifolia, 

 Hook. Fl. ii. 15. Moist and rocky banks, Newfoundland and New Brunswick to Hudson's 

 Bay, northern borders of New England to Lake Superior and Slave Lake ; first coll. by 

 Michaux. 



^ % ^ : Perennial by rosulate offsets, producing a scapiform stem from a rosette of radical leaves: 

 heads small and Aster-like, bearing only 20 or 30 rays : disk convex, only 3 lines broad : aUenes 

 mostly 4-nerved : pappus quite simple: S. Atlantic species. Erifferidium, Torr. & Gray. 



E. nudicaulis, MICHX. Glabrous or glabrate : scapiform stems solitary or occasionally 

 several from the rosette of obovate or spatulate thickish and sparingly denticulate leaves : 

 cauline leaves few and small, or merely bracts : heads several, corymbosely cymose : rays 

 white and pinkish, 2 or 3 lines long. Pursh, I.e. Erigeron (Eriijidium) vermts, Torr. ^c 

 Gray, Fl. ii. 176. E. iittii/r!fi>!ins, Bertol. Misc. Bot. vi. t. 3, not Bigel. Aster rernus, L. Spec. 

 ii. 876. Doronic.um Itrrifolium, Walt. Car. 205? Stcnar.tis verna, Nees, Ast. 275 ; DC. 1. c. 

 299. Low pine barrens near the coast, Virginia to Florida and Louisiana : fl. spring. 



***** Perennial by biennial rosulate offsets borne on apex of stolonifnnn creeping root- 

 stocks, or some species probably biennial : leaves membranaceous, commonly serrate or dentate : 

 beads middle-sized or small, with glabrate involucre: rays numerous : pappus quite simple: 

 species not montane. 



-i Rays not very narrow, not more thnn 60 or 70. 



E. bellidifolius, MUHL. Stoloniferous-cespitose, making rosulate offsets from slender 

 subterranean shoots, villous-hirsnte : flowering stems usually a foot or more high, simple, 

 naked above and bearing 3 to 9 (or, when depauperate, only single) nmbellately cymose 

 middlc-siy.ed heads: radical leaves cuneiform-obovate or spatulate, mostly coarsely few- 

 toothed, on very short-winged petioles; cauline few, oblong or lanceolate: bracts of the in- 

 volucre appressed: rays violet or bluish-purple, a third to half inch long: akenes almost 

 glabrous. Willd. Spec. iii. 1958; Sims, Bot. Mag. t. 2402; Torr. & Gray, Fl. ii. 170. 

 E. ]>ulr/if:ll.us, Miehx. Fl. ii. 124, excl. syn. Gronov. ; Darl. Fl. Cest. ed. 2, 492; Hook. Fl. ii. 

 19, excl. var. Damp ground, borders of woodlands, Canada to Illinois and Louisiana: 

 fl. spring. 



E. Oreganus, GRAY. Perhaps only biennial, pubescent : rosulate tufts many-leaved, send- 

 ing np weak or diffuse leafy stems of a span or two in length, bearing solitary or few rather 



