Wednesday, July 19, 2023

Sort of starry

 Life is stubborn. These mushrooms are growing in a narrow crack in cement steps; the home owner says they come back every year.

Scleroderma sp.

AKA Earthstars

Each one is split across the top, exposing the mushroom flesh beneath; the spores will be released from this tissue. I recognized them as earthstars; a lifer for me. For a size comparison, the little flower heads are lavender, about 5 mm. long.

I sent the photos in to the Mushroom Identification Group, and there, they identified them as Scleroderma sp., which in my mushroom book translates to Earthstars, but without narrowing them down to species.

So I've posted them to iNaturalist; there, the Genus is labelled Earthballs. But so far, there's no closer identification.

They are related to the puffballs, but the central spore case is enclosed in a tough outer skin that splits open; some earthstars split into rays, from where they get the starry name. Others, like these, split irregularly.

None of the Scleroderma are edible; some are very poisonous.

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Sea como sea, la vida encuentra maneras de surgir. Estos honguitos crecen en una grieta angosta entre escalones de cemento. El dueño de la casa dice que regresan cada año.

Fotos: Scleroderma sp., conocidos como bolas o estrellas de tierra. Las florecitas secas son de lavandula, y miden unos 5mm. de largo.

Cada hongo está partida, dejando la pulpa del centro a la vista. De allí se esparcirán las esporas. Yo los reconocí como estrellas de tierra, y es la primera vez que veo estos. Envié las fotos al grupo de identificación de hongos, y allí me los identificaron como hongos del género Scleroderma. Mi libro guía los llama Estrellas de Tierra, el nombre que yo conocía. Pero no pudieron identificar la especie.

Subí las fotos a iNaturalist, y allí les dieron el nombre de Bolas de tierra. Pero tampoco han especificado la especie.

Estos hongos son del grupo de los bejines, pero el saco donde se forman las esporas está envuelto en una piel exterior que se rompe al madurar el hongo. Algunos se dividen en rayos regulares, de donde sacan el nombre de estrellas. Otros, como estos, se dividen en forma irregular.

Ninguno de los Scleroderma es comestible; algunos son muy tóxicos.









2 comments:

  1. I'm curious what kind of organic material is under those steps that supports this unusual fungus.

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    Replies
    1. Interesting question. I've found mushrooms in the lawn and under an arbutus nearby, but never these. Otherwise, it's just a normal residential area; once hillside covered with evergreens and ferns, now "tamed". I will suggest a new search around the arbutus roots.

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