Plants of hybrid origen

Donald Barnett
Mon, 14 Jun 2010 14:38:34 PDT
What would it take to securely lock it away as a species? Lets just say
taxonomists are "few and far between" in my area and I'd like to see this


On Jun 14, 2010 1:27 PM, "Jim McKenney" <> wrote:

Donnie wrote: "Is this enough information to justify calling the plant:

*Opuntia charlestonensis* CLOKEY 1943 instead of just writing the plant off

as another hybrid."

In my opinion, it's not enough information. Here's the first thing which
pops into my mind: how do you know that the hillside with many plants is not
in fact a single plant which has formed a clone over the years? You mention
" The plants were extremely uniform." That's suspicious; you would expect a
hybrid swarm to show variation.

I would leave the decisions about the appropriate ranks for the taxa in
question to the taxonomists.

If I had to put something into print about these in a formal publication, I
would probably say something like this " the existence of the purported
hybrid Opuntia x charlestonensis Clokey suggests that Opuntia phaeacantha
and O. erinacea are in a species-like relationship in the areas where the
purported hybrid occurs."

Since you are not writing a taxonomic treatment, why take up someone else’s
battles? Let people (the taxonomists in particular) sort it out on their own
in accordance with their own views.

Jim McKenney

Montgomery County, Maryland, USA, 39.03871º North,...

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