Residents planted a Silver Birch tree in Riley Park to commemorate Queen Elizabeth II's reign.
Marlow Common Women's Institute planted a tree last Thursday as part of the Queen's Green Canopy campaign.
The campaign was created in 2021 to mark Queen Elizabeth II's Platinum Jubilee by planting trees around the UK in her name.
The Women's Institute planted a tree in Riley Park, Marlow, with support from volunteer group Releaf Marlow and the Riley Park Trust.
Nick Rowcliffe, co-ordinator of Releaf Marlow, said: "More trees add beauty to our town and are good for both wildlife and the climate."
The Queen's Green Canopy initiative was originally due to conclude in December, but was extended to include the full UK tree planting season, ending in March 2023.
The campaign's website reads: "The extension of the QGC initiative will build on this legacy and serve as a lasting tribute to Her Majesty's extraordinary service to her country and her people.
"It will give people the opportunity to plant trees in memoriam to honour Her Majesty."
Alongside planting new trees, the initiative also dedicated 70 ancient woodland areas to the late Queen, including Burnham Beeches in Buckinghamshire.
An interactive map on the QGC site shows planting projects across the UK.
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