Observation 203628: Geastrum hieronymi Henn.

Numerous specimens on ground under juniper and oak at about 4500’ elevation. Spore sac up to 3 cm with a very scaly surface—small dark scales under the hand lens. Mouth is plicate/sulcate I think. Mycelial layer is encrusted with debris, 9-10 rays. Inner layer is tawny then brown. Short stem is firmly attached. I wish I had seen these a week or so ago—my second Geastrum and both are pretty old!

Species Lists

External Links



Proposed Names

-29% (1)
Recognized by sight: Geaster campestris Morgan: Morgan, A.P. 1887. The genus Geaster. American Naturalist 21: 1027-1028. "The peculiar feature of this species, however, is the minute, scaly or granulose warts which invest the surface of the inner peridium; there is no other species with a similar surface, unless it be the G. granulosus Fuckel, which is described as “covered with a white granulose powder.”
Used references: http://mycoportal.org/..., Arizona (macrofungi)
50% (2)
Eye3 Eyes3
Recognized by sight

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus


Add Comment
Thanks John
By: Terri Clements/Donna Fulton (pinonbistro)
2015-05-01 11:40:28 EDT (-0400)

This looks promising to me: " endoperidium 2-3 cm. wide, subglobose,
short pedicellate, the stalk flattened with a prominent apophysis,
dark brown, harshly asperate with acute or subpyramidal spicules;
mouth indeterminate, slightly elevated, fibrous, fimbriate or toothed.." from MO name description page. See also: http://mycoportal.org/..., Arizona (macrofungi) I’ve uploaded a better photo of the stem.


Created: 2015-04-30 20:18:15 EDT (-0400)
Last modified: 2017-10-29 17:26:45 EDT (-0400)
Viewed: 110 times, last viewed: 2018-04-01 00:46:03 EDT (-0400)
Show Log