1997 IUCN red list of threatened plants (1997)

The botanic gardens list of rare and threatened species (1984)

The bulb book; or, Bulbous and tuberous plants for the open air, stove, and greenhouse, containing particulars as to descriptions, culture, propagation, etc., of plants from all parts of the world having bulbs, corms, tubers, or rhizomes (orchids excluded) - Weathers, John, 1867 -1928 (J. Murray, 1911)

The bulb book; or, Bulbous and tuberous plants for the open air, stove, and greenhouse, containing particulars as to descriptions, culture, propagation, etc., of plants from all parts of the world having bulbs, corms, tubers, or rhizomes (orchids excluded) - Weathers, John, 1867 -1928 (J. Murray, 1911)

Bulletin of miscellaneous information - Royal Botanic Gardens, Kew. (H.M. Stationery Office, 1903)

Bullettino del Laboratorio ed Orto botanico - Tassi, Flaminio, 1851 - (L. Lazzeri, 1905)

Caroli a Linné Species plantarum exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (Impensis G.C. Nauk, 1799)

Caroli Linnæi ... Systema vegetabilium - Sprengel, Kurt Polycarp Joachim, 1766 -1833 (sumtibus Librariae Dieterichianae, 1825)

Caroli Linnæi ... Systema vegetabilium - Sprengel, Kurt Polycarp Joachim, 1766 -1833 (sumtibus Librariae Dieterichianae, 1825)

Chronological history of plants: man's record of his own existence illustrated through their names, uses, and companionship - Pickering, Charles, 1805 -1878 (Little, Brown & company, 1879)

Deutsches Magazin für Garten- und Blumenkunde - Neubert, Wilhelm. (G. Weise, 1854)

Encyclopaedia londinensis, or, Universal dictionary of arts, sciences, and literature : comprehending, under one general alphabetical arrangement, all the words and substance of every kind of dictionary extant in the English language : in which the improved departments of the mechanical arts, the liberal sciences, the higher mathematics, and the several branches of polite literature, are selected from the acts, memoirs, and transactions, of the most eminent literary societies, in Europe, Asia, and America : forming a comprehensive view of the rise, progress, and present state, of human learning in every part of the world : embellished by a most magnificent set of copper-plate engravings - Jones, G. (Printed for the proprietor, by J. Adlard ..., sold at the Encyclopaedia Office ... by J. White ... and Champante and Whitrow, 1810)

Familiarum naturalium regni vegetabilis synopses monographicae; seu, Enumeratio omnium plantarum hucusque detectarum secundum ordines naturales, genera et species digestarum, additis diagnosibus, synonymis, novarumque vel minus cognitarum descriptionibus - Roemer, Max J. (Landes-Industrie-Comptoir, 1846)

Familiarum naturalium regni vegetabilis synopses monographicae; seu, Enumeratio omnium plantarum hucusque detectarum secundum ordines naturales, genera et species digestarum, additis diagnosibus, synonymis, novarumque vel minus cognitarum descriptionibus - Roemer, Max J. (Landes-Industrie-Comptoir, 1846)

Flora Capensis : sistens plantas promontorii Bonæ Spei Africes : secundum systema sexuale emendatum - Thunberg, Carl Peter, 1743 -1828 (Apud G. Bonnierum, 1818)

Garden and forest; a journal of horticulture, landscape art and forestry - Sargent, Charles Sprague, 1841 -1927 (The Garden and forest publishing co, 1893)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1881)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1893)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1894)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1916)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1916)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1916)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1916)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1916)

The Gardeners' chronicle :a weekly illustrated journal of horticulture and allied subjects ([Gardeners Chronicle], 1917)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1892)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1893)

Gartenflora - Deutsche Gartenbau-Gesellschaft. (F. Enke, 1892)

General price list of vegetable, farm, tree, conifer, palm, flower and other seeds, canna roots, Italian fruit trees, plants, novelties of seeds & c. & c - Dammann & Co. (Dammann & Co, 1899)

Hand-list of tender monocotyledons, excluding Orchideae, cultivated in the Royal Gardens, Kew. 1897 - Royal Botanic Gardens, Kew. (Printed for H.M. Stationery Off. by Eyre and Spottiswoode, 1897)

Hauptverzeichnis über Samen und Pflanzen - Haage & Schmidt. (Haage & Schmidt, 1921)

Herbertia - American Plant Life Society. (American Plant Life Society, 1936)

Herbertia - American Plant Life Society. (American Plant Life Society, 1934)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1987)

Herbertia - American Plant Life Society. ([American Plant Life Society], 1984)

Herbertia - American Plant Life Society. ([American Plant Life Society], 2003)

Index Kewensis plantarum phanerogamarum : nomina et synonym omnium generum et specierum a linnaeo usque as annum MDCCLXXXV complectans nomine recepro auctore patria unicuique planta subjectis : sumptibus beati Caroli Roberti Darwin ductu et consilio Josephi D. Hooker Tomus 1-2 = Index Kewensis : an enumeration of the genera and species of flowering plants from the time of Linnaeus to the year 1885 inclusive together with their authors names, the works in which they were first published, their native countries and thei - Hooker, Joseph Dalton, 1817 -1911 (Clarendon Press, 1893)

Index Kewensis plantarum phanerogamarum : nomina et synonym omnium generum et specierum a linnaeo usque as annum MDCCLXXXV complectans nomine recepro auctore patria unicuique planta subjectis : sumptibus beati Caroli Roberti Darwin ductu et consilio Josephi D. Hooker Tomus 1-2 = Index Kewensis : an enumeration of the genera and species of flowering plants from the time of Linnaeus to the year 1885 inclusive together with their authors names, the works in which they were first published, their native countries and thei - Hooker, Joseph Dalton, 1817 -1911 (Clarendon Press, 1893)

Le jardin du Crest : notes sur les végétaux cultivés en plein air au château du Crest, près Genève - Micheli, Marc, 1844 -1902 (Impr. Rey & Malavallon, 1896)

Journal of South African botany - National Botanic Gardens of South Africa. (National Botanic Gardens of South Africa, 1939)

Journal of the Royal Horticultural Society of London - Horticultural Society of London (Printed for the Royal Horticultural Society by Spottiswoode & Co, 1916)

Manuel complet du jardinier, maraicher, pépiniériste, botaniste, fleuriste et paysagiste - Noisette, Louis, 1772 -1849 (Rousselon, 1835)

Manuel complet du jardinier, maraicher, pépiniériste, botaniste, fleuriste et paysagiste - Noisette, Louis, 1772 -1849 (Rousselon, 1826)

Nomenclator botanicus; enumerans ordine alphabetico nomina atque synonyma tum generica tum specifica et a Linnaeo et recentrioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (sumtibus I.G. Cottae, 1821)

Nomenclator botanicus :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (Sumptibus J.G. Cottae, 1821)

Nomenclator botanicus, seu, Synonymia plantarum universalis :enumerans ordine alphabetico nomina atque synonyma, tum generica tum specifica, et a Linnaeo et a recentioribus de re botanica scriptoribus plantis phanerogamis imposita - Steudel, Ernst Gottlieb, 1783 -1856 (typis et sumptibus J.G. Cottae, 1840)

Plantae Novae Hispaniae : nutu, ope, et auspicio benignissimi regis Caroli IV, Hucusque collectae, et Linneano systemate ordinatae, quarum tercentae aut plures a nemine unquam editae videntur et rariores iconibus ad vivum repraesentatur - Sessé, Martin, 1809 (Oficina tip. de la Secretaría de fomento, 1893)

Plantae Thunbergianae : ein Verzeichnis der von C. P. Thunberg in Südafrika, Indien und Japan gesammelten und der in seinen Schriften beschriebenen oder erwähnten Pflanzen, sowie von den Exemplaren derselben, die im Herbarium Thunbergianum in Upsala aufbewahrt sind - Thunberg, Carl Peter, 1743 -1828 (A.-b. Akademiska bokhandeln, 1918)

South African journal of science - South African Association for the Advancement of Science. (South African Association for the Advancement of Science, 1912)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (impensis G.C. Nauk, 1799)

Species plantarum : exhibentes plantas rite cognitas ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas - Willdenow, Karl Ludwig, 1765 -1812 (impensis G.C. Nauk, 1797)

Synopsis plantarum,seu Enchiridium botanicum, complectens enumerationem systematicam specierum hucusque cognitarum - Persoon, C. H. (Christiaan Hendrik), 1755 -1837 (C.F. Cramerum, 1805)

Wiener illustrirte Garten-Zeitung - Kaiserlich-Königliche Gartenbau-Gesellschaft in Wien. (W. Frick, 1891)

Wiener illustrirte Garten-Zeitung - Kaiserlich-Königliche Gartenbau-Gesellschaft in Wien. (W. Frick, 1891)