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A Tibetan. Wife of the first Prime Minister Lyonchhen Jigme Palden Dorji. As the wife of Bhutan’s Prime Minister, Tess La, had an important behind the scenes role to arrange meals and host important guests both domestic and foreign.

After her husband's assasination, she went to teach in a Tibetan school for young refugee students, and she eventually remarried.

Better known as Tess La (a nickname given to her by English nuns who were unable to pronounce her name).

She had 3 sons with her first husband: Dasho Benji Dorji, Tobgye Sonam Dorji and Kalden Wangchuk Dorji.

Tess La did not hold any official position in the Royal Government of Bhutan, but her unofficial duties and interests played an important role in Bhutanese education and diplomacy. She played an important role during the advent of modern education in Bhutan and was involved in starting Bhutan’s first agricultural cooperative to help farmers.

In the earlier days Tess La looked after a young Crown Prince Jigme Dorji Wangchuck who would go on to become His Majesty The Third King, HRH (Paro Penlop) Namgyel Wangchuck, HRH Ashi Deki Yangzom Wangchuck and many ordinary Bhutanese students who were among the first waves of Bhutanese studying in Darjeeling and Kalimpong.

Tess La was also part of the 3-member all women delegation sent from Bhutan headed by Ashi Tashi Chodzom Dorji to Australia in 1962 that enabled Bhutan to get a surprise entry into the Colombo Plan and here again Tess La played an important role behind the scenes. Ever the skill full host, full of charm and a good dancer, Tess La was a social hit and became popular with the international crowd already amazed by the all-women delegation from Bhutan to the Colombo plan talks.

Mary Gibby was a remarkable person and a leading botanist of her generation. During her long and distinguished career, she focused on ferns, the genus Pelargonium, plant conservation, and supporting the next generation of botanical researchers. Equally at home in the laboratory with her microscope or in the hills of Scotland or mountains of Yunnan, Mary was also a sound strategic thinker and a talented manager of scientists. She was a former president of the British Pteridological Society and, until her death, editor of its international research journal, the Fern Gazette. For her many achievements Mary was elected Fellow of the Royal Society of Edinburgh in 2004 and was appointed an Officer of the Most Excellent Order of the British Empire (OBE) in 2010. Born on 27 February 1949, Mary died on 17 July 2024 during fieldwork in the Italian Alps with her husband, Professor Janis Antonovics, FRS.

Mary read botany at the University of Leeds under Professors Irene Manton and John Lovis, securing first-class honours in 1971. Under the supervision of Stanley Walker at the University of Liverpool, she studied for a Ph.D. on biosystematics and cytogenetics in the fern genus Dryopteris.

Mary made full use of the wide network of pteridologists of the Leeds and Liverpool schools, and of botanical garden collections and herbaria, and was able to hybridise diploid and tetraploid species to observe chromosome behaviour at meiosis. Knowing the origin of her artificially created hybrids, Mary understood that failure of chromosome pairing in triploids indicated that the diploid and tetraploid taxa were unrelated. Pairing in the triploid hybrid would confirm one of the ancestors of the tetraploid. The cytogenetic techniques involved had been developed and perfected by Irene Manton and her school in the 1940s, 50s and 60s, and represented state-of-the-art experimental taxonomy and biosystematics of the time. Given the difficulty of obtaining nuclear gene sequence data in these highly polyploid species, Mary’s results remain important today in the classification and identification of Dryopteris species.

As an undergraduate Mary spent a summer internship at the Natural History Museum, London (NHM), and in 1975, during the completion of her Ph.D., joined the staff of its botany department. At that time the NHM was still predominantly populated by male scientists (often without Ph.D.s) and focused on descriptive taxonomy and morphology.

Once at the NHM, and following her Leeds and Liverpool training, she chose to do much of her research at the Chelsea Physic Garden where, as a cytologist, she could be among a living collection of her ferns and other interesting plants. Her laboratory there gave the Physic Garden an active role in research at a time when it was not regularly open to the public, and Mary undoubtedly influenced the curatorial thinking and the development of its collections. Her work on Dryopteris of the northern hemisphere continued into the late eighties. At the same time, while she was embedded in the Chelsea Physic Garden community, her research interests diversified, and she started to work on the cytology of the flowering plant genus Pelargonium.

Inspired by attending a conference in the United States in 1991, Mary became interested in the application of newly emerging molecular methods to biosystematic, taxonomic and phylogeographical questions. Over subsequent years, her work focused on three groups: the genus Pelargonium, the filmy fern Trichomanes speciosum, and European/Macaronesian Asplenium.

In all three groups, her teams combined fieldwork, morphology, cytology and molecular methods, including enzyme electrophoresis and chloroplast DNA (cpDNA) sequencing.

At the NHM Mary’s fern team concentrated on two programmes: the genus Asplenium and the rare Trichomanes speciosum. The first phylogeny of Asplenium, the most speciose fern genus, was published in 2004. Under Mary’s leadership, the team became one the largest research groups on ferns worldwide

In addition to her prolific and diverse scientific career, Mary was also a distinguished scientific leader. Following her role as Associate Keeper of the NHM Botany Department, which started in 1997, she was appointed Director of Science at the Royal Botanic Garden Edinburgh (RBGE) in 2000.

The experience gained at the NHM and Chelsea Physic Garden stood Mary in good stead as she began the transformation of science at RBGE, careful at all times to foster close integration between scientists and horticulturists. Mary also strengthened institutional relationships with the University of Edinburgh, the Scottish Crop Research Institute (now part of the James Hutton Institute) and Scottish Natural Heritage (SNH, now NatureScot). As a member of the Action Plan and Science Group of SNH, she was much involved in developing early versions of Scotland’s Biodiversity Strategy and hosting the Scottish Biodiversity Forum conference, which on several occasions was held at RBGE.

Mary led the development of a programme to conserve Scottish rare plants, which brought threatened species into the public eye and began the restoration of several species into the wild. As Director of Science at RBGE Mary travelled widely, making official visits to strengthen collaborations in China, Belize, Bhutan, Indonesia, Singapore and Soqotra, among other places.

Mary was central to the restoration project for the Victorian fernery at Benmore Botanic Garden, part of RBGE, in western Scotland.

After retiring from RBGE in 2012, Mary continued to work as a research associate at the NHM London and RBGE in Edinburgh, active in editing, helping to curate collections, teaching, and helping students and colleagues.

Mary was a considerate and strong leader, an exemplary Ph.D. supervisor, and a great mentor. With an astute understanding of, and insights into, character, she knew her science and was respected as a member of the scientific community. She established large research teams and attracted substantial amounts of external funding.Outwith academia, Mary loved the outdoors and enjoyed regular collecting field trips in the UK, Europe and Africa. After the birth of her daughter, Jessica Barrett, these became family trips, Jess accompanying her mother from the age of six months on the island of Madeira and later in Africa. After retirement Mary continued fieldwork with her husband, fellow botanist and geneticist Janis Antonovics, on his annual fieldwork in the mountains in Italy.

In addition to nature and wild places, another of Mary’s major passions was for canals and narrowboats. Much time was spent aboard her beloved Swan, a working narrowboat built in 1933 that she owned and faithfully restored. She was a founding member of the Battlebridge Basin boat community at King’s Cross, London, and served as a Director of the London Narrow Boat Company Ltd from 2014 to 2020

Went to the University of Exeter to take an Honours Degree in Botany. In 1961, she moved to the botany department at the University of Leeds to become a research student of Professor Irene Manton. Anne's area of research was in two genera: Asplenium and Polystichum. She investigated the relationship between diploid taxa and the evolution of polyploids.

Many aspects of her work can be found in her 1966 dissertation, "Some cyto-taxonomic problems in the fern genera Asplenium and Polystichum," which, unfortunately, was never published and therefore only exists in a few copies. She was then awarded a research fellowship to spend two years in Japan from 1967 to 1969 to continue her work on ferns. She recalled this as a formative experience in her life. It allowed her to travel extensively in the East and establish a broad circle of professional and personal friendships.

Anne had barely returned from Japan when she developed systemic sclerosis, a rare and debilitating disease that proved difficult to diagnose and treat. This illness increasingly restricted her and made it less and less possible for her to pursue scientific work. Despite the great difficulties arising from her illness, she continued to expand her research, though the practical fern work proved increasingly difficult. Eventually, her illness began to affect her heart, and she eventually succumbed to the disease.

The Anne Sleep Award (The Linnean Society), Established by Mrs. Ivy Sleep in fulfilment of the wishes of her daughter, Dr Anne Sleep FLS. Awards of up to £3,000 are made at (odd-numbered) two year intervals, to assist one or more scholars to carry out biological research in the Middle or Far East, or similarly for scholars from the Middle or Far East to pursue their own biological research in the UK.

Mrs. Ivy Sleep, died in 1996 and left the sum of £120000 to the Linnean Society of London in fulfilment of her daughter’s wishes.