90 NEW BRITISH LICHENS. 



On young beech trees, near Lyndhurst, in the New Forest. 

 (Crombie, April, 1873.) Belonging to the same section as the 

 preceding. 



6. Lecidea hexnipolioides. Nyl. — Thallus greyish-green, thin, 

 subopaque, rugulose, indeterminate ; apothecia pale or livid, convex, 

 immarginate, colourless within ; spores 8 na?, oblong, usually some- 

 what curved, 3-septate, 0,012-18 m.m. long, 0,0045 m.m. thick; 

 paraphyses not very well discrete, slender, epithecium colourless ; 

 hymeneal gelatine, especially the theca3, at first bluish, then tawny 

 wine-coloured or reddish with iodine. 



On rocks, Jersey (Larbalestier). Distinct from L. arceutina* 

 hemipolia, Nyl. 



7. Lecidea caxneo-glauca. Nyl. — Thallus glaucous-green, thin, 

 opaque, subleprose, whitish, limited at the circumference, K — 

 C — ; apothecia sordid, or pale flesh-coloured, convex, immar- 

 ginate, whitish within ; spores 8 nse, attenuato-fusiform, 1-5 sep- 

 tate, 0,025-40 m.m. long, 0,0030-35 m.m. thick ; epithecium and 

 hypothecium colourless ; paraphyses slender, not very well discrete ; 

 hymeneal gelatine bluish, and then tawny with iodine. 



On siliceous stones, Jersey (Larbalestier). Belonging to the 

 section of L. luteola. The spermogones are pale, urceolate, with 

 oblong spermatia. 



8. Lecidea scotinodes. Nyl. — Thallus dark-greyish, thin, un- 

 equal, areolato-rimose, subdeterminate ; apothecia black, convex, 

 immarginate, whitish within ; spores 8 na?, colourless, oblong, 

 simple, or 1-septate, 0,014-18 m.m. long, 0,005-6 m.m. thick ; 

 paraphyses moderate, incrassate at the apices, dark bluish-black; 

 hypothecium colourless ; epithecium K — , faintly violet ; hyme- 

 neal gelatine bluish, and then wine- red with iodine. 



On micaceous rocks, Craig Tulloch, Blair Athole (Crombie, 

 August, 1871). Allied to L. scotina (Krb.) from which it differs 

 by the above characters. 



9. Lecidea contiguella. Nyl. — Thallus whitish, thin, areolato- 

 rimose, surrounded at the circumference by a black hypothallus, 

 K — ; apothecia black, adnate, plane, margined, within concolorous; 

 spores 8 nse, colourless, oblong, simple, -0,011-15 m.m. long, 

 0,0045-55 m.m. thick ; epithecium dark-bluish, hypothecium 

 brown ; paraphyses moderate ; hymeneal gelatine bluish, then 

 wine-reddish with iodine. 



On quartzose boulders, Morrone Braemar (Crombie, August, 

 1872). Differs in the above characters from L. lactea, Flh. 



10. Lecidea deludens. Nyl. — Thallus whitish, firm, thin, rimose, 

 K + pale yellowish, surrounded by a very thin, black hypothallus ; 

 apothecia black, innate, circumcised, plane, obtusely margined, 

 concolorous within ; spores brown, 1-septate, 0,022-27 m.m. long, 

 0,008-13 m.m. thick ; paraphyses discrete, regular, moderate, 

 clavate, brownish, hypothecium brown ; hymeneal gelatine intensely 

 bluish with iodine. 



