84 



Mycologia 



differing from the margin, sometimes almost disappearing with 

 age; hymenium uneven, owing to the inequalities of the sub- 

 stratum, white to yellowish or dirty-white, umbrinous in old and 

 dried specimens; tubes oblique, appearing in patches, at first 

 short, angular, thin-walled, irregular in shape and size, 2-3 to a 

 mm., becoming 3 mm. in length, with long, lacerate dissepiments, 

 soon discoloring, weathering, and falling away with age; spores 

 copious, subglobose to ovoid, smooth, pale-umbrinous under the 

 microscope, 4-6^ long; cystidia none. 



Type collected on a wet palm stump at Constant Spring Hotel, 

 near Kingston, Jamaica, December 13, 1908, W. A. & Edna L. 

 Murrill 41. It is rather surprising to find dark-colored spores 

 on a plant of this character, but this accounts for the tubes be- 

 coming umbrinous with age. 



9. Poria lacticolor sp. nov. 



Irregularly effused for several centimeters, becoming continu- 

 ous, inseparable, very thin ; margin conspicuous, pure-white, un- 

 changing, very thin, delicate ; context white, a mere membrane ; 

 humenium even, pure- white, unchanging with age or on drying; 

 tubes oblique, angular, thin-walled, short, 4 to a mm., concolorous 

 within, with long, toothed dissepiments ; spores not found. 



Type collected on a dead log in a virgin forest at Ciego de 

 Avila, Puerto Principe Province, Cuba, March 21, 1905, F. S. 

 Earle & W. A. Murrill 636. Also collected on rotten wood at 

 Belmont, St. George's, Grenada, September 22, 1095, Broadway. 

 This species somewhat resembles a coating of whitewash with 

 fine lines in it made by the brush. 



10. Poria niveicolor sp. nov. 



Occurring in small, irregular patches about 3 cm. in diameter, 

 inseparable, thin ; margin conspicuous, thin, pure-white, cottony, 

 rarely connected with rhizomorphic strands, becoming somewhat 

 elevated with age or on drying ; context thin, white, similar to 

 the margin; hymenium quite even, becoming continuous, snow- 

 white when fresh, with a very faint rosy-avellaneous tint in dried 

 specimens ; tubes very short, regular, angular, thin-walled, entire, 

 5 to a mm. ; spores hyaline. 



Type collected on well-rotted wood in Troy and Tyre, Cockpit 



