Walter Alfred Fitz Maurice

Aztekium hintonii, is a species of cactus in the genus Aztekium.

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Mammillaria multihamata is a species of flowering plant in the family Cactaceae. It is a succulent cactus subshrub endemic to northeastern Mexico, where it ranges from Guanajuato to San Luis Potosí. Its natural habitat is submontane semi-desert matorral (shrubland), where it grows in steeply sloping volcanic rocky terrain at about 1200 meters elevation. The IUCN Red List assesses the species as Critically Endangered, under the synonym Mammillaria marcosii.

Geohintonia mexicana (discovered in 1992) is a species of cacti, the only species in the genus Geohintonia. This genus is named after its discoverer George S. Hinton. As its specific epithet suggests, the plant is found in Mexico (Nuevo León), where it grows on gypsum hills near Galeana.

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