Some that have been recorded on Woodchip in Britain, although not necessarily restricted to it, or particularly commonly found on it: –
Abortiporus biennis
Agaricus augustus
Agaricus subrufescens
Agaricus sylvaticus
Agrocybe arvalis
Agrocybe praecox
Agrocybe putaminum
Agrocybe rivulosa
Armillaria mellea
Bolbitius titubans var. olivaceus
Buchwaldoboletus sphaerocephalus
Clathrus archeri
Clitocybe nebularis
Clitocybe obsoleta
Collybia biformis
Collybia maculata
Conocybe inocybeoides
Conocybe tenera
Conocybe vexans
Coprinopsis lagopus
Coprinus atramentarius
Coprinus micaceus
Coprinus picaceus
Crucibulum laeve
Cyathus olla
Cyathus striatus
Fuligo septica
Geastrum triplex
Gymnopilus dilepis
Gymnopilus penetrans
Gymonopilus hybridus
Gyromitra esculenta
Hygrophoropsis aurantiaca
Hypholoma fasciculare
Kuehneromyces mutabilis
Lacrymaria lacrymabunda
Lepiota cristata
Lepista saeva
Lepista sordida
Leratiomyces ceres
Leucoagaricus leucotithes
Leucocoprinus cretaceus
Macrocystidia cucumis
Melanoleuca verrucipes
Morchella elata
Panaeolus rickenii
Peziza repanda
Peziza vesiculosa
Pluteus petasatus
Pluteus romelii
Psathyrella cf microrhiza
Psathyrella conopilus
Psathyrella microrhiza
Psilocybe cyanescens
Psilocybe percevalii
Rhodocollybia butyracea
Tarzetta catinus
Tarzetta scotica
Tubaria furfuracea
Volvariella gloiocephala
Xylaria hypoxylon
No doubt there will be more.
Regards,
Mike.