The provided image shows spores of the mushroom species **Agrocybe retigera**, commonly known as "fieldcap mushrooms," under a microscope using the chemical solution **KOH (potassium hydroxide)**.
**Spore Description:**
* The spores are oval-shaped.
* They have a smooth, uniform texture and lack any visible ornamentation or features.
* Their color is golden yellow.
* Each spore measures approximately 3.5 to 4 micrometers in width and 6 to 7 micrometers in length.
**Background:**
* The background of the image is white, indicating that it was photographed under a microscope using a slide with a white background.
* There are no other objects visible in the image besides the spores.
**Image Quality:**
* The image is of high quality and appears to be well-focused, allowing for clear observation of the spore's details. – AI vision