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Arthromeris Mairei
''Arthromeris mairei'' is a fern species in the genus '' Arthromeris''. Two afzelechin Afzelechin is a flavan-3-ol, a type of flavonoid. It can be found in ''Bergenia ligulata'' ( ''Paashaanbhed'' in Ayurveda traditional Indian medicine). It exists as at least 2 major epimers (afzelechin and epi-afzelechin). Metabolism (2R,3S)-cate ... glycosides, arthromerin A ( afzelechin-3-O-β-D-xylopyranoside) and arthromerin B ( afzelechin-3-O-β-D-glucopyranoside), can be isolated from the roots of ''A. mairei''.Two afzelechin glycosides from Arthromeris mairei. Yu Wen-Sheng, Li Hong, Chen Xin-Min and Yang Lei, Phytochemistry, December 1992, Volume 31, Issue 12, pages 4385–4386, , References External links Polypodiaceae {{Polypodiaceae-stub ...
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Guido Georg Wilhelm Brause
Guido Georg Wilhelm Brause (7 August 1847, in Kochanowitz – 17 December 1922) was a German botanist, specializing in ferns. Brause studied at Koszęcin, in Poland. Along with his botanical career he continued throughout his life a military career, first in the artillery during the Franco-Prussian War of 1870, then as an officer in Charlottenburg, with an expedition to Central Africa in 1907–1908. In retirement, he was associated with the botanical garden and museum in Berlin as well as the ''Botanischer Verein der Provinz Brandenburg'' (Botanical Association of Brandenburg Province). Selected works * ''Beiträge zur Kenntnis der Gesteine des Fränkischen Jura'', (1910). * ''Die Farnpflanzen (Pteridophyta)'', (treatise on ferns; Pteridophyta), (1914) part of series "Kryptogamenflora für Anfänger : Eine Einführung in das Studium der blütenlosen Gewächse für Studierende und Liebhaber"; edited by Gustav Lindau, continued by Robert Knud Friedrich Pilger Robert Knud Fr ...
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Ren-Chang Ching
Ren-Chang Ching (; 15 February 1898 – 22 July 1986), courtesy name Zinong, was a Chinese botanist who specialised in ferns. Life and work Ren-Chang Ching was a Chinese botanist and pteridologist who made significant collections of plants from Mongolia to Yunnan. He was born in Wujin, Jiangsu, and studied botany and forestry at the University of Nanjing. On graduating in 1925 he taught at Southeastern University and from 1927 was Head of the Botany Section, Nanjing Museum. Here he switched his focus from trees to pteridophytes, which thereafter became his speciality. At this time, there were no experts on Chinese ferns in China and no single fern specimen was correctly identified in the small herbarium just started in Beijing. Ching started to correspond with pteridologists in the West (H. Christ, C. Christensen, W.R. Maxon and E.B. Copeland), thereby creating a basic library on Asiatic ferns for reference. In addition he started to make extensive collections of ferns, parti ...
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Arthromeris
''Arthromeris'' is a genus of ferns in the family Polypodiaceae, subfamily Drynarioideae, according to the Pteridophyte Phylogeny Group The Pteridophyte Phylogeny Group, or PPG, is an informal international group of systematic botanists who collaborate to establish a consensus on the classification of pteridophytes (lycophytes and ferns) that reflects knowledge about plant relation ... classification of 2016 (PPG I). References External links eflora.org Polypodiaceae Fern genera {{Polypodiaceae-stub ...
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Afzelechin
Afzelechin is a flavan-3-ol, a type of flavonoid. It can be found in ''Bergenia ligulata'' ( ''Paashaanbhed'' in Ayurveda traditional Indian medicine). It exists as at least 2 major epimers (afzelechin and epi-afzelechin). Metabolism (2R,3S)-catechin:NADP+ 4-oxidoreductase transforms cis-3,4-leucopelargonidin into afzelechin. Glycosides Arthromerin A ( afzelechin-3-O-β-D-xylopyranoside) and arthromerin B ( afzelechin-3-O-β-D-glucopyranoside) are afzelechin glycosides isolated from the roots of the fern '' Arthromeris mairei''. (+)-afzelechin-O-β-4'-D-glucopyranoside can be isolated from the rhizomes of the fern '' Selliguea feei''. Proanthocyanidins ; dimers Afzelechin-(4alpha→8)-afzelechin (molecular formula : C30H26O10, molar mass : 546.52 g/mol, exact mass : 546.152597, CAS number : 101339-37-1, Pubchem CID : 12395) is a B type proanthocyanidin. Ent-epiafzelechin-3-O-p-hydroxybenzoate-(4α→8,2α→O→7)-epiafzelechin) is an A-type proanthocyanidin found in apri ...
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