212 REV. J. M. CaOMBTE ON LICHEXS COLLECTED 



8. Parhelia perforata, Ach, [=P. conspersa]. 



On rocks : sterile. (There is no specimen present of P. Icevi- 

 gata^ enumerated by Dr. Stirton.) 



9. Phxscia elayicans (Str.) \=Alectoria epicTirysa^^tvn,^ sp. n.]. 

 On the ground : sterile. 



10. P. leuco:mela (Z.) [^ = Alectoria sulcata]. 



On the ground : sterile, mixed up with P. Jlavicans. 



11. P. adscensionis {Ach, Syn, p. 179). 



On rocks : sterile, associated with Scytonema. 



12. Heppia meiolepis, Cromh. [= Endocarpiscum aterrimum, 

 Strn , sp. n., nomen ineptum, nam nihil atrum habet thallus]. 

 Thallus obscure olivaceo-fuscus, squamulosus, squamulis sattenui- 

 bus (latit. circiter 0*5 millim.), planiusculis, velfertilibusconvexi- 

 nsculis, subsparsis ; apothecia incoloria endocarpoidea (visa solum 

 epitheciopunctiformi, juniora) ; thec^e polysporae turgidse; sporse 

 incolores breviter ellipsoidese, longit. 0003-0*004 millim., crassit. 

 0*0020-0 0025 millim. ; paraphyses gracilescentes. lodo gelatina 



^ 



hymenialis cserulescens, dein vinoso-fulvescens. 

 On rocks : sparingly seen. 



13. Lecaxora (PLACODiuii) lepidoplacxtm, -ZVyZ., sp. n. [ = 



JPlacodium elegans], '* Affinis Placodio murorum^ sed thallo 

 (vitellino-aurantiaco) deplanato squamuloso-adnato, squamulis 

 ambitu lobulato-incisis. Apothecia saturatiora (latit. circiter 0*5 

 millim.), margine thallino integro cincta ; sporae longit. 0*008- 

 0*0011 millim., crassit. 0*OO5-O-0O7 millim. Spermatia longit. 

 00025-0*0030 millim., crassit. 0*0007 millim. 



Comparandum Placodium sulsolutum, Nyl. (Pyr. Or. p. 50), 

 mox differt squamulis thalli minus evolutis et sporia majoribus." 



•Nyh in UtL 



On rocks : sparingly associated with the preceding species. 



14. L. (Placodium) flatorubens, Nyl. 

 On rocks : apparently frequent. 



15. L. pxeacea (Aci,). 



On rocks : very sparingly {Jide Dr. Stirton). 



16. L. TINCE^■TI^'A, iVy?., sp. n, [=i. sulfusca^ van atrynea']. 

 ** Thallus albidus tenuis areolato-rimulosus (K + flavescens); apo- 

 thecia pallida opaca (latit. circiter 0*5 millim.), margine sat tenui 

 integro cincta ; sporse 8nse, ellipsoideae,longit. 0009-0011 millim., 



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