122 AMERICAN FERN JOURNAL 
THE WonpER Frrn.—Last winter, in Toledo, Ohio, 
my hostess came from market one day bearing a paper 
package on which was printed ‘‘Aqua, The Wonder 
Fern.”’ Inside was a printed slip: “It Grows in Water. 
Aqua, the Wonder Fern.”” Then a cut. Then “Easy 
to care for—Sure to grow. Guaranteed to live. It 
grows in water.” 3 
What do you think it was? Ten or a dozen stems 
of Lycopodium lucidulum, tightly tied together and cut 
off square, roots and all, so that it couldn’t possibly grow 
in anything! Price, twenty-five cents—M. A. Mar- 
SHALL, Stitt River, Mass. 
A Correction.—In assigning to the peculiar form of 
Polypodium vulgare described by Mr. Ridlon in a recent 
number of the Journal (Vol. 11, pp. 46-48) the name 
rotundatum the fact that Milde had long ago applied 
the same name to a European variety of P. vulgare—a 
quite different plant—was, unfortunately, overlooked. 
For this oversight, Mr. Ridlon was in no way responsible: 
he had not the necessary books at hand and left the 
searching of literature to me. A new name is required 
for the plant; it may, with reference to its much short- 
ened pinnae, be called Polypodium vulgare, f. brachypter- 
on Ridlon.—C. A. WEarTuErBy. 
American Fern Society 
The following letter from Mr. D. L. Topping to Prof. 
Hopkins, used here by the latter’s permission, should 
interest our members: 
“It is a far ery from Siberia, but I think that my last 
contribution to the Society’s herbarium was from 
Borneo, and now I am sending in this mail a small 
donation from Siberia. In the spring of 1919, as I 
