DUKIXG THE * CHALLENGEE ' EZPEDITIOJT. 217 



bus. Sporse oblongse S-septatse, longit. 0*016-0*023 millim., cras- 

 sit. 0*006-0'007 millim. Spermatia arcuata, longit. C 

 millim., crassit. O'OOOS millim." — Nyl. in litt. 



012^ 



IONIA EUBELLA, * INEERIUSCULA, Nyh \_ = A, Velata, 



], " Differt ab -4. rubella praesertim sporls nonnihil 



' minoribus,0'023-0-030 millim. long, 0'009-0-015 millim. thick.' 

 iV^Z. in Utt, 



On the bark of trees : very sparingly seen. 

 ^ (N.B. The specific name velafa, Strn., has long ago been given 



by Flotow to another species.) 



26. Vereucarta EtTi>ERELLA, iV^?., sp. n. " Similis V. ruderum, 

 Bed sporis longe minoribus, longit. 0*014-0019 millim., crassit. 

 0-009-0012 millim."— iV^yZ. in Utt. 



On calcareous rocks, very sparingly, associated with Lecidea 

 semiusta, 



27. Endococcus thalamita, JVi/L, sp. n, " Pyrenia habet in- 

 coloria vel dilute fuscescentia immersa (latit. circiter 0*1 millim., 

 vel minora) in thalamio Lecidece insperat(S ; thecse polysporas ; 



X sporse fusca? ellipsoidese leviter 1-septatae, longit. 0*007-0010 



millim., crassit. 0*003-0004 millim. lodo gelatina hymenialis 

 vinose rubescens. Apothecia parasita occupata sine paraphysibus, 

 thecis, etc."— -^Z. in Utt. 



On the bark of trees, sparingly, associated with Pertusaria 



pustulata^ Ach. 



(Mnt 



On branches : probably not uncommon. 



Azores (Furnas). 

 1. Clado]s'ia fimbriata, SJpm. \_ = G.pyxidata, var.]. 



On rocks : sterile. 



iV^/, [ = (7, sq^uamosa] 



On the ground : sterile and bi 



3. EocCEIiLA PHTCOPSIS, Ach. 



On rocks ? barren. 



4. Sticta pulmokacea, AcTi. 

 On trees : infertile. 



5. S. BAM^CORIilS {Sw.). 



On trees: fertile. 



