34 E. A. Vainio, Pyrenocarpeae. 



niemi in Tammela (A. Kullhem), Padasjoki (Vain.), Tammi- 

 joki in Luhanka (Vain.). Tavastia bor.: Norola in Jyvaskyla 

 („V. latebrosa f. obtectula" Nyl. sec. determ. Nylanderi in 

 Vain. Fl. Tav. Or., 1878, p. 120). Karelia bor.: Lieksa et 

 Vieki in par. Lieksa (Vain.), Kopras in Nurmes (Vain.). 

 Lapponia Tulomensis: Kola (N. I. Fellman). 



Thallus totus plectenparenchymaticus. Gonidia pleurococ- 

 coidea, globosa simpliciaque diam. O.oio — O.006 mm, parce etiam 

 ellipsoidea, membrana distincta. In specimine orig. Pyrenulae 



margaceae (Wahlenb.) Ach. e Lapponia in herb. Ach. perithecium 

 hemisphaericum, fuligineum etiam basi, integrum, lat. O.50 — O.35 

 mm, late thallino-obductum, vertice anguste denudato, apothecia 

 basin versus sensim dilatata, thallus obscure cinereo-fuscescens, 

 sat tenuis, hypothallo nigricante tenui partim limitatus. — Speci- 

 mina perithecio subdimidiato instructa ut f. obtectula (Nyl.) 

 designari possunt. In specim. orig. V. latebrosae f. obtectulae 

 Nyl. (in Vain. 1. c.) in eodem thallo perithecium variat basi late 

 albidum et integre fuligineum, haud anguloso-dilatatum aut raro 

 membranaceo-dilatatum, sporae sec. annot. Nyl. long. O.025 — 0.027, 

 crass. O.oio — O.011 mm, thallus sat tenuis, subcontinuus, cinereo- 

 fuscescens, opacus, hypothallo indistincto. 



Var. obtegens Vain. 



Thallus modice incrassatus aut sat tenuis, continuus r 

 leviter rimulosus, subluridus, opacus, hypothallo indistincto. 

 Apothecia verrucas formantia 0.4 — 0.3 mm latas, subhemi- 

 sphaericas, basin versus sensim dilatatas, strato thallino 

 omnino obductas aut rarius demum apice valde anguste 

 subdenudatas et tenuiter obvelatas. Perithecium hemi- 

 sphaericum, fuligineum, basi late aut anguste albidum 

 deficiensve. Sporae „long. O.ois — O.024, crass. O.oos — O.on mm" 

 sec. annot. Nyl. 



Distr. Supra rupern in rivulo ad Tali prope Helsing- 

 i'orsiam (Vain.). 



Secundum Nylander, cui hanc plantam a. 1874 communicavi, 

 est „V. latebrosa f. obtectula Nyl." Revera in memoriam revocat 

 V. latebrosam Koerb., quae praesertim lateribus perithecii angu- 

 loso-productis ab ea differt. — Thallus superne colore fere sicut 

 in n. 133 in Klincks. et Valette Codes Coul., inferne albidus. 

 Apothecia crebra. Perithecium haud distincte anguloso-productum. 



