1912] Hubbard,— Panicums of Essex County, Massachusetts 37 
Ayer's Pond, Manchester, Sept. 28, 1911 and No. 193, hillside among 
ledges, West Manchester, Oct. 11, 1911. 
Specimens of these two numbers were sent to Mrs. Chase of the 
Bureau of Plant Industry, and determined by her. She writes mé in 
regard to No. 193 that "specimens from the northern limits of its 
range do not seem to develop the almost vine-like habit in the autumnal 
phase, characteristic of the species here and southward, though your 
193 is the first late autumnal specimen we have received from New 
England. We had not seen any from New England when the revision 
was published. Yours is the northernmost record as yet, and your 
specimen the nearest typical from New England." From a note on 
No. 129a Mrs. Chase would seem to lay specific distinction on the 
comparative conspicuousness of the epidermal cells of the under 
surface of the blades. 
PANICUM TENNESSEENSE Ashe. Hitchcock and Chase, l. c., cite 
this from Massachusetts, Framingham, Smith, nos. 741, 743. Rep- 
resented in the Gray Herbarium from Massachusetts, Framingham, 
E. C. Smith, (no number). There are Massachusetts specimens in 
the Herbarium of the New England Botanical Club from Magnolia, 
C. H. Clarke; Boston, 1882, Chas. E. Perkins. My specimens were 
verified by Mrs. Chase and are No. 153, rich wooded roadside, Wen- 
ham, Oct. 3, 1911; No. 170, rocky wooded hill, Manchester, Oct. 7, 
1911, and No. 174, low hollow — prostrate —, Manchester, Oct. 8, 1911. 
This species has been sparingly reported from Massachusetts and 
if the Clarke collection is typical, as it seems though unverified, has 
been previously found,— though apparently not recorded,— in Essex 
County. As this species is represented in the Gray Herbarium by 
specimens from New Brunswick, all the New England states and 
southward, it seems as though careful collecting would show it to be 
more widely distributed in Massachusetts than it is now known to be. 
Panicum LANGUIDUM Hitche. & Chase. Hitchcock and Chase, 
l. c., cite this species in Massachusetts from Ashburnham, Harris, 
1896. Not represented from Massachusetts in the Gray Herbarium. 
In the Herbarium of the New England Botanical Club, Massachusetts, 
is represented from Ashburnham, July 12, 1896, Sydney Harris 
(two sheets). My specimen is No. 205, gravelly roadside, West 
Gloucester, Oct. 13, 1911. 
A specimen of this number was sent to Mrs. Chase and the deter- 
mination is here. She writes, “ No. 205 is not typical, the blades being 
