Observation 169193: Lactarius azonites (Bull.) Fr.
When: 2014-07-06
Who: zaca
No herbarium specimen

Notes: This group of young specimens grew on calcareous soil under Quercus trees. Some features:
- Cap of 3.5 to 4 cm, buff coloured (cream, pale brown), darker at the center and almost white at the enrolled margin, unzoned;
- Gills pale coloured (cream), crowded, with some drops of white latex;
- Stem of ~4.5 cm, almost white with small brownish marks at the base, very consistent;
- The latex remains white when removed from the gills and isolated;
- Odor pleasant and taste first mild then acrid;
- There is a very slow change of colour to pink/red in the flesh when cutted;
- Spores ornamented with spines and ridges, with average dimensions of 8.5 – 9 um in diameter;
- Cheilocystidia more or less cylindrical with pointing ends.

The main difference between Lactarius azonites (= L. fuliginosus var. albipes) and similar species: L. acris, L. pterosporus, L. fuliginosus and L. subruginosus, is that the change of color when cutted is very slow and can takes some minutes. This was what happened in this case. In fact, when I took the 3rd photo, there was no reaction to the cut; Only several minutes later when I looked to my basket I noticed a change to pink/red in the flesh of the specimen; I put the specimen on the floor an took the photo on the left of the 4th photo of this observation; On the right (photo taken some hours later) one can see that colour change was permanent.


No colour change in reaction to cut;
Colour change, some minutes later (left) and some hours later (right);
Latex taken from the gills and isolated;
Microscopy 1: Cheilocystidia;
Microscopy 3: Spores (at x1000).

Proposed Names

86% (1)
Eye3 Eyes3
Used references: Ref. 1:Lactarius Synoptic Keys to British species of Lactarius, originally published in BMS keys, Revised and updated in 2008 by Archie McAdam withPatrick Leonard’s help and supervision; available at http://www.britmycolsoc.org.uk/...; Ref. 2: http://www.funghiitaliani.it/?showtopic=20295
Based on microscopic features
Based on chemical features

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Eye3 = Observer’s choice
Eyes3 = Current consensus


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Created: 2014-07-07 14:29:22 PDT (-0700)
Last modified: 2014-07-07 14:29:40 PDT (-0700)
Viewed: 44 times, last viewed: 2016-10-26 06:30:05 PDT (-0700)
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