SeS NINETEENTH REPORT. 



Geraniace-e- — Geranium Family. 

 Geranium maculatum L. Wild Cranesbill. 



PoLYGALACE^ — Milkwort Family. 

 Polygala sanguinea L. 



EuPHORBiACE^ — Spurge Family. 



Euphorbia Esula L. 



Euphorbia Cyparissias L. Cypress Spurge. 



Anacardiace^ — Cashew Family. 

 Rhus copollina L. Dwarf Sumach. 



Aquifoliace^ — Holly Family. 

 Ilex verticillaia (L.) Gray. Winterberry. 



Acerace^ — Maple Family. 

 Acer Negundo L. Box Elder. 



Balsaminace^e — Touch-me-not Family. 

 Impatiens biflora Walt. Spotted Touch-me-not. 



ViTACE^ — Vine Family. 

 Vitis cordifolia Michx. Frost Grape. 



Malvace^ — Mallow Family. 

 Malva rotundifolia L. Common Mallow. 



HypERiCACEiE— St. John's-wort Family. 



Ilijpericum perforatum L. Common St. John's-wort. 

 Hypericum canadense L. 



CisTACE^- — Rockrose Family. 

 Helianthemum canadense (L..'') Michx. Frostweed. 



ViOLACE^ — Violet Family. 



Viola latiuscula Greene. 



Viola papilionacea Pursli. 



I'iola fimbriatula Sm. 



Viola sagittata Ait. 



Viola blanda Willd. 



Viola scabriuscula Schwein. Smooth Yellow Violet. 



Viola conspersa Reichenb. 



