62 



GUIDE TO THE MODELS OF FUNGI. 



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155. Tremella frondosa Fr. — Very large, caespitose, even, plicate 



at base ; lobes gyroso-undulate, semi-trans- 

 parent, pinkish-yellow or yellowish. 



Rare on the roots of living trees, oak, 

 etc. 



156. Tremella mesenterica Retz. 



Witches' Butter. — Flesh somewhat tough, 



and the surface simple, plicato-undulate, 



and gyrose ; when full grown pulverulent 



: _ with the spores. 



Very common on dead sticks of furze, 

 broom, etc., and known from the other 

 British species by its brilliant shining- 

 orange colour. It sometimes appears in 

 the winter. 



[57. Tremella moriformis Berk. — 

 Small in size, gelatinous, firm, spherical, sinuous, and opaque. 

 The interior mass is translucent violet. 



It grows on dead branches, and is 

 rare. It is known by its mulberry colour. 



GENUS XXV.—EXIDIA Fr. 

 Jelly-like when moist, tremulous, some- 

 what marginate, papillose. There are four 

 British species, one of which is represented 

 by a model. 



158. Exidia recisa Fr. — Brownish-yel- 

 low, very soft ; disc truncato-plane, ribbed, 

 papillose, rough with dots beneath; attach- 

 ment excentric, oblique. 



Common on dead wood, willow, etc. 



Fig. 57. — Trrmella mesenterica 

 Retz. (Natural size.) 



Fi{?. 58.- E.xidia gUindiilosa Fr. 

 (Natural' size.) 



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Fig. 50.— Hirneola Auricula-judac 

 Hcrk. (One-third natural size.) 



GENUS XXVI.— HIRNEOLA Fr. 

 Gelatinous, inclining to cartilaginous, 

 when dry leathery-horny, cup-shaped, re- 

 viving when moistened. There is only 

 one British species. 



159. Hirneola Auricula-Judae Berk, 

 lew's Ear. — Cinereous-olive or brownish 

 "flesh-coloured, at length black, thin, con- 

 cave, fle.xuous, somewhat like a human 

 ear, veined and folded without and within, 

 tomentose on the under surface. 



Local on old trunks, especially elder 

 and elm. 



