GENUS 22. 



THISTLE FAMILY. 



3 S 5 



10. Solidago macrcphylla Pursh. Large- 

 leaved Golden-rod. Fig. 4222. 



Solidago macrophylla Pursh, Fl. Am. Sept. 542. 1814. 

 Solidago thyrsoidea E. Meyer, PI. Lab. 63. 1830. 



Stem striate, glabrous or sparingly pubescent, 

 stout, 6'-4 high. Leaves thin, ovate, acuminate, 

 or the basal ones obtuse, sharply serrate, glabrous 

 or sparingly pubescent beneath, 3 '-5' long, i'-2i' 

 wide, abruptly contracted into margined petioles, 

 or the uppermost lanceolate, entire, sessile; heads 

 4"-6" high, in a terminal compact or loose thyrsus 

 and usually also in axillary clusters; bracts of 

 the involucre linear, acute ; rays 8-10, linear-ob- 

 long, conspicuous; achenes glabrous or nearly so. 



In rocky woods, Catskill Mountains, N. Y., and 

 Greylock Mt., Mass., to Newfoundland, Labrador, 

 Hudson Bay and Lake Superior. Ascends to 4000 ft. 

 in the Adirondacks. July-Sept. 



Solidago calcicola Fernald, a related plant found 

 in Maine and Quebec, has smaller heads, 3 "-4" high, 

 and pubescent achenes. 



ii. Solidago Lindheimeriana Scheele. 

 Lindheimer's Golden-rod. Fig. 4223. 



Solidago Lindheimeriana Scheele, Linnaea 21 : 599. 

 1848. 



Scabrous, simple, ii-3 high, leafy, rather 

 stout and rigid. Leaves oblong, oblong-lanceo- 

 late or oval, acute or acutish at the apex, nar- 

 rowed or rounded at the base, all entire, thick- 

 ish, rough on both surfaces, sessile or the lowest 

 petioled ; heads about 3" high, in a terminal, 

 often short thyrsus; bracts of the involucre 

 acute or the outer obtuse, puberulent; achenes 

 nearly glabrous. 



Southern Kansas to Texas and northern Mexico. 

 Aug.-Nov. 



Solidago Bigelovii A. Gray, another southwestern 

 species, which is rougher than this, with oval or ob- 

 long leaves obtuse or obtusish at both ends, is re- 

 ported from Kansas, probably erroneously. 



12. Solidago Cutleri Fernald. Cutler's Al- 

 pine Golden-rod. Fig. 4224. 



Solidago Virgaurea alpina Bigel. Fl. Bost. Ed. 2, 307. 



1824. 

 Solidago Cutleri Fernald, Rhodora 10: 87. 1908. 



Glabrous, or somewhat pubescent; stems simple, 

 often tufted, 3'-i2 r high, ascending, or erect, angu- 

 lar. Basal leaves obovate, or broadly spatulate, ser- 

 rate with low sharp or blunt teeth, at least above the 

 middle, obtuse, or acute, 2'-4' long, narrowed into 

 petioles ; stem leaves few, oblanceolate, spatulate, 

 or oblong, sessile, or the lower petioled, mostly dis- 

 tant; inflorescence a short raceme or thyrsus, and 

 often with clusters of heads in the axils of the 

 leaves ; heads 3" -4" high, over 30-flowered ; bracts 

 of the involucre obtuse to acute ; achenes hirsute. 



Alpine summits of the mountains of Maine, New 

 Hampshire, Vermont and northern New York, mostly 

 above timber line. Referred, in our first edition, to the 

 European 5". alpestris Waldst. & Kit., which it resembles. 

 Aug.-Sept. 



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