They are very puzzling, and the part that baffles the young botanist is the calyx, which, as it sometimes has two or three corollas within it, cannot be considered a calyx at all, but must be called an involucre. In reality the corolla is absent, and the calyx, which is colored like a corolla, is called a perianth. This appears to sit upon the top of the round ovary, but in reality a green continuation of it is drawn down tightly over the ovary.

[CALIFORNIAN FOUR-O'CLOCK—Mirabilis Californica.]

BEACH MORNING-GLORY.

Convolvulus Soldanella, L. Morning-glory Family.

Stems.—A foot or less long; trailing. Leaves.—Kidney-shaped; long-petioled; leathery; an inch or two broad. Flowers.—Pink to lavender; one to nearly three inches across, with a pair of thin bracts just below the calyx, partly enveloping it. (Otherwise as C. luteolus.) Hab.—The seashore from Puget Sound to San Diego.

The beach morning-glory trails its stems over the shifting sands of the seashore, making clusters of beautiful foliage, over which the large, delicate flowers raise their exquisite satin funnels.

CALYPSO.

Calypso borealis, Salisb. Orchis Family.

Bulb.—Small; solid. Stem.—Three to six inches high. Leaf.—An inch or two long. Sepals and petals light to deep rose-color; six to nine lines long. Lip.—Brownish pink, mottled with purple. Style.—Petaloid, oval, and concave, bearing the hemispherical anther on its summit underneath. Hab.—The northern Coast Ranges; also across the continent.