E. WAINIO, LICHENES PROPE PITLEKAl COLLECTl. 57 



2. Pertusaria. 

 Sect. 1. Lecanastrum. 



1. P. oculata (Dicks.) Th. Fr., Lieh. Scand. (1871) 

 p. 307; Almqu., Lieh. laktt. Sib. (1879) p. 34, 39, 43, 45, 47, 

 49, 56, Lieh. Kust. Beringsm. (1887) p. 520, 522, 526; Nyl., 

 Enum. Lieh. Fret. Behr. (1888) p. 45, 54, 87 (5, 8); Wain., 

 Lieh. Exp. Amdriip (1905) p. 130. Lichen oculatus Dieks.,^ 

 Fasc. See. Crypt. Brit. (1790) p. 17. Lecanora oculata Aeh., 

 Syn. Lieh. (1814) p. 148; Th. Fr., Lieh. Aret. (1860) p. 103, 

 Lieh. Spitsb. (1867) p. 23; Tuek., Syn. North Am. Lieh. (1882) 

 p. 197. Pionospora Darb., Die Deutsch. Pert. (1897) p. 612. 



Paraphy.sibus bene ramosis et ramoso-eonnexis, crebre 

 intrieatis, hypothecio tenui, circ. 0,030 — 0,040 miUim. erasso, 

 pseudoparenehymatieo. ex hyphis irregulariter eontextis con- 

 glutinatis formato, ascis eyhndrieis et hymenio erasso (erassit. 

 circ. 0,200 — 0,2.30 milhm.) cum Pertusaria congruens. Goni- 

 dia simphcia, cystococeacea. Stratum medulläre excipuli jodo 

 non reagens. Hymenium jodo intense persistenter caerule- 

 scens. Epithecium fusco-fuligineum, KHO sordide violaseens, 

 HNO3 violaseens. Hypotheeium albidum, eellulis parvis, 

 membranis modiee inerassatis, jodo non reagens. Parathe- 

 cium circ. 0,030—0,040 millim. crassum, ex hyphis eonglutina- 

 tis formatum. Paraphyses 0,001 — 0,0015 millim. crassae, 

 apice haud inerassatae. Sporae 8:nae, monostiehae aut rarius 

 distichae, decolores, simplices, membrana sat tenui (0,002 

 millim. crassa), ellipsoideae, apicibus obtusis aut rarius ro- 

 tundatis. 



Ad terram arenosam et turfosam et supra muscos prope 

 pagum Pitlekai, in peninsula Jinretlen et in regione orientem 

 versus a sinu Koljutsehin sita. Fert. 



2. P. dactylina (Aeh.) Nyl., Lieh. Nov. -Granat. 

 (1863) p. 446, Lieh. Lapp. Or. (1866) p. 140, Fl. 1885 p. 603, 

 Enum. Lieh. Fret. Behr. (1888) p. 8, 21, 64, 68; Th. Fr., Lieh. 

 Scand. (1871) p. 310; Almqu., Lieh. laktt. Sib. (1879) p. 36, 

 47, 49, Lieh. Kust. Beringsm. (1887) p. 521, 522, 526; Tuck., 

 Syn. North Am. Lieh. (1882) p. 213; Deichm. Branth et Groenl., 

 Groenl. Lieh. -Fl. (1888) p. 510; Deichm. Branth, Lieh. Isl. 

 (1903) p. 211; Cumm., Lieh. Alaska (1904) p. 100. Lichen 

 dactylinus Aeh., Lieh. Suec. Prodr. (1798) p. 89. 



