1924] Flora of the Boston District, —X LV 83 
CACALIA. 
C. ATRIPLICIFOLIA L. Concord turnpike [Cambridge to Concord] 
(C. E. Faxon, Aug. 31, 1887). Specimen in herb. Gray. 
C. sUAVEOLENS L. Newton (W. G. Farlow, Sept. 25, 1895). Speci- 
men in herb. Gray. 
CENTAUREA. 
C. ADULTERINA Moretti. White-flowered form collected at Med- 
ford (Mrs. P. D. Richards, no date). Specimen in herb. N. E. Botani- 
cal Club. Native of southern Europe. 
C. Cyanus L. Occasionally escaped from gardens. 
C. nrFFUSA Lam. Dry hillside, Norfolk (Miss R. L. Mann, July 7, 
1902; J. R. Churchill, Aug. 28, 1909); open roadside in hard gravel, 
Plainville (Zt. A. Ware, Aug. 7, 1909). Native of southeastern Europe 
and Asia Minor. 
C.JAcEA L. Lexington (Mrs. P. D. Richards, no date); Cliftondale, 
Saugus (F. S. Collins, Sept. 30, 1890); field, S. Hanover (E. A. 
Josselyn, June 28, 1905). 
C. Jacea L., var. LACERA Koch. Waste places, rare; Bedford 
(C. W. Jenks, Oct. 7, 1906); Sherborn (Miss M. L. Loomis, Aug. 15, 
1911); Marshfield (C. H. Morss, July, 1878). 
C. MACULOSA Lam. Woolwaste and also in fields, Westford (Miss 
E. F. Fletcher, June 12, 1903 to July 19, 1914; C. W. Swan, Sept. 15, 
1884); field recently cultivated, Dover (F. W. Hunnewell, Sept. 28, 
1919). 
C. MELITENSIS L. S. Boston (C. E. Perkins, Sept. 27, 1880). Speci- 
men in herb. N. E. Botanical Club. 
C. NIGRA L. Fields and waste places; occasional, often abundant. 
C. NIGRA L., var. RADIATA DC. Field, Andover (A. S. Pease, June, 
1900); W. Medford (Mrs. P. D. Richards, August, 1890). 
C. sorsrITIALIS L. Waste ground, Lynn (L. A. Wentworth, August, 
1902). Specimen in herb. Gray. 
C. VOCHINENSIS Bernh. Moist soil near river, Amesbury (C. H. 
Know sai October, 1904); grassland, Ma (Cora H. Clarke, 
Sept. 22, 1911). 
CHAENACTIS. 
C. GLABRIUSCULA DC. Woolwaste, N. Chelmsford (W. P. Alcott, 
1878). Specimens in herb. Peabody Acad. Sci. and N. E. Botanical 
Club. Native in California from Sacramento southward. 
