MAMMILLARIA
A very large Genus of cacti, and very popular as most flower after only a few years - typically producing rings of small flowers round the crown.
(names in brackets are alternative names - depending on which taxonomy you use)
Mammillaria albilanata iguelensis
Habitat - Mexico
Max Size - 6 x 3
Flower - purple-pink
Flower Size - 0.3 x 0.3
Clumps - No
Mammillaria bombycina
Mammillaria calacantha
Mammillaria candida
Mammillaria carmenae
Habitat - Mexico
Max Size - 3.8 x 1.5
Flower - white or pink
Flower Size - 0.4 x 0.4
Clumps - yes
Mammillaria celsiana
Mammillaria conspicua
Mammillaria Crinita seems to be a complex species. I am led to think that the above is one because, in all the literature I've read, its the only one highlighted as 'flowering for a long time'. The spination also fits the bill. The above is shown near the end of its 3rd month of flowering (early May to August) and its still got more buds.
Pseudonyms - lots
Habitat - Mexico
Max Size - 3 x 3
Flower - yellow, white or pink
Flower Size - 0.8 x 0.8
Clumps - yes
Mammillaria (crinita) duweii same plant in flower
(note the thick milky white central spines)
This one was a mystery to me for a while, until I noticed that the radial spination was identical to the duweii, and I now believe it to be a variation without the central spine
Mammillaria crassior (came
from the same source as the
coryphantha - and hence in a
recovering phase)
Pseudonyms - spinosissima
Habitat - Mexico
Max Size - 4 x 2
Flower - yellow, white or pink
Flower Size - 0.8 x 0.8
Clumps - no
Mammillaria decipiens
Pseudonyms - birds nest pincushion
Habitat - Mexico
Max Size - 4 x 2
Flower - white to pale yellow
Flower Size - 0.7 x 0.7
Clumps - yes
Mammillaria elongata - red spines with white spines
Habitat - Mexico
Max Size - 4 x 1
Flower - yellow or pink
Flower Size - 0.4 x 0.4
Clumps - yes
Mammillaria geminispina
Habitat - Mexico
Max Size - 7 x 3
Flower - pink
Flower Size - 0.3 x 0.3
Clumps - yes
Mammillaria gilensis
Pseudonyms - crinita
Habitat - Mexico
Max Size - 3 x 3
Flower - white-pink
Flower Size - 0.8 x 0.8
Clumps - yes
We've never seen a cricket in our garden... until last week when one seemed to take a particular fancy to our Mammillaria Gracilis
Pseudonyms - vetula
Habitat - Mexico
Max Size - 4 x 1
Flower - white
Flower Size - 0.4 x 0.4
Clumps - yes
Mammillaria glassii
Habitat - Mexico
Max Size - 3.5 x 3.5
Flower - pink
Flower Size - 0.6 x 0.9
Clumps -
Mammillaria hahniana
Mammillaria hamiltonhoytae
Mammillaria (heyderi) hemisphaerica
Habitat - Mexico, Texas, Arizona
Max Size - 2 x 4.5
Flower - cream or white
Flower Size - 0.6 x 0.9
Clumps - no
Mammillaria klissingiana
Habitat - Mexico
Max Size - 6 x 3.5
Flower - pink
Flower Size - 0.4 x 0.4
Clumps - can branch basally (as the above one)