JONES — ON IRISH LICHENS. 287 



spores as in Arthonia (the spores, how- 

 ever, are fuliginous), and has always 

 true slender paraphyses. 



No. 401. — Verrucaria Dufourii.* Locality not named. Taylor. 



The stone is the Dunkerron limestone ; the 

 plant is also at Glenarm. 



No. 382. — Verrucaria gemmata f. minor (Carr.). Trees, near Lime- 

 rick. J. C. 



No. 366. — Verrucaria gemmifera (Tayl.). Lough Bray. T. J. 



Endococcus by Nylander. Parasitic on a 

 Lecidea, which has neither asci nor 

 spores. I do not recognise the Lecidea, 

 and it must remain undetermined. 



No. 397. — Verrucaria littoralis (Tayl). 



So named by Taylor, but not entered in 

 " Flora Hibernica." This on examina- 

 tion also proves identical with No. 312, 

 Verrucaria consequens (Nyl). 



No. 396. — Verrucaria mucosa (Wahlb.). Dunkerrin. Tayl. 



So named by Taylor, but not entered in 

 " Flora Hibernica." The plant proves 

 identical with No. 312, V. consequens. 

 (Nyl.). Glenarm. 



No. 404. — Verrucaria muralis (Ach.). Old walls near Sandford. T. J. 

 This is probably the true V. muralis (Ach.), 

 and the specimen is good, as showing 

 the thallus perfect. Nylander does not 

 at present consider this a good species ;f 

 it certainly varies extremely. It may 

 be seen as on this specimen with a thick 

 areolated thallus, having the apothecia 

 immersed, or without thallus, or nearly 

 so, with apothecia prominent. 



No. 354. — Verrucaria nigrescens (Pers.) Flat limestone about Dublin. 

 T.J. 

 However different in appearance, this and 

 No. 356 are forms of the same plant. 



No. 356. — Verrucaria nigrescens (Peis.), form. On granite on the walls 



about Dublin. T. J. 

 No. 384. — Verrucaria olivacea (Pers.).% Killaloe, Co. Clare. J. C. 



* "Fl. Hib.," p. 92. f " Synops. Pyren.," p. 32. % " Fl. Hib.," p. 89. 



