[Vol. 3 

 238 ANNALS OF THE MISSOUKI BOTANICAL GARDEN 



outer end to form a membranous hymenium; no cystidia; 

 basidia with 4 sterigmata; spores concolorous (sometimes 

 hyaline under the microscope), globose, echinulate, the body 

 4r-6fi in diameter. 



Fructification 2-4 cm. long, 1-2 cm. broad. 



On rotting pine wood and bark. Canada to Louisiana and 

 in Oregon; occurs in Sweden also. August to December. 



The distinguishing characters of H. echinosportis are its 

 bright yellow fructifications of somewhat a straw-colored 

 yellow, with hyphae and globose echinulate spores of the 

 same color. Under the microscope this tint of yellow is 

 not very intense and may be unnoticed, and regarded as 

 hyaline. Bresadola^ regards Corticium echinosporum as a 

 synonym of H, pellicula Fr. {=Corticium mollis var pel- 

 licula Fr.). The specimen which Karsten has communicated 

 to me as Corticium pellicula Fr. has even spores and in- 

 crusted hyphae and is a true Corticium. It seems best to 

 regard H. ecJiinosporus as valid until there is found an 

 earlier name supported by an authentic specimen. It is only 

 rarely possible to recognize resupinate species of the higher 

 fungi from the descriptions alone of the earlier mycologists. 



Specimens examined: 

 Exsiccati: Ellis, N. Am. Fungi, 608, under the name Corti- 

 cium echinosporum,. 

 Sweden: Stockholm, L. Romell, 154. 

 Quebec: Hull, J. Macoun, 385. 

 Ontario : Ottawa, J. MacouM, 668. 

 New York: Freeville, G. F. Atkinson, Bot. Dept. Cornell 



Univ., 3277; Ithaca, G. F. Atkinson, 22762. 

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



608. 

 Louisiana: Abita Springs, A. B. Langlois, 2638. 

 Oregon: Corvallis, W. A. Murrill, N. Y. Bot. Gard., Fungi 



of Oregon, 921, 922 (in N. Y. Bot. Gard. Herb, and in 



Mo. Bot. Gard. Herb., 5690 and 8937). 



29. H. fibrillosus, Burt, n. sp. 

 Type: in Burt Herb. 



^Ann. Myc. 1:107. 1903. 



