lyginopteris การใช้

Some " Lyginopteris " were parasitized by water molds.
""'Lyginopteris " "'is a genus of Late Carboniferous seed fern stems with a very distinctive outer cortex of sclereids forming a pattern in cross section like Roman numerals on a clock face, often called a " Sparganium " cortex.
The concept of pteridosperms goes back to the late 19th century when Frank Oliver and Dukinfield Henry Scott ( with the assistance of Oliver's student at the time, Marie Stopes ) made the critical discovery that some of these fronds ( genus " Lyginopteris " ) were associated with seeds ( genus " Lagenostoma " ) that had identical and very distinctive glandular hairs, and concluded that both fronds and seeds belonged to the same plant.