65 



caerulescente. Apothecia minora, vulgo vix 1 millim., 

 diu planiuscula marginataque. Hypothecium nigricans — 

 fusconigricans. Paraphyses arcte cohserentes, fere indi- 

 stinctse. Excipulum crassum, nigricans. Sporee magnse. 

 Gelatina hymenialis jodo persistenter csemlescens. Hy- 

 menium crassum. 



var. pet7'0sa (Am.)- L. petrosa a. nuda Th. Fr., Lich. 

 Scand. p. 511. L. inferior Nyi., FL 1869 p. 411, FL 

 1883 p. 108. 



Apotbecia nuda. — In regione coniferarum mix- 

 tarum : ad rupem talcaceam prope Sirkelä et prope Kit- 

 kajoki (F. Silen) in par. Kuusamo et in latere rupis 

 graniticse ad Kalkkivaara in Lapponia Sodankylensi. — 

 Summa pars hyraenii in his speciminibus sordide cya- 

 nescenti-, fuscescenti- vei smaragdulo-nigricans (in eo- 

 dem specimine varians). Asci subventricosi. Sporae 

 longitudine 0,020—0,024 millim., crassitudine 0,010 — 

 0,012 millim. 



var. glaucocarpa Arn. L. petrosa v. glaucocarpa Arn., 

 FL 1868 p. 36. L. cyaniza Nyi., FL 1872 p. 359, FL 

 1883 p. 108. L. petrosa ^. albosuffusa Th. Fr., Licb. 

 Scand. p. 512. 



Apothecia saltem pr. p. disco pruinoso. — Cum 

 prsecedente prope Kalkkivaara et Sirkelä. — Pars sum- 

 ma hymenii in his speciminibus smaragdulo- vei oliva- 

 ceo-nigricans. Hymenium circ. 0,100—0,120 millim. 

 crassum. Sporse longitudine 0,016 — 0,022 millim., cras- 

 situdine 0,010—0,012 millim. 



Ivalensis n. sp. 



Thallus albidus vei cinereo-albicans, tenuis, areo- 

 lato-dispersus vei obsoletus, hypothallo indistincto, me- 

 duUa jodo haud cserulescente, hydrate kalico fere im- 

 mutatus. Apothecia primo plana margineque elevato 

 vei urceolata, diu plana, demum saepe convexa immar- 

 ginataque, atra vei fere fuscoatra, nitida, etiam margine 

 nitido. Hymenium tenue, totum smaragdulo-caerulescens. 



5 



