Ulota crispa var. intermedia
Ulota crispa var. norvegica
Ulota curvifolia
Ulota drummondii
Ulota hutchinsiae
Ulota japonica
Ulota megalospora
Ulota obtusiuscula
Ulota phyllantha
Ulota reptans
Ulua aurochs
Ulua mentalis
Ulva
Ulvaceae
Ulva lactuca
Ulvales
Ulva pertusa
Ulvaria subbifurcata
Ulvophyceae
Uma inornata
Uma notata
Uma scoparia
umbella composita
Umbellales
Umbelliferae
Umbellularia
Umbellularia californica
Umbilicaria
Umbilicaria albopruinosa v. microphylla
Umbilicaria angulata
Umbilicaria anthracina
Umbilicaria aprina
Umbilicaria arctica
Umbilicaria atropruinosa
Umbilicaria brigantium
Umbilicaria canescens
Umbilicaria caroliniana
Umbilicariaceae
Umbilicaria cinerascens
Umbilicaria cinereorufescens
Umbilicaria cirrhosa
Umbilicaria coriacea
Umbilicaria corrugata
Umbilicaria corsicae
Umbilicaria crinita
Umbilicaria crustulosa
Umbilicaria cylindrica
Umbilicaria cylindrica v. delisei
Umbilicaria cylindrica v. nudiuscula
Umbilicaria decussata
Latina Nova