Appearance
Fruitbodies have yellow-olivaceous or olive-tan caps that measure 2.5–7 cm in diameter. There are grooves on the cap margin that extend about 40% of the distance from the margin to the apex. The spores are spherical or nearly so, typically measuring 9.1–12.2 by 8.4–11.5 µm. The white stipe is ornamented with slightly darker fibrils, and there are sac-like remnants of the volva at the stipe base.Naming
The specific epithet ''sinicoflava'' means "Chinese-yellow", referring to the cap color. Its English name is Mandarin yellow ringless Amanita.Distribution
Found in North America, the fungus was described as new to science in 1998 by mycologist Rodham Tulloss. The type collections were made in Sussex County, New Jersey.Habitat
The mushroom grows in sandy soil under ''Quercus'', ''Pinus rigida'', ''Acer rubrum'', ''Quercus alba'', and ''Quercus velutina''.References:
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