46 ANGIOCARPOUS LICHENS. 



15. V. MURALis, Ach. Sporidia in asci 8, linear- oblong, 



uniseptate, singularly wrinkled by the enclosed ulti- 

 mate spores, greenish-yellow. Plate XX. fig. 1 . 



Verrucaria MURALis a., Ach. Metli. 115. 1803 ; L. Univ. 288 ; 



Syn. 95. 



Borr. E. Bot. Suppl. 2647, fig. 2. 



Tnes, L. Ref. 436 ? 



Book. Br. FL ii. 154. 



~ r^y/. ri. Hib. pt. ii. 91. 



On the mortar of the bridge below Llyn Bodlyn, 

 Merionethshire ! Bev. T. Salwey. Sussex ! Mr. Borrer. 



I presume this to be the true V. muralis, inasmuch as 

 it agrees with the figure and description of E. Bot. Suppl. 

 in the perithecium being entire. Another plant grows 

 on mortar which has smaller apothecia, and a dimidiate 

 perithecium, more or less spreading at the base, the nu- 

 cleus enclosed in a very pale brown tunic, the sporidia 

 oblong without any septum, minutely granulated. This 

 is probably not unfrequently confounded with V. muralis, 

 from which the above characters keep it distinct. It is 

 inserted hereafter under the name of V. jpatula, 



16. V. LiTORALis, Tat/L MS. Sporidia in asci 8, oblong, 



uniseptate, pale. Plate XX. fig. 2. 



Vekrucaria MURALIS vaT. Ta^l. Fl. Hib. pt. ii. 92. (1836.) 



Maritime rocks, Kerry ! Dr. Taylor, in herb. Salwey. 

 On rocks and stones liable to be covered by the tide, 

 Dunkerron ! Br. Taylor, in herb. Borr. 



Thallus thin, tartareous, continuous, pale, greenish- 

 grey. Apothecia numerous, crowded, sessile, the base 

 only immersed in very slightly elevated portions of the 

 thallus, very prominent and peculiar in form, teatlike, 

 depressed on the summit, with a rather large depression 

 or pore, black, shining. Perithecium thick, and entire. 



