96 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
G. FLiGiNOsr.M L. A weed well estal)lis]ie(i at the Main Life 
Saving Station. Listed l)y J. Macovii. JJ. St. John, no. 1,344 (H). 
FL, Fr. — August. 
RuDBECKiA HIRTA L. \ Weed Collected hy ./, Macoun (C. no. 
23,439) in 1899 but not observed by the subsequent botanical col- 
lectors. 
FL — August. 
Bidens frondosa L. Listed by J. Macoun. 
B. connataMuhl., var. petiolata (Nutt.) Farwell. See Fernald, 
Rhodora, x. 200 (1908). Infrequent, at the borders of fresh-water 
ponds. //. T. Giissow (E); //. .S7. John, no. 1,345 (H). 
FL, Fr. — September. 
[B. CERNITA L. of H. T. Giissoio is B. connata, var. petiolata.\ 
[Achillea Millefolium L. is listed by J. Macoxin; and H. T. 
Giissow. The material is probably identical with that collected by 
the author and cited under the following, A. lamdosa.] 
Achillea lanulosa Nutt.- Very abundant on the dry dunes and 
barrens. //. St. John, no. 1,346 (H). 
7*7. — August. 
Anthemis Cotula L. Thoroughly established at the Main Life 
Saving Station. Listed by J. Macoun; H. T. Gussow. H. St. 
John, no. 1,347 (H). 
FL, Fr. — August. 
Chrysanthemum Leucanthemum L., var. pinnatifidum Lecoq 
& Lamotte. A weed at the Main Life Saving Station. H. St. John, 
no. 1,348 (H). 
FL — August. 
Senecio Pseudo-Arnica Less. Infrequent in the gulches near the 
sea and at the top of the beaches. Listed by J. Macoun; and //. T. 
Gussow. H. St. John, no. 1,349 (H). 
FL, Fr.- — August. 
CiRSiuM arvense (L.) Scop. A weed thoroughly established near 
the Life Saving Stations and spreading. Listed by J. Macoun. H. 
T. Gussow (E); H. SL John, no. 1,350 (H). 
FL, Fr. — August and September. 
