Fragments of the thallus containing both phycobiont and mycobiont cells may also grow into new lichens, a from of asexua地衣的碎裂片中，如含有藻类和真菌共生时，也可长成独立植株，这是一种无性的生殖形式。
Relation between Photosynthesis Velocity of Peltigera canina(L.)Willd.Thallus and Temperature and Humidity犬地卷[Peltigera canina(L.)Willd.]叶状体的光合速率与温度和湿度的关系