Erigeron. composite. 171 



2K 1958; Bot. mag. t. 2402 ; Pursh! fl. 2._2?. 502 ; Ell. si: 2. p. 393; DC! 

 2)rodr. 5. jj. 285. E. pulchellum, Mkhx. ! fl. 2. p. 124 (excl. syn. Gronov. 

 whicli relates lo Marshallia!) ; Darlingt.fl. Cesi. p. 472 ; notof jDC, nor of 

 Hook. 1 



Borders of woods and thickets, Canada! (and in the wooded country from 

 lat. 54°-64°, fide Richardson) to Louisiana ! May-June, or in the Southern 

 States, March-April. — Stem simple, 9-20 inches high. Radical leaves 

 clustered, 2-3 inches long, and 1-2 wide, very obtuse. Cauline leaves often 

 very few, but sometimesnumerous. Pedicels thickened or obconical at the 

 summit. Pappus simple. — Varies considerably in the degree of the pubes- 

 cence, the more or less entire or toothed leaves ; but perfectly distinguished 

 from E. Philadelphicum (with which it has sometimes been confounded) by 

 the larger heads, bluish-purple (not reddish-purple) much broader rays, gla- 

 brous achenia, and by the stolons, &c. It is the earliest-flowering species in 

 the Northern States. — The plant we have under the name of E. pulchellus, 

 Hookifl. Bor.-Am., is the same with the E. glabellus (3. of the same work, 

 whence (although it may have been so labelled by mistake) we have not 

 cited the synonym here, particularly as the character does not well accord 

 with our E. bellidifoliura. Hooker also mentions a variety from Oregon, 

 with the leaves deeply toothed, which is probably what we consider a variety 

 of E. Philadelphicum. 



17. E. Philadelphicum (Linn.) : hirsute or hairy ; stem slender, loosely 

 corymbose above ; leaves membranaceous, with a conspicuous midrib, 

 ciliate ; the radical and lowermost spatulate-oblong, tapering into a slender 

 base or margined petiole, obtusely serrate or nearly entire; the upper cauline 

 oblong, clasping and mostly cordate at the base, entire, or rarely somewhat 

 serrate ; heads corymbose (rather small) ; rays innumerable, very narrow, 

 pale reddish-purple or flesh-color, more than twice the length of the invo- 

 lucre ; achenia minutely hairy. — Linn. ! spec. 2. p. 863 ; Willd. ! spec, 3. 

 p. 1957 ; Michx. ! fl. 2. p. 123 ; Pursh! fl. 2. p. 533; Darlingt.! fl. Cest. 

 p. 462 ; Hook. conijMn. to bot. mag. 1. p. 96; not of Ell. or DC, nor of 

 Bart. E. purpureum, Ait. Kew. {ed. 1.) 3. p. 186; Pursh! I. c. ; Hook.! 

 fl. Bor.-Am. 2. p. 19; DC! prodr.b. p. 286. E. amplexicaule, Torr. ! 

 in Short, cat. Kentucky p>lants. 



(i. stem stout; cauline leaves larger, mostly coarsely and sharply serrate ; 

 corymbs compound ; rays pale or nearly white. 



y. ? stem tall and stout, glabrous above, as also the numerous sharply 

 serrate leaves; cor3rmbs compound. 



6. " stem elongated and slender towards the summit, very hairy at the 

 base; radical leaves spatulate-lanceolate, dentate ; flowers white ; the rays 

 rot much longer than the disk." Nutt. — E. purpureum /?. attenuatum, 

 Nutt. ! in trans. Amer. phil. soc. {n. ser.) 7. p. 307. 



Woodlands and fields, common nearly throughout North America, from 

 Hudson's Bay and the Arctic Circle (Richardson) Saskatchawan ! &c. to 

 Louisiana! and west to Oregon ! and California / y. Oregon, Dr. Scolder! 

 Drummond ! 6. Oregon am\ Arkansns, Nuttall ! June-Aug; the varieties 

 (3. 6c y. commencing in April or May in the Southern States. — Stem 1-2, 

 in 13. & y. often more than 3 feet high, villous-hirsute towards the base. 

 Leaves bright green, thin ; the broad and whitish midrib conspicuous under- 

 neath. Pedicels naked, thickened at the summit. Scales of the involucre 

 somewhat hairy on the back; the margins scarious. Pappus simple. — 

 Variable as to size &c., but a well-markecl species. The var. 6. appears to 

 be an attenuated state of /3., and like it has very pale rays, and probably 

 grows in shade. — We know not why Linna3us apphed to this species the 

 name of E. Philadelphicum, since his specimen, communicated by Kalm, is 

 said to come from Canada. 



