1 folder containing correspondence, map, 3 photographs and report outlining the discovery of a hybrid orchid, Rhizanthera chevallierana, on Ben Lawers by David Mardon in 1979. The folder was compiled after a search for photographs of the plant taken by Mardon in 1984. Contents include, email correspondence between Clive Stace, Adele Smith and Lorna Mitchell outlining the search for photographs and compilation of the folder (2013), report and notes compiled by David K. Mardon in 1984 outlining his find, map showing where he found it, correpondence between Douglas McKean, [Paddy Woods], R.H. Roberts and David Mardon regarding the identification of the orchid, and three photographs taken by Mardon.

2 ring-book volumes detailing the Bryophyte Flora of Barra

• Report on the Tenth International Mycology/ Plant Pathology Excursion, held in Aberdeen between August 13th and 20th, 1964. Record of site visits over the period, discusses plant diseases, list of fungi found and their locations.

The collection comprises photographs and reports related to the gathering and preparation of Sphagnum moss, in and around the Moffat/Beattock area, S.W. Scotland, which was used as a medical dressing for wounds during the First World War.

Subject matter is mainly plants and trees - some of which are the negatives of the photographs used to produce the album Remarkable Trees of Ayrshire which is held in the RBGE Library – together with some images from Royal Arboricultural Society of Scotland annual summer excursions (1896-1902).

The collection also reflects other aspects of Paxton’s photographic interests: these included architectural studies, particularly of tower houses and other historical subjects, both in Scotland and during private travels to Worcestershire, Hampshire, Devon and the Chanel Islands; experiments with light; a fascination with capturing images of water in all its moods; and albums related to his membership of Talbot Circulating Album Club. It is also rich in portraits of family and friends and lively studies of their leisure pursuits.

Collection includes Paxton's bound photographs of 'Remarkable Trees in Ayrshire' presented to the RBGE in December 1894 at the request of Regius Keeper Isaac Bayley Balfour.

Some examples of his photography have been attached to this description. They are not to be reproduced without permission from RBGE.

List produced on RBGE embossed paper, bound together to form a book; beginning with Ranunculaceae, there are 330 pages of plants growing in the Garden in 1883 (though the 3 could also be interpreted as a 5); the book has an index at the back.

2 volumes of unpublished manuscript produced by Janet Rae in the early 1980s. George MacDougall may have typed the manuscripts. The idea was to produce something similar to a book already published, but it was considered too expensive and that there was not enough demand to publish this one. The manuscript does include illustrations, including at least one original pen and ink sketch by Alan McGillveray, and constitutes a description of Edinburgh's changing landscapes in c.1983.
The accession also includes 2x 2020 calendars marking the Society's 150th anniversary in 2019.

Two boxes of card indices - one card per plant appearing in the B.S.B.I. vascular plant survey of the Midlothian Vice County V.C.83, listing the historic literature relating to each plant.

One Field diary produced by the Wild Flower Society in which wild flowers are listed. Judith Basden has filled in dates and locations for ones she has found giving us a botanical record for the area mainly around Bonnyrigg.

1 book containing signatures of visitors to the Logan House gardens between 1949 and 1967. Signatures include many significant figures in the horticultural world- Euan and Peter Cox, Vita Sackville-West using her married name of Nicolson, Cicely M. Crewdson, George Taylor, numerous landowners, members of RBGE staff and, in 1955, HRH, Elizabeth R.