A HISTORY OF ESSEX Lecidea coarctata, f. ornata, Smrf. fuscoatra, Ach. f. fumosa, Ach. f. meiosporiza, Nyl. sub-Kochiana, Nyl. Taylori, Salw. contigua, Fr. confluens, Leight. canescens, Dicks. disciformis, Fr. myriocarpa, DC. f. chloropolia, DC. f. pinicola, Ach. f. leprosa, DC. f. quercicola, Rabh. f. saprophila, Ach. nigritula, Nyl. chalybeia, Borr. grossa, Pers. Lightfootii, Sm. anomala, Fr. tricolor, With. Ehrhartiana, Ach. Caradocensis, Leight. incompta, Borr. alboatra, Hoffm. f. populorum, Mass. f. epipolia, Ach. Dilleniana, Ach. aromatica, Sm. umbrina, Ach. milliaria, Fr. ; f. terrestris, Fr. endoleuca, Nyl. premnea, Ach. phacodes, Kcerb. sabuletorum, Floerke rubella, Ehr. effiisa, Sm. contigua, Ach. petraea, Wulf. f. fuscescens, Leight. tantilla, Nyl. parmeliarum, Smrft. parasitica, Flcerke Opegrapha herpetica, Ach. f. vera, Leight. f. rubella, Pers. f. rufescens, Pers. atra, Pers. f. denigrata, Ach. f. nigrita, Leight. f. parallela, Leight. f. hapalea, Ach. f. arthonoidea, Leight. Turneri, Leight. saxicola, Ach. var. Chevallieri, Leight. varia, Pers. f. pulicaris, Leight. f. notha, Ach. Opegrapha varia, f. diaphora, Ach. f. tigrina, Ach. f. tridens, Ach. vulgata, Ach. f. vulgata, Ach. f. stenocarpa, Ach. f. subsiderella, Nyl. lyncea, Sm. Stigmatidium crassum, Dub. Arthonia lurida, Ach. vinosa, Leight. punctiformis, Ach. astroidea, Ach. epipasta, Ach. Swartziana, Ach. cinnabarina, Wallr. var. kermesina, Nyl. f. rosacea, Turn. & Borr. f. marginata, Turn. & Borr. var. pruinata, Del. f. dubia, Turn. & Borr. var. anerythraea, Nyl. f. detrita, Turn. & Borr. pruinosa, Ach. anastomosans, Ach. Graphis elegans, Sm. scripta, Ach. f. minuta, Leight. f. varia, Leight. f. horizontalis, Leight. var. pulverulenta, Ach. f. betuligna, Ach. var. serpentina, Ach. dendritica, Ach. f. Smithii, Leight. f. obtusa, Leight. inusta, Ach. f. vera, Leight. f. simpliuscula, Leight. f. macularis, Leight. sophistica, Nyl. f. flexuosa, Leight. f. radiata, Leight. f. divaricata, Leight. var. pulverulenta, Sm. dendriticoides, Leight. Endocarpum hepaticum, Ach. f. trapeziformis, Zoega. Mycoporum miserrimum, Nyl. Verrucaria papillosa, Ach. mutabilis, Borr. mauroides, Schaer. nigrescens, Pers. plumbea, Ach. fucella, Turn. glaucina, Ach. macrostoma, Duf. viridula, Schrad. rupestris, Schrad. var. muralis, Ach.