[Vol. 12 

 326 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



P. carnosa may be recognized at sight by its large, thick, 



yellow fructifications occurring on coniferous logs in forests of 



the White Mountains, Adirondacks, and the Rocky Mountains. 



The abundant cystidia are too small to be visible with a lens, 



hence it is necessary to examine sections with a microscope to 



recognize the species as a Peniophora rather than a Corticium. 



It does not have the mustard-yellow subiculum of P. sulphurina 



nor does its hymenial layer flake away from the substratum as in 



the latter. 



Specimens examined: 



Maine: Piscataquis County, W. A. Murrill, 2311 (in N. Y. Bot. 

 Gard. Herb., and Mo. Bot. Gard. Herb., 61596). 



New Hampshire: Chocorua, E. A. Burt; Intervale, L. 0. Over- 

 holts, 5039 (in Mo. Bot. Gard. Herb., 56351); North Conway, 

 L. 0. Overholts, 4732 (in Mo. Bot. Gard. Herb., 56117). 



New York: Hague, C. H. Peck, type (in Burt Herb., N. Y. State 

 Mus. Herb., and Mo. Bot. Gard. Herb., 56019); North Elba, 

 C. H. Kauffman, 4 (in Mo. Bot. Gard. Herb., 21307). 



Minnesota: Cass Lake, J. R. Weir, 392 (in Mo. Bot. Gard. Herb., 

 12436). 



Montana: Fortine, E. E. Hubert, comm. by J. R. Weir, 12013 (in 

 Mo. Bot. Gard. Herb., 63323) ; Missoula, J. R. Weir, 383 (in 

 Mo. Bot. Gard. Herb., 20892). 



Idaho: Meadow Creek, E. E. Hubert, comm. by J. R. Weir, 

 11669, 11671 (in Mo. Bot. Gard. Herb., 63308, 63310); Priest 

 River, E. E. Hubert, comm. by J. R. Weir, 11738 (in Mo. Bot. 

 Gard. Herb., 63311), J. R. Weir, 355, 9100 (m Mo. Bot. Gard. 

 Herb., 10883, 55955), and 26, 32, 51, 57, 62, 69. 



British Columbia: Kootenai Mts, near Salmo, /. R. Weir, 4^0, 

 458, 464, 467, 468, 469, 479, 523, 530 (in Mo. Bot. Gard. Herb., 

 8767, 9121, 12613, 12287, 8766, 12534, 12907, 20976, and 16078 

 respectively). 



Washington: Olympia, C. J. Humphrey, 6291. 



New Mexico: Cienega Canyon, W.H.Long, 21470, 21515, 21561 

 (in Mo. Bot. Gard. Herb., 55148, 55149, 55150); Sulphur 

 Canyon, W. H. Long, 21411 (in Mo. Bot. Gard. Herb., 55147); 

 Tyom Experiment Station, W. H. Long, 21935 (in Mo. Bot. 

 Gard. Herb., 55151). 



