OS THE RAT.ER LICHENS OF RLAIR ATIIOLE. 17" 



43. L.mesotropoides. Nyl.— Like the preceding, gathered only 

 very sparingly in the same locality. 



41. L. plana. Lamm. = L. lithophiloidet, Nyl. — Olini in litt. 

 Sparingly on old walls in Glen Fender, "thallus thin, rimose, 

 greyish-white, evanescent." 



4;>. I., sarcogyniza. NYL.— Athalline on quartzose boulders, near 

 the summit of Cairn Gowar. N.B. The true thallus of this species, 

 which I have recently detected at hill of Ardo is " subdeterminate, 

 thickish, rimoso-areolate, or somewhal continuous, sordid, greyish " 



4(>. L. aglaea. var. Crombiei. Jones.— Plentiful on boulders on 

 the N.E. brow of Craig Tulloch. 



47. L.subfurva. Nyl.— Not uncommon on micaceous stones of 

 walls on Craig Tulloch and in Glen Fender, but often sterile. 



48. L. coufusula. Nyl.— Very sparingly gathered on micaceous 

 stones of a wall on Craig Tulloch. 



49. L. nigxo-glomerata. LEIGHT.-Xot uncommon on quartzose 

 stones on the summit of Cairn Gowar, but rather a Lecanora than 

 a Lecidea, closely allied to L. leucophcea, and probably but a sub- 

 species of that very variable lichen. 



50. L. Gevrensis. Th Fos. var. prolata. Nyl.— Extremely rare, 

 on quartzose stones on summit of Cairn Gowar. 



51. L. deparcula. Nyl.— Like the preceding, very rare, in the 

 same habitat and locality, only a single small specimen having been 

 found. 



52. L. lugubxis. Smmeft.— Plentiful on micaceous stones of walls 

 on Craig Tulloch and in (den Fender, but with the thallus often 

 sterile. 



53. L. atxobadia. Nyl.— Very sparingly gathered on a quartzose 

 boulder, near the summit of Cairn Gowar. 



54. L. lenticularis. ACH., and its var. rhyparocarpa. Nyl.— On 

 rocks of Craig Tulloch, sparingly. 



55. L. occellata. Flk. — Apparently rare, having been seen only 

 on a single boulder of Craig Tulloch. 



56. L. citrinella. Ach. — Very rare, on turfy soil, on a wall of 

 Craig Tulloch. 



57. Xylographa parallela. (Acn.)— Plentiful on old pales at Pass 

 of Killiecrankie ; var, pallens, f. alliptica. Nyl. Very sparingly 

 in the same locality. 



58. Lithographa tesserata. (D.C.) — Extremely rare, only a single 

 specimen having been seen on a small fragment of a calcareous 

 stone amongst detritus on the summit of Cairn Gowar. 



59. Opegrapha Turneri. Leight.— On the trunks of ash at base 

 of Craig Tulloch, probably frequent. 



Git. O. confluens. (Ach.)— Apparently rave on calcareous rocks 

 of Craig Tulloch. 



