Article A theory of plant geography
R. D’O. Good
Introduction New Phytologist (1931) 30: 149 doi: 10.1111/j.1469-8137.1931.tb07414.x
In the course of some years' work on the geographical distribution of the Angiosperms, I have paid particular attention to certain theoretical aspects of the subject. More especially have I endeavoured to discover the principles underlying the processes of distribution in order to use them as a basis for a working hypothesis capable of explaining the chief features of Angiosperm geography.
Up to the present I have come to certain conclusions which, although doubtless incomplete, nevertheless appear to me sufficiently interesting and useful to warrant their publication. Briefly these results are as follows: first, the recognition that six general statements (set out below) are so incontrovertible that they may reasonably be regarded as basic principles: second, the fact that these principles satisfactorily form the framework of a general hypothesis of plant distribution provided that an additional theory, relating to their inter-relationships, is acceptable: third, the presentation of such a theory under the name of "The Theory of Tolerance.�