397 



sus; verrucae 1 / 2 — 7s mm * latae, simplices et monocarpicae (v. 

 hinc inde duplices et triplices), densinscule confertae, turgide 

 alte hemisphaerieae, ambitu et superne obtuse torquato- v. un- 

 dulato-gibbosae, nunc late obtusae, nunc apice obtuse truncato- 

 concaviusculae, superficie laevigatas; ostiolurn obsolete emergens 

 et subimpressum, punctiforme, nigrescens, demum majusculum 



etfuscum; sporae in ascis 8-nae, 2-seriales, circ. 45 — 50 jx longae, 

 intus laeves. — Habitu simul ad P, gracilem et P. perlusellam 

 aceedit, sed sporae multo minores, verrucae peculiariter torquato- 

 subirregulares; a. posteriore insuper verrucis vulgo 1-ostiolatis 

 differt. ■ — Corticola in Brasilia meridionali prope Barbacenam: 

 Glaziou (1883J. 



ft ferax\ verrucae cum thallo glauco-albidae, dense 

 eonfertae, varie confluentes et pressione aut confluentia incompleta 

 late angulosae, turgiclae, obtusae, raro truncato-obtusae, pauciores 

 tantum late fusco-1-ostiolatae (sporae non differunt). — Corti- 

 cola in Brasilia meridionali ad Novum Friburgum: Glaziou 

 (1882), 



b. Flamcantes* 



Pertusaria Socotrina Mull, Arg. Diagn, Lich. Socotr. p; 6; 

 sporae intus laeves; saxicola in insula Socotra: Dr. Schweinf. 

 et Prof. Balfour. 



Pertusaria x'antkoplaca Mfl.lL Arg. L. B. n. 502; sporae intus 

 laeves; in Australiae prov. Queensland prope Toowoomba: 

 Hartmann n. 32. 



Pertusaria flavens NyL Enum. Lich. Husn, p. 12; sporae 

 laeves; corticola in Guadeloupe: Husa. n. 471; in insula St, 

 Thomas: Breutel, et in insula Socotra: Balfour. 



Pertusaria leioplacetta NyL Syn. Lich. Nov. Caledon. p. 32; 

 sporae intus laeves. •— Corticola in Guadeloupe: Husn. 485, 

 prope Bahiam ad Caytet6: Martius (hbrMonac), prope Rio de 

 Janeiro: Glaziou ("sine no.) et prope Barbacenam in Brasilia 



meridionali: Glaziou; et demum in Mexico prope Orizabam: 

 Fr. Miiller. 



763. Pertusaria subtruncata Mull. Arg. ; thallus albido-flavus, 

 erassiuseulus , laevis aut sublaevis, demum diffracto-ramosus, 

 margine zona angusta nigricante limitatus; verrucae 1 mm. 

 latae, hemisphaericae , 2— 5-nuc(eatae (non raro duplices et 

 triplices), vertice planiusculae, ostiolis subconfertis pallidis aut 

 fusculis ornatae, demum vertice magis deplanato-truncatae et 



