Murrill: Polvporaceae of North America 417 



2. Hapalopilus sublilacinus (Ell. & Ev.) 

 Mucronoporus sublilacinus Ell. & Ev. Bull. Torrey Club, 27 : 50. 



1900. 



This species was collected by Langlois on pine logs in Louisi- 

 ana and very doubtfully and provisionally assigned to H. gilvus. 

 In some ways it does resemble that species, but it is larger, with 

 concentrically furrowed surface and long, lilac-colored tubes. The 

 spores are hyaline, but very distinct from those of H. gilvus. 



3. Hapalopilus licnoides (Mont.) 

 Polyporus licnoides Mont. PI. Cell. Cuba, 401. pi. 16. f. 2. 1842. 

 Polystictus licnoides Fr. Nov. Symb. 92. 185 1. 

 Polystictus subglaber Ell. & Macbr. Iowa Univ. Bull. Nat. Hist. 3 : 



193. 1896. 



This well-known fungus is exceedingly common in tropical 

 parts of America, occurring on dead wood of various kinds and 

 presenting a variety of forms according to locality and habitat. 

 The best early description of it is that made by Montagne. Fries 

 may have described the species under P. crocatus, but this is not 

 yet well determined. According to Romell, Polyporus xerophyl- 

 laceus Berk. (Hook. Jour. Bot. 8: 200. 1856), described from 

 Brazilian collections, is a synonym of the present species. Speci- 

 mens from Guadaloupe in the Paris herbarium are named Ponies 

 Khortalsii Lev., which latter is a Sumatran species. Young plants 

 collected in Nicaragua by C. L. Smith have recently received the 

 name Polystictus subglaber, said to differ from P. licnoides in having 

 smaller pores and no spines. Resupinate forms from the southern 

 states are usually known as P. crocatus, possibly because this 

 species was once so identified from South Carolina. 



In many ways H. licnoides and H. gilvus are strikingly alike 

 and approach very near to each other in some varieties, but they 

 are usually readily distinguished by the numerous concentric zones 

 which ornament the surface of the former species. Spores and 

 cystidia correspond closely. H. gilvus extends much farther north, 

 however, and is abundantly collected where H. licnoides is never 

 found. Among the numerous collections of this species examined 

 are the following: Jamaica, Undenvood, Earle ; Cuba, Underwood 

 & Parle; Mexico, Smith; Nicaragua, Smith; Louisiana, Langlois; 

 Florida, Martin, Calkins, Lloyd. 



