British Fungi and Lichens beginning with O

You will find listed here, in alphabetical order by Common Name, all the British Fungi species who's common name begins with "O" from our Flora and Fauna database. As there are a large number of species with similar names we have included the genus, species, phylum, family and kingdom to help you correctly select the one you are looking for. If we have images available the number of images is displayed in the right hand column and a link appears to those images under the species name.

All the fungi below are of the Kingdom Fungi.

This page only displays species that have common names, there is likely to be many more members of this species in the main database that are found either in or around the British Isles or somewhere within the United Kingdom that do not have common names they will however be marked native, introduced, etc. To access these return to Flora and Fauna Menu and use the World Wildlife sub-menu.

Picture Availability

If photographs are available the species name is displayed in bold with the camera icon beside it along with the number of photos available. Similarly if other types of image, e.g. paintings or drawings, are available the image icon is displayed along with the number of images. To view the images click on the species name.

Endangered Species

Where species are at risk or endangered the Common Name is displayed in red emboldened text.

Books about British Fungi

Select the Species you require

Common Name	Genus Species Var'n	Family	Order
Oak Bolete	Boletus appendiculatus	Boletaceae	Boletales
Oak Bracket	Inonotus dryadeus	Hymenochaetaceae	Hymenochaetales
Oak Curtain Crust	Hymenochaete rubiginosa x 1	Hymenochaetaceae	Hymenochaetales
Oak Mazegill	Daedalea quercina x 1	Fomitopsidaceae	Agaricales
Oak Pin	Cudoniella acicularis	Helotiaceae	Helotiales
Oak Polypore	Piptoporus quercinus	Fomitopsidaceae	Agaricales
Oak Woodwax	Hygrophorus nemoreus	Agaricaceae	Agaricales
Oakbug Milkcap	Lactarius quietus	Russulaceae	Russulales
Oakleaf Cap	Rutstroemia sydowiana	Rutstroemiaceae	Helotiales
Ochre Aldercap	Naucoria escharioides	Bolbitiaceae	Agaricales
Ochre Brittlegill	Russula ochroleuca	Russulaceae	Russulales
Ochre Corl	Ramaria decurrens	Ramariaceae	Phallales
Ochre Cushion	Hypocrea pulvinata	Hypocreaceae	Hypocreales
Oilslick Brittlegill	Russula ionochlora	Russulaceae	Russulales
Oily Waxcap	Hygrocybe quieta	Tricholomataceae	Agaricales
Old Man of the Woods	Strobilomyces strobilaceus	Boletaceae	Boletales
Oldrose Bolete	Boletus rhodopurpureus	Boletaceae	Boletales
Olive Brittlegill	Russula olivacea	Russulaceae	Russulales
Olive Brownie	Hypholoma myosotis	Strophariaceae	Agaricales
Olive Earthtongue	Microglossum olivaceum	Geoglossaceae	Helotiales
Olive Oysterling	Panellus serotinus	Tricholomataceae	Agaricales
Olive Webcap	Cortinarius atrovirens	Cortinariaceae	Agaricales
Orange Bonnet	Mycena acicula	Tricholomataceae	Agaricales
Orange Chanterelle	Cantharellus friesii	Cantharellaceae	Cantharellales
Orange Cup	Melastiza chateri	Pyronemataceae	Pezizales
Orange Knight	Tricholoma aurantium	Tricholomataceae	Agaricales
Orange Milkcap	Lactarius aurantiacus	Russulaceae	Russulales
Orange Mosscap	Rickenella fibula	Tricholomataceae	Agaricales
Orange Oak Bolete	Leccinum quercinum	Boletaceae	Boletales
Orange Peel Fungus	Aleuria aurantia	Pyronemataceae	Pezizales
Orange Tooth	Hydnellum aurantiacum	Bankeraceae	Thelephorales
Orange Waxcap	Hygrocybe aurantiosplendens	Tricholomataceae	Agaricales
Orange Webcap	Cortinarius mucosus	Cortinariaceae	Agaricales
Orchil,	Roccella tinctoria x 1	Roccellaceae	Arthoniales
Oyster Mushroom	Pleurotus ostreatus x 1	Tricholomataceae	Agaricales
Oyster Rollrim	Tapinella panuoides	Hygrophoropsidaceae	Boletales

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