Xylaria xylan • Xylariaceae · · · Info · Definitions · Characters · · Xylaria · · Text Latin · · Script 7 · · Length Definitions · · · (noun) type genus of Xylariaceae; fungi with perithecia in the upper part of erect black woody stromata. Synonyms: genus Xylaria. · · Noun Definition 1 Characters · · X latin capital letter x U+0058 a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 y latin small letter y U+0079