ASPLENIUM EBENOIDES 491 
side.* It is probable, then, that this hybrid-plant was. produced 
by archegonia of C. rhizophyllus fertilized by antherozoids of A. 
platyneuron, The following September a second hybrid-plant 
sprang up, but, as in the meanwhile plants both of pure A. p/aty- 
neuron and of pure C. rhizophyllus had been produced, the organs 
cut away had probably been regenerated, hence no conclusions can 
be formed as to whether this second plant is the result of the same 
cross as the first or of the reciprocal cross. 
Fic. 5. X 2%. 
Shortly before September, from the appearance of plants of 
pure C. rhizophyllus and pure A. platyneuron in the fourth pot, it 
became evident that in that also the organs cut away had probably 
been regenerated, so for convenience the contents of the fifth pot 
Were transferred to the fourth one. Two hybrid plants sprang up 
in it soon afterward, about the same time that the second hybrid 
Plant appeared in the pot with the June plant. 
The only fact that could lead one to suppose that the hybrid 
Plants in the two pots might represent reciprocal crosses is that 
in the one containing the June plant the leaves of both plants, 
When y oung, were truncate at the base, like leaves of young A. platy- 
* In this connection it is interesting to note that a pocket of rock containing a plant 
of 4. ebenoides, found by G, A. Woolson in Vermont, contained also a plant of 4. 
Platyneuron, 
