The genus consists of 7 species. They have slender, trailing stems which hang down gracefully. The flowers are a rich red or carmine, and when in flower the plants are very beautiful. The blooms last three or four days. The plants respond well to a treatment of liquid fertilizer when buds begin to form. They are natives of Mexico and Central America.

Aporocactus flagelliformis. Usually referred to as the “rat s tail cactus” because of its pendent method of growth. It is common in collections, for it is easily cultivated in a mixture of 2 parts leaf-mould, 1 part loam, and 1 part sharp sand. It delights in full sun and should be watered liberally throughout the summer. The stems are shining green, but later turn greyish. Ribs number 10 to 24, with numerous minute areoles; spines radiate in clusters of 15 to 20.

Aporocactus flagriformis. Very similar to the preceding species, but with 7 to 10 ribs, and the areoles farther apart; radial spines number 6 to 8, centrals 2 or more.

Aporocactus martianus. The stems may be erect or sprawling, with 8 ribs; radial spines number about 8, central spines 3 to 4. The plant is very free flowering and the flowers a lively red.

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