粉芽

粉芽（soredium，复数为soredia）是地衣常见的一种无性生殖构造[1]，为外观呈粉状的繁殖体，由地衣中真菌的菌丝包裹共生的绿藻或蓝绿菌而形成。粉芽可能散布于地衣的表面，也可能集中于一个区域，形成粉芽堆（soralia）[2]。粉芽可以风力等方式散播到别处，以产生新的地衣[3]。

橡苔的粉芽

参考数据
  1. Eichorn, Susan E; Evert, Ray F; Raven, Peter H. . New York: W.H. Freeman and Company. 2005: 289.
  2. Brodo, Irwin W.; Sharnoff, Sylvia Duran; Sharnoff, Stephen. . New Haven, CT, USA: Yale University Press. 2001: 762. ISBN 0-300-08249-5.
  3. Cook, Rebecca; McFarland, Kenneth. . Knoxville: University of Tennessee. 1995: 104.
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