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"A genus of plants of the natural order Rutaceae, having a short 5-partite calx, five some-what unequal petals, ten stamens, and five 1—3 seeded follicular capsules cohering at the base." — Chambers' Encyclopedia, 1875

Dittany

"A genus of plants of the natural order Rutaceae, having a short 5-partite calx, five some-what unequal…

Pictured are the orders of erythroxylaceae, zygophyllaceae, and rutaceae. The flowers of these orders that are illustrated are (1) erythroxylon, (2) zygophyllum, and (3) ruta.

Orders of Erythroxylaceae, Zygophyllaceae, and Rutaceae

Pictured are the orders of erythroxylaceae, zygophyllaceae, and rutaceae. The flowers of these orders…

The leaf of the Grapefruit tree (Citrus decumana) in the Rutaceae family of rues or citrus.

Grapefruit Leaf

The leaf of the Grapefruit tree (Citrus decumana) in the Rutaceae family of rues or citrus.