Which structures and/or processes allow(s) a lichen to disperse to a new location?

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Lichens can disperse to a new location via two methods: soredia and fragmentation of the thallus. Soredia are small clusters of fungal hyphae and algal cells that are dispersed by wind, rain, or animal activity. Fragmentation of the thallus occurs when a piece of the lichen breaks off and is carried by wind, water, or animals to a new location. Both of these mechanisms are used by lichens to colonize new habitats.

Which Structures And/or Processes Allow(s) a Lichen to Disperse to a New