TRAMETES ABIETIS. Pilei thin, imbricate, often entirely 

 resupinate or with a reflexed border. The large daedaloid pores 

 (Fig. 609) and other characters are exactly as in Fomes pini, of which 

 I consider it only a thin form. It occurs in northern Europe, and has 

 been confused with Trametes piceina of the United States. Our 

 figure (610) can be taken to represent it. excepting as to size of pores. 



Specimens. Sweden, C. G. Lloyd. 



TRAMETES PICEINA (Fig. 610). Pileus thin, often imbri- 

 cate, woody, 1-2 inches broad, often resupinate with reflexed margin. 

 Surface tomentose, sulcate, zones, dark. Context Sudan brown. 

 Pores small, 3-4 to a mm., round, regular, appearing hiascent and ir- 

 regular when growing in an oblique position. Hymenium yellow 

 when fresh, becoming brownish. Setae numerous, slender. Spores 

 globose, 5-8 mic., hyaline. 



This is a frequent species on the spruce in our Northern States. 

 Von Schrenk records it on various coniferous trees (in addition to 

 spruce) and states that it causes a common and destructive disease 

 in our northern forests. He considers it same as Trametes Abietis of 

 Europe as a variety of Fomes pini, but our American plant with its 

 (usually) minute pores is well distinct and worthy of a separate name. 

 We have two collections, however, that have larger pores which 

 rather invalidate the argument. The plant was named by Peck as 

 Polyporus, afterwards changed to Trametes, and was compiled in 

 Saccardo as Polystictus (sic). 



Specimens. Many from H. D. House, State Botanist of New York, also several other collectors, 

 all from Canada or our Northern States. Mr. House sends also some cotype material. We have eighteen 

 collections, all with minute pores except two. 



SECTION 71. CONTEXT BROWN. SPORES COLORED. 

 SETAE PRESENT. 



FOMES ENDOTHEIUS. As this is exactly the same plant as Fomes rimosus, 

 excepting smoother crust, I had supposed the type of endotheius at Kew was the 

 same as Fomes rimosus, the surface not rimose, due to young condition of the spec- 

 imens. Additional specimens, however, from the Philippines indicate that the 

 surface does not become rimose, even when old. Hence Berkeley's species may 

 be maintained on this feature. As to context color, pores, spores, etc., it is exactly 

 the same as Fomes rimosus. It \vas discovered by Murrill to be a "new species," 

 and called Fomes Merrillii. 



FOMES FASTUOSUS. Specimens recently received Irom the Philippines 

 throw additional light on Fomes fastuosus (page 250) and Fomes pseudosenex 

 (p. 255). They both have same context and spores. The former has but one layer 

 of pores and context, is lighter, but in the latter the darker context may be due to 

 age. Fomes fastuosus may be a young condition of Fomes pseudosenex, but even 

 should that prove true we would prefer taking Murrill's name, as Leveille had no 

 definite idea in connection with his name and so-called three different species at 

 Paris. We hardly think Murrill's idea was much more definite, but still he was not 

 quite as bad as Leveille. 



ADDITIONAL SYNONYMS. 



Korthalsii, Java, Leveille. Type at Leiden is Polyporus sideroides (cfr. Letter 

 36). Leveille's naming at Paris, which is followed by Bresadola, is Fomes senex. 

 Also most of specimens so named from Philippines. 



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