Photo: Mammillaria paulii | Cactus Mammillaria album | Cok Grootscholten Succulent World ..
Mammillaria paulii
Mammillaria paulii · iNaturalist
British Cactus and Succulent Society - Mammillaria paulii, one of the most spectacular large-flowered mamms, with a beautiful yellow flower, slightly scented. | Facebook
PDF) Mammillaria paulii Linzen | Pedro Nájera - Academia.edu