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Tuesday, 8 September 2015

Today at the Botanic Gardens.

Horse mushroom, Agaricus arvensis.

We took a stroll up the Waun Las meadows today. The grass at the top meadow was a bit long for a good look around but our visit the lower meadow was quite profitable. There were a number of very large field mushrooms, one had a cap around 20 cms across with a huge stout stipe. From their size we took these to be Horse mushrooms, Agaricus arvensis.

There were also a number of Waxcaps including Ballerina (Hygrocybe calyptriformis), Parrot (Hygrocybe psittacina) and Meadow  (Hygrocybe pratensis) waxcaps, and a few entoloma sp. that were past their best.

Ballerina, Parrot and Meadow waxcaps.
 At the top of the hill, the old quarry and its surroundings gave us a lovely display of collared earthstars, Geastrum triplex and a small group of stump puffballs, (Lycoperdon pyriforme). There were also a couple of slime moulds which from pictures on google alone looked like Mucilago crustacea and Fuligo septica.

Collared earthstar, with what seems to be an immature one as well.

Slime Moulds.


  1. Took our horse mushroom home and measured the spores and they were huge up to 12.5 um x 6um, larger than those listed for A. avensis,( ~9.5um) so perhaps it is something else. Perhaps A. urinascens, as this is shown with the larger sized spores???

    1. Try smelling it. They smell "fishy" to me although the books say urine (hence the name).

  2. That's how it should be done! Kibby says A urinascens, better known as 'macrosporus' --- often very large, floccose stipe and floccose ring + very large spores.
    The Geastrum triplex is nice ---- the unopened fb is 'onion-shaped' or like a crocus corm. G lageniforme does the same and the rare G corollinum also but others are 'ovoid'. The G triplex in Great glasshouse confused me as they seem to have ovoid fb's when unopened!