373 



Syn. Verrucaria punctiformis et epidermidis Auctt. p. p. 



Verrucaria punctiformis /9. atomaria Srnrft. Suppl. p. 137. 

 Art/iopyrenia epidermidis Mass. Rich. p. 167. 

 Arthopyrenia grisea Koerb. Syst. p. 36'. 



Verrucaria rhyponta Nyl. Pyr. p. 60 (p. p.). 

 Exs. Zw. n. 107. Hepp n. 88. 



Ad corticem betulae et alni passim usque in Finmarkiam ; circa Me- 

 sen (Rupr.). 



Sporae in ascis obovato-clavatis luteolo-hyalinae, elongato-oblongae, pri- 

 mitus 2- dein 4-blastae, 0,ou 10 mm. longae et 0,oo3 4 mm. latae. De- 

 scriptio Nylanderiana differt sporis "oblongis 1. oblongo-ovoideis, long. 0,oi8 23, 

 crass. 0,005 7 mm." Melius quadrat Massalongiana "sporis ellipticis, 4 6-locti- 

 laribus, diam. long. 0,oi52 mm. transv. 0,00306 mm." 



Aith. Fumago (Wallr.) Koerb. Syst. p. 370 in Lapponia meridional! 

 vix deest, nam specimina vidi lecta ad corticem Salicis Capraeae prope templum 

 rusticura Tornoense. Hujus sporae sunt in ascis inflatis octonae, tetrablastae, e- 

 longato-oblongae, luteolo-hyalinae, O.oao 22 mm. longae et O.ooe mm. latae. 



83. Leptorhaphis Koerb. 



Thallus crustaceus, tenuissimus 1. subnullus, hypophloeodes; apothe- 

 cia erumpentia, amphithecio corneo-carbonaceo atro, apice obsolete pertuso, 

 perithecio tenuissimo , hyalino; paraphyses indistinctae, floccoso-conglutinatae; 

 sporae aciculares, 2 8-blastae, incoloratae. 



Sporis tantummodo ab Arthopyrenia distinctum genus. 



1. L. epidermidis (Ach.): crusta nulla 1. tenuissima, subleprosa, cine- 

 rascente; apotheciis elliptico hemisphaericis, subnitidulis, minutis, ostiolo sub- 

 tilissime umbilicato tandem pertuso. 



Syn. Verrucaria epidermidis Ach. Univ. p. 276, Syn. 89 (excl. .*). 



Leptorhaphis ozyspora Koerb. Syst. p. 371. 



Exs. Rbnh. n. 117. 



In epidermide betulae per totam baud dubie regionem Scandinavicam, 

 quamvis hactenus e Nordlandia modo (herb. Smrft.) et Nyborg Finmark. 

 orientalis viderim; in Lapponia Kemensi (Herb. Mus. Fenn.). 



Asci lineari-clavati, sporae aciculares, 4 8-blastae, rectiusculae 1. vulgo 

 curvulae, luteolo-hyalinae, 0,02s 37 mm. longae et 0,oos mm. latae. 



Nomen epidermidis multis rationibus retinendum est, nam et optime sta- 

 tionem indicat et hanc respici suadet descriptio Achariana. Alias plantas pro 



47 b 



