204 , Rhodora [OCTOBER 
For Vermont. Metzgeria furcata; Woodstock (D. L. Dutton). 
Cephalozia connivens; Brandon (D. L. Dutton). Cephaloziella 
elachista; Woodstock (Miss Lorenz). | Lophozia al pestris and Scapania 
dentata; Rochester (D. L. Dutton). | 
For Massachusetts. Metzgeria crassipilis; Hammond Pond (E. 
Faxon). 
For Rhode Island. Porella pinnata; Johnston (J. F. Collins). 
Cephalozia fluitans; Burrillville (J. F. Collins). The Rhode Island 
records for Ricciella fluitans and Preissia quadrata may also be marked 
with the sign “+”. 
For Connecticut. Metzgeria furcata; Woodbridge (A. W. E.). 
Pellia Fabroniana; Kent (A. W. E). Cephalozia pleniceps and 
Cephaloziella elachista; Brookfield (Miss Lorenz and A. W. E.). 
Anthoceros Macounii; Hartford and Wethersfield (Miss Lorenz). 
The census of New England Hepaticae now stands as follows: 
Total number of species recorded, 162; number recorded from Maine, 
108; from New Hampshire, 123; from Vermont, 97; from Massa- 
chusetts, 86; from Rhode Island, 66; from Connecticut, 120; common 
to all six states, 44. 
YALE UNIVERSITY. 
TWO PLANTS NEW TO MASSACHUSETTS. . 
ARTHUR J. EAMEs. 
POTAMOGETON HYBRIDUS Michx., var. MULTI-DENTICULATUS 
(Morong) Asch. & Graebner.— This plant is of coastal plain distri- 
bution, and, according to the last edition of Gray’s Manual, has not 
been known north of Connecticut. Like P. hybridus itself, it inhabits, 
apparently, shallow, quiet water. In Learned's Pond, South Fram- 
ingham, Massachusetts, it occurs in an unusual way,— in deep water. 
Although for years I have been constantly on this pond, I had known 
no Potamogeton to occur there. But in September, 1909, I observed 
long stems of some water plant reaching up from deep water toward 
the surface. Investigation showed many plants of P. hybridus, 
var. multi-denticulatus growing in twelve to eighteen feet of water. 
