BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 18. AFD. III. N:0 3. 37 



L. polytropa (Ehrh.) Th. Fr. 



Crusta riraoso-areolata vel e granulis vel areolis subin- 

 tegris vel creiiatis, eonfertis vel dispersis contexta, stramiiiea, 

 pallescenti-albida vel flavo-vireseens vel ob.soleta; apothecia 

 magnitudine varia, albido-, testaceo- vel carneo-lutescentia — 

 nigricautia ; margo proprius bene evolutns. ssepe crassus; sporse 

 ellipsoidete, 4. .5 — 7 a orassse. 



Syn. Lecanora polytropa (Ehrh.) Th. Fr. .-Krct. p. 110. 



Descr. (Jrusta crassiuscnla vel tennis, rimoso-areolata vel 

 e grannli-'! vel areolis snbintegris vel crenatis, eonfertis vel 

 dispersis contexta, straminea, pallescenti-albida vel flavo-vire- 

 scens vel obsoleta; apothecia primo plana, margine integerrimo 

 et spepe pallidiore cincta, persistenter plana vel mox vel demnm 

 convexa snbglol)osave, albido-. testaceo- vel carneo-lutescentia — 

 nigricantia; pars centralis excipuli bene evohita; stratum corti- 

 cale excipuli cras.siusculum (circ. 20— oO >j. crassnm), snperne 

 non attenuatum vel pars thallina vix evoluta, e strato corti- 

 cali inferne indicata et strato medullari nuUo; margo proprius 

 semper evolutns; theciuni incoloratum vel (apotheciorum nigri- 

 cantium) snperne fusco-olivaceum vel in smaragdulum vergens; 

 epitheciura granulosum lutescens; paraphyses K discretse, sem- 

 per totct' incoloratct, vix ramoste (1,.") — 2 y. crassse), apicibns non 

 vel leviter iucrassatis; sporde octonee, simplices, ellipsoidea', 

 9 — lo y. longse et (4,.') — );) — 7 y. crassse; pycnoconidia acicularia, 

 varie enrvata, 12 — 20 [j. lon ga et 1 y. crassa. 



1. Var. crusta crassiuscnla — obsoleta; apotbeciis, si crusta 

 evoluta, elevatis, Ifete coloratis, 0,4 — 2 y. latis; parte thallina 

 excipuli vulgo bene evoluta var. vulgaris Fw. 



Syn. Biatora polytropa a vnlgaris Fw.; Körb. Par. p. 154 (nomen). 

 Lecanora varia /? polytropa (Ehrh.) Th. Fr. Scand. p. 259 p. p. 

 L. polytropa n vulgaris Stein Fl. (1879) p. 137 (descriptio). 



1. F. crusta crassiuscnla vel tennis, vulgo straminea, niti- 

 dula vel interdum fere obsoleta; sporis 5 — 7 y. crassis (saxicola 

 vel lignicola). 



2. F. crusta crassiuscnla. pallescenti-albida. opaca vel in- 

 terdum obsoleta ; apotheciorum margine extus pallescenti-albido, 



