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Fig. 175. — Fruit-bodies of Collybia radicata provided with pseudorhizae attached to 

 roots of trees, etc., beneath the surface of the soil. A, two fruit-bodies on a 

 Horse-Chestnut root ; r, the root ; s, the soil, excavated ; each fruit-body con- 

 sists of an aerial stipe-shaft and pileus and of a long subterranean pseudorhiza ; 

 the spores falling from the pilei are being carried off by the wind. B, a vertical 

 section through a fruit-body attached to a thick Beech root near the surface of 

 the soil ; r, the root ; s, the soil ; the pseudorhiza is solid to the centre. C, 

 a vertical section through a fruit-body attached to the top of a Beech stump 

 covered with a thin layer of leaf-mould ; iv, wood ; I, the leaf-mould ; no 

 pseudorhiza has been developed. D, a piece of the outer surface of a root ; 

 the ring in its centre shows the very small point of attachment of the pseudo- 

 rhiza of a large fruit-body. A, observed at Birmingham ; B, at Heyshott; and C, 

 at Kew. A, B, and C, reduced to one-half the natural size ; D, natural size. 



