118 MurRILL: POLYPORACEAE OF NorTH AMERICA 
honey-yellow, 1 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 
p, 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 anda 
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, 
g-8 to a mm., brown, mouths polygonal, concolorous, edges thin 
at maturity: spores globose, smooth, hyaline, 3 », 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. pectinatus K)., 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. ) 
Boletus Ribis Schum. Enum. Pl. Saell. 2: 336. 1803. 
Folyporus Ribis Fries, Syst. 1: 375. 1821. 
Polyporus ribesius Pers. Myc. Eur. 2: 80. 1825. 
Polyporus Ribis Fries ; Sturm, Deuts. Fl. 3: 137. p/. 62. 1837. 
Fomes kibis Gill. Champ. Fr. 1: 685. 1878. 
According to some authorities P. Lonicerae Weinm. and P. 
Euonymt Kalchb. are only forms of the above. Rabenhorst- 
Winter, Fungi Europaei, no. 2937; Roumeguére, Fungi Gallici, 
no. 3304; De Thiimen, Myc. Univ., no. 509; Linhart, Fungi 
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