23 



BETULACEAE 



Corylus [Tourn.] L. Hazelnut. Filbert. 



americana Walt. Hazelnut. Prof. S. T. Maynard discovered 

 some years ago a purple-leaved hazelnut near 

 Mt. Toby, which has been propagated as a horti- 

 cultural variety. 

 rostrata Ait. Beaked Hazelnut. 

 Ostrya (Mich.) Scop. Leverwood. 



virginiana (Mill.) K. Koch. Hop Hornbeam. 

 CarT>mus [Tourn.] L. Ironwood. 



caroliniana Walter. Blue or Water Beech. 

 BetuJa [Tourn.] L. Birch. 



linta L. Sweet or Black Birch. 



lutea (Michx.) f. Yellow or Gray Birch. 



populifolia Marsh. White or Gray Birch. 



alba L. var. papyrifera (Marsh) Spach. Paper, Canoe or White 



Birch. 

 pumila L. Low or Swamp Birch. Amherst region. Eaton Man. 

 Ainus [Tourn.] Hill. Alder. 



crispa (Ait.) Pursh. Conway ; Deerfield, H. G. Jesup. 



mollis Fernald. Downy Green Alder. Buckland, M. L. Femaldin 



Rhodora, Vol. VI, p. 163. 

 incana (L.) Muench. Speckled or Hoary Alder. 

 rugosa (Du Roi) Spreng. Smooth Alder. 



FAGACEAE 



Fagus [Tourn.] L. Beech. 



grandifolia Ehrh. More common on our western border, where 

 it forms large forests. 

 Castanea [Tourn.] Hill. Chestnut. 



dentata (Marsh.^) Borkh. 

 Quercus [Tourn.] L. Oak. 



alba L. White Oak. 



bicolor Willd. Swamp White Oak. 



prinoides WiUd. Chinquapin Oak. 



Priniis L. Chestnut Oak. 



rubra L. Red Oak. 



palustris Muench. Pin Oak. More or less common in Conn. 

 Valley lowlands. 



coccinea Muench. Scarlet Oak. 



velutina Lam. Yellow-barked or Black Oak. 



ilicifolia Wang. Bear or Black Scrub Oak. 



