456 DR. J. MUELLER ON NEW LICHENS. 
6-7} » late, anguste fusiformes, 16-20-loculares.—Perithecio 
interiore lateraliter et subtus deficiente cum dissimili et ceterum 
diversa Pl. flecuosa convenit et dein sporis pro hoe genere 
insigniter multilocularibus distincta est.—Corticola, in insula 
Barbados: Anderson. 
14. Opearapya (§ EvoPEGRAPHA) FERTILIS, Mvell. Arg.; thallus 
albus, haloniformi-tenuis, evanescens; lirelle admodum copiose et 
subequaliter dense disperse, }-1 mm. longx, sepius 5-3 mm. 
equantes, 715,20. mm. late, lineares et simplices, opaco-niger- 
rime, obsolete rudiuscule, siccew apice obtuse modice sulcate, 
madefactzx ibique planiuscule ; labia subacuta et leviter distantia ; 
perithecium nigrum, basi attenuatum ; asci elongato-obovoidei, 
membrana apice distincte incrassata ; spore Sn, 18-20 » longe, 
314 p late, tenuiter digitiformes, 4-loculares.—Admodum affinis 
O. atratula, Muell. Arg., sed thallus albior, lirelle nigerrime et 
rudiuscule, labia acutiora, magis distantia et perithecium basi 
attenuatum.—Ad ligna vetusta, in insula Barbados: Anderson. 
15. OprerapHa (§ EvorpEGRaPHA) PaLMIcoLA, Muell. Arg.; 
thallus albus, tenuissimus, orbillas subregulares 21-3 cm. latas 
maculiformes efficiens; lirelle immerse, demum leviter emer- 
gentes 1-3 mm. longe, 7j'5—7% mm. late, lineares, simplices et 
bifurcate, sepius varie curvate et subflexuose, sepius utrinque 
longius acuminate, parte emersa thallino-marginate, demum 
apice plane et nude; perithecium nigrum, sub lamind incras- 
satum ; asci cylindrico-ovoidei, 8-spori; spore 20-23 p longe, 
cum halone 5 p late, anguste fusiformes, 8-loculares.—Species 
valde distincta, habitu Graphidem scriptam, Ach., satis simulans, 
sed e paraphysibus connexo-ramosis et e divisione characteristica 
sporarum ad Opegrapham pertinet et in hoe genere prope O. me- 
lanogramma, Krempelh., locanda est.—Ad lignum Palmarum, in 
insula Barbados: Anderson. 
16. Oprcrapna (§ Lecanacris) utcERrata, Muell. Arg.; thallus 
cinereus, tenuis, subplicatulus et demum rimulosus (lenticellis 
subjacentibus spurie gibbosus) ; apothecia evoluta sessilia, orbi- 
cularia v. subangulosa, 3-3 mm. lata, plana v. subplana, tenuiter 
nigro-marginata, nigra et nuda, thallo cireumcirca ulceroso quasi 
annulo latiusculo albo cincta, novella exi gua distincte lirelliformia, 
2-3plo longiora quam lata y. etiam suborbicularia ; perithecium 
nigrum, basi contractum ibique tamen in centro late deficiens ; 
Oe 
