437

ARNOLD ARBORETUM, HARVARD UNIVERSITY.
DIRECTOR'S OFFICE.

Brookline, Mass., September 26, 1891.

Dictated.

My dear Professor Bessey:

Your box of specimens arrived some days ago and I write to
thank you for the trouble you have have taken in sending them.

The Chokecherry appears identical with the plant I have
found at the base of the Rocky Mountains in Colorado. It looks dif-
ferent from our eastern Chokecherry and from the Pacific-coast P. de-
missa but I am at a loss to find characters to distinguish it. If
you can give me and further light on this subject, I shall be exceed-
ingly obliged to you.

Faithfully yours,
C. S. Sargent signature

Prof. Chas. E. Bessey,
Lincoln, Nebraska.