 Collybia cirrhata is most likely to be confused with the remaining members of Collybia , which have a similar external appearance . C. tuberosa is distinguished by its dark reddish @-@ brown sclerotia that resemble apple seeds , while C. cookei has wrinkled , often irregularly shaped sclerotia that are pale yellow to orange . Other similar mushrooms include Baeospora myosura and species of Strobilurus , but these species only grow on pine cones . 
