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Slime mold

Stemonitis axifera

Description:

Stemonitis axifera is a species of slime mold found around the world. It fruits in clusters on dead wood, and has distinctive tall reddish-brown sporangia, supported on slender stalks. The erect, stalked cylindrical sporangia are arranged into bundles or clusters that are 7–15 mm (0.3–0.6 in) tall. Each sporangium is supported by a thin, shining, black stalk that is 3–7 mm (0.1–0.3 in) long. The bright rusty brown color of mature sporangia lightens to a pale brown after the spores have been dispersed. Spores measure 5 by 7 μm and have a smooth to minutely punctate surface texture.

Habitat:

In a wood pillar, in a house in the outskirts of a small rural town.

Notes:

The species was first described as Trichia axifera by Jean Baptiste François Pierre Bulliard in 1791. Thomas Huston MacBride transferred it to the genus Stemonitis in 1889. Stemonitis fasciculata and Stemonitis smithii are synonyms.

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4 Comments

Ingrid3
Ingrid3 a month ago

Slimemolds are so diverse - a miniature world of bizarre and cool!

Sergio Monteiro
Sergio Monteiro a month ago

Ava T-B and Neil Ross: Thank you.

Neil Ross
Neil Ross a month ago

It's a weird-looking thing. Excellent spotting, Sergio!

Ava T-B
Ava T-B a month ago

What a fantastical organism!!

Sergio Monteiro
Spotted by
Sergio Monteiro

Santa Catarina, Brazil

Spotted on Feb 24, 2021
Submitted on Feb 24, 2021

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