The following list of Lichens of Maryland is derived from the following sources: (1) lichens listed in the 1977 publication by Skorepa (Allen C. Skorepa), Norden , and Windler. (2) lichens listed in the 1979 publication by Skorepa, Norden, and Windler. (3) lichens listed in the 2002 publication by Biechele as occurring on Maryland's Delmarva Peninsula. (4) lichens in Elmer Worthley's personal herbarium. (5) lichens found in Maryland by Edward Uebel. (6) lichens reported on Maryland's Delmarva Peninsula by Lendemer and Knapp (2007) at six locations: 1. Millington State Wildlife Management Area (1. Millington); 2. Idylwild State Wildlife Management Area (2. Idylwild); 3. Chesapeake State Forest (3. Chesapeake); 4. Sharptown Dunes (4. Sharptown); 5. Hickory Point Cypress Swamp (5. Hickory Pt.); 6. Pocomoke State Forest (6. Pocomoke). Acarospora fuscata (Schrader) Arnold [Acarosporaceae] Skorepa et al. (1979) – on acidic rock. E.G. Worthley Herbarium - Carroll Co., on stone wall. E.C. Uebel Herbarium – Lichens of Soldiers Delight. Acarospora schleicheri (Ach.) A. Massal. [Acarosporaceae] Skorepa et al. (1977) – Lichens of Soldiers Delight. Skorepa et al. (1979) – on acidic rock. Ahtiana aurescens (Tuck.) Thell & Randlane [Parmeliaceae] Syn.: Cetraria aurescens Tuck. Skorepa et al. (1977) – Allegany Co., on branches of pines. Skorepa et al. (1979) – on bark. Allocetraria oakesiana (Tuck.) Randlane & Thell [Parmeliaceae] Syn.: Cetraria oakesiana Tuck. Skorepa et al. (1977) – Frederick Co., base of oak. Skorepa et al. (1979) – on bark, acidic rock. E.G. Worthley Herbarium - Garrett Co., along Big Run, on stumps. Amandinea milliaria (Tuck.) P. May & Sheard [Physciaceae] Syn.: Rinodina milliaria Tuck. Skorepa et al. (1977) – Calvert Co., on trunks of deciduous trees. Skorepa et al. (1979) – on bark. Biechele (2002) – lower eastern shore of Maryland. Amandinea polyspora (Willey) E. Lay & P. May [Physciaceae] Syn.: Buellia polyspora (Willey) Vainio Skorepa et al. (1977) – Carroll Co., bark of deciduous tree. Skorepa et al. (1979) – on bark. E.C. Uebel Herbarium – Baltimore Co., Ridge Rd., on bark of Norway Maple. Amandinea punctata (Hoffm.) Coppins & Scheid. [Physciaceae] Syn.: Buellia punctata (Hoffm.) Massal. Skorepa et al. (1977) – Worcester Co., on oak twigs. Skorepa et al. (1979) – on bark. Lendemer & Knapp (2007) - (2. Idylwild) Anaptychia palmulata (Michaux) Vainio [Physciaceae] Skorepa et al. (1977) – Calvert Co., trunks of deciduous trees. Skorepa et al. (1979) – on bark. Biechele (2002) – lower eastern shore of