Lactarius obscuratus (Lasch) Fr.
(Alder Milkcap)

Taxonomic hierarchy:
SpeciesLactarius obscuratus (Alder Milkcap)
SubgenusLactarius (Russularia) (a group of milkcaps)
GenusLactarius (milkcap toadstools)
FamilyRUSSULACEAE (milkcaps and russulas)
OrderRUSSULALES (an order of toadstools)
SubclassAGARICOMYCETIDAE (a subclass of basidiomycetes)
ClassAGARICOMYCETES (a class of fungi)
SubphylumAGARICOMYCOTINA (a subphylum of fungi)
PhylumBASIDIOMYCOTA (spore droppers, basidiomycetes)
KingdomFUNGI (true fungi)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Lactarius obscuratus (Alder Milkcap) :
1: Lactarius obscuratus (Alder Milkcap)
28 Sep 1999 OSGR: SU46 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
under Alder
Image 1: CapImage 2: Cap - LSImage 3: Fruitbodies - gillsImage 4: Fruitbody - gillsImage 5: Fruitbody - LSImage 6: GillsImage 7: Spores in Melzer\'s IodineImage 8: Spores in Melzer\'s Iodine (2)Image 9: Spores in Melzer\'s Iodine (3)Image 10: Spores in Melzer\'s Iodine (4)Image 11: Spores in Melzer\'s Iodine - green filterImage 12: Spores in Melzer\'s Iodine - green filter (2)
2: Lactarius obscuratus (Alder Milkcap)
23 Sep 1998 OSGR: SU56 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
under Alder; Birch, Rowan, Oak nearby
Image 1: CapImage 2: Cap - LSImage 3: FruitbodyImage 4: Fruitbody (2)Image 5: Fruitbody (3)Image 6: Fruitbody (4)Image 7: GillsImage 8: StipeImage 9: SporeImage 10: SporesImage 11: Spores (2)Image 12: Spores (3)Image 13: Spores (4)Image 14: Spores (5)Image 15: Spores (6)Image 16: Spores (7)Image 17: Spores (8)
3: Lactarius obscuratus (Alder Milkcap)
23 Sep 1998 OSGR: SU56 51° 20’ N, 1° 20’ W Vice County: Berks (VC 22) England
under Alder; Birch, Rowan, Oak nearby
Image 1: CapImage 2: Cap - LSImage 3: FruitbodyImage 4: Fruitbody (2)Image 5: Fruitbody - LSImage 6: Fruitbody - LS (2)

Identification Works

AuthorYearTitleSource
Kibby, G. 2010 Alder Carr Fungi - Agarics and Boleti of Alder Carr Field Mycology Vol 11 (1): 16-22.
Overall, A. 2008 Macrofungi of the Kenwood Estate Field Mycology Vol 9 (4): 126-130.

Lactarius obscuratus (Alder Milkcap) may also be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Lactarius obscuratus (Alder Milkcap)
BioInfoBioInfo (www.bioinfo.org.uk) has 1 host/parasite/foodplant and/or other relationships for Lactarius obscuratus (Alder Milkcap)

This milk cap is associated with Alnus glutinosus. The cap is yellowish brown to orange brown or cinnamon, rarely with olive tinges. It is distinguished from Lactarius cyathuliformis by its smaller spores.

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