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Mushroom Monday: Garland Stropharia (Stropharia coronilla)
In grassy areas and gardens, you might spot small, light-colored mushrooms emerging from the soil. These could be Stropharia coronilla, commonly known as the Garland Stropharia, a ground-dwelling fungus that contributes to nutrient cycling in managed landscapes.
Physical Characteristics
The caps of Stropharia coronilla measure 2-5 centimeters (approximately 0.8-2 inches) across. Young specimens show a convex shape that gradually flattens with age. Their color ranges from cream to light brown, often lighter around the edges. The surface appears smooth and becomes viscid when wet. Underneath, the gills begin with a gray coloration and develop into purple-brown as they mature. The spore print is purple-brown.
The stem reaches 2-5 centimeters (0.8-2 inches) in height and features a distinctive membranous, persistent ring. The stem itself is whitish, sometimes developing brownish tones with age.
Growth Patterns
These mushrooms appear scattered or in groups, growing directly from soil rich in organic matter. They frequently emerge in maintained grassy environments, showing a particular association with human-modified landscapes.
Ecological Role
Stropharia coronilla functions as a decomposer in grass-dominated environments. These fungi break down dead organic material in the soil, participating in the essential process of nutrient recycling. Their presence often indicates active decomposition occurring in the root zone of grassy areas, particularly in lawns and gardens where grass clippings and organic matter accumulate.
Habitat and Distribution
In North America, these fungi thrive in human-maintained environments such as lawns, gardens, and parks. While documented in various regions including the Pacific Northwest and California, they show a preference for areas where grass is regularly maintained.
Seasonal Patterns
Though these mushrooms can emerge throughout the year, they’re most active during periods of adequate moisture. Their appearance often follows rain events, with fruiting bodies pushing up through the grass in response to favorable conditions.
If you notice mushrooms growing in your lawn or garden, contact ArborTrue’s arborists at (832) 980-8733. We can help you understand the role of fungi in your landscape’s ecosystem and assess your soil’s health.
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ArborTrue is a science-based tree service company in the greater Houston area. We also serve Austin and other parts of Central Texas. We provide a range of services including tree trimming, tree pruning, tree removal, tree planting, arborist consultations, and more. Call us today at 832-980-8733 (Houston) or at 512-546-3833 (Austin) or reach out to us online to schedule an appointment.
