ORGANIC FORM AND ARCHITECTURE 677 



anticipations on the part of Caesalpino, Malpighi.and Joachim Jung ; 

 but It IS not always clear whether it was beUeved that a vegetative 

 leaf might actually become a floral leaf, or whether no more was 

 suggested than the possibility of thinking of leaves and floral parts 

 as "metamorphoses" of the organs of an ideal "archetypal" plant. 



Fig. 95. 



Part of Goethe's Figure of the Homologies between Floral Parts and Foliar 

 Structures, i and 2, the stigmas of carpels; 3, 4, walls of the seed-box; 

 5, the seed-leaves or cotyledons; 6, typical stamen; 7, slightly petaloid 

 stamen; 8, intermediate between stamen and petal; 9, petal; 10. sepal; 

 II, a compound leaf with pinnules; 12, a tendril transformation of a leaf. 



But there was no dubiety in the mind of Caspar Friedrich Wolff 

 (i733-i794)» who came to the subject as a zoological embryologist, 

 and showed that the various "appendicular organs", whether 

 ordinary leaves or floral parts, have a similar mode of development 

 from the growing point of the stem. He wrote firmly: "In the entire 

 plant, whose parts we wonder at as being, at the first glance, so 



