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Physematium Oreganum
''Physematium oreganum'', the Oregon cliff fern, is a perennial fern in the family Woodsiaceae. This plant is native to a large part of the western and northern United States and Canada. References External linksJepson Manual Treatment oreganum [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vittore Benedetto Antonio Trevisan De Saint-Léon
Vittore Benedetto Antonio Trevisan de Saint-Léon (5 June 1818, in Padua – 8 April 1897, in Milan) was an Italian botanist who specialized in cryptogamic flora. During his career, he was a professor of natural history in Padua. In 1882 he was named president of the ''Accademia fisio-medica-statistica'' in Milan. In 1848 he circumscribed the genus '' Romanoa'' (family Euphorbiaceae) and in 1861 named the genus ''Speerschneidera'' (family Bacidiaceae). In 1888, he circumscribed the (Algae) genus ''Nocardia'' (family Nocardiaceae) that is now classed as a bacteria. Also, he is also the taxonomic authority of the fern genera ''Blechnopteris'' (synonym of '' Blechnum'' L.), ''Neurosorus'' (synonym of ''Coniogramme ''Coniogramme'' is one of three genera in the subfamily Cryptogrammoideae of the fern family Pteridaceae. A cultivated species, '' Coniogramme pilosa'', is known as "bamboo fern." Species *'' Coniogramme affinis'' ( C. Presl) Wall. ex Hieron ...'' Fée,)a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodsiaceae
''Woodsia'' is a genus of ferns in the order Polypodiales. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), it is the only genus in the family Woodsiaceae, placed in the suborder Aspleniineae. The family can also be treated as the subfamily Woodsioideae of a very broadly defined family Aspleniaceae ''Sensu, sensu lato''. Species of ''Woodsia'' are commonly known as cliff ferns. Taxonomy Woodsiaceae formerly included the members of the families Athyriaceae and Diplaziopsidaceae, but analysis has consistently shown that they should be treated as separate families. The following cladogram for the suborder Aspleniineae (as eupolypods II), based on Lehtonen (2011), and Rothfels & al. (2012), shows a likely phylogenetics, phylogenetic relationship between the Woodsiaceae and the other families of the Aspleniineae. Species There are about 40–50 species of the genus ''Woodsia''. , ''Plants of the World Online'' accepted the following species: *''Woodsia alpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total area. Its southern and western border with the United States, stretching , is the world's longest binational land border. Canada's capital is Ottawa, and its three largest metropolitan areas are Toronto, Montreal, and Vancouver. Indigenous peoples have continuously inhabited what is now Canada for thousands of years. Beginning in the 16th century, British and French expeditions explored and later settled along the Atlantic coast. As a consequence of various armed conflicts, France ceded nearly all of its colonies in North America in 1763. In 1867, with the union of three British North American colonies through Confederation, Canada was formed as a federal dominion of four provinces. This began an accretion of provinces an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physematium
''Physematium'' is a genus of ferns in the family Woodsiaceae. It was treated as a synonym of '' Woodsia'' until 2020 when a molecular phylogenetic study showed its distinctiveness. , Plants of the World Online continued to treat the genus as a synonym of ''Woodsia''. Species , World Ferns accepted 20 species and two hybrids: *''Physematium fragile'' (Trevis.) Kunze *'' Physematium indusiosum'' (Christ) Li Bing Zhang, N.T.Lu & X.F.Gao *''Physematium kangdingense'' (H.S.Kung, Li Bing Zhang & X.S.Guo) Li Bing Zhang, N.T.Lu & X.F.Gao * ''Physematium'' × ''kansanum'' (R.E.Brooks) Li Bing Zhang, N.T.Lu & X.F.Gao *''Physematium manchuriense'' (Hook.) Nakai * ''Physematium'' × ''maxonii'' (R.M.Tryon) Li Bing Zhang, N.T.Lu & X.F.Gao *''Physematium mexicanum'' (Fée) comb.ined. *''Physematium molle'' Kaulf. *''Physematium montevidense'' (Spreng.) Shmakov *''Physematium neomexicanum'' (Windham) Li Bing Zhang, N.T.Lu & X.F.Gao *'' Physematium obtusum'' (Spreng.) Hook. *''Physematium orega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferns Of The United States
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate ( Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of The Western United States
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
