FIGURE 1 in Mammillaria monochrysacantha (Cactaceae), a new endemic species from Guanajuato, Mexico

FIGURE 1. Mammillaria monochrysacantha sp. nov. A) Plant in habit showing the typical globose growth form. B) Stem and root system. C) Turgid stem during rainy season showing evident cylindrical tubercles. D) Dehydrated stem during dry season, tubercles are not evident do to they are covered by the hair-like radials stem. E) Plants growing on igneous rocks. F) Flower morphology. D) Fruit shape. E) Seed morphology.