62 



A. trifida L. var. integrifoha (Muhl.) T. & G. Springfield, L. An- 

 drews. 



artemisiifoha L. Roman Wormwood. Hog-weed. Bitter-weed. 

 Xanthium [Tourn.] L. * Cocklebur. Clotbur. 



SPINOSUM L. Plainfield, Porter. 



STRUMARIUM L. See Britten & Brown's III. Flora of N. A., 

 Vol. Ill, p. 298. 



ECHINATUM Murr. Springfield, L. Andrews. 

 -Heliopsis Pers. Ox-eye. 



scabra Dunal. Springfield, L. Andrews. 

 Rudbeckia L. Cone-flower. 



triloba L. Springfield, L. Andrews. 



HiRTA L. Yellow Daisy. Black-eyed Susan. Nigger-head. 



laciniata L. 

 Helianthiis L. Sunflower. 



annutis L. Common Sunflower. Frequently spontaneous. 



scaberrimus Ell. Springfield, L. Andrews. 



giganteus L. 



divaricatus L. 



strumosus L. 



decapetalus L. 



TUBEKGSUS L. Jerusalem Artichoke. Northampton meadows ; 

 Northfield meadows. 

 ■Coreopsis L. Tickseed. 



Ti.NCTOKiA Nutt. Roadsides. 

 Bidens L. Bur Marigold. 



frondosa L. Common Beggar-ticks. Stick-tight. 



connata Muhl. 



cernua L. Stick-tight. 



)aevis (L.) BSP. 



Becfcii Torr. Water Marigold. Agawam river, Mrs. M. L. Owen. 

 ■GaVmsoga R. & P. 



parviflora Cav. Springfield, Dr. W. H. Chapin, 1888. Since 

 found elsewhere occasionally. 

 Helenium L. Sneezeweed. 



nudiflorum Nutt. S. C. Brooks, 1910. 



autumnale L. Springfield, L. Andrews. 

 Achillea (Vaill.) L. Yarrow. 



Millefolium L. Common Yarrow. Milfoil. 

 Anthemis (Mich.) L. Chamomile. 



CoTULA L. May^weed. Dog Fennel. 



ARVENSis L. Corn Chamomile. Amherst, in grain fields. 

 Chrysanthemum [Tourn.] L. Ox-eye Daisy. 



Leucanthemum L. Ox-eye or White Daisy. Marguerite. 

 White-weed. One of our worst weeds in mowings. 



