RESUMO
Objective: To confirm the influential factors on mycelial growth of Omphalia lapidescens and to provide a basis for the artificial cultivation. Methods: The mycelial growth rates of O. lapidescens under different culture conditions were measured. Results: With the temperature of 25 ℃ and pH 6.0-7.0, the mycelium of O. lapidescens was in its rapid growth. And there was no significant difference in mycelial growth rate with the concentration of carbon sources between 1% and 3%. Nitrogen sources such as peptone and yeast powder inhibited the mycelial growth, while the corn flour was not inhibited. The more suitable ingredient for the cultivation of O. lapidescens was bamboo leaves, meanwhile the growth-promoting effect of corn flour was obvious. Conclusion: The effects of temperature, nitrogen source, and matrix on mycelial growth of O. lapidescens are significant.