PALLIDUS TRAMETES. 



ability. It is better to assume that Berkeley's New Zealand speci- 

 men was the sanie as the Indian specimen, rather than discover it to 

 be a "new species," as Murrill did. 



Trametes plebeia appears to be rare. At Kew there is only the 

 Indian collection, but it has been found again recently in the Phil- 

 ippines (Copeland, 182), and good specimens distributed. Berkeley 

 referred habitually to Trametes plebeia var. cubensis a common 

 plant (Polyporus supinus) of American tropics, which is not a variety 

 and has no analogy to it. 



SPECIMENS. Philippines, E. D. Merrill. 

 Compare luzonensis. 



Femes roseiporus with pink pores and white context. See in subsection 55. 



2ND GENERAL DIVISION, DEPALLENS. 



SECTION 64. PORES DARKER THAN THE CONTEXT, USUALLY 

 PALING OUT IN OLD SPECIMENS. 



The plants grouped under this head have a closer relationship than is generally 

 supposed. A marked difference is in the color of the pores and context, not found in 

 any other section. Spores are all globose. The bright color of the fresh pores fades 

 in old specimens, which is also a character common to all. 



FOMES ULMARIUS. Pileus ungulate or applanate, but more 

 often forming irregular masses, usually growing at base of the trees. 

 Surface at first white, dark in old specimens, with no distinct crust. 

 Context at first white, changing in old herbarium specimens to yellow. 

 Pores, when fresh, bright orange, drying chestnut red. Spores large, 

 globose, hyaline, smooth, with thick walls measuring 8 mic. in diam- 

 eter. 



Fomes ulmarius is a frequent plant in Europe, growing on the 

 elms and probably causing the hollow trees. Mrs. Hussey gives an 

 excellent figure and account of it. It has not been found in the United 

 States, unless the next species is the same thing. I have it from 

 Japan. 



I am convinced that historically Fomes ulmarius should be called 

 Fomes fraxineus, as the coloration of Bulliard's figure on which 

 fraxineus was based represents Fomes ulmarius, not Fomes fraxineus 

 as it is known to-day. (See remarks under Fomes fraxineus.) 



ILLUSTRATIONS. Mrs. Hussey PI. 64 (the best); Bulliard, t. 433, f. 2 (the type figure of 

 I'omes fraxineus, but it represents Fomes ulmarius); Berkeley's Outlines, t. 16, f. 5 (poor); Lucand, 

 t. 200 (pores inaccurate). Sowerby, t. 88 (coloration ot pores not good). 



Compare incanus. 



FOMES GEOTROPUS. This is the tropical form of Fomes ulmarius, and 

 probably the same species. It differs when fresh in the more yellowish pores, and 

 when dry in the more rugulose surface. I think, however, it is practically the same 

 thing. It occurs in tropical America, and is quite frequent in our Southern States, 

 growing on various hosts, and particularly the cypress. In fact, it is supposed that 



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