Bolbitius titubans
| Bolbitius titubans | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Fungi |
| Division: | Basidiomycota |
| Class: | Agaricomycetes |
| Order: | Agaricales |
| Family: | Bolbitiaceae |
| Genus: | Bolbitius |
| Species: | B. titubans
|
| Binomial name | |
| Bolbitius titubans (Bull.) Fr.
| |
| Synonyms | |
| Bolbitius titubans | |
|---|---|
| Mycological characteristics | |
| File:Gills icon.png | Gills on hymenium |
| File:Ovate cap icon.svg File:Flat cap icon.svg | Cap is ovate or flat |
| File:Adnate gills icon2.svg File:Free gills icon2.svg | Hymenium is adnate or free |
| File:Bare stipe icon.svg | Stipe is bare |
| Spore print is brown | |
| File:Saprotrophic fungus.svg | Ecology is saprotrophic |
| File:Mycomorphbox Inedible.png | Edibility is edible, but unpalatable |
Bolbitius titubans, also known as Bolbitius vitellinus, and commonly known as the sunny side up,[1][2] is a widespread species of mushroom found in North America. It grows on grass and dung.
Description
[edit | edit source]The mushroom cap is 1.5–7 centimetres (1⁄2–3 in) across,[3] and grows from egg-shaped when young to broadly convex, finally ending up nearly flat.[4] The cap's color starts yellow or bright yellow, and fades to whitish or greyish with age.[5] The stem is 3–12 cm (1–4+1⁄2 in) tall and 2–6 millimetres (1⁄8–1⁄4 in) wide,[3] whitish-yellow with a fine mealy powdering, and very delicate.[6]
The fragile and soft gills are free from the stem or narrowly attached and fade from whitish or pale yellowish to rusty cinnamon with age.[4] They produce a rusty-brown spore print.[7] The spores are brown, elliptical, and smooth.[3]
Similar species
[edit | edit source]Similar species include Bolbitius aleuriatus,[3] B. coprophilus, B. lacteus, and Conocybe apala.[7]
Habitat and distribution
[edit | edit source]The species grows on grass, woodchips, compost, and dung. It is ubiquitous in North America[7] and Europe.
Edibility
[edit | edit source]The mushroom's edibility is unknown.[3] While nonpoisonous,[8] it is too small to be worthwhile.[3]
References
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