"Begonia Flowers. A, staminate flower; B, pistillate flower; C, twisted stigmas, enlarged; D, cross-section of ovary; o, ovary; s, sepals; p, petals." -Bergen, 1896

Begonia

"Begonia Flowers. A, staminate flower; B, pistillate flower; C, twisted stigmas, enlarged; D, cross-section…

"Staminate flower of the broad-leaved cat-tail (Typha latifolia)." -Gager, 1916

Cattail Flower

"Staminate flower of the broad-leaved cat-tail (Typha latifolia)." -Gager, 1916

Pictured is a staminate flower of cucumis melo.

Cucumis Melo

Pictured is a staminate flower of cucumis melo.

Pictured are the staminate and pistillate flowers of cucumis sativus.

Cucumis Sativus

Pictured are the staminate and pistillate flowers of cucumis sativus.

The left image is a staminate flower of Russian mulberry. The right image is a pistilate flower.

Russian Mulberry Flower

The left image is a staminate flower of Russian mulberry. The right image is a pistilate flower.

Illustrated is the staminate flower of hubbard squash.

Hubbard Squash

Illustrated is the staminate flower of hubbard squash.

"Willlow (Salix). Leafy branch, bearing two pistillate catkins. Staminate flower above, at the left; pistillate flower below, at the right." -Gager, 1916

Willow Branch

"Willlow (Salix). Leafy branch, bearing two pistillate catkins. Staminate flower above, at the left;…

"Catkins of willow. A, staminate flowers; B, pistillate flowers." -Bergen, 1896

Willow Catkin

"Catkins of willow. A, staminate flowers; B, pistillate flowers." -Bergen, 1896

"Flowers of willow. A, staminate flower; B, pistillate flower." -Bergen, 1896

Willow Flowers

"Flowers of willow. A, staminate flower; B, pistillate flower." -Bergen, 1896