Observation 399192: Merismodes Earle

Notes:
Growing gregariosly on a dead, fallen stem of Phytolacca americana and on old pyrenomycetes on that stem. Basidiocarps discoid and hairy. Subiculum lacking. Basidiocarp measurements: (0.2) 0.3 – 0.46 (0.5) × 0.2 – 0.3 (0.5) mm, Q = 1 – 1.5 (2); N = 30, Me = 0.3 × 0.3 mm; Qe = 1.2. All structures inamyloid. Clamps present. Hairs brown, curled and incrusted; some with smooth, inflated tips. Hair measurements: (88.3) 94.5 – 130.1 (136.4) × (3.3) 3.4 – 4.26 (4.3) µm, Q = (22.1) 23.2 – 34.2 (39.3); N = 7, Me = 108.1 × 3.8 µm; Qe = 28.7. Spores smooth, thin-walled and hyaline. Spore measurements: (5.5) 5.8 – 8 (8.4) × (3.8) 4.5 – 5.6 (7.1) µm, Q = (1.2) 1.22 – 1.5 (1.6); N = 30, Me = 7 × 5 µm; Qe = 1.4

Species Lists

Images

2020-01-08-16.06.44 ZS PMax edit crop.jpg
2020-01-08-13.45.34 ZS DMap edit crop.jpg
2020-01-08-16.18.19 ZS DMap edit crop.jpg
2020-01-08-17.58.37 ZS PMax edit crop.jpg
DSC_5190 edit crop.jpg
DSC_5420 edit.JPG
20200103_183957 crop.jpg
20200103_204449 crop.jpg
DSC_5201 100x in Melzer's.JPG
DSC_5234 Hairs and spores at 400x in Melzer's.JPG
DSC_5248 Spores at 400x in Melzer's.JPG
DSC_5252 Hair, basidia and spores at 400x in Melzer's.JPG
DSC_5273 Hairs, clamped generative hyphae and spores at 400x in Melzer's.JPG
DSC_5213 Hairs and spores at 400x in Melzer's.JPG
DSC_5289 Hairs at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (2 drops).JPG
DSC_5300 Hairs at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (2 drops).JPG
DSC_5328 Spores and other structures at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (2 drops).JPG
DSC_5339 Hairs, basidia and spores at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (2 drops).JPG
DSC_5341 Hairs, basidia and spores at 400x in NH4OH (2 drops), phloxine (1 drop) and congo red (2 drops).JPG

Proposed Names

57% (1)
Used references: Ellis, M. B., Ellis, H., & Ellis, J. P. (1990). Fungi without gills (Hymenomycetes and Gasteromycetes): An identification handbook. Springer Science & Business Media.
Agerer, R. (1975). Flagelloscypha. Studien an cyphelloiden basidiomyceten. Sydowia Ann Mycol, 27, 131-265.
Cooke, W. B. (1962). The cyphellaceous fungi: a study in the Porotheleaceae. Berger.
Knudsen, H. (Ed.). (2012). Funga nordica: agaricoid, boletoid, clavarioid, cyphelloid and gastroid genera.1. Nordsvamp.
Læssøe, T., Davey, M. L., & Petersen, J. H. (2016). A new species of Maireina on Filipendula ulmaria. Karstenia, 56(1-2), 39-46.
Bodensteiner, P. (2006). Maireina WB Cooke. Morphologisch-anatomische Untersuchungen an einer Gattung cyphelloider Homobasidiomyceten (Doctoral dissertation, lmu).
Bodensteiner, P. (2007). Maireina afibulata and M. attenuatipilis, new members of the cyphelloid genus Maireina (Basidiomycota, Agaricomycetes). Mycological Progress, 6(4), 221-228.
Singer, R. (1986). Agaricales in modern taxonomy, 4th edn Koeltz Koenigstein.
Agerer, R. (1973). Rectipilus, eine neue Gattung cyphelloider Pilze. Persoonia-Molecular Phylogeny and Evolution of Fungi, 7(3), 389-436.
Wei, Y. L., & Qin, W. M. (2009). Two new species of cyphelloid fungi (Basidiomycota) from China. Mycotaxon, 110(1), 225-232.
Reid, D. A. (1961). Fungi venezuelani: V: The Cyphellaceae of Venezuela. Kew Bulletin, 15(2), 261-275.
Based on microscopic features
29% (1)
Recognized by sight: Only known from Puerto Rico, spore measurements a bit off
Used references
Based on microscopic features
29% (1)
Recognized by sight: Similar but only known from Venezuela and size a bit off
Used references
Based on microscopic features
-29% (1)
Recognized by sight: Similar but spores too narrow, size a bit off
Used references
Based on microscopic features

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Created: 2020-01-10 17:22:20 CST (-0500)
Last modified: 2020-01-10 17:25:47 CST (-0500)
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