[2] In 1965, Lindsay left England with the British Antarctic Survey to study lichen growth rates.
The aim of the study was to determine how long the Antarctic islands have been free from a permanent ice cap.
Here Lindsay furthered the work of lichenologist Elke Mackenzie through the documentation of species and the collection of herbarium specimens.
[5] After the end of his first tour, Lindsay brough back living lichen specimens to Winterbourne in Birmingham.
[10] In the 1980s, he led surveyors from the Wildlife Trust for Birmingham and the Black Country to collect lichens in the West Midlands.
[10] In addition to his solo works, Lindsay contributed chapters to publications including Mark Seaward's Lichen Ecology (1977)[15] and M. C. Clark's A Fungus Flora of Warwickshire (1981).