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Galerina-graminea_spore_stat_2M

Image of Galerina

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Galerina graminea, (Velen.) Khner; syn.: Agaricus laevis Pers., Galera graminea Velen., Galerina laevis Singer., Galera laevis (Singer) Malenon & BertaultFamily: Hymenogastraceae VittadEN: Turf Bell, DE: Rasen-Hubling, Zarter Grashubling, Gelblicher RasenhublingSlo.: travnika kumicaDat.: Oct. 27. 2019Lat.: 46.360074 Long.: 13.704441Code: Bot_1268/2019_DSC8682Habitat: extensively used grassland, frequently trodden, locally almost flat terrain near a farmhouse; calcareous, colluvial, skeletal ground, exposed to direct rain, average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 570 m (1.780 feet), alpine phytogeographical region.Substratum: soil.Place: Lower Trenta valley, between villages Soa and Trenta; right bank of river Soa; near farmhouse Skokar, Trenta 2, East Julian Alps, Posoje, Slovenia EC. Comments: According to literature Galerina graminea is not a rare species. However, there are very few records documented in Slovenia. No hypha clamps have been observed. This and relatively very small, almost smooth spores distinguish this species from most of others in this genus. Galerina clavata is another species without clams, but it has much larger spores (Ref.: 2). Very specific cheilo- and caulocystidia make this determination apparently reliable.About 10 pilei growing on cca.4 m2 area; pilei diameter 6.5 16 mm (measured not expanded); stipe 3.5 6.5 cm long and of 1 1.3 mm diameter; pilei and stipe dry, no milk extruded when damaged and not bruising; smell very mild possibly farinaceous or on dust; taste indistinctive; SP initially faint in the second try abundant, orange-ocher-brown, concolorous with pileus. Spore dimensions: The first observation; spores taken from very faint spore print and gills: (7.5) 7.9 - 9.8 (11.3) (4.5) 4.6 - 5.4 (5.6) m; Q = (1.5) 1.6 - 2; N = 30; Me = 8.9 5 m; Qe = 1.8. The second observation; spores taken from abundant spore print: (7.6) 8.3 - 9.9 (10.5) (4.4) 4.6 - 5.4 (5.5) m; Q = (1.4) 1.7 - 2 (2.1); N = 33; Me = 9.2 4.9 m; Qe = 1.9. No clamps observed. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil; fresh material, in water. AmScope MA500 digital camera.Herbarium: Index Herbariorum LJF @ Mycotheca and lichen herbarium of Slovenian Forestry Institute.Ref.: (1) Personal communication (conf. via microscopy of cheilo- and caulocystidia) with Mr. Bojan Rot, www. gobenabovskem.si (2) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.5. Verlag Mykologia (2000), p 318. (3) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Wrttembergs, Band 5., Ulmer (2010), p 319. (4) www.myko.cz/myko-atlas/Galerina-graminea/(5) www.mycocharentes.fr/pdf1/381.pdf (6) svampe.databasen.org/taxon/14117 (7( gribi.net.ua/uk/galerina-graminea/ (8) A. Smith, R. Singer, A Monograph in the Genus Galerina Earle, Hafner Publ. Co. (1964); available at www.mykoweb.com/systematics/literature/A%20Monograph%20on...

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Amadej Trnkoczy
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