I^YCOPERDON. 167 



Spores and capillitium, olivaceous, then purple, threads 

 branched, the main stem about as thick as the spores. Spores 

 echinulate. 



Growing on the ground. 



ly. glabellum. Pk. 



Peridium, obovate, with a soft, delicate, velvety bark, 

 yellowish, inner peridium smooth and glossy. 



Spores and capillitium, olivaceous, then purple. Spores 

 globular, warted. 



Found specimens in chaparral ridgewoods. 



Olive-spored Series. 



I/, gemmatum. Fr. 



Peridium, turbinate, depressed above, elongated into a 

 kind of thickened stem ; bark farinose, adnate, covered with 

 persistent warts or spines. 



Spores and capillitium, olivaceous. 



There is no species of puffball so common as this. You will meet with 

 it not only in meadows and grainfields, but in open woods. 



ly. separans. Pk. 



Peridium, broadly ovate, often much depressed, plicate 

 underneath, with a cord- like root ; cortex a dense white coat 

 of convergent spines, which at maturity peel off in flakes, 

 revealing a thin furfuraceous layer of minute yellowish scales 

 covering the inner peridium. 



Subgleba, broad, occupying about one-third of the cavity. 



Spores and capillitium, dark brown. 



Found specimen in an open grassy place in chaparral ridgewoods. 



ly. pedicellatum. Pk. 

 Peridium, obovate, with a slender mycelium; cortex 

 whitish, changing to dirty brown, covered with convergent 



