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An eastern North American - eastern Asian disjunct bolete |
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| This distinctive fungus is characterized by its medium to large sized basidiomata, red to reddish yellow pileus covered with coarse fibrous scales, angular, yellow pores, white to pinkish fibrous veils leaving a ring on stipe, olive-brown spore prints, and smooth, ellipsoid basidiospores. |
| The fungus is an ectomycorrhizal species associated with 5-needle pines. In eastern North America, it is commonly found under eastern white pine (Pinus strobus). In Mexico, it is associated with P. ayacahuite. In China, S. spraguei is found under P. armandii in the south and P.koraiensis in the north. |
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| Recorded distribution of Suillus spraguei includes Canada (Nova Scotia), USA (Georgia, Illinois, Iowa, Maine, Maryland, Michigan, New Hampshire, New York, North Carolina, Pennsylvania, Tennessee, and Vermont), Mexico (Coahuila and Durango), China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Heilongjiang, Jiangsu, Jilin, Xizang, Yunnan, Zhejiang), and Japan (Shiga). |
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Specimens collected from various localities exhibit very little morphological difference, e.g., the basidiospore measurements of the Asian collections are within the ranges of those of North American collections. We are conducting DNA sequencing analyses to test the genetic relatedness among the geographically isolated populations of Suillus spraguei. |
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Lactarius indigo Suillus spraguei |
