336 Murrill : Polyporaceae of North America 



This species is found about old stumps and trunks during the 

 autumn. It has been collected three times in as many different 

 states. Morgan determined it as P. giganieus Pers., a European 

 species which it resembles in habit and coloring. His specimen 

 from Ohio is rather small and undeveloped. A still smaller plant, 

 only 4 cm. high, is in the Langlois collection from Louisiana. 

 The type plants of the species, however, were sent this year to 

 the New York Botanical Garden from Pennsylvania by Professor 

 D. R. Sumstine. They are large and well developed and show 

 both the immature and the mature hymenium in a highly satisfac- 

 tory manner. I take pleasure in dedicating the species to Pro- 

 fessor Sumstine. 



3. Grifola frondosa (Dicks.) S. F. Gray 



Boletus frondosus Dicks. Crypt. Brit. 1: 18. 17S5. 



Poly poms frondosus Fr. Syst. 1 : 355. 1 8 2 1 . 



Grifola frondosa S. F. Gray, Nat. Arr. Brit. PI. 1 : 643. 1821. 



Polypilus frondosus Karst. Rev. Myc. 3 : 17. 1881. 



This species is commonly found at the base of oak trees. It 

 is very large, intricately branched, fleshy to tough, and usually 

 grayish in color. It varies considerably and has several names. 

 The European and American forms do not appear to differ very 

 much, and I have also been unable to distinguish it in herbarium 

 material from such species as P. intybaceus and P. anax, the shape 

 of the spores being rather variable and uncertain in this group. 

 Quite a full description of the present species is given in the 

 Journal of Mycology for January, 1886. Exsiccati are very 

 abundant. Most European collectors have distributed it and it 

 has been reported from nearly every state in this country, c. g., 

 Iowa, Macbride, Fitzpatrick ; Ohio, Morgan, Lloyd ; District of 

 Columbia, James; Pennsylvania, Everhart ; Louisiana, Langlois ; 

 Canada, Deamcss. Atkinson, in his Studies of American Fungi, 

 discusses the species at length and gives two illustrations of it 

 from original photographs. 



4. Grifola ramosissima (Scop.) 



Boletus raiuosissiiuus Scop. Cam. ed. 2. 2 : 470. 1772. — Schaeff. 

 Fung. pi. in. 1763. 



