34° 



A. ZAHLBRUCKNER 



sed in superficie cephalodiis dispersis obsitus, superne corticatus, cortice an- 

 cTusto, 18—24 |x crasso, paraplectenchymatico, cellulis superpositis 2 — 3, lumine 

 plus minus rotundo, parietibus crassiusculis; stratum gonidiale infra corticem 

 situm et eo paulum latius, continuum, cellulis laete viridibus, globosis, 9 — 12 ji. 

 latis, membrana distincta cinctis; medulla alba, ex hyphis intricatis, non inspersis 

 formata, hyphis ad 3 [x crassis, leptodermaticis, inferne in stratum angustum 

 nigricantem abeuntibus; cephalodia 1 — 1,8 mm lata, depressa, in ambitu rotun- 

 data vel irregularia, in superficie paulum inaequalia, subfarinosa vel granulosa, 

 coerulescenti-cinerea vel plumbea, ex hyphis dense intricatis, 1,7 — 1,8 \i. latis, 

 leptodermaticis, increbre septatis formata, gonidia concatenata et hinc inde glo- 

 merulosa, pallide olivacea, rotundata vel oblonga, rarius subirregularia, 5— 8 (J. 

 lata, membrana tenuissima cincta includentia. 



Apothecia lecanorina, sessilia, usque 2 mm lata, ad basin bene constricta, 

 copiosa et approximata, rotunda vel rotundata; discus in juventute pruinosus, 

 demum nudus, alutaceus vel alutaceo rufescens, opacus; margo thallinus cras- 

 siusculus, crenulatus, prominulus et plus minus inflexus, extus strato corticali, 

 ex hyphis intricatis et inspersis formato, usque 20 \l crasso, ad basin latiore 

 abductus, gonidia copiosa, usque ad verticem marginis penetrantibus includens; 

 excipulum dimidiatum, decolor, ex hyphis tangentialibus et dense conglutinatis 

 formatum; hymenium decolor, tantum superne anguste fuscescens et inspersum, 

 caeterum purum, I e coeruleo lutescenti-obscuratum; hypothecium lutescens, 

 molle, inferne substipitato-productum et strato medullari thalli superpositum; 

 paraphyses filiformes, ad 2 \x latae, conglutinatae, simphces, eseptatae, ad apices 

 haud latiores; asci oblongo- vel ellipsoideo-clavati, hymenio paulum breviores, 

 ad apicem rotundati et membrana bene incrassata cincti, 8-spori; sporae in 

 ascis biseriales, decolores, simplices, ellipsoideae vel ovali-ellipsoideae, mem- 

 brana tenui et sublaevi (subindistincte granulosa) cinctae, 11 — 15,5 \i longae et 

 8,5 — 9 {*■ latae. 



Pycnoconidia non visa. 



Masatierra: Cordon Chifladores, 350 m, auf Drimys-Rmde (C. und I. 

 Skottsberg). 



Das plakodiale Wachstum des Lagers und das Vorhandensein von Zephalo- 

 dien kennzeichnen die Art gut. 



P. pholidotum Mull. Arg. 



Mull. Arg. in Flora, vol. LXXI, 1888, p. 45 (excl. syn.). — Parmelia p/ioli- 

 dota Mont, in Annal. Scienc. Nat., Bot., ser. 2, vol. IV, 1835, p. 91 et apud Gay, 

 Hist Fisic. y Polit. Chile, Bot., vol. VIII, 1852, p. 146; Johow, Estud. Flora Juan 

 Fernandez, i8g6, p. 200. — Pannaria pholidoia Nyl. in Annal. Scienc. Nat., Bot., 

 ser. 4, vol. Ill, 1855, P- 1 ^ 2 > Synops. Lich., vol. II, 1863, p. 30; Hue in Nouv. 

 Archiv., du Museum, ser. 4, vol. X, (1908) 19^9, p. 171. 



Masatierra: Auf Drimys-R'mde, ohne nahere Standortsangabe (BERTERO 

 no. 1623, 1626), Cordon Chifladores, 350 m, auf Stammen der Robinsonia thu- 

 rifera; Rabanal, auf Robinsonia gracilis; Valle Colonial, Quebrada seca, 435 m, 

 auf Dendroseris micrantha; Portezuelo, beim SELKIRK-Denkmal, 590 m, auf 

 Robinsonia gracilis; Cordon Salsipuedes, 625 m, auf Margyricarpus (C. und I. 

 Skottsberg). 



