220 Botany. 



COMATRICHA obtusata, Preuss. Common on dead wood, Eltham. 

 FULIGO septica, Gmel. On old rotten tan ; common. 

 PERICHjENA variabilis, Rost. Bickley. R. Beer. 

 PHYSARUM cinereum, Pers. Bickley. R. Beer. 

 P. leucopus, Link. On dead leaves, Eltham. L.C.C. 

 STEMONITIS fusca, Roth. On dead wood, common, Eltham. 

 TRICHIA fallax, Pers. Lock's Bottom. R. Beer. 

 T. varia, Pers. Orpington. R. Beer. 



DIVISION B. LICHENS. 



There are not many lichens in the near neighbourhood of Lon- 

 don, smoke being fatal to their development. But away from the 

 towns they are fairly represented, though very little attention has 

 been paid to them in our districts. The following records have 

 been taken from papers on the Cryptogamic Flora of Kent by 

 E. M. HOLMES, F.L.S., published in the Journal of Botany in 

 1878, and in the Victorian History of Ke..t, now in course of 

 preparation. The records with no authority attached are Mr 

 Holmes's ; the rest have their sources indicated. I have also 

 included some of the commoner lichens, which, while they occur in 

 West Kent, have not yet been recorded within our district, though 

 doubtlessly they are to be found there. The arrangement foPowed 

 is chiefly that of the Third Edition of Leighton's Lichen Flora of 

 Britain. 



Class I COLLEMACEI. 



GOLLEMA cheileum, Ach. Old walls and limestone banks and 

 roadsides ; frequent. 



C. erispum, Ach. On walls in damp shady lanes ; frequent. Chels- 



field. 

 C. glaucescens, Hoffm. Damp mossy roadsides ; rare. Chelsfield. 



C. nigrescens, Ach. On exposed tree-trunks in damp places. Near 

 Halstead (with apothecia). 



C. pulposum, Ach. On damp clayey banks ; common. Near Keston 

 Common. 



var. ceranoides, Borrer. On chalk bank near High Elms, 

 Chelsfield. 



COLLEMODIUM Schraderi, Nyl. On mud-capped limestone walls 

 among mosses, and on rubble heaps in chalk-pits ; frequent. 

 In fruit at Shoreham and Chelsfield. 



C. turgidum, Nyl. On old mossy walls and in chalk-pits ; frequent. 

 LEPTOGIUM lacerum, Ach. Among moss on damp banks ; not in- 

 frequent. Eynsford. 



