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___________ is a structure that contains spores and is located on the underside of fern leaves. Basidium Bacillus Cilium Sorus



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lrathburn
Sorus is a structure that contains spores and is located on the underside of fern leaves. Sorus is a cluster of sporania. In fungi and lichens, the sorus is surrounded by an external layer. Sorus can be also called a fruit dot.