COMPOSITAE. 



VOL. III. 



37. Solidago serotina Ait. Late Golden- 

 rod. Fig. 4249. 



Solidago serotina Ait. Hort. Kew. 3: 211. 1789. 



S. gigantea Ait. Hort. Kew. 3: 211. 1789. 



Solidago Pitcheri Nutt. Journ. Acad. Phil. 7: 101. 



1834- 

 5. serotina gigantea A. Gray, Proc. Am. Acad. 17: 



1 80. 1882. 



Stem stout, 3-8 high, glabrous, sometimes 

 glaucous. Leaves lanceolate or oblong-lanceo- 

 late, thin, triple-nerved, sharply serrate, or nearly 

 entire, sessile, or the lowest petioled, glabrous on 

 both sides or pubescent beneath, more or less 

 rough-margined, 3'-6' long, 2"-i5" wide, acumi- 

 nate at the apex, narrowed at the base; heads 

 2i"-3" high, crowded on the spreading or re- 

 curving branches of the usually large and often 

 leafy panicle, which are sometimes puberulent; 

 bracts of the involucre oblong, thin, obtuse; rays 

 7-15, rather large; achenes finely pubescent. 



In moist soil, New Brunswick to British Columbia 

 and Oregon, south to Georgia, Texas and Utah. As- 

 cends to 2300 ft. in Virginia. Aug.-Oct. 



38. Solidago glaberrima Martens. Mis- 

 souri Golden-rod. Fig. 4250. 



Solidago glaberrima Martens, Bull. Acad. Brux. 8 : 68. 



1841. 

 S. moritura Steele, Contr. Nat. Herb. 13: 370. 1911. 



Stem glabrous, rather slender, 3-5 high. 

 Leaves firm or thick, those of the stem linear- 

 lanceolate to linear, sessile, acuminate at the apex, 

 narrowed at the base, 2' -4,' long, rough-margined, 

 triple-nerved, entire, or sparingly serrate with 

 low sharp teeth, the basal and lowest ones mostly 

 larger, spatulate, petioled; heads 2" -3" high, se- 

 cund on the spreading or recurving branches of 

 the short and broad, usually naked panicle ; bracts 

 of the involucre oblong, greenish-tipped, obtuse, 

 or the inner acute, thick; rays 6-13, short ; achenes 

 nearly glabrous. 



On dry prairies, Manitoba and Minnesota to Ten- 

 nessee, Alberta, Washington, Missouri and Texas. 

 Autumn. Referred, in our first edition, to S. mis- 

 souriensis Nutt. of the far west. 



39. Solidago Shortii T. & G. Short's 

 Golden-rod. Fig. 4251. 



Solidago Shortii T. & G. Fl. N. A. 2 : 222. 1841. 



Stem slender, glabrous below, minutely pu- 

 bescent above, 2-4 high. Leaves firm, ob- 

 long-lanceolate, sessile (the lowest petioled?), 

 triple-nerved, acute or acuminate at the apex, 

 glabrous on both sides, the larger 2' -4' long, 

 5"-6" wide, sharply serrate with rather small 

 and distant teeth, the upper gradually smaller, 

 sparingly serrate, or entire ; heads about 3" 

 high, secund on the usually recurved branches 

 of the commonly large puberulent panicle; in- 

 volucre narrowly campanulate, its bracts linear- 

 oblong, obtuse ; rays 5-7, rather small ; achenes 

 silky-pubescent. 



On rocks at the Falls of the Ohio river. Er- 

 roneously recorded from northwestern Arkansas. 

 July-Aug. 



