150 



— var. diaiihora (Ach.) Fr. Opegrapha diaphora Nyi.?, FL 

 1873 p. 206 (sine descriptione). Norrl. & Nyi., H. L. 

 F., n:o 49. 



Ad lignum putridum juniperi prope Sirkelä iu re- 

 gione coniferarum mixtarum paroecise Kuusamo. — Apo- 

 thecia speciminis hujus oblongaB, vulgo raature plana, 

 demum vulgo radiata, persistenter marginata, nuda. 

 Excipulum fusco-nigricaus. Hymenium parte superiore 

 obscure fuscescens. Hypothecium lutescens — luteo- 

 fuscescens. Sporse fusiformes, obtusa), 5-septat£e, rectaj 

 vei curvulae, incolores, interdum morbose infuscatse, lou- 

 gitudine 0,021—0,023 millim., crassitudine 0,006 mil- 

 liin. Asci clavati. Paraphyses distincta). x^pothecia 

 jodo intus haud cserulescentia, hymenium et hypothe- 

 cium et sporse violascentes. Spermatia breviter cyliu- 

 drica, recta, longitudine 0,003 — 0,004 millim., crassitu- 

 dine 0,0015-0,002 millim. 



O. Persoonii Ach., Prodr. (1798) p. 19 (excl. synon.) sec. 

 hb. Ach. Opegrapha Persoonii /3. aporea Ach. idem 

 specimem nominatum est in Meth. (1803) p. 17, (hoe 

 specimem e Suecia ad formam thallo albido, apotheciis 

 umbonatis pertinet). O. gyrocarpa Flot., Fl. 1825 p. 

 345, sec. Stizenb., Lich. Helv. p. 220; Koerb., Syst. 

 Germ. p. 280; Nyi. in Wainio, Tav. p. 119; Norrl. & 

 Nyi., H. L. F. n:o 50. O. saxicola v. gyrocarpa 

 Stizenb., Fl. 1865 p. 76, Steinbew. Opegr. p. 29 

 (Nov. act. Acad. Leopold.-Carol. T. 32 P. 1). O. Per- 

 soonii Almqv., Scand. Opegr. p. 17. O. Persoonii Ach. 

 in Meth. p. 17 et synouymon ejus O. rupestris Pers. 

 sec. hb. Ach. apothecia habet oblonga, parva, epithecio 

 rimiformi, thallum albidum, neque ad hanc speciem 

 pertinet. Ne O. saxicola Ach., Syn. (1814) p. 71, qui- 

 dem huc pertinet, sec. hb. Ach. apotheciis subinnatis, 

 agglomeratis vei aggregatis, epithecio rima)formi, thallo 

 albido, membranaceo discrepans. 



Thallus vulgo sorediosus, colore varians, vulgo oli- 

 vaceus vei cinerascens. Apothecia subrotunda, nuda, 



