258 
usual in preserving the more delicate seaweeds. If the collector has 
no means of pressing the specimens, they may be gathered in bulk, 
and, when air-dried, sent in packages to Professor Eaton, who can 
have them softened and spread out for drying at some convenient 
time. Care should be taken to note the place and time of each col- 
lecting, and the approximate height of the station above sea-level. 
The cooperation of American Botanists is respectfully asked 
for; and letters or collections may be addressed to either of the 
undersigned. DanieL C. EATON. 
YALE UNIVERSITY, New Haven, Conn. 
EpwIn Faxon. 
317 LAMARTINE STREET, JAMAICA PLAIN, Mass., April, 1893. 
Note on some Characee.—The first fascicules of the second 
part of the “Characee of America’’ was issued at the close of 
1892. I omitted to affix any date, so that this notice seems neces- 
sary to secure priority for the new species therein described. i- 
tella formosa, Allen, described as a new species in this volume of 
the BULLETIN, p. 119, now turns out to be a form of WV. hyalina, 
A. Br., related to WV. hyalina, var. Engelmanni, A. Br., first described 
as VV. Engelmanni, A. Br. I have recently had the opportunity to 
examine the Engelmann collection of Characee belonging to the 
Shaw School of Botany, in St. Louis. This collection is rich in 
types of A. Braun’s species; it contains one fine specimen of AV. 
Engelmanni, of which I have secured photographs. 
—T. F. ALLEN. 
Ipomea pandurata. Not long ago my attention was drawn 
to a huge root, which was unearthed by the workmen in the 
cemetery of this place (Springfield, Ohio). On examination it 
proved to belong to the above named species. This particular root 
is remarkable only for its size. I have never heard of the root of | 
this species reaching the size of the one I am describing, therefore I | 
think it worthy of record. Professor Gray says the root often weighs 
from ten to twenty pounds. The weight of the specimen here 
was found to be twenty-five pounds. The length was about two ~ 
and a half feet, and the diameter over six inches at. the thickest _ 
part. Flowers of this “ Man-of-the-Earth” have been observed 
annually for twenty-nine years at the place where the root was — 
dug up. A. F, Linn, 
‘WITTENBERG COLLEGE, May 15, 1893. ee 
