1915] 



OVERHOLTS STUDIES IN THE POLYPORACEAE 709 



6. Polyporus galactinus Berk. 



Plate 24, figs. 12, 15, 17. 



Pileus more or less triangular in sections, sometimes gib- 

 bous behind, rather firm but watery, 3-8 X 5-10 X 1-3 cm., 

 white or yellowish, strigose-tomentose at the base, short 

 tomentose on the margin; context fibrous when fresh, hard 

 and sometimes resinous when dry, white, 0.3-2 cm. thick, 

 strongly zonate, with a strong fragrant odor in fresh speci- 

 mens; tubes 5-10 mm. long, the mouths white or yellowish, 

 minute, averaging 4-6 to a mm.; spores ellipsoid, smooth, 

 hyaline, once guttulate, minute, 3-4 X 2-3 y. ; cystidia none. 



On old logs in woods, especially in overflow river bottoms. 



Specimens examined: Mo. Bot. Gard. Herb. 4092, 43636 

 (Missouri), 4138.— Overholts Herb. 42, 489, 382, 134, 252, 2178, 

 511, 611, 583 (mostly from Ohio and Missouri). 



7. Polyporus fumidiceps Atkinson. Plate 23, fig. 6. 



Pileus thin, soft and watery when fresh, 1-4 X2-5 X 0.5-1 

 cm., vinaceous buff to avellaneous or wood-brown, minutely 

 pubescent or glabrous; context white, watery, with a strong 

 fragrant odor, 2-5 mm. thick; tubes 2-5 mm. long, sometimes 

 olive-green within on drying, the mouths concolorous, averag- 

 ing 4-5 to a mm.; spores ellipsoid to sub globose, smooth, hya- 

 line, 2.5-3.5 X 1.5-2.5 /x ; cystidia none. 



On dead wood of deciduous trees, especially willows, in 

 woods and along overflow river bottoms. 



Specimens examined: Mo. Bot. Gard. Herb. 43712 (Mis- 

 souri). — Burt Herb, (part of type collection, from New York). 

 Overholts Herb. 552, 2305, 2318 (Missouri). 



Polyporus lucidus Leyss. ex Fries, P. Tsugae Murr., P. 



Curtisii Berk., and Closely Related Species 



These species form a rather natural group of plants pos- 

 sessing the common character of a laccate or varnished pileus. 

 P. lucidus was described in 1780 by Leysser (as Boletus) from 

 plants collected in England. The description calls for a plant 

 with a lateral stipe and it is so figured by English mycolo- 



