CLASSIFICATION 409 



edge. From this condition we pass through species spreading hori- 

 zontally and attached by a broad base to the lowest type of struc- 

 ture, which is entirely resupinate. Whenever a free portion is 

 present, the sterile side is always densely silky or velvety ; the 

 hymenium is constantly smooth and even, and does not become 

 cracked when dry, as in the allied genus Corticimn. In some species 

 the substance of the hymenium becomes deep red when scratched 

 or bruised. 



Cladoderris 



Cap leathery, with a central or lateral stem ; hymenium with 



vague, radiating ridges which are often nodulose or warted. The 



only British species is a minute fungus, closely resembling a stunted 



form of Stereum hirsutum, differing in having a wrinkled hymenium. 



Thelephora 

 In this genus we meet with considerable diversity of form and 

 relative differentiation. Some species grow erect, with a central 

 stem ; others are partly adnate, with an upper, free, spreading 

 portion ; several lie more or less flat on the ground, and consist of 

 several overlapping portions ; while some of the lower forms are 

 almost entirely adnate to the substratum. The texture is generally 

 coarsely fibrous and very dry ; the prevailing colour is dusky brown. 

 The hymenium in several species shows a tendency to become un- 

 even, being either irregularly papillose or warted, or furnished with 

 more or less raised lines, 



Cyphella 

 Minute fungi growing on herbaceous stems, dead wood, etc. The 

 cap is usually more or less cup-shaped, with or without a short 

 stem ; often pendulous or hanging with the opening of the cup 

 downwards. The hymenium is situated inside the cup. 



SOLENIA 



Minute fungi, more or less cylindrical, with the mouth or opening 

 somewhat contracted. Usually numerous specimens are closely 

 crowded together, forming somewhat large patches on wood and 

 bark. The hymenium is on the inside of the cylinder. 



Craterellus 

 All the species grow on the ground. Cap more or less funnel- 

 shaped ; sometimes this feature is very pronounced, and the open- 

 ing continues down the stem, so that it is literally funnel-shaped. 

 Substance usually quite thin and pliant. The hymenium is situated 

 on the outside of the funnel-shaped portion, and is either even or 

 slightly wrinkled ; but there is never so strong an indication of 

 gills, in the way of ridges, as is met with in some of the simpler 



