Systematica. 57 



membranaceus subtus villosus venis cyphellisve saepius variegatus. Stratum gonimicum in- 

 dolis variae: e gonidiis aut viridibus (solitis) aut caerulescentibus (collogonidiis) constans. 



14. Sticta (Scbreb.) Delis., Fr. Apothecia submarginalia elevata subinde 

 nigricantia. Sporae e fusiformi aciculares, bi — quadri — pluriloculares, fuscescentes v. incol. 

 Spermatia oblonga, apice utroque incrassata; sterigmata multiarticulata. Thallus frondoso- 

 foliaceus varie lobatus orbiculatus v. dein protensus coriaceo-cartilagineus, subtus villosus 

 cyphellis maculisve saepius interspersis. Stratum gonimicum e gonidiis solitis aut collogoni- 

 diis constitutum. — z. B. St. silvatica Acb., St. pulmonaria Ach., St. herbacea Acb. 



15. NepbromaAch. Apotbecia reniformia thalli lobis productis postice 

 innata margiue subintegro disparente. Sporae subfusiformes , quadriloculares, fuscesccentes. 

 Spermatia oblonga apice utroque incrassata; sterigmata multi-articulata. Thallus frondosus 

 subtus villosus nee venosus. Stratum gonimicum e gonidiis solitis aut collogonidiis consti- 

 tutum. — z. B. N. laevigatum Ach., N. tomentosum (Hoffm.). 



16. Peltigera (Willd., Hoffm.) Fee. Apothecia peltaeformia thalli lobulis 

 productis, raro margini, antice adnata margine lacero-crenato. Sporae e fusiformi aciculares, 

 quadri — pluriloculares, demum incol. Thallus frondosus subtus villosus venosusque, Strato 

 corticali ibidem nullo. Stratum gonimicum e gonidiis viridibus aut saepius caerulescentibus 

 (collogonidiis) constans. — z. B. P. canina Hoffm., P. venosa Hoffm. 



17. Solorina Ach. Apothecia orbicularia tballo antice innata margine 

 evanido. Sporae ex ellipsoideo fusiformi -oblongae biloculares fuscae. Thallus frondosus 

 subtus villosus venosusque, Strato corticali ibidem interrupto aut nullo. Stratum gonimicum 

 collogonidiis aut viridibus aut caerulesoentibus constitutum. — z. B. S. saccata Ach. 



Fam. V. Pannariei. Thallus horizontalis , frondoso -foliaceus dein multifidus v. 

 squamulosus coriaeeo-membranaceus, hypothallo pannoso demum evanido. Stratum gonimicum 

 indolis variae, e gonidiis viridibus (solitis) aut saepius caerulescentibus (collogonidiis) constans. 



18. Heppia Nag. Apothecia orbicularia in thallo saccato - depressa v. . 

 dein prominula margineque demisso subeineta. Sporae ovoideo - oblongae , simplices incol. 

 Spermatia ellipsoidea; sterigmata simpliciuscula. Thallus frondoso-squamulosus, monophyllus 

 matrici arete adnatus hypothallo obsolescente. Stratum gonimicum e collogonidiis consti- 

 tutum. — z. B. H. Despreauxii Mont. 



19. Pannaria Delis. emend. Apothecia subscutellaeformia v. lecanorina 

 v. zeorina v. dein pseudobiatorina. Sporae ovoideo -ellipsoideae v. oblongae, simplices v. 

 rarius bi — quadriloculares v. rarissime muriformi-pluriloculares, fuscescentes aut saepius de- 

 coloratae. Spermatia obloaga; sterigmata multiarticulata. Thallus subfoliaceus e monophyllo 

 laciniato -multifidus squamulosusve, subinde crustaceo-compactus. Stratum gonimicum e 

 gonidiis aut saepius collogonidiis constans. 



Psoroma Ach.: P. hypnorum (Fr.), P lanuginosa (Ach.). 



Eupannaria: P. ruUgmosa Ach., P. brunnea (Sw.), P. lepidiota Th. Fr., P. 

 granatina (Sommf.), P. haematopis (Th. Fr.). 



Endocarpiscum Nyl.: P. Guepini (Delis.). 



Coccocarpia Nyl.: P. plumbea Ach. 



Lecothecium Trev.: P. nigra (Huds.), P. Petersii Tuck., P. byssina (Hoffm.). 

 Fam. VI. Collemei. Thallus frondoso-foliaceus v. dein crustaeeo-diminutus, rarius 

 fruticuloso-ascendens v. alectoriiformis , cartilagineo- v. coriaeeo-membranaceus , humidus in 

 plerisque subgelatinosus , hypothallo fere semper obsoleto. Stratum gonimicum plerumque 

 inordinatum dissolutumve, e collogonidiis v. varie dein aggregatis v. saepissime moniliformi- 

 concatenatis et in pulpa mucilaginosa nidulantibus constans. 



Subfam. 1. Lichinei. Thallus fruticulosus filamentosusve , collogonidiis aut 

 axem demum dissolutum sistentibus aut in Stratum substipatis. Medulla plus minus paren- 

 chymatica. Apothecia globosa varie defornjatave v. pseudo-biatorina. 



20. Ephebe Fr., Born. Apothecia sublateralia globosa disco coaretato 

 punetiformi-impresso. Sporae oblongo-ellipsoideae simplices incol. Spermatia oblonga; ste- 

 rigmata subsimplicia. Thallus filamentosus decumbeils ramosus nigricans, collogonidiis ma- 





