442 Dr. K. Stizenberger on the Saaxicolar Species of Opegrapha. 
tegente. Hymenium in hypothecio fusco e paraphysibus crassis, 
septatis ramosis et ascis clavatis (60 mik. longis, 17 mik. latis) 
compositum. Spore 8®, hyaline vel fusce, 3-septatze, oblongo- 
ellipticee (15 mik. longze, 5 mik. crassee). Spermatia cylindrica, 
recta, in spermogoniis punctiformibus, nigris. 
Ad saxa dolomitica prope Hichstadt. 
Var. gyrocarpa (Fw.). 
O. gyrocarpa, Fw., Korb. O. gyrocarpa « arenaria, Id. Pg. 251. O. ru- 
oie v. rufescens, Fw. O.rupestris,Fr. Exs. Fw.79 4, B,c; Korb. 
229. 
Thallus lineis nigris determinatus, tenuissimus, fusco-cinereus (szepe 
Chroolepo couspurcatus), nonnunquam obliteratus. Apothecia 
dispersa, sessilia, rotundata vel rotundato-elliptica, rarissime elon- 
gata, nigra; epithecio plano vel plicato per exceptionem concavo, 
margine tenui, rotundato. Hymenium hyalinum (80-100 mik. 
altum) in hypothecio nigro-fusco, e paraphysibus crassis liberis 
et ascis late claviformibus (65 mik. longis, 15 mik. latis) compo- 
situm. Sporee elongato-ellipticee vel clavate, rectze vel curvule, 
3- (rarissime 1- vel 4—6-) septatee (20-25 exceptione 30 mik. 
longee, 4—5 mik. crassee), hyaline. Spermatia cylindrica, recta 
6 mik. longa, 5 mik. crassa), in spermogoniis punctiformibus, 
nigris. 
In saxis primitivis Germaniz, Hiberniz. 
Var. Persoont (Ach.). 
O. Persooni, Ach., Ny. 
A typo differt, thallo griseo leproso-soreumatico, apotheciis plicatis, 
confluentibus, sporis vulgo utrinque acutiusculis. 
In Scandinavia, Gallia, Franconia superiori. 
8. Opegrapha lutulenta, Nyl. Prodr. Gall. 153. 
(Non vidi.) 
[‘‘Thallus opacus, sordide rufescens effusus, satis tenuis, fere leprosus, 
integrior rimose diffractus; apothecia atra, nuda, superficialia, 
ellipsoidea vel oblongo-difformia, crasse marginata, epithecio in 
vetustioribus dilatato-concaviusculo vel plano, in junioribus rimi- 
formi, intus nigricantia; spore oblongz, 3-septate, longit. 
0:015-0°018 millim., crassit. 0°006-0°007 millim.; hypothecium 
crasse nigrum, paraphyses discretz. Gelatina hymenea partim 
cerulescens, partim vinose fulvescens. 
“Ad lavam prope Agde Galliz meridionalis., Affinis O.grumulose.’’ | 
9. O. endoleuca, Nyl. ibid. 
(Non vidi.) 
[“Thallus tenuis, albus; apothecia superficialia, lineari-lanceolata, 
persistenter marginata, epithecio concaviusculo, albo-suffuso, 
intus albida; spore oblongo-ovoidez, 3-septatz, longit. 0-013- 
0-016 millim., crass. 0°005-0:006 millim.; hypothecium dilute 
