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. from 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. Farthenhim, Pers. (Leucanthemum Parthenium, Godron, Man.) 

 Feverfew. 



Dracut, roadside (Dr. C. W, Swan) ; Maiden (F. S. Collins) ; 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. discoiclea, DC. 

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

 of). Adv. from Cal. 



Tanacetum, Tourn. 



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. 



