SPORES HYALINE. 



POLYPORUS RIGIDUS. This is close to Polyporus zonalis, same general 

 nature and surface. The cotype, a single specimen from Java, is at Paris. It differs 

 from zonalis in having pale pores, with only slightly ochraceous tissue when recent 

 and never dark as they are in Polyporus zonalis. Spores 4-6 mic., are a shade larger' 

 and the surface is not so strongly zoned. We collected Polyporus rigidus recently in 

 Florida, and Mr. Overholts recently sent, from Missouri, a form largely resupinate 

 with a narrow, renexed pileus. 



SPECIMENS. Florida. C. G. Lloyd; Missouri, L. O. Overholts; Java, J. P. Mousset Dr 

 van Leeuwen; Japan, A. Yasuda. 



Compare connexus, rugulosus, surinamensis. 



Polyporus Yoshinagai (cfr. Letter 54, Note 213) is a closely related plant from Japan reduced 

 to substipitate base, and classed in Section 15 Petaloides. 



POLYPORUS CONCRESCENS. This is scantily known from South America. 

 It is close to Polyporus zonalis, but pores and surface are reddish. Spores not found. 

 The types (although named by Montagne) we found only at Kew and Upsala. Poly- 

 porus microstomus and Polyporus evolutus are both the same, we think, and all three 

 are known only from scanty types. 



Compare evolutus, microstomus, nitidulus, stuposus. 



POLYPORUS RECURVATUS. Pileus thin, rigid, dimidiate, (3 x 5# cm). 

 Surface smooth, zonate, tawny olive. Context thin, pinkish buff. Pores minute, 

 round, concolorous. Spores not recorded, not found by me. 



A rare species of Brazil published by Rev. Thiessen in 1911. I know it only 

 from cotype material. 



POLYPORUS FARINOSUS Pileus rigid, thin, with acute edge. Surface 

 reddish brown, rugulose with innate scales. Context isabelline, firm, hard. Pores 

 minute, tissue and mouths concolorous with context. Spores not found. 



I know this only from a specimen named in mss. by Rev. Rick, Brazil. It has 

 an endorsement "odor farinae." The name farinosus is a duplicate, having been 

 used by Brefeld, but as no one else knows to what he refers, the name will not be 

 overworked if used the second time. 



POLYPORUS SEMILACCATUS. Pileus sessile, applanate, 

 thin (4-8 mm.), rigid. Surface smooth, brown, variegated with darker, 

 imperfect zones or blotches. Context firm, but punky, dark isabelline 

 (clay color). Pores minute (1-1/4 mm. long), darker than the context, 

 rigid. Spores not found. 



This is a frequent species in the East, absent from American 

 tropics. It is hardly well named, although the darker blotches have a 

 laccate effect. It was named by Berkeley as a form of zonalis, after- 

 ward put in "Fomes" by Cooke. Bresadola at first adopted this name, 

 and so endorsed the "type" of Polyporus rhodophaeus at Leiden (cfr. 

 Letter 36). Afterward he took Leveille's name. It is abundant in 

 Philippines, and quantities have been distributed under Berkeley's 

 name. 



SPECIMENS. Ceylon, T. Fetch; Japan, A. Yasuda, M. T. Yoshinaga; Philippines, E. D. 

 Merrill (seven collections). 



Compare cinereo-fuscus, rhodophaeus. 



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