notes to the november 2010 seed distribution
by Bill Maddams
last but not least, m.silvatica is one of a number of new species created by Werner Reppanhagen for the variants of m.spinosissima and its allies.
he compares and contrasts it with m.crassior, which is not a great help to those of us who profit from visual axamination rather than written description, because this latter is also not particulary common in cultivation.
writers with a more conservative wiew subsume m.silvatica beneath m.nunezii but regard m.crassior as a subspecies of m.spinosissima and David Hunt, in so doing, has renamed it m.spinosissima ssp. tepoxtlana, which is very confusing.
however, back to what of interest for most of us, and with m.silvatica it is mostly the spination.
the glassy white radial spines largely obscure the tubercles and provide an excellent back ground for the central spines, usually four in number.
the most prominent of these is the lowest, which can reach an inch in lenght and is often hooked. these central spines are deep reddish-brown.
my well established plant, which probably came from Reppenhagen seed via the late Sydney Woolcock, fits the description well, except that the central spines are somewhat weaker, but still very prominent.
it flowered during july this year, with the typical carmine hue of the spinosissima group.
i recommend REP 1603 unreservedly.
journal of the mammillaria society
mammillaria silvatica REPPENHAGEN
based on REP 1603 from los cerritos, jalisco, mexico
Reppenhagen compares this species with m.crassior
Reppenhagen, the latter in brackets:
body simple, globose to elongate to 65mm wide and 90mm high
axils with wool and isolated bristels(with white wool)
radial spines 19/24
central spines 2/5 mostly 4 6/20mm long, acicular, upper and lower often hooked
REP 1603 in Antonio Gandolfo collection - it is different from whath i have found on web.
REP 1603 of a.gandolfo collection
it seems to me near m.nunezii
i have found this on web
three plants that differs each other.
thanks for your help to understand where the mistake is.....