— 22 — 



450. patula, Muhl. 



451. arguta, Ait. 



452. Muhlenbergii, Torr. and Gray. 



453. altissima, L. 



454. ulmifolia, Muhl. 



455. odora, Ait. Common. 



var. inodora, Cray Franklinville, L. I.. H. W. Young. 



450. nemoralis, Ait. 



457. Canadensis, L. 



458. serotina, Ait. 



459. gigantea, Ait. 



460. lanceolata, L. 



461. tenuifolia, Pursh. 



192. CHRYSOPSIS, Xutt. Vide sp. 46;',. 



462. falcata, Ell. Common on Long Island. 



463. Mariana, Nutt. Common on Long Island. The genus is not reported 



elsewhere. 



193. INULA, L. 



464. Helenium, L. 



194. PLUCHEA, ('ass. 



465. camphorata, DC Salt marshes, etc. 



195. BACCHARIS, L. 



466. halimifolia, L Salt marshes near South End, 



196. IVA, L 



467. frutescens, L. Abundant in the salt marshes. 



197. AMBROSIA, Tourn. 



U.S. trifida, L. Not rare. 

 469. artemisiaefolia, L 



198. XANTHIUM, Tourn. 

 170. strumarium, L. Common. 



var. echinatum, Cray. New Haven. Patton. 



199. RUDBECKIA, 1, 



471. laciniata, L. 



472. hirta, L. 



200. HELIANTHUS, I, 



47:',. asm rs, b. Escaped. 



474. angustifolius, L. RiveT Head, L. I. 



175. giganteus, L. 



476. strumosus, L. 



477. divaricatus, L. 



478. decapetalus, L. 



479. TUBBROSDH, L. 



