Acta Societatis pro Fauna et Flora Fennica, 53, N:o 1. 241 



immarginata. Hypothecium decoloratum et parte superiore 

 pallidum. Hymenium parte superiore subviolaceo-fuscescens 

 (aut decoloratum in apotheciis pallidioribus sec. Stizenb.), 

 KHO non reagens. Perithecium pallidum. Sporae anguste 

 fusiformes, „long. O.ois — O.026, crass. O.003 — O.004 mm" (sec. 

 annot. Nyl.), vulgo 3-septatae, raro pluri-septatae (sec. Th. 

 Fr. cet). 



Distr. Ad muscos et cortices lignaque vetusta et 

 terram turfosam arenosamque crescit. Var. venusta (L. 

 subfuscula Nyl.) in territorio nostro nondum collecta. 



Apothecia lat. O.3 — O.7 mm, crebra, opaca, nuda. Peri- 

 thecium 0.060 — 0.080 mm crassum, „modo margine saepe paullum 

 fuscoviolaceum" (sec. Th. Fr.), hyphis radiantibus, conglutinatis, 

 membranis modice incrassatis, cavitatibus vulgo ellipsoideis, 

 0.003 mm crassis. Hypothecium irregulariter contextum, parte 

 inferiore pachydermaticum, parte superiore sat leptodermaticum 

 et crebrerrime contextum, pallidum et in KHO dilutissime sub- 

 violaceum. Hymenium O.055 — O.oeo mm crassum, jodo intense 

 persistenter caerulescens (in specim. orig. v. venustae ex Islandia, 

 etiam sec. Stizenb.) aut demum vinose rubens (sec. Th. Fr. et 

 Nyl., praesertim in v. leucococcoide). Epithecium KHO non reagens 

 („partes obscuriores apoth. distinctius in violaceum vergunt" sec. 

 Th. Fr.). Paraphyses sat arete cohaerentes (in KHO laxius), 

 simplices, crass. O.0015 mm, apice O.003 — O.005 mm, baud gelati- 

 nosae. Sporae partim sat similes sporis Bacidiarum, interdum 

 etiam ,,5-septatae" (et in „L. leucococcoide" Nyl. 3 — 7-septatae 

 sec. Nyl.), „long. 0.oi5|— O.021 mm" (sec. Th. Fr.), verisimiliter poly- 

 stichae. Conidangia (pycnidia) in specim. orig. B. subfusculae 

 thallo immersa, puncto nigro indicata, vertice subviolaceo-fusce- 

 scente (colore sicut in epithecio), ceterum albida. Sterigmata 

 long. 0.006 — 0.010, crass. O.002 mm, pauci-septata, apicibus stylo- 

 sporas efferentibus. Stylosporae (macroconidia), aciculares, vulgo 

 subrectae, decolores, 3 — 2 — 1-septatae aut simplices, altero apice 

 obtuso, altero attenuate, long. O.oso — 0.036 (raro — O.025) mm, 

 crass. 0.0015 aut vix O.002 mm (abundanter visae, nee dubiosae). 

 Gonidia cystococcoidea, subglobosa, tantum simplicia visa, diam. 

 0.012 — 0.008 — 0.004 mm, membrana sat tenui. 



Var. leucococcoides (Nyl.) Vain. Lecidea leucococcoides Nyl. 

 Fl. 1869 p. 296; Fl. Dan. tab. 2878 f. 2 (sec. Th. Fr. Lich. Scand. II 

 p. 378). 



16 



