When: 2014-12-26

Collection location: Parque de Monsanto, Lisboa, Portugal [Click for map]

Who: zaca

No specimen available


Microscopy: Gill edge elements;
Microscopy: Caulocystidia-1;
Microscopy: Caulocystidia-2;
Microscopy: Pileipellis-1;
Microscopy: Pileipellis-2.

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= Observer’s choice
= Current consensus


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OK! Thanks again, Herbert.
By: zaca
2015-01-06 16:11:34 CST (-0600)
Hi Herbert,
By: zaca
2015-01-06 15:15:47 CST (-0600)

I uploaded some photos from the microscopy. Following your proposal, I looked into FAN2 (see below) and saw that the two species you proposed are very similar; In the key they are separated as follows:

C. atropuncta:
Stipe, at least, with hard, dark brown to black warts on paler background; warts up to 300 um high; spores (4.0)4.5-6.0(6.5)x3.5-5.0 um; av. (4.9)5.0-5.7×4.1.5-4.5 um

C. phaeophylla:
Stipe pale grey to dark brown, glabrous or with minute, soft flocci, concolorous with or paler than the background; flocci up to 100 um high; spores (3.5)4.0-5.5(6.0)x3.0-4.0(4.5) um; av. 4.0-4.8×3.4-3.9 um

However, in the descriptions, it is also mentioned that C. phaeophylla may possess rather distinct warts on the stipe as well, which are not or hardly darker than the ground colour of the stipe.

I got the following average dimensions for the spores
av. Me = 5.2 × 4.6 µm ; Qe = 1.1;
to which I cannot give a big weight in the decision, because with my scope it is very hard to get precise measure for so small spores. Bearing this in mind and taking into account the above distinction, I will go towards C. atropuncta, since it seems to me that the stipe, of which the first photo is clear enough, fits better in this species.
On the other hand, this is my first microscopy of specimens in this genus.
What do you think about all this?

FAN2 = Flora Agaricina Neerlandica, Vol. 2, 1990.

Thanks, Herbert, for your proposal.
By: zaca
2015-01-06 11:41:51 CST (-0600)

I think you are right, that these belong to the group Camarophyllus/Camarophyllopsis. I will try to find out some of their micro features.