522 
Ad cortices (Unicum!). 
104. Verrucaria (Porina) nucula (Ach.), Nyl. Exp, syn. pyre- 
nocarp. p. 4. 
Corticola (U! nieum D. 
105. Verrucaria (Pyrenula) basilica Kroh, sp. n. 
Thallus ochroleucus, granulato-colliculosus, contiguus, 
laevis, erustam crassiusculem, determinatem, rotundatam vel 
oblongam (diem. cire. 2 centim.), ambitu interdum linea atro- 
fusca ceinetam in cortice efformans; apotheeia verruces thallinas 
subhemisphaerico-prominulas et versum medium thalli confer- 
tas, spice umbilicatas, nigro-ostiolatas sistentia, perithecia atra, 
integra, vertice in collum breve, ostiolum verrucae obturans, 
protensa tircumceludentia, itaque ostiola ampliuscula verru- 
carım nigricantia; sporae 4—8, fusiformes nut oblongo-fusifor- 
mes, plerumque curvulae, magnae, long. 0,110—120, crass. 
0,013—017 mm., hyalinae, 18—20-loculosae, loculis (sporoblastis) 
uniseriatis, (maturae) angulosis et in sporis Ommino maturis 
trabeculis gracillimis inter se separatis, quod in sporis juniori- 
bus non visibile, . 
Ad ramos arborum prope urbem Concepion del Uru- 
guay. . 
Species ex insignibus generis Pyrenulae,‘ jam extus 
thallo suo sranulato-colliculoso, determinate dilatato, valde 
evidens, 
106. Verrucaria (Pyrenula) pyrenuloides (Mont.) Nyl. Exp. 
syn. Pyrenoe. p. 44; Pyremua pachycheila Tuckerm. Gen. lich. 
p. 274. 
Ad cortices. ‘ 
Sporae 1—Snae in asco, fusiformi-ellipsoideae, long. 
0,033-—055, cress. 0,017—022 mm,, primo hyalinae, 10 series 
transversas (in quavis serie 1—4 loculi) offerens, serius mura- 
üformes, pellido-olivacene, vetustee obscuro-olivaceae, defor- 
mes; paraphyses gracillimae, flexuosae, bene conspienae. 
. 107. Verrucaria (Pyrenula) maslophore Ny]. Syn. Lich. Nov. 
Caled. p. 88; Expos. Lich. Nov. Caled. p. 52; Lichenogr. Nov. 
Granai, 4. p. 75. 
Corticola, Rio seco prope Oran, Cienega. 
108. Verrucaria (Pyrenula) vernicosa Krph. sp. n. . 
Thallus pallide olivaceus, tenuissimus, opacus, inae- 
qualitetes substrati continue obducens, irregulariter dilatatus; 
perithecia atra, minute, erebra, in verrucis thalli convexis, 
