252 HYDNEI. 



Raduium. 3. R. tomentosum Fr. White inclining to pale, effused, 

 innate, rather thick, circumference swollen, erect, tomentose. 

 Tubercles short, crowded together, angular, obtuse, smooth, 

 confluent. 



When dry pale wood-colour, the tomentum sometimes becoming ferrugin- 

 ous. 



On Pyrus aucuparia. Menmuir, Forfarsh. New Pitsligo, 

 Aberdeensh. 



Name tomentum, down. Downy. Fr. Hym. Eur. p. 624. B. & Br. n. 

 1439. S. Mycol. Scot. n. 828. 



4. R. deglubens B. & Br. Orbicular, 8 mm. (^ in.) across, 

 ferruginous, somewhat diaphanous. Tubercles erect, somewhat 

 cylindrical, irregular, scattered ; interstices even, pulverulent 

 with the white spores. 



On ash. Sanquhar, Moraysh. New Pitsligo, Aberdeensh. Jan. 



Name deglubo, to peel off. Peeling off. B. & Br. n. 1440. S. Mycol. 

 Scot. n. 829. 



5. R. corallinum B. & Br. Effused, white ; subiculum shining, 

 very thin, pelliculose. Tubercles fasciculate (fascicles 6 mm., 

 X in. or more across), divided downwards, obtuse, coralloid. 



Effused for 7.5 cent. (3 in.) over branches partially covered with lichens. 



On oak branches. Glamis, 1874. Sept. 



Name /copaAAioc, coral ; elSos, appearance. Coral-like. B. dr 1 Br. n. 1441. 

 S. Mycol. Scot. n. 830. 



6. R. epileucum B. & Br. Effused for several inches, ochrey- 

 white, wholly resupinate; subiculum snow-white, covered by a 

 waxy stratum. Tubercles scattered, cylindrical, under a lens 

 fimbriated at the apex, deciduous. 



Tubercles falling out and showing the white mealy subiculum, round which 

 is an annular depression. 



On decorticated wood. Glamis, 1874. Aug. 



Name en-i, Aev/c6?, white. Whitish. B. 6^ Br. n. 1442. S. Mycol. Scot. n. 

 831. 



** Innate, removing the bark. 



1. R. fagineum Fr. White, becoming pale, innate, removing 

 the bark, smooth. Tubercles elongated, round, various, obtuse, 

 entire. 



Surrounding decorticated branches like stalactite. 



