— 3 — 



nuius marginata, discus rubello-fuscus et thallus diffracto-areolatus. 

 — Saxicola in Montevideo. 



33. Lecanora sarcoptella Nyl. Syn. Lich. Nov. Galed. p. 28; 

 cortieola. 



34. Lecanora calcarea v. pruinosa; L. conlorta a viridula *** 

 pruinosa Krplh. Lichenfl. Bay. p. 17G; saxicola. 



35. Urceolaria scruposa v. cinereo-cœsia; U. cinereo-cœsia 

 Acli. Univ. p. 342; terricola. 



36. Pertusaria meridionalis v. xanthostoma Miill. Arg. L. B. 

 n° 338; cortieola. 



37. Pertusaria cinerella Miill. Arg-. ; thallus et verrucae virenti- 

 cinereae, ille tenuis, laevis, ab hisfereomninotectus ; verrucae mono- 

 carpicae, saepe confluenti-duplices, hemisphaericae, vertice obtusae, 



basi— mm. lata sensim in thallum abeuntes, sublaeves, vertice 



ostiolo nigerrimo opaco prominente terminatae; asci2-spori: sporae 

 cire. 110 p longae et 35 p latae, laeves. — Inter P. Ceylonicam 

 Miill. Arg. et P. albidellam Nyl. locanda est. — Bamulicola prope 

 Montevideo. 



38. Lecidea (s. Biatora) russula Ach. Univ. p. 197 ; cortieola. 



39. Lecidea (s. Lecidella) Angolensis Miill. Arg. Lich. Afr. occ. 

 n° 21 ; saxicola. 



40. Lecidea (s. Eulecidea) montevidensis Miill. Arg. ; thallus 

 cinereo-v.subcaesio-albidus, diffracto-areolatus ;areolaesubcontiguae, 

 crebre granuloso-divisœ.unde thallus primafrontetenuiter granularis; 

 apothecia 2/3-4/5 mm. lata et minora, atra, opaca, ad[>resso-sessi- 

 lia, plana, tenuissime v. demum indistincte marginata, pro parte 

 glomeratiin conferta ; epithecium virenti-nigrum, hypothecium 

 nigro-fuscum, superne virens, lamina hyalina; paraphyses conglu- 

 tinatae; sporae in ascis8-nae. oblongo-ellipsoideae, 12-16 /./longae et 

 6-7 y/ latae. — Ob thallum albidum et minute granulosum primo visu 

 < Lecirtellam sabuletorum Kœrb. » simulât, sed hypothecium et 

 apothecia tenuia differunt et planta juxta Lecideam pyenocar parti 

 Kœrb. Par. p. 2131ocanda est. — Ad saxamicacea prope Montevideo. 



41. Patellaria (s. Bacidia) rosellina Miill. Arg. ; thallus virens, 



3-4 



tenuissimus, laevis v. subrugulosus; apothecia -^ mm. lata, sessilir, 



albescenti-carnea v. demum carnea, plana v. leviter convexa, mar- 

 gine tenuissimo demum evanescente cincta, novella crassius margi- 

 nata, attamen non distincte gyaleetiformia ; lamina tota cura epitbe- 

 cio et hypothecio hyalina; sporae digitiformi-subaciculares, 27-33 p 



longae, 2 — -3 p latae, utrinque obtusae, 1-7-septatae. — Prope 



P. medialem (Tuck.) Miill. Arg. L. B. n° 799 et P. glabella m 

 (Krplh. Lich. Neu-Seeland p. 11, sub Lecidea) locanda est. Prima 

 fronte bene Patellariam rosellam, S. Lecideam rosellam Ach. 

 microcarpam refert (praeter thallum), sed apothecia tenuiora, pri- 

 mum non gyaleetiformia et sporae parvae. — Ramulicola prope 

 Montevideo. 



42. Patellaria (s. Bacidia) fusco-nigrescens Miill. Arg. L. B. 

 n° 204 ; cortieola. 



43. Buellia exilis Mûll. Arg. L. B. n° 1083; saxicola. 



44. Phœographina (s. Eleutherolomaj Arechavaletae Miill. 

 Arg. ; thallus vix distinctus, olivaceo-cinereus; apothecia erum- 



