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THE THELEPHORACEAE OF NORTH AMERICA. XIV 1 



EDWARD ANGUS BURT 



Mycologist and Librarian to the Missouri Botanical Garden 

 Professor in the Henry Shaw School of Botany of 

 Washington University 



PENIOPHORA 



Peniophora Cooke, Grevillea 8: 20. pi. 122-125. 1879; Sacc. 

 Syll. Fung. 6: 640. 1888; Massee, Linn. Soc. Bot. Jour. 25: 

 140. pi. 47, f. 14-19. 1889; Karsten, Finska Vet.-Soc. Bidrag 

 Natur och Folk 48: 421. 1889; Engl. & Prantl, Nat. Pflanzen- 

 fam. (1 :1**) : 119. 1898; Bourdot & Galzin, Soc. Myc. Fr. Bui. 

 28: 372. 1913; Burt, Mo. Bot. Gard. Ann. 1: 191, 193, 198. 

 1914; Rea, Brit. Basid. 687. 1922. Kneiffia (in part) Bresadola, 

 Ann. Myc. 1: 99. 1903. includes Gloeopeniophora v. Hohnel 

 & Litschauer, K. Akad. Wiss. Wien Siteungsber. 116 : 815. 1907. 

 Includes in part Gloeocystidium Karsten, Finska Vet.-Soc. 

 Bidrag Natur och Folk 48 : 429. 1889. 



Fructifications waxy, coriaceous, cartilaginous, membrana- 

 ceous, submembranaceous, floccose, or filamentous, always re- 

 supinate, effused, even; simple basidia with 2-4 white spores; 

 cystidia incrusted or not incrusted, present in the hymenium and 

 often more or less immersed in the substance; substance variously 

 differentiated in some species but not containing colored, stellate 

 organs. Distinguished from Corticium by the presence of cys- 

 tidia. 



The North American species of Peniophora are here arranged in 

 five groups according to the color of the substance of the fructi- 

 fication, nature of the cystidia, and presence or absence of gloeo- 

 cystidia. These groups are further subdivided to such degree as 



1 Issued February 18, 1926. 

 Ann. Mo. Bot. Gard., Vol. 12, 1925 (213) 



