United States Species of Lycoperdon. 



313 



quite minute, giving the surface a scaly appearance. 

 Rarely the warts are in the form of minute branny spinules 

 or stellate hairs. They are generally persistent but in the 

 mature plant they are so shriveled that they are scarcely 

 noticeable. It occurs throughout the season, sometimes 

 appearing in the month of June. Its smoother surface 

 and different warts will readily distinguish it from small 

 forms of L. Wrightli and L. gemmatum var. papUlatum. 



Lycoperdon leprosum B. ^ R. 



Leprous PuS-ball. 



Peridium W-b" broad, globose, sessile, white, with a 

 minutely scaly or leprous coating of floccose filaments ; 

 capillitium and spores greenish-yellow ; spores smooth, 

 .00016' in diameter. 



Among moss on trunks of living oak trees. Aiken, 

 South Carolina. Ravenel. 



This is a very small species, being in the dry state 

 scarcely larger than a marrowfat pea. It closely resembles 

 small forms of the preceding species from which it may be 

 separated by its softer and more tonientose coating, its 

 paler capillitium and spores and its peculiar habitat. In- 

 deed I know of no other species that inhabits the trunks 

 of living trees. I have seen no published description of 

 this species and have been obliged to derive the one here 

 given entirely from the dried specimens kindly com- 

 municated by Mr. Ravenel. 



Lycoperdon coloratum Fk, 



Colored Puff-ball. 



Peridium 5''-10'' broad, globose or obovate, subsessile, 

 radicating, yellow or reddish-yellow, brownish when old, 

 slightly roughened with minute granular or furfuraceous 

 persistent warts ; capillitium and spores at first pale, in- 

 clining to sulphur color, then ding^'-olive ; spores sub- 

 globose, smooth, about .00016' in diameter. 



Ground in thin woods and bushy places. Sandlake 

 and Catskill Mountains. Rare. July and August, 



This delicate little puff-ball is quite rare. It is gener- 



