- Pachyella babingtonii
- Pachyella celtica
- Pachyella violaceonigra
- Pachykytospora tuberculosa
- Pachyphloeus citrinus
- Panaeolina foenisecii
- Panaeolus antillarum
- Panaeolus ater
- Panaeolus atrobalteatus
- Panaeolus cinctulus
- Panaeolus dunensis
- Panaeolus fimicola
- Panaeolus retirugis
- Panaeolus rickenii
- Panaeolus semiovatus
- Panaeolus sphinctrinus
- Panaeolus subbalteatus
- Panellus mitis
- Panellus serotinus
- Panellus stipticus
- Panellus stipticus v. albus
- Panellus violaceofulvus
- Pannaria rubiginosa
- Panus conchatus
- Paraconiothyrium tiliae
- Paradidymella clarkii
- Parasola auricoma
- Parasola kuehneri
- Parasola leiocephala
- Parasola plicatilis
- Parorbiliopsis minuta
- Parthenope pilatii
- Parvobasidium cretatum
- Patellaria atrata
- Patellariopsis clavispora
- Patinellaria sanguinea
- Paxillus filamentosus
- Paxillus involutus
- Paxillus panuoides
- Peltigera praetextata
- Penicillium roqueforti
- Peniophora boidinii
- Peniophora cinerea
- Peniophora erikssonii
- Peniophora halimi
- Peniophora incarnata
- Peniophora junipericola
- Peniophora laeta
- Peniophora limitata
- Peniophora lycii
- Peniophora meridionalis
- Peniophora piceae
- Peniophora pini
- Peniophora proxima
- Peniophora pseudoversicolor
- Peniophora quercina
- Peniophora reidii
- Peniophora tamaricicola
- Peniophora violaceolivida
- Perenniporia fraxinea
- Perenniporia japonica
- Perenniporia meridionalis
- Perenniporia ochroleuca
- Perichaena corticalis
- Perichaena depressa
- Periconia atra
- Perrotia flammea
- Pertusaria pustulata
- Pestalotiopsis funerea
- Pestalotiopsis versicolor
- Pezicula acericola
- Pezicula cinnamomea
- Pezicula rubi
- Peziza arenaria
- Peziza arvernensis
- Peziza badia
- Peziza badioconfusa
- Peziza badiofusca
- Peziza boltonii
- Peziza cerea
- Peziza depressa
- Peziza echinospora
- Peziza fimeti
- Peziza gerardii
- Peziza granularis
- Peziza granulosa
- Peziza lobulata
- Peziza megalochondra
- Peziza michelii
- Peziza cf micropus
- Peziza cf phlebospora
- Peziza proteana
- Peziza pseudovesiculosa
- Peziza pseudoviolacea
- Peziza repanda
- Peziza saccardiana
- Peziza saniosa
- Peziza subcitrina
- Peziza subviolacea
- Peziza succosa
- Peziza succosella
- Peziza vesiculosa
- Peziza violacea
- Pezizella alniella
- Pezizella eburnea
- Pezizella polytrichi
- Phacidium multivalve
- Phaeocollybia arduennensis
- Phaeocollybia christinae
- Phaeocollybia festiva
- Phaeocollybia lugubris
- Phaeohelotium carneum
- Phaeohelotium fagineum
- Phaeohelotium monticola
- Phaeohelotium umbilicatum
- Phaeolepiota aurea
- Phaeolus schweinitzii
- Phaeomarasmius erinaceus
- Phaeosphaeriopsis glaucopunctata
- Phallus hadriani
- Phallus impudicus
- Phanerochaete affinis
- Phanerochaete calotricha
- Phanerochaete galactites
- Phanerochaete magnoliae
- Phanerochaete martelliana
- Phanerochaete sanguinea
- Phanerochaete sordida
- Phanerochaete tuberculata
- Phanerochaete velutina
- Phellinus conchatus
- Phellinus ferreus
- Phellinus ferruginosus
- Phellinus igniarius
- Phellinus pomaceus
- Phellinus ribis
- Phellinus robustus
- Phellinus torulosus
- Phellinus tremulae
- Phellodon confluens
- Phellodon melaleucus
- Phellodon niger
- Phlebia cremeoalutaceaa
- Phlebia cremeoochracea
- Phlebia deflectens
- Phlebia lilascens
- Phlebia livida
- Phlebia nothofagi
- Phlebia ochraceofulva
- Phlebia queletii
- Phlebia radiata
- Phlebia rufa
- Phlebia subcretacea
- Phlebia subochracea
- Phlebia subulata
- Phlebia tremellosa
- Phlebia tuberculata
- Phlebiella allantospora
- Phlebiella ardosiaca
- Phlebiella christiansenii
- Phlebiella filicina
- Phlebiella tulasnelloidea
- Phlebiopsis crassa
- Phlebiopsis gigantea
- Phlebiopsis ravenelii
- Phleogena faginea
- Pholiota astragalina
- Pholiota cerifera
- Pholiota conissans
- Pholiota destruens
- Pholiota flammans
- Pholiota gummosa
- Pholiota highlandensis
- Pholiota jahnii
- Pholiota lenta
- Pholiota lubrica
- Pholiota lucifera
- Pholiota pinicola
- Pholiota populnea
- Pholiota scamba
- Pholiota squarrosa
- Pholiota tuberculosa
- Pholiotina aberrans
- Pholiotina aeruginosa
- Pholiotina aporos
- Pholiotina arrhenii
- Pholiotina filaris
- Pholiotina striipes
- Pholiotina velata
- Pholiotina vestita
- Phomatospora berkeleyi
- Phomatospora luteotingens
- Phomopsis conorum
- Phragmidium mexicanum
- Phragmidium violaceum
- Phyllotopsis nidulans
- Phyllotopsis nidulans
- Physalacria cryptomeriae
- Physarella oblonga
- Physarum album
- Physarum bethelii
- Physarum bivalve
- Physarum cinereum
- Physarum conglomeratum
- Physarum globuliferum
- Physarum leucophaeum
- Physarum schroeteri
- Physarum viride
- Picoa juniperi
- Pilobolus kleinii
- Piloderma byssinum
- Piptoporus betulinus
- Pirottaea senecionis
- Pisolithus arhizus
- Pithya cupressina
- Pithyella frullaniae
- Platychora ulmi
- Plectania melastoma
- Plectania rhytidia
- Pleomassaria siparia
- Pleospora herbarum
- Pleurotus citrinopileatus
- Pleurotus cornucopiae
- Pleurotus dryinus
- Pleurotus eryngii
- Pleurotus ostreatus
- Plicaria carbonaria
- Plicaria trachycarpa
- Plicariella flavovirens
- Plicaturopsis crispa
- Pluteus atromarginatus
- Pluteus boudieri
- Pluteus brunneoradiatus
- Pluteus cervinus
- Pluteus chrysophaeus
- Pluteus cinereofuscus
- Pluteus depauperatus
- Pluteus diettrichii
- Pluteus ephebeus
- Pluteus cf exiguus
- Pluteus hiatulus
- Pluteus hispidulus v. cephalocystis
- Pluteus inquilinus
- Pluteus izurun
- Pluteus leoninus
- Pluteus luteovirens
- Pluteus nanus
- Pluteus nanus f. griseopus
- Pluteus nothopellitus
- Pluteus pallescens
- Pluteus pellitus
- Pluteus petasatus
- Pluteus phlebophorus
- Pluteus plautus
- Pluteus podospileus
- Pluteus pouzarianus
- Pluteus romellii
- Pluteus salicinus
- Pluteus semibulbosus
- Pluteus thomsonii
- Pluteus umbrosus
- Podoscypha multizonata
- Podospora anserina
- Podospora conica
- Podospora fimiseda
- Poetschia caerulescens
- Polycephalomyces tomentosus
- Polydesmia pruinosa
- Polyporus arcularius
- Polyporus badius
- Polyporus brumalis
- Polyporus ciliatus
- Polyporus melanopus
- Polyporus squamosus
- Polyporus tuberaster
- Polyporus umbellatus
- Polyporus varius
- Porodaedalea pini
- Poronia punctata
- Porphyrellus porphyrosporus
- Porpoloma metapodium
- Porpoloma spinulosum
- Postia balsamea
- Postia fragilis
- Postia ptychogaster
- Postia stiptica
- Postia subcaesia
- Postia tephroleuca
- Proliferodiscus pulveraceus
- Proliferodiscus tricolor
- Pronectria pertusariicola
- Propolis farinosa
- Propolis leonis
- Propolis viridis
- Protocrea farinosa
- Psathyrella ammophila
- Psathyrella badiophylla
- Psathyrella bipellis
- Psathyrella candolleana
- Psathyrella corrugis
- Psathyrella cotonea
- Psathyrella fatua
- Psathyrella gossypina
- Psathyrella gracilis
- Psathyrella hydrophiloides
- Psathyrella cf impexa
- Psathyrella lacrymabunda
- Psathyrella laevissima
- Psathyrella longicauda
- Psathyrella lutensis
- Psathyrella melanthina
- Psathyrella microrhiza
- Psathyrella multipedata
- Psathyrella murcida
- Psathyrella ochracea
- Psathyrella palustris
- Psathyrella panaeoloides
- Psathyrella pennata
- Psathyrella phegophila
- Psathyrella piluliformis
- Psathyrella populina
- Psathyrella potteri
- Psathyrella prona
- Psathyrella pygmaea
- Psathyrella pyrotricha
- Psathyrella spadicea
- Psathyrella spadiceogrisea
- Psathyrella subatrata
- Psathyrella vinosofulva
- Pseudaleuria fibrillosa
- Pseudoboletus parasiticus
- Pseudoboubovia benkertii
- Pseudochaete tabacina
- Pseudoclitocybe cyathiformis
- Pseudoclitocybe expallens
- Pseudocolus fusiformis
- Pseudohalonectria lutea
- Pseudohelotium haematoideum
- Pseudohydnum gelatinosum
- Pseudomassaria chondrospora
- Pseudomerulius aureus
- Pseudombrophila cervaria
- Pseudoomphalina pachyphylla
- Pseudopithyella minuscula
- Psilachnum chrysostigmum
- Psilocybe apelliculosa
- Psilocybe coprophila
- Psilocybe crobula
- Psilocybe cubensis
- Psilocybe fimetaria
- Psilocybe horizontalis
- Psilocybe inquilina
- Psilocybe micropora
- Psilocybe montana
- Psilocybe rhombispora
- Psilocybe semilanceata
- Psilocybe turficola
- Psilocybe xeroderma
- Psilopezia nummularia
- Pteridiospora scoriadea
- Pterula caricispendulae
- Pterula gracilis
- Pterula sclerotiicola
- Pterula subulata
- Ptychoverpa bohemica
- Puccinia buxi
- Puccinia lagenophorae
- Puccinia malvaceraum
- Puccinia sorghi
- Puccinia violae
- Pulvinula convexella
- Pycnoporus cinnabarinus
- Pyrenopeziza digitalina
- Pyrenopeziza mercurialis
- Pyrenopeziza plicata
- Pyrenopeziza rubi
- Pyronema domesticum
- Pyronema omphalodes