[Vol. 12 

 264 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



45. P. velutina (DC) Cooke, Grevillea 8: 21. pi 125, f. 15. 

 1879; Sacc. Syll. Fung. 6: 644. 1888; Massee, Linn. Soc. Bot. 

 Jour. 25: 152. 1889; Bourdot & Galzin, Soc. Myc. Fr. Bui. 28: 

 398. 1913; Rea, Brit. Basid. 692. 1922. 



Thelephora velutina De Candolle, Fl. Fr. 6: 33. 1815; Fries, 

 Elenchus Fung. 1: 203. 1828. — Corticium velutinum (DC) 

 Fries, Epicr. 561. 1838; Hym. Eur. 650. 1874. — Kneijffia velutina 

 (DC) Bresadola, Ann. Myc. 1 : 100. 1903. 



Fructifications broadly effused, membranaceous, separable, 

 becoming vinaceous buff to fawn color in the herbarium, minutely 

 velvety, the margin whitish, often extended in branching mycelial 

 strands; in section not colored, 250-500 [x thick, composed of 

 loosely interwoven hyphae up to 5-8 [i in diameter, not in- 

 crusted, only very rarely nodose-septate; cystidia incrusted, 

 40-100 X 8-15 (X, wholly immersed in the hymenial tissue or 

 protruding up to 50 [x; spores white in spore falls, even, 4)^-5 1^ X 

 2^-3 (X. 



Fructifications 3-20 cm. long, 2-15 cm. broad. 



On decaying limbs and logs of such frondose species as Fagus, 

 Quercus, Castanea, Populus, etc., more rarely on coniferous wood. 

 Throughout Canada and the United States and in Europe. May 

 to December. Frequent. 



P. velutina may be recognized by its large and rather thick 

 fructifications of pinkish or vinaceous color when dry, separable 

 from the substratum when moistened, by frequent presence of 

 marginal mycelial strands, and by the coarse, non-incrusted 

 hyphae — often up to 8 (x in diameter — present in sectional prep- 

 arations near the substratum. 



Specimens examined: 

 Sweden: L. Romell, 121, 133; Stockholm, L. Romell, 137. 

 Poland: Eichler, from Bresadola. 

 Austria: Tirol, V. Litschauer. 

 France: Cormatin, F. Guillemin, 10, in part; St. Priest, Allier, 



H. Bourdot, 20859. 

 Canada: J. Macoun, 231, comm. by W. G. Farlow (in Mo. Bot. 



Gard. Herb., 14763); Ontario, Casselman, J. Macoun, 366. 

 New Hampshire: Chocorua, W. G. Farlow, 71 (in Mo. Bot. 



Gard. Herb., 43973). 



