[5] Laundon was an active member of the International Association for Plant Taxonomy and was on the Special Committee for Fungi and Lichens for a number of years, served on four international committees dealing with fungus nomenclature, and was invited to investigate the nomenclature of rust genera and write a chapter for Index Nominum Genericorum.
Laundon was the first to realise there were two species involved when the poplar rusts were first found in New Zealand in 1972, a claim not verified until samples of the spores were examined with an electron microscope.
In an article written in 1976, Laundon explained how internalised queerphobia - which she defines as the "fairly common belief that intersexuals, transsexuals, transvestites, fetishists and homosexuals are all one in the same thing, and are all 'disgusting'" - often caused trans people to isolate themselves.
She emphasised the importance of trans friendships:Simply to meet others and see just how normal and decent they really are, and to see what they have achieved in bringing out their real selves, can be a revelation, and this can help towards self-acceptance, which, if you think about it, may be YOUR greatest problem.
[11] Hedesthia was primarily a social organisation, and Laundon felt that there was a need for a "bureau of information" specifically geared towards supporting transsexuals.
TransFormation and Hedesthia worked closely alongside one another, sharing information and resources, as well as teaming up to send publicity and form relationships with a variety of organisations across the country, including gay activist and social groups, public libraries, universities, and various community support organisations.
Laundon and Cox were encouraged by a grant of $50 from the Mental Health Foundation in 1977, which while not a large sum, provided the "first 'Official' recognition of the integrity of our service.