R. S. Currah and C. Zelmer, “A Key and Notes for the Genera of Fungi Mycorrhizal with Orchids and a New Species in the Genus Epulorhiza,” Reports of Tottori Mycological Institute, Vol. 30, 1992, pp. 43-59.
 M. Hamada, “Studien über die Mykorrhiza von Galeola Septentrionalis Reichb. F—Ein neuer Fall der Mykorrhiza-Bildung Durch Intraradicale Rhizomorpha,” Japanese Journal of Botany, Vol. 10, 1939, pp. 151-211.
 T. J. White, T. Bruns, S. Lee and J. W. Taylor, “Amplification and Direct Sequencing of Fungal Ribosomal RNA genes for Phylogenetics,” In: M. A. Innis, D. H. Gelfand, J. J. Sninsky and T. J. White, Eds., PCR Protocols: A Guide to Methods and Applications, Academic Press, Inc., New York, 1990, pp. 315-322.
 T. Ishii, T. Ikeda, K. L. Rutto, A. F. Cruz, I. Matsumoto and K. Kadoya, “Proteins Related to the Mechanism of Symbiosis between Vesicular-Arbuscular Mycorrhizal Fungi and Plants,” Journal of the Japanese Society for Horticultural Science, Vol. 68, No. 2, 1999, p. 229.
 J. M. Phillips and D. S. Hayman, “Improved Procedures for Clearing and Staining Parasitic and Vesicular-Arbuscular Mycorrhizal Fungi for Rapid Assessment of Infection,” Transactions of the British Mycological Society, Vol. 55, No. 1, 1970, pp. 158-161. Hdoi:10.1016/S0007-1536(70)80110-3
 Y. Uetake, A. Ogoshi and S. Hayakawa, “Observation of Teleomorphs of Rhizoctonias (Thanatephorus orchidicola and Tulasnella deliquescens) Isolated from Orchids,” Memoirs of the Faculty of Agriculture, Vol. 22, No. 2, 1999, pp. 121-125.
 V. Vujanovic, M. St-Arnaud, D. Barabé and G. Thibeault, “Viability Testing of Orchid Seed and the Promotion of Colouration and Germination,” Annals of Botany, Vol. 86, No. 1, 2000, pp.79-86. Hdoi:10.1006/anbo.2000.1162
 J. M. U’Ren, J. W. Dalling, R. E. Gallery, D. R. Maddison, E. C. Davis, C. M. Gibson and A. E. Arnold, “Diversity and Evolutionary Origins of Fungi Associated with Seeds of a Neotropical Pioneer Tree: A Case Study for Analysing Fungal Environmental Samples,” Mycological Research, Vol. 113, No. 4, 2009, pp. 432-449.