207 



partium internarum. — Corticola prope Lydenburg in Trans- 

 waalia: Dr. "Wilms n. 24 (comm. Dr. Lahm). 



_ p 



1374. Pertusaria (Pastulatae) xanthomelaena Mull. Arg., 

 thallus flavus v. flavd-albidus, tenuissimus, laevis, demum ri- 



/ * 



mosus, linea nigra cinctus; verrucae cim 4 /s mm - latae, hemi- 

 sphaericae, cum thallo concolores et laeves, vertice demum 

 paiillo depressae et in depressione latiuscule nigro-ostiolatae; 

 asci 6 — S-spori v. sporae abortu etiam simul pauciores, 60—70 /* 

 longae, circ. 33 // latae, laeves. — A satis simili P. acrome- 

 laena Mull. Arg., quacum bine inde commixtim crescit, differt 

 thallo distincte flavulo, verrucis vertice demum distincte de- 

 pressulis et angustius ostiolatis, et dein a P. pustulata Duby 

 differt sporis lmnoribos in ascis hand geminatis nee intus 

 transversim costulatis. — Corticola in monte Tafelberg Capitis 

 Bonae Spei; Dr. Wilms n. 104. 



1375. Buellia parasema Korb. v. sanguinea Mull. Arg.; 

 thallus intense sanguineo-ruber, tenuissimus, laevigatus; apo- 

 thecia Vs — Vi mm - l a * a j plana, nigra et margine tenui prominente 

 cincta; sporae 10—15 p. longae, 2— 3-plo longiores quam latae. 

 — Juxta B. paras, v. epimartam, m. Lecideam diseiformem 

 v. epimartam Nyl. Expos. Lick. Novae (Med. p. 48, et B. paras. 

 v. rosello-tinctam, s. Lecideam discif. v. rosello-tinctam Nyl. 

 Syn. Lich. Nov. Caled, p. 52 loeanda est, — Corticola prope 

 Lydenburg in Transwaalia: Dr. Wilms n. 41 (comm. Dr. Lahm). 



1376. Opegrapha capensis MiilL Arg.; thallus albus, te- 

 nuissimus, laevis, margine effusus; lirellae eopiosae, lineares, 

 simplices et 2 — 3-furcatae, ad extremitates acuminatae, ex 

 emergente subemersae, evolutae medio ~~ mm. latae; labia 

 conniventia, demum levins eule patentia, extus thallino-vestita, 

 laevia; perithecium completum, basi crassius; asci cylindrico- 

 obovoideae apice haud pachydermei, S-spori; sporae 13—14 p 

 longae, 3 — 3 l / a ^ latae, cylindrico-obovoideae, 4-loculares. — 

 Planta extus cum O. atra Pers. s. O. stenocarpa Ach. primo 

 intuitu optime convenit, sed lirellae leviter graciliores, sporae 

 graciliores et paullo breviores et dein asci ambitu alii, et apice 

 et superne lateraliter nullo modo incrassato-pachydermei. — 

 Ad cortices laeves in monte Tafelberg Capitis Bonae Spei: 

 Dr. Wilms n. 107. 



1377. Arthothelium consanguineum MiilL Arg.; thallus 

 lacteus, tenuissimus, continuus, effusus ; apothecia nigra, deformi- 

 oblonga v. anguloso-orbicularia, ambitu obesa, convexo-plana, 

 margine subeffusa, demum nuda, haud marginata; epitheeium 



