This is my first post here after this forum was being recommended to me by an expert. I have an Entoloma sp., perhaps section Undati (or Fernardae) which I cannot conclude.
A group of 20-30 mushrooms were found growing from damp, calcareous, slightly sandy soil in shade of date-palm trees. Specimens dull brown, 2-3cm long, with a pileus of 1-2(3)cm diameter, hygrophanous, always with an evident central depression; ring, veil, vulva absent. Stipe concolourous with pileus, flesh white followed by a brown wall. Lamellaa (gills) pale brown/ochre, adnate to shortly subdecurrent. Sporeprint tobacco brown with a faint pinkish hue. Spores subglobose with 7(-8) angles, and with a large oil component. Basidia 30-35um long, usually 4-spored. Basidioles numerous. Cheilocystidia rare to absent. pleurocystidia exceptional (=absent). Pileipellis filamentous cutis with pigment encrustations on the wall. Clamp junctions not observed.
Can you please help? I have dried specimens for further tests.