FormatPen and black ink on cream board.
Dimensions21.8 cm W x 28.3 cm H (Item)
13 cm W x 21.8 cm H (Platemark or image size)
Illustrations comparing two parallel species of trees, one in America and one in Europe. Illustrations depict a branch with leaves and fruit.
Header: An example of parallel species
Illustrations from left to right:
- one in southeastern America
- ironwood -- Ostrya virginiana
- one in Europe
- European hornbeam -- Ostrya carpinifolia