APPENDIX. 407 



multipimctata, Turn., with the preceding, and usually in a sorediate condi- 

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

 quent ; F. muralis, Ach., with the preceding, and on calcareous stones in 

 the cemeteries ; V. mutahilis, Borr., on stones and flint pebbles in open fields 

 on a gravelly soil, common ; V. e2nderviidis, Ach., on the smooth bark of 

 trees in shady woods, and its var. atomaria, Ach., pretty frequent. From 

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

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

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

 LecidecB and Verrucarice, which will no doubt repay further research, were 

 added. Very different is it when we enter Essex, where, in Epping Eorest 

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

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

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



V. HYMENOMYCETOUS EUNGI. 



BY WORTHINGTOX G. SMITH, F.L.S. 



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

 pressed in his MonograpJiia Hy iuenomycetum Suecice : nearly all the species 

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

 have been gathered b}' the author within ten miles north of London. This 

 district, though in many places wood}^ 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 Rev. 

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

 (1797-1803). 



ORDER I. AGABICINL 



AGARICUS, Linn. 



Sectiok I. Leucospoei. Spores white. 

 Subgenus 1. Amanita. 



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



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



A. (Am.) Mappa, Batsch. In woods north of London. Uncommon. 



A. {Am,.) onuscarius, L. Under birches, Ken Wood ; uncommon, Bohun 

 Lodge, Barnet ; common. Poisonous. 



A. {Am.) excehi(,s,Yv. Open places. Highgate Wood. Uncommon. 



A. {Am.) panther inus, De C. With^. riibescens, P. not uncommon, not poi- 

 sonous. 



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



A. {Am.) asp)er, P. Woods north of London. Not common. 



