Cacti (cacti care) M + . Rodanthe . M . Rliodantha Lk . Et O .

Motherland - Mexico (Valley of Mexico, Queretaro, Hidalgo) . Stem globular to elongate, up to 30 cm in diameter and 10 cm, single, bushy, dark -Green; cylindrical-conical nipples; aksily with white hair and bristles; radial spines 16 - 20, of 6 - 10 cm,lower longest, fine-needle; central spines 7; spikes whitish to yellowish . 2 cm long flowers, 1.6 cm in diameter, dark pink, reddish fruits, length 25 mm . a Type species v . cnssispina, v . fulvispina, v . rubens, v . rubra, which differ in color spikes . Genus Mammillaria Haw . - Mammillaria - the most numerous genus of the familyCactaceae . It has 350 species and 98 varieties . Rod is divided into 3 sections hydor-hilum - with watery juice, galaktos-chylos - with milky juice and hydro sub-chymos, whose sap is available only in the central vessels . Depending on the shape of the nipples, studs, and the stem, and flowers and other quantities, these attributes are divided into more sections na subsectionsgroups and subgroups . Exterior Mammillaria, their flowers, thorns and pubescence unusually varied . A distinctive feature of the genus is the lack of edges, instead of which the stem of the plant is covered with papillae, and the special structure of the areola: it is divided into two parts - one carrying spikes is at the end of the nipple, the other - and generativevegetative - is in aksile (depression between papillae) . The flowers appear from last year's axilla around the top . After flowering, the fruit is formed immediately, it gradually emerges from the axilla . Plant of the genus Mammillaria culture mostly unpretentious . In the summer they need moisture and the sun (with shading from strong heat), in the winter - dry andcold content at + 8, + 10 ° . Some authors (Pazhout, etc. . . ) Identify groups Mammillaria the general background that creates a coating of stem pubescence . Very beautiful white (M . Bocasana, M . Kandnda, M . Plumosa and M . hahniana) and yellow Mamillaria (M . elongata, especially the kind of Stella-aurate, M . Pringles, M . tselziana and others), Pubescence which hairs, spines and bristles often completely covers the buds on the stem and looks very impressive. White Mamillaria grow in mountainous areas of central and northern Mexico on limestone and chalk cliffs . They no longer need other cacti in the light of the sun and require soil additives lime .