THE FUNGI. 77 



PLATE XIX. 



THE FUNGI. 



Mucor mucedo. 



FIG. I. Spore-bearing hyplue of inucor, as seen iii life, standing out from a piece ot 

 horse-dung. 



FIG. II. A small portion of the same fungus, teased out with needles. A. 4. 



FIGS. III., IV., V. Successive stages in the development of the sporangium. 



IV. is represented in optical section. 



V. A ripe sporangium crushed under pressure (the mucilaginous fluid, me., is represented 

 too darkly). 



The small figure to the right is one of a portion of V. in optical section. 



FIG. VI. The central columella of the above. 



(Figs. III. to VI. all D. 2.) 



FIG. VII. Isolated spores of mucor. 



FIG. VIII. Germinating spores of the same. 



FIG. IX i. to vii. successive stages in the germination of a single spore. 

 Only a portion of vii. is drawn. 

 Object glass culture, see Appendix I. 



(Figs. VII. to IX. all D. 4.) 



FIG. X. The product of twenty-four hours' growth from a single spore, itself indicated 

 as a slight enlargement. 



Object glass culture. A. 3. 



FIG. XI. A chlamydospore bearing hypha of the same. One spore is seen breaking 

 away. D. 4. 



FIG. XII. The torula stage of Mucor, from a growth kept submerged in a saccharine 

 solution. D. 4. 



See Max Bees (120) and Huxley (111). 



FIGS. XIII., XIV., XV. Successive phases in the conjugative process of Mucor. 

 From Brefeld (128). 



