FLORA OF WORCESTER COUNTY. 47 



CARPINUS, L. Hornbeam. 



Caroliniana, Walter. Common. 



QUERCUS, L. Oak. 



alba, L. White Oak. Common. 



macrocarpa, Michx. Bur Oak. Worcester. 



bicolor, Willd. Swamp White Oak. Not rare. 



Prinus, L. Chestnut-Oak. Common. 



" " var. monticola, Michx. " 



prinoides, Willd. Not rare. 



rubra, L. Red Oak. Common. 



coccinea, Wang. Scarlet Oak. " 



" " var. tinctoria, Gray. Black Oak. " 



ilicifolia, Wang. Scrub-Oak. " 



CASTANEA, Tourn. Chestnut. 



sativa, Mill., var. Americana, Michx. Common. 



FAGUS, Tourn. Beech. 



ferruginea, Ait. Common. 



SALICACE^E. 

 SALIX, Tourn. Willow. 



nigra, Marsh. Black Willow. Not rare. 



lucida, Muhl. Shining Willow. Common. 



*fragilis, L. Crack Willow. Worcester. Prof. Eaton. 



*alba, L. White Willow. Not common. 



* " . " var. vitellina, Koch. Southbridge. 



L. E. Ammidown. 



rostrata, Richardson. Princeton. W. W. B. &J. F. C. 



discolor, Muhl. Glaucous Willow. Common. 



humilis, Marsh. Prairie Willow. Not " 



tristis, Ait. Dwarf Gray Willow. Uxbridge. 



Thos. Morong. 



