380 . Rev. M. J. Berkeley on Fungi 



agonal, ^th of an inch broad, extremely regular, marked on 

 the basal side with concentric lines. 



This very fine and striking species, of which unfortunately 

 the locality is unknown, resembles most a species gathered 

 by Schomburgk in Brazil, which I have, communicated to Dr. 

 Montagne under the name of H. variegata, but which is consi- 

 dered by him as a non-setose state of his Hexagona aculeata. 

 Both are entirely destitute of the strong fascicles of hairs or 

 bristles which are so remarkable in many species. 



32. Hexagona sericea, Fr. Polyporus sericeo-hirsutus, Kl. ! 

 in Linn. viii. p. 483. = Boletus villosus, Swartz! Prodr. p. 149; 

 Fl. Ind. Occ. p. 1933. 



The specimen in the Herbarium of the British Museum, 

 marked by Swartz himself, is exactly the plant of Klotzsch. 

 Fries however keeps the two distinct. 



33. Hexagona tenuis, Fr. = " Bol. Psidii" Kon. in Herb. 

 Mus. Brit. 



This species varies much in the size of the pores. It is 

 probable that the number of species in this genus, though 

 small, will hereafter be considerably reduced. 



34. Hydnum flavum, n. s. Pileo sessili suborbiculari con- 

 vexo tenui "pallide flavo" glaberrimo, hymenio pallido, acu- 

 leis brevissimis granulato-denticulatis. Peziza flava, Swtz. ! 

 Prod. p. 150; Fl. Ind. Occ. p. 1933. 



On wood. Jamaica, Swartz ! Herb. Mus. Brit. 



Pileus \\ inch long, nearly as much broad, suborbicular, 

 but involute when dry, stemless, attached by the apex, thin, 

 perfectly smooth and shining, of a bright orange-yellow when 

 dry, darker at the margin, which is very acute. Hymenium 

 pale ; aculei very short, subcylindrical, with a few acute granu- 

 liform processes at the apex. 



It gives me much pleasure to be able to clear up a very doubt- 

 ful species, which proves to be a very beautiful and interest- 

 ing Hydnum, The aculei are so minute as almost to justify 

 the association of the species with Grandinia. The genera of 

 Hymenomycetes at present are however so unsettled, that I 

 prefer placing it in Hydnum. Swartz described the smooth 

 outer surface of the pileus as the hymenium; it contains how- 

 ever no asci, and is most certainly the upper surface, as will 

 be seen by the figures. 



Plate X. fig. 8. a, Hydnum Jlavum, nat. size; b, section magnified; 

 c, a portion of the substance of the pileus highly magnified. 



35. Hydnum discolor, Fr. Pileo sessili carnoso convexo 

 laevi glabro pallido, aculeis cylindricis obtusis subulatisve 

 aequalibus ferrugineis. Hydnum agaricoides, Swartz ! Prodr. 

 p. 149 ; Fl. Ind. Occ. p. 1927- 



