49 



7. limbata, (Sra.) Ach. 



8. scrobiculata, (Scop.) Ach. 



9. pulmonaria, (L.) Ach. 



10. glomerulifera, (Lightf.) Delis. 



11. herbacea, (Huds ) Delis. 



X. FARM ELI A, Ach. Fries. Apoth. scutelliformia, primitus clausa, 

 margine thallo concolori. Stratum carbonaceum sub disco nul- 

 lum. Thallus foliaceus aut crustaceus, subius discolor L adnatus, 

 absque venis et cyphellis 



SECT. I. Hypothallus thallo foliaceo discrete adnatus. 



Sub-sect. I. IMBRICARIA, Fr. Discus membranaceus, nudus, strato 

 gonimo impositus. Thallus foliactus^ membranaceus, imbricatus. 



Ser. I. Glances centes. 



1. perforata, (Jacq.) Ach. 



2. crinita, Ach. (P. perforata, ft. Fr.) 



3. perlata, (L.) Ach. 



4. tiliacea, (Ehrh.) Fr. 



5. scnrtea, Ach. 



6. JBorreri, Turn. . 



/3. rudecta, Tuck. (P. rudecta, Ach.) 



7. saxatilis, (L.) Ach. 



8. placorodia, Ach. 



9. aleurites, Ach. 



10. colpodes, Ach. 



11. terebrata, (Hoffm.) Mart. (P. diatrypa, Ach.) 



12. physodes, (Hoffm.) Ach. 



13. enteromorpha, Ach. 



Ser. II. Olivace o- fuse a. 



14. olivacea, (L.) Ach. 



15. Fahlunensis, (L.) Ach. 



16. stygia, (L.) Ach. . 

 ft. lanata, Fr. 



Ser. III. Ochroleucix. 



17. caperata, (L.) Ach. 



18. conspersa, (Ehrh.) Ach. 



19. incurva, (Pers.) Fr. 



20. ambigua, (Wulf.) Ach. 



21. centrifuga, (L.) Ach. 

 Ser. IV. CitrincE. 



22. parietina, (L.) Fr. 

 . foliacea, (Fr.) 

 ft. laciniosa, Duf. 

 y polycarpa, Fr. 

 *. lobulata, Fr. 



. subcrustacea, (Fr.) 

 . Crustacea, (Fr.) 

 n citrinella, Fr. 



23. chrysophthalma, (L.) Ach. 



24. Columbiana, Tuck. Ms. (Borrera, Nutt.) 



Sub-sect II. PHYSCIA, Fr. Discus ceraceus, subpruinato-velatus r 



