RE: [Aroid-l] Names for different forms?

From: "Wilbert Hetterscheid" <hetter at xs4all.nl> on 2007.03.14 at 06:43:47(15411) Hi Brian and Julius, This is one of those subjects that I myself am engaged in professionally, as taxonomist of both plants in the wild and cultivated. Professional taxonomists may consider that identifying a specific variant in nature is useful and in that case they can make use of the classification categories of forma (f.) or varietas (botanical variety; var.). With the growing awareness of morphological dynamics in nature, this practice is slowing down considerably, at least in the "western" countries. This is good because all those var's and f's create more and more names and have a tendency to blurr the evolutionary infraspecific dynamics of groups of organisms. If however somebody selects a single specimen from a species in nature (or anywhere else) because of a striking character and he multiplies it into a group of plants that follows the prerequisites of Distinction (distinguishable from all other named selections of the species), Uniformity (the groups of plants to be named is uniform throughout) and Stability (the characteristics of the group remain after several cycles of propagation) (= DUS-norm), then the group may be considered a cultivar (cultivated variety) and named, registered and marketed as such. Also in the realm of cultivars and trade it is unwanted to have an explosion of cultivar-names, so if you have just 2 or so plants with a typical character then it is not wise to try and register it with a cultivar name. There is MUCH more to this subject but that would require me to write a book. Cheerio, Wilbert +More > > >>From : Brian Williams > Reply-To : Discussion of aroids > Sent : Tuesday, March 13, 2007 3:20 AM > To : Discussion of aroids > Subject : [Aroid-l] Names for different forms? > > > Dear Brian, > > This all goes back to an issue that to date has not been 'solved' by the > aroid group, and which is a VERY difficult issue, namely the cultivar > names > and the correct registering of these names according to whatever > horticultural rules/laws that may apply. > The IAS has nominated several people over the past several years ( I can > recall at least three) to do something about setting up some sort of > registry to legitimize some or all of these names which are being bantered > about, but to date I think the progress on instituting this system is not > in > place or even being worked on. > I have mentioned on several occasions that when man collectes a certain > plant from nature, he usually selects one which to him is the most > attractive out of several hundred, maybe thousands of other 'less > attractive' specimens he may see in the field. All of these plants, both > the 'attractive' ones AND the less attractive ones are still all > variations > of ONE species. > All I can suggest at this time is that you make a label that explains what > the particular clone or var. of that plant is, for example Philodendron > stenolobum var. narrow/wavy/long leaf, and/or P. stenolobum var. short and > broad leaf, or 'Anthurium warocqueanum var. Murline Lydon minature', vs. > 'Anthu. warocqueanum var. large leaf '. Collection data and collectors > name would be another good bit of information to keep with all wild > collected plants. > Perhaps Derek Burch can give some sort of suggestion or soloution that may > serve you guys better?? > > The Best, > > Julius > >>>I have recently been trying to up grade my data base of names as well as >>>redo all my tags and make sure everything has as much data and >>> information >>>as possible. I have a few questions on forms. I know many plants have >>>several forms of the same species. I would like to know if their are >>> names >>>for these forms or even if the science community really makes note of >>> it? >>>If not would putting a added portion to the name to help ID different >>>forms be possible? If so who should come up with these name? Here are a >>>few for instance off hand that I really think should have some more >>>information. Their seems to be two very different forms of Veitchii one >>>with wider leaves and much larger ripples. Then another form with >>> thinner >>>leaves and a much more rippled effect. I know that naming all slight >>>different forms would not be worth while but for some very noticeable >>>differences it could help people know exactly what they are getting and >>>their seems to be a major price difference in one form compared to the >>>other. Another one that comes to mind is the two forms of Anthurium >>>warocqueanum one that can get 3 to 4 feet long and the smaller slender >>>form with hardly any back lobes. They are very noticeably different yet >>> go >>>by the exact same name. If one was to order the plant under these name >>>they could end up with either form though one form of each is usually >>> much >>>more sought after.<< > _______________________________________________ > Aroid-l mailing list > Aroid-l@gizmoworks.com > http://www.gizmoworks.com/mailman/listinfo/aroid-l > > > _______________________________________________ > Aroid-l mailing list > Aroid-l@gizmoworks.com > http://www.gizmoworks.com/mailman/listinfo/aroid-l > _______________________________________________ Aroid-l mailing list Aroid-l@gizmoworks.com http://www.gizmoworks.com/mailman/listinfo/aroid-l

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