Massee — The Fungus Flora of New Zealand. 29 



cracked when dn% minutely pulverulent under a lens ; spores 

 elliptical, 12-13 x A fx.. 



On dead bark. New Zealand. Queensland, South Africa, 

 Europe. 



Distingxiished by the pale-flesh-coloured minutely pulveru- 

 lent hymenium. 



Corticium polygoniiwi. Fries, Hym. Eur., p. 655 ; Berk., Hdbk. 

 N.Z. Flora, p. 613 ; Sacc, Syll. vi, no. 7611. 



Closely adnate, inseparable, outline sharp, extreme margin 

 byssoid, soon becoming hard and rigid, 5-10 cm. broad ; hy- 

 menium dingy flesh-colour, primrose, usually much cracked or 

 nodulose ; spores narrowly elliptical, 14-16 x 5-7 /a. 



On dead bark and wood. Northern Island, New Zealand. 

 Europe, United States. 



Usually extending under the form of small, distinct, Tuber- 

 ■cularia - like pustules, which eventually usually become con- 

 fluent, thick, separating from each other more or less when dry; 

 giving the patch a cracked or tesellated appearance ; sometimes 

 continuous, and then the surface is more or less tuberculose ; 

 margin thin, adnate, byssoid ; hymenium primrose, pinkish, 

 black, or ding}'-ochraceous. 



** 1 1 ymenium irkite at first, sometimes hecoming pale-tan or pale-rose colour. 



■Corticium auherianum, Montag., Crypt. Cuba, p. 372 ; Sacc, 

 Syll. vi, no. 7552 ; Austr. Fung., p. 194. 



Closely adnate, at first orbicular, several patches soon becom- 

 ing confluent or growing into each other and forming broadly 

 extended patches, 5-10 cm. long and broad, very thin, at first 

 snow-white and minutely primrose, finally glabrous and tinged 

 with dingy-yellow or grey, finely crooked when dry ; margin 

 persistently minutely floccose or fibrillose ; spores elliptical, 

 6-7 X 4 /x. 



On bark, &c. New Zealand. Australia, Patagonia, Cuba, 

 United States. 



Keadily distinguished by the hymenium, which is snow- 

 white and primrose when young. When the fimgus is old it 

 ■sometimes partly peels away from the matrix. 



Corticium alhidum, Mass. S}m., Aleurodiscus albidus, Mass., 

 Grev., xvii, p. 55 ; Cooke, Austr. Fimg., p. 193, fig. 83. 



At first concave, rather fleshy, white, outside and margin 

 tomentose, at first incurved then becoming extended and 

 flattened, up to 6 mm. diameter, often confluent and forming 

 rather large patches ; hymenium white, minute mealy, cracking 

 slightly when dry ; spores elhptical, 10-12 x 9 /x. 



