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RESEARCHES ON FUNGI 



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Fig. 60. — Fimelaria fimicola. Diagram illustrating successive stages in the passage 

 of vacuoles through a hypha in which the protoplasm was streaming from cell 

 to cell. A hanging drop of cleared dung-agar had been inoculated with mycelium 

 from a stock culture and, three hours later, some of the new hyphae developed 

 from the inoculum exhibited streaming. Part of one of these hyphae, including 

 two septa, is here represented in median longitudinal section. A-F, successive 

 stages in the appearance of the hypha during about 10 seconds : the protoplasm 

 is distinctly granular and the direction of its flow is indicated by arrows ; 

 a-f, the fusion of two vacuoles and the pinching off of pieces of the enlarged 

 vacuole through the pore of the septum ; and g-l, the passage of a large vacuole 

 as a whole through the pore of a septum ; a, the larger vacuole is stationary, 

 protoplasm is streaming around the front of it and through the pore in the 

 middle of the septum, and a smaller vacuole which is being carried aiong by the 

 protoplasm is about to meet and fuse with the larger vacuole ; b, the two vacuoles 

 are fusing to form a single vacuole ; c, the vacuole has been pressed against the 

 septum by the flowing protoplasm ; d, a part of the vacuole has been pressed 

 through the pore and is about to be constricted off ; e, four pieces of the vacuole 

 have been constricted off the parent vacuole and are being carried along by the 

 protoplasm in the next cell, and the remaining part of the parent vacuole has 



