258 



PHARMACEUTICAL BOTANY 



When a small portion of the mycelium is mounted in 10 per cent, 

 alcohol and observed under the high-power objective, it will be noted 

 that each hypha has a transparent wall and" protoplasmic contents 

 and is divided by transverse septa into a number of cells. Each 

 cell contains protoplasm, which is differentiated into cytoplasm (cell 



FIG. 131. Three aerial hyphae showing the characteristic brush-like branching 

 and spore formation of Penicillium glaucum. This fungus is a true saprophyte 

 and is never found on living fruits or vegetables, a, Conidiophore branching 

 above into secondary conidiophores; b, sterigmata; c, conidiospores. (Schneider.) 



protoplasm) and several nuclei. In the cytoplasm will be seen 

 several large clear spaces. These are vacuoles and contain water 

 with nutritive substances in solution, called cell sap. Each hypha 

 with its branches is clearly distinct from every other one. 



