OF SOME EDIBLE AMERICAN FUNGI. 151 



Hypholoma candolleanum.* The specimens were obtained from East Milton, 

 Mass., in June, 1897. A few small, young specimens were also obtained 

 from Brookline, Mass. Analyses follow: 



Full-grown Specimens. Younger Specimens. 



Water 88.97 per cent 91.97 per cent 



Total solids 11.03 " " 8.03 " " 



The dry substance contained : 



Total nitrogen 4.28 per cent 4.44 " " 



Extractive nitrogen 1.79 " " ... 



Protein nitrogen 2.49 " " ... 



Ether extract 2.50 " " ... 



Crude fiber 12.10 " " 



Ash 13.90 " ' " 19.9 " 



Material soluble in 85 per cent alcohol 44.40 " " ... 



Agaricus campestris (Common mushroom). Two varieties of the common 

 mushroom were collected in New Haven. Fifteen specimens of one variety 

 weighed 42 grams, an average weight of 2.8 grams each. The analysis gave : 



a. b. 



Water 87.88 per cent 92.20 per cent 



Total solids 12.12 " 7.80 " " 



Total nitrogen in dry substance . 4.42 " " 4.92 " " 



Ash in dry substance 11.66 " " 17.18 " " 



Eegarding the differences in nitrogen content of cap and stem, compare 

 the remarks under Clitocybe multiceps. 



Marasmius oreades (Fairy-ring mushroom). Twenty freshly gathered 

 specimens (from New Haven) weighed 9 grams, an average weight of 0.46 

 gram each. The analysis gave: 



Water 74.96 per cent 



Total solids 25.04 " " 



Total nitrogen of dry substance 5.97 " " 



Ash of dry substance 7.23 " " 



Cortinarius collinitus (Smeared cortinarius). Young specimens gathered in 

 New Haven early in November, 1897. The analysis gave : 



Water 91.13 per cent 



Total solids 8.87 " " 



Total nitrogen of dry substance 3.63 " " 



Digestion Experiments. In order to procure further data 

 regarding the nutrient value of the mushrooms, artificial 



* The specimens corresponded with those described under this name by 

 Stevenson in his work on British Hymenomycetes. Mr. Hollis Webster 

 has informed the writer that Professor Farlow is inclined to regard them 

 as H. apendiculatum. 



