An INTERESTING FERN HYBRID 37 
American tropics. All these forms, including the Euro- 
pean plant, must be studied together before a satisfactory 
conclusion as to their separateness canbereached. Only 
on the basis of the ‘‘made in America” slogan can they 
be distinguished at present. 
The third paper® chronologically has the title ‘The 
American variations of Lycopodium annotinum.” Three 
varieties besides the typical form are recognized, one, 
acrifolium, being new. The typical form is transcon- 
tinental, being distributed from Newfoundland to 
Alaska and from New York to Washington, also in 
Eurasia. The variety, acrifolium, is cited as from 
Newfoundland and Connecticut to Michigan, and also 
in Siberia. It may be pointed out that the differences 
between these two are exactly analogous to those existing 
between L. lucidulum and its var. porophilum. “ Varie- 
ties alpestre and pungens seem to be the alpine and boreal 
extremes of the two woodland plants of more temperate 
habits, true L. annotimum and var. acrifolium.” It is 
also noted that ‘“‘The ranges of these varieties thus fall 
essentially into the definite groupings—Europe and 
western America, eastern America and Asia—already 
familiar in hundreds of cases.” 
Brooktyn Boranic GARDEN. 
An Interesting Hybrid 
AMEDEE HANS. 
A very interesting case of accidental hybridization 
happened among my seedlings some time ago. In a lit- 
tle frame where I used to raise ferns from spores I had, 
among others, Scolopendrium and Asplenium Tricho- 
_manes. In the Scolopendrium pot, by accident, grew a 
ee 
-* Rhodora 17: 123-125. Je 1915. 
