SPORE-DISCHARGE IN THE HYDNEAE 



155 



the spore-clouds which they emit have already been made in 

 Chapter IV. 1 



The spines of Hydnum erinaceus (Fig. 55) attain a length of 



FIG. 55. Hydnum erinaceus, the Hedgehog Fungus. A fruit-body 

 attached to wood. The very long spines are pendulous and point 

 toward the earth's centre. On the left, owing to damage by a slug, 

 the spines have become deflected somewhat from the perpendicular. 

 Photographed in Epping Forest, Middlesex, England, by Somer- 

 ville Hastings. Natural size. 



3-6 cm. and hang down rather close together ; but they are never 

 branched and so never resemble the branches of a compound 

 Clavaria. The branching of a Clavaria does not hinder the escape 



1 Pp. 102-105. 



