AGARICINI. 223 



1859, M. J. B. and Mr. Curreij. South of England, C. E. 

 Broome. Scarcely exceeding 3 lines in breadth. Gills even, 

 with veiny interstices. A most elegant species, and quite 

 distinct from M. rotula. 



19. M. alliaceus, Fr. ; garlic-scented ; pileus subraembra- 

 naceous, campanulate, then expanded, somewhat umbonate, 

 even, then sulcate, turning pale ; stem horny, tall, rigid, 

 black, between velvety and pruinose, base rooting, naked ; 

 gills free, brownish-white. — Jacq. Aust. t. 82. 



In woods. Rare. Edinburgh, Capt. Wuuch. Not at all 

 allied to the species which follow. 



b. Stem velvety and jjihse. 



20. M. perforans, Fr. ; fetid ; pileus submembranaceous, 

 nearly plane, not striate, rugulose, smooth ; stem equal, vel 

 vety, dark-bay, inserted at the base ; gills adnate, simple, 

 dirty-white, frequently dimidiate. — Batsch, /. 10. 



On fir-leaves. Not common. Scotland. 



21. M. insititius, F/-. ; inodorous; pileus membranaceous, 

 tough, convexo-plane, subumbilicate, unpolished, at length 

 plicato-sulcate ; stem horny, floccoso-furfuraceous, reddish- 

 brown, attenuated downwards into the simple inserted base; 

 gills broadly adnate, attenuated in front, distant, simple, \in- 

 equal, pallid, white. (Plate 14, fig. 6.) 



On leaves, decayed grass, etc. Northamptonshire. In 

 several localities. This is a variable plant. Some specimens 

 agree exactly with a figure sent to me by Fries, and with the 

 character ; in others the stem is paler and the pileus less 

 plicate. The stem, however, is not attenuated downwards. 

 Sometimes the disc is reticulated. The pileus is generally 

 nearly white. I have one specimen with a rhizomorphoid my- 

 celium. My plant is exactly A(jaricus calupus, Libert. 



22. M. Hudsoni, Fr. ; inodorous; pileus membranaceous, 



