Fat plants

Identification of four succulent seedlings

Application: identification of four succulent plants

Hi everyone, my name is Gabriele and I have a cactus composition composed of a myrtillocactus geometrizans, three mamillarias, a cleistocactus strausii and a hawortia. I do not know the botanical names of the three mamillarias and hawortia. One is spherical in shape with very small white spines (the central spines have a black tip) and is provided with very thin water-green tubercles, having a delicate white fluff. The second mamillaria, on the other hand, is columnar in shape, about 7-9 cm long and has pink-red flowers. It has sunny yellow spines with central thorns at the base of a brownish color while at the tip is black in color. It has medium-sized tubercles of dark green color. The apex of the plant is covered with white thorns with a pure white fluff. The last mamillaria is globular, tiny. It has tubercles much larger than the other two, almost triangular in shape and light green with yellowish reflections, provided with a fairly long fluff. At the apex of the tubercles, four thin white spines with a brownish-black tip emerge, one of which is longer than the others. The youngest spines, which grow at the apex of the plant, are more yellow than darker. The hawortia (perhaps gasteria) is a rosette of light green leaves, very fleshy especially at the apex which is round and provided with a small tip. The apex then, is characterized by a kind of "tigratura" of a darker green almost transparent, compared to the color of the whole leaf, which seems almost the color of a fenestraria.
I wait for answers,

Answer: identification of four succulent plants

Dear Gabriele,
in the world there are thousands of species of cacti and succulent plants; there are many mammillarias, of which particular hybrids have also been made; you will understand how difficult it is to decide the species of a succulent plant, albeit helped by your precise descriptions, but without a photograph (consider however that, even with photography, it is not always possible to decide the species of a succulent plant, even for the experts of the sector); so take my opinions precisely as opinions, and not as unequivocal scientific data. Let's start from the simplest, the haworthies are usually tiny bushes of erect, fleshy, slightly leathery leaves, dark green, with light bands; given the bizarre appearance of your hawortia, I think it may be a Hawortia cymbiformis var. multifolia, try to look online for photos of this species and variety. For the first mammillaria, the light fluff may suggest a mammillaria candida: these plants tend to have an elongated development, but the young specimens are perfectly spherical. Or it could also be a Haniana mammillaria, the color of the flowers could help, but unfortunately we don't communicate it. The third mammillaria, with the almost triangular tubercles, could be a mammillaria marksiana, with those tubercles very evident and the color tending to yellow-green, and not yellow-blue of many other mammillarias. As for the second mammillaria, I have no ideas, because you have described almost 200 species of mammillaria in those few lines and so I cannot tell you what kind of precise your words make me think. I'm sorry, but without seeing the plants, this recognition is definitely difficult. Try searching online, and compare your plants with the hundreds you can see in the picture.