PLANTS OF MANHATTAN AND BLUE RAPIDS 119 



Nothocalais cuspidata (Pursh.) Greene. Prairie Dandelion. 



Prairies. Frequent. Apr. 15 (16). This common name is 

 here proposed. 



Hieracium longipilum Tarr. Hawkweed. 



Prairies and meadows. Occasional. July 25 (25). 

 Nabalus asper (Michx.) T. & G. White Lettuce. 



Prairies and roadsides. Frequent. Aug. 25. 



Ambrosiaceae. Ragweed Family. 

 Iva ciliata Willd. Rough Marsh Elder. 



Manhattan, in low ground. Aug. 25. 

 Iva xantkiijolia (Fresen.) Nutt. False Ragweed. Marsh 

 Elder. 



Roadsides (foot of Bluemont). Aug 25. 

 Ambrosia trifida h- Great Ragweed. Kinghead. 



Roadsides and low ground. Common. Aug. 5 (6). 

 Ambrosia artemisiaefolia L. Ragweed. 



Fields and roadsides. Common. Aug. 5. 

 Ambrosia psilostachya DC. Perennial Ragweed. 



Hillsides and prairies. Common. Aug. 5. 

 Xanthium commune Britton. Cockle Bur. 



Fields and river banks. Common. Aug. 20. X. canadensc 

 of Hitchcocks's list. 



Compositae. Thistle Family 

 1 crnonia Baldwinii Torr. Ironweed. 



Meadows and roadsides. Common. July 15 (17). 

 1 'crnonia fasciculata Michx. 



Manhattan. Moist meadows and roadsides. 

 Eupatorium altissimum L. Tall Thoroughwort. 



Hillsides. Common. Aug. 10. 

 Eupatorium perfoliatum T. Boneset. 



Manhattan. Occasional in wet places. Aug. 10. 

 Eupatorium ageratoides L. f. White Snakeroot. 



Woods. Common. Aug 15. 

 Kithnia eupatorioides L. False Boneset. 



Prairies and roadsides. Common. Aug. 10(11). 

 Lacinaria punctata (Hook). Kuntze. 



Prairies and hillsides. Common. Aug. 5. 

 Lacinaria pyenostachya (Michx.) Kuntze. 



Manhattan. Occasional in meadows. July 30. 



