54 MIDDLESEX FLORA. 



ANTHEMIS, L. 



A. COTULA, L. (Maruta Cotula, DC., Man.) MAY-WEED. 



Very common. July-Sept. Nat. from Eu. 

 A. arvensis, L. CORN CHAMOMILE. 



Lowell (Dr. C. W. Swan). June-July. Adv. f rom Eu. 



ACHILLEA, Vaill. 



A. Millefolium, L. YARROW. 



Very common. Form with pink flowers not uncommon. July- 

 Sept. 



CHRYSANTHEMUM, Tourn., L. 



C. LEUCANTHEMUM, L. (Leucanthemum vulgare, Lam., Man.) OX- 

 EYE DAISY. WHITE-WEED. 

 Very common. June-July. Nat. from Eu. 



C. Parthenium, Pers. (Leucanthemum Parthenium, Godron, Man.) 

 FEVERFEW. 



Dracut, roadside (Dr. C. W. Swan) ; Maiden (F. S. C611ins) ; Wal- 

 tham List. Escaped from gardens. July-Aug. Int. from Eu. 



C. Balsamita, L., var. tanacetoides, Boiss. COSTMARY. MINT GERA- 

 NIUM. MINT. GOOSE-TONGUE. 



Persistent in old gardens and occasional by the roadside. Aug.- 

 Sept. Adv. from Asia. 



"A rayless or discoid form, known by its sweet-scented herbage, 

 barely serrate oblong leaves, and yellowish flowers ; when the rays 

 appear they are white." Syn. Fl. N. A. 



MATRICARIA, Tourn. 



M. discoidea, DC. 



N. Chelmsford, wool-waste (Rev. W. P. Alcott ; specimen in herb, 

 of) . Adv. from Cal. 



T. VULGARE, L. TANSY. 



Common by the roadside; including var. CRISPUM of the Man., 

 which is not uncommon. July-Aug. Nat. from Eu. 



ARTEMISIA, Tourn., L. 



A. VULGARIS, L. MUGWORT. 



Lowell and Carlisle (Dr. C. W. Swan) ; Maiden and Somerville 

 (F. S. Collins) ; Marlboro (Mrs. A. M. Staples). Aug.-Sept. Nat. 

 from Eu. 



