Ill 



There are evidently three coats, or layers, to the peridinm instead of tlie 

 usual two. The first or outermost coat, which may be called the cortex, 

 is more or less rough or warty; the second or intermediate coat is firm 

 and thick, 1.5-2 mm. : the third or innermost layer is thin and 

 membranous. The illustration (Fig. 4) brings out the features of 

 the peridial coats. The thickness of the peridinm proper suggests Mijce- 

 uastriiin but the other coats and the capillitium and spores are very dif- 

 ferent. The presence of the thin papery inner peridinm seems to be 

 nin(nie among puff-balls and so far as I have been able to learn only one 



Figure 4. CALVATIA LEPIDOPHORA. 



Showing the rough cortex, the thick intermediate coat, and the thin niiinbranous inner lining 



which is now spHtting and falling away in flakes. 



species possessing this character has ever been described, viz., Lycopcrdon 

 lepidophono)!. Ellis and Ev. (Jour. Myc. 1:88. 1SS5). Mr. C. G. Lloyd, 

 to whom I have sent material, agrees with me in the opinion that our 

 specimens belong here, saying in a letter that "it is the second collection 

 known of this very rare species. This is the first time I have ever re- 

 ceived it, and have only previously seen the t.vpe in the Ellis collection [New 

 York Botanical Garden]. The structure, spores, capillitium, and peculiar 

 inner membrane covering the spores are exactly the same. The difference 



