2G4 NEW i,icnr.NS fkom the island of hodeiquez. 



14. L. sulflavicans, Nyl. — Thallus whitish or yellowish- white, 

 thin, granuloso-unoqual (K yellow) ; apotliecia tcstaceo-yellow or pale 

 testaceous, thalline margin thickish, or at length entire ; spores 8nae, 

 colourless, ellipsoid ; epithecium inspersed. Corticole. 



15. Pertusaria impallesccns, Nyl. — Thallus whitish, opaque, con- 

 tinuous, thinnish, somewhat smooth, rimose (K — ) ; apothecia colour- 

 less, 1-4 innate in dcpresso-convex thalline tuberculcs, the ostioles 

 black, punctiform ; spores 8ntc, colourless ; spermatia aciculari-l'usi- 

 form. 



16. Lecidea achroojiholis, Nyl. — Thallus pale, squamulose, the 

 squamiiles adnate, more or less contiguous, somewhat lobulate or cre- 

 natc at tlie circumference (K — ) ; apothecia black, plane, margined ; 

 spores 8noo, colourless, oblong, normally simple ; epithecium and 

 hypothecium somewhat purplish. On rocks. 



17. Z. coccocarpioidcs, Nyl. — This peculiar species presents ex- 

 ternally the appearance as it were of Coccocarpia moJijbdaia, but the 

 thallus is somewhat subshining, is not concentric on the surface, and 

 otherwise is gonidio. Apothecia black, innate, plane, imraarginate, 

 sometimes 2-8 confluent, dark within ; spores Snrc, ellipsoid or 

 oblong, 1 -septate. On rocks. 



18. X. melopta, Nyl. — Thallus white, thin, areolate (K yellow), 

 hypothallus black ; apothecia black, usually singly innate in the 

 areola), plane, immarginatc ; spores 8nse, colourless, ellipsoid ; para- 

 physes not distinct. Uelongs to the section of Z. j!;/fl«rtf. On rocks. 



19. L. immutans, Nyl. — Thallus ochraceo-rose-coloured, arcolato- 

 diffract, determinate (K yellow) ; apothecia small, black, superficial, 

 plane, obtusely margined, concolorous within ; spores Snte, brown, 

 ellipsoid, 1 -septate ; paraphyses slender. On rocks. 



20. Z. continens, Nyl. — Thallus cream-coloured or yellowish- 

 white, thinnish, continuous, areolato-rimulose on the surl'ace (K 

 yellow, medulla I dark-bluish) ; apothecia black, plane, margined, 

 dark within, the margin brownish; spores Sncc, brown, ellipsoid, 1- 

 Bcptate ; paraphyses nearly moderate. On rocks. 



21. L. covjigurans, Nyl. — Thallus j-ellowish-glaucous-white, 

 smooth, subrimulose, determinate (K yellowish) ; apothecia dark- 

 brown, innate, circumcised, at length 2-6 submoniliformly confluent ; 

 spores Snse, colourless, oblong, simple. Belongs to the section of L. 

 lavigata. 



22. Opegrapha dijjicilior, Nyl. — Tliallus whitish, macular ; apo- 

 thecia black, linear, subsimple, straight or subtiexuose, superficial ; 

 epithecium rimiform ; spores Snce, fusiform, 5-7-septate ; spermatia 

 thin, somewhat straight. On decaying stumps of trees. 



23. Arthonia phgUoica, Nyl. — Thallus white, macular ; apothecia 

 black, thin, erumpent, linear, somewhat simple or subastroid ; spores 

 8nDs, colourless, oblong, 3-septate, minute. Foliicole. 



24. A. acndritella, Nyl. — Thallus greyish-white, macular ; apo- 

 thecia blackish, thin, innate, somewhat dendritrically divided or 

 simpler ; spores 6-8n8B, colourless, oviformi-oblong, 3-septate. Corti- 

 cole. 



25. Glyphh tricosula, IS'yl. — Thallus white, very thin, blackish- 

 limited ; apothecia black, sub-ciesio-pruinose, dendroideo-divided, 

 sparingly-branched ; spores 8nic, oblong, 4-locular. Corticole. 



