Cactus e succulente

[ibiseremita]

 

[ibiseremita]

 

[cactus]

In realtà più che sinonimo si tratterebbe di un vero e proprio duplicato.

Riporto quanto dice Pilbeam a riguardo:

"It should be mentioned here that the name preferred
by Unger is F. piliferus, and he quotes the description
of it as such according to Lemaire ex Ehrenberg in
1848, which predates the first valid description of it as
Echinocactus pilosus by two years. But Taylor rejects
this name as inadequately typified, and points out that
Unger has not provided a neotype, "an essential
prerequisite for the certain application of names based
only on descriptions". In Ihe light of this, and the fact
that it is the more widely used name, F. pilosus is favoured here.
This name also has precedence over F. stainesii,
which is sometimes used as an allernative
name under this species, but which was not validated
as such until 1922. F. stainesii is also sometimes
applied (quite incorrectly) to variants of F. pilosus
lacking hair-like radial spines: compare Britton &
Rose's description of F. stainesii as differing from F.
pi!osus in having more distant ribs, the areoles more
widely separated, the spines duller coloured, more
numerous, somewhat curved, two of them decidedly
flattened, and the hairs white!"

L'autore considera piliferus e stainesii duplicati, anche se qualcuno ritiene il secondo come variante di pilosus, in quanto Britton ne fece una descrizione di poco diversa.
Per la pianta in foto, non potendo nemmeno valutarne le sfumature del caso, pilosus è perfetto.

Gli esperti ce lo racconteranno meglio.