CHAP. CV. 



1835 



IfiSl 



1682 



Fl., v. p. 212.) 



fig. 1678., is of a beautiful clear orange- 

 colour within. It grows generally on the 

 stumps of fallen oaks. P. bfcolor Jin//., 

 t. 410. f. 3., and P. cassia Pens. Syn., 

 p. 657., are found on fallen oak branches ; 

 and P. acicularis Peru., syn. P. aguricifor- 

 mis, and our fig. 1679., grows in old hol- 

 low trees. Bulgaria fnquinans Fries, Pe- 

 ziza inquinans Pert. Syn., p. 631., P. 

 polymorpha Sow., t. 428., and our fig. 1680., is a curiously shaped fungus, 

 and of a pitch-black colour. It is not uncommon on old stumps and pollard 

 oak trees ; and is very tough and elastic. B. sarcoidcs Fries, and OUT fig. 1681., 

 is also found on old stumps. Cenangiurn (/uercinum 

 Fries, syn. Hysterium ^uercinum Pcrs. Syn., p. 1 10., 

 and our fig. 1682., is extremely com- 

 mon on the small dead branches 

 which remain attached to the tree. 

 When young, it bears a close re- 

 semblance to a worm burrowing 

 beneath the smooth bark. (Eng. 



Stictis radiata Pers. Syn., p. 674., and our fig. 1683., is 

 found occasionally on the bark. Tremella mesenterica Retz, and our fig. 1684., 

 of a bright orange colour; and T. intumescens Smith Eng. Sot., t. 1870., 

 and our fig. 1685.; are found on trunks and branches. 

 The latter is " in perfection in very wet weather only, 

 when it forms numerous soft and pulpy clusters, twisted 

 and twined like the intestines of some animal ; of a 

 darkish dull brown, but with a shining surface, obscurely 

 dotted." (Smith.) Exidia auricula Judas Fries, Peziza 

 auricula Lin., and our fig. 1686., grows on living trees. 

 The " upper surface is corrugated ; and the plants branching from the middle 

 part, where they are strongest, are somewhat convoluted, so as to give the 

 idea of a human ear. When the plant grows on a perpendicular stump or 

 tree, it turns upwards." (Smith.) This fungus is found on the j^,; 



oak, the elder, and many other trees. Exidia glandulosa Fries, 

 syn. Tremella flaccida Eng. Sot., t. 2452., and our fig. 1687., 

 vulgarly called witches' butter, is a curious drooping fungus, 

 found on the bark. Sclerotium guercfgenum Berk, grows on 

 felled oaks ; Sphae'ria botryosa Fries, on hard oak wood ; S. 

 mutabilis Pers., on indurated stumps tossing about in woods ; S. aspera Fries, 

 on oak branches ; S. uda Pers., on oak wood in moist places ; S. coronata 

 Hojf., S. taleola Fries, and S. quercina Pcrs., on living branches ; and S. 

 leiphae v mia Fries, on dead branches. S. niicula jFVj'ro, and 

 Hysterium Carmichaelianum Berk., syn. H. varium Grev., 

 are found on oak bark. H. rugosum Fries is produced on 

 the smooth branches of the oak, and a variety occurs on 

 the beech ; H. pulicare, on the rotten wood of the oak ; 

 and Helminthosporium subulatum Xccs on oak branches. 

 Oidium aureum Link, of a beautiful golden orange colour, 

 was found in the hollow of the Fairlop Oak; and Psilonia 

 gilva Fries, more frequent on the stems of the larger herbaceous plants, 

 growing on the flat surface of a felled oak. 



Besides these, which all grow on the trunk and branches of the trees, the 

 following are found on the roots: Agaricus aurantiaco-ferrugfneus With.; 

 and Polyporus frondosus Fries, Schceff., t. 127., which is reported excellent for 

 food, sometimes attains the weight of 30 Ib. ; and, in Hungary, has been found 

 2 ft. high, and 3 ft. broad. When gathered, it smells like mice. Sclerodernm 

 citrinum Pers., Bolt. Fun., t. 116., and our fig. 1688., also grows on the roots. 

 Amongst the fungi which grow on the ground under the shade of the oak 



