32 E. A. Vainio, Pyrenocarpeae. 



Var. latebrosula (Nyl.) Vain. 



Thallus modice incrassatus aut sat tenuis, rimosus, 

 obscure griseo-cinerascens (humidus magis obscuratus), lae- 

 vigatus, opacus, saepe inferne obscuratus, ceterum ad am- 

 bitum hypothallo indistincto. Apothecia crebra, verrucas 

 formantia 0.2 — O.25 mm latas. Perithecium fuligineum, inte- 

 grum, subhemisphaericum, lateribus haud attenuato-productis, 

 semiimmersum aut amphithecio thallino basin versus sensim 

 dilatato obductum, vertice subconvexo, nigro, sat late aut an- 

 guste demum aut fere mox denudato, ostiolo minuto. Sporae 

 ellipsoideae, „long. O.016 — O.ois, crass. O.oos — O.009 mm" sec. 

 annot. Nyl. 



Distr. Tavastia austr. : Ad saxa dioritica in flumine 

 Tammijoki in par. Luhanka (Vain.). 



Sec. annot. Nylanderi, cui a. 1873 specimen hujus plantae 

 communicavi, „vix differt a V. latebrosa" et nominatur „ V. (ae- 

 thiobola*) latebrosula Nyl." Intermedia est inter V. latebrosam 

 et V. aethiobolam var. griseocinerascentem, a qua posteriore vix 

 nisi apotheciis partim basin versus amphithecio thallino obductis 

 differt. Gonidia globosa, diam. O.007 — O.005 mm, rarius ellipsoideo- 

 subglobosa, vulgo simplicia, raro 2-cellulosa. 



Var. griseocinerascens Vain. 



Adj. Lich. Lapp. II (1883) p. 175; Havaas Beitr. Norv. Flecht. I 

 (1909) p. 35. 



Exs. Havaas Lich. Exs. Norv. (1901) n. 54. 



Thallus modice incrassatus aut partim sat crassus, 

 rimosus, cinereus vel griseo-cinerascens, opacus, hypothallo 

 parum evoluto. Apothecia immersa aut semiimersa. Peri- 

 thecium lat. O.2 — O.25 ( — O.4) mm, vertice demum prominente 

 nigroque, amphithecio thallino nullo distincto aut demum 

 leviter prominente. Sporae long. O.ois — O.026, crass. O.010 — 

 O.014 mm. („long. O.016 — O.032, crass. O.oos — O.012 mm" sec. 

 annot. Nyl.). 



Distr. Karelia bor.: Ad saxa dioritica littoralia in 

 Porosaari lacus Pielisjarvi (Vain.). Ostrobotnia Kajanensis: 

 Ad saxa chloritica in rivulo prope Saarijarvi in Kianta 

 (Vain.). Lapponia Enontekiensis: Kilpiseno (J. P. Norrlin). 



