| Common Name | Scientific Name | Code |
| n/a | Arthopyrenia analepta (Ach.) A. Massal. | ARAN14 |
| n/a | Arthopyrenia confluens R. C. Harris | ARCO35 |
| n/a | Arthopyrenia degelii R. C. Harris | ARDE10 |
| n/a | Arthopyrenia esenbeckiana (Fee) R. C. Harris | ARES6 |
| n/a | Arthopyrenia exasperata R. C. Harris | AREX5 |
| n/a | Arthopyrenia oblongens R. C. Harris | AROB7 |
| n/a | Arthopyrenia taxodii R. C. Harris | ARTA5 |
| n/a | Jarixa ilicicola R. C. Harris | JAIL |
| n/a | Jarixa R. C. Harris | JARIX |
| n/a | Jarixa thelenula R. C. Harris | JATH |
| n/a | Leptorhaphis lucida Korber | LELU8 |
| n/a | Mycomicrothelia hemisphaerica (Mull. Arg.) D. Hawksw. | MYHE4 |
| n/a | Tomasellia macularis (Minks ex Willey) R. C. Harris | TOMA3 |
| American tomasellia lichen | Tomasellia americana (Minks ex Willey) R. C. Harris | TOAM2 |
| Arthopyrenia analepta | Arthopyrenia fallax (Nyl.) Arnold | ARFA6 |
| Arthopyrenia analepta | Arthopyrenia lapponica Anzi | ARLA26 |
| Arthopyrenia analepta | Polyblastiopsis fallax (Nyl.) Fink | POFA6 |
| Arthopyrenia cinereopruinosa | Arthopyrenia pinicola (Hepp) A. Massal. | ARPI5 |
| Arthopyrenia malaccitula | Arthopyrenia bifera Zahlbr. | ARBI10 |
| Arthopyrenia plumbaria | Porina plumbaria (Stizenb.) Hasse | POPL8 |
| Arthopyrenia plumbaria | Pyrenula herrei Fink | PYHE |
| birchbark dot lichen | Leptorhaphis atomaria (Ach.) Szat. | LEAT6 |
| birchbark dot lichen | Leptorhaphis epidermidis (Ach.) Th. Fr. | LEEP4 |
| birchbark dot lichen | Leptorhaphis Korber | LEPTO15 |
| birchbark dot lichen | Leptorhaphis parmeca (A. Massal.) Korber | LEPA25 |
| cinchona shell lichen | Arthopyrenia cinchonae (Ach.) Mull. Arg. | ARCI5 |
| contorted birchbark dot lichen | Leptorhaphis contorta Degel. | LECO25 |
| lyre shell lichen | Arthopyrenia lyrata R. C. Harris | ARLY4 |
| mycomicrothelia lichen | Mycomicrothelia capitosa (Krempelh.) D. Hawksw. | MYCA7 |
| mycomicrothelia lichen | Mycomicrothelia dothideaspora (Cook & Harkn.) D. Hawksw. | MYDO |
| mycomicrothelia lichen | Mycomicrothelia inaequalis (Fabre) D. Hawksw. | MYIN2 |
| mycomicrothelia lichen | Mycomicrothelia Keissler | MYCOM |
| mycomicrothelia lichen | Mycomicrothelia subfallens (Mull. Arg.) D. Hawksw. | MYSU2 |
| Mycomicrothelia wallrothii | Microthelia oblongula Mull. Arg. | MIOB3 |
| Mycomicrothelia wallrothii | Microthelia wallrothii (Hepp) Rehm | MIWA4 |
| Mycomicrothelia willeyana | Microthelia willeyana Mull. Arg. | MIWI |
| Rapp's shell lichen | Arthopyrenia rappii Zahlbr. | ARRA6 |
| shell lichen | Arthopyrenia A. Massal. | ARTHO2 |
| shell lichen | Arthopyrenia cerasi (Schrader) A. Massal. | ARCE2 |
| shell lichen | Arthopyrenia cinereopruinosa (Schaerer) A. Massal. | ARCI6 |
| shell lichen | Arthopyrenia majuscula (Nyl.) Zahlbr. | ARMA22 |
| shell lichen | Arthopyrenia malaccitula (Nyl.) Zahlbr. | ARMA23 |
| shell lichen | Arthopyrenia minor R. C. Harris | ARMI11 |
| shell lichen | Arthopyrenia planorbis (Ach.) Mull. Arg. | ARPL9 |
| shell lichen | Arthopyrenia plumbaria (Stizenb.) R. C. Harris | ARPL10 |
| Texas shell lichen | Arthopyrenia texensis (Cooke) D. Hawksw. | ARTE12 |
| tomasellia lichen | Tomasellia A. Massal. | TOMAS |
| tomasellia lichen | Tomasellia difforme (Minks) | TODI3 |
| Wallroth's mycomicrothelia lichen | Mycomicrothelia wallrothii (Hepp) D. Hawksw. | MYWA2 |
| Willey's mycomicrothelia lichen | Mycomicrothelia willeyana (Mull. Arg.) D. Hawksw. | MYWI |