245 



p. paucifolia Willd. — Orient, the station destroyed by cultivation; determined at 



New York Botanical Garden. 

 P. -polygama Walt. — Dry open woods. 

 P. verticillata L. — Dry hilly soil. 

 P. viridescens L. — Moist woods. 



EUPHORBIACEAE 



Acalypha gracilens A. Gray. 

 A. virginica L. 



Chamaesyce maculata (L.) Small — Cultivated fields. {Euphorbia maculata L.) 

 C polygonifolia (L.) Small. 



Tithymalus Cyparissias (L.) Hill — Roadsides. {Euphorbia Cyparissias L.) 

 T. Lathyrus (L.) Hill — Rare at Orient in waste places; determined at Bureau of 

 Plant Industry. 



Callitrichaceae 



Callitriche heterophylla Pursh — Edge of a pond in woods at Greenport; determined 



at Bureau of Plant Industry. 

 C. palustris L. — Rare at Orient in a pond, 1908; determined at New York Botanical 



Garden. Not found since and perhaps the many years of drought have killed 



the roots. 



Anacardiaceae 

 Rhus copallina L. 



R. glabra L. 



Toxicodendron radicans (L.) Ktze. — Plants may be either low or high climbing; 



the leaves sometimes toothed. {Rhus radicans L.) 

 T. vernix (L.) Ktze. — Rare. 



Ilicaceae 



Ilex bronxensis Britton — Rare at Orient; specimens in N. Y. State Herbarium. 

 /. glabra (L.) A. Gray — Rare at East Marion. 

 /. verticillata (L.) A. Gray. 



Celastraceae 

 Celastrus scandens L. 



ACERACEAE 



Acer carolinianum Walt. — Rare on Gardiner's Island. {Acer rubrum tridens Wood.) 



A . Negundo L. — Escaped at Orient. 



A. rubrum L. 



A. saccharinum L. 



Rhamnaceae 



Ceanothus americantu L. — Rare at Southold. 

 Rhamnus cathartica L. — Orient. 



VlTACEAE 



Parthenocissus quinquefolia (L.) Planch. 



Vitis aestivalis Mx. 



V. bicolor LeConte. 



V. Labrusca L. — Moist thickets. 



TiLIACEAE 



Tilia americana L. 



Malvaceae 

 Abutilon Abiitilon (L.) Rusby — Orient in cultivated fields. 

 Hibiscus Moscheutos L. 



