Abstract
Pseudotulostoma volvata (O. K. Mill. and T. W. Henkel) is a morphologically unusual member of the otherwise hypogeous Elaphomycetaceae due to its epigeous habit and exposed gleba borne on an elevated stalk at maturity. Field observations in Guyana indicated that P. volvata was restricted to rain forests dominated by ectomycorrhizal (EM) Dicymbe corymbosa (Caesalpiniaceae), suggesting an EM nutritional mode for the fungus. In this paper, we confirm the EM status of P. volvata with a combination of morphological, molecular, and mycosociological data. The EM status for P. volvata corroborates its placement in the ectotrophic Elaphomycetaceae.
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Acknowledgements
This work was made possible by grants to TWH from the Smithsonian Institution’s Biological Diversity of the Guiana Shield Program, the National Geographic Society’s Committee for Research and Exploration, and the A.W. Mellon Foundation, and NSF DEB 0315607 and USDA 2003-01542 to SLM. The authors wish to thank Mimi Chin and Christopher Andrew for expert field assistance in Guyana. The Guyana Environmental Protection Agency and the Ministry for Amerindian Affairs provided research permits. Early observations by Gary Samuels on Pseudotulostoma in Guyana are belatedly acknowledged, as are helpful discussions with Scott Redhead. This is paper number 103 in the Smithsonian Institution’s Biological Diversity of the Guiana Shield Program publication series.
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Henkel, T.W., James, T.Y., Miller, S.L. et al. The mycorrhizal status of Pseudotulostoma volvata (Elaphomycetaceae, Eurotiales, Ascomycota). Mycorrhiza 16, 241–244 (2006). https://doi.org/10.1007/s00572-006-0040-2
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DOI: https://doi.org/10.1007/s00572-006-0040-2