Anatomie und Systematik der Gloeolichenen. S!) 



Farn. II. Phylliscei Nyl. 



Nyl. Class. I p. i). — Mass. Neag. lieh. p. 7. 



Thallus gonidiis majorÜKis {Chroococco turyido vel affiiiibus), sal- 

 tern in niai'O'ine tlialli rubricosis. membraua gelatinosa crassa involutis. 

 solitariis vel didymis vel perpaucis in cavitatiljus niagnis telœ hypha- 

 i'uni densissime anastomosantium congestis. 



I. Pyrenopsidiuni (Nyl.) Forss. 



ïliallus crustaceus, granulosus. Apothecia lecanorina, iuterdum disco 

 puuctiformi; paraph jses plus minus distiuctae; sporae Sinae, simplices, hyalinse,. 

 ! oblongae. Spermogonia spermatiis ellipsoideo-oblongis. 



II. Phyllis cum Xyl. 



Thallus monophyllus, umbilicatus. Aj)othecia pi/roiodea^ in thallo in- 

 ckisa; paraphy^ses indistinct« ; sporœ 8 — 16:n£e, simplices, hyalinte, oblongœ. 

 Spermogonia spermatiis acicidarihus, curvatis. 



Farn. III. Omphalariei (Mass.) Forss. 



Mass. Neag. p. 6. — Sched. crit. p. 1-4. 



Thallus gonidiis XantJiocapsw olivaceis instriictus. 



I. Collemopsidium Nyl. 



Tliallus crustaceus, tenuis, areolato-granulosus, gonidia Xanfhocapsce 

 olivacea et telam hypharum teneram atque stepe fere inconspicuam coutinens. 

 Apothecia minutissima, pi/i'e/todi'n, perithecio dimidiate cincta; asci et para- 

 physes parcœ; sporœ S:na3, 2-cellares, hyalin«, oblongae (sœpissime immaturse). 

 Spermogonia incognita . 



II. Enchylium Mass. 



Thallus crustaceus, areolato-granulosus, e gonidiis Xanthocapsœ et hy- 

 phis extus telam pseudopareuchymaticam formantibus, intus ramosis et laxe 

 percurrentibus compositus. Apothecia primo clausa, delude urceolata, lecano- 

 rina; Sporte numerosœ, miuutissimae, late ellipsoidese, simplices, hyaUnse. Sper- 

 mogonia spermatiis oblongo-eUipsoideis. 



III. Psorotichia (Mass.) Forss. 



Thallus crustaceus, squamulosus vel sa?pissime areolato-granulosus, areo- 

 lis interdum subcorallinoideis vel furfuraceis, e gonidiis XantJioeapsœ conglo- 



