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616. ArAopyrenia (s. Mesopyrenia) comeoceHa Mtill. Arg. Thallus 

 tenuis, mox denudatus, lacteus v. albidus, linea nigra cinctus; 



gonidia seriata, breviuscula ; apothecia 



3-4 

 10 



mm. lata , dimidiata, 



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priinumTelata, dein nuda v. inferneirregulariter thallino-vestita, 

 perithecium hemisphaericum , alte convexum, vertice demum 

 minute umbilicatum; nucleus hyalinus; paraphyses intricatim 

 6onnexae; asci S-spori; sporae in ascis subbiseriales, hyalinae, 

 circ. 21 fi longae et 6 — 8 ^ latae, 2-loculares, loculi lateraliter 

 leviter sed distincte repandi. — Ab affini A, plmiorbi^ s. Verru- 

 carta planorbi Ach. Syn. p. 92 diffex't apotheciis minoribus, nudis, 

 non deplanatis et sporis minoribus. — Corfcicola prope Apiahy 

 in Brasilia; Puiggari n. 1004. 



617. Arthopyrmia (s. Mesopyrenia) indusiata Mtill. Arg. Thal- 

 lus cum epidermide quasi maculam cinereo-albidam efFusam 

 formans; gonidia chroolepoidea, pauca; apothecia pro sectione 

 majuscula, V4 — Vi ™^- ^^^ orbicularia, valde depressa, 3-plo 

 latiora quam alta, dimidiata, nigra, extus velamine thallino 

 tenuissimo subtranslucenti indusiata et nigro-cinerascentia facta; 

 paraphyses copiosae, connexo-ramosae ; asci 8-spori; sporae in 

 ascis biserialesj hyalinae, 25—32 ju longae, cum halone 7—11 fi 

 lataCj 2-loculares, loculi ad latera saepe distincte repandi. — 

 Corticola ad Morro del Oro prope Apiahy in Brasilia: Puiggari 

 n. 1388. 



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* * Apothecia depresso-globosa, basi completa sed plus 



minusve attenuata. 



618. Arthopyrmia (s. Mesopyrenia) Nieieriana Miill. Arg. Thal- 

 lus epidermide mox rupta quasi maculam albam subfarinosam 

 nigro-cinctam formans; gonidia serialia breviuscula; apothecia 

 -^ mm. lata, basi tenuiore completa v. basi subinde deficientia 

 et dimidiata, nigra, hemisphaerico-convexa, vertice late pyra- 

 midali-acutato foveolata, nonnisi basi rotundato-obtusa thallino- 

 tecta, caeterum undique nuda et pure atra et nitidula; para- 

 physes copiosae et tenellae at parcius quam vulgo in affinibus 

 connexo-ramosae; sporae octonae in ascis irregulariter biseria- 

 les, hyalinae, circ. 22 — 30 fx longae, 6 — 9 ft latae, 2-loculares5 

 utrinque rotundato-obtusae, loculi lateraliter repandi. — Species 

 in sectione sat speciosa, apothecia majuscula, nigra et solitarie 



densiuscule in thallo albo dispersa. 

 Nietner n. 30 (ex hb, Hampeano). 



Corticola in Ceylonia: 



