The Mutation Theory Experiments And Observations On the Origin of Species in Th
The Mutation Theory Experiments And Observations On the Origin of Species in Th
Vries Hugo De
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{Sedum reiiexum cristatum) ; the monstrosity must therefore be more than two centuries old. Since Hunting's time fasciation in this species has repeatedly been observed and recorded. Cf. Penzig, Teratologie, I, p. 467. The character is strongly inherited. I raised from seed a square-meter bed full of plants with more or less flattened branches, some of which I have photographed and reproduced in Fig. 35. Normal cylindrical or atavistic branches are shown both in the above figure from Hunting an...d in that from my own culture (Fig. 35 at). species in Cultivation. 183 which they belong were introduced; and have been de- scribed and drawn in early works on the subject. Abra- ham Hunting gave a long list of them in the year 1671.^ In it will be found examples of double flowers of Vinca, Colchicum, Hepatica, Cardaniine, Cheiranthiis Cheiri, Papaver, Viola, Caltha, Althaea, and others; of white- flowered forms of Ononis, Syringa, Centaiirea, Digitalis, Fritillaria, Hepatica besides white strawberries, white Fig.
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