342 



COMPOSITAE. 



[Vor.. III. 



Solidago jiincea ramosa Porter and Britton, Bull. Torn Club, 18: 368. 1891. 

 Much branched at the summit, the branches slender, erect, slightly curved, the heads in short 

 small racemes. Maine to Western New Jersey, West Virginia and Ohio. 



32. Solidago arguta Ait. Cut- 

 leaved Golden-rod. (Fig. 3702.) 



Solidago arguta Ait. Hort. Kew. 3: 213. 1789. 

 S. MuhlenbergiiT. & G. Fl. N. A. 2: 214. 1841. 



Stem simple, rather stout, glabrous, or 

 sparingly pubescent above, 2-4 high. 

 Leaves thin, pinnately veined, the lower 

 and basal ones broadly ovate or oval, short- 

 acuminate, 3 / -i6 / long, i'-S' wide, narrow- 

 ed into margined petioles, sharply and 

 coarsely serrate; upper leaves sessile, ovate 

 to oblong, acute or acuminate, more or less 

 serrate, smaller; heads 2 l / 2 /, -T ) y z ,/ high, 

 secund on the lateral racemose branches 

 of the terminal, often leafy panicle; rays 

 5-7, large; bracts of the involucre oblong, 

 obtuse; achenes glabrous or nearly so. 



In rich woods, Ontario and New England 

 to Ohio, south to Virginia. Ascends to 2700 

 ft. in the Adirondacks. July-Oet. 



33. Solidago rupestris Raf. Rock 

 Golden-Rod. (Fig. 3703.) 

 Solidago rupestris Raf. Ann. Nat. 14. 1820. 



Stem slender, glabrous, or minutely pubes- 

 cent above, 2-3 high. Leaves thin, triple- 

 nerved, linear-lanceolate, 2'-$' long, 3 // -5 // 

 wide, entire, or sparingly serrate with some- 

 what appressed teeth, acuminate at the apex, 

 narrowed at the base, sessile, or the lowest pet- 

 ioled, glabrous; heads small, i 1 /^" high, secund 

 on the short spreading branches of the small 

 panicle; rays 4-6, short; bracts of the involucre 

 thin, linear; achenes small, nearly glabrous. 



Rocky banks of streams, Pennsylvania to West 

 Virginia, Tennessee and Indiana. Aug.-Sept. 



34. Solidago serotina Ait. Late 

 Golden-rod. (Fig. 3704.) 



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

 5. gigantea Willd. Sp. PI. 3: 2056. 1804. Not Ait. 



_I789- 



Stem stout, 3-S high, glabrous, sometimes 

 glaucous. Leaves lanceolate or oblong- lanceo- 

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

 rarely nearly entire, sessile, or the lowest peti- 

 oled, glabrous on both sides but more or less 

 rough-margined, 3 / -6 / long, 2 // -i2 // wide, 

 acuminate at the apex, narrowed at the base; 

 heads 2^ // -3^ // high, crowded on the spread- 

 ing or recurving 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, Newfoundland to British Columbia, 

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



south to Georgia, Texas, Nevada and Oregon. 



