31 

 Order 41.— UMBELLIFERJE. 52. 



1. Hydrocotyle, Tourn. 



Americana, L. (Marsh Pennywort.) 



Shaded wet places. Frequent. July, 

 ranunculoides, L. 



Ditches; St. George's. Frequent. July, 

 umbellata, L. 



Swamps; Thompson's, Ogletown. Frequent. June. 

 "1. Sanicula, Tourn. 



Canadensis, L. (Sanicle.) 



Woods and copses. Frequent. June. 

 Marilandica, L. 



Rich woods. Common. July. 

 J. Eryngium, Tourn. 



Virginianum, Lam. (Button Snakeroot.) 



Swamps; Thompson's. Not common. July. 



4. Daucus, Tourn. 



Carota, L. (Carrot.) 



So common in fields as to be a great nuisance. July 



5. Heracleum, L. 



lanatum, Michx. (Cow Parsnip.) 

 Rich low grounds. Frequent. May. 

 Pastinaca, Tourn. 



sativa, L. (Parsnip.) 



Waste places, along fencerows. Common. June. 



7. Archemora, DC. 



rigida, DC. (Cowbane.) 



Swampy places. Common. Aug. 



8. Archaxgelica, Hoffm. 



hirsuta, T. & G. 



Borders of woods, &c. Frequent. July, 

 atropurpiirea, Hoffm. 



Low grounds along streams. Frequent. May. 



9. Thaspium, Nutt. 



barbinode, Nutt. (Meadow Parsnip.) 



Sandy meadows, kc. ; Brandy wine. Frequent. June. 



a ure urn, Nutt. 



Borders of woods; Brandywine. Not common. 

 May. 



