THE UNGERIAN PERIOD 



35 



In his book, Exanthema der Pflanzen, 1 published in 

 1833, linger devotes 20 pages to the relation of fungi to 

 the plants on which they live. He calls them entophytes 

 or "disease organisms," not parasites, 2 holding firmly 

 to the idea of the previous period that they originate 

 from the diseased host tissues, but at the same time he 



FRANZ UNGER. 



The greatest autogenetist. (After a portrait in Wittrock's "Acta Horti 

 Bergiani.") 



recognizes them as distinct organisms, worthy of names 

 and classification. 



1 Unger, Franz: Die Exantheme der Pflanzen und einige mit diesen 

 verwandete Krankheiten der Gewachse, pathologisch und nosographisch 

 dargestellt, pp. 1-421, Wien, 1833. 



2 Unger, Franz: Originare Bildung der Krankheitsorganismen. In 

 Beitrage z. Vergleichenden Pathologic. Sendschreiben an Herrn Pro- 

 fessor Schonlein, pp. 39, 40, Wien, 1840. 



