Fruiting body puffball-shaped at first, cm wide, the peridium splitting into 5 to 8 rays yielding a final diameter of approximately 5 cm.; rays, thick, fleshy. Geastrum saccatum Fr., Systema Mycologicum 3: 16 () [MB#]. Common Name. Rounded Earthstar. Family. Geastraceae. Notes. Fungus to 5cm across. Wikipedia description:

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Like the interior, the spores are brown and powdery. Retrieved from the MushroomExpert. Usually, the ring is lighter in color than the cone and the sphere. More Spanish version Dr. Several species of Geastrum are very similar, however, so precise identification should rely on the following features: From there, the spores are carried by the wind geaztrum new habitats. Unlike some other members of the genus Geastrum such as Geastrum fornicatum the arms do not push the basidiocarp off the ground; rather, it lies flat.

Common Name

They are sent to a computer by website operators or third parties. It is also attached to its substrate all over the surface before it opens, so the young mushrooms and undersides of the arms of mature mushrooms are usually covered with dirt and other debris.

Although it decomposes plant debris and is often found around stumps, it does not grow directly on coarse woody debris logs and the like. Proceedings of the Iowa Academy of Sciences. This site uses Akismet to reduce spam.


Earthstars — Fungus Fact Friday.

California Fungi: Geastrum saccatum

Characteristics of Division Basidiomycota 7 Jul, Retrieved from ” https: There are a number of North American earthstars that look very similar to G. This mushroom is safcatum for an earthstar, reaching a diameter of only cm roughly in with arms fully open. It is a common mushroom, but collections are at their peak during late summer. Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Like puffballs, spore discharge occurs primarily when raindrops hit the top of the sphere.

Cookies mentioned in the last point are Google analytics cookies that are IP anonymized which means that we cannot trace single users. By using this site, you agree to the Terms of Use and Privacy Policy. Geastrum saccatum Fries 5.

As the mushroom matures, the inside becomes brown and powdery. This website contains no information about the edibility or toxicity of mushrooms. Learn how your comment data is processed. Simple search Basic search Advanced search Search saccaatum specimens Search thesaurus Search bibliography. This mushroom is one of the most common earthstars and can be found all across the globe.

The related species Geastrum fimbriatum does not have an apical disc, and its pores are slightly smaller.

You may be, however, able to change your browser settings to cause your browser to refuse cookies in general, block third party cookies or to indicate when a cookie is being sent. Check Out These Random Posts: Characteristics of Phylum Basidiomycota [Archived] 29 Nov, Look for this mushroom in the summer through the fall.


This is used when first reloading the page. It has a cosmopolitan distributionand is well adapted to tropical regions. Saccatumm parasiticaChestnut Blight. Tissue culture from the white gezstrum of young unexpanded fruitbody.

Geastrum saccatum – Wikipedia

No other cookies than the ones mentioned above are used on our websites. I do not recommend eating this mushroom because it is small and is apparently not culinarily interesting.

The one feature that separates them from other gastroid fungi at this stage is the presence of a small, conical area roughly at the top of the mushroom. Using Google Analytics, we can see what content is ssccatum on our websites. Geasttum mushroom is found in forests throughout the world and is widely distributed and common in North America.

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Pairwise sequence alignments Polyphasic identifications.