MYCOLOGIA 



Vol.X May, 1918 No. 3 



ILLUSTRATIONS OF FUNGI— XXVIII 



William A. Murrill 



All of the fungi represented on the accompanying plate are 

 polypores and most of them common species, occurring on dead 

 wood and aiding in the destruction of timber. Some of them 

 may attack living wood, especially when weakened from other 

 causes. The figures were drawn from fresh specimens by Miss 

 Eaton. . 



Pycnoporus cinnabarinus (Jacq.) P. Karst. 

 Trametes cinnabarina (Jacq.) Fries \ 

 Cinnabar-colored Pycnoporus 



Plate 6. Figure 1. X 1 



Pileus convex-plane, dimidiate, laterally extended, reviving the 

 second season, 4-6 X 5-10 X 0.5-1 cm. ; surface azonate, rugulose, 

 pruinose to tomentose, at length glabrous, the color changing from 

 light-orange to cinnabar-red, often fading with age ; margin acute, 

 except in large plants faintly zonate ; context floccose, elastic, 

 zonate, reddish ; tubes nearly equaling the context, firm, miniatous 

 within, the mouths small, 2-3 to a mm., regular, coccineous, dis- 

 sepiments rather thin, entire ; spores smooth, hyaline, 6-8 X 2-3 ju,. 



A highly-colored species occurring on dead wood of various 

 deciduous trees in the United States and Canada. It is not un- 

 usual to find it on old cherry logs in open fields. A thinner plant, 

 P. sanguineus, is one of our commonest tropical species. 



[Mycologia for March (10: 53-106) was issued April 4, 1918.] 



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