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NOUVELLES ARCHIVES DU MUSÉUM. 



Tribus I. — Scytonomese. 



1. Scytonema Nyl. (1). 



2. Gonionema Nyl. 



3. Pterygium Nyl. 



4. Amphidium ? Nyl. 



5. Spilonema Born. 



6. Asirosiphon? Nyl. 



7. Ephebe Fr. 



8. Epbebeia Nyl. 



9. Lichina Ag. 



10. LichinellaNyl. 



11. Homopsella Nyl. 



12. Lichiniza Nyl. 



13. Licbinodium Nyl. 



14. Leptogidium Nyl. 



Tribus II. — Stigonemese. 



Tribus III. — Glseocapsese. 



15. Euopsis Nyl. 



16. Pyrenopsis Nyi. 



17. Cladopsis Nyl. 



18. Collemopsidium Nyl. 



19. Phylliscum Nyl. 



20. Pyrenopsidium Nyl. 



21. Magmopsis Nyl. 



22. Synalissina Nyl. 



23. Synalissa Dur. 



24. Synalissopsis Nyl. 



25. Paulia Fée. 



26. Ompbalaria Dur. et Mont. 



27. Collemopsis Nyl. 



28. Psoropsis Nyl. 



29. Anema Nyl. 



Tribus IV. 



Collemese. 



30. Collema Ach. 



31. Leptogium Gray, etc. 



In his tribubus ad thallos fruticulosos a thallis foliosis aut substrato umbilicato-affîxis 

 removendos sectiones adstrui queunt ; similo modo in secunda tribu gênera in quorum 

 thallo adest axis centralis hyphis solis constituto [Lichina, Lichinella, etc.) separanda 

 sunt ab illis in quibus gonidia et hyphae in tota amplitudine thalli commiscentur. Genus 

 Lichina Ag. si rêvera sua gonidia e génère Algarum Calothrice Ag. assumit e secunda ad 

 primam tribum transferendum esset, conf. Bornet Rech. Gonid. Lich. I, p. 27. 



(1) Si rêvera ad Lichenes pertinet Scytonema Nyl., nomen mutandum nam adest Scytonema Ag. 

 genus Algarum prioritate gaudens. 



