Rev. M. J. Berkeley on Exotic Fungi, 387 



ning, densely imbricated, lobed^ thin, 2—3 inches broad, 1 

 inch long, white or wood-coloured ; dissepiments extremely 

 thin. Pores sometimes strongly toothed. Margin sometimes 

 very thin, torn, and inflexed when dry. 



Trunks of trees. Mauritius. Mr. Telfair. 



17. P. [Merisma) cristula, Kl. in Hook. Herb. Dull ver- 

 milion, imbricated, confluent, coriaceous. Pilei zoned towards 

 the margin, irregular, smooth. Pores shallow, minute, irre- 

 gular, angular, dissepiments thin, torn. Pilei confluent, % — 1 

 inch broad, their disk crested with numerous smaller pilei, 

 many of which are cylindrical and abortive; margin thin, acute, 

 barren. Pores of the smaller pilei decomposed into hydnoid 

 bristles, so that some parts of the mass appear bristly. Sub- 

 stance firm with a slight ferruginous tinge. 



On decaying Bamboo. Dr. Wight. Allied to PoL cinna- 

 barinuSy which does not appear to occur in the tropics. The 

 colour however is much duller. 



18. P. {Apus, Perenn.) ligneus, Berk. Wood-coloured. Pi- 

 leus convex, ungulate, hard, ponderous, rugose, zoned; hyme- 

 nium narrower with age ; pores extremely minute, round. Pi- 

 leus 3|- inches long, 5 J inches broad, 2^ inches thick. Sub- 

 stance wood-coloured, very hard, but velvety like cork. Mar- 

 ginal zones very narrow; those in the centre about three, 

 much raised, brown. Hymenium becoming narrower every 

 year. Sometimes cylindrical from the elongation of the vertex. 



St. Vincent^s, Rev. L. Guilding. Mauritius, Mr. Telfair. 



19. P. {Apus, Perenn) australis, Fr. P, foment arius, ^,ap- 

 planatus, Kl. in Hook. Herb. 



Mauritius. Mr. Telfair. A very extraordinary fungus oc- 

 curs in Mauritius which I think is clearly referable to this 

 species. It is furnished with a long lateral stem. Pileus much 

 longer than broad. Hymenium narrow with a broad sulcate 

 sterile border. Pores pale. Some specimens are altogether 

 stipitiform, pointed with an oblique abortive hymenium. I 

 have gathered Polyporus foment arius moi*e than once with a 

 long, distinct, lateral stem. Plate VIII. 



20. P. {Apus, Perenn.) fomentarius, Fr. North America. 

 Dr. Richardson. 



Var, excavatus, Berk. Hard, ungulate. Hymenium hoi- 



