"We were really excited when we saw how similar the ultrastructure of our liverwort rhizoid walls was to images of Prototaxites tubes published in 1976 by Rudy Schmid," Graham said. From Wordnik.com. [PhysOrg.com - latest science and technology news stories] Reference
A, Germinating spores. s, Wall of spore; v, vacuole; w, rhizoid. From Wordnik.com. [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"] Reference
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