Herbs or shrubs with succulent leaves, mostly alternate; no stipules, and flowers in terminal racemes or cymes. Sepals 3 or more, usually 5. Petals as many, sometimes united in a single corolla.

Stamens as many or twice as many, inserted with the petals at base of calyx. Ovary superior. Carpels 3-5 or more, usually quite distinct. Ovules numerous, attached to the ventral suture. A large family spread over the greater part of the globe.

Sedum L

Succulent herbs, sometimes woody at the base, with scattered leaves, sometimes opposite or whorled, especially at the base or on barren stems. Sepals 4-6, usually 5. Petals as many. Stamens twice as many. Carpels as many as the petals, each with an entire or emarginate scale at the base, and with several seeds.

A large and widely spread genus, especially in Central and Southern Europe and Central Asia.

Sedum Album L. White Stonecrop. (Plate XVI)

Stock creeping and procumbent, with short, barren stems, and erect, flowering branches, 4-6 inches high, glabrous. Leaves oblong or cylindrical. Flowers usually pure white, but sometimes pale pink, numerous, in beautiful terminal cymes. Sepals short, oval, obtuse. Petals oblong and obtuse.

Rocks, walls, etc., very common from the plains to the sub-alpine region. July, August.

Distribution

Europe, Western Asia and Siberia, N. Africa. British.

Sedum Villosum L. Hairy Sedum

An annual, with erect, simple stems, 4 to 5 inches high. The upper portion of the plant more or less covered with short, viscid hairs. Leaves alternate or scattered, oblong or cylindrical. Flowers few, pale rose-colour, in a loose terminal cyme. Sepals green, ovate. Petals ovate, twice as long as the sepals.

Marshes and turf bogs, and by rivulets in the mountains. Extends in Switzerland up to the Alpine region, but is local. June, July.

Distribution

Central and Northern Europe, Greenland, Algeria. British.

Sedum Atratum L. (S. Rubens Wulf)

Stem 1-3 inches high, ascending or erect, simple or branched at the base, glabrous like the whole plant, often dotted or streaked with red. Leaves club-shaped, fleshy, obtuse, somewhat flat on upper side. Flowers yellowish or greenish white, in a terminal, often unilateral, cyme. Calyx reddish brown; capsule dusky purple, and the whole plant reddish when older. Annual or biennial.

Alpine rocks and dry pastures, 4300-9000 feet, or higher. July, August.

Distribution

Carpathians; Eastern, Central, and Western Alps; Jura, Pyrenees, Balkan provinces.