Artificial intelligent assistant

Are bryophyte sporangia multicellular? My research on the matter can be summarized in a sentence: "It [sporangium] can be composed of a single cell or can be multicellular" (Source: < Yet there shouldn't be a reply placed between "They are" and "They aren't" test options, speaking of "Are bryophyte sporangia multicellular?". A link to the source where I could ascertain whether the bryophyte sporangia is multicellular (if I could ascertain) is highly appreciated.

In Embryophyta (land plants), including bryophytes, the sporangium is usually a multicellular structure.

![Life cycle of a hornwort. The dehisced sporangium is shown releasing spores and elaters.](

Perhaps you meant to ask about the number of _spore mother cells_ (SMCs) in each sporangium? That varies across groups. In bryophytes, each sporangium has many SMCs, and accordingly produces a large number of spores. (Contrast this with angiosperms, where a megasporangium [called an ovule] has only one megaspore mother cell.)

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**References and further reading:**

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**Image attribution:**

By LadyofHats. (Public domain; <

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