APPENDIX. 



51 



Ambrosia artemisiaefolia L. Ragweed. A weed in cultivated fields. 



Xanthium spinosum L. Spiny Clotbur. Opposite Trenton, (M. C); near Bristol; 



DuylcMown. 

 Xanthium glabratum (DC.) Britton. Snioothisli Clotbur. In waste places. 

 Xanthium Pennsylvanicum Wallr. Pennsylvania Clotbur. Sellersville. 

 Xanthium echinatum iMurr. Beach Clotbur. Near Sellersville. 



Family 5. Compositae Adans. 



Vernonia Noveboracensis (L.) Willd. New York Iron-weed. In meadows. 

 Vernonia glauca (L.) Britton. Broad-leaved Iron-weed. In the county, (P. Fl.). 



Eupatorium maculatum L. Spotted Joe-pye Weed. Tullytown; Bristol. 



Eupatorium maculatum amoenum (Pursh) Britton. Bristol. 



Eupatorium purpureum L. Joe-Pye Weed. In wet meadows. 



Eupatorium sessilifolium L. Upland Boneset. In middle and lower end. 



Eupatorium verbenaefolium Michx. Vervain Thoroughwort. Near Bristol; Spring- 

 held. (M. C). 



Eupatorium rotundifolium L. Round-leaved Thoroughwort. Near Bristol. 



Eupatorium perfoliatum L. Boneset. Thoroughwort. In wet meadows. 



Eupatorium ageratoides L. f. White Snake-rooto. In rich woods. 



Eupatorium coelestinum L. Mist-Flower. Lower end, I. C. Martindale. 



Willugbaeya scandens (L.) Kuntze. Climbing Hempweed. Frequent in swamps. 



Lacinaria spicata (L.) Kuntze. Button-Snakeroot. Ridge Valley. 



Chrysopsis Mariana (L.) Nutt. Maryland Golden Aster. Near Bristol; Glenlake. 



Solidago squarrosa Muhl. Ragged Goldenrod. Point Pleasant; Argus. 



Solidago caesia L. Blue-stemmed Goldenrod. In woods and thickets. 



Solidago flexicaulis L. Broad-leaved Goldenrod. In rich woods. 



Solidago bicolor L. White Goldenrod. In dry soil. 



Solidago hispida Muhl. Hairy Goldenrod. Near Sellersville; Buckingham, Dr. Ida 

 A. Keller; Doylestown, Prof. A. S. Martin. 



Solidago speciosa Nutt. Showy Goldenrod. Nockamixon, Albrecht Jahn. 



Solidago sempervirens L. Sea side Goldenrod. Penn Valley, Joseph Crawford. 



Solidago odora Ait. Sweet Goldenrod. Andalusia, I. C. Martindale. 



Solidago rugosa Mill. Tall Hairy Goldenrod. In dry soil. 



Solidago patula Muhl Spreading Goldenrod. Swamp in Springfield, (M. C.). 



Solidago ulmifolia Muhl. Elm-leaved Goldenrod. In woods and thickets. 



Solidago neglecta T. & G. Swamp Goldenrod. Bristol; Penn Valley. 



Solidago juncea Ait. Early Goldenrod. Near Sellersville, Doylestown, A. S. Martin. 



Solidago arguta Ait. Cut-leaved Goldenrod. In rich woods. 



Solidago serotina Ait. Late Goldenrod. Along fences in rich soil. 



Solidago serotina gigantea (Ait.) A. Gray. Giant Goldenrod. In moist soil. 



Solidago Canadensis L. Canada Goldenrod. In rich soil. 



Solidago Canadensis scabriuscula Porter. Rough Canada Goldenrod. Near Sellers- 

 ville. 



Solidago nemoralis Ait. Field Goldenrod. In dry .soil common. 



Solidago rigida L. Stiff Goldenrod. Near Pipersville; near Sellersville. 



Euthamia graminifolia (L.) Nutt. Bushy Goldenrod. *In moist soil. 



Euthamia Caroliniana (L.) Greene. Slender Fragrant Goldenrod. Tullytown. 



Sericocarpus linifolius (L.) B. S. P. Narrow-leaved White-topped Aster. Near 

 Bristol; Doylestown, Prof. A. S. Martin. 



Sericocarpus asteroides (L.) B. S. P. White-topped A.ster, In dry woods. 



