Acta Societatis pro Fauna et Flora Fennica, 49, N:o 2. 125 



terna et sporis subsimilis est his speciebus, quare haec omnia forsan 

 rectius ad Polyblastias pertinent. 



Stirps 2. Sporae 1-septatae. 



4. Th. pyrenophorum (Ach.) Th. Fr. 



Lich. Spitsb. (1867) p. 49; Arn. Lich. Tirol XII (1886) p. 68, 72, 

 XXV (1893) p. 372, XXVI (1896) p. 105, XXX (1897) p. 36; A. Smith 

 Mon. Brit. Lich. II (1911) p. 297; Zschacke Hedwigia LXII, 1920, p 

 126 p. p. Verrucaria purenophora Ach. Lich. Univ. (1810) p. 285, Syn 

 Lich. (1814) p. 94; Nyl. Prodr. Lich. Gall. (1857) p. 428 (182) p. p., Exp 

 Pyrenoc. (1858) p. 26 p.p., Lich. Scand. (1861) p. 273 (excl. var.); Norrl 

 Fl. Kar. Oneg. II (1876) p. 39; Lamy Exp. Lich. Cauter. (1884) p. 109 

 Verrucaria Dufourii Leight. Brit. Ang. Lich. (1851) p. 51, tab. XXII f. 4 

 (non D. C). V. Borreri Leight. 1. c. p. 76. Acrocordia galbana Krem- 

 pelh. Fl. 1855 p. 70. Thelidium galbanum Koerb. Syst. Lich. Germ. 

 (1855) p. 354, Parerg. Lich. 4 Lief. (1863) p. 347 p. p.; Jatta Fl. It. Crypt. 

 Lich. p. 830. 



Exs. Hepp Flecht. Eur. II (1857) n. 441. — Anzi Lich. Rar. Lan- 

 gob. VI (1861) n. 238. — Erb. Critt. It. XXVIII n. 399 (1399) sec. Sti- 

 zenb. Lich. Helv. (1882) p. 241. — Arn. Lich. Exs. (1881) n. 899 a, b. - 

 Bagl. et Ca^est. An. L. Vals. IV n. 61 (sec. Jatta 1. c). 



Thallus tenuis aut sat crassus et materia calcaria 

 immixtus, albidus aut cinerascens, laevigatus, hypothallo 

 indistincto aut linea hypothallina obscurata limitatus. Apo- 

 thecia basi substrato immersa, verrucas formantia subhemi- 

 sphaericas, 0.8 — 0.4 mm latas, nigras, nudas, apice vulgo 

 impresso, impressione 0.2— 0.3 mm lato, ostiolo saepe 

 foveolam formante. Perithecium depresso-subglobosum, 

 superne fuligineum, dimidiatum. Sporae ellipsoideae ob- 

 longaeve, 1-septatae, long. O.022 — O.036, crass. O.on — O.014 

 mm. 



Distr. Ad saxa dolomitica in Lishmajarvi in Karelia 

 Onegensi (Norrl.). 



Gonidia pleurococcoidea, simplicia globosaque aut 2 — 4- 

 cellulosa (in C1H bene visa). Perithecium basi albidum aut (sec. 

 Leight. 1. c.) interdum pallidum. Nucleus depresso-globosus, jodo 

 violascens. Periphyses sec. Zsch. 1. c. longae, tenues. Paraphyses 

 in gelatinam diffluxae, striis indicatae. Sporae 8:nae, distichae, 

 decolores aut interdum sordide subcoloratae, apicibus rotundatis 



