 Although it is not known definitively , Chorioactis is believed to be saprobic , deriving nutrients from decomposing organic matter . In Texas , fruit bodies are found growing singly or in groups from roots , stumps , and dead roots of cedar elm trees ( Ulmus crassifolia ) or Symplocos myrtacea ; in Japan , the usual host is dead oak trees . Fruit bodies can be clustered together close to the base of the stump , or from the roots away from the stump ; the stem of the fruit body tends to originate from a point 5 to 10 cm ( 2 to 4 in ) below the ground . In Texas , fruit bodies usually appear between October and April , as this period is associated with somewhat cooler weather , and the temperature and moisture conditions during this time seem to be more favorable for growth . 
