family Xylariaceae fa·mi·ly·xylariaceae uncommon noun 1. family of fungi characterized by dark brown to back spores SynonymsXylariaceaefamily Xylariaceae Related words Broader terms fungus family Parts Sphaeriales Part of XylariaRosellinia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
