壳顶（英语：Umbo）在真菌学上指的是蕈伞中央突起的部分，拥有壳顶的蕈伞称为umbonate。壳顶明显突出的蕈伞被称为是“尖锐”（acute）的，较呈圆形的则称为“宽广”（broadly）的。壳顶被伸长者称为cuspidate，突出但没有延长，状似女性乳房者则称为mammilate或papillate[1]。
参考资料
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