406 Murrill: Additional Philippine Polyporaceae 



Tyromyces Merrittii Murrill, sp. nov. 



Pileus imbricate-multiplex, the lobes few in number and at- 

 tached together in a prolonged stipitiform base, each lobe flabelli- 

 form, with cuneate base, 7-9 x 7-9 X 0.5 cm.; surface radiate- 

 rugose and roughened with prominences of various sizes, sordid 

 white, opaque, very minutely tomentose ; margin irregular, vari- 

 ously lobed, rather thick, fertile, slightly deflexed : context fleshy- 

 fibrous, very brittle when dry, milk-white, 2 mm. thick ; tubes 3 

 mm. long, slender, nearly white within, mouths grayish-white, 

 glistening, discolored in places, regular, thin-walled, 3 to a mm., 

 edges firm, entire : spores ovoid, curved, smooth, hyaline, 5-6 X 3 /^ ; 

 hyphae very fragile, hyaline, 4-5 /^ ; cystidia none. 



Type collected on dead wood on Mt. Maquiling, Batangas 

 Province, Luzon, November, 1907, by H. M. Curran and M. L. 

 Merritt, {8gjg). 



Tyromyces subchioneus Murrill, sp. nov. 



Pileus* sessile, dimidiate, applanate, fleshy-tough to fragile, 

 2 X 4 X 0.2 cm.; surface smooth, glabrous, grayish isabelline, 

 wrinkled when dry ; margin entire, thin, sterile and abruptly de- 

 flexed : context white, homogeneous, fragile, i mm. thick when 

 dry ; tubes very distinct from the context in color, dark yellowish 

 gray within, i mm. long, mouths subcircular, regular, grayish, 

 glistening, 5-6 to a mm., edges entire, thick at first, becoming 

 thinner at maturity : spores oblong, ellipsoid, smooth, hyaline, 

 5_6 X 2 n; hyphae hyaline, 3-4 // ; cystidia none. 



Type collected on dead wood on Mt. Apo, 2160 m., Davao, 

 Mindanao, April 20, 1904, by E. B. Copeland, 1074. 



Tyromyces unguliformis Murrill, sp. nov. 



Pileus compressed-ungulate, plane below, much thicker be- 

 hind, 5 X 8 X 1-3 cm.; surface anoderm, azonate, somewhat tuber- 

 culose, nearly glabrous, milk-white, opaque ; margin abruptly 

 acute, narrowly sterile, concolorous, entire : context white, fragile 

 when dry, homogeneous, 5-8 mm. thick ; tubes white or yellow- 

 ish within, I cm. long behind, gradually shorter towards the mar- 

 gin, slender, mouths circular, regular, 4 to a mm., somewhat glist- 

 ening, white with a silvery sheen, edges thick, entire : spores 

 smooth, ovoid, hyaline, 3x2//; hyphae hyaline, 3 (j. ; cystidia 

 none. 



Type collected on dead wood on Balabac Island, March-April, 



1906, by L. Mangubat, {333). 



