Much ado about nothing. You people really need to get off the cultivar==single plant mindset.
Nowhere in the description of the plants is the word cultivar used. The name should not be in single quotes unless a description has been published and also registered and accepted with the appropriate ICRA (International Cultivar Registration Authority, for carnivorous plants the ICPS). That it is in single quotes is probably just an error.
On the same website Dana's Delight and S. readii are also in single quotes. Dana's Delight was never registered and S. readii is a natural hybrid as well as naming rules for cultivars excludes the use of Latin.
These are common errors which even I have made from time to time.
I see no intent to deceive rather an misunderstanding as to what constitutes a carnivorous plant cultivar. The Cultivated Plant Code (ICNP) setup by the ISHS (International Society of Horticultural Science) do not restrict cultivars to genetically identical plants (single plant). Nor do the rules restrict cultivars to hybrids:
Thus there are registered cultivars that can be reproduced by seed such as Sarracenia 'Hurricane Creek Ridge', Sarracenia minor 'Okee Giant', Drosera 'Emerald's Envy', Drosera 'Charles Darwin', or Drosera 'Hawaii'.DO I HAVE A NEW CULTIVAR?
You have a new cultivar and you wish to name it. First check that you do actually have a cultivar. A single plant is not a cultivar: a cultivar is a group of individual plants which collectively is distinct from any other, which is uniform in its overall appearance and which remains stable in its attributes. Do not attempt to name a cultivar until you have a number of individuals that are uniform and stable. Now convince yourself that your cultivar is really worth naming; there is no point in going through the process of naming your cultivar if it is not an improvement on others.
There are different sorts of cultivar ranging from clones, which should be genetically identical, to tightly controlled seed-raised cultivars such as F1 hybrids. Article 2 of the Code describes some of the different kinds of cultivar.
The only way you can check if your cultivar is new and distinct is by comparing it with existing cultivars. Your new cultivar must be distinguishable from others that exist or have existed. (emphasis mine)
Always read the published description of a registered cultivar. It will usually clearly state whether or not a cultivar should be propagated only vegetatively or through tissue culture. The description will also note if a percentage of seed progeny will not maintain the cultivar's unique characteristics - in these cases only the plants that have the unique characteristics should be considered that cultivar (e.g. S. 'Hurricane Creek White' and D. 'Emerald's Envy').
And as Clue points out, under a Grex system which takes into account the genetic heritage of plants, a Grex name applies to all the seed offspring. Both Peter D'Amato and Barry Rice are big proponents of a Grex system for Sarracenia.
If you still have issues on the rules for cultivars I suggest you take them up with Jan Schlauer who is in charge of the ICRA for Carnivorous Plants or the ISHS. Contact information can be found below.
International Society of Horticultural Science ICRAs
How to Name a Cultivar
ICRA for Carnivorous Plants
International Code of Nomenclature for Cultivated Plants
"Cultivated Plant Code" or ICNCP
Registered Cultivars of Carnivorous Plants
Carnivorous Plant Database