[Vor. 11 
10 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
1874; Sacc. Syll. Fung. 6: 667. 1888; Patouillard, Tab. Anal. 
Fung. 1: 113. f. 254. 1884.—Auriculariopsis ampla (Lév.) R. 
Maire, Soc. Myc. Fr. Bul. 18: Suppl. 102. pl. 3, f. 22. 1902; басс. 
Syll. Fung. 21: 423. 1912.—Stereum pubescens Burt, Mo. Bot. 
Gard. Ann. 7: 178. pl. 5. f. 560. 1920. 
Fructifications membranaceous, cup-shaped, sessile, white- 
tomentose, the margin entire, free all around; hymenium veined, 
fawn-color or bright brown; spores white, even, 6-10 x 3-4 y. 
Fructifications 3-10 mm. in diameter, reflexed 1-3 mm. 
On Salix. Montana and Wyoming. April and May. Rare. 
In Europe, this fungus is more frequent on Populus. I de- 
scribed the Montana gathering as Stereum pubescens with some 
misgivings. А more recent collection from Wyoming has finally 
enabled me to refer this species to Cytidia flocculenta, a reference 
which I have confirmed by specimens kindly communicated to 
me by Bourdot. Since C. flocculenta occurs in the United States 
on Salir, gatherings in the past may have been referred to 
the common Cytidia (Corticium) salicina, from which it differs 
in smaller, more heavily tomentose pilei and much shorter 
spores. 
Specimens examined: 
France: Allier, H. Bourdot, 4726, and two unnumbered specimens; 
Aveyron, А. Galzin, 13021, comm. by Н. Bourdot, 22632. 
Montana: Sheridan, Mrs. L. A. Fitch, in Ellis Collection, 7014, 
type of Stereum pubescens (in N. Y. Bot. Gard. Herb., and Mo. 
Bot. Gard. Herb., 56784). | 
Wyoming: Boulder. F. S. Wolpert, comm. by J. R. Weir, 9742 
(in Mo. Bot. Gard. Herb., 56222). 
a д salicina (Fries) Burt, n. comb. 
Thelephora salicina Fries, Syst. Myc. 1: 442. 1821.—Corticium 
salicinum Fries, Epicr. 558. 1838; Hym. Eur. 647. 1874; басс. 
Syll. Fung. 6: 605. 1888; Manas, Linn. Soc. Bot. Jour. 27: 118. 
pl. 6, f. 1. 1890.—Lomatia salicina (Fr.) Karsten, Finska Vet.- 
бос. Bidrag Natur och Folk 48: 404. 1889; Icones Hym. Fenniae, 
6. f. 10. 1885.—4An Cytidia rutilans (Pers.) Quelet in Rea, Brit. 
Basid. 698. 1922? - Plate 1, fig. 8. 
Type: authentic specimen from Fries in Kew Herb. 
