118 THE CRYPTOG.Onc FLORA OF KENT. 



N. commune'^^ have been with CoJlema pulposum, it will be necessary 

 to treat them as Algae. 



Tribe — Collemei. 



CoLLEMOPSis ScHiERERii, Mass. Pi/renopsis Schccrerii, Mass. (Leigh- 

 ton Lichen Flora.) 

 On detached pieces of chalk in shaded damp places ; probably 



not unfrequent. 

 Boxley Hill, near Maidstone ; on stones in a chalk-quarry near 

 Kemsing. 



C. DiFFUNDENS, Ni/l. Pijrenopsis diffundem, Nyl. (Leighton Lich. Fl.) 



On greensand rocks ; rare. 



Maidstone ; Admiral Jones, 1865. 



Unfortunately the specimen collected by Admiral Jones is not 

 in this country, so that a more exact locality cannot be given. 

 It is, however, likely to occur in Fant Woods near Maidstone, 

 although I have hitherto been unable to detect it here. 



[Collemopsis Flotowiana, Hepp., should be looked for in Kent. 

 In Surrey it occurs together with C. Scharerii, from which it may 

 be known by its redder and more distinct apothecia.] 



COLLEMA FURVUM, Ach. 



On limestone walls ; rare. 



On a bridge between Staplehm'st and Boughton Monchelsea, 

 sparmgly, and without apothecia ; on walls near Lympne. 



C. PULPOSUM, Ach. 



On damp clayey banks ; common. 



Tunbridge Wells, Mr. Borrer ; Leighton Lich. Fl. Near Keston 

 Common ; Wrotham ; Wye ; Folkestone ; Sandwich ; 

 Shoreham. 

 Var. C. ceranoides, Borrer. On chalky banks. 



On a chalky bank near High Elms, Chelsfield. The plant 



gathered in this locahty occurred in small isolated compact 



tufts, and corresponded exactly with a specimen given to 



me by Dr. Ralfs, to whom it was sent by Mr. Borrer. 



It may be here remarked that I have more than once found 



near Shoreham a specimen of this species in which half the thallus 



had the firm consistency of the Collema, and the other haK the 



gelatinous character and shai^e of Nostoc connnune. 



C. LiMosuM, Ach. 



On damp ground in quarries and amongst grass; not common. 



On a grassy spot by the roadside near Chelsfield. 



Appears to be only a state of C. indjyosum, with the thallus 

 scarcely developed. 



C. CRISPUM, Ach. 



On walls m damj) shady lanes ; frequent. 

 Abundant near Westerham ; Chelsfield. 



'■ ' Bulletin de la Societe des Sciences Naturelles St. Petersburg,' vol. xii. 

 p. 118. 



