[Vol. 12 

 308 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Massee, Linn. Soc. Bot. Jour. 25: 147. Jl. 1889; Sacc. Syll. 

 Fung. 9: 241. 1891; Bourdot & Galzin, Soc. Myc. Fr. Bui. 

 28: 404. 1913; Rea, Brit. Basid. 694. 1922. 



Thelephora incarnata Persoon, Syn. Fung. 573. 1801; Myc. 

 Eur. 1 : 130. 1822 (Corticium) ; Fries, Syst. Myc. 1 : 444. 1821 ; 

 Elenchus Fung. 1: 219. 1828. Corticium incarnatum (Pers.) 

 Fries, Epicr. 564. 1838; Hym. Eur. 654. 1874; Berkeley, 

 Brit. Fung. 275. 1860; Berk. & Curtis, Grevillea 2: 4. 1873; 

 Peck, N. Y. State Mus. Rept. 24: 80. 1872; Morgan, Cin- 

 cinnati Soc. Nat. Hist. Jour. 10: 201. 1888; Sacc. Syll. Fung. 6: 

 625. 1888. Kneiffia incarnata (Pers.) Bresadola, Ann. Myc. 1 : 

 103. 1903. Gloeopeniophora incarnata (Pers.) v. Hohnel & 

 Litschauer, K. Akad. Wiss. Wien Sitzungsber. 116:816. 1907. 

 Peniophora aemulans Karsten, Finska Vet-Soc. Bidrag Natur och 

 Folk 48: 425. 1889; Sacc. Syll. Fung. 9: 239. 1891. 



Fructifications effused, closely adnate, drying pinkish cinnamon 

 to warm buff, cracking, the margin sometimes paler, thinning 

 out; in section 100-250 ;x thick, not colored, composed of hyaline, 

 thin-walled hyphae 2-3 y. in diameter, densely interwoven along 

 the substratum and then becoming suberect and extending be- 

 tween more or less numerous gloeocystidia and some cystidia; 

 gloeocystidia sometimes broadly ovoid, 30-45 X 10-15 \l, usu- 

 ally more cylindric and narrower, 30-60 X 6-10 [i; cystidia be- 

 coming incrusted, 30-45 X 6-10 \l, rarely protruding beyond 

 the basidia; basidia with 4 sterigmata; spores hyaline, even, 

 cylindric, flattened on one side, 6-10 X 3-4 Yi V 



Fructifications 2-10 cm. long, 1-2 cm. broad, sometimes in 

 scattered, small, tubercular growths 2-5 mm. in diameter on 

 lenticels of small limbs. 



On wood and bark of fallen limbs of frondose species usually. 

 Europe, Canada to Alabama, and westward to the Pacific states, 

 and in Japan. Throughout the year. Common. 



P. incarnata is recognizable by its closely adnate, reddish 

 fructifications, spores 6-9 X 3-4 \l, and abundant gloeocystidia. 

 Sometimes one has to search several sections before finding an 

 incrusted cystidium. The spores run slightly smaller in most 

 American gatherings than in the fewer European specimens which 

 I have seen and are with us usually only about 6-8 X 3 [i. 



