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Cheilanthes Covillei
''Myriopteris covillei'', formerly known as ''Cheilanthes covillei'', is a species of cheilanthoid fern known by the common name Coville's lip fern. Coville's lip fern is native to the southwestern United States and Mexico. Description Leaf bases are closely spaced along the rhizome, which is typically in diameter. It is covered with persistent scales about long, which are Glossary of leaf morphology#linear, linear to narrowly Glossary of leaf morphology#lanceolate, lanceolate, straight or slightly twisted, and tightly Glossary of botanical terms#appressed, appressed (pressed against the surface of the rhizome). They are a uniform dark brown to black in color, or in some cases have paler, narrow margins of a light brown color, and lack marginal teeth. The fronds spring up in clusters; they do not unfold as fiddleheads like typical ferns (noncircinate vernation). When mature, they are long. The stipe (botany), stipe (the stalk of the leaf below the blade) is long and less tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Ralph Maxon
William Ralph Maxon, (February 27, 1877February 25, 1948) was an American botanist and pteridologist. He graduated from Syracuse University with a Bachelor of Philosophy, B.Ph. in biology, in 1898, and spent about one year at Columbia University doing post-graduate work on ferns with Lucien Marcus Underwood. In 1899 he accepted a position with the National Museum of Natural History, United States National Museum, which was a part of the Smithsonian Institution; he remained at the museum for his entire career. In 1899 he became an aide with the Division of Plants. He was named assistant curator in 1905, associate curator in 1914, and curator of that Division in 1937. He retired in 1946, but continued his association with the museum until his death in 1948. For the current version of this webpage, see . The later version does not indicate authorship. Alan Bain has written that, "Maxon specialized in the taxonomic study of Pteridophyta, especially those of tropical America, and was con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
