42 
ribus levioribus minusque einereis et sporis brevioribus. 
— Corticola in depressitate secus flum. Quillu: Pechuel- 
Loesche. 
48. P. argillaeea Müll. Arg., thallus tenuis, levis v. 
plicatulo -substriatus, argillaceus, opacus, margine zona 
fusea einetus; apothecia dense sparsa, '/, mm lata, depresso- 
mastoidea, thallo concolloria, regularia, vertice latiuseula 
et subirregulariter fusco — v. nigricanti — ostiolata, osti- 
olum leviter mamillare; perithecium in verruca mastoides 
pallidum, globosum, apice paullo angustatum; paraphyses 
capillares, ereberrimz, parce ramosıe; asei augusti, 8-spori; 
sporz hyalins, 7-septatze, subtenniter daetyloidee, 19—23 a 
long, 3 a late, sepe leviter incurvie, utrinque obtus®. 
— Juxta proximam P. praestantem (Verrucariam prastan- 
tem Nyl. Lieb. Angol. p. 15) inseranda est, a» qua thallo, 
ostiolis et sporis minoribus differt (P. praestans cweterum 
est foliicola). — Ad cortices seens flumen Quilln: Pechuel- 
Loesche. 
4. Süyelia albo-afra; Verrucaria allo-atra Nyl, 
Krpih. Lich. Glaz. p. 80 (peritbeeium est dimidiatum, 
etiam in Glaz. n. 5050); ad corticem emortuum et semi- 
putridum Palmarum seeus fum. Quillu: Pechuel-Loesche. 
50. S. obtect« Müll. Arg., tballus per epidermidem 
olivaceo — v. subargillaceo-pallidus, late effusus; apothecia 
2—4 aggregata v. etiam solitaria, aggregata partim con- 
nata sed won hasi eommuni juneta, fere omnino obtecta, 
nonnisi vertice nigro minute macnliformi nec prominentia 
mastoislen ulla cortieis indicata, undique nigra, basi tamen 
alplanata valde tenuia, ceterum pyramidali-depressa, 
ie 
—n 
