1901] Sargent,— Crataegus in the Province of Quebec 71 
phaenogams and cryptogams, including the fullest set of William 
Oakes’ plants which were distributed after his death. The Lowell 
herbarium, given to the Society by John Amory Lowell, numbers 
about 18000 sheets, among which are the following collections: 
Mary Wight's Algae and the invaluable Thomas Taylor and C. J. 
Sprague collections of lichens, as well as some of W. S. Sullivant's 
mosses. The Lowell herbarium is preserved intact and is still 
arranged according to the system of Endlicher's Genera Plantarum. 
Bowdoin College, Brunswick, Maine. — The herbarium of 
Bowdoin College, now in charge of Professor L. A. Lee, is inaccessi- 
ble for reference, being mostly unmounted and without special 
arrangement. It contains many specimens of plants collected by 
Rev. Joseph Blake, but the most important portion of the herbarium 
is probably the plants collected on the early surveys of Maine. 
Brace, John Pierce, see Williams College. 
NOTES ON A COLLECTION OF CRATAEGUS MADE IN 
THE PROVINCE OF QUEBEC NEAR MONTREAL. 
C. S. SARGENT. 
THE following notes are based on collections. made by Mr. J. G. 
Jack, principally in 1899 and 1900, in the neighborhood of the Lachine 
Rapids of the St. Lawrence River. The region which has been par- 
ticularly examined by Mr. Jack is on both banks of the Rapids, and 
south of the River extends from a point just below them up the River 
for a distance of fifteen miles and back from the River for about ten 
miles. The country is here broken into rough rocky limestone ridges, 
which have been principally cleared of their original forests and are 
now largely covered with thickets of Thorns, Wild Apples, Plums and 
Wild Cherries. In addition to the following species, which can be 
distinguished in Mr. Jack’s collections, are probably a number of 
others in the group of the Zenuzfoliae. "These, however, cannot be 
satisfactorily characterized until the plants can be more fully studied 
in the field than has been possible up to this time. 
CRUS-GALLI. 
CRATAEGUS CRUS-GALLI, Linnaeus, Chateaugay, 7. G. Jack, August, 
1892, May and August, 1899. 
