© The Author(s) 2014 Published by Polish Botanical Society Flammulina ononidis – first record in Poland JANUSZ ŁUSZCZYŃSKI,, BOŻENA ŁUSZCZYŃSKA, AGNIESZKA TOMASZEWSKA, KINGA SOBAŚ, MAŁGORZATA KOSTRZEWA and KATARZYNA GRUDZIEŃ Department of Botany, Institute of Biology, Jan Kochanowski University Świętokrzyska 15, PL-25-406 Kielce, jluszcz@ujk.kielce.pl Łuszczyński J., Łuszczyńska B., Tomaszewska A., Sobaś K., Kostrzewa M., Grudzień K.: Flammulina ononidis – first record in Poland. Acta Mycol. 49 (1): 79–85, 2014. The authors present a first record of Flammulina ononidis in Poland. This species was characterized in respect of macro- and micromorphological features, which were illustrated with the original figures and photographs. The habitat conditions of the recorded site were also described. A short discussion concerning the similar species and the ecology and threats of presented fungus species is provided. Key words: fungi, Basidiomycota, Nida Basin, Ononis spinosa, xerothermic grasslands INTRODUCTION The genus Flammulina numbers about 15 species, of which in Europe according to Horak (2005) five, Petersen et al. (on-line) seven species, but when Pérez-Butrón and Fernández-Vicente (2007) described F. cephalariae the number of species is cur- rently eight. In Poland, up to now, were known only two species – F. velutipes and F. fennae (Wojewoda 2003). In 2012 in Poland the first site of another species of this genus namely F. ononidis was recorded. This taxon, mostly known from Europe, was the first time described by Arnolds (1977), in Germany. The aim of this article is the presentation and description of F. ononidis first site in Poland, with a detailed description of the macro- and micromorphological fea- tures, ecology, distribution and threat. MATERIAL AND METHODS In November and December 2012 more than 50 Flammulina ononidis fruitbodies were collected, and the preparations were made from both the fresh and dry material. The ACTA MYCOLOGICA Vol. 49 (1): 79–85 2014 DOI: 10.5586/am.2014.007 Dedicated to Professor Maria Ławrynowicz on the occasion of the 45th anniversary of her scientific activity 80 J. Łuszczyński et al. © The Author(s) 2014 Published by Polish Botanical Society fruitbodies were dried for 24 hours in the oven in temperature 39°C. The microscopic features were observed with the light microscope using the standard chemical rea- gents, 10% KOH and floxine. The spores were measured in the sample of 50 spores obtained from 5 fruitbodies. The drawings of the spores and hyphae, pileocystidia and ixohyphidia were made based on the original photographs taken during the mi- croscopic observations. The dried fruitbodies were deposited in the Fungarium of the Faculty of Mathematics and Science, Jan Kochanowski University in Kielce. RESULTS Description of the fruitbody. The fruitbody cap in the mature phase is flat-convex or flat, 15–45 mm in diameter, shiny, in a fresh state viscid, hygrophanous, at the cap edge the gills can be seen through, and in the old fruitbodies the cap is dis- tinctly striped. The edges are from yellow-brown to golden-brown, changing in the direction of top, firstly into bright orange, and later on the top into bright brown, cinnamon-brown, dark carmel to rust-brown (Figs 1–4). The caps of young fruitbod- ies are semispherical, slightly convex, golden-brown, bright brown-orange, elastic. The stem measures 30–85 x 2.5–3.5 mm, cylindrical, ending at the bottom part root like or spindle-shaped. The surface velvety. In the upper part, towards the gills, al- most white or from creamy to bright yellow. The stipe colour is changing downwards, from bright lemon-yellow, through bright brown, and chocolate brown at the base, particularly in the mature fruitbodies. The stem inside empty. The gills are bright, white-creamy, but near to the edge the cap with an orange tint, 3–5 mm wide, of dif- ferent length, adnexed, moderately thicken, with a straight and complete edge. The flesh elastic, in the cap pale yellow, in the upper part of stem whitish, in the bottom part particularly at the base wax-yellow, the taste mild, the smell indistinct. The basidia narrowly club like, four-spores, 28–34 x 6.5–7 μm. The spore mass white, cream-white. The spores from wide eliptical to almost almond like with two large or numerous different size drops of the fat, colourless and smooth, (9.45)10.8– 13.5 x 4.7–6 μm in size (Fig. 5). Pleurocystidia thin-walled 40–65 x 11.5–17.5 μm, of different shape, club like elongated, eliptical, inversely club like. Cheilocystidia numerous, similar to the pleurocystidia. Pileipellis made of the ixohyphidia and pile- ocystidia. The ixohyphidia thick-walled, branched either tree like or coral like or not branched, measuring 30–75 x 3.5–6.7 μm (Fig. 6). The pileocystidia narrowly lageni- form, 68–135 x 8.1–12 μm, thick-walled, at the base sometimes bent like letter “S”. The stem surface covered with the caulocystidia and cylindrical thin-walled hyphae. The caulocystidia are similar to the pileocystidia but they are slightly wider and more swelled. The thin-walled hyphae are moniliform and slightly constricted towards the top, often with short terminal cells. The hyphae in the stem upper part thin-walled and colourless, in the bottom part thick-walled with brown pigment. The siTe descripTion. The fruitbodies of Flammulina ononidis were found in the Nida Basin, 1 km west of the Pińczów town (square ATPOL FE 13), in the phy- tocenosis of the alliance Cirsio-Brachypodion, in Inuletum ensifoliae and Thalictro- Salvietum, which cover the southern slope of the limestone hills referred to as the “Góry Pińczowskie”. The fruitbodies were growing singly and in small groups on the Flammulina ononidis – first record in Poland 81 © The Author(s) 2014 Published by Polish Botanical Society Figs 1–4. Flammulina ononidis on xerothermic grassland (Photos 1–3 by K. Sobaś, Photo 4 by A. Tomaszewska). 1 3 2 4 82 J. Łuszczyński et al. © The Author(s) 2014 Published by Polish Botanical Society soil, in the immediate neighbourhood of Ononis spinosa. The role of Ononis spinosa in the mentioned grasslands is particularly significant considering its quantitative participation. These are the phytocenosis where Ononis spinosa covers the patches in the density from 20% to 30%. The areas of these communities up to not long ago were still grazed by the household cattle. Presently the grazing since five years was completely ceased. The composition and the plant species participation in the inves- tigated communities are illustrated by the phytosociological relevés. Inuletum ensifoliae, Ch.Ass.: Carlina onopordifolia +.2, Inula ensifolia 5.5, Linum hirsutum +; others: Achillea pannonica +, Adonis vernalis +, Asperula cynanchica +, Avenastrum pratense +, Brachypodium pinnatum 1.1, Carlina vulgaris +, Centaurea scabiosa +, Carex humilis 2.2, Euphorbia cyparissias +, Festuca rupicola +.2, Galium verum 1.2, Melampyrum arvense 1.1, Ononis spinosa 2.2, Peucedanum cervaria 2.2, Ranunuculus bulbosus +, Salvia pratensis +, Sanguisorba minor +, Seseli annuum +, Thesium linophyllon +, Thymus pannonicus +.2, Th. marschallianus 1.2. Thalictro-Salvietum: Elymus hispidus subsp. hispidus 2.2, Adonis vernalis 1.1, Ag- rimonia eupatoria 1.2, Allium oleraceum +, Anemone sylvestris 1.2, Brachypodium pinnatum 2.3, Carex humilis +.2, Coronilla varia +, Erigeron acer +, Euphorbia cy- parissias +.2, Festuca rupicola +.2, Fragaria viridis +.2, Galium verum 2.3, Geranium sanguineum +, Gypsophila fastigiata 1.2, Medicago falcata +, Ononis spinosa 3.3, Plantago lanceolata +, Salvia pratensis 3.3, Salvia verticillata 1.2, Seseli annuum +, Thalictrum minus 2.2, Thesium linophyllon 1.2. The fruitbodies were observed and collected from November 2012 till January 2013. It is interesting that the mycelium was still producing new fruitbodies in Janu- ary, despite of earlier frosts up to -150C, at the turn of November and December 2012. General disTribuTion. Flammulina ononidis is known first of all from the Euro- pean countries. It was recorded up to now from: Austria (Krisai-Greilhuber 1999), Croatia (Tkalčec et al. 2005), Czech Republic (Antonín 2006), Belgium (Walleyn, Vandeven 2006), Denmark (Petersen, Vesterholt 2003), France (Anonymus 1, 2, on- line), Germany (Arnolds 1977; Krieglsteiner 1978), Hungary (Babos 1968; Cetto 1994), Estonia (Urbonas et al. 1986), Italy (Petersen et al., on-line), Russia (Peters- en et al., on-line), Slovakia (Ripková et al. 2008) and Turkey (Pekşen, Karaca 2003). Fig. 5. Flammulina ononidis: spores. Scale bar = 10 μm. Fig. 6. Flammulina ononidis: a – pileocyst- idia, b – ixohyphidia. Scale bar = 10 μm. Flammulina ononidis – first record in Poland 83 © The Author(s) 2014 Published by Polish Botanical Society DISCUSSION Flammulina ononidis is the species mainly connected with Ononis spinosa. The ma- jority of until now published data refer to this plant species. However, it is interest- ing that, Urbonas et al. (1986) collected the fruitbodies of F. ononidis on Trifolium pratense. Perhaps it is possible to collect F. ononidis fruitbodies on the other Fabace- ae family plants. It is curious that Redhead and Petersen (1999) in California, found F. velutipes var. lupinicola on Lupinus arboreus. Whereas Pérez-Butrón and Fernán- dez-Vicente (2007) described from the northern Spain a new species F. cephalar- iae of which the mycelium were developing on the roots of Cephalaria leucantha (Dipsacaceae). These examples provide an interesting perspective on the ecology of some species of the genus Flammulina and their connection with the host plants. There is a striking morphological similarity of some Flammulina species and this can pose a quite serious problem when identifying species in the field. Distinctive dif- ferences between the species are marked at the level of the microscopic structures, in particular of the features referring to the structure of the cap skin and the size of spores. In table 1 are presented the spores sizes for the selected taxa of Flammulina genus. The fruitbodies of these taxa morphologically are very similar. The spores size of Flammulina ononidis collected in Pińczów are almost precisely the same as those presented by Arnolds (1977) and Bas (1983). Information referring to the ecology of F. ononidis are also concurrent with our observations referring to the investigated site in Pińczów. According to Antonín (2006), Bas (1995), Hagara et al. (2005), Klán (1978), (Kotlaba 1995), Ripková et al. (2008) it is a species which prefers the habitats on the limestone soils in the plant communities belonging to the alliances Bromion erecti and Cirsio-Brachypodion pin- nati from Festuco-Brometea class. A very important element referring to the habi- tat demands is Ononis spinosa as the host plant. This plant prefers dry, sufficiently Table 1 Comparison of spore size of the similar species from the Flammulina genus Species Authors Size of spores Q av. Q Plant host F. ononidis Arnolds (1977) (7.5) 8.5–13 (14) x (4) 4.5–6 . . Ononis spinosa F. ononidis Bas (1983) (7.5) 8.5–12.5 (14) x (4) 4.5–5.5 (6) (1.6) 1.7–2.45 1.9–2.3 Ononis spinosa F. ononidis Horak (2005) 8.5-13 x 4.5-5 . . Ononis spinosa F. ononidis Ripková (2008) (8.6) 9.4–10.6 (11.2) x (4.1) 4.3–5.2 (6) (1.76) 1.94–2.28 (2.43) 2.11 Ononis spinosa F. velutipes var. lupinicola Redhead and Petersen (1999) 7–14.8 x 3.7–6.6 av. 4.5–5.4 . . Lupinus arboreus F. cephalariae Pérez-Butrón and Fernández- Vicente (2007) (9.2) 12–16.8 (17) x (5) 5.6–7.6 (8) 2 Cephalaria leucantha F. velutipes Petersen et al. (on-line) 6–9.5 x 3–4 . 2–2.3 hardwood trees, mainly Salix, Populus, Alnus F. elastica Petersen et al. (on-line) 8–11.5 x 3–4 . 2.5–3 hardwood trees, mainly Salix 84 J. Łuszczyński et al. © The Author(s) 2014 Published by Polish Botanical Society sunny habitats, growing on different soils from acid and rather loose sands to the soils more heavy and rich in CaCO3. In Poland it is rather rare species, mostly con- nected with the xerothermic habitats. According to the cited authors F. ononidis was also found on the limestone sands of dunes and mentioned from the calcareous dunes and river dikes. endanGermenTs. Flammulina ononidis belongs to the endangered fungi in Aus- tria (Krisai-Greilhuber 1999), Croatia (Tkalčec et al. 2005), Czech Republic (Holec, Beran 2006) and Germany (Benkert et al. 1996). In Poland the endangered problem for F. ononidis is similar to that in the above mentioned countries. This results from the discontinuation of traditional forms of exploitation of the xerothermic grass- lands. As a result of this the grasslands are subjected to succession and are over- grown by the shady shrubby brushwoods. An effective form of both the fungus and hose plant protection is an active protection of the habitats and the types of commu- nities, which are conducive for development of F. ononidis and Ononis spinosa. 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Brussel. www.inbo.be/docupload/3062.pdf Flammulina ononidis – pierwsze stanowisko w Polsce Artykuł prezentuje nowy dla Polski gatunek grzyba Flammulina ononidis. Gatunek ten został scharakteryzowany pod względem jego cech makro- i mikroskopowych, a także warunków siedliskowych, ze szczególnym uwzględnieniem składu fitocenoz w których wyrastał. Nowe stanowisko grzyba zostało znalezione na wzgórzach kserotermicznych koło Pińczowa w pła- tach Inuletum ensifoliae i Thalictro-Salvietum (klasa Festuco-Brometea), gdzie wyrastał na ko- rzeniach Ononis spinosa. Przedstawiono krótką dyskusję dotyczącą gatunków podobnych oraz ekologii i zagrożeń prezentowanego gatunku grzyba. 2014-06-30T22:29:49+0200 Polish Botanical Society