1^ 



284 



vidi 5-septatas), sed margo crassior et hypothecium intense ni* 

 grescenti-fuscum et crassum, et dein a P. glaucomoide Nyl. 

 liich. Kurz. Calcutt. n. 28 jam thalto virescenti-albo et apotheciis 

 majoribus differt. — Habitat corticolaprope Caracas: Br. Ernst 

 (sine no.)* 



214. Opegrapha (s. Lecanadis) Ulecebrosula Mall. Arg., thallus 

 tenuis, aequalis, albus, continuus v. demum obiter rimulosus, 

 superficie subpulverulentus, linea fusca cinctus; apothecia nu- 

 merosissima, pro parte coiitigua, parva, */?■ — Vc ^^"" ^^^ innato- 

 sessilia v. arete adpresso-sessilia, orblcularia v. orbiculari-ellip- 

 tica, atro-marginata, caeterum cinereo-pruinosa v. demum. 

 dnereo-nigricantia, margo vix prominens, demum obsolete un- 

 dulatus, perithecium lateraliter et subtus completum, epithecium 

 et hypothecium fusca, lamina hyalina, asci obovoideo-cylindrici, 

 apice haud pachydermei, 8-spori; sporae hyalinae, 17 jt longae, 

 tantum V/^ — 2(jLlatae, fusiformi-bacillares, 3-septatae. — Species 

 pro sectione Lecanactide exiraie microcarpa at specimina visa 

 summopere feracia^ caeterumque tenuitate sporarum insignis, 

 nuUi cognitarum ar^te accedens. Extus quasi forma valde di- 

 minuta Opegraphae (s. Lecanaetidis) illecebrosae Duf. — Crescit 

 ad cortices prope Caracas; Dr. Ernst n. 5. 



215. Opegrapha (s. Lecanadis) lynceoides Miill. Arg., thallus 

 einereo-albus, tenuis, superficie subgranuloso-rugulosus, rimulosus, 

 late effusus, margine zona fumoso-nigricante cinctus; apothecia 

 oblongo-elliptica et late linearia, '/j' — 2 mm. longa, 7i — 'A mm. 

 lata, utrinque obtusa, flexuosa, innata, margo proprius ater, 

 tenuis, . leviter tremulanti-undulatus^ tballum leviter tantum v. 

 vix superans, supra dlscum haud prominens, discus planus, e 

 fumoso cinereo-pruinosus ; epithecium fuscum, hypothecium pal- 

 lide fusco-nigricans, lamina subhyahna, asci 8-spori; sporae 

 hyalinae, 4— 6-loculares, fusiform i-dactyloideae, 12—18 ^ longae 

 et ^-r47a latae. ~ Prima fronte proxime accedit ad Opegrapham 

 MarUi Nyl. Lich. Kurz. Calcutt. n. 23, sed thallus non laevis, 

 apothecia magis immersa (ut in 0. lyncea)^ margo haud pro- 

 minens, hypothecium non eleclrino-fuscescens et sporae duplo 

 minores. A simili 0. ?j/ncea dein differt thallo, apotheciis longio- 

 ribus, sporis latioribus et minus divisis, — Habitat ad truncos 

 Ajionae prope Caracas : Dr. Ernst (sine no.). 



216. Opegrapha (s. Lecanadis) pyrenocarpoides Mtill. Arg., 

 thallus albus v. cinereo-albus, tenuis, superficie farinulentus, 

 laeviSj demum rimulosus, margine linea fusca cinctus ; apothecia 



