Hugo De Vries Quote

[A plant] does not change itself gradually, but remains unaffected during all succeeding generations. It only throws off new forms, which are sharply contrasted with the parent, and which are from the very beginning as perfect and as constant, as narrowly defined, and as pure of type as might be expected of any species.


Species and Varieties: Their Origin and Mutation (1905), 28–9

Picture Quote 1

[A plant] does not change itself gradually, but remains unaffected during all succeeding generations. It only throws off new forms, which are sharply ...

Picture Quote 2

[A plant] does not change itself gradually, but remains unaffected during all succeeding generations. It only throws off new forms, which are sharply ...

Picture Quote 3

[A plant] does not change itself gradually, but remains unaffected during all succeeding generations. It only throws off new forms, which are sharply ...

Picture Quote 4

[A plant] does not change itself gradually, but remains unaffected during all succeeding generations. It only throws off new forms, which are sharply ...