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Cushman studies Mesembryanthemum crystallinum, also known as the common ice plant.

Mesembryanthemum tricolor: half-hardy, 3 in., pink and crimson, with dark centre.

The Alternantheras, Amaranthuses, Iresines and Coleus Verschaffelti furnish high and warm colours; while Pyrethrum Parthenium aureum yields greenish-yellow: Thymus citriodorus aureus, yellowish; Mesembryanthemum cordifolium variegatum, creamy yellow; Centaureas and others, white; Lobelia Erinus, blue; and the succulent Echeverias and Sempervivums, glaucous rosettes, which last add much to the general effect.

Many species of Mesembryanthemum are cultivated in our gardens, mostly as border-plants.

The flat leaves of this plant are quite unexpectedly different from those of our other species of Mesembryanthemum, which are usually cylindrical or triangular.