POLYPORUS. 215 



On Scotch fir. Glamis, 1874. Sept. Polypoms. 



Name ramenta, shavings, chips. On chips. B. & Br. n. 1809. 5. My col. 

 Scot. n. 774. 



****** Pores white then changing colour. 



99. P. cinctus Berk. White, turning pallid, forming small 

 erect scattered tufts, each surrounded by radiating strigose fibres. 

 Pores extremely minute, angular, dissepiments extremely thin, 

 edge ragged. 



Some of the patches are barren, and some at length become confluent. 

 Under favourable circumstances a distinct hymenium, 3 mm. (iK h'n.) thick, 

 with a free, even, abrupt, vertical circumference is formed in the centre of 

 each tuft. 



On old deal boards. Rare. King's Cliffe. 



Pores at length pallid ochraceous, darker when dry. Quite peculiar in its 

 structure. Fr. Name cingo, to encircle. From the fibres surrounding the 

 tufts. Berk. Out. p. 250. Mag. Zool. & Bot. i. /. 2. /. 3. C. Hbk. n. 805. 

 Fr. Hym. Eur. p. 575. 



100. P. armeniacus Berk. Suborbicular, confluent, extremely 

 thin, circumference minutely downy. Pores shallow, minute, 

 nearly round, at first white then bright buff, often confined to the 

 centre, the marginal portion being of a byssoid structure under 

 a lens. 



Forming broadly effused patches, composed evidently of many confluent 

 orbicular individuals. 



On fir bark. Appin. 



Name of the colour of apricot (Armeniacum). Berk. Eng. Fl. v. p. 147. 

 Out. p. 250. C. Hbk. n. 800. 



101. P. Rennyi B. & Br. Subiculum thick, pulvinate, pulver- 

 ulent, forming a thick, at first somewhat frothy then pulverulent 

 mass, white, turning to lemon-colour when dry. Pores sparingly 

 produced, white, elongated, dissepiments thin. 



On Scotch fir stump and running on the ground. Hereford, 

 1873. Glamis, 1873. Nov. 

 Name after J. Renny. B. 6* Br. n. 1432. S. Mycol. Scot. n. 756. 



102. P. subfusco-flavidus Rostk. White then light yellow- 

 fuscous, broadly effused by becoming confluent, thin, coriaceous, 

 arid, adnate, margin thin, white-flaxy, determinate. Pores 

 minute, irregular. 



On oak planks. Roof of King's Cliffe Church. 



The pores appear when viewed one way of a greyish -brown, and the other 



