THE PSEUDORHIZA OF COPRINUS MACRORHIZUS 361 



refer to these rooting bases as j^seudorhizae. Illustrations of some 

 of the fruit-bodies are shown in Figs. 177-187. 



I made excavations in the manure pile and discovered that 



Fig. 181.-('o/;///(».v ni'icrurhizits. Fniit-boclies excavated, tkuiiig tlie dovelopiuent 

 of their pseudorhizae, froin below tlie surface of a horse-dung manure heap. 

 Tlie position of tlie partit-ular j)iece of the substratum from which each pseutlo- 

 rhiza was growing is shown in every case. A-F, elongation of the pseutlorhiza 

 by intercalary growth just below the ru(Hnientary terminal pilous. C! J, pilei 

 enlarging on being brought up to near the surface of the substratiun l)y their 

 respective pseudorhizae. K, a pseudorhiza growing through densely matted 

 straw some inches below the sin-face of the substratum. Natural size. 



young fruit-bodies, hke those shown in Fig. 180 at A, B, and C 

 and in Fig. 181 at A, B, and C, were pushing up to the light a few 

 inches below the general surface of the manure. From a study of 



