8o 
LICHENES. 
2. PYRENULA MARGINATA. "J- 
P. crusta cartilagineo-membranacea, Levigata, e pallido fusco-cinerascente, late nigro- 
limitata j apotheciorum verrucis subdepressis , glabris , clausis , apice minutissime papillatis. 
Pyrenula marginata Synops. Viant. a J q. i. p. 20. 
Crescit ad corticem arborum in frigidis, prope Succhubambam, ait. i/\.o r ] hex. (Regno 
Penmano .) 
URCEOLARIA. Achar. 
Receptaculum universale crustaceum, plano-expansum, adnatum, 
uniforme; partiale scutelliforme. Lamina proligera concava, colorata, 
crustae immersa, intus striato-cellulifera, margine, a crusta formato 
et eidem concolori, sessili, elevato, cincta. Ach. 
1. URCEOLARIA CINEREO—CiESIA. 
U. crusta insequabili, granulata rimosaque, cinereo- albida; lamina proligera urceolata, 
atra caesiaque, margine thallodc granulato- subcrenulato discoideum integerrimum crustamque 
aequante. Ach. 
Urceolaria cinereo-caesia. Ach. Synops. Licii, p. 33 g.— Synops. Piant, ceq. 1. p. 20. 
Lichen cinereo- caesius Swartz. Flor. Ind. occ. p. 1889. Ejusd. Licii. Am. t. 5 . f. 2, 
Crescit in summo monte Silia de Carae as, ait. i 34 o hex. (Provincia Fenezuelcef) 
LECANORA. Ach. 
Receptaculum universale crustaceum, plano-expansum, adnatum, 
uniforme; partiale scutelliforme, crassum, adnato-sessile. Lamina 
proligera discum efformans, plano-convexa, colorata, apotKecium 
supra tegens, intus celluloso-striata, margine crassiusculo, a thallo 
formato et eidem concolori, sublibero, cincta. Ach. 
1. LECANORA subfusca. 
L. crusta cartilaginea, Levigata, demum granulata, insequabili, alba cinerascenteque; apo¬ 
theciorum disco plano-convexiusculo, sub fusco nigroque; margine thallode tumido, integro, 
tandem flexuoso crenatoque. Ach. 
Lecanora subfusca Ach. Synops. Lich. p. 157.— Synops. Piant, ceq. 1. p. 21. 
Parmelia subfusca Ach. Meth. Lich. p. 167. 
Yerrucaria subfusca Hojfm. Flor. Gerrn. p. 180. 
Lichen subfuscus Linn. Smith. Engl. bot. t. 2109. 
Crescit ad corticem arborum , in monte ignicomo Mexicano , prope Toluccam , ait. 
1800 hex.', item juxta Caripe, Cocollcir, et in declivitate montis Tumiriquiri. ( Proc . 
Cumanensi .) 
