Heirloom Fruit Watercolors

Citruss · USDA pomological watercolour

Thompson Improved Navel Citrus

Historical USDA watercolour of the Thompson Improved Navel Citrus citrus, painted 1860

Thompson Improved Navel Citrus is a historic fruit cultivar documented by the U.S. Department of Agriculture between 1886 and 1942. 3 watercolour studies of it survive in the collection, with specimens recorded from California, painted by Newton, Amanda Almira. The paintings served as official botanical identification records before colour photography.

CultivarThompson Improved Navel
SpeciesCitrus sinensis
Common fruitCitrus
Painted1860
Artist(s)Newton, Amanda Almira
Specimen originCalifornia
CollectionUSDA Pomological Watercolor Collection
Plates3

All 3 plates

Public domain via the U.S. National Agricultural Library. Plate ids: POM00006487, POM00006488, POM00006489.

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