Umbellularia californica - Verrucaria
- Umbellularia californica
- Umbellularia californica var. californica
- Umbellularia californica var. fresnensis
- Umbilicaria
- Umbilicaria americana
- Umbilicaria angulata
- Umbilicaria aprina
- Umbilicaria arctica
- Umbilicaria caroliniana
- Umbilicaria cinereorufescens
- Umbilicaria crustulosa
- Umbilicaria cylindrica
- Umbilicaria decussata
- Umbilicaria deusta
- Umbilicaria havaasii
- Umbilicaria hirsuta
- Umbilicaria hyperborea
- Umbilicaria hyperborea var. hyperborea
- Umbilicaria hyperborea var. radicicula
- Umbilicaria krascheninnikovii
- Umbilicaria lambii
- Umbilicaria leiocarpa
- Umbilicaria lyngei
- Umbilicaria mammulata
- Umbilicaria muehlenbergii
- Umbilicaria nylanderiana
- Umbilicaria phaea
- Umbilicaria polyphylla
- Umbilicaria polyrrhiza
- Umbilicaria proboscidea
- Umbilicaria rigida
- Umbilicaria scholanderi
- Umbilicaria torrefacta
- Umbilicaria vellea
- Umbilicaria virginis
- Uncaria
- Uncaria gambir
- Uncinia
- Uncinia brevicaulis
- Uncinia hamata
