trees. Lendemer & Knapp (2007) - (4. Sharptown), (5. Hickory Pt.), (6. Pocomoke) Parmotrema subtinctorium (Zahlbr.) Hale [Parmeliaceae] Syn.: Parmelia subcrinita Nyl. Skorepa et al. (1977) – Somerset Co., on deciduous trees. Skorepa et al. (1979) – on bark. Parmotrema xanthinum (Müll. Arg.) Hale [Parmeliaceae] Syn.: Parmelia xanthina (Müll. Arg.) Vainio Skorepa et al. (1979) – on bark. Biechele (2002) – lower eastern shore of Maryland. Lendemer & Knapp (2007) - (6. Pocomoke) Peltigera aphthosa (L.) Willd. [Peltigeraceae] Skorepa et al. (1977) – No County, (Thomson, 1940). Peltigera canina (L.) Willd. [Peltigeraceae] Skorepa et al. (1977) – Garrett Co., with moss on sandstone. E.G. Worthley Herbarium - Garrett Co., Casselman Bridge State Park, on sandstone rocks; Wicomico Co., on sandy soil. Peltigera didactyla (With.) J. R. Laundon [Peltigeraceae] Syn.: Peltigera spuria (Ach.) DC. Skorepa et al. (1977) – Washington Co., on rock in seepage area. Peltigera elisabethae Gyelnik [Peltigeraceae] Skorepa et al. (1977) – Baltimore Co., with moss on wet rocks. Peltigera evansiana Gyelnik [Peltigeraceae] Skorepa et al. (1977) – Baltimore Co., (collected by Plitt). Peltigera horizontalis (Hudson) Baumg. [Peltigeraceae] Skorepa et al. (1977) – Baltimore Co., (collected by Merrill 1906). Peltigera neckeri Müll. Arg. [Peltigeraceae] Biechele (2002) – lower eastern shore of Maryland. Peltigera polydactylon (Necker) Hoffm. [Peltigeraceae] Skorepa et al. (1977) – Garrett Co., on moss covered rocks. Peltigera praetextata (Flörke ex Sommerf.) Zopf [Peltigeraceae] Skorepa et al. (1977) – Dorchester Co., at base of tree. Biechele (2002) – lower eastern shore of Maryland. Lendemer & Knapp (2007) - (3. Chesapeake) Peltigera rufescens (Weiss) Humb. [Peltigeraceae] Biechele (2002) – lower eastern shore of Maryland. Peltula euploca (Ach.) Poelt [Peltulaceae] Skorepa et al. (1979) – on soil. Pertusaria amara (Ach.) Nyl. [Pertusariaceae] Skorepa et al. (1979) – on bark. Pertusaria epixantha R.C. Harris [Pertusariaceae] Lendemer & Knapp (2007) - (5. Hickory Pt.) Pertusaria globularis (Ach.) Tuck. [Pertusariaceae] Skorepa et al. (1979) – on other. Pertusaria hypothamnolica Dibben [Pertusariaceae] Skorepa et al. (1979) – on bark. Pertusaria macounii (Lamb) Dibben [Pertusariaceae] Skorepa et al. (1979) – on bark. Pertusaria multipunctoides Dibben [Pertusariaceae] Skorepa et al. (1979) – on bark. Biechele (2002) – lower eastern shore of Maryland. E.C. Uebel Herbarium – Baltimore Co., Liberty Reservoir, on trunk of Carya. Lendemer & Knapp (2007) - (5. Hickory Pt.) Pertusaria ophthalmiza (Nyl.) Nyl. [Pertusariaceae] Biechele (2002) – lower eastern shore of Maryland. Lendemer & Knapp (2007) - (5. Hickory Pt.) Pertusaria paratuberculifera