GUIDE TO THE MODELS OF FUNGI. 



17 



25. Agaricus cyathiformis Fr.— Pileus deeply depressed, umber- 

 black, hygrophanous, becoming somewhat paler when dry, its mar- 

 gin remaining for a long time involute ; flesh almost as dark as the 

 pileus ; gills decurrent, cinereous fuscous ; stalk attenuated upwards, 

 fuscous, fibrillose and somewhat reticulated, a little paler in colour 

 than the pileus. 



A. cyathiformis usually grows in woods, in fields, and on downs ; 

 it often appears late in the season, and may be commonly found after 

 the frosts of winter have set in ; it is a beautiful and easily recognised 

 but variable species, sometimes cinnamon-brown, clay, or flesh- 

 coloured, with whitish-brown or grey gills ; the colours are usually 

 very dark, especially in damp weather. 



26, Agaricus laccatus Scop. — Pileus varying from a quarter of 

 an inch to four or five inches in diameter, the average size about an 

 inch, thin and scurfy, depressed, dry but very hygrophanous ; gills 

 adnate with a decurrent tooth, very broad, distant ; stalk tough, 

 fibrous, stuffed, equal, flexuous, twisted, same colour as pileus, white 

 villous at the base. 



A. laccatus is a very variable plant both in colour and stature. 

 There are two colour-varieties : the more common rufous flesh- 

 colour, carnation, or brick red, becoming ochreous on the pileus 

 when dry ; the less common being intense bright purple, becoming 

 lavender on the pileus when dry. 



This variety is usually known as A. amethystinus Bolt. ; it varies 

 from lavender to blackish-purple. 



A. laccatus in all its forms grows among dead leaves in woods, 

 generally singly, but sometimes in small connate groups. 



Sub-genus 6. Collybia. — There are about sixty British species of 

 Collybia, of which only five are represented by models. The species 

 usually grow on dead stumps, twigs, or 

 leaves ; some root in the ground, and a few 

 grow upon other fungi. The latter spring 

 from sclerotia, little hard masses of compact 

 mycelium, about the size of a grain of 

 wheat ; these sclerotia are formed in the 

 ground or in the substance of other fungi. 

 Most of the species are small, firm, slow- 

 growing, and persistent ; they continue in 

 active growth till the winter has well ad- 

 vanced ; several have a disgusting odour. 

 Collybia is frequently confounded with 

 Marasmius. 



The margin of the pileus is at first i'^'K- }°- 

 involute; the stem is hollow, with a distinct 



-Type form of Colly- 

 Agaricus fusipes Bull, 

 (One-quarter natural size.) 



cartilaginous bark ; the gills are free or obtusely adnexed. 



27. Agaricus radicatus Relh.— Pileus brown, flattened, more or 

 less umbonate, often irregular, glutinous, wrinkled, and seldom more 



