Rhynia

fossil plant genus

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In Rhynie plant
Rhynia, one of the most common forms, was about 18 cm (about 7 inches) tall and possessed water-conducting cells called tracheids in its stem, much like those of most living plants. Underground runners connected its aboveground stems; these stems were photosynthetic, branched evenly many times,…
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In plant: Evolution of land plants from the Ordovician Period through the middle Devonian
…plants such as Cooksonia and Rhynia, which were herbaceous colonizers of moist habitats. Most were less than 30 cm (12 inches) tall. The plant body was not differentiated into stems, leaves, and roots; rather, the forking aboveground axes bore terminal sporangia and produced stomata, which demonstrate that the plants were…
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