{{short description|Dutch botanist}} {{Infobox scientist | name = Sijfert Hendrik Koorders| image = | image_size = | alt = | caption = | birth_date = {{Birth date|1863|11|29|df=y}} | birth_place = Bandung, Indonesia| death_date ={{death date and age|1919|11|16|1863|11|29|df=y}} | death_place =Jakarta, Indonesia (then called Batavia, Dutch East Indies)| residence = | citizenship = | nationality = | fields =Botany |workplaces= |alma_mater= | doctoral_advisor = | academic_advisors = | doctoral_students = | notable_students = | known_for = | author_abbrev_bot = Koord.| author_abbrev_zoo = | influences = | influenced = | awards = | signature = | signature_alt = | footnotes = | spouse = Anna Koorders-Schumacher }}

'''Sijfert Hendrik Koorders''' (1863 – 1919) was a Dutch botanist,<ref>{{cite web |url= https://kiki.huh.harvard.edu/databases/botanist_search.php?mode=details&id=2305 |title=Index of Botanists: Koorders, Sijfert Hendrik|author=<!--Not stated--> |date=n.d. |website=Harvard University Herbaria & Libraries |publisher= |access-date=July 29, 2021}}</ref> who worked primarily on the flora of Java.

== Life == Koorders was born in Bandung, Dutch East Indies on 29 November 1863. In 1881 he graduated from the Hogere Burgerschool in Haarlem in the Netherlands. He then pursued advanced studies in forestry at the Royal Prussian Forestry and Hunting Academy in Neustadt Eberswalde, as well as attending classes at the University of Tübingen and the National Agricultural School in Wageningen. In 1885 he became a forest officer for the Dutch East Indies Forest Service in Java. In 1892 he became a curator at the Herbarium Bogoriense in Bogor, Java, Indonesia, where he deposited approximately 40,000 specimens. In 1912 he founded the Dutch East Indies Association for Nature Protection.<ref name=Brascamp>{{cite journal |last=Brascamp |first=E.H.B. |date=1920 |title=Dr. S.H. Koorders |url= |language=Dutch |journal=Tectona |volume=13 |issue=5 |pages= 377-504}}</ref><ref>{{cite journal |url= https://plants.jstor.org/stable/10.5555/al.ap.person.bm000331781 |title= Koorders, Sijfert Hendrik (1863-1919) |author=<!--Not stated--> |date=n.d. |website=JSTOR Global Plants |publisher=ITHAKA |access-date=July 29, 2021}}</ref>

{{botanist|Koord.}}

== Legacy == He is the authority for at least 648 taxa including: {{plantlist|Koord.}}

Several taxa are named in his honor including: *''Begonia koordersii'' <small>Warb. ex L.B.Sm. & Wassh. </small> *''Calamus koordersianus'' <small>Becc.</small> *''Freycinetia koordersiana'' <small>Martelli</small> *''Habenaria koordersii'' <small>J.J.Sm.</small> *''Koordersiella'' {{small|Höhn. (1909)}}<ref>{{cite web |title=''Koordersiella'' F.von Höhnel, 1909 |url=https://www.gbif.org/species/3544645 |website=www.gbif.org |access-date=15 May 2022 |language=en}}</ref> *''Koordersiodendron pinnatum'' <small>(Blanco) Merr.</small> *''Myristica koordersii'' <small>Warb.</small> *''Pandanus koordersii'' <small>Martelli</small> *''Phreatia koordersii'' <small>Rolfe</small> *''Polyscias koordersii'' <small>(Harms) Frodin</small> *''Pomatocalpa koordersii'' <small>Rolfe J.J.Sm.</small> *''Quercus koordersii'' <small>Seemen</small> *''Heptapleurum koordersii'' <small>(Harms) Lowry & G.M.Plunkett</small> *''Trichoglottis koordersii'' <small>Rolfe</small>

== References == {{Reflist}}

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{{DEFAULTSORT:Koorders, Sijfert Hendrik}} Category:1863 births Category:1919 deaths Category:19th-century Dutch botanists Category:Dutch people of the Dutch East Indies

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