GEOLOGY OF LA SALLE COUNTY. 



155 



Genera. Spores of five white. 



Lepiota procerus. Upper surface scaly, gills 



free from stem. 



Armillaria melleus. Gills connected to stem. 

 Dry eating-, says Mr. Calkins. 

 Tricholoma g-ambosus. Gills notched next stem, 

 Clitocybe dealbatus. Gills attached to and run- 

 ning- down stem, white. 



Pleurotus ostreatus. Grows in great masses on 

 stumps, as much as a bushel from one stump. 

 Ulmarius. On elm trees, spores brown. 

 Psalliota arvensis. 

 P. Campestris. Common mushroom, white, smooth, 

 above pink, or purple below. Fields. Spores 

 black. 



Coprinus comatus. Gills soon becoming- dark 

 and melting-. 

 C. atramentarius. Bluish color. 



Hyg-rophorus Virg-inius, white, waxy below. 



Lactarius deliciosus, Giving* out milk when 



cut or broken. 



piperatus. 



volemum. 



Rassula emtica. Gills rigid, not milky, 

 virescens. 



Caritharella cibarius. Gills thick, branched. 

 Panus styplicus. Cap fleshy, tough. 

 Marasmius subvenosus. Gills thick, rough. 

 Lentinus Lecontti, cap hard, dry, tough. 

 Lenzites sepearia. Cork3^ gills netting. 

 Iv. betulina. 



TUBE-BEARING FUNGI— POLYPAREI. 



BOLETUS EDULE. Made up of many squarish 



tubes. Tubes separable. 

 POLYPORUS ARCUUARIUS. Tubes not easily 



