THE CRYPTOGAMIC FLORA OF KENT. 119 



C. CHEILEUM, Ach. 



On walls and limestone banks, frequent. 



Postling ; Maidstone ; Wrotliam ; Boughton Monclielsea ; Seven- 

 oaks ; Brastead. 

 Appears to me to be only a variety of C. crispum, Acb. 



C. NIGRESCENS, Ach. 



On exposed trunks of trees in damp places. 

 On a willow tree near Penshui-st ; Beechborough, abundantly ; 

 with apothecia, near Halstead. 



C. BIATORINUM, Xyl. 



On mud-capped walls and on rubble-heaps in chalk-pits. 

 Maidstone ; Admiral Jones, 1866. In a small chalk-pit near 



Selling. 

 Easily recognised by its granular mmute thallus, usually of a 

 brownish colour, and biato^ine apothecia. 



Leptogium cretaceum, Sm. 



On chalk-stones in damp places, amongst bushes ; rare. 



On the Undercliff near Folkestone, abundantly, Dec. 1876. 



The best guide to this species is the rosulate thallus and the 

 cells containing generally simple granula gonima, furnished with 

 one or rarely two nucleola. L. subtile has usually two or more 

 granula gouima m each cell. 



L. lacerum, Ach. Collema lacerum. (Jenner Fl. Tunbr.) 

 Amongst moss on damp banks ; not unfrequent. 

 Hungershall Eocks ; Jenner Fl. Tunbr. Eynesford ; Wrotham ; 



Ightham ; Folkestone. 

 L. subtile, Schrad. Collema subtile. (Jenner Fl. Tunbr.) 



On damp earth on grassy banks in shady lanes. Winter and 



early spring. 

 In the lane leading from Eusthall Common to the High Eocks ; 



Jenner Fl. Tunbr. Near Halstead ; between Hadlow and 



Dunk's Green ; Hythe. 



L. sinuatum {Huds). 



On damp, chalky, or limestone soil amongst mosses ; frequent. 



Wye ; between Deal and Sandwich, with abundant apothecia. 



A form of this plant, approaching to L. jjalmatiwi, Huds., 

 occurs near Sandwich, on the sand-hills. 



L. FRAGRANS (Svi.) 



On the thick bark of old trees ; rare. 



Kent, J/r. Borrer ; Leiyhton Lick. Fl. 



A specimen received from Eev. A. Bloxam, gathered on trees 

 near Folkestone, and labelled Collema microphyllum, appears refer- 

 able to this species. 



L. plicatile, Cromb. Collema plicatile, Ach. (Leighton Lich. Fl.) 

 '" On limestone walls, not unfi-equent ; the apothecia rather rare. 

 On a wall near Boxley Hill, Maidstone, with apothecia ; 

 Boughton Monclielsea ; near Fant Woods and Barming, 

 near Maidstone. 



