26 FLORA OF WORCESTER COUNTY. 



RUBIACEyE. 



HOUSTONIA, L. Houstonia. 



caerulea, L. Bluets. Common. 



CEPHALANTHUS, L. Button-bush. 



occidentalis, L. Button-bush. Common in swamps. 



MITCHELLA, L. Partridge-berry. 



repens, L. Partridge-berry. Common. 



GALIUM, L. Bedstraw. 



*Mollugo, L. Princeton. W. W. B. & J. F. C. 



circaezans, Michx. Wild Liquorice. Rich woods. 



lanceolatum, Torr. Wild Liquorice. Dry woods. 



Worcester. Miss Sargent. 



trifidum, L. Small Bedstraw. In we.t grounds. 



" var. pusillum, Gray. " " " 



asprellum, Michx. Rough Bedstraw. " " " 



triflorum, Michx. Sweet-scented Bedstraw. Rich woods. 



DIPSACE^E. 



DIPSACUS, Tourn. Teasel. 



*sylvestris, Mill. Wild Teasel. Worcester. 



COMPOSITE. 



VERNONIA, Schreb. Iron-weed. 



Noveboracensis, Willd. In swampy meadows. 



MIKANIA, Willd. Climbing Hemp-weed. 



scandens, L. Tatnuck. Mr. Kinney. Rare. 



EUPATORIUM, Tourn. Thoroughwort. 



purpureum, L. Joe-Pye Weed. Common. 



rotundifolium, L., var. ovatum, Torr. Worcester. G. Coult. 



