APPENDIX. 407 



multiprinMata, Turn., -svith the preceding, and usually in a sorediate condi- 

 tion ; Verrucaria viridida, Schrad., on the mortar of old walls, not infre- 

 quent ; T. niurcdis, Ach., with the preceding, and on calcareous stones in 

 the cemeteries ; V. mutahilig,'Borr.,(m stones and flint pebbles in open fields 

 on a gravelly soil, common ; V. C2ndcrmidis, Ach., on the smooth bark of 

 trees in sliady woods, and its var. cdomaria, Ach., pretty frequent. From 

 this list, which, however, is not to be regarded as a complete one, it will at 

 oace be perceived how poor a field the county of Middlesex presents to the 

 lichenologist. Nor would this be loss true, even if some few species of 

 LecidccB and Verrucarics, which will no doubt repay further research, were 

 added. Very diiFerent is it when we enter Essex, where, in Epping Forest 

 at least, a goodly harvest may be gathered. The only rarity as yet found 

 in Middlesex is Arthonia mdaspermdla, Nyl., a new species recently gathered 

 by Mr. Currey, and recorded by Dr. Nylander in Flora, 1865, p. 605. 



V. HYMENOMYCETOUS FUNGI. 



BY -WORTHINGTON G. SMITH, F.L.S. 



The sequence of the species is founded on the later views of Fries as ex- 

 pressed in his Monofiraphia Hyincnomycctum Suecite : nearly all the species 

 here enumerated, several being very recent additions to the British Flora, 

 have been gathered by the author within ten miles north of London. This 

 district, though in many places woody, is virtually destitute of fir groves, 

 therefore the plants peculiar to these prolific localities are few and unim- 

 portant. When a species is known to be either wholesome or poisonous, its 

 nature is stated, the author's own experience being supplemented by some 

 notes communicated by Mr. J. A. Clark, of Street, .Somerset. A few- 

 species and localities have been added by Mr. M. C. Cooke and the Eev. 

 W. M. Hind, and a few others extracted from Sowerby's British Fungi 

 (1797-1803). 



ORDER T. AGABICINI. 



AGARICUS, Linn. 



Section I. Leucospoei. Spores white. 

 Subgenus 1 . Amanita. 



A. (Am.) voffinaf IIS, Bull. Woods north of London. Common. Esculent. 



A. (Am.) Cccdia, B. & Br. Open places in Bishop's Wood ; rare. 



A. {Am.) vermis. Bull. In the spring and early summer. Bishop's Wood ; 

 rare. Poisonous. 



A. {Am.) Phnlloidcs, Fr. Common in woods north of London. Poisonous. 



A. {Am.) Ma-jrpa, Batsch. In wood.5 north of London. Uncommon. 



A. {Am.) mu.-icarius, L. Under birches, Ken AVood ; uncommon. Bohun 

 Lodge, Barnet ; common. PoisonoTis. 



A. {Am.) excehiis, Fr. Open phices. Highgate AVood. Uncommon. 



A. {Am.) 2>anihcrinus, De C. AVith^. rubcscens, P. not uncommon, not poi- 

 sonous. 



A. {Am.) riihcsccns, P. Common in woods north of London. Esculent. 



A. {Am.) a.'iper, P. AVoods north of London. Not common. 



