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Rickenella swartzii   (Collared mosscap)
Family
Tricholomataceae
Location
Europe, North America
Dimensions
Cap 0.5-1 cm diameter, stem 2-4 cm tall * 0.1-0.2 cm thick
Edibility
This site contains no information about the edibility or toxicity of mushrooms.

Description
Rickenella swartzii is a tiny agaric that is pale grey to grey-brown. The cap centre (navel) is almost black while it is cream-coloured at the margin. The top of the stem is tinged dark violet. It grows in scattered trooping groups in lawns and other grasslands, typically with moss.

Cap initially convex and then expands to become nearly flat, occasionally having a central depression that gives it an infundibuliform (funnel-like) shape. The cap's margin is usually curved downward and is occasionally wavy. The colour of the cap is dark brown at the centre (disc) and transitions to a pale tan shade towards the margin. The flesh is cream-coloured and very thin. Gills pallid, deeply decurrent, fairly well-spaced, at first whitish, then cream-coloured. Stem rounded and mostly equal in width, with a slight enlargement at the apex. Its surface is similar to the cap, with a powdery texture (pruinose), particularly at the apex. As the mushroom ages, the stem becomes almost smooth (nearly glabrous). The colour of the stem ranges from dark vinaceous-brown to bluish-black at the apex, transitioning to a pale buff-orange shade below. There is no partial veil present. Spore print whitish.

Microscopic Features: The spores are elliptical in face-view, slightly inequilateral in profile, and measure approximately 4.0-5.5 (6) x 2.5-3.5 ┬Ám. They have a smooth surface, thin walls, granular contents, and a well-developed hilar appendage. The spores are inamyloid.

Rickenella swartzii on the mykoweb.com Web site.

Many mushrooms are poisonous and some are lethally poisonous. It can be very difficult to distinguish between an edible and a poisonous mushroom. Because of that, we recommend that you never eat wild mushrooms, and this site does not contain any information about the edibility or toxicity of mushrooms.

Although efforts have been made to ensure accuracy on this website, the information may contain errors and omissions. Therefore, the information presented here is for informational purposes only and should not be relied upon as any basis for consuming any plants or mushrooms.

Links to external websites that provide information about mushrooms are included for reference purposes only. We do not endorse, or assume responsibility for the information, content, or recommendations provided on these external sites.




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