CLAVIS AGARICINORUM. 2 l? 



or distinct from the liyinciiopliormn ; gills at first cohevent, and 

 sprinkled with a micaceous scurf, soon deliquescing into a black fluid, 

 traraa none. — Hab. Fat and rank places, often on dung, but some- 

 times on decaying wood. 



Readily distinguished by its deliquescent habit. 



Genus III. Bolbitius, Fr. Epicr. p. 253. — Spores coloured ; pilcus 

 yellow, becoming moist ; stem hollow, confluent with (he hymenopho- 

 rum ; gills becoming moist, but not deliquescent, at length losing their 

 colour and becoming powdery. — Hab. Dung or rank earth near towns. 



A very natural but small genus, intermediate between Agaricus and 

 Coprhius on one side, and Coprlnus and Gorllnarim on the other; it 

 resembles Copriuus in its mode of growth, and ephemeral existence ; 

 the species have no known use. 



Genus IV. Cortinarius, Fr. Epicr. p. 255. — Spores rusty ochre, 

 resembling in coloin- peroxide of iron; veil universal, of a different 

 texture from the pilcus, aiul consisting of arachnoid threads : a similar 

 veil is found in Agaricus, but it is there either entire, partial, or con- 

 tinuous with the cuticle of pilcus; stem confluent with the hymeno- 

 phorum ; gills adnatf!, mcnd)ranaccou3, persistent, cinnamon-coloured 

 and powdery, trama tloccose. — Hab. Woods and fields. 



This genus, the most natural amongst the Agarlchii, is readily dis- 

 tinguished by its peculiar habit, but is badly defined by artificial cha- 

 racters ; the species are variable in size and changeable in coloiu' : when 

 old, they present a different appearance from their young state, and are 

 very different when dry to when fresh. It has been divided as follows : — 



Subgenus 1. Piilegmacium, Fr. Epicr. p. 256. — Pilcus with-a con- 

 tinuous pellicle, viscid when moist ; veil (and cons(;quently the stem) 

 dry, not glutinous. 



Subgenus 2. Myxacium, Fr. Epicr. p. 273. — Pileus glutinous ; veil 

 (and consequently the stem) viscid, polished when dry. 



Subgenus 3. Inoloma, Fr. Epicr. p. 278. — Pileus fleshy, subcom- 

 pact, perfectly dry, with no viscid pellicle, silky with scales, or innate 

 libres, not hygrophanous ; stem bulbous. The species handsome and 

 easily distinguished. 



Subgenus 4. Dermocybe, Fr. Epicr. p. 283. — Pileus thin, but 

 fleshy, with no viscid pellicle, entirely dry, not hygrophanous, at first 

 clothed with a superficial down, then glabrous ; stem thin, somewhat 

 stuffed, equal or attenuated, not bulbous ; gills changeable in colour. 



