1918] | Brewster,— Exotic Plants in Middlesex County 205 
leaves were smaller than those of the Tupelo and the fruit proved on 
close examination, to be three- instead of one-seeded. Although 
Miss Eaton had seen them there before she could not name them, nor 
could I. We then thought they might have “escaped” from the 
neighboring Cemetery where, of course, all manner of exotic plants 
are, or may be, introduced from time to time. Only a few days later, 
however, I came upon two others near our farm house and at a distance 
of almost three miles from Sleepy Hollow. They were growing beside 
a cart path that crosses low-lying, peaty land once cultivated but now 
for the most part densely thicketed with high blueberry bushes, 
alders, maples, gray birches, etc. Here they must have been estab- 
lished for many a year, being apparently mature although no more 
than seven or eight feet tall. This, however, is said to be about 
the maximum height of the species which proves to be Rhamnus 
Frangula L., a Buckthorn, native to Europe and given in the Manual 
as established in Ontario, on Long Island and in northern New Jersey. 
It was kindly determined for me at the Gray Herbarium, from speci- 
mens of its branches, leaves and fruit obtained at Concord. These, 
I understand, are the first that the Herbarium has received from any 
locality in New England, although the species has recently been 
reported, in Ruopora, xix. 230 (1917), as found near New Haven, 
Connecticut, by Prof. G. E. Nichols. 
Thus are we once more reminded of Thoreau’s humorous maxim: 
“Ne quid quesiveris extra te Concordiamque.” 
CONCORD, MASSACHUSETTS. 
