207 
partium internarum. — Corticola prope Lydenburg in Trans- 
waalia: Dr. Wilms n. 24 (comm. Dr. Lahm). 
1374. Pertusaria (Pustulatae) xanthomelaena Müll. Arg., 
thallus flayus v. flavo-albidus, tenuissimus, laevis, demum ri- 
mosus, linea nigra cinctus; verrucae circ. 4 /s mm - latae, hemi- 
sphaericae, cum thallo concolores et laeves, vertice demum 
paullo ' depressae et in depressione latiuscule nigro-ostiolatae; 
asci 6—8-spori y. sporae abortu etiam simul pauciores, 60—70 p 
longae, circ. 33 u latae, laeves. — A satis simili P. acrome - 
laena Müll. Arg., quacum hinc inde commixtim crescit, differt 
thallo distincte flavulo, verrucis yertice demum distincte de- 
pres^ulis et angustius ostiolatis, et dein a P. pustulata Duby 
differt sporis minoribus in ascis haud geminatis nec intus 
transversim costulatis. — Corticola in monte Tafelberg Capitis 
Bonae Spei: Dr. Wilms n. 104. 
1375. Buellia parasema Körb. v. sanguinea Müll. Arg.; 
thallus intense sanguineo-ruber, tenuissimus, laevigatus; apo- 
thecia Vs—Va mm * lata, plana, nigra et margine tenui prominente 
cincta; sporae 10—15 p longae, 2— 3-plo longiores quam latae. 
— Juxta B. paras. v. epimartam, sc. Lecideam disciformem 
v. epimartam Nyl. Expos. Lieh. Novae Caled. p. 48, et B.paras. 
v. rosello-tinctam, s. Lecideam discif. v. rosello-tinctam Nyl. 
Syn. Lieh. Nov. Caled. p. 52 locanda est. — Corticola prope 
Lydenburg in Transwaalia: Dr. Wilms n. 41 (comm. Dr. Lahm). 
1376. Opegrapha capensis Müll. Arg.; thallus albus, te¬ 
nuissimus, laevis, margine effusus; lirellae copiosae, lineares, 
simplices et 2—3-furcatae, ad extremitates acuminatae, ex 
emergente subemersae, evolutae medio mm. latae; labia 
conniventia, demum leviuscule patentia, extus thallino-vestita, 
laevia; perithecium completum, basi crassius; asci cylindrico- 
obovoideae apice haud pachydermei, 8-spori; sporae 13—14 ^ 
longae, 3—37 2 latae, cylindrico-obovoideae, 4-loculares. — 
Planta extus cum 0. atra Pers. s. 0. 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 Müll. Arg.; thallus 
lacteus, tenuissimus, continuus, effusus; apothecia nigra, deformi- 
oblonga v. anguloso-orbicularia, ambitu obesa, convexo-plana, 
margine subeffusa, demum nuda, haud marginata; epithecium 
