266 



COMPARATIVE MORPHOLOGY OF FUNGI 



mould on the leaves of willow, poplar, rose, greenhouse plants, etc. All 

 possible imperfect forms have been ascribed without their appropriateness 



« 



Fig. 177. — Teichospora salicina. 1 to 4. Fundaments of a pycnium. 5. Section of 

 sessile pycnium. 6. Tuft of conidiophores. 7. Coremium closing up to form a stipitate 

 pycnium. 8. Stipitate pycnium, St, Stalk; P, pycnium; H, neck. (X 360; after Zopf, 

 1878.) 



being culturally determined. Their mycelium develops by sprouting in 

 sugar solutions, as on honey dew in nature, occasionally forming clumps 

 of dark brown resting cells, coniothecia. Except for this gemma-like 



