CLASSIFICATION 261 



crowded, pallid, then cinnamon ; stem equal, wavy, hollow, pale 

 honey-yellow with white fibrils, apex scurfy, about 2 in. long. 



Closely allied to P. marginata. 



On chips and twigs lying on the ground. 



Pluteolus 



Cap regular, conical or campanulate, then expanded, edge at 

 first straight and pressed to the stem ; gills free ; stem central ; 

 spores rusty. 



A small genus agreeing structurally with Phtteus ; differing in 

 having rusty spores. 



P. reticulatus. — Cap i|-2 in. across, viscid, greyish or pale lilac, 

 with raised ribs that form an irregular network ; gills rusty saffron ; 

 stem i|-2 in. long, fibrillose, white. 



On dead wood. Rare. 



P. aleuriatus. — Cap about f in. across, viscid, not wrinkled, 

 greyish or pink ; gills ochraceous saffron ; stem i|-2 in. long, 

 white, powdery. 



On rotten sticks, etc. Fragile. Rare. 



BOLBITIUS 



Cap regular, membranaceous ; gills free or adnexed, rusty, soft, 

 and dissolving ; stem central ; spores rusty. 



Very delicate and fragile, gills deliquescing into mucus, the whole 

 plant soon deliquescing. Growing on dung or rich ground. 



* Stem white. 



B. grandinsculus. — Cap i|-2 in. across, campanulate, then ex- 

 panded, smooth, slightly striate, pale yellow, disc rufous ; gills 

 free, crowded, rusty ochre ; stem narrowed upwards, smooth, even, 

 straight, 3-4 in. long. 



Known by the narrow, free gills and long, pure white, tapering stem. 



Among grass. 



B. vitellinus. — Cap i|-2 in. across, soon expanded, clear, deep 

 yellow, edge even, then grooved ; gills narrow, ochraceous tan ; 

 stem about 3 in. long, white, and covered with white squamules. 



On dung and in rich pastures. Somewhat tufted. 



B. apicalis (PI. XXVI, fig. 2). — Cap |-i in. long, persistently 

 conical, brownish, striate, subumbonate ; gills free, bright brown ; 

 stem about i| in. long, base thickened, striate. 



Distinguished by the cap being striate and brown up to the 

 smooth, ochraceous disc. 



In pastures. 



B. rivulosus. — Cap about i| in. across, campanulate, striate, 

 dingy tan-colour ; gills rather distant, cinnamon ; stem about 3 in. 

 long, straight, smooth. 



In conservatories. 



