Martincito's picture

Arrhenia rickenii

Observed: 23rd December 2012 By: MartincitoMartincito’s reputation in Fungi and LichensMartincito’s reputation in Fungi and LichensMartincito’s reputation in Fungi and LichensMartincito’s reputation in Fungi and Lichens
Arrhenia rickenii
in situ
spore print

On a moss-covered old brick wall.
Spores measured 6.5-8 x 4-5 µm.


Caution: Do NOT use iSpot to identify fungi to eat!

Some fungi are very poisonous so a mistaken ID could have serious consequences.

    Likely ID
    Arrhenia rickenii
    Confidence: I'm as sure as I can be.
Species interactions

No interactions present.


Martincito's picture


Hmm the notes rather lost their formatting above.
Here they are again...
1 Stem central to eccentric --> 6
6 Hymenophore with normal gills, or not growing on arctic sea shores --> 7
7 Frb with greyish to brownish colours --> 8
8 On soil, mosses, sedges or wood --> 9
9 On soil or mosses -->
10 On other mosses (than Sphagnum), or sedges or on soil --> 13
13 Stem short and medium thick, <2 times diam. of cap; sp ellipsoid, long ellipsoid or dacryoid; habitat different (to on tufts or Carex in marshes and at lake shores) --> 14
14 Gills pleated, forked and often intervenose -->
15 Clamps absent. Cap 5-25 mm, first convex, then low convex with depressed centre to funnel-shaped, with crenulate, incurved to straight margin, translucently striate, almost smooth, hygrophanous, dark brownish grey, drying greyish buff; gills decurrent, pleated, forked, often intervenose, pale greyish brown to pale olive broan, edge entire, concolorous with cap; flesh thin, greyish; smell indistinct or faintly of Pelargonium; taste indistinct. Sp 6.5-9(-10) x 3.5-5.5 µm, ellipsoid, oblong ellipsoid or dacryoid; basidia 4-spored; cystidia absent; pileipellis a cutis. Among low mosses, especially Barbula species on calcareous sand along roadsides, on lake shores and on old walls; autumn to winter.

jhn7's picture

Stunning photos!

Quite a find!

Certificate in Contemporary Science (Open)

D.M.H.'s picture

agreed very well supported

agreed very well supported with excellent details ;-)

All given ID's are subject to error/ommissions. Please seek independent verification before acting on ANY advice given. BE SAFE =)

Martincito's picture

Thanks! It was quite funny

Thanks! It was quite funny lurking about photographing this on a neighbour's wall. Eventually he came out and I asked if he minded if I took a specimen, to which he replied that he was happy for me to take the fungus as long as I didn't take any bricks!