Vanilla flore viridi et albo Peony

Vanilla flore viridi et albo PeonyWatercolour on vellum of Vanilla plenifolia flowers (vanilla) by Claude Aubriet. Identified as Vanilla flore viridi et albo by the artist.

Watercolour by Willliam Hooker of The Chaumontelle Pear

Watercolour on vellum of Vanilla plenifolia pods (vanilla) by Claude Aubriet

Printed illustration of a chrysanthemum variety 'Azuma Shibori' taken from the Japanese publication A Hundred Chrysanthemums by K Hasegawa

Muscari (grape hyacinth) and Chionodoxa (glory of the snow)

This painting appears in one of ten volumes known as Hooker's Drawings of Fruit which were commissioned by the RHS to help reform the nomenclature of cultivated fruit

French and Russian

Watercolour on paper by Augusta Innes Withers of unidentified cherry

Attributed to the Chinese artist or collector Wang Lui Chi

Colour plate of an orchid plant taken from James Bateman's book 'The Orchidaceae of Mexico & Guatemala'

Colour woodblock print of Iris Oyoku-Ho-Ren from the catalogue of the Yokohama nursery of Seitaro Arai which specialised in Iris kaempferi

Hypericum linarifolium (small upright St John's wort) painted at various sites in Tunbridge Wells by Lilian Snelling

geologist and respected correspondent of Linnaeus