This is a small genus of globular plants, solitary or clustering. They have thick roots. The flowers are very large, and yellow.

Dolichothele longimamma. Central Mexico. A very free-flowering species, popular with collectors. Radial spines number 5 to 7; central spines 1 to 3. The flowers are funnel-shaped, with the outer petals greenish-yellow and the inner petals canary-yellow. The plant has long cylindrical, more or less sea-green tubercles. There are several varieties of this species.

Dolichothele sphaerica. N. Mexico and S. Texas. A clustering plant, with pale green stems, more or less globular. Radial spines number 9 to 15, with 1 central spine. The beautiful flowers are sulphur-yellow.

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