1920] 



BURT THELEPHORACEAE OF NORTH AMERICA. XII 203 



Fructifications 4-8X1-2 cm., margin reflexed 1 mm. 



On bark of fibrous structure of an unrecorded species. Cuba 

 and Jamaica. Rare. 



S. ferreum may be recognized by its resupinate, drab fructifi- 

 cations, rarely having a narrowly pileate margin, and by the 

 thick hymenial layer containing innumerable small colored 

 cystidia which at the surface of the hymenium have the colorless 

 incrustation roughened. So few spores were observed that it 

 may be they were foreign spores. S. ferreum is at least closely 

 related to S. areolatum, & European species occurring on Taxus, 

 and I have been inclined to regard it as not specifically distinct 

 from the latter, but we do not know yet that S. ferreum occurs 

 on Taxus or a related genus; if not a strictly tropical species but 

 a synonym of S. areolatum, the lack of a northern range in 

 eastern United States is at variance with species common to 

 Europe and North America. 



Specimens examined: 

 Cuba: C. Wright, 199, type (in Kew Herb.). 

 Jamaica: Cinchona, W. A. & E. L. Murrill, 1+58, comm. by 

 N. Y. Bot. Gard. Herb.; Sir John Peak, W. A. Murrill, 

 803, comm. by N. Y. Bot. Gard. Herb. 



64. S. cinerascens (Schw.) Massee, Linn. Soc. Bot. Jour. 27: 

 179. 1890. Plate 6, fig. 64. 



Thelephora cinerascens Schweinitz, Am. Phil. Soc. Trans. N. S. 

 4: 167. 1832. Hymenochaete cinerascens (Schw.) Leveille, Ann. 

 Sci. Nat. Bot. III. 5: 152. 1846;' Morgan, Cincinnati Soc. 

 Nat. Hist. Jour. 10: 197. 1888. Peniophora cinerescens (Schw.) 

 Sacc. in Sacc. Syll. Fung. 6: 646. 1888. P. Schweinitzii 

 Massee, Linn. Soc. Bot. Jour. 25: 145. 1889. Corticium as- 

 chistum Berkeley & Curtis, Am. Acad. Arts & Sci. Proc. 4: 123. 

 1858. Peniophora Berkeleyi Cooke, Grevillea 8: 20. pi. 122. 

 f. 4- 1879; Sacc. Syll. Fung. 6: 642. 1888; Massee, Linn. 

 Soc. Bot. Jour. 25:' 144. 1889. Stereum moricola Berkeley, 

 Grevillea 1: 162. 1873; Sacc. Syll. Fung. 6: 567. 1888. 

 Peniophora moricola (Berk.) Massee, Linn. Soc. Bot. Jour. 

 25: 141. 1889. Stereum dissitum Berkeley, Grevillea 1: 164. 

 1873. Peniophora dissita (Berk.) Cooke, Grevillea 8: 150. 

 1880; Sacc. Syll. Fung. 6: 645. .1888; Massee, Linn. Soc. 



