Jan Říha

Turbinicarpus gielsdorfianus is a species of flowering plant in the family Cactaceae. It is a succulent cactus subshrub endemic to northeastern Mexico. It was discovered near Ciudad del Maíz in San Luis Potosí state, in dry mattoral shrubland on a rocky calcareous slope. It is part of an edaphic plant community called matorral rosetófilo which grows on calcareous substrates. It was thought to be extinct for some time until it was rediscovered. It is a Critically endangered species, threatened by habitat loss. The species was first described as Echinocactus gielsdorfianus by Erich Werdermann

Turbinicarpus viereckii is a species of plant in the family Cactaceae. It is endemic to Tamaulipas, Nuevo León and San Luis Potosí states in northeastern Mexico. Its natural habitat is hot deserts.

Turbinicarpus saueri is a species of plant in the family Cactaceae. It is endemic to San Luis Potosí and Tamaulipas states, located in northeastern Mexico. Its natural habitat is hot deserts.

Thelocactus lausseri is a species of cactus endemic to Mexico.

Turbinicarpus saueri is a species of plant in the family Cactaceae. It is endemic to San Luis Potosí and Tamaulipas states, located in northeastern Mexico. Its natural habitat is hot deserts.

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