446 BRITISH FUNGI 



GUEPINIA 



Cap more or less saucer-shaped, gelatinous, attached obliquely 

 to a stem that is paler in colour than the orange hymenium. 



Femsjonsia 

 Hymenium more or less saucer-shaped, with a central gelatinous 

 layer, yellow, tapering downwards into a central, whitish stem. 



AURICULARIA 



Inflated and gelatinous when moist, rigid when dry. Attached 

 by a broad surface, upper part free and reflexed ; hymenium 

 variously broken up into pits by a raised net^^■ork of folds. 



A. mesenterica (PI. XXXIII, fig. 4). — Reflexed above, velvety 

 and zoned, brownish grey, edge not lobed ; hymenium brownish 

 purple or flesh-colour, much wrinkled with* raised ribs. 



Often covering a large surface, and \\'\i\\ numerous overlapping 

 free portions. 



On trunks and logs. 



A. lohata. — Differs from the preceding in having the edge of the 

 pileus cut into irregular lobes. 



On trunks. 



HiRNEOLA 



Soft and subgelatinous when moist, irregularly saucer-shaped with 

 wrinkled veins, barren surface minutel}^ velvety; hj^menium polished. 



H. amicula-judcB (PI. XXXVIII, fig. 4) (Jews' ears). — Thin and 

 elastic when moist, rigid when dry ; pileus greyish olive, minutely 

 velvety ; hymenium with irregularly arranged raised veins, 

 brownish flesh-colour, 1-2 in. across. 



Usually in small clusters, on old elder trunks. 



EXIDIA 



Soft and gelatinous, without a very definite form ; hymenium 

 sometimes minutely warted. 



E. glandulosa (PI. XXX,^.fig. 9)|(witches' butter). — Forming a 

 thick, flattened body 1-2 m. across! Greyish and slightly do\\'ny 

 on one side, dark brown, wrinkled and minutely warted on the 

 under surface, the whole plant soon becoming jet black. 



On dead branches, especially of oak. 



E. recisa. — Soft and gelatinous, about i in. across, amber-brown, 

 attached by a point. 



On dead willow branches. 



E. albida (PI. XXX, fig. i). — Gelatinous, forming irregular masses 

 bursting through the bark, at first pure white, becoming brownish 

 when old. 



Very common on decayed branches, forming patches |-| in. across. 



