1924] ^. Reports on Flora of Boston District, —XLVI 111 
KRIGIA. 
[K. amplexicaulis Nutt. Reported from wet meadow, Framingham, 
in Ruopona i. 97, 1899, but no specimen is available.] 
K. virginica (L.) Willd. Dry fields and open woods, common. 
LACTUCA. 
L. canadensis L. See RHopora xxii. 10-11, 1920, for revision of 
this species and its varieties and forms which follow. Moist soil, 
common. 
L. canadensis L., var. integrifolia (Bigelow) Gray. Occasional. 
L. canadensis L., var. integrifolia (Bigelow) Gray, forma angust- 
ata Wiegand. Sandy sea-beach, Pemberton (Hull) (B. L. Robinson, 
Aug. 27, 1897). Specimen in herb. Gray. 
L. canadensis L., var. latifolia O. Kuntze. Occasional north and 
west of Boston. 
L. canadensis L., var. latifolia O. Kuntze, forma exauriculata 
Wiegand. Rare; Wenham (type station), Revere, Winchester, Dor- 
chester. 
L. canadensis L., var. obovata Wiegand. Occasional, but few re- 
cords inland (type from Wellesley). 
L. canadensis L., var. obovata Wiegand, forma stenopoda Wie- 
gand. Salisbury (A. A. Eaton, Aug. 20, 1899). Specimen in herb. 
N. E. Botanical Club. 
L. canadensis L., forma angustipes Wiegand. Beaver Brook 
Reservation (N. T. Kidder, Aug. 9, 1919); Needham (T. O. Fuller, 
Aug. 14, 1893). 
L. hirsuta Muhl. Dry fields and woods, rare. 
L. Morssii Robinson. W. Medford (C. H. Morss, Oct. 4, 1902); 
Green Harbor, Marshfield, reclaimed salt-marsh (C. H. Morss, Aug. 
14, 1898, Aug. 22, 1899); gravelly soil, W. Roxbury, one plant (N. T. 
Kidder, Sept. 25, 1919). 
L. Scartota L. Waste land, Lowell (C. H. Knowlton, Sept. 12, 
1902). Specimen in herb. C. H. Knowlton. 
L. SCcARIOLA L., var. INTEGRATA Gren. & Godr. Waste places, 
occasional; especially abundant around Boston and Cambridge. 
L. spicata (Lam.) Hitche. Low ground, frequent throughout. 
C. H. KNow Ton Committee on 
WALTER DEANE Local Flora. 
