-Jan., 1903.] 
Adaptability in Ferns. 
359 
to be no soil whatever, now it lives in the drift soil with apparent 
ease. Camptosorus was taken from the face of a cliff where it 
invariably grows. Now it is growing flat on the ground and lias 
spread considerably by its peculiar method of leaf-rooting. 
The fact that these ferns, many of which live under peculiar 
conditions, should flourish under one and the same environment 
with but little of human control, certiinly shows a remarkable 
power of adaption. 
The question might well be asked : What would become of 
these ferns if left entirely to themselves? From what has already 
been stated with regard to the rapidity of propagation in some of 
the species, it would seem that those that find here their normal 
habitat and those that can most readily adapt themselves to the 
new conditions, would eventually choke out the weaker species. 
It is interesting to note in this connection that among those which 
have shown a decided tendency to spread, Cystopteris bulbifera, 
Dryopteris thelypteris, and Phegopteris dryopteris have been 
troublesome. 
A list of ferns which were transplanted is given below. A few 
of these were brought from a distance. In such cases the locali- 
ties are given opposite the names. 
1 . Botrychium virgianianum. 
2. Botrychium lunaria. 
3. Osmunda regalis. 
4. Osmunda cinnamomea. 
5. Osmunda claytoniana. 
6. Onoclea sensibilis. 
7. Onoclea struthiopteris — Brevoort Lake, Mich. 
8. C3'stopteris bulbifera. 
9. Cystopteris fragilis. 
10. Dryopteris acrostichoides. 
11. Dryopteris thelypteris. 
12. Dryopteris cristata —Brevoort Lake, Mick. 
13. Dn^opteris marginalis. 
14. Dryopteris spinulosa, var. — Walter’s Park, Pa. 
15. Dryopteris spinulosa, var. — Walter's Park, Pa. 
16. Phegopteris hexagonoptera, 
17. Phegopteris dryopteris — Brevoort Lake, Mich. 
18. Camptosorus rhizopliyllus. 
19. Asplenium pinnatifidum. 
20. Asplenium platyneuron — Walter’s Park, Pa. 
21. Asplenium trichomanes, 
22. Asplenium angustifolium. 
23. Asplenium ruta-muraria— Clifton Gorge, O. 
24. Asplenium acrostichoides. 
25. Adiantum pedatum. 
26. Pteris aquilina. 
27. Pellaea atropurpurea — Clifton Gorge, O. 
28. Polypodium vulgare. 
Antioch College. 
