Presented by John Ruskin to the Ruskin Drawing School (University of Oxford), 1875; transferred from the Ruskin Drawing School to the Ashmolean Museum, c.1949.
Ruskin, John, The Ruskin Art Collection at Oxford: Catalogue of the Rudimentary Series, in the Arrangement of 1873, ed. Robert Hewison (London: Lion and Unicorn Press, 1984), cat. Rudimentary no. 234, RUD.234
Oeder, George Christian, et al., Icones plantarum sponte nascentium in regnis Daniæ et Norvegiæ, in ducatibus Slesvici et Holsatiæ, ... Floræ Danicæ nomine inscriptum, 23 (Copenhagen: Claudius Philibertus, 1764-1883), vol. XIII (1840), pl. 2164
Ruskin, John, Instructions in Practice of Elementary Drawing, Arranged with Reference to the First Series of Examples in the Drawings Schools of the University of Oxford (n.p., [1872]), cat. Rudimentary no. 230-234
Ruskin, John, Instructions in the Preliminary Exercises Arranged for the Lower Drawing-School (London: Smith, Elder, 1872), cat. Rudimentary no. 230-234
Ruskin, John, Instructions in the Preliminary Exercise Arranged For the Lower Drawing-School (London: Spottiswoode, 1873), cat. Rudimentary no. 230-234
Ruskin, John, ‘The Ruskin Art Collection at Oxford: Catalogues, Notes and Instructions’, Edward T. Cook and Alexander Wedderburn, eds, The Works of John Ruskin: Library Edition, 39 (London: George Allen, 1903-1912), 21, cat. Rudimentary no. 230-234