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Agapanthus umbellatus

Agapanthus umbellatus (1818-1824)

Gaetano Savi (Italian, 1769 – 1844)
Agaricus Campestris ; or Common Field Mushroom

Agaricus Campestris ; or Common Field Mushroom (1799–1810)

Robert John Thornton (English, 1768-1837)
Agathæa cœlestis, fol. variegatis

Agathæa cœlestis, fol. variegatis (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Agave Americana

Agave Americana (1867-1870)

Edward Joseph Lowe (English, 1825 – 1900)
Agave filifera

Agave filifera (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Agave foetida

Agave foetida (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Agave schidigera

Agave schidigera (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Agave Verschaffelti

Agave Verschaffelti (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Agave virginica

Agave virginica (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Ageratum Coeruleum

Ageratum Coeruleum (1896-1897)

Edward Step (English, 1855-1931)
Ageratum conyzoides

Ageratum conyzoides (1823)

William Jackson Hooker (English, 1785 – 1865)
Agnus castus, or the chaste tree

Agnus castus, or the chaste tree (1739)

Elizabeth Blackwell (Scottish, 1707–1758)
Agrimony

Agrimony (1739)

Elizabeth Blackwell (Scottish, 1707–1758)
Agrostis tenacissima

Agrostis tenacissima (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Aka. Rata

Aka. Rata (circa 1885)

Sarah Featon (New Zealander, 1848 – 1927)
Akaakaawa

Akaakaawa (1885)

Isabella McHutcheson Sinclair (Scottish, 1842-1900)
Akala

Akala (1885)

Isabella McHutcheson Sinclair (Scottish, 1842-1900)
Akeake

Akeake (circa 1885)

Sarah Featon (New Zealander, 1848 – 1927)
Akelei (Aquilegia) Akeleijen. Aquilegia. Aucolied

Akelei (Aquilegia) Akeleijen. Aquilegia. Aucolied (1596-1610)

Anselmus Boëtius de Boodt (Flemish, 1550 - 1632)
Åkersennep

Åkersennep (1930)

Parmanns Læremiddel-anstalt (Norwegian, 19th/20th century)
Åkersnelde

Åkersnelde (1930)

Parmanns Læremiddel-anstalt (Norwegian, 19th/20th century)
Åkertistel

Åkertistel (1930)

Parmanns Læremiddel-anstalt (Norwegian, 19th/20th century)
Alaria esculenta

Alaria esculenta (1843-1853)

Anna Atkins (English, 1799 – 1871)
Alaska Fleabane (Erigeron salsuginosus)

Alaska Fleabane (Erigeron salsuginosus) (1925)

Mary Vaux Walcott (American, 1860-1940)
Alaska Fleabane. Erigeron salsuginosus

Alaska Fleabane. Erigeron salsuginosus (1925)

Mary Vaux Walcott (American, 1860-1940)
Alberta Paintbrush (Catilleja miniata)

Alberta Paintbrush (Catilleja miniata) (1920)

Mary Vaux Walcott (American, 1860-1940)
Alberta Paintbrush. Castilleja miniata

Alberta Paintbrush. Castilleja miniata (1925)

Mary Vaux Walcott (American, 1860-1940)
Alberta Primrose (Primula maccalliana)

Alberta Primrose (Primula maccalliana) (1917)

Mary Vaux Walcott (American, 1860-1940)
Alberta Primrose. Primula maccalliana

Alberta Primrose. Primula maccalliana (1925)

Mary Vaux Walcott (American, 1860-1940)
Albicocca Alessandrina a Mandorla Amara. [Armeniaca Alexandrina ; Apricot]

Albicocca Alessandrina a Mandorla Amara. [Armeniaca Alexandrina ; Apricot] (1817-1839)

Giorgio Gallesio (Italian, 1772-1839)