236 
M. L. FERNALD 
ened ecology; and, unless we take the utmost pains to verify all com- 
pilations and to publish only what we have critically studied and 
digested, we shall soon cheapen and discredit phytogeography as 
well." Let us then set a high rather than an easy-going and off-hand 
standard, and phytogeography, which requires the most discriminating 
knowledge of exact identities as well as a broad outlook upon world- 
affinities and the power to draw logical deductions, will take in our 
country the dignified position of authority it has occupied in Europe. 
It is frequently said with some suggestion of sarcasm that New 
England is the region where botanists still carry a vasculum. and collect 
specimens. Yes, it certainly is! And from what I have today out- 
lined in the merest framework of a sketch it is obvious that the New 
Englander and his Canadian and Newfoundland neighbors will botanize 
for generations to come before they fully unravel their complicated 
flora and the vast processes by which vascular plants of nearly all 
regions of the globe have reached their unique corner of the North 
American continent. 
Gray Herbarium, ' 
Harvard University 
EXPLANATION OF PLATES XII-XIV 
Plate XH 
Range of i. Rosa nitida; 2. Ilex monticola; 3. Genus Bartonia; 4. Drosera 
filiformis; 5. Eleocharis inter stincta; 6. Ludvigia poly car pa; 7. Potamogeton fili- 
f or mis, var. Macounii; 8. Lonicera involucrata; 9. Dry as Drummondii; 10. Senecio 
Pseudo- Arnica; 11. Liriodendron Tulipifera and var. chinense; 12. Symplocarpus 
foetidus. 
Plate XHI 
Ranges of 13. Sieglingia decumhens; 14. Genus Corema, C. alba in outlined 
ellipses, C. Conradii in solid black. 15. Saxifraga Geum, 16. Genus Psilocarya, 
P. nitens in circles, P. scirpoides in squares, remaining species in solid black. 17. 
Polystichum mohrioides and allies, P. scopulinum in solid black squares, P. Lemmoni 
in circles, the remaining species in solid black dots and ellipses. 
Plate XIV 
Ranges of 18. Family Haemadoraceae. 19. Genus Erechtites, E. hieracifolia 
in the outlined ellipse, E. megalocarpa in the small square, the remaining species in 
solid black. 
