CHARACTERES DIAGNOSTIC! 



ORDINUM, TRIBUUM ET GENERUM 



Ordo I. — GOLLEMAGE^l 



Thalli substantia madefacta gelatinosa (gonidia vario modo goniinia- 

 lia); apothecia gymnocarpica; epithecium et asci persistentes. — Liche- 

 nes mi] go olivaceo-fusci. 



Tribus I. — Licheste^e. 



Thallus fruticulosus; gonidia subnostochoideo-concatenata : apothecia 

 terminalia, lecanorina. 



1. Lichina, spora? simplices. 



Tribus II. — Colleme^e. 



Thallus foliaceus; gonidia concatenata; apothecia superficialia, 

 lecanorina aut subbiatorina. 



* Thallus epidermide distincta cellulis tetra-hexagonalibus arcte junctis 

 subregularibus una série dispositis formata praeditus. 



2. Leptogiopsis, sporee transversim divisas. 



3. Leptogium, spora? transversim et longitrorsum divisa?, parenchy- 



inatica?. 



** Thallus epidermide distincta orbatus aut cortice pluriseri aliter confuse 

 celluloso praeditus. 



4. Collema, sporae parenchyniatica?. 



5. Synechoblastus, spora? transversim divisa?. 



6. Physma, spora? simplices. 



