176 



Mycologia 



yellow, often connected with long, branching, rhizomorphic 

 strands ; context membranous, white or yellowish, varying in 

 thickness ; hymenium appearing in patches, becoming continuous 

 and somewhat abnormally vesiculose, uneven, not glistening, 

 bright-orange-yellow when fresh ; tubes large, irregular, angular, 

 1-3 mm. long, 1-2 to a mm., edges thin, collapsing and becoming 

 lacerate with age; spores ellipsoid, smooth, hyaline, copious, about 

 5 X2.5/1. 



Type collected on decayed pine bark and leaves at Biloxi, Mis- 

 sissippi, September 6, 1904, Mrs. F. S. Earlc 40. 



What apears to be a form of the same thing was collected on 

 the under side of pine chips at Auburn, Alabama, January, 1896, 

 by L. M. Underwood. The mycelium was yellow when fresh, 

 widely creeping, the smaller strands whitish ; subiculum cottony- 

 flocculent, yellowish, forming at first irregular, thin- walled tubes 

 without the development of any further context ; mature tubes 

 irregularly labyrinthiform, deep-golden-yellow, 1-2 to* a mm., 

 edges entire, soft when fresh. The spores are ellipsoid, tapering 

 obliquely at one end, smooth, hyaline, copious, 6-7 X 3-4 ', no 

 cystidia seen. The mature tubes look quite different from those 

 in Airs. Earle's specimens, which latter are rather vesiculose and 

 abnormal. 



This species differs from Poria subacida in its bright-orange- 

 yellow color, larger tubes, broad margin, and conspicuous rhizo- 

 morphic strands. One would naturally think of Poria xantha 

 Pers. in this connection ; but South Carolina specimens so named 

 sent to Upsala by Berkeley are only the yellow form of Poria 

 medullapanis. The description of Poria vitcllina seems to fit the 

 plant fairly well, but Schweinitz' types are very distinct. Under- 

 wood determined his specimens as Poria chrysoloma Fries, a 

 species confined to Europe so far as I know. 



87. Poria flavilutea sp. nov. 



Effused for several centimeters, continuous, inseparable, about 

 1 mm. thick ; margin at first conspicuous, byssoid, thin, appressed, 

 white, becoming inconspicuous with age; context white, scarcely 

 apparent in age; hymenium even, regular, scarcely glistening, 

 flavo-luteous in dried specimens ; tubes angular, quite regular ex- 



