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Osmunda Bromeliifolia
''Plenasium banksiifolium'' is a fern in the Family (biology), family Osmundaceae. The genus ''Plenasium'' is recognized in the Pteridophyte Phylogeny Group classification of 2016 (PPG I); however, some sources place all ''Plenasium'' species in a more broadly defined ''Osmunda'', treating this species as ''Osmunda banksiifolia''. It is native along the Pacific coast of Asia, being found in the Kamchatka Peninsula, the Ryukyu Islands, Japan, southeast China, Taiwan, the Philippines, Borneo, Sulawesi and Java. ''P. banksiifolium'', which can reach a height of 1.5 m, is the largest species in the genus and has ornamental value. Description The appearance of the fertile pinnae are very different from that of the sterile pinnae, the fertile pinnae are curled. The sporangia can also grow on the vegetative pinnae immediately above and below the fertile pinnae, with a compact shape; so we might say that P. banksiifolium has three types of pinnae: fertile, sterile, and semi-ferti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |