114 Tennessee Floka. 



E. obtusata Pursh. Frequent in glades around Nashville. 

 March-June. 



E.' commutata Engelm. Cedar barrens of M. Tenn. April. 



E. mercurialina Michx. Stoner's Creek, Wilson County. 

 Tunnel Hill, Sumner County. Lookout Mt. May- July. 



CALLITRICHACE^ Lindl. 

 CALLITRICHE L. 



Callitriche Austini Engelm. Water starwort. On mud 

 banks along streams. Nashville. July. 



C. heterophylla Pursh. Ponds near Nashville. July-Sep- 

 tember. 



BUXACE^ Dumirt. 



PACHYSANDRA Michx. 



Pachysandra procumbens Michx. Dr. Hampton's farm, Da- 

 vidson County. White Bluff, Dickson County. Beersheba 

 Springs, Grundy County. Col. Wilkins. April, May. 



ANACARDIACE^ Lindl. 

 RHUS L. 



Rhus copallina L. Darf sumac. • Poor, siliceous soils. O. 

 S. June-August. 



R. hirta (L.) Ludw. R. tyhina L. Staghorn sumac. Hill- 

 sides. O. S. June. , 



R. glabra L. Scarlet sumac. Old fields. O. S. June- 

 xA.ugust. M. 



R. aromatiea Ait. R. Canadensis Marsh. Limestone re- 

 gions of M. Tenn. March, April. M. 



R. trilobate Nutt. Rh. aromatiea var. trilobata Gray. Oc- 

 curs over the same range. M. 



R. Vernix L. R. venenata DC. Poison sumac. Poison 

 ash. Boggy lands in the Cumberland Mts. Sewanee. June. 

 M. 



R. radicans L. R. Toxicodendron Michx. Poison oak. E. 

 Tenn. May, June. M. 



R. Toxicodendron L. With crenately-lobed, very-pubescent 

 leaves. Nashville. M. 



COTINUS Adans. 



Cotinus cotiHoides (Nutt.) Britton. 'R. cotinoides Nutt. 

 Southern border of the State. Limestone County, Ala. Dr. 

 Charles Mohr. April, May. 



