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Bryolawtonia
''Bryolawtonia'' is a monotypic genus of mosses belonging to the family Neckeraceae. It only contains one known species, ''Bryolawtonia vancouveriensis'' Norris & Enroth, 1990 The species of this genus are found in Northern America. The genus name of ''Bryolawtonia'' is in honour of Elva Lawton (1896-1993), who was an American botanist and bryologist. The genus was circumscribed by Daniel Howard Norris Daniel Howard Norris (1933 – September 30, 2017) was an American botanist dedicated to the study of mosses, and was a renowned expert on the California bryoflora. Career Norris received his B.S. in botany from Michigan State University in 1 ... and Johannes Enroth in Bryologist vol.93 (Issue 3) on page 329 in 1990. References {{Taxonbar, from=Q17317562 Neckeraceae Moss genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neckeraceae
Neckeraceae is a moss family in the order Hypnales. There are about 200 species native to temperate and tropical regions. Most grow on rocks, or other plants. Description Members of the family are usually large and glossy plants with creeping stolons that bear small leaves and tufts of rhizoids. Stems are generally frondose, but may rarely be dendroid. Leaf cell shape is almost always smooth, short, and firm-walled. Marginal cells are typically quadrate to short-rectangular in few to several rows. The sporophyte features are variable between genera. Species are epiphytic, epilithic, or aquatic.Olsson, S, Buchbender, V, Enroth, J, Huttunen, S, Hedenäs, L & Quandt, D 2009, 'Evolution of the Neckeraceae (Bryophyta): resolving the backbone phylogeny', Systematics and Biodiversity, vol 7, no. 4, pp. 419-432. Classification The Neckeraceae were originally placed within the Leucodontales. However, they are now included in the Hypnales. The following genera Genus ( plural gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elva Lawton
Elva Lawton (April 3, 1896 – February 3, 1993) was an American botanist and bryologist known for her research on ferns early in her career and her late-career comprehensive study of the mosses of the Western United States. Early life and education Elva Lawton was born in West Middletown, Pennsylvania on April 3, 1896. Prior to matriculating at university, she was an elementary school teacher in Pennsylvania from 1915 to 1919. She attended the University of Pittsburgh for her bachelor's degree, which she earned in 1923, and her master's degree, which she earned in 1925. From 1923-1925 she was also a high school biology and Latin teacher in Crafton, Pennsylvania. She then moved to the University of Michigan for her doctoral studies and received her Ph.D. in 1932 with a dissertation on induced polyploidy and regeneration in ferns. During her doctoral studies, Lawton earned a fellowship and was a laboratory assistant in the Michigan department of botany; she was also a biolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daniel Howard Norris
Daniel Howard Norris (1933 – September 30, 2017) was an American botanist dedicated to the study of mosses, and was a renowned expert on the California bryoflora. Career Norris received his B.S. in botany from Michigan State University in 1954. In 1964, he obtained his Ph.D. from the University of Tennessee in botany, advised by Jack Sharp. While there, he was a member of Sigma Xi. Norris became a professor of botany at Humboldt State University in 1967. Between 1984 and 1985, Norris was a Fulbright Research Scholar at the University of Helsinki. In 1990, Norris was awarded with an honorary Ph.D. by the University of Helsinki. After his retirement in 1991, he transferred his extensive brylogical collection to the University of California, Berkeley to continue his research. Throughout his lifetime, Norris collected about 116,000 bryophyte specimens. His main areas of focus were in California and Papua New Guinea, however, he made major collections on every continent other t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta ('' sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. Ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botany
Botany, also called plant science (or plant sciences), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word (') meaning " pasture", "herbs" " grass", or "fodder"; is in turn derived from (), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes. Botany originated in prehistory as herbalism with the efforts of early humans to identify – a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryology
Bryology (from Greek , a moss, a liverwort) is the branch of botany concerned with the scientific study of bryophytes (mosses, liverworts, and hornworts). Bryologists are people who have an active interest in observing, recording, classifying or researching bryophytes. The field is often studied along with lichenology due to the similar appearance and ecological niche of the two organisms, even though bryophytes and lichens are not classified in the same kingdom. History Bryophytes were first studied in detail in the 18th century. The German botanist Johann Jacob Dillenius (1687–1747) was a professor at Oxford and in 1717 produced the work "Reproduction of the ferns and mosses." The beginning of bryology really belongs to the work of Johannes Hedwig, who clarified the reproductive system of mosses (1792, ''Fundamentum historiae naturalist muscorum'') and arranged a taxonomy. Research Areas of research include bryophyte taxonomy, bryophytes as bioindicators, DNA s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Enroth
Johannes is a Medieval Latin form of the personal name that usually appears as "John" in English language contexts. It is a variant of the Greek and Classical Latin variants (Ιωάννης, ''Ioannes''), itself derived from the Hebrew name '' Yehochanan'', meaning "Yahweh is gracious". The name became popular in Northern Europe, especially in Germany because of Christianity. Common German variants for Johannes are ''Johann'', ''Hannes'', ''Hans'' (diminutized to ''Hänschen'' or ''Hänsel'', as known from "''Hansel and Gretel''", a fairy tale by the Grimm brothers), ''Jens'' (from Danish) and ''Jan'' (from Dutch, and found in many countries). In the Netherlands, Johannes was without interruption the most common masculine birth name until 1989. The English equivalent for Johannes is John. In other languages *Joan, Jan, Gjon, Gjin and Gjovalin in Albanian *'' Yoe'' or '' Yohe'', uncommon American form''Dictionary of American Family Names'', Oxford University Press, 2013. *Yaḥyā ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
