species and called it Hexagona Marcucciana. At Paris, where it can be 

 compared with Montagne s specimen, I doubt if one can be told from ;-hc oher 

 if they were transposed. I think Professor Maire has collected it in Greece 

 but I have seen none of his specimens. Hexagona nitida from what is known 

 seems to occur only on the live oak (Quercus Ilex) and only in the Mediterranean 

 countries There are several of Marcucci's collections in" the museums mostly 

 now badly eaten. The only good specimen I have seen is the Algerian col- 

 lection in Montagne s herbarium, from which our figure (290) has been made 



Fig. 291 

 Hexagona Gunnii. Co-type at Paris. 



HEXAGONA GUNXII (Fig. 291). Pileus ungulaform, with a 

 thin, fragile, smooth, reddish brown crust which appears to me slightly 

 laccate. Context thick, ferruginous. 17 Pores large, concolorous, with 

 thick walls. 



This species is represented at Kew by several collections from Tasmania 

 and Australia. I think it grows on Eucalyptus trees. Berkeley named it in 

 1839 as Polyporus vesparius, and then changed it (unfortunately without Otto 

 Kuntze's consent) to Hexagona Gunnii. 18 



HEXAGONA SULCATA (Fig. 292). Pileus subligneous, with 

 a hard crust and deep, sulcate ridges. Context ferruginous. Pores 

 medium (4-5 to cm.) deep, rigid, pale wood color. 



18 This was in "Erbario Crittogamico Italiano," where Marcucci's collection was again 



distributed. The advertisement is given in Saccardo as "Bagl. & de Not," but they were 



both lichen men. I suspect Cesati was really responsible for it, as he seems to have been 

 the chief fungus man of these exsiccatae. 



11 1 think this is the only species known with a strong development of the context. Usu- 

 ally the pores almost reach the crust. 



18 I do not know why Berkeley changed the specific name when he put it in Hexagona, 

 but he no doubt had good reasons for it, and he thought he had the right. At any rate it 

 was before our "lawmakers" had legislated on the subject as to what a man has a right to 

 do in his own private affairs. 



