108 NORTH AMERICAN FLORA [VoLuME 9 
acute, entire: spores globose or subglobose, thiu-walled, smooth, pale golden-yellow 
(probably darker in age), 5-7 x. 
TYPE LOCALITY: Port Antonio, Jamaica. 
HasitaT: Old stumps of Pstdrun. : 
DISTRIBUTION: Known only from the type locality. 
20. Pyropolyporus Robinsoniae Murrill, sp. nov. 
Pileus woody, dimidiate, applanate to compressed-ungulate, 5-7 X 7-10 < 15-3 cm., 
surface velvety, slightly encrusted, many times sulcate, very rough, tubercular, ferruginous 
to fulvous, corroded and darker with age; margin obtuse, velvety, ferruginous, sterile: 
context woody, fulvons, 3-5 mm. thick; tubes unevenly stratified, 3-5 mm. long each 
season, umbrinous within, mouths circular, minute, 4-5 to a mm., edges obtuse, entire; 
chestnut-brown, glistening: spores globose, smooth, hyaline, 4“; hyphae brown, 5#; 
cystidia none. 
Type collected on Monkey Hill, Jamaica, on decaying roots of a tree, July 11, 1904, Miss W. /. 
Robinson. 
DISTRIBUTION: Known only from the type locality. 
21. Pyropolyporus conchatus (Pers.) Murrill, Bull. Torrey 
Club 30: 117. 1903. 
Boletus salicinus Pers.; Gmel. Syst. Nat. 2: 1437. 1791. Not &. salictnus Bull. Herb. Fr. pl. 
433, f 1. 1789. 
Boletus conchatus Pers. Obs. Myc. 1: 24. 1796. 
Pileus woody, rigid, conchate, broadly effused and often entirely resupinate, 1-5 X 7-10 
x 0.5-1.5 cm.; surface rough, tomentose, irregularly sulcate, anoderm, brown to black, 
becoming thinly encrusted and slightly rimose with age; margin acute, undulate, fer- 
ruginous to fulvous, tomentose: context woody, thin, fulvous, 1-3 mm. thick; tubes indis- 
tinctly stratified, 1-2 mm. long each season, fulvous, mouths circular, 5-6 to a mm., edges 
obtuse, ferruginous to fulvous: spores globose, smooth, hyaline, 4-5 u; spines dark-brown, 
ventricose, 15~30 7-9; hyphae luteous, 2-2.5 4. 
TYPE LOCALITY: Europe. 
HasitTaT: On dead deciduous wood. 
DISTRIBUTION: Europe and North America. 
ILLUSTRATION : Fries, Ic. Hymen. p/. 185, f. 2. 
ExsIccaTI: Krieger, Fungi Sax. 8/9; Romell, Fungi Scand. 12; Thiim. Fungi Austr. 1006; 
Karst. Finl. Fungi 247; Roum. Fungi Sel. 5505, 6230, 7330 ; Ellis, N. Am. Fungi 978 ; Thiim. Myc. 
Univ. 510; Sydow, Myc. Mar. 7427; Shear, N. Y. Fungi 36. 
22. Pyropolyporus Baccharidis (Pat.) Murrill. 
Polyporus Baccharidis Pat. Bull. Soc. Myc. Fr. 9: 129. 1903. 
Pileus corky-woody, turbinate-conical, vertically attached, pendulous, 3-6 « 3-6 X 1-2 
em.; surface densely pectinate-sulcate, soft and velvety, flavous to cinnamon, becoming 
glabrous, blackish, and thinly encrusted; margin obtuse, flavous, tomentose, undulate: 
context corky, ferruginous-fulvous, 2-3 mm. thick; tubes evenly stratified, 2-3 mm. long 
each season, fulvous-cinnamon within, mouths circular, invisible to the unaided eye, 10 to 
amm., edges thin, entire, flavous-fuscous to chestnut-brown, slightly glistening : spores 
ovoid, smooth, hyaline, 6-7 X 4-5; cystidia none. 
TYPE LOCALITY: Rio Machangara, Cotocollao, Ecuador. 
HapgiraT: On trunks of Baccharis oblongifoha. 
DISTRIBUTION : Guadeloupe; also in Ecuador. 
23. Pyropolyporus Ribis (Schum. ) Murrill, Bull. Torrey 
Club 30: 118. 1903. 
Boletus Ribis Schum. Enum. Pl. Saell. 2: 336. 1803. 
Polyporus ribestus Pers. Myc. Eur. 2: 80. 1825. 
Pileus tough, corky, becoming rigid, conchate, laterally.connate, 3-5 X 5-10 X 0.7-1,5 
‘em.; surface rough, velvety, anoderm, indistinctly zoned, ferruginous to umbrinous, becom- 
