| Common Name | Scientific Name | Code |
| n/a | Umbilicaria americana Poelt & T. Nash | UMAM |
| arctic navel lichen | Umbilicaria arctica (Ach.) Nyl. | UMAR60 |
| blistered naval lichen | Lasallia papulosa (Ach.) Llano | LAPA13 |
| blistered navel lichen | Lasallia Merat | LASAL2 |
| blistered navel lichen | Lasallia pustulata (L.) Merat | LAPU9 |
| Carolina navel lichen | Umbilicaria caroliniana Tuck. | UMCA60 |
| crusty navel lichen | Umbilicaria crustulosa (Ach.) Frey | UMCR |
| cylindric navel lichen | Umbilicaria cylindrica (L.) Delise ex Duby | UMCY60 |
| hairy navel lichen | Umbilicaria hirsuta (Sw. ex Westr.) Hoffm. | UMHI60 |
| Havaas's navel lichen | Umbilicaria havaasii Llano | UMHA |
| Krascheninnikov's navel lichen | Umbilicaria krascheninnikovii (Savicz) Zahlbr. | UMKR60 |
| Lamb's navel lichen | Umbilicaria lambii Imshaug | UMLA |
| Lasallia papulosa | Lasallia pustulata (L.) Merat ssp. papulosa (Ach.) W. A. Weber | LAPUP2 |
| Lasallia papulosa | Umbilicaria papulosa (Ach.) Nyl. | UMPA |
| Lasallia papulosa | Umbilicaria pustulata (L.) Hoffm. var. papulosa (Ach.) Tuck. | UMPUP |
| Lasallia pensylvanica | Umbilicaria pensylvanica Hoffm. | UMPE |
| Lasallia pustulata | Umbilicaria pustulata (L.) Hoffm. | UMPU |
| Lynge's navel lichen | Umbilicaria lyngei Schol. | UMLY60 |
| manyleaf navel lichen | Umbilicaria polyphylla (L.) Baumg. | UMPO60 |
| manyroot navel lichen | Umbilicaria polyrrhiza (L.) Fr. | UMPO2 |
| Muehlenberg's navel lichen | Umbilicaria muehlenbergii (Ach.) Tuck. | UMMU60 |
| navel lichen | Umbilicaria angulata Tuck. | UMAN60 |
| navel lichen | Umbilicaria aprina Nyl. | UMAP |
| navel lichen | Umbilicaria cinereorufescens (Schaerer) Frey | UMCI60 |
| navel lichen | Umbilicaria decussata (Vill.) Zahlbr. | UMDE60 |
| navel lichen | Umbilicaria deusta (L.) Baumg. | UMDE61 |
| navel lichen | Umbilicaria Hoffm. | UMBIL2 |
| navel lichen | Umbilicaria hyperborea (Ach.) Hoffm. | UMHY2 |
| navel lichen | Umbilicaria hyperborea (Ach.) Hoffm. var. hyperborea | UMHYH |
| navel lichen | Umbilicaria hyperborea (Ach.) Hoffm. var. radicicula (J. E. Zetterst.) Hasselrot | UMHYR |
| navel lichen | Umbilicaria leiocarpa DC. | UMLE |
| navel lichen | Umbilicaria mammulata (Ach.) Tuck. | UMMA60 |
| navel lichen | Umbilicaria phaea Tuck. | UMPH |
| navel lichen | Umbilicaria proboscidea (L.) Schrader | UMPR60 |
| navel lichen | Umbilicaria torrefacta (Lightf.) Schrader | UMTO60 |
| navel lichen | Umbilicaria vellea (L.) Ach. | UMVE60 |
| navel lichen | Umbilicaria virginis Schaerer | UMVI60 |
| Nylander's navel lichen | Umbilicaria nylanderiana (Zahlbr.) H. Magn. | UMNY |
| Pensylvania blistered naval lichen | Lasallia pensylvanica (Hoffm.) Llano | LAPE60 |
| rigid navel lichen | Umbilicaria rigida (Du Rietz) Frey | UMRI |
| Scholander's navel lichen | Umbilicaria scholanderi (Llano) Krog | UMSC |
| Umbilicaria angulata | Gyrophora angulata (Tuck.) Herre | GYAN3 |
| Umbilicaria arctica | Gyrophora arctica Ach. | GYAR |
| Umbilicaria crustulosa | Omphalodiscus crustulosus (Ach.) Schol. | OMCR |
| Umbilicaria cylindrica | Gyrophora cylindrica (L.) Ach. | GYCY |
| Umbilicaria decussata | Gyrophora decussata (Vill.) Zahlbr. | GYDE |
| Umbilicaria decussata | Omphalodiscus decussatus (Vill.) Schol. | OMDE |
| Umbilicaria deusta | Gyrophora deusta (L.) Ach. | GYDE2 |
| Umbilicaria hyperborea var. hyperborea | Gyrophora hyperborea Ach. | GYHY2 |
| Umbilicaria krascheninnikovii | Omphalodiscus krascheninnikovii (Savicz) Schol. | OMKR |
| Umbilicaria leiocarpa | Agyrophora leiocarpa (DC.) Gyelnik | AGLE4 |
| Umbilicaria lyngei | Agyrophora lyngei (Schol.) Llano | AGLY |
| Umbilicaria mammulata | Gyrophora dillenii (Tuck.) Mull. Arg. | GYDI3 |
| Umbilicaria muehlenbergii | Actinogyra muehlenbergii (Ach.) Schol. | ACMU4 |
| Umbilicaria muehlenbergii | Gyrophora muehlenbergii Ach. | GYMU2 |
| Umbilicaria phaea | Gyrophora phaea (Tuck.) Nyl. | GYPH |
| Umbilicaria polyphylla | Gyrophora polyphylla (L.) Fink | GYPO2 |
| Umbilicaria polyrrhiza | Actinogyra polyrrhiza (L.) Schol. | ACPO8 |
| Umbilicaria polyrrhiza | Gyrophora polyrrhiza (L.) Korber | GYPO3 |
| Umbilicaria rigida | Agyrophora rigida (Du Rietz) Llano | AGRI4 |
| Umbilicaria rigida | Gyrophora anthracina (Wulfen) Korber | GYAN4 |
| Umbilicaria rigida | Umbilicaria coriacea Imshaug | UMCO |
| Umbilicaria scholanderi | Agyrophora scholanderi Llano | AGSC8 |
| Umbilicaria torrefacta | Gyrophora erosa (G. Weber) Ach. | GYER2 |
| Umbilicaria vellea | Gyrophora vellea (L.) Ach. | GYVE |
| Umbilicaria virginis | Omphalodiscus virginis (Schaerer) Schol. | OMVI |