918 SOCIÉTÉ BOTANIQUE DE FRANCE. 
Tableau de la classification des Lichens, selon M. Nylander. 
Classis LICHENUM. 
Familia I. CoLLEMACEI. 
Genera. 
. Gonionema Nyl. 
. Spilonema Born. 
. Ephebe Fr. 
. Lichina 4g. 
. Pterygium Nyl. 
Trib. 1. Licuiner. ..,.....,,, 
. Synalissa DR. 
. Omphalaria DR. et Mont. 
Collema Ach. 
. Leptogium Fr. 
. Obryzum Wallr. 
. Phylliscum Nyl.. 
O O7 + ppm ce5pt- 
Familia II. MYRIANGIACEL. 
Trib. 1. MynraNGIEI........ 4, Myriangium Mont. et Berk. 
Familia III. LICHENACEL. 
2. Calicium Ach. 
(2: Trachylia Fr. 
"ttt n Coniocybe Ach. 
4° series. Trib. 4, CALICIEL +... 
EPICONIODEI. 4. Sphinctrina Fr. 
Trib. 2. Seu xgoPHOREL...... 41. Sphærophoron Pers. 
2a series Trib. 3. BÆOMYCEL ......... 1. Bæomyces Pers. 
CLADONIODEI Trib. 4. CLapontæt.. ......,.. 1. Cladonia Hoffm. 
UM Trib. 5. STEREOCAULEI.. ....« 4. Stereocaulon Schreb. 
/Trib. 6. ROCCELLEI ........«. 4. Roccella Bauh. 
Trib. 7. SIPBULEI. ......... 1. Thamnolia Ach. 
; 1. Usnea Hoffm. 
Trib. 8. Usneer.. ....... "T f 
3* series. 9. Chlorea Nyl. 
RAMALODEI. | 4. Alectoria Ach. 
Trib. 9. RAMALINEI......... , 2. Evernia Ach. 
3. Ramalina Ach. 
1 . 
\Tri . u (1. Cetraria Ach. 
rib. 10. CETRARIEI . *::*| 2. Platysma Hoffm. 
1. Nephroma Ach. 
/ Trib. 11. PELTIGEREI, ....... 4 2. Peltigera Hoffm. 
3. Solorina Ach. 
1^ series " Sticta Ach. 
Mb D o . Ri lia DN. 
PHYLLODEL Trib. 12. PARMELIEL. .. ... ) Hi Ricasoiia Ach. 
. \4. Physcia Fr., Nyl. 
Trib. 13. GYROPHOREL. ...... 4. Umbilicaria Hoffm. 
