White: Tylostomaceae of North America 429 



Lycoperdon II. Mich. Nov. Plant. Gen. 218. 1729. 

 Tiilostoma imbricatiim Pers. Romer Neues Mag. Bot. i : 86. 



1794. 



Lycoperdon sqiiamoswn Gmel. Syst. Nat. 2 : 1462. 1796. 

 Tidostoma sqiianiosiiui Pers. Syn. Meth. Fung. 139. 1801. 

 Tidostoma mainmosiim Fr. Syst. 3 : 42. 1829. 

 Tylostoma mammostivi var. squamosinn De Toni ; Saccardo, 

 Syll. Fung. 7: 61. 1888. 



Peridium subglobose, 1-1.5 cm. high, 1-2 cm. in diameter, 

 the brown outer peridium soon retreating, leaving the inner peridium 

 smooth and membranaceous : mouth short tubular, entire, promi- 

 nent : collar inconspicuous : stem slender, lacerate scaly, or nearly 

 smooth, with a small mycelial bulb, stuffed with loose silky threads, 

 1-5 cm. long, 2.5 mm. in diameter: capillitium 4-7 // thick, sep- 

 tate, somewhat swollen at the joints, light colored, hyaline : spores 

 subglobose, 3-5 11 in diameter, minutely verrucose, some short 

 pedicled. (PI. 31, f. 1-3.) 



Exsicc. E. & E. N. A. Fungi 2734 (as T. inainmosum). Ra- 

 venel. Fungi Am. Ex. 137 (as T. mammosiini). 



New York, Undcrivood, Fischer; New Jersey, Ellis ; Penn- 

 sylvania ; Michigan, McBride ; Wisconsin, D. V. B ; North 

 Carolina, Curtis, Wood ; Kansas, Kellerman, 770; Indiana, Cook, 

 Undcrzvood ; Florida, Underwood; Nebraska, Webber ; Texas, 

 Harris; Colorado; Iowa; New Mexico, Wright, Fcndhr, Cock- 

 erell ; Mexico, C. L. Snnth. 



3. Tylostoma verrucosum Morg. Jour. Cin. Soc. Nat. Hist. 12 : 



163. //. 16. f. 2. 1890 

 Peridium depressed globose, 1-1.2 cm. high, 1-1.5 cm. in di- 

 ameter : outer peridium of scales and warts persistent : inner 

 peridium brownish, becoming smooth with age : mouth entire, 

 raised, prominent, short tubular : collar of delicate lacerate points 

 descending about the top of the stem : stem 4-5 cm. long, .5 cm. 

 in diameter, slender, the surface lacerate scaly, brown, hollow, 

 cylindrical and having a large basal bulb composed of the mycelial 

 strands and adherent earth : capillitium almost white, hyaline, 

 slender, septate, some of the joints rather swollen, ^-^ 1^ wide: 

 spores subglobose, granular, lightish cinnamon-colored, 4-7 //. in 

 diameter. (PI. 31, f. 8-10.) 

 Ohio : Morgan, C G. Lloyd. 



Growing on the ground in rich soil in woods. The mycelial 

 bulb is usually larger than the peridium. 



