• (1) Habrostictis aurantiaca - Haplaria argillacea
• (2) Haplaria brevis - Hebeloma luteum
• (3) Hebeloma mackinawense - Helicorhoidion nypicola
• (4) Helicorhoidion pulchrum - Helminthosporium pedunculatum
• (5) Helminthosporium pellucidum - Helotium kermesinum
• (6) Helotium knautiae - Helvella pusilla
• (7) Helvella pygmaea - Hendersonia pegani
• (8) Hendersonia peregrina - Herpotrichiella callunae
• (9) Herpotrichiella ciliomaris - Hexagonia albida
• (10) Hexagonia amplexans - Homostegia dermatocarpae
• (11) Homostegia diplocarpa - Humicola sardiniae
• (12) Humicola stellata var. giganteus - Hydnum amplissimum
• (13) Hydnum analogum - Hydnum versicolor
• (14) Hydnum versipelle - Hygrophoropsis ochraceolutea
• (15) Hygrophoropsis olida - Hygrophorus virgineus
• (16) Hygrophorus viridis - Hymenoscyphus repandus
• (17) Hymenoscyphus rhizophilus - Hypholoma hololanigerum
• (18) Hypholoma hydrophilum - Hypocrea epiphylla
• (19) Hypocrea estonica - Hypogymnia subcrustacea
• (20) Hypogymnia subduplicata - Hypoxylon gemmatum
• (21) Hypoxylon gigaspermum - Hysterium longum
• (22) Hysterium lonicerae - Hystrichosphaeridium tubiferum