62 Trans. Acad. Sci. of St. Louis. 



P. PAPiLiONACEUs, Pk. (P. — 372). Common. Usually on 

 manured ground. Quite variable in color and size. 

 Mus. Eep. 23, p. 101. 



Spores, 11.5-14.5X7-9^1. Acute ends. 



COPRINUS. 



C. MiCACEus, Fr. (200). 



Common and abundant, April to Nov., grows in tem- 

 perature under 52°. At stumps and trees. Delicate. 

 Mus. Eep. 23, p. 104. 



Spores, 6-9 X 5-6/x. 



C. COMATUS, Fr. (321). 



Common. On rich or filled ground, throughout the 

 season. Excellent. Mus. Rep. 23, p. 103. 



Spores, 9-11 X 7-9At. 



C. ATRAMBNTARIUS, Fr. (507). 



Not as frequent as the preceding. Edible. 



Spores, 7-9X6/^' 



C. SQUAMASUS, Morg. (195). 



Forest park, Aug. 8, 1899; June 3, 1900. On very 

 rotten trunk. Quality inferior to the two preceding 

 species. Jour. Cin. Soc. Nat. Hist., Vol. 6, p. 173: 

 pi. 8. 



Spores, i7-9 X 5-6a«' 



C. QUADRIFIDUS, Pk. (P. —380). 



Maline Creek, a colony, on heap of flooded rubbish; 

 July 17, 1899; Creve Coeur, July 14, 1904, on wood. 

 Mus. Rep. 50, p. 106. 



Spores, 7-9X4-4.5At. 



C. PLICATILI8, Fr. ? (196). 



O'Fallon park; on grassy ground. 

 Spores, 11.5- 14.6 X9-10/i. 



C. EPHEMERUS, Fr. ? (1178). 



On lawn. Ep. 252. 



Spores, 14-19 X 9Ai- 



