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- ›Marasmius siccus
Orange Pinwheel
Marasmius siccus
Marasmius siccus, or orange pinwheel, is a small orange mushroom with a "beach umbrella" cap and a light to dark stem. It is in the Marasmius genus. It is found in hardwood forests from the Rocky Mountains to the Appalachian Mountains. The gills are white. It is 3–7 centimetres (1.2–2.8 in) tall and 0.5–2.5 centimetres (0.20–0.98 in) wide.
From the article Marasmius siccus on Wikipedia (CC BY-SA), quoted section by section
Description
The small orange mushroom has an umbrella-shaped cap which is 0.5–2.5 centimetres (1⁄4–1 in) wide. The gills are whitish. The tough shiny bare stem is pale at the top but reddish brown below, and 3–7 cm (1+1⁄4–2+3⁄4 in) tall.
Microscopic details. At a microscopic level, the club-shaped spores are very long and thin, being roughly 19 μm by 4 μm. The distinctive cheilocystidia are broadly club-shaped with finger-like protrusions at the far end. Such cells also sometimes occur in other related mushrooms and they are known as "broom cells of the siccus type".
Similar species. M. fulvoferrugineus and M. pulcherripes are similar, but the caps are more pink.
Range & habitat
This mushroom is found in hardwood forests. It is distributed in northern Europe and Asia, and in North America from July to September, from the Rocky Mountains to the Appalachians.
Wikipedia: “Habitat and distribution”
At the table
Although nonpoisonous, the mushrooms are too small to be considered worthwhile as food.
== References ==
Wikipedia: “Edibility”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Marasmius siccus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 136398.