[Vol. 7 

 102 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



S. pergamenum may be recognized by its occurrence in small 

 clusters on wood at or near the surface of the ground, by small 

 and nearly globose spores, and by the presence of gloeocystidia. 

 It is probably more frequent in the West Indies than in the 

 United States. When studying the specimens of this species 

 in Kew Herbarium I compared with them the type of Stereum 

 nitidulum Berk., collected by Gardner in Goyaz, Brazil, and 

 concluded that it is probably the same species as S. pergamenum. 

 In that early stage of my work I did not record the presence of 

 gloeocystidia in the types of either S. pergamenum or S. nitidu- 

 lum, and since I have no permanent preparation from the type 

 of the latter, further, more critical study may show that it is a 

 distinct species. The collection from Cuba, referred by Ber- 

 keley to S. nitidulum, has gloeocystidia and is referable to S. 

 pergamenum. 



Specimens examined: 

 Exsiccati: Ravenel, Fungi Car. 3: 25. 

 Ohio: Preston, T. G. Gentry (in N. Y. Bot. Gard. Herb, and Mo. 



Bot. Gard. Herb., 56301). 

 North Carolina: Blowing Rock, G. F. Atkinson, from Bot. Dept. 



of Cornell Univ., 4182. 

 Alabama: J. M. Peters, in Ravenel, Fungi Car. 3: 25, type 

 distribution; J. M. Peters, 601 and another specimen (in 

 Curtis Herb., the latter, Curtis Herb., 3814); Beaumont, 

 207 in part, the large zonate specimen mounted on left side 

 of card with specimens of S. Ravenelii (in Curtis Herb., 

 4629 in part) ; Auburn, F. S. Earle (in N. Y. Bot. Gard. 

 Herb, and Mo. Bot. Gard. Herb., 56306). 

 Louisiana: Ville Platte, A. B. Langlois, 2897. 

 Mexico: Motzorongo, near Cordoba, W. A. & Edna L. Murrill, 

 994 (in N. Y. Bot. Gard. Herb, and Mo. Bot. Gard. Herb., 

 54596). 

 Cuba: C. Wright, 836 (in Curtis Herb., under the name S. 

 nitidulum Berk.); Herradura, F. S. Earle, 5^5, and N. L. 

 Britton, E. G. Britton, F. S. Earle & C. S. Gager, 6326 (in 

 N. Y. Bot. Gard. Herb, and Mo. Bot. Gard. Herb., 56305 

 and 56263 respectively); Sumidero, J. A. Shafer, 13905 

 (in N. Y. Bot. Gard. Herb, and Mo. Bot. Gard. Herb., 

 56264). 



