126 



MINNESOTA MUSHROOMS 



Geaster limbatus Bordered Geaster 



Cap 2-3 cm. wide, outer -wall splitting into 6-10 lobes, Avith brownish faces; 

 inner wall on a short broad stalk, the mouth low-conic, in a paler circle, fringed ; 

 spores brownish, globose, rough, 3-4/i. The name probably refers to the circle 

 about the mouth. 



Common on the ground in woodland ; not tested. 



Figure 90. Tylostoma mammosum 



Geaster striatus Striate Geaster 



Cap 1-3 cm. wide, the outer wall split into 5-8 lobes; inner wall brownish, 

 the mouth tall-conic, radiately furrowed; spores darkish, globose, rough, 3-5/x. 

 The name refers to the mouth. 



Common on the ground in woodland or grassland ; not tested. 



TYLOSTOMA 



Cap more or less globose, on a distinct cylindric stem; outer wall disappearing 

 early. The mouth is round and definite in our species. Found on the ground, 

 especially in sandy soil ; edibility not tested, but scarcely of importance. The name 

 refers to the cartilage-like mouth of some species. 



Tylostoma mammosum Stalk Puffball 



Cap 7-12 mm. wide, whitish to brownish, the outer wall powdery and disap- 

 pearing early, mouth round, small, raised; stem 3-10 cm. by 2-4 mm., whitish. 



