426 



RESEARCHES ON FUNCxI 



Mode of Germination of a Gemma. — Preparations for the ger- 

 mination of a gemma are made before the gemma is blown away 



Fig. 215. — Omphalia flnvida (from Trinidad). A gemma germinating. Drawn 

 24 hours after it was removed from its pedicel and placed in a hanging-drop 

 of malt-agar. The upper surface of the gemma, which visually comes into 

 contact with a leaf, is shown. The radiating hyphae, which are growing 

 rapidly in length, are prolongations of the short infection hyphae which were 

 produced by the pear-shaped peripheral cell.3 and were already present on the 

 gemma before its removal from the pedicel. Drawn by A. H. R. Buller and 

 Ruth Macrae. Magnification, 88. 



from its pedicel ; for, when a gemma is mature and still attached to 

 its pedicel, there grow outwards into the air from its pear-shaped or 

 clavate cells all around the outer surface of its oblate-spheroidal 

 part a large number of what we have called infection hyphae (Figs. 



