TROPICAL POLYPORES 21 



4. TYROMYCES SMALLII Murrill 



Pileus compressed-ungulate, with a large umbo, broadly 

 sessile, dimidiate, fleshy-tough, difficult to dry, 5-7 X 6-10 

 X 2-5 cm.; surface very smooth, glabrous, azonate, white 

 to cremeous, changing to sordid-bay or blackish on drying; 

 context fleshy-tough, zonate, watery, moist and flexible even in 

 dried specimens, dull-white to sordid-avellaneous, tinged with 

 flesh-color, 0.5-2.5 cm. thick; tubes 5-8 mm. long, 3 to a mm., 

 rather large and irregular at times from the splitting of the dis- 

 sepiments, partially collapsed, somewhat fragile, dark-bay 

 throughout in dried specimens, edges thin, lacerate, fimbriate. 



Found a few times on pine trunks in Florida. 



5. TYROMYCES GRAMINICOLA Murrill, sp. nov. 



Hymenophore forming a large oblong cluster about 30 cm. 

 long, 15 cm. broad, and 10 cm. high, very irregular and lobed 

 by reason of its habitat, the lobes dimidiate, rather thin, uniting 

 behind into a thick substipitiform base; surface fleshy, soft, 

 uneven, glabrous, white, partly changing to yellowish or brown- 

 ish on drying; context thin, white, becoming spongy- fragile and 

 rose-tinted on drying; tubes fleshy, slender, angular, minute, 

 white, becoming brownish and collapsing on drying, the edges 

 very thin, becoming somewhat lacerate; spores subglobose, 

 smooth, hyaline, about 3/1. 



Type collected in a clump of grass (Sporobolus?) in open 

 loamy soil, near Harrington Sound, Bermuda, August 27- 

 September 21, 1912, Stewardson Brown & N. L. Britton 834 

 (herb. N. Y. Bot. Card.)- The fungus was evidently living on 

 the decaying grass roots, since no dead wood was present, 

 either above or beneath the ground. No other specimens of 

 this species have been collected. 



6. TYROMYCES VERSICUTIS (Berk. & Curt.) Murrill 



Pileus cespitose-imbricate, fleshy- tough, rigid when dry, 

 dimidiate, decurrent behind, 0.5-1. 5 X 3~4 X 0.2-0.4 cm.; surface 

 rugose or tuberculose, finely tomentose, resinous-guttate, ochrace- 

 ous to latericeous when dry; margin somewhat obtuse, sterile; 

 context fleshy to rigid, pallid, 2 mm. thick; tubes 1-2 mm. long, 

 pallid to umbrinous, mouths circular to slightly angular, minute, 

 6 to a mm., edges thin, subentire, pallid to umbrinous. 



Found a few times on dead wood in Cuba. 



