172 Cincinnati Society of Natural History. 



very long, branched, the main stem thinner than the spores, the 

 branches slender; spores globose, distinctly warted or echinulate, 

 5-6 mic. in diameter. 



Growing in thickets and open woods among mosses. Pendium 

 1-2 inches in diameter and 3-5 inches in height, the stem-like base 

 1 inch or more in thickness. This species has been reported from 

 N. America by various authorities, but I have never seen any 

 American specimen. 



11. C. elata, Massee. Peridium globose or depressed globose 

 above, plicate below and abruptly contracted into a long stem-like 

 base ; the base slender, cylindric or tapering downwards, sometimes 

 lacunose ; mycelium fibrous and filamentous. Cortex a very thin 

 coat of minute persistent spinules or granules ; inner peridium 

 white or cream-colored becoming brown or olivaceous, very thin 

 and fragile, after maturity the upper part soon breaking up into 

 fragments and falling away. Subgleba occupying the stem-like 

 base, along time persistent; mass of spores and capillitium brown 

 or brownish-olivaceous; the threads very long, branched, the main 

 stem as thick as the spores, the branches more slender: spores 

 globose, even or very minutely warted, 4-5 mic. in diameter with 

 a short or minute pedicel. 



Growing among mosses in low grounds and bushy places. New 

 England, Humphrey ; New York, Peck. Peridium 1-2 inches in 

 diameter and 3-6 inches in height, the stem-like base ~%-% of an 

 inch in thickness. This American form of Lycoperdon saccatum has 

 lately been separated from it, and named, figured and described as 

 Lycoperdon elatum, by George Massee. 



EXPLANATION OF PLATE XVI. 

 A. Tylostoma, Pers. 



1. T. mammosum, Mich. 



2. T. verrucosum, Morg. 



3. T. fimbriatum, Fr. 



4. T. campestre, Morg. 



5. T. Meyenianum, Kl. 



B. Calvatia, Fr. 



6. C. craniiformis, Schw. 



7. C. elata, Massee. 



