238 



Betulaceae 

 Alnus incana (L.) Willd. — Greenport. 



A . rugosa (DuRoi) Spreng. — Rare at Orient. 

 Betula lenta L. — Greenport. 



B. populifoUa Marsh. 



Corylus americana Walt. — Rare at Orient. 

 C rostrata Ait. — Orient. 

 Ostrya virginiana (Mill.) Willd. 



Fagaceae 

 Castanea dentata (Marsh.) Borkh. 

 Fagus grandiflora Ehrh. — Greenport, East Marion and Southold; unknown at 



Orient. {Fagus americana Sweet.) 

 Quercus alba L. — More common at Greenport than at Orient. 

 Q. bicolor Willd. — Greenport. 

 Q. coccinea Wang. 



Q. Muhlenbergii Engelm. — Rare at Greenport. 

 Q. palustris DuRoi — Rare. 



Q. Prinus L. — More common at Greenport than at Oiient. 

 Q. rubra L. — Rare. 

 Q. stellata Wang. — Sandy soil. 



Q. velutina Lam. 



Ulmaceae 

 Celtis occidentalis L. 



MORACEAE 



Toxylon pomiferum Raf . — Escaped from cultivation. 



Cannabinaceae 

 Humulus Lupulus L. — Rare at Orient in open woods. 



Urticaceae 

 Boehmeria cylindrica (L.) Sw. 



Pilea pumila (L.) A. Gray. 



Santalaceae 



Comandra umbellata (L.) Nutt. — Light sandy soil. 



Aristolcchiaceae 

 Asarum canadense L. — Determined at New York Botanical Garden. 



Polygonaceae 

 Persicaria Hydropiper (L.) Opiz — Cultivated fields and about yards. (Polygonum 



Hydropiper L.) 

 P. hydropiperoides (Mx.) Small — About ponds and wet places. 

 P. lapathifolia (L.) S. F. Gray — Rare at Orient. 

 P. pennsylvanica (L.) Small. 

 P. Persicaria (L.) Small. 



P. punctata (Ell.) Small — Fields, waste places and about swamps. 

 Polygonella articiilata (L.) Meisn. — Orient. 

 Polygonum aviculare L. — Yards and roadsides; sometimes on sandy beaches far 



from dwellings. 



