Cacti (cacti care) M + . Hahniaia . M . Hahniana Werd .

Motherland - Mexico (Guanajuato, Ksretaro, Sierra de Xalapa) . Stem wide, spherical, up to 9 cm high, 10 cm in diameter, light green, shrubs and sod forms; conical nipples; aksily with short whitewool, with 20 long setae; radial spines 20 - 30, a length of 5 - 15 mm, they are hair-like, white, matted; one central spike (at least 2 - 5), 4 mm long, deciduous, whitish, with red-brown ends; flowers 1.5 - 2 cm in diameter, magenta, purple-red fruits, length 7 mm . type has two kinds, one V . verdermanniana differing lengthshairs in the axilla . Genus Mammillaria Haw . - Mammillaria - the most numerous genus of the family Cactaceae . It has 350 species and 98 varieties . Rod is divided into 3 sections hydor-hilum - with watery juice, galaktos-chylos - with milky juice and sub hydro -chymos, which latex is present only in central blood vessels . Depending on the shape of the nipples, and the stemspines and the amount of flowers and other symptoms generally fall into these sections na sub groups and subgroups. Appearance Mammillaria, their flowers, thorns and pubescence unusually varied . A distinctive feature of the genus is the lack of ribs instead of which stem of the plant is covered with papillae, and the special structure of the areola: it is divided into two parts- One carrying the spikes, is at the end of the papilla, the other - and vegetative - is in aksile (the depression between the papillae) . The flowers appear from last year's axilla around the top . After flowering, the fruit is formed immediately, it gradually emerges from aksily . 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 - cold and dry 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 its kind Stella-aurate, M . Pringles, M . goal-ziana 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 Central and Northern Mexico on limestone and chalk cliffs . They no longer need other cactiand in the light of the sun and require lime to the soil additive .    ,