AffUOXM*] SYWGENESIA 455 



enes sub-terete, many-ribbed. Receptacle mostly naked, punctate. 

 Root perennial ; leaves attentate, more or less lanceolate, or spatu* 

 late, never cordate; inflorescence gerierally racemose-paniculate ; 

 florets, both of ray and disk, yelloio. 



§ 1. Receptacle naked, f Racemes setund. 



9 Leaves sub-triplinerved. 



1. S. canadensis, Z. Stemvillose; leaves lanceolate, serrate, tripli- 

 nerved, roughish on the upper surface, pubescent beneath ; raceme* 

 paniculate, recurved ; rays short. Beck, Bot. p. 188. 

 Canadian Solidago. Vulgo — Golden rod. 



Siem2to4 or 5 feet high, erect, striate, villose-pubescent, simple, somewhat 

 oorymbosepaniculate at summit. Leaves numerous, sessile, 2 or 3 to 3 or 6 inches 

 long, and 1 third of an inch to an inch wide, very acute, or acuminate, narrowed 

 atoase, more or less serrate (the upper ones often entire), roughish above, with 

 triple whitish nerves, and a short softish somewhat hoary pubescence, beneath. 

 Heads of flowers in secund racemes, on recurved corymbose-paniculate branches ; 

 branches and pedicels pubescent; bracts lance-linear, and subulate, pubescent and 

 ciliate ; involucre smoothish, the leaflets narrow, sublinear, rather obtuse ; floret* 

 nfihe ray inconspicuous. Akenes scabrous-pubescent; pappus scabrous, ofteo 

 flexuose, white. 



I/ab. Hilly woodlands ; N. Valley Hill : frequent. Fl. August-Sept. /y. Octo. 

 Obs. Collected by D. Townsbnd, Esq* in 1833. 



2. S. gigaktba, Ait. Stem smooth ; leaves lanceolate, serrate, triph- 

 nerved, scabrous on the upper surface, margin, and nerves beneath ; 

 racemes paniculate ; branches and pedicels roughish-pubescent : rays 

 short. Beck, Bot. p. 189. * 



Also ? S. serotina. Ait. mild. Pursh, Beck, &c. 

 Gioaxtic Solidago. 



Stem 4 to 6 or 7 feet high, striate, smooth, often purplish. Leaves 2 to 4 inches 

 long, and 1 third to 3 fourths of an inch wide, acuminate, sessile, or subsessile 

 rcticulatcly veined, scabroMS above, and especially along the margin, also rough- 

 ish-pubescent on the nerves beneath (sometimes nearly smooth beneath). Heads 

 of flowers in secund paniculate racemes; branches and pedicels roughish-pubes- 

 cent; bracts lanceolate, scabrous-ciliate; involucre smoothish, the leaflets lance- 

 oblong, rather acute, minutely ciliatc; rays rather larger than in the preceding 

 Akenes pubescent. 



Uab. Low grounds; borders of thickets : frequent. Fl. August-Sept. Fr. Octo. 

 Obs. la Muhlenberg^ Herbarium this is marked "serotina off. "-and is per 

 baps, not distinct from that species. It has considerable resemblance, also, to the 

 preceding: indeed, Prof. Hooker remarks, that "probably all the 'triple-nerved' 

 species might, without violence to nature, merge into one." 



3. S. ciliaris, Muhl. Stem smooth ; leaves elliptic-lanceolate, 

 acuminate, subtnplinerved, reticulately veined, smooth, scabrous-ciliau 

 on the margin ; racemes paniculate ; branches and pedicels smooth ■ 

 bracts cihate ; rays short. Beck, Bot. p. 189. 

 8. pyranudata. Florul. Cestr. p. 89. Not of Pursh, Ell. &c. 



