Bolbitius titubans

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Bolbitius titubans
Scientific classification
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Bolbitiaceae
Genus: Bolbitius
Species: B. vitellinus
Binomial name
Bolbitius titubans
(Bull.) Fries

Bolbitius titubans, also known as Bolbitius vitellinus, is a widespread species of inedible mushroom found in America and Europe. It grows chiefly on dung or heavily fertilized soil, and sometimes on grass.


The cap is between 1.5–5 cm, and grows from egg-shaped when young to broadly convex, finally ending up nearly flat.[1] The cap's color starts yellow or bright yellow, and fades to whitish or greyish with age.[2] The gills are free from the stem or narrowly attached to it, are fragile and soft, and fade from whitish or pale yellowish to rusty cinnamon with age.[1] The stem is 3–10 cm tall and 2–4 mm wide, is whitish-yellow with a fine mealy powdering, and is very delicate.[3]


  1. ^ a b Kuo, Michael (February 2012). "Bolbitius titubans". Retrieved October 31, 2013.
  2. ^ "California Fungi—Bolbitius titubans". Retrieved October 31, 2013.
  3. ^ "Rogers Mushrooms — Bolbitus vitellinus Mushroom". Archived from the original on December 5, 2008. Retrieved October 31, 2013.