THE CRYPTOGAailC FLORA OF KENT. 211 



on the underside of the tufts, which are almost always found on 

 the perpendicular sides of damp, shady rocks, and rarely, as with 

 the other species, on exposed rocks.] 



Trihe III. — Bceomycei. 



B^OMYCES RUFUS, D.C. 



On exposed clayey hanks in woods, and on damp rocks; frequent. 



Winter and early sprmg. E. B. 373. 

 Brastead ; Ightham Common ; abundantly in fruit on the 



rocks on Rusthall Common in December, 1877. 



B. ROSEUS, Pers. 



On hare spots among heath, frequent ; the fructification rare. 



E. B. 374. 

 Ightham Common, in fruit ; abundantly in fruit at Toy's Hill, 



near Sevenoaks. 

 In the barren state may be known from B. rufiis by its much 

 whiter thallus, which is decidedly granular. 



Tribe — Cladoniei. 

 Cladonia pungens, Flk. 



On hniy slopes. E. B. 2444. 



Kent, Mr. IL S. Hill ; Leightoiis Lichen Flora. Morant's Court 



Hill; Lydd Beach. 

 Much resembles C. furcata, from which it may be known by 

 turning yellow when touched with a strong solution of caustic 

 potash. 



C. OERVicoRNis, Schcer. 



On rocky places. E. B. 2574. 

 Busthall Common ; Jemier Fl. Tunhr. 



C. CARiosA, Flk. C. ventricosa var. c. cariosa. (Jenner Fl. Tunbr.) 

 On the earth ; rare. E. B. Supplt. 2761. 

 Horsmonden ; Jenner Fl. Tunhr. 



C. DELICATA, Flk. 



On roots of trees, or decayed stumps in w^oods ; frequent. 

 Stone Wood, near Greenhithe ; on an old rail near Chelsfield. 

 Var. siibsqiiamosa, Nyl. In damp shady woods ; rare. Ightham 

 Common. 



C. AliCICORNIS, Flk. 



On dry, heathy ^Dlaces ; rare. September. Dillenius, t. xiv., 

 fig. 12a. 



Lydd Beach, abundantly, in fructification. 



This species I have observed nowhere else in Kent. It grows 

 on the mossy ridges of shingle. It is easily distinguished from 

 C. cervicornis by the black fibres at the margin of the thallus, and 

 by not being coloured yellow by a solution of caustic potash. 



C. PYxiDATA, Fr. Licheii pijxidatus (Fl. Metr.j 

 Common everywhere. E. B. t. 1393. 



Blackheath ; FL Metr. Sydenham ; Abbey Wood ; Otford ; 

 Maidstone ; Dover ; Tunbridge Wells, &c. 



