Fairy rings are conspicuous features of the Laramie Basin of southeastern Wyoming. Ten fairy ring sites chosen for intensive study were located using a small plane and 415 whole and partial fairy rings were georeferenced and ground-truthed. Fairy ring forming fungi were identified using a combination of taxonomy and ITS fungal barcode sequence comparisons. Precipitation, vegetation, soil type, elevation, slope, and slope aspect were queried using GIS. Eight fairy ring forming species were identified from the sites, including three unknown species, and two taxa not previously reported to form fairy rings. Most fairy rings occurred in drier mixed-grass prairie vegetation, whereas a small percentage occurred in mesic shrub dominated riparian vegetation. Most fungal species exhibited preferences for elevation and slope aspect, and rings were scarce on east facing slopes. The identity and autecology of individual fairy ring fungi and importance of environmental variables to fairy ring biology is discussed.

仙女环是怀俄明州东南部拉勒米盆地的明显特征。使用小型飞机定位了十个要进行深入研究的仙女环位置，并对415个整个和部分仙女环进行了地理定位和地面修整。使用分类法和ITS真菌条形码序列比较的组合来鉴定形成仙女环的真菌。使用GIS查询降水，植被，土壤类型，海拔，坡度和坡度方面。从这些地点鉴定出八种形成仙女环的物种，包括三个未知物种，以及两个先前未报道形成仙女环的分类单元。大多数仙女环发生在较干燥的混合草草原植被中，而一小部分发生在以灌木为主的河岸植被中。大多数真菌物种表现出对海拔和坡度的偏爱，朝东的山坡上没有戒指。讨论了单个仙女环真菌的身份和自律以及环境变量对仙女环生物学的重要性。