United States Sjpecies of Lycoperdon, 301 



by a net-work of minutely warted brown lines, a character 

 by which the species is readily distinguished. The species 

 is sometimes represented as having a stem-like base, but 

 our specimens do not show this character nor does Fries 

 mention it in his description. The plant probably varies 

 in this respect. 



Lycoperdon Frostii PL 



Frost's Puff-ball. 



Peridium subglobose, l'-2' broad, generally narrowed 

 below into a short stem-like base, echinate or shaggy with 

 long, stout, whitish spines which are generally curved or 

 stellately united and which at length fall oft' and leave the 

 peridium brown and smooth; capillitium and spores 

 purplish-brown; spores rough, .00016' -.0002' in dia- 

 meter. 



Ground in meadows. Brattleborough, Vermont. C. 

 C. Frost. August and September. 



This rare puff'-ball difters from L. constellaium in its 

 longer paler spines and in having the denuded peridium 

 smooth. I know of no other species which equals it in 

 the length of the spines. After they have fallen, the 

 brown or coppery -brown color of the peridium is visible. 

 The spores are scarcely as large as in the preceeding 

 species nor as closely warted. It is respectfully dedicated 

 to its discoverer. 



Lycoperdon atropurpureum Viti, 

 Purple-spored Puff-ball. 



Peridium globose depressed-globose or obovate, 6''-30'' 

 broad, generally narrowed below into a short stem-like 

 base, white cinereous or brownish, mealy-spinulose hairy- 

 spinulose echinate or stellately echinate, when denuded 

 smooth and subshining; capillitium and spores finally 

 purplish-brown, columella present; spores rough, .0002'- 

 .00025' in diameter. 



Sandy pastures, woods and bushy places. Common. 

 August — October. 



I have observed this species in the following localities ; 

 Trans, tx.] 39 



