38 NORMAN, NOV. GEN, ET SP. LICHENUM FLOR^ NORVEG. 



mai'is» Arthopyrenice Personii (Mass.) Koerb. Parerg. distingui- 

 tur basi ascorum obtusa, nunquam pedunculata. 



16. ArtJiopyrenia ( Verriicaria) dirhyponta Norm. 

 Thallus late expansus, sublimitatus, epipliloeod^s, niger, 



Strato corticali e laminulis paren cliymatosis, cellulis rotundatis, 

 externis fiiscis, interioribus pallidis p. p. discretis, gelatina jodo 

 rubente, gonidiis globosis intense viridibus. Apotbecia depresse 

 convexa poro parvulo, atra, opaca, vulgo 0,2 1 — 0,25 mm. lata. 

 Parapbyses grumulosse. Spprse biloculares, oblongo-ellipticse, in- 

 terdum altera extremitate vix sensibiliter crassiore, angustae, 12 

 — 15 II longse, in ascis abbreviatis, inferne ventricosis, c. 45 f^i 

 longis. 



Hab. ad triincos alni prope Kjosen parochiae Lyngen. 



Simillima Artliopyrenicv rliypontce^ sporis 2-locularibus an- 

 gustioribus distincta. 



17. ArtJiopyrenia (Verriicaria) olivatra Norm. 



Tliallus epipliloeodes, ettusiis, olivaceo-ater ut maculse mi- 

 nores, acutissime limitatse, substrato eroso innatse, strato corti- 

 cali cellulis angulosis, nuUibi reagente, gonidiis copiosissimis glo- 

 meratis, Isete viridibus. Apotliecia convexa vel subsemiglobosa 

 poro regulari, atra, c. 0,2 1 mm. lata. Parapbyses grumulosae. 

 Sporse biloculares, oblongse protoplasmate subbacillari, 15 — 18 u 

 longse, in ascis inferne ventricosis, 34 — 36 /t longis. 



Hab. ad corticem Alni glutinosse in Isdalen prope Bergen. 



18. Arthopyrenia (Verrucaria) umhripicta Norm. 

 Thalhis epipliloeodes, tenuissimus, sublimitatus, nigricans, 



demum ssepe detersus, pro majore parte e strato corticali lami- 

 nuloso, cellulis angulosis, vel moniliformi, nuUibi jodo reagente, 

 circum apothecia gonidia globosa Isete viridia tegente. Apotbe- 

 cia semiglobosa poro regulari mediocri, c. 0,2 mm. lata. Para- 

 pbyses non distincta», parca^. Sporse biloculares, oblongae, sub- 

 bacillares,. ad septum facile secedentes, 14 — 16 a longa?, in ascis 

 demum constanter pyriformi-globosis vel subglobosis, 22 — 30 // 

 longis. 



