158 ( 17 ) 



88. Pertnsaria melaleuca Duby Bot. Gall., p. 675. 



— Corticole : foret du Rio Naranjo, mele a 

 Coenogonium (Pill, n" 6020). 



89. — (§ I.eioplarae) apicnlnta Miill. Arg. (sp. nov.). — Thallus 



albus, lenuissimus, continuiis, demum rimulosus, laevis ; 

 verrucac */5-l mm. lalae, conico-hemisphaericae, basi neccons- 

 trictae ncc in ihallum dilatatae, regulares et laeveS, demum hinc 

 indc cancellato-timulosac, apicc ostiolis 1-5 elato-hemisphac- 

 I'icis 15/100-20/100 mm. latis (pro genere maximis) fulvescenti- 

 pallidis quasi l-5-apicuIatac;spoi"8e(3-)4-nae,circ. 100 /jtlongae, 

 intus laeves. — Species opiime distineta, ob ostiola mamilluria 

 magna valde prominula ad zambesicam P. mamillanam Miill. 

 Arg. accedit, sed verrucae ipsae non verrucosae sunt. Juxta 

 neilgherensera P. acutam Rliill. Arg. inserenda est. — Corticole : 

 San Marcos (Pitt. n. 6022.). 



90. Phlyctella niidcnsis Nyl. Lich. Nov. Zel., p. 75; 



Phlyctis andensis Nyl. Licli. Welw., p. 9; Pta- 

 tygrapha phlyctella Nyl. Prodr. Nov. Gran., 

 p. 94. A proxima Phi. Brasiliensi Nyl. distal 

 thallo lenuiore, apotheciis minoribus et lenuius 

 marginatis. Sporae non differunl. — Corlicole : 

 Foret du Rio Naranjo (Pilt. n° 6015). 



91. PhlyctU subregularis Miill. Arg. (sp. nov.). — Thallus albidus, 



tenuissiraus, pulverulenlus; apolhecia 1/2 mm. lata, erum- 

 penti-sessilia, subrpgulariter orbicniata, margine crassiusculo 

 a thallo prominente formato, priraum radiatim lobulalo 

 deinque subobliterato cincta ; discus caesio-pulveiulentus et 

 demum nigricans; sporae supperposito-geminalae, circ. 40-50 //. 

 longae et 15-18 [x latae, ulrinque rotundalo-oblusac v. hinc inde 

 in apicc obtuso acute apiculatae, mox olivaceo-fuscidulae 

 parenchymatosac ; locellorum series transversales 13-16; locelli 

 in quaque seiie circ. 4-5. — Ob apolhecia fere regularia potius 

 Phlyctellam simulat, sed sporae sunt Phlyctidis. — A simili et 

 proxima Phi off'ula Krplh. Lich. Warm. p. 384 distal apolheciis 

 validius marginatis et sporis geminalis. — Corlicole : Buenos 

 Aires (Pitt. n. 6231). 



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