iQii] Francis Ernest Lloyd 41 



Fig. 20. Tubulär membrane spreading out at its end on the Cover glass. 

 Stained with methyl blue. 



Fig. 21. Ditto, formed from a cell of a fruit three months after treatment 

 with acetic acid vapor. 



FiGS. 22-23. Spherical and hemispherical membranes. 



Fig. 24. a, Depression in tannin-mass filled with protoplasm with vacuoles 

 and chromatophores ; b, the same after partial swelling of the tannin-mass. 

 Arrows show direction of pressures. 



Fig. 25. Idioplast from ripe fruit, with adhering tannin membranes. Taber. 



Fig. 26. Idioplasts, burst in situ in a fruit ripened at a low temperature. 



Fig. 27. Same fruit as fig. 21. Tannin-mass fractured by imbibition, the 

 diflfusion of free tannin taking place from the torn edges of the cell wall. 



FiGS. 28-30. Diffusion of free tannin forming membranes from openings 

 in the exposed surface of extruding tannin-mass. 



FiGS. 31-33. Membranes formed at the fissures in the tannin-mass. 



FiG. 34. Tannin-masses at the end of an idioplast, showing independent 

 bodies of all sizes. 



