162 FUNGI. IThehpJiora, 



1. P. mesenterica, Dicks, {suhgelatiiious Phlehia) ; resupinate, 

 then reflexed villous, grey'brown yellow or olive fasciated gela- 

 tinous within, hymenium quite even or wrinkled and minutely 



priiinose. Fr. El. v. 1. p. 154 Auricularia tremelloides, Bull, 



t, 290. With. V. 4. p. 302. Part. 3Iidl. FL v. 2. 1019 8^^ v. 3. 

 p. 453. — A. mesenterica, Pers. Myc. Eur. v. I. p. 97. — A. cor- 

 rugata, Sow. t. 290. — Helvella mesenterica, Dicks. Ease. 1 . p. 20. 

 Bolt. t. 172. — Thelephora mesenterica, Pers. Syn. p. 571. 



Old trunks, rails, &c. Very common. — At first effused and quite 

 resupinate, at length more or less reflexed, often dimidiate, occasionally 

 infundibuliform, 2 — 3 inches broad, gelatinous in wet weather, hard and 

 cartilaginous when dry ; the upper surface tomentose, more or less 

 zoned ^or fasciated ; hymenium purplish-violet or light-brown, quite 

 smooth or wrinkled, especially when dry, powdered with a beautiful 

 bloom. Asci none.— Undoubtedly much more nearly allied to the 

 Pileati than to the Tremellini. I have never been able to detect 

 anv other fructification than the bloom whh which the hymenium is 

 sprinkled. The wrinkles are by no means always present, and perhaps 

 are in general due to partial desiccation. It is certainly best associated 

 with the true species of Phlehia, if it be not deemed advisable to form 

 a distinct cenus for its reception. Klotzsch has indeed published it in 

 his Fung. ^Germ. Exs. n. 45, under the name of Oncomyces mesen- 

 iaricus, but has given no characters. The upper surface is frequently 

 quite as much wrinkled when dried without pressure, as the hymenium. 



2. P. merisinoides, Fr. (3Ierisma-like Phlehia) ; effused flesh- 

 coloured villous aud white beneath, margin orange pilose, folds 

 straight. Fr. Syst. Myc. v. I. p. 427. Grev! Scot. CrypLFL 

 t. 280. 



Trunks of trees, frequently intermixed with and incrusting mosses ; 

 Autumn and Winter. Swanston wood, near Edinburgh, Dr. Greville. 



" Plant 2 3 inches across ; folds nearly straight when growing on 



a smooth surface, passing into prominent papillae in individuals incrust- 

 ing mosses." 



3. P. radidta, Fr. {rayed Phlehia); orbicular, smooth on both 

 sides, dull flesh-colour, folds close disposed in rows vanishing 

 towards the radiated circumference. Fr. Syst. Myc, v. 1. 

 p. 427. 



On Birch. Appin, Captain Carinichael—" Between fleshy and 

 membranaceous, tough ; at first orbicular, then dilated, confluent, 1—3 

 inches broad, margin free, smooth, but beautifully fibroso-radiated. 

 Folds radiating from the centre, short, interwoven, very close." Fr. 

 I. c. One of the specimens gathered by Captain Carmichael is four 

 inches long and appears to have been originally still larger. In this, the 

 character of the radiated margin is entirely lost and the folds are very 

 short, so as to resemble blunt compressed teeth ; but there is still 

 something like order visible in their disposition. 



14. Thelephora. Ehrh. Thelephora. 

 Hy7neniu7n homogeneous and concrete with the pileus, even 

 or papillate, the whole surface bearing «5a.— Named from ^jjXjj, 



