Murrill: Polyporaceae of North America 651 



known of the species. Two collections made by Ellis in New 

 York n^atch the types at Kew. The pileus is orbicular to dimi- 

 diate, tl^in, coriaceous, concave beneath, with acute margin and 

 villose, zonate surface. The tubes are unequal, of medium size, 

 a millimeter or more in length, with acute, dentate dissepiments, 

 which become pale fuscous with age. There is little to distinguish 

 it from forms of C. hirsutus. 



F 



19. CORTOLUS PINSITUS (Fr.) Pat 



Poly poms pinsitiis Fr. Elench. Fung. 95. 1828. 



Polystictiis umbonatus Fr. Nov. Symb. 87. 185 i. 



Coriolns pinsitjts Pat. Tax. Hymen, 94. 1900. 



Collected by Lund on trunks of trees in Brazil and described 

 as follows : 



**Coriaceo-n>einbranaceus, tenax, pileis hirtis concentrice sulcatis unicoloribus 

 cinereis, poris curtis majusculis angulatis acutis inaequalibus albis.'* 



Later described as Polysticttis tmibonattis from Liebmann's Mexi- 

 can collections on account of the dark pores seen in these speci- 

 mens. The hymenium varies from white to purple and smoke- 

 colored in ^ way calculated to puzzle anyone not accustomed to 

 its changes. Some specimens are half white and half dark 

 beneath. 



Few species are more abundant than this in tropical America. 

 It may be found on dead wood of various forms and kinds, such as 

 sticks, stumps and logs of bamboo, logwood, cocoanut, etc., 

 throughout the West Indies and the warmer parts of Central and 

 South America. The following list includes numbers of specimens 

 recently added to the New York Botanical Garden herbarium : 



Bolivia, Rjtsby ; Ecuador, L agerhcim ; Brazil, Htnschcn, 

 Lttnd ; Venezuela, Gaillard ; Nicaragua, Smith; Mexico, Lieh- 

 mann, Smith ; Cuba, Wright, Earle, Wilson, Murrill, Underwood 

 & Earle my, 1482, 1503, ijog, 1517, Britton & Shafcr ^dg, 

 473 y SS^, 774-; Jamaica, Earle 95, tjj, 135, 140, isgb, 231 ; 

 Porto Rico, Goll, Earle 22, 43; New Providence, E. G. Britton 

 722 ; Southern Florida, E. G. Britton 463, Small & Carter 1331. 



20. Coriolus sericeohirsutus (Kl.) 



Poly poms sericeo-hirsntus Kl. Linnaea 8 : 483. 1833, 

 Hexagona sericea Fn Epicr. 497. 1838. 



