There are four plants in our islands which have nine as the normal number of stamens, and so form the Class Enneandria.

No.

Botanical Name.

Common Name.

Season.

Situation.

Structure and Habit.

114

Butomus . .

Flowering Rush

June-July

Marshes .

Rose flowers on tall, rushlike stalk. (Plate II).

115

Mercurialis

Annual . .

July-Nov.

Gardens

Flowers green in tassels; stamens and pistils on separate plants.

Perennial. .

March-May

Hedges. .

Turns blue when dried.

116

Hydrocharis .

Frog-bit . .

July-Aug.

Marshes .

Flowers delicate, white, leaves kidney-shaped.