32 The Botantcal Gazette. [January, 
Uredinew Americane Exsiccate.—It is almost a year since the author 
published his prospectus of the above series of exsiccate, and only 
one fascicle has been issued. Two facts, if known at that time, would 
have precluded any thought of publication of this series; the one, 
that of change of employment of the author which would make it 
labor had already been bestowed. The encouragement given to the 
work by various botanists in America and Europe is very much appre- 
ciated. 
There is no doubt whatever of the desirability of such a series of 
Uredinex in this country, and botanists are to be congratulated that 
we are still to have one, and especially under no less reliable manage- 
ment than that of Dr. Arthur and Mr. Holway.—M. A. CARLETON, 
U.S. Dept. Agric., Washington, D. C. 
Isoetes saccharata.—In August, 1893, the writer collected specimens 
in Back creek, a tributary of Elk river, Maryland, which seemed to be 
Isoetes saccharata Engelm.,” but the material was lost, with the excep- 
tion of one poor specimen, and identification was not entirely con- 
clusive. : 
In August of last year, an abundance of fresh specimens was pro 
cured at the same place, and a further quantity in Piney creek cave, 
Elk river. There is no doubt now as to the species. This station is 
in the neighborhood of eighty miles north of Mr. Canby’s original 
station on Wicomico and Nanticoke rivers. Some exploring was done 
by me this year along the shores of Sassafras and of Still pond, inter- 
vening between Elk and Wicomico, without finding any of the plant- 
But it is probable that the distribution will be found, eventually, to 
be continuous along the eastern shore of the Chesapeake, in a belt 
cutting the numerous rivers a few miles back from the bay, and ex- 
tending at least from Elk to Nanticoke rivers—T. CHALKLEY PALMER, 
Media, Pa. 
