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Arbre de gomme-gutte

Arbre de gomme-gutte (1719)

Maria Sibylla Merian (German, 1647 – 1717)
Arbronia umbellata

Arbronia umbellata (1823)

William Jackson Hooker (English, 1785 – 1865)
Arbutus Andrachne

Arbutus Andrachne (1818-1824)

Gaetano Savi (Italian, 1769 – 1844)
Arbutus Andrachne ; or Oriental Strawberry Tree

Arbutus Andrachne ; or Oriental Strawberry Tree (1799–1810)

Robert John Thornton (English, 1768-1837)
Arbutus unedo

Arbutus unedo (1818-1824)

Gaetano Savi (Italian, 1769 – 1844)
Arctium Lappa

Arctium Lappa (1797–1810)

Petr Martynovich Gofman (Russian, 19th Century)
Arctotis

Arctotis (1750-1773)

Georg Dionysius Ehret (German, 1708-1770)
Arctotis Decurrens

Arctotis Decurrens (1921)

Illtyd Buller Pole-Evans (South African, 1879-1968)
Areca Sapida

Areca Sapida (1888)

Georgina Burne Hetley (New Zealander, 1832 – 1898)
Arenaria biflora

Arenaria biflora (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Arenaria formosa

Arenaria formosa (1904)

Mary Vaux Walcott (American, 1860-1940)
Arethusa (Arethusa bulbosa)

Arethusa (Arethusa bulbosa) (1918)

Mary Vaux Walcott (American, 1860-1940)
Arethusa bulbosa

Arethusa bulbosa (1823)

William Jackson Hooker (English, 1785 – 1865)
Arethusa. (Arethusa bulbosa)

Arethusa. (Arethusa bulbosa) (1925)

Mary Vaux Walcott (American, 1860-1940)
Aretotis aspera flore aureo

Aretotis aspera flore aureo (1818-1824)

Gaetano Savi (Italian, 1769 – 1844)
Aristolochia barbata

Aristolochia barbata (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Aristolochia barbata

Aristolochia barbata (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Aristolochia bilobata

Aristolochia bilobata (1781-1793)

Nikolaus Joseph Freiherr von Jacquin (Dutch, 1727 – 1817)
Aristolochia cordiflora

Aristolochia cordiflora (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Aristolochia Duchartrei

Aristolochia Duchartrei (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Aristolochia floribunda

Aristolochia floribunda (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Aristolochia Goldieana

Aristolochia Goldieana (1893)

George Nicholson (English, 1847 - 1908)
Aristolochia tricaudata

Aristolochia tricaudata (1854-1896)

Charles Antoine Lemaire (French, 1800-1871)
Aristotelia Racemosa

Aristotelia Racemosa (1888)

Georgina Burne Hetley (New Zealander, 1832 – 1898)
Arizona Thistle

Arizona Thistle (1915)

Margaret Armstrong (American, 1867-1944)
Ärkehertigspäron

Ärkehertigspäron (1924)

Henriette Sjöberg (Swedish, 1842-1915)
Armillaria aurantia (Schäff) Quél, Tricholoma aurantium Schff., nach Ricken

Armillaria aurantia (Schäff) Quél, Tricholoma aurantium Schff., nach Ricken (1915-1945)

Hans Walty (Swiss, 1868-1948)
Armillaria aurantia Schäff. Quél.

Armillaria aurantia Schäff. Quél. (1915-1945)

Hans Walty (Swiss, 1868-1948)
Armillaria imperialis Fr

Armillaria imperialis Fr (1915-1945)

Hans Walty (Swiss, 1868-1948)
Armillaria imperialis Fr.

Armillaria imperialis Fr. (1915-1945)

Hans Walty (Swiss, 1868-1948)