CORTIC1UM. 281 



Name con, and ruga, a wrinkle. Corrugated. Fr. Hym. Eur. p. 656. Corticium, 

 Theleph. Elench. p, 224. Hymenochaete Berk. Out. p. 272. C. Hbk. n. 918. 

 S. Mycol. Scot. n. 867. Grev. t. 234. 



**## Ampliigenous, very thin, innate, removing the bark. 



34. 0. comedens Fr. Flesh-colour becoming pale, effused, 

 innate, growing under the bark, exposed on the epidermis splitting 

 asunder. Hymenium even, smooth, cracked when dry. 



Slightly viscid when moist. Erumpent specimens of C. incarnatum must 

 not be confounded with it. Distinguished from all others by its manner of 

 growth, never formed on decorticated wood or above the bark. 



On dead branches. Very common. Nov.-March. 



Hymenium sometimes white. The bark forms a margin round it. M.J.B. 

 Name comedo, to consume. From its destroying the bark under which it 

 grows. Fr. Hym. Eur. p. 656. Berk. Out. p. 276. C. Hbk. n. 942. S. 

 Mycol. Scot. n. 900. Theleph. Nees Syst. f. 255. Fr. Elench. p. 219. 



*#*## species less known, doubtful. 



35. C. aurora Berk. Rose-colour, turning pallid, very thin, 

 effused, agglutinated, circumference indeterminate. 



On dead leaves of Carices. Batheaston. 



Name Aurora, the dawn. From the colours. Berk. Out. p. 276. C. Hbk. 

 n. 944. Fr. Hym. Eur. p. 657. 



36. C. typhse Fckl. Longitudinally effused, thin, at first 

 orbicular, white and flaxy, wholly smooth, then somewhat mealy, 

 tan-colour. 



On Typha latifolia. North Wooton, 1874. 



Spores oblongo-lanceolate, multiguttate, hyaline. Fckl. Name from the 

 host plant. Fuckel Symb. p. 27. Fr. Hym. Eur. p. 657. Grevillea, vol. iv. 

 /. 119. 



Subgenus I. CONIOPHORA. Fleshy, undulated and 

 tubercular, c. 



37. C. puteanum Fr. Light-yellowish-pallid, at length fuscous- 

 olivaceous, the mucedinous circumference white, roundish or 

 effused, fleshy, fragile. Hymenium somewhat undulated, pul- 

 verulent with the fuscous-olivaceous spores. 



On dead wood in cellars, &c. Frequent. Nov. 



Very fragile, 2 mm. (i lin.) thick. It loosens itself from the trunk with age. 

 It decays and grows black in winter, but in the following year a new plant 

 crusts over the destroyed one. Sommerf. Sometimes dripping with moisture. 



