1918] 
BURT—THELEPHORACEAE OF NORTH AMERICA. X 325 
11. H. tabacina Sowerby ex Léveillé, Ann. Sci. Nat. Bot. III. 
5 : 152. 1846; Cooke, Grevillea 8 : 145. 1880; басс. Syll. Fung. 
6:590. 1888; Massee, Linn. Soc. Bot. Jour. 27 : 112. 1890. 
Helvella nicotiana Bolton, Hist. Funguses, 174. pl. 174. 1789. 
—Auricularia tabacina Sowerby, British Fungi, pl. 25. 1797.— 
Thelephora tabacina (Sow.) Fries, Syst. Мус. 1: 437. 1821; 
Elenchus Fung. 1:173. 1828.—Stereum tabacinum (Sow.) 
Fries, Epier. 550. 1838; Hym. Eur. 641. 1874.—Thelephora 
avellana Fries, Syst. Мус. 1:442. 1821 (in part); Elenchus 
Fung. 1:188. 1828 (in part).—Stereum avellanum Fries, 
Epier. 551. 1838 (in part); Hym. Eur. 642. 1874 (in part). 
—Hymenochaete avellana (Fr.) Cooke, Grevillea 8 : 146. 1880; 
басс. Syll. Fung. 6 : 592. 1888; Massee, Linn. Soc. Bot. Jour. 
27 : 103. 1890.—T'helephora wmbricatula Schweinitz, Am. Phil. 
Soc. Trans. N. S. 4:166. 1832.—Hymenochaete imbricatula 
(Schw.) Léveillé, Ann. Sci. Nat. Bot. IIT. 5 : 152. 1846; Cooke, 
Grevillea 8 : 146. 1880; Massee, Linn. Soc. Bot. Jour. 27 : 103. 
1890.—H. imbricata басс. Syll. Fung. 6 : 593. 1888. 
Illustrations: Bolton, Hist. Funguses, pl. 174; Sowerby, 
British Fungi, pl. 25—type illustration. 
Fructifications coriaceous, effuso-reflexed, often imbricated, 
sometimes wholly resupinate, thin, sericeous, antique brown, 
at length becoming gla- 
brous and deep brownish 1 Moy 
drab, the margin and inter- ж Ж 
. 2211222222 
mediate layer orange-yel- 2222222 
——— 
——— ——— 
low; hymenium snuff- 2S 388s. 
brown to sepia, often Е 
deeply cracked where ге- 
supinate, with a series of 
radial anastomosing cracks Fig. 9 
for each centimeter of section. a br aga бы; 
b , a, ; System of radiating 
area; in structure 340—600 cracks in hymenium, г, X 43. See pl. 17, 
һ thick, with the setigerous p 
layer 100 д thick, and with the intermediate layer bor- 
dered on each side by a narrow, dark, dense zone; hyphae 
21-3 ріп diameter, orange-yellow, longitudinally arranged 
in the intermediate layer; setae 60-906-12 и, emerging up 
