Assertion: gametophyte's sporophyte | /r/HasProperty | aglaophyton
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text: These spore aggregates (Fig. 2P ) are known at least for the Rhynie chert sporophytes Aglaophyton and Horneophyton, and we suggest that they may represent a dispersal strategy that resulted in maintaining the close proximity of both types of unisexual gametophytes, thus ensuring fertilization.