86 FLORA OF WASHINGTON AND VICINITY. 



tEupatorium teucrifolium, Willd. 



September. 



tEupatorium rotundifolium, L. 



August and September. 



tEupatorium pubescens, Muhl. 



Forms occur uniting this species and the preceding. September. 



+ Eupatorium sessilifolium, L. Upland Boneset. 

 July to September. 



;Tiupatorium sessilifolium x pubescens, Gray. 



"Between sessilifolium and puiescens" (Professor Asa Gray). Above Pierce's MiU. 

 September 30, 1877. 



.tEupatorium perfoliatum, L. Thorough wort. Boneset. 



A specimen with all the leaves in whorls of three was found by Prof. M. H. Doo- 

 little, October 26, 1879, near the Receiving Reservoir. August to October. 



tEupatorium ageratoides, L. White Snakeuoot. 

 August, September. 



tEupatorium aromaticum, L. 



Septeuiber. 



tCouoclinium ccelestinum, DC. ^Eupatorium, Benth. & Hook., Gen. PI.] Mist- 

 Flower. 

 August to October. 



tMikania scandens, L. Climbing Hemp-weed. Climbing Boneset. 

 Marshes; Four Mile Run; Eastern Branch, »&c. September. 



tKuhnia eupatorioides, L. False Boneset. 



Woodley Park ; Terra Cotta. Root very large and deep. September. 



Liatris scariosa, Willd. Button Snakeroot. Blue Blazing Star. 



Near Fort Bennett, Va. Only a single specimen found, October 24, 1873, in an 

 advanced state. 



Iiiatris graminifolia, Willd. Gay Feather. 

 September. 



Ijiatris graminifolia, Willd., var. dubia, Gray. 



Distinction close if it really exists. September. 



t Chrysopsis Mariana, Nutt. Golden Aster. Maryland Golden Star. 

 August, September. 



tSolidago bicolor, L. Golden Rod. 

 September, October. 



Solidago bicolor, L., var. concolor, Gray. 

 September, October. 



t Solidago latifolia, L. 



August to October. 



i Solidago caesia, L. 



September to October. 



