392 Rev. M. J. Berkeley on Exotic Fungi, 



zones, generally confined to the margin. Often quite rcsupi- 

 nate. Pores cinereous, perhaps tinged with violet when fresh. 

 Substance corky, dirty white. 



On Populus balsamifera. Carlton House. North America. 

 Dr. Richardson. 



42. P. (Apus. Ann. Coriacei) versicolor, Fr. Juan Fernan- 

 dez. Bertero, No. 1686, May 1830. An ochraceous variety. 

 This is not in Montagne's f Flora Fernandesiana.' 



43. P. (Apus. Ann. Cor.) pavonius, Hook, in Kunth. Syn. 

 vol. i. p. 10. sub Boleto. Coriaceo-membranaceous. Pileus 

 flabelliform, lobed, fusco-ochraceous, elegantly zoned, velvety ; 

 hymenium of the same colour as the pileus ; pores very mi- 

 nute, angular. Pileus 2 inches long and broad, very much 

 narrowed towards the base, very thin, spreading out from the 

 substipitiform vertex. 



New Granada. Humboldt. 



44. P. (Apus. Ann. Cor.) striatus, Hook. 1. c. p. 11. sub 

 Boleto. Small, subimbricated, coriaceo-membranaceous ; pi- 

 leus dark brown, zoned, radiato striate; pores cinereous, 

 brown, angular. Pileus ~ an inch broad. 



Near Loxa. Humboldt. A very curious and distinct species. 



45. P. (Apus. Ann.) abietinus, Fr. Isle a la Crosse. North 

 America. Dr. Richardson. 



46. P. (Apus. Ann. Coriacei) biformis, Fr. in litt. Pileus 

 effuso-reflexed, coriaceous, villous, white, zoned ; pores mid- 

 dle-sized, toothed, dirty white. Imbricated. Pileus 2 — 4 

 inches broad, 1—2 inches long. Pores irregular, sometimes 

 brown tinged with violet. 



On birch. North America. Dr. Richardson. 



ft. Populi balsamifercB. Pileus obsoletely villous, white; pores 

 rather large, brownish. Pileus constantly thicker at the base, 

 towards the margin void of pores. 



Isle a la Crosse. Dr. Richardson. Nearly allied to Pol. 

 abietinus. The pubescence sometimes vanishes in great mea- 

 sure, and it then resembles Pol. versicolor. 



47. P* (Apus. Ann. Cor.) laceratus, Berk. Effuso-reflexed, 

 thin, zoned, smooth, rugoso-striate, wood-coloured. Pores 

 rather large, angular, soon torn, brownish. Dissepiments thin, 

 toothed. Pileus 2 inches broad, § of an inch long, allied to 



