216 COMPOSITE. Erigeron. 



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

 nate-apiculate (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 Humboldt and Mendo- 

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

 E. miser, Gray. Cespitose from a thickisli caudex or rootstock, canescently 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. — On Mount Stanford and vicinity, in the 

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



H — -f — 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 3-5- 



lobed or toothed : pappus simple. 



B. 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-toothed or incisely lobed : heads terminating short 



branchlets, short-peduncled : 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. 



-K- -t— -H- -t— 4— 4— -f— 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. hyssopif olius, Michx. Nearly glabrous, a span to a foot high, sparingly branched : 

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

 or lower somewhat spatulate, thinnish, entire, dn inch or less long : rays 3 lines long, white 

 or tinged with purple. — Fl. ii. 123; Gray, Proc. Am. Acad. xvi. 87. Aster graminif olius, 

 Pursh, PI. ii. 545; DC. Prodr. v. 227; Torr. & Gray, PI. ii. 156. Galatella graminifolia, 

 Hook. PI. 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 : akenes 

 mostly 4-nervecl : pappus quite simple : S. Atlantic species. — § Eriyeridium, Torr. & Gray. 



E. nudicaulis, Mipi-ix. 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 (Erigidium) vermis, Torr. & 

 Gray, PI. ii. 176. E. integrif olius, Bertol. Misc. Bot. vi. t. 3, not Bigel. Aster vernus, L. Spec, 

 ii. 876. Doronicum Icevifolium, Walt. Car. 205 ? Stenactis 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 stoloniform creeping root- 

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

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

 species not montane. 



•1— Eays not very narrow, not more than 60 or 70. 

 E. bellidif olius, Mt/hi.. Stoloniferous-cespitose, making rosulate offsets from slender 

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

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

 middle-sized 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, PI. ii. 170. 

 E. pulchellus, Michx. 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. Oregdnus, Gray. Perhaps only biennial, pubescent : rosulate tufts many-leaved, send- 

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



