Lichen Taxa held in MSC
| Genus | Species | N | MI | WI | S | Aus | E | Af | As | Notes | ||
| Haematomma | coccineum | . | . | . | . | . | E | . | . | |||
| Haematomma | erythromma | . | . | . | S | Aus | . | . | . | |||
| Haematomma | eremaeaum | . | . | . | . | Aus | . | . | . | |||
| Haematomma | fenzlianum | . | . | . | . | Aus | . | . | . | |||
| Haematomma | persoonii | N | . | . | . | . | . | . | . | |||
| Haematomma | puniceum | . | . | WI | S | . | . | . | . | |||
| Haematomma | subpuniceum | N | . | . | . | . | . | . | . | |||
| Haematomma | ventosum | . | . | . | . | . | E | . | . | |||
| Hafellia | bahiana | . | . | WI | . | . | . | . | . | syn. Buellia | ||
| Hafellia | callispora | N | . | WI | . | . | . | . | . | syn. Buellia | ||
| Hafellia | disciformis | N | MI | WI | . | . | E | . | . | syn. Buellia | ||
| Halecania | ralfsii | . | . | . | . | . | E | . | . | filed with Lecanora actophila | ||
| Harpidium | rutilans | . | . | . | . | . | E | . | . | |||
| Helminthacarpon | leprovostii | N | . | WI | . | . | . | . | . | |||
| Helocarpon | crassipes | N | . | . | . | . | E | . | . | |||
| Heppia | adriatica | . | . | . | . | . | E | . | . | |||
| Heppia | lutosa | N | . | . | . | . | E | . | As | |||
| Herpothallon | lutescens | . | . | WI | . | . | . | . | . | |||
| Herpothallon | roseotinctum | . | . | WI | . | . | . | . | . | |||
| Herteliana | taylorii | . | . | . | . | . | E | . | . | |||
| Heterocyphelium | leucampyx | N | . | . | . | Aus | . | . | . | |||
| Heterodea | beaugleholei | . | . | . | . | Aus | . | . | . | |||
| Heterodea | muelleri | . | . | . | . | Aus | . | . | . | |||
| Heterodermia | albicans | N | . | WI | S | . | . | . | . | |||
| Heterodermia | allardii | . | . | WI | . | . | . | . | . | |||
| Heterodermia | antillarum | N | . | . | . | . | . | . | . | |||
| Heterodermia | appalachensis | N | . | . | . | . | . | . | . | |||
| Heterodermia | barbifera | . | . | . | . | . | . | . | As | |||
| Heterodermia | boreale | N | MI | . | . | . | . | . | . | Imsh. | ||
| Heterodermia | boryi | . | . | . | S | . | . | . | . | |||
| Heterodermia | caserettiana | N | . | WI | S | . | . | . | . | |||
| Heterodermia | comosa | N | . | WI | . | . | . | . | . | |||
| Heterodermia | corallophora | N | . | WI | . | . | . | . | . | |||
| Heterodermia | crocea | N | . | WI | . | . | . | . | . | |||
| Heterodermia | dactyliza | . | . | . | S | . | . | . | . | |||
| Heterodermia | dendritica | . | . | WI | . | . | . | . | As | |||
| Heterodermia | dendritica | var. | propulagifera | . | . | WI | . | . | . | . | . | |
| Heterodermia | diademata | N | . | . | . | . | . | . | As | |||
| Heterodermia | diademata | f. | brachyloba | . | . | . | . | . | . | . | As | |
| Heterodermia | dissecta | . | . | . | . | . | . | . | As | |||
| Heterodermia | erinacea | N | . | . | . | . | . | . | . | |||
| Heterodermia | flabellata | . | . | WI | . | . | . | . | . | |||
| Heterodermia | flavosquomosa | . | . | . | S | . | . | . | . | |||
| Heterodermia | fragilissima | . | . | . | . | . | . | . | As | |||
| Heterodermia | galactophylla | N | . | WI | . | . | . | . | . | |||
| Heterodermia | granulifera | N | . | . | . | . | . | . | . | |||
| Heterodermia | hypocaesia | . | . | . | . | . | . | . | As | |||
| Heterodermia | hypoleuca | N | MI | . | . | . | . | . | As | |||
| Heterodermia | isidiigera | N | . | WI | . | . | . | . | . | |||
| Heterodermia | isidiophora | . | . | . | . | . | . | . | As | |||
| Heterodermia | japonioca | N | . | . | . | . | . | . | . | |||
| Heterodermia | lamelligera | N | . | W | . | . | . | . | . | |||
| Heterodermia | leucomela | N | . | WI | S | . | E | Af | As | |||
| Heterodermia | lutescens | . | . | WI | . | . | . | . | . | |||
| Heterodermia | magellanica | . | . | . | S | . | . | . | . | |||
| Heterodermia | multicilata | . | . | . | S | . | . | . | . | |||
| Heterodermia | microphylla | . | . | . | . | Aus | . | . | . | |||
| Heterodermia | namaquana | N | . | . | . | . | . | . | . | |||
| Heterodermia | obscurata | N | MI | . | S | . | E | . | As | |||
| Heterodermia | papuana | . | . | . | . | . | . | . | As | |||
| Heterodermia | podocarpa | . | . | WI | . | . | . | . | . | |||
| Heterodermia | propagulifera | N | . | WI | . | . | E | . | As | |||
| Heterodermia | pseudospeciosa | N | . | WI | . | . | . | . | As | |||
| Heterodermia | rugulosa | N | . | . | . | . | . | . | . | |||
| Heterodermia | spathulata | N | . | . | . | . | . | . | . | |||
| Heterodermia | speciosa | N | MI | WI | . | Aus | E | . | As | |||
| Heterodermia | squamulosa | N | . | WI | . | . | . | . | . | |||
| Heterodermia | subcomosa | . | . | . | . | Aus | . | . | . | |||
| Heterodermia | subisidiosa | N | . | . | . | . | . | . | . | |||
| Heterodermia | vincentiana | . | . | WI | . | . | . | . | . | Imsh. | ||
| Heterodermia | vulgaris | . | . | WI | . | . | . | . | . | |||
| Himanthormia | lugubris | . | . | . | S | . | . | . | . | Antarctica | ||
| Homothecium | opulentum | . | . | . | S | . | . | . | . | |||
| Homothecium | sorediosum | . | . | . | S | . | . | . | . | |||
| Hubbsia | parishii | N | . | . | . | . | . | . | . | |||
| Hydrothyria | venosa | N | . | . | . | . | . | . | . | |||
| Hymenelia | cyanocarpa | . | . | . | . | . | E | . | . | syn. Ionaspis | ||
| Hymenelia | epulotica | . | . | . | . | . | E | . | . | syn. Ionaspis | ||
| Hymenelia | epulotica | var. | crustosa | . | MI | . | . | . | . | . | . | syn. Ionaspis |
| Hymenelia | heteromorpha | . | . | . | . | . | E | . | . | syn. Ionaspis | ||
| Hymenelia | melanocarpa | . | . | . | . | . | E | . | . | syn. Ionaspis | ||
| Hymenelia | rhodopis | . | . | . | . | . | E | . | . | syn. Ionaspis | ||
| Hyperphyscia | adglutinata | N | MI | WI | S | Aus | E | . | . | |||
| Hyperphyscia | minor | . | . | WI | . | . | . | . | . | |||
| Hyperphyscia | syncolla | N | . | . | . | Aus | E | . | As | |||
| Hypocenomyce | australis | . | . | . | . | Aus | . | . | . | |||
| Hypocenomyce | caradocensis | . | . | . | . | . | E | . | . | |||
| Hypocenomyce | castaneocinerea | N | . | . | . | . | . | . | . | |||
| Hypocenomyce | foveolata | . | . | . | . | Aus | . | . | . | |||
| Hypocenomyce | friesii | N | MI | . | . | . | E | . | . | |||
| Hypocenomyce | praestabilis | N | . | . | . | . | . | . | . | |||
| Hypocenomyce | scalaris | N | MI | . | . | Aus | E | . | As | |||
| Hypocenomyce | xanthococca | N | . | . | . | . | . | . | . | |||
| Hypogymnia | antarctica | . | . | . | S | . | . | . | . | |||
| Hypogymnia | austerodes | N | . | . | . | . | . | . | . | |||
| Hypogymnia | billandieri | . | . | . | . | Aus | . | . | . | |||
| Hypogymnia | bitteri | N | . | . | . | . | E | . | . | |||
| Hypogymnia | duplicata | N | . | . | . | . | . | . | . | |||
| Hypogymnia | enteromorpha | N | . | . | . | Aus | . | . | . | |||
| Hypogymnia | enteromorphoides | . | . | . | . | Aus | . | . | . | |||
| Hypogymnia | farinacea | . | . | . | . | . | E | . | . | |||
| Hypogymnia | heterophylla???? | . | . | . | . | . | . | . | As | |||
| Hypogymnia | imshaugii | N | . | . | . | . | . | . | . | |||
| Hypogymnia | inactiva | N | . | . | . | . | . | . | . | |||
| Hypogymnia | krogiae | N | . | . | . | . | . | . | . | |||
| Hypogymnia | lugubris | . | . | . | S | Aus | . | . | . | |||
| Hypogymnia | lugubris | var. | compacta | . | . | . | . | Aus | . | . | . | |
| Hypogymnia | metaphysodes | N | . | . | . | . | . | . | . | |||
| Hypogymnia | mollis | N | . | . | . | . | . | . | . | |||
| Hypogymnia | mundata | . | . | . | . | Aus | . | . | . | |||
| Hypogymnia | occidentalis | N | . | . | . | . | . | . | . | |||
| Hypogymnia | physodes | N | MI | . | . | . | E | . | . | |||
| Hypogymnia | pulverata | . | . | . | . | Aus | . | . | . | |||
| Hypogymnia | rugosa | N | . | . | . | . | . | . | . | |||
| Hypogymnia | subobscura | N | . | . | . | . | . | . | . | |||
| Hypogymnia | subphysodes | . | . | . | S | Aus | . | . | . | |||
| Hypogymnia | tubulosa | N | MI | . | . | . | E | . | . | |||
| Hypogymnia | tubularis | . | . | . | . | Aus | . | . | . | |||
| Hypogymnia | turgidula | . | . | . | . | Aus | . | . | . | |||
| Hypogymnia | vittata | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | bogotensis | . | . | . | S | . | . | . | . | |||
| Hypotrachyna | brevirhiza | . | . | . | S | . | . | . | . | |||
| Hypotrachyna | costaricensis | . | . | WI | . | . | . | . | . | |||
| Hypotrachyna | croceopustulata | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | dactylifera | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | densirhizinata | . | . | . | S | . | . | . | . | |||
| Hypotrachyna | enderythracea | . | . | S | . | . | . | . | ||||
| Hypotrachyna | endochlora | . | . | . | . | . | E | . | . | |||
| Hypotrachyna | ensifolia | N | . | WI | . | . | . | . | . | |||
| Hypotrachyna | exsecta | . | . | . | . | . | . | . | As | |||
| Hypotrachyna | exsplendens | . | . | WI | . | . | . | . | . | |||
| Hypotrachyna | flavida | . | . | . | S | . | . | . | . | |||
| Hypotrachyna | flavovirens | . | . | . | S | . | . | . | . | |||
| Hypotrachyna | gondylophora | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | hypertrypello | . | . | . | . | . | . | . | As | |||
| Hypotrachyna | hypotrachyna | . | . | WI | . | . | . | . | . | |||
| Hypotrachyna | imbricatula | N | . | . | S | . | . | . | . | |||
| Hypotrachyna | immaculata | . | . | . | . | . | . | Af | . | |||
| Hypotrachyna | kinbalensis | . | . | . | . | . | . | . | As | |||
| Hypotrachyna | laevigata | N | . | WI | S | . | . | . | . | |||
| Hypotrachyna | leiophylla | . | . | . | . | . | . | Af | . | |||
| Hypotrachyna | lineariloba | . | . | WI | . | . | . | . | . | |||
| Hypotrachyna | livida | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | microblasta | N | . | . | S | . | . | . | . | |||
| Hypotrachyna | osseoalba | N | . | . | . | Aus | . | . | . | |||
| Hypotrachyna | physcioides | N | . | WI | . | . | . | . | As | |||
| Hypotrachyna | pulvinata | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | prolongata | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | reducens | . | . | . | . | . | . | . | As | |||
| Hypotrachyna | revoluta | N | MI | . | . | Aus | E | . | . | |||
| Hypotrachyna | rockii | N | . | . | S | . | E | . | . | |||
| Hypotrachyna | sinuosa | N | . | . | S | Aus | . | . | As | |||
| Hypotrachyna | subaffinis | . | . | WI | . | . | . | . | . | |||
| Hypotrachyna | subsaxatilis | N | . | . | . | . | . | . | . | |||
| Hypotrachyna | taylorensis | . | . | . | . | . | E | . | . | |||
| Hypotrachyna | virginica | N | . | . | . | . | . | . | . |
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