1923] Flora of the Boston District, XXXIX 37 
to be differences in details of vegetative structure and in the size of 
carpospores and tetraspores between the two sets of plants, but ex- 
amination of a large series of specimens is required to make this 
certain. This question must remain to be settled in the future. 
UNIVERSITY OF CALIFORNIA. 
REPORTS ON THE FLORA OF THE BOSTON 
DISTRICT,—XXXIX. 
LABIATAE. 
AGASTACHE. 
A. scrophulariaefolia (Willd.) Ktze. Rich woods, Oak Island, 
Revere (Wm. Boott, Aug. 16, 1861; other collectors down to 1908). 
A rare plant of rich woods, occasional in Berkshire county and Con- 
necticut; this station probably now extinct. 
AJUGA. 
A. REPTANS L. Escaped on bank, Cambridge (W. Deane, June 6, 
1910); spontaneous under shrubs in garden, S. Hanover (Mrs. E. A. 
Josselyn, June 17, 1904); reported from moist meadow in N, Easton 
by C. Blomberg in RHODORA, iv. 14, 1903. 
BALLOTA. 
B. nigra L. Dump, Cambridge (W. Deane, Oct. 10, 1885); Hull 
(C. E. Perkins, July 15, 1881); also Chelsea and E. Boston, no data. 
[Blephilia ciliata Raf. is reported by Dr. Thomas Morong from 
Ashland, in Dame & Collins, Fl. Middlesex Co., 72, 1888. As this 
is the only record for this plant in Massachusetts from east of the 
Connecticut Valley, it is probably a casual introduction, and not a 
native plant at Ashland.] 
COLLINSONIA. 
C. canadensis L. Rich woods, rare; Oak Island, Revere, Ipswich, 
Georgetown, Haverhill, Dracut. 
DRACOCEPHALUM. 
D. PARVIFLORUM Nutt. Waste places, rare; W. Cambridge (4. S. 
Pease, July 4, 1908); Needham (T. O. Fuller, July 10, 1899); S. Han- 
over (Mrs. E. A. Josselyn, June 16, 1899). 
