CATALOGUE OF PLANTS. 5 



Lepidium, Tourn. Peppergrass. 



L. Virginicum, L. Roadsides ; common. 



L. CAMPESTRE, Br. Hanover, C. H. Dana; not common ; European. 



L. RUDERALE, L. Hanover, etc. ; along with L. Virginicum ; from Europe. 

 Kaphanus, Tourn. Wild Radish. 



R. Raphanistrum, L. (Jointed Charlock.) Hanover; not rare in grain 

 fields ; European. 



[Cultivated plants : — Various kinds of Brassica (Cabbage and Turnip), 

 Raphanus sativum (Garden Radish), Lepidium sativum (Garden Pep- 

 pergrass), Matthiola (Stock), Iberis (Candytuft), Alyssum maritimum 

 (Sweet Alyssum), etc.] 



Order 9. CISTACE^. Rock-Rose Family. 



Helianthemum, Tourn. Rock-Rose. 



H. Canadense, Michx. Frost-weed. Gravelly soil. 

 Lechea, Kalm. Pinweed. 



L. major, Michx. Dry and sterile fields ; common. 



L. minor, L. With the above and quite variable, including perhaps more 

 than one species. 



Order 10. VIOLACEJE. Violet Family. 



Viola, Tourn. Violet. 



V. palmata, L. (V. cucullata, var. palmata. Gray.) — (Palmately-leaved Vio- 

 let.) On drier ground than the variety, and less common, 

 var. cucullata. Gray. (V. cucullata, Ait.) — (Common Blue Violet.) Very 

 common everywhere. 



V. sagittata. Ait. Hanover, etc. Roadsides and upland pastures ; not 

 abundant. 



V. Selkirkii, Pursh. (Selkirk Violet.) Shady hillsides ; not very common. 



V. blanda, Willd. (Sweet White Violet.) Moist places; common, and very 

 variable. 



var. palustriformis, Gray. "The larger form; in shady, mossy ground." 



var. renifolia. Gray. (Kidney-leaved Violet.) Named from specimens 



collected in 1870 by F. A. Sherman ; common in rich, rocky woods. 



V. primulaefolia, L. (Primrose-leaved Violet.) With the next. New Lon- 

 don, IV. F. Carter' ; not common. 



V. lanceolata, L. (Lance-leaved Violet.) Near Dorchester Line Pond, 

 A. C. French ; New London, in wet pastures. Carter ; rare. 



V. rotundifolia, Michx. (Round-leaved Violet.) Moist woods. The earli 

 est species ; common. 



V. pubescens, Ait. (Downy Vellow Violet.) Woods ; common and vari- 

 able. 



V. Canadensis, L. (Canada Violet.) Rich woods; common. 



V. rostrata, Pursh. (Long-spurred Violet.) With the above. 



V. canina, L. var. Muhlenbergii, Gray. (Dog Violet.) Everywhere com- 

 mon and rather variable. 



