In section Amidella, the complex of Amanita lepiotoides comprises the two better known mediterranean species Amanita ponderosa and Amanita curtipes (Moreno, Gabriel, et al. 2008)
It’s a rare Amanita species with a southern european distribution, known for a very long time, well recognizable by macromorphological features. It is reported growing in summer in broadleaved forests with oak or beech.
The number of findings for this species, since it was described, is very low, and suggests that its population might be very limited.
Amanita lepiotoides is only known from southern and central Europe: most reports are from Spain (Arrillaga & Mayoz, 2005; Jimenez, 2010), central and southern France (Burdy, 1968; Rouzeau, 1982); and the whole of Italy (Anastase & La Rocca 1997; Galli, 2000; Zecchin, 2000; Ciccarone et al. 2005). It is also reported in Switzerland, southern Austria, Slovenia and northern Croatia (Tkalčec et al. 2008), and recently found in several sites in northern and western Hungary (Zoltán, 2010).
Occurrence is likely in southern Germany, Slovakia and Bosnia as well, but no reports have been found.
Amanita lepiotoides is currently known from less than 60 sites globally, most of which are located in Italy and France.
Only about half of these records are from the last 20 years, some of them are 100 years old or more, so the species is not necessarily still present in those sites.
The number of functional individuals (single mycelia) per site is usually 1, rarely 2 or more (Burdy, 1968). The fruiting is often scarce, most findings consist in 1 or 2 fruitbodies.
Population Trend: Uncertain
Amanita lepiotoides is ectomycorrhizal with broadleaved trees.
It is reported growing under Fagus sylvatica (Zoltán, 2010) and in presence of Castanea sativa (Anastase & La Rocca, 1997), but the most common association seems to be with Quercus.
It has been found in association with Quercus pyrenaica (Jimenez, 2010), Quercus robur (Arrillaga & Mayoz, 2005), Quercus cerris (Pers. comm.), Quercus petraea (Zoltán, 2010).
Most of these reports come from rather dry and termophilous forests, both on calcareous and acidic soils.
Fruit body growth is reported mostly reported from July to August.
Some of the Natura 2000 habitats possibly suited for this species are 9110, 9120, 9150, 9210, 9220, 9130, 91G0, 91K0, 9260…
Possible threats to the conservation of Amanita lepiotoides are disturbances in deciduous forests caused by management, for example clear cuts (Keenan & Kimmins, 1993), and the substitution of autochtonous Fagaceae species by some alien tree species (Robinia pseudoacacia, Ailanthus altissima) which easily enter disturbed forest ecosystems (Radtke et al., 2013).
Moreover, substitution of deciduouos broadleaf forests with conifer plantations for timber production is a common practice in many of the countries in which Amanita lepiotoides occurs (Gómez-Aparicio, Lorena, et al.), thus reducing the possible sites of growth for this species.
Changes in temperatures and precipitation patterns due to climate change could also induce negative changes in the habitats of growth of this species.
Better knowledge of the precise habitat requirements of Amanita lepiotoides is needed to better understand the actual threats to its conservation.
More information should be gathered about the ecological features of the sites of growth of Amanita lepiotoides, to allow for a better understanding of the habitat requirements of this species. It would be desirable to indentify the main Natura 2000 habitats this species is associated with.
The edibility of Amanita lepiotoides is unknown. Some species in the same section have norleucinic toxicity (Kirchmair, Martin, et al. 2001)
Barla, J.B. 1885. Liste des champignons nouvellement observés dans le département des Alpes-Maritimes. Sous-Genre I.- Amanita. Bulletin de la Société Mycologique de France. 1:189-194
Moreno, Gabriel, et al. “Molecular phylogenetic analysis shows that Amanita ponderosa and A. curtipes are distinct species.” Mycological Progress 7.1 (2008): 41-47.
Moreno, G., Platas, G., Peláez, F., Bernedo, M., Vargas, A.
Radtke, A., et al. “Traditional coppice forest management drives the invasion of Ailanthus altissima and Robinia pseudoacacia into deciduous forests.” Forest Ecology and Management 291 (2013): 308-317
Gómez-Aparicio, Lorena, et al. “Are pine plantations valid tools for restoring Mediterranean forests? An assessment along abiotic and biotic gradients.” Ecological applications 19.8 (2009): 2124-2141.
Keenan, Rodney J., and J. P. Kimmins. “The ecological effects of clear-cutting.” Environmental Reviews 1.2 (1993): 121-144.
Kirchmair, Martin, et al. “Amanita poisonings resulting in acute, reversible renal failure: new cases, new toxic Amanita mushrooms.” Nephrology Dialysis Transplantation 27.4 (2011): 1380-1386.
Z. Tkalcec, A. Mesic, N. Matocec, I. Kusan “Red Book of Croatian Fungi.” Minstry of Culture, State Institute for Nature Protection, Republic of Croatia. Zagreb (2008)
Jimenez G. P. “Consideraciones sobre especies raras y/o durmientes: el caso de Amanita lepiotoides en la provincia de Salamanca” Bol. Micol. Lazarillo, 4: 21-22 (2010)
Arrillaga & Mayoz. “Amanita lepiotoides Barla, primera cita para el País Vasco.” Munibe 56 (2005): 21-28.
Anastase & La Rocca “A gathering of Amanita lepiotoides on the outskirts of the Ficuzza wood district in Sicily.” Micologia e Vegetazione Mediterranea, 12(1) 11-14
Ciccarone et al..: An annotated list of macrofungi from Gargano areas (S-Italy). Fl. Medit. 15 (2005): 621-668.
Burdy, J. “Amanita lepiotoides (Barla) dans la région lyonnaise.” Publications de la Société Linnéenne de Lyon 37.5 (1968): 184-186.
Rouzeau, C. “Amanita lepiotoides Barla recoltee a Sainte-Michel de Montaigne (Dordogne).” Bulletin de la Societe linneenne de Bordeaux (1982).
Galli, R. “Due Amanita poco frequenti: Amanita gemmata f. amici e Amanita lepiotoides.” Boll. Gr. micol. G. Bres. (n.s.) 43-2 (2000): 97-104.
Zecchin G. “Due rare amanite in Friuli: Amanita friabilis e Amanita lepiotoides.” Boll. Gr. micol. G. Bres. (n.s.) 43-2 (2000): 163-171.
Božac, R. “600 gljiva naših krajeva” Mladost, Zagreb (1984).
Zoltán, L. “Contributions to the macrofungi of Hungary IV.” Mikológiai Közlemények, Clusiana 49(1–2) (2010): 79–119.
Guba E., Siller I., Dima B., Turcsànyi G. “A szalafòi òserdò erdòrezervàtum nagygombài.” Silva naturalis vol. III (2000): 137 .