48G REV. J. M. CROMBIE ON NEW BRITISH LTCIIENS. 



as a distinct species belonging to the group of L, contigtia, Frs. 

 Ou furtlier examination, however, and having regard to the thai- 

 line reaction, he says, in a letter recently received, that it ought 

 rather to be referred to i. tessellata, Flk., as a variety, if not 

 merely an unusual state of this species. 



14. Lecidea sarcogyniza, Nyh in Flora, 1868, p. 4/5. Thalhis 

 obscurely greyish green or subohvaceous, opaque, thin, indetermi- 

 nate : apothecia black, plane, margined, the margin usually flexuose, 

 obscure within : spores eight in thecse, colourless, oblong, 'OOZ-'OU 

 millim. long, about '003 millim. thick : thalamium colourless, para- 

 pbyses of medium thickness, club-shaped and blackish at ajiex : hy- 

 pothecium under the hyraenium distinctly brown : perithecium 

 blackish or black : hymeneal gelatine intensely blue with iodine. 



On granitic stones of wall by railway, a little beyond the Bay 

 of Nigg, in Kincardinesliire, August 1868. Apparently very rare 

 in that locality, though I gathered it more plentifully, but 

 athalline, in the subsequent autumn, on quartzose boulders of 

 Morrone, Braemar. It follows the depressions and chinks in the 

 stone, and is apt to be overlooked as a mere state of i. litliaphila^ 

 Ach., to which it is closely allied. 



15. Lecidea Crombiei, Jones in Hit. ; NyL in Flora, 1868, p- 345. 

 Thallus greenish sulphur-coloured, of medium thickness, uneven, 

 rimose diffractate or subareolate, limited by the black hypotballus, 

 which is everywhere visible between the areola : apothecia black, 

 of medium size, innate, somewhat convex, immarginate, obscurely 

 greyish within : spores eight in thecae, colourless, elliptical, •010-*012 

 millim. long, "OOe-'OOr millim. thick : thalamium blue, epitheeium 

 bluish black, hypothecium colourless or faintly reddish : paraphyses 

 not well discrete : hymeneal gelatine blue with iodine (the thecae more 

 intensely coloured at apex). >.. 



On serpentine rocks of the Khoil, in Braemar, July 1865: This 

 species was first distinguished as such by the late Admiral Jones, 



Mr 



Kerry 



in Glen Callater. Specimens from the last of these localities 

 show its near affinity to i. agJcea, Smmrf., of which, in my own 

 opinion, it is to be considered only a variety. 



16. Lecidea aphanoides, Nyl. in Flora, 1868, p. 470. Thallus 

 obscurely olive-grey, thin, subverrucose, or subgranulose, unequal, 

 indeterminate, or subevanescent ; apothecia black, small, convex, im- 

 marginate, naked, white within : spores eight in thecjc, colourless, 



