{{Short description|Finnish botanist}} {{Use dmy dates|date=August 2020}} {{Infobox scientist | name = Runar Collander | image = | caption = | alt = | birth_date = {{Birth date|1894|05|1|df=y}} | birth_place = Vyborg, Finland | death_date = {{Death date and age|1973|5|25|1894|05|1|df=y}} | death_place = Helsinki, Finland | resting_place = | fields = Botany, Plant physiology | workplaces = University of Helsinki | alma_mater = University of Helsinki }}

'''Paul Runar Collander''' (1 May 1894 Vyborg – 25 May 1973 Helsinki) was a Finnish botanist. He was an adjunct professor of plant physiology at the University of Helsinki from 1935 to 1939, and professor of botany from 1939 to 1961.<ref name="Kansallisbiografia: Runar Collander"/> He gained international acclaim for his research on the effect of molecular size and solubility ratios on the ability of substances to penetrate the cell membrane.<ref name="Stein & Litman 2015"/> He presented the "lipoid filter theory" of permeability and further developed it. Collander also wrote several works on the history of botany.<ref name="Kansallisbiografia: Runar Collander"/>

==Selected works== *{{cite book |last1=Collander |first1=Runar |title=The History of Botany in Finland, 1828–1918 |series=The History of Learning and Science in Finland, 1828–1918 |publisher=Societas Scientiarum Fennica [Finnish Society of Sciences and Letters] |location=Helsinki |year=1965 |pages=1–159}}

==References== {{Reflist|refs=

<ref name="Kansallisbiografia: Runar Collander">{{cite web |first1=Anto |last1=Leikola |title=Collander, Runar (1894–1973) |publisher=Suomen kansallisbiografia [The National Biography of Finland] |date=20 October 2002 |url=https://kansallisbiografia.fi/kansallisbiografia/henkilo/7078 |accessdate=7 September 2020 |language=fi}}</ref>

<ref name="Stein & Litman 2015">{{cite book |last1=Stein |first1=Wilfred D. |last2=Litman |first2=Thomas |chapter=Simple Diffusion of Nonelectrolytes and Ions |title=Channels, Carriers, and Pumps: An Introduction to Membrane Transport |year=2015 |pages=37–80 |doi=10.1016/B978-0-12-416579-3.00002-2 |publisher=Elsevier |location=Amsterdam |isbn=978-0-12-416579-3 |oclc=898070405}}</ref>

}}

{{Authority control}}

{{DEFAULTSORT:Collander, Runar}} Category:1894 births Category:1973 deaths Category:20th-century Finnish botanists Category:Academic staff of the University of Helsinki Category:Scientists from Vyborg Category:Plant physiologists

{{Finland-botanist-stub}}