TROPICAL POLYPORES n 



margin thin, narrowly sterile, undulate or slightly lobed; context 

 punky-fibrous, pallid, 1-3 mm. thick; tubes pale-roseous within, 

 2-3 mm. long, very even and regular, mouths slightly angular, 

 5-6 to a mm., edges thin, slightly dentate, tough, firm, white or 

 rose-tinted when young, becoming avellaneous-roseous at 

 maturity, fading in herbarium specimens. 



Common throughout on dead wood, and readily recognized 

 by its beautiful rosy tints. 



12. CORIOLUS HAEDINUS (Berk.) Pat. 



Pileus very thin and very flexible, almost as thin as paper at 

 times, dimidiate to circular, according to its relation to the sub- 

 stratum, applanate or conchate, laterally connate, decurrent, 

 1-2 X 2-3 X 0.02-0.05 cm.; surface white to slightly yellowish, 

 densely concentrically furrowed, slightly spongy between the 

 furrows, glabrous; margin thin, undulate to lobed, fertile; con- 

 text white, membranous; tubes short, less than I mm. long, 

 mouths angular, nearly regular, 4-5 to a mm., with a tendency 

 to appear much elongated radially by the partial separation of 

 the transverse walls, edges very thin, fimbriate-dentate. 



Occasional on dead wood in Cuba and Porto Rico, as well as 

 in Brazil. 



13. CORIOLUS SUBSTIPITATUS Murrill 



Pileus flabelliform, attached by a short tubercle, applanate, 

 rather thin, flexible, of very light weight, 4 X 5-7 X 0.2-0.3 cm.; 

 surface milk-white, opaque, glabrous, somewhat uneven, espe- 

 cially behind, faintly zonate in front; margin acute, concolorous, 

 entire to slightly lobed; context thin, soft, punky, milk-white, 

 i mm. thick; tubes 1-1.5 mm. long, white within, firm and elastic, 

 glistening, mouths circular to angular, very regular, 6-7 to a 

 mm., edges thin, entire, white, becoming denticulate with age, 

 slightly yellowish in dried specimens; spores globose, 3.5/1- 



Found once near Port Antonio, Jamaica, on a log in woods. 



14. CORIOLUS HONDURENSIS Murrill 



Pileus very thin, slightly flexible, conchate-reniform, sessile, 

 7 X 9 X 0.2-0.3 cm.; surface radiate-rugose, glabrous, sub- 

 shining, white to pale-cinereous, with a few very narrow, slightly 

 darker, concentric lines; margin thin, white, lobed, inflexed on 

 drying; context very thin, white, fibrous, less than i mm. thick; 

 tubes 2-3 mm. long, slender, white to pale-isabelline within, 

 mouths minute, angular, regular, glistening, 7-8 to a mm., 



