460 SYNGENESIA [Asteroid** 



less sorratc-dentate, on a margined petiole % to 4 or 6 inches long; stem-leaves 

 gradually smaller, varying from elliptic to ovate-lanceolate, and lanceolate, nar- 

 rowed at base to a short petiole, more or less serrate, the upper ones entire, sessile, 

 or subscssile,— all smooth, coriaceous, and scabrous on the margin. Heads of 

 flowers rather large, numerous, clustered and racemose on axillary branches, 

 which are somewhat elongated, forming a terminal panicle ; branches and pedicels 

 pubescent ; bracts lance-oblong, smoothish ; involucre smoothish, the leaflets 

 oblong, mostly obtuse ; rays large. Akenes striate, smooth. 

 Hab. Schuylkjll, at Black Rock ; West Chester : rare. Ft. Sept. Fr. October. 



Obs. Collected by D. Townsf.no, Esq. in 183 >. This appears to be the S. petf. 

 olaris, of Muhlenberg's Herbarium; but it can hardly be Aiton's plant, — if the 

 description may be relied upon. It m;iy, also, be the S. sempervireiis, of M x ., but 

 certainly not of Linn* AM* Hook. &c. The specimen of S. sempervirens men- 

 tioned by Prof. Hooker (fVor.ffeor. Am. 2. p. 3.) as having been received from 

 West Chester, was, in fact, collected in North Carolina ; and sent to me (labelled 

 H. limonifolia) by my obliging friend, the Rev. M. A. Curtis. 



14. S. fleticaults, /,. Stem smooth, mostly flexuose, angular ; 

 leaves lancc-ovate, and elliptic- lanceolate, acuminate, serrate, smoothish 

 above, more or less pilose beneath ; racemes axillary, erect, somewhat 

 oblong. Beck, Bot. p. 192. 



CnoOKEn-STEM Soi.mAGO. 



Stem 18 inches to 3 feet high, rather slender, simple, generally flexuose, some- 

 what angular, striate, smooth, and mostly green. Leaves 3 or 4 inc hes long, and 

 3 fourths of an inch to near 2 inches wide, elliptic-lanceolate, acuminate, cuneately 

 tapering at base, subsessile, sharply and unequally incised-serrate, smooth above, 

 somewhat pilose on the midrib and veins beneath, seabrous-ciliate on the margin, 

 the uppermost ones entire. Heads of flowers middle-sized, in short racemose 

 rather oblong axillary clusters; branches and jmliccls pubescent; bracts spatu- 

 late-oblong ; involucre smooth, the leaflets spatulate-linear, obtuse, minutely cili- 

 ate; rai/s miJdle-sized. Akenes hairy. 



Var. b. IdtifoUa, L. Leaves broadly ovate, acuminate at each end, 

 sharply laciniate-serrate, pilose beneath. 



S. latifolia. Mnhl Catal. f>. 7f>. Bart. Phili.p. 123. Tow. Cornp. 

 p. 304. JAndl. Ency. p. 712. Eat. Man. p. 319. 



Stem mostly flexuose, angular, smooth. Leaves 3 or 4 inches long, and an inch 

 and half to near 3 inches wide, of a Ihlnnfeh texture, ovate, or broad-elliptic* 

 conspicuously acuminate, sharply deeply and unequally serrate, so as often to 

 appear somewhat laciniate, scabrous on the margin, and somewhat so on the veins 

 of the upper surface, hairy beneath, abruptly narrowed at base to a tapering 

 margined and mostly ciliate j^/io/c alwut as long as the acuminatum at apex. In- 

 florescence nearly similar to that of the other variety. 



Hab. Woodlands; along Brandywine, &c. frequent. Ft. Sept. Fr. October. 



Obs. Collected by D. Town-send, Esq. in 1829. The var. latifolia has been 



made a distinct species by Muhlenberg, and others,— and it certainly does often 



assume a strikingly different appearance in its foliage ; but as we find specimens 



of an intermediate character, which evidently connect the extremes of variation, 



I have thought it best to reduce them to one species. 



15. S. c.hsia, J j. Stem smooth, upright, terete, glaucous; leaves 

 lanceolate, acuminate, serrate, smooth; racemes axillary, erect, sub- 

 globose. Becky Bot. p. 191, 



