43 



HYPERICACEAE 

 Hypericum [Tourn.] L. St. John's-wort. 

 Ascyron L. Great St. John's-wort. 

 PERFORATUM L. Common St. John's-wort. 

 punctatum Lam. 

 ellipticum Hook. 

 mutilum L. 



majus (Gray) Britton. Conway, H. G. Jesup ; Springfield. 

 canadense L. 



gentianoides (L.) BSP. Orange Grass. Pineweed. 

 virginicum L. Marsh St. John's-wort. 



CISTACEAE 

 Helianthemum [Toum.J Mill. Rockrose. 

 canadense (L.?) Michx. Frostweed. 

 Lechea (Kalm) L. Pinweed. 

 villosa Ell. 

 minor L. 



intermedia Leggett. Springfield, L. Andrews. 

 maritima Leggett. var. interior Robinson. Training School' 



grounds, Springfield, L. Andrews. 

 tenuifolia Michx. Southwigk, S. Stebbins ; Amherst, E. F.- 

 Bishop. 



VIOLACEAE 

 This genus, Viola, has recently been extensively revised and many 

 new species have been added. The tendency to hybridization renders- 

 the determination of species difiicult. 

 Viola [Tourn.] L. Violet. Heart's-ease. 



pedata L. Bird-foot Violet. 



pedata L. var. lineariloba DC. Springfield, L. Andrews. 



cucullata Ait. 



latiusctila Greene. 



papilionacea Pursh. 



palmata L. 



triloba Schwein. Springfield, L. Andrews. 



sororia Willd. 



septentrionalis Greene. 



fJTnbriatula Sm. 



sagittata Ait. 



Selhirldi Pursh. 



lanceolata L. Lance-leaved Violet. 



primulifolia L. Primrose-leaved Violet. 



