Iris Species by date of original diagnosis

1750- 1760- 1770- 1780- 1790- 1790- 1800- 1810- 1820- 1830- 1830- 1840- 1850- 1860- 1870- 1880- 1890- 1900- 1910- 1920- 1930- 1940- 1950- 1960- 1970- 1980- 1990- 2000- 2010

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1750....This decade=16 species

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1760....This decade 1 species; 17 cumulative

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1770....This decade 6 species; 23 cumulative

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1780....This decade 6 species; 29 cumulative

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1790....This decade 2 species; 31 cumulative

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1800....this decade 7 species; 38 cumulative

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1810....This decade 7 species; 45 cumulative

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1820....This decade 8 species; 53 cumulative

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1830.... This decade 9 species; 62 cumulative

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1840....This decade 6 species; 68 cumulative

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1850.....This decade 8 species; 76 cumulative

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1860....This decade 3 species; 79 cumulative

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1870.....This decade 13 species; 92 cumulative

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1880....This decade 31 species; 123 cumulative

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1890....This decade 21 species, 141 cumulative

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1900....This decade 16 species, 157 cumulative

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1910....This decade 11 species, 168 cumulative

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1920....This decade 16 species, 184 cumulatve

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1930....This decade 30 species, 214 cumulative

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1940....This decade 3 species, 217 cumulative

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1950....This decade 12 species; 232 cumulative

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1960....This decade 9 species; 241 cumulative

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1970....This decade 36 species; 276 cumulative

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1980....This decade 26 species, 302 cumulative

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1990....This decade 15 species, 317 cumulative

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2000....This decade 20 species, 337 cumulative

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2010....This decade 26+ species, 363+ cumulative

Iris caspica unknown date

References:

Kew's World Checklist
The International Plant Names Index

For more information on historic Irises visit the Historic Iris Preservation Society at http://www.historiciris.org/

-- BobPries - 2016-04-28
Topic revision: r18 - 06 Sep 2016, BobPries
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