Notes:
Growing singly in soil among hardwood leaf litter. Cap dry. Gills not marginate. Stem base bulbous. No noticeable bruising on any part. Pileipellis composed of rounded elements. Pileipellis measurements: (20.5) 21.8 – 41.6 (50.1) × (14.7) 16.1 – 35.1 (40.3) µm, Q = (1) 1.1 – 1.7 (1.8); N = 30, Me = 32.6 × 25.8 µm; Qe = 1.3. Pleurocystidia scattered and similar to cheilocystidia. Cheilocystidia oblong to utriform, hyaline and some apically encrusted with resinous material. Cheilocystidia measurements: (33.7) 33.9 – 63.6 (64.2) × (16.5) 18.2 – 30.1 (30.3) µm, Q = (1.5) 1.8 – 2.7 (3.4); N = 11, Me = 53.7 × 23.4 µm; Qe = 2.3. Basidia 4-sterigmate. Basidia measurements: (27) 27.2 – 30.7 (38) × (8.9) 9.5 – 10.6 (11.7) µm, Q = (2.7) 2.8 – 3.16 (3.2); N = 7, Me = 29.8 × 10.1 µm; Qe = 2.9. Spores smooth and hyaline. Spore measurements: (6.2) 6.5 – 7.3 (8.7) × (5.2) 5.7 – 6.1 (6.8) µm, Q = (1) 1.1 – 1.2 (1.3); N = 30, Me = 6.9 × 6 µm; Qe = 1.2

Species Lists

Images

20190724_202011 crop.jpg
20190724_202006 crop.jpg
20190724_202037 crop.jpg
DSC_2948 Gill section showing pleurocystidia and spores at 100x in NH4OH (2 drops), congo red (1 red) and phloxine (1...
DSC_9766 Spores at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9780 Pleurocystidia, basidia and spores at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9793 Cheilocystidia, basidia and spores at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9809 Cheilocystidia, basidia and spores at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9814 Cheilocystidium and spores at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9842 Pileipellis at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9853 Pileipellis at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG
DSC_9856 Pileipellis at 400x in NH4OH (2 drops), congo red (1 red) and phloxine (1 drop).JPG

Proposed Names

10% (2)
Used references: Minnis, A. M., & Sundberg, W. J. (2010). Pluteus section Celluloderma in the USA. North American Fungi, 5, 1-107.
Vellinga, E. C., & Schreurs, J. (1985). Notulae ad Floram agaricinam neerlandicam—VIII. Pluteus Fr. in West-Europe. Persoonia-Molecular Phylogeny and Evolution of Fungi, 12(4), 337-373.
Singer, R. (1956). Contributions towards a monograph of the genus Pluteus. Transactions of the British Mycological Society, 39(2), 145-232.
Based on microscopic features
57% (1)
Recognized by sight: Several different spp. going as P. deceptivus

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