1916] 



BURT THELEPHORACEAE OF NORTH AMERICA VI 237 



hyphae pinkish buff under the microscope, thin- 

 walled, collapsing, not nodose-septate, very 

 loosely interwoven, 31/2-5/* in diameter ; basidia 

 clavate, 28 X 5/*, with 4 short sterigmata; 

 spores with a slight tinge of buff in collection 

 on slide but hyaline under the microscope, 



., , 1.1, ,1 ,T^H. zygodesmoides. 



ovoid, uneven to echmulate, the body 5-6 X Spore, hyphax640. 

 4-41/2/.. 



Fructifications 2-3 cm. long, 1-2 cm. broad. 



Under side of decaying pine logs. Quebec to New Jersey. 

 August to January. Eare. 



In this species a loose subiculum is present next to the 

 wood and bears on its surface a delicate hymenium, sug- 

 gesting in habit Corticium arachnoideum but colored. Hy- 

 pocJmus zygodesmoides is not as bright yellow as H, echinos- 

 porus and has paler spores than the latter and not globose. 



Specimens examined: 

 Exsiccati: Ellis, N". Am. Fungi, 715, under the name Thele- 



phora zygodesmoides. 

 Quebec: Ironsides, J. Macoun, 266. 

 Vermont: Middlebury, E. A. Burt. 

 New Jersey: Newfield, J. B. Ellis, type, in Ellis, N. Am. 



Fungi, 715. 



^ 28. H. echinosporus (Ellis) Burt, n. comb. 



Corticium echinosporum Ellis, Torr. Bot. Club Bui. 8:64. 

 1881; Sacc. Syll. Fung. 6:633. 1888; Wakefield, 

 Brit. Myc. Soc. Trans. 5 :129. 1915. 

 Type : in N. Y. Bot. Gard. Herb. 

 Fructification effused, membranaceous, separa- 

 ble, Naples-yellow to deep colonial buff, the mar- 

 gin concolorous, scanty, indeterminate; in struc- 

 ture 200/x thick, consisting of a thin, soft, hyme- 

 Fig. 28. nial membrane upon the loosely interwoven 

 Bpori^^^Hy- threads of the subiculum; hyphae concolorous 

 pha, spore (somctimcs hyaline under the microscope), thin- 

 walled, not nodose-septate, 3-4/a in diameter, lax, 

 very loosely interwoven, suberect, branching towards the 



