IRPEX. 



249 



* Stipitate. 



** Pendulous with the pileus extended behind. 

 *** Sessile or effuso-reflexed, marginate. 

 **** Resupinate. 



Irpex 



* Stipitate. 

 No British species. 



** Pendulous with the pileus extended behind. 



1. I. pendulus Fr. Pilei light 

 yellow, extended behind, pendulous, 

 membranaceous, plicate, adpressedly 

 squamuloso-pilose. Teeth in rows, 

 large, incised, shining white. 



Membrane of the pileus elastic, but when 

 extended it contracts again. Its characters 

 are wholly those of the genus, but it is not 

 allied to any other plant among the Hydna. 

 It is nearly allied to Cyphella, more remote- 

 ly to Trogia, and might almost be regarded 

 as the type of a separate genus. 



On pine. Rare. Castle Semple 

 (Edin. Herbarium). Menmuir. 



Name pendo, to hang. Pendulous. 



Fr. Hym. Eur. p. 620. Berk. Out. p. 262. LXXVll. lrgx*Bq***. Nat- 

 C. Hbk. n. 870. S. Mycol. Scot. n. 822. ""1 size. Section twice natural 

 Alb. & Schw. p. 261. t. 6./ 7. 



*** Sessile or effuso-reflexed^ marginate. 



2. I. fusco-violaceus Fr. Pileus 5 cent. (2 in.) long, more 

 than 2.5 cent, (i in.) broad, white inclining to hoary, effuso- 

 reflexed, coriaceous, silky, zoned. Teeth in rows in the form of 

 plates, fuscous-violaceous, incised at the apex. 



It differs certainly from Polyporus abietinus. It is marked with a few 

 depressed, concentrically sulcate zones of the same colour. Margin deflexed, 

 often repand. Often wholly effused. 



On pine trunks. Rare. Leigh Woods. 



Name From the colour of the teeth. Fr. Hym. Eur. p. 620. Elench. p. 

 144. Br. Bath. Trans. 1870, /. 87. C. Hbk. n. 873. Kl. Bor. t. 536. 

 Willd. Bot. Mag. iv. /. 2. / 5. 



**** Resupinate. 



3. I. Johnston! Berk. Resupinate, 5 cent. (2 in.) long, pure 

 white, coriaceo-membranaceous, separable from the matrix, cir- 



