434 White : Tylostomaceae of North America 



the thin inner peridium : mouth raised, fimbriate, collar irregular, 

 inconspicuous, close : stem white within and fibrillose stuffed, 

 brownish and lacerate scaly outside, with a small mycelial bulb 

 at the base, 1.5-5 cm. long, 5 mm. in diameter: capillitium light- 

 colored, almo.st white, hyaline, freely septate, swollen at the joints, 

 4—8 fJi wide : spores subglobose, dark ferruginous, verrucose, some 

 short pediceled, '^-6(1 in diameter. (PI. 34, f 7-9.) 



Exsicc. : Ravenel, Fungi Car. Ex. 5 : 80 ; Ravenel, Fungi Am. 

 Ex. 724. 



New York, Peck ; South Carolina, Ravenel ; North Caro- 

 lina, Curtis, JVood ; Alabama, Earle ; Texas, Wright ; Wyom- 

 ing, Nelson ; New Mexico, Wriglit ; Colorado, Cockcrcll ; Kan- 

 sas, Kellerman. 



I 5. Tylostoma punctatum Peck, Bull. Torr. Club, 23 : 419. 1896 



Peridium subglobose, i — 1.3 cm. high, i — 1.3 cm. in diameter: 

 outer peridium scaly, retreating, leaving a ring around the base of 

 the peridium : inner peridium thin, whitish, covered with irregular 

 shallow pits : mouth raised, lacerate, irregular, rather large : collar 

 indistinct, close : stem equal, darker than the peridium, lacerate 

 scaly, with a small mycelial bulb, white within, hollow or stuffed, 

 2—3 cm. long, 3 mm. in diameter : capillitium whitish, hyaline, 

 branched, septate, much swollen at the joints, 4—8 p. wide : spores 

 subglobose, yellowish cinnamon-colored, minutely verrucose, some 

 short pediceled, 3—5 p. in diameter. (PI. 34, f. 1—3.) 



Kansas, Bartholomew ; Nebraska, Webber; Washington, 

 D. C, Braeneile. Growing in sandy pasture land. 



Species not seen 



16. Tylostoma semisulcatu.m Peck, Bull. Torr. Club, 22 : 



209. 1895 



" Peridium subglobose, usually a little longer than broad, 6-8 

 lines broad, 9 lines long, glabrous above, ferruginous-tomentose 

 on the lower half: osteolum entire : stem equal, about 2 inches 

 long, even and glabrous or but slightly furfuraceous on the upper 

 part, the lower part longitudinally sulcate, whitish : spores ferru- 

 ginous, globose, .00016 to .0002 in. broad: threads of the capil- 

 litium not septate. 



"■ Sandy soil, Nevada. Collected by C. W. Irish, communi- 

 cated by T. Taylor. 



"This species is separated from T. inanimosum Fr. by its peri- 



