It’s taken a while but here is the list of fungi found on the Thames Valley Fungal Group foray on 7th October 2018. The new reports have yet to be added to the main species lists.
| Species | Substrate | Associated Organism |
| Agaricus sylvaticus | soil leaf litter | Fagus / Quercus / Ilex |
| Ampelomyces quisqualis | mycelium | Neoerysiphe galeopsidis |
| Arcyria sp. | log pile | Quercus |
| Bisporella citrina | fallen branch | Quercus cerris |
| Chaetosphaerella phaeostroma | log pile | Quercus |
| Chlorophyllum rachodes | litter | Castanea sativa |
| Clavulinopsis helvola | soil | Poaceae |
| Clitocybe geotropa | litter | Quercus |
| Clitocybe nebularis | litter | Castanea sativa / Tilia? |
| Coniophora puteana | bark | Quercus |
| Coprinopsis lagopus | wood chips | |
| Coprinellus micaceus | root buried | Magnoliidae |
| Coprinus comatus | litter | Castanea sativa |
| Cortinarius croceus | ||
| Cumminsiella mirabilissima | leaf attached | Mahonia aquifolium |
| Cyathus striatus | wood chips | |
| Daldinia concentrica? | trunk fallen | Aesculus hippocastanum |
| Entoloma rhodopolium? | soil | Quercus cerris |
| Erysiphe heraclei | leaf attached | Heracleum sphondylium |
| Erysiphe trifolii var. trifolii | leaf attached | Trifolium pratense |
| Eudarluca caricis | sori | Puccinia violae |
| Fuligo septica | stump | Magnoliidae |
| Ganoderma australe | trunk standing | Quercus cerris |
| Golovinomyces fischeri | leaf attached | Senecio jacobaea |
| Golovinomyces sordidus | leaf attached | Plantago major |
| Gymnopus confluens | litter | Tilia? |
| Hygrocybe sp. | soil | Musci / Poaceae |
| Hygrocybe insipida | soil | Musci / Poaceae |
| Hymenochaete rubiginosa | fallen branch | Quercus cerris |
| Hypholoma fasciculare var. fasciculare | fallen branch | Prunus laurocerasus |
| Hypomyces chrysospermus | fruitbody rotten | Paxillus |
| Hypoxylon fragiforme | fallen branch | Fagus sylvatica |
| Inocybe geophylla var. geophylla | stump | |
| Kuehneola uredinis | leaf attached | Rubus fruticosus agg. |
| Laccaria amethystina | litter | Quercus |
| Laccaria laccata | soil | Poaceae |
| Lycogala terrestre | fallen branch | Fagus sylvatica |
| Lycoperdon perlatum | litter | Quercus |
| Lycoperdon pyriforme | rotten stump | Magnoliidae |
| Macrocystidia cucumis | soil | Taxus baccata? |
| Mycena rosea | leaf litter | |
| Nectria cinnabarina | fallen branch | Prunus laurocerasus |
| Neoerysiphe galeopsidis | leaf attached | Catalpa bignonioides |
| Neoerysiphe galeopsidis | leaf attached | Lamiastrum galeobdolon |
| Neoerysiphe galeopsidis | leaf attached | Stachys sylvatica |
| Neoerysiphe geranii | leaf attached | Geranium |
| Paxillus rubicundulus | litter | Alnus glutinosa / Quercus |
| Peniophora quercina | fallen branch | Quercus cerris |
| Periconia cookei | stem dead | Heracleum sphondylium |
| Peziza sp. | ||
| Phallus impudicus var. impudicus | litter | Castanea sativa |
| Phellinus pomaceus | branch attached | Prunus |
| Phlebia tremellosa | log | Quercus |
| Phleogena faginea | trunk standing | |
| Phragmidium violaceum | leaf attached | Rubus fruticosus agg. |
| Piptoporus betulinus | trunk fallen | Betula |
| Podosphaera aphanis | leaf attached | Geum urbanum |
| Podosphaera macrospora | leaf attached | Heuchera |
| Postia stiptica | log | |
| Psathyrella candolleana | litter | Castanea sativa |
| Puccinia hieracii var. hieracii | leaf attached | Centaurea nigra |
| Puccinia lapsanae | leaf attached | Lapsana communis |
| Puccinia veronicae | leaf attached | Veronica montana |
| Puccinia violae | leaf attached | Viola riviniana |
| Radulomyces molaris | branch attached | Castanea sativa |
| Rhodocollybia butyracea | soil leaf litter | Fagus sylvatica / Quercus |
| Rickenella fibula | mossy turf | Musci / Poaceae |
| Russula atropurpurea | litter | Quercus |
| Russula fragilis var. fragilis | soil | Quercus cerris |
| Russula nigricans | soil leaf litter | Fagus sylvatica / Quercus |
| Russula ochroleuca | litter | Fagus sylvatica / Quercus |
| Russula unidentified | soil | Quercus cerris |
| Scleroderma citrinum | litter | Quercus |
| Scleroderma verrucosum | litter | Quercus / Acer pseudoplatanus |
| Scutellinia scutellata | rotten log | Magnoliidae |
| Steccherinum ochraceum | fallen branch | Quercus robur |
| Stemphylium sarciniforme | leaf attached | Trifolium pratense |
| Stereum hirsutum | fallen branch | Prunus laurocerasus |
| Trametes versicolor | fallen branch | Prunus laurocerasus |
| Trichia varia? | log pile | Quercus |
| Trochila ilicina | leaf fallen | Ilex aquifolium |
| Xylaria hypoxylon | branch | Fagus sylvatica |
| Xylaria polymorpha | – | – |
