This is the staminate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

Black Ash Flower

This is the staminate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

This is the pistillate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

Black Ash Flower

This is the pistillate flower of Black Ash, Fraxinus nigra, (Keeler, 1915).

This is the fruit, or samara, of Black Ash, Fraxinus nigra, (Keeler, 1915).

Black Ash Fruit

This is the fruit, or samara, of Black Ash, Fraxinus nigra, (Keeler, 1915).

This is the flower of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

Blue Ash Flower

This is the flower of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

This is the fruit, or samara, of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

Blue Ash Fruit

This is the fruit, or samara, of Blue Ash, Fraxinus quadrangulata, (Keeler, 1915).

Pictured are the flowers and fruits of the orders oleaceae, loganiaceae, gentianaceae, and apocynaceae. The flowers and fruits illustrated are (1) olea, (2) fraxinus, (3) logania, (4) gentiana, (5) apocynum, and (6) vinca.

Orders of Oleaceae, Loganiaceae, Gentianaceae, and Apocynaceae

Pictured are the flowers and fruits of the orders oleaceae, loganiaceae, gentianaceae, and apocynaceae.…

This is the staminate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

Red Ash Flower

This is the staminate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

This is the pistillate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

Red Ash Flower

This is the pistillate flower of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

This is the fruit, or samara, of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

Red Ash Fruit

This is the fruit, or samara, of Red Ash, Fraxinus pennsylvanica, (Keeler, 1915).

This is the staminate flower of White Ash, Fraxinus americana, (Keeler, 1915).

White Ash Flower

This is the staminate flower of White Ash, Fraxinus americana, (Keeler, 1915).

This is the pistillate flower of White Ash, Fraxinus americana, (Keeler, 1915).

White Ash Flower

This is the pistillate flower of White Ash, Fraxinus americana, (Keeler, 1915).

This is the fruit, or samara, of White Ash, Fraxinus americana, (Keeler, 1915).

White Ash Fruit

This is the fruit, or samara, of White Ash, Fraxinus americana, (Keeler, 1915).