A New Fungus. By O. Masses. 845 



it would according to present ideas have been considered as an 

 example of parthenogenesis, which can in all cases be explained by 

 assuming the non-differentiation of the vegetative protoplasm, as 

 was proved in this instance, an idea supported by the fact, that in 

 the most satisfactory examples* the male organ is absent or 

 functionally imperfect; this being so, parthenogenesis means a 

 retrogression to the vegetative stage of reproduction, which is not 

 invalidated by the organ retaining the sexual female form. 



♦ Sachs, « l*ext-book of Botany,' 2nd English edition, pp. 902-3. 



