BioImages: The Virtual Field-Guide (UK)

Cortinarius (Pers.) Gray (webcap toadstools)

Subtaxa (ie subgroups of this Genus)

Cortinarius (Dermocybe) (Fr.) Wünsche (a group of webcaps)
Cortinarius anomalus (Variable Webcap), eg: Cortinarius anomalus (Variable Webcap) - Fruitbody - young Cortinarius cinnamomeoluteus (a toadstool), eg: Cortinarius cinnamomeoluteus (a toadstool) - Cap - mature - in situ Cortinarius croceus (a webcap), eg: Cortinarius croceus (a webcap) - Fruitbody - side view Cortinarius sanguineus (Bloodred Webcap), eg: Cortinarius sanguineus (Bloodred Webcap) - Fruitbody - side view - in situ Cortinarius semisanguineus (Surprise Webcap), eg: Cortinarius semisanguineus (Surprise Webcap) - Fruitbody - top view - in situ Cortinarius uliginosus (a webcap), eg: Cortinarius uliginosus (a webcap) - Fruitbody - side view - lain down
Species 10 subtaxa 8 ident refs
Cortinarius (Inoloma) (Fr.) Wünsche (a group of webcaps) Subgenus 1 subtaxon  
Cortinarius alboviolaceus (Pers.) Fr. (Pearly Webcap)
Fruitbody - side view - lain down
Species    
Cortinarius (Myxacium) (Fr.) P. Kumm. (slimy-stemmed webcaps)
Cortinarius delibutus (Yellow Webcap), eg: Cortinarius delibutus (Yellow Webcap) - Fruitbody - side view - lain down Cortinarius fulvosquamosus (a toadstool), eg: Cortinarius fulvosquamosus (a toadstool) - Fruitbody - side view - lain down Cortinarius mucifluoides (Purple Stocking Webcap), eg: Cortinarius mucifluoides (Purple Stocking Webcap) - Fruitbody - lain down to show gills Cortinarius trivialis (Girdled Webcap), eg: Cortinarius trivialis (Girdled Webcap) - Fruitbody - mature - lain down
Species 5 subtaxa 8 ident refs
Cortinarius (Phlegmacium) (Fr.) Wünsche (slimy-capped webcaps)
Cortinarius calochrous (a webcap), eg: Cortinarius calochrous var. parvus (a webcap) - Fruitbody - side view showing cap Cortinarius collocandoides (a webcap), eg: Cortinarius collocandoides (a webcap) - Fruitbodies Cortinarius elegantissimus (a webcap), eg: Cortinarius elegantissimus (a webcap) - Fruitbody - in situ - oblique view Cortinarius infractus (Bitter Webcap), eg: Cortinarius infractus (Bitter Webcap) - Fruitbody - side view Cortinarius largus (a toadstool), eg: Cortinarius largus (a toadstool) - Fruitbody - side view Cortinarius triumphans (Birch Webcap), eg: Cortinarius triumphans (Birch Webcap) - Fruitbody - side view - lain down
Species 26 subtaxa 26 ident refs
Cortinarius (sg) (a group of webcaps) Subgenus 2 subtaxa  
Cortinarius limonius (Fr.) Fr. (Sunset Webcap) Species   1 ident refs
Cortinarius violaceus (L.) Gray (Violet Webcap)
Fruitbody - in situ and lain down
Species   1 ident refs
Cortinarius (Telamonia) (Fr.) Wünsche (hygrophanous webcaps)
Cortinarius armillatus (Red Banded Webcap), eg: Cortinarius armillatus (Red Banded Webcap) - Fruitbody - young - side view - lain down Cortinarius bibulus (a toadstool), eg: Cortinarius bibulus (a toadstool) - Cap - in situ Cortinarius bolaris (Dappled Webcap), eg: Cortinarius bolaris (Dappled Webcap) - Fruitbody - young - veil and gills Cortinarius flexipes (a webcap), eg: Cortinarius flexipes var. flexipes (a webcap) - Gills and upper stipe - C - close-up Cortinarius helvelloides (a toadstool), eg: Cortinarius helvelloides (a toadstool) - Fruitbodies Cortinarius hemitrichus (Frosty Webcap), eg: Cortinarius hemitrichus (Frosty Webcap) - Fruitbody - side view - lain down Cortinarius raphanoides (a toadstool), eg: Cortinarius raphanoides (a toadstool) - Fruitbodies Cortinarius subbalaustinus (a toadstool), eg: Cortinarius subbalaustinus (a toadstool) - Cap - half-dry
Species 20 subtaxa 13 ident refs
Cortinarius acutus sensu Favre. (a webcap) Species   1 ident refs
Cortinarius adalbertii J. Favre ex M.M. Moser (a webcap) Species   1 ident refs
Cortinarius aff. malachius (a Cortinarius which is very similar to C. malachius)
Fruitbody - in situ
Species    
Cortinarius argutus Fr. (a webcap) Species   2 ident refs
Cortinarius atrovirens Kalchbr. (Olive Webcap) Species   1 ident refs
Cortinarius biformis Fr. (a webcap) Species   1 ident refs
Cortinarius bulliardii (Pers.) Fr. (Hotfoot Webcap) Species   2 ident refs
Cortinarius cedretorum Maire (a webcap) Species   1 ident refs
Cortinarius citrinus J.E. Lange ex P.D. Orton (a webcap) Species   1 ident refs
Cortinarius depressus Fr. (a webcap) Species   1 ident refs
Cortinarius dibaphus Fr. (a webcap) Species   1 ident refs
Cortinarius disjungendus P. Karst. (a webcap)
Fruitbody - side view - in situ
Species    
Cortinarius eucaeruleus ((A Webcap)) Species   1 ident refs
Cortinarius evernius (Fr.) Fr. (a webcap) Species   1 ident refs
Cortinarius fagetorum M.M. Moser Species   1 ident refs
Cortinarius grallipes Fr. Species   1 ident refs
Cortinarius haematochelis (Bull.) Fr. (a fungus) Species   1 ident refs
Cortinarius hoeftii (Weinm.) Fr. (a webcap) Species   1 ident refs
Cortinarius holophaeus J.E. Lange (a fungus) Species   1 ident refs
Cortinarius ionophyllus M.M. Moser (a webcap) Species   1 ident refs
Cortinarius laetissimus Rob. Henry Species   1 ident refs
Cortinarius moenne-locozii Bidaud (a webcap) Species   1 ident refs
Cortinarius mucosus (Bull.) Cooke (Orange Webcap) Species   1 ident refs
Cortinarius paragaudis Fr. (a webcap) Species   1 ident refs
Cortinarius parvannulatus Kühner (a webcap)
Fruitbody - side view - lain down
Species    
Cortinarius pearsonii P.D. Orton (a webcap)
Fruitbody - young - side view - lain down
Species    
Cortinarius pholideus (Fr.) Fr. (Scaly Webcap)
Fruitbody - in situ
Species   2 ident refs
Cortinarius poppyzon Melot (a webcap) Species   1 ident refs
Cortinarius praestans (Cordier) Gillet (Goliath Webcap) Species   1 ident refs
Cortinarius privignoides Rob. Henry Species   1 ident refs
Cortinarius rickenianus Maire (a webcap) Species   1 ident refs
Cortinarius rigens (Pers.) Fr. (a webcap) Species   1 ident refs
Cortinarius rubellus Cooke (Deadly Webcap) Species   3 ident refs
Cortinarius rubicundulus (Rea) A. Pearson (a webcap) Species   1 ident refs
Cortinarius saporatus Britzelm. (a webcap) Species   1 ident refs
Cortinarius scutulatus (Fr.) Fr. Species   1 ident refs
Cortinarius subtortus (Pers.) Fr. (a webcap) Species    
Cortinarius torvus (Fr.) Fr. (Stocking Webcap) Species   1 ident refs
Cortinarius turgidus Fr. (a webcap)
Cap - in situ
Species    
Cortinarius urbicus (Fr.) Fr. (a webcap) Species   1 ident refs
Cortinarius valgus Fr. (a webcap) Species   1 ident refs
Unidentified Cortinarius (Unidentified Webcap Toadstools)
Cap - younger and damper
Unidentified    

Suggested Literature

Identification Works

Brandrud, T.E., Lindström, H., Marklund, H., Melot, J. & Muskos, S., 1990 Cortinarius: Flora Photographica
Kühner, R. & Romagnesi, H., 1955 Compléments a la "Flore analytique"
IV) Espéces nouvelles ou critiques de Cortinarius
Orton, P.D., 1955 Cortinarius I (Myxacium, Phlegmacium)
Orton, P.D., 1958 Cortinarius II (Inoloma, Dermocybe)
Orton, P.D., 1983 Some notes on the genus Cortinarius in Britain
Journées européennes du Cortinaire: http://www.jec-cortinarius.org/index.htm Journées européennes du Cortinaire
Karl Soop's Mycology page: http://karl.soop.org/English/myco.html Karl Soop's Mycology page
Soop, K., 2008 Cortinarius in Sweden
Cortinarius on Leif & Anita Stridvall's Botanical Site: http://www.stridvall.se/fungi/gallery/view_album.php?set_albumName=Cortinarius Cortinarius on Leif & Anita Stridvall's Botanical Site

BioInfo BioInfo (www.bioinfo.org.uk) has 12 general literature references to Cortinarius (webcap toadstools)

Cortinarius may also be covered by literature listed under:

BIOTA
(living things)
Eukaryota
(eukaryotes)
FUNGI S.S.
(true fungi)
BASIDIOMYCOTA
(spore droppers)
AGARICOMYCETES
(a class of fungi)
AGARICALES
(mushrooms and toadstools)
CORTINARIACEAE
(webcaps, rootshanks and the gypsy)
Ectomycorrhizal fungi (via Cortinarius) Macromycetes (via Cortinariaceae) Fungi s.l.

BioInfo BioInfo (www.bioinfo.org.uk) has 440 feeding and other relationships of Cortinarius (webcap toadstools)

Further Information

Characters to note in the field Colour of young gills - cut the cap in half. (The gills always turn brown as the spores ripen so must be a young cap.)
Colour of veil on young fruitbodies. (This often disappears and always gets stained rusty by the spores, so again, must be a young fruitbody.)
Presence of blue tinges on young gills, stipe apex or flesh - cut in half (again, use a young fruitbody as the blue often fades).
Smell.

If there is no fresh young cap to cut in half, unless it's one of the distinctive species - forget it!
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