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Blasia pusilla with gemmae

This specimen of Blasia pusilla is alive with interesting structures. Globular yellow masses of gemmae are borne on elongate stem-like podia, and dark rounded lumps on the thallus are colonies of the cyanobacterium, Nostoc.


On removing this liverwort from the container I'd kept it in, a few days after taking the above photo, the plant had continued to mature. Most of the gelatinous spheres of gemmae had collapsed, the separate gemmae now forming a trail down the stalks that bore them and becoming distributed over the thallus.

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Taken on October 13, 2011