Basidia and spores of chestnut brittlestem ...

The image is a microscopic view of mushrooms, specifically basidia and spores of Homophron spadiceum (Psathyrella spadicea), collected from the base of a hackberry tree in Lick Creek Park, College Station, Texas.

**Key Features:**

* **Color**: The background appears white or light gray, while the mushrooms are orange-red.
* **Shape and Size:**
   + Basidia: Oval-shaped, elongated structures that resemble tiny ovals. They are approximately 5-7 micrometers in length.
   + Spores: Smaller than the basidia, spherical to ellipsoidal in shape, with smooth surfaces. Their size is about 3-4 micrometers in diameter.

**Other Characteristics:**

* The mushrooms have a reddish-brown color and are densely packed together on the surface of the hackberry tree.
* Some spores appear to be attached to the basidia, while others seem to be floating freely around them.

In summary, the image shows a close-up view of Homophron spadiceum (Psathyrella spadicea) mushrooms collected from a hackberry tree in Lick Creek Park. The mushrooms have distinctive oval-shaped basidia and spherical to ellipsoidal spores. They are densely packed on the surface of the tree, with some spores appearing attached to the basidia and others floating freely around them. – AI vision