— 20 — 



178. MITCHELLA, L. 



391. repens, L. 



179. OLDENLANDIA, Plunder, L. 



392. glomerata, Michx. Wading River, L. I. 



180. HOUSTONIA, L. 



393. purpurea, L., var. longifolia, Gray. Middle Island. L. I. The only spe- 



cies within our Long Island limits. 



394. caerulea, L. Common except on Long Island. 



Order 47. DIPSACE^E. 

 181. DIPSACUS, Tourn. 



395. sylvestris, Mill. Not rare. 



Order 48. COMPOSITE. 



182. VERNONIA, Schreb. 



396. Noveboracensis, Willd. 



183. LIATRIS, Schreb. 



397. scariosa, Willd. 



184. EUPATORIUM, Tourn. 



398. purpureum, L. 



399. hyssopifolium, L. East Haven and Madison, Hall; etc. : rare. 



400. album, L. Common on Long Island. 



401. teucrifolium, Willd. 



402. rotundifolium, L. On Long Island. 



403. sessilifolium, L. East Rock, Fair Haven, etc. 



404. perfoliatum, L. 



405. ageratoides, L. 



406. aromaticum, L. 



185. MIKANIA, Willd. 



407. scandens, L. 



186. TUSSILAGO, Tourn. 



408. Farfara, L. Meriden, Mt. Camel; River Head, L. I., J. H. Hall. The old 



station at Whitneyville is now under the lake. 



187. SERICOCARPUS, Nees. 



409. solidagineus, Nees. Hamden, Haryer ; Farmington, Sedywick; common 



on Long Island. 



410. conyzoides, Nees 



