63 



TWO NEW BRITISH AGARICS. 



Described by Professor Elias Fries. 



Agaricus Wotthingtoni. Fr. — Pileus slightly fleshy, campanu- 

 late, then convex, viscid (?), even, golden yellow; stem fistulose, 

 slender, sub-ilexnose, turquoise blue ; gills adnate, ferruginous 

 brown. Fries in Journ. Bot. ( 1 873), p. 204. A. (Stropharia) albo- 

 cyaneus, Saund. 4' Sm. Myc. III., t. 29,/. 1-5 (not Desm.) 



Pastures. Walthamstow. Dec. 



Differing from Ag. albo-cyaneus, in which the stem is soft, hollow, 

 8-4 lines thick, and shorter ; pileus fleshy, convex, then plane, 

 milky-white, then becoming verdigris-green ; gills whitish, then 

 brownish. Spores -00027 X -00017 in. 



Agaricus Saundersii. Fr.— Pileus fleshy, thin about the margin, 

 convex, smooth, viscid (?), becoming whitish; stem solid, firm, 

 equal, smooth, white; gills slightly adnexed, broad, distant, flesh- 

 coloured. Fries in Journ. Bot. fl873), p. 205. A. (Entoloma) 

 majalis, Saund. 4' Sm. Myc. Illns. t. 46 (not Fries). 



Growing on the ground in patches. 



Ag. majalis, Fr., differs from this, especially in the slender stature, 

 fistulose stem, membranaceous pileus, which is campanulate on 

 opening, and cinnamon, and in the gills being free, crowded, and 

 crenate. 



LEIGHTON'S LICHEN-FLORA OF GREAT BRITAIN, 



&c. 



Being desirous to keep my folio interleaved copy of this work 

 duly posted up with the new species, varieties, and localities con- 

 tinually added to our British Lichens, with a view eventually to a 

 more perfect and comprehensive third edition, or at all events a 

 supplement to the work, I shall feel greatly indebted to lichenists 

 generally if they will obligingly communicate to me, either by loan 

 or gift, characteristic and authentic specimens of any new 'finds 

 and any other new T information relative to our Lichenology. It is 

 only by this mutual co-operation that anything approaching com- 

 pleteness or perfection can be obtained, and it is confidently hoped 

 that there will be no reluctance, but rather a willing readi- 

 among my fellow lichenists, to aid and assist with the char- 

 acteristic liberality of all real scientific students, in every possible 

 way at their command towards this desirable consummation. Any 

 specimens entrusted to me for examination will invariably be care- 

 fully and speedily returned to the owners, and I shall myself at all 

 times be most willing in return to supply their desiderata, so far 

 as my duplicates enable me to do so. 



Address Rev. W. A. Leigh ton, Lueiefelde, Shrewsbury. 



W. A. LEIGHTOtf. 



Aug. 25, 1873. 



