THE THELEPHORACEAE OF NORTH AMERICA. Villi 



CONIOPHORA 



EDWARD ANGUS BURT 



Mycologist and Lihrarimi to the Missouri Botanical Garden 



Associate Professor in the Henry Shaio School of Botany of 



Washington University 



CONIOPHORA 



Coniophora De Candolle, Fl. Fr. 6 : 34. 1815 ; Persoon, Myc. 

 Eur. 1 : 153. 1822 ; Karsten, Rev. Myc. 3 : 23. 1881 ; Finska 

 Vet.-Soc. Bidrag Natur och Folk 37 : 159. 1882; Sacc. Syll. 

 Fung. 6:647. 1888; Massee, Linn. Soc. Bot. Jour. 25:128. 

 1889; Schroeter, Krypt.-Fl. Schlesien 3 : 430. 1888; Engl. & 

 Prantl, Nat. Pflanzenfam. I.l** : 120. 1898. Coniophora as a 

 subgenus of Corticium Fries, Hym. Eur. 657. 1874; Cooke, 

 Grevillea 8 : 88. 1880. Coniophorella Karsten, Finl. Basidsv. 

 438. 1889; Bresadola, Ann. Myc. 1:110. 1903. 



Fructifications resupinate, effused, fleshy, subcoriaceous 

 or membranaceous; hymenium somewhat undulate-tuber- 

 cular, granular, or even, usually pulverulent with the spores ; 

 cystidia present in some species ; basidia simple ; spores even, 

 ochraceous, sometimes nearly colorless. 



Coniophora is closely connected on one side with Corticium 

 and Peniophora by such pale-spored species as Coniophora 

 polyporoidea, on another side with the colored-spored sec- 

 tion of Merulius, and on still another with Grcmdinia by sev- 

 eral species with granular or minute papillae in the 

 hymenium, although the spores of Coniophora are colored, 

 while those of Grandinia are white. 



Fully developed, mature fructifications of Merulius have 

 the hymenial surface more or less reticulate with obtuse folds, 

 imperfectly porose, or obsoletely toothed, while the departure 

 from the even hymenial surface in Coniophora is at the most 

 only undulate-tubercular or granular. Since some species 



Note. Explanation in regard to the citation of specimens studied is given 

 in Part VI, Ann. Mo. Bot. Gard. 3: 208, footnote. The technical color terms U8e<l 

 in this work are those of Ridgway, Color Standards and Nomenclature. Wash- 

 ington, D. C, 1912. 



^ Issued September 20, 1917. 



Ann. Mo. Bot. Gard., Vol. 4, 1917 (237) 



