238 SCIENCE PROGRESS 



degree, if at all. The stages of development in the nests of 

 different species may then be attributed to differences in the 

 agarics cultivated, and not to differences in the intelligence of 

 the ants. The abnormalities of the fungi of the leaf-cutting ants 

 are the simplest variations which could occur, and they can be 

 paralleled in many other species which are not subject to the 

 influence of insects. The spheres of the termites are far more 

 complex, and yet they have a close parallel in the mycelium of 

 another agaric. The conclusion is that, although the habit 

 of cultivating fungi affords a striking instance of similarity of 

 habit in widely separated groups of insects, it is incorrect to 

 attribute the modifications of the hyphae to the influence of the 

 cultivators. 



Bibliography 



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Holtermann, C, " Pilzbauende Termiten," Bot. Untersuchungen, S. Schwendener 



(1899), pp. 411-420. 

 Doflein, F., " Die Pilzkulturen der Termiten," Verhandl. d. deutsch. zoo/. 



Gesellschaft (1905), pp. 140-149. 

 MoLLER, A., Die Pilzgdrten einiger sudamerikanischer Ameisen (1893). 

 SCHIMPER, A. W. F., PJlanzen-Geograpkie (English translation), pp. 137, 138. 

 KtJSTER, E., Pathologische Pftanzenanatomie (1903), p. 124. 

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