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Page number:223 
Remarks (internal):Pleurotus eryngii var. elaeoselini is a rare taxon in Europe. In Romania it was found on L. latifolium roots in a meadow in the Stânişoarei Mountains (Eastern Carpathians). This is the first record of this variety for Romania and the Carpathian Mountains. Annual field trips, carried out between 2007 and 2011, confirmed its presence in the same place every year from September to October. Although it was first found in Italy only on E. asclepium subsp. asclepium (Venturella et al. 2000), data from Spain (Venturella 2002) show that this variety is linked to more than one species in the Apiaceae. The Romanian collections of P. eryngii var. elaeoselini on L. latifolium confirm this conclusion.
Zervakis et al. (2001) previously discussed the presence of Pleurotus on Laserpitium spp., noting that Pleurotus strains growing on Laserpitium spp. in central Europe and northern Italy show identical microscopic characteristics with P. eryngii var. elaeoselini and that these differ from P. nebrodensis.
The macroscopic and microscopic attributes of the Romanian specimens fit the description by Venturella et al. (2000). Confusion with P. nebrodensis is excluded, as its host plant, C. ferulacea, is not known in Romania.
The Romanian population of P. eryngii var. elaeoselini apparently fruits only in autumn, during September and October. In Italy, it is reported fruiting in both autumn and spring (Venturella et al. 2000), while in Spain the variety has been found only in spring (Venturella 2002).
 
Description type:Non-original description 
Description:Pleurotus eryngii var. elaeoselini Venturella, Zervakis & La Rocca, Mycotaxon 76: 420 (2000) Fig. 2
Basidiomata fleshy, 40-110 mm high. Pileus 40-120 mm in diameter, hemispherical to convex when young, low convex to depressed when mature; whitish, white-cream to light beige, with alutaceous tones; smooth, often lacerated in small appressed areolae; margin deeply involute in young basidiomata, then straight, sometimes lobate. Lamellae deeply decurrent, arcuate, up to 10 mm broad, in young basidiomata with evident anastomoses on the stipe, whitish to light cream, sometimes grayish-white in young basidiomata, edge entire, concolorous. Spore deposit white.
Stipe 25-85 x 6-20 mm, central to eccentric, concolorous with the pileus, filled and firm, irregularly cylindrical, straight to slightly curved, base attenuate and sometimes radicating, lightly pruinose in the young basidiomata, then smooth, glabrous. Context compact, fibrous, white in pileus and stipe, odor and taste fungoid.
Basidia 4-spored, 34-48 x 8-10 µm, sterigmata 4-5 µm. Basidiospores 8-12(-13) x 4-5.5 µm, cylindrical-ellipsoid, apiculate, smooth, hyaline; cheilocystidia 40-60 x 8-12 µm, club-shaped.
Habitat/substrate/phenology. Mountain meadow (alt. 620-750 m), calcareous soil, on Laserpitium latifolium roots, single or in groups, autumn (September-October).
 
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