An annual. Sessile, attached laterally to the substrate, the rudimentary "stem" serves only as a point of attachment and a reference point for the divergence of the gills. The fruiting bodies are initially kidney-shaped, then oyster-shaped, slightly convex, with a slightly folded margin, sometimes uneven and wavy. The density of scales is less toward the margin, and they become increasingly spaced apart. The size is quite modest, 2-5 cm in diameter; in favorable seasons, some larger specimens are observed. The surface is light, gelatinous (especially along the edges), covered with scales. The color of the scales ranges from yellow to fulvous and brown. The scales are arranged quite densely, with a higher concentration near the point of attachment to the substrate. At the point where the cap attaches to the substrate, where the stem is supposed to be, extensive white "tomentose" pubescence can sometimes be seen.
The plates are frequent, narrow, smooth, fused to the point of attachment to the substrate (where the stem is visible), light ochre in color in young mushrooms, and with age they become brownish-brown from maturing spores.
Flesh
Гигрофанная, толстая, эластичная, желтовато-кремовая. Вкус очень слабый, сладковатый.
Odor
Weak, mushroomy, pleasant.
Microscopy
Spores 6-9 x 4.5-6.0 µm, elliptical, smooth; spore print is brownish brown.
The cuticle consists of loose hyphae immersed in a gelatinous substance 6-10 microns wide. On the surface they form a true epicutis and are very pigmented.
Ecology and distribution
It grows on decaying trunks and large fallen trees of deciduous trees, rarely conifers. It is sometimes found on living trees. It causes white rot. It has a substrate preferundum in the form of aspen (Populus tremula).
Similar species
Crepidotus mollis is distinguished by the almost complete absence of scales on the cap.
Crepidotus variabilis is smaller, the gills are more sparse, and the cap surface is not scaly, but tomentose.
Related resources
Zmitrovich I. V., Malysheva V. F., Malysheva E. F., Spirin V. A. Pleurotoid fungi of the Leningrad region. - St. Petersburg: "VIZR", 2004. - 124 p. - P. 7
Thorn, R.G.; et al. (2000). "Phylogenetic analyses and the distribution of nematophagy support monophyletic Pleurotaceae within the polyphyletic pleurotoid-lentinoid fungi". Mycologia, Vol. 92, No. 2: 241–252.
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