452 DR. J. MUELLER ON NEW LICHENS. 
2. OcELLULARIA CRISPATA, Muell. Arg.; thallus albus, tenuis, 
rimulosus et obsolete granuloso-asperulus; apothecia 3-1 mm. 
lata, leviter emergentia, orbicularia, basi constricta, mox late 
aperta; margo recurvo-patens et lobatus, crispulus pulveru- 
Jentus; discus planus, depressus et strato niveo obtectus ; peri- 
thecium intus undique hyalinum et columella basilaris dein 
deficiens ; spore Snx, hyaline, oblongato-ellipsoidee, 15-17 p 
longs, 6 » late, 6-7-loculares.—Prope validiorem Ocellulariam 
efformatam, sc. Thelotrema efformatum, Krempelh. in Flora (1876), 
p. 221, et magis macrosporam australiensem O. pulchram, Muell. 
Arg. in Nuov. Giorn. Bot. Ital. xxiii. p. 8395, inserenda est.— 
Corticola, prope Rio de Janeiro: Portella. 
3. OcELLULARIA DinaTatTa, Muell. Arg.; thallus olivaceo- 
glaucus, tenuissimus, levis, rimulosus, subevanescens ; apotbecia 
innato-emergentia, ex orbiculari 2-4plo longiora quam lata, 
simplicia v. sepius bifurcata et astroideo-trilobata, circ. 1 mm. 
lata, plana; margo tenuis, undulatus et crispulus, erectus, cx#te- 
rum nec dentatus nec fissus, extus nigrescenti-glaucus; discus 
planus, strato niveo obtectus, levis integer; perithecium intus 
undique hyalinum, basi non columelligerum ; spore 2-seriatim 
Sne (hyaline), 23-27 » longe et 7-8 p late, 8-loculares.— 
Species hee apotheciis irregulariter dilatatis insignita et juxta 
O. schizostoma, Muell. Arg., inserenda est. Ab O. latilabra, se. 
Thelotremate latilabro, Tuck. Obs. 1864, p. 269, jam margine 
valde tenui differt.—Corticola, in prov. Rio de Janeiro: Glaziou, 
n. 5581 pr. p. 
4. OCELLULARIA ELABENS, Muell. Arg. ; thallus argillaceo- 
albus, tenuissimus, continuus et levis, farinulentus; apothecia 
circ. 3 mm. lata, paullo emergentia, orbicularia v. oblongo- v. 
astroideo-triloba, mox late aperta ; margo recurvus, fissus et cris- 
pulus, demum quoad lobos evanescens et apothecia tum habitum 
integro-lecanorinum ostendentia; discus livido-obscurus v. demum 
nigrescens, planus, nudus ; perithecium intus undique hyalinum ; 
columella centralis deficiens ; epithecium olivaceo-nigricans, 
lamina ceterum hyaline; paraphyses copiose hyphemoideo- 
vestitee ; spore hyaline, 2-4nx, circ. 40 » longe et 8p late, 
utrinque late obtuse, fere undique equilate, circ. 14-17- 
loculares.—Habitu ad O. crispatam, Muell. Arg., accedit, sed 
spore magis divise utin dissimili O. pulchra, Muell. Arg.—Cor- 
ticola, in Brasilia. 
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