Teacher:In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Teacher: Now, understand the problem? Solve this instance: An epicalyx , an additional whorl around the calyx of a single flower , is a modification of bracteoles .
Student:
An epicalyx , which forms an additional whorl around the calyx of a single flower , is a modification of bracteoles In other words , the epicalyx is a " group of bracts resembling a calyx " or " bracteoles forming a whorl outer to the calyx " .