20 stamens or more, situated on the receptacle, as can be proved by carefully removing the sepals and petals. Most of the plants are poisonous, hence this point must be specially noticed to distinguish this group from the last. The class Polyandria includes the water lilies, poppies, buttercups, and their allies belonging to N.O. Nymphaeaceae (156-7), Papaveraceae (158-61), Ranunculaceae (163-73), etc. I also include St. John's Wort, Mallow, and Arum.

No.

Botanical Name.

Common Name.

Season.

Situation.

Structure and Habit.

156

Nymphaea .

Water Lily .

June-Aug.

Lakes and / Streams

Sepals 4, greenish, handsome white flowers.

157

Nuphar . .

Yellow Lily .

June-Aug.

Sepals 5 or 6, yellow, smaller (PI. II and Fig. 17).

158

Papaver .

Poppy . .

-

Fields . .

The first four are scarlet or crimson.

i. hybridum

Round Poppy

May-July

Fields . .

Fruit round, furrowed, hispid.

ii. Argemone

Long ,,

May-July

Fields . .

Fruit pear-shaped, hispid (Plate I).

iii. Rhoeas .

Common ,,

May-July

Fields . .

Fruit round, smooth, hairs on stalk, spreading.

iv. dubium .

Smooth ,,

May-July

Fields . .

Fruit oblong, smooth, hairs pressed down.

V. Sommferum

White ,,

June-Aug.

Fields . .

Fruit smooth, round, leaves glaucous.

159

Meconopsis .

Welsh ,,

June-July

Rocks .

Yellow flowers, fruit oblong, smooth.

160

Glaucium .

Horned ,,

May-Aug.

Shores . .

Yellow, fruit a very long pod, glaucous.

161

Chelidonium .

Celandine.

May-Aug.

Banks .

Yellow flowers, stalk yields orange milk.

162

Helianthemum

Rock Rose .

June-Aug.

Rocks .

Yellow or white, shrubby. 2 sepals, small.

163

Clematis . .

Travellers'Joy

July-Aug.

Hedges. .

Climbing shrub, white flowers, feathery seeds.

164

Thalictrum .

Meadow Rue

July-Aug.

Streams

Racemes of loose yellow or creamy flowers.

165

Anemone

(Fig. 27)

Windflower .

April-May

Woods . .

Sepals changed to white or pink, drooping.

166

Adonis

Pheasant's

Eye

May-July

Fields . .

Pretty crimson flower, 5 to 10 concave petals.

167

Ranunculus .

Buttercup

-

Various

About 20 species and 20 varieties.

i. aquatilis

Water B. . .

May-Aug.

Streams

Very variable, white flowers, yellow centres.

ii. Ficaria.

Celandine

Mar.-June

Fields . .

Root tuberous, 8 petals and 3 sepals.

No.

Botanical Name.

Common Name.

Season.

Situation.

Structure and Habit.

167

Ranunculus - continued.

iii. lingua .

Spearwort

June-Sept.

Bogs . .

Largest kind, 3 to 5 feet, long leaves (Plate II).

iv. acris

Upright B. .

June-Aug.

Fields . .

Calyx spreading, root fibrous.

v. bulbosus

Bulbous B. .

May-Aug.

Fields . .

Calyx turned back, root bulbous.

vi. repens

Creeping B. .

May-Aug.

Fields . .

Calyx spreading, stalk furrowed, root creeping.

vii. arvensis

Cornfield B. .

May-July

Fields . .

Growing among corn, pale, hooks on fruit.

168

Caltha •

Marsh Marigold . .

Mar.-June

Marshes

Showy yellow flowers, succulent stems.

169

Trollius .

Globe-flower.

May-June

Mountains.

Globular yellow blooms, not opening out.

170

Helleborus .

Hellebore

April-May

Woods .

Green flowers; 1 to 2 feet, poisonous.

171

Aquilegia .

Columbine .

May-June

Woods .

Purple flowers with spurs. Often in gardens.

172

Delphinium .

Larkspur . .

June-July

Corn

Blue flowers, irregular with long spur.

173

Aconitum

Monkshood .

June-July

Streams

Dark blue flowers shaped like a hood.

174

Hypericum .

St. John's

Wort .

June-Aug.

Various

10 species, forming the class Polyadelphia.

i. Andro-saemum

Tutsan . .

June-Aug.

Woods. .

Handsome flowers, stamens in 5 bundles.

ii. perforatum

Common

St. John

July-Aug.

Hedges

Leaves held to light seem perforated.

iii. quadrangular

Square

St. John

July-Aug.

Hedges

Stem square, stamens in 3 bundles.

iv. pulchrum

Small St. J. .

June-Aug.

Banks . .

Flowers red in bud, stems round, erect.

v. elodes .

Marsh St. J.

July-Aug.

Bogs

Prostrate, rooting, leaves hairy, flowers few.

175

Malva . . .

Mallow . .

June-Oct.

Wastes.

Petals and sepals 5, stamens form tube (Fig. 29)

176

Arum (Pl. VI and Fig. 31)

Lords and

Ladies

April-May

Banks . .

Peculiar flower like a hood with poker inside.