Proctor studied botany, zoology and chemistry for his undergraduate degree at
Cambridge University, then did research on
rock-roses (
Helianthemum). Proctor’s flora set out the history of bryophyte recording in the
vice-county of Cambridgeshire and provided a guide to the main habitats. It was the first detailed account of the bryophytes of that county since 1820, when the third edition of
Relhan’s Flora Cantabrigiensis was published. where he taught botany and ecology until retiring in September 1994. Proctor was editor of
Watsonia, the journal of the then
Botanical Society of the British Isles from April 1961 to July 1971. ==Honours and recognition==