118 MURRILL : POLYPORACEAE OF NORTH AMERICA 



honey-yellow, i cm. thick ; tubes distinctly stratified, longer 

 behind, 0.5-1 cm. long each season, 6 to a mm., dull brown, 

 mouths polygonal, concolorous, edges obtuse, becoming thin ; 

 spores globose, rarely ovoid, thin-walled, smooth, hyaline, 3.5-5 

 //, hyphae ferruginous, cystidia none. 



Collected by Earle at the base of a living logwood tree in 

 Paradise, Jamaica, November, 1902. 



13. Pyropolyporus Langloisii sp. nov. 



A large thin expanded fungus with brown hymenium and a 

 brown or blackish surface. Pileus corky, fan-shaped, attached by 

 a narrow base, often depressed behind, 8-13 X 10-25 X 0.3-1.5 

 cm.; surface at first anoderm, soft, clothed with brown tomentum, 

 many times concentrically sulcate, at length glabrous, rough, in- 

 durate, black, marked with numerous shallow furrows ; margin 

 velvety, brown, thin, acute, undulate or slightly lobed : context 

 soft to corky, indurate in age, deep brown, 0.2-0.5 cm. thick; 

 tubes reviving, distinctly stratified, 0.2-0.5 cm. long each season, 

 9-8 to a mm., brown, mouths polygonal, concolorous, edges thin 

 at maturity : spores globose, smooth, hyaline, 3 fx, cystidia none. 



Collected in quantity several seasons in Louisiana by Langlois, 

 exclusively on dead or dying hawthorn trees near the base of the 

 trunk. Referred to P. pectmatus Kl., P. senex N. & M., P. con- 

 chatus Pers., and P. Ribis (Schum.) Fries by European mycologists, 

 from all of which it is quite distinct, probably approaching nearest 

 to the last. Several specimens from the various collections made 

 by Langlois are in the Underwood herbarium and the herbarium 

 of the New York Botanical Garden. 



14. Pyropolyporus Ribis (Schum.) 



Bolettis Ribis Schum. Enum. PI. Saell. 2: 336. 1803. 



Poly poms Ribis Fries, Syst. i: 375. 1821. 



Polyponis ribesius Vers. Myc. Eur. 2: 80. 1825. 



Po/jporus Ribis Fries ; Sturm, Deuts. Fl. 3: 137. //. 62. 1837. 



Pomes Ribis Gill. Champ. Fr. i : 685. 1878. 



According to some authorities P. Lonicerae Weinm. and P. 

 Euoiiymi Kalchb. are only forms of the above. Rabenhorst- 

 Winter, Fungi Europaei, no. 2937 ; Roumeguere, Fungi Gallic!, 

 no. 3304; De Thiimen, Myc. Univ., no. 509; Linhart, Fungi 



