Andreas Fleischmann Posted July 4, 2007 Report Share Posted July 4, 2007 Dear Pygmy Drosera fans, Those of you who want to follow the latest news in Pygmy taxonomy will have to re-label a few of your plants in your collection ;). "A revision of the Drosera omissa/D. nitidula complex (Droseraceae) from south-west Western Australia" by Allen Lowrie and John Conran, Taxon 56 (2), May 2007, p. 533 – 544. The authors are working on Pygmy Drosera taxonomy since a while, here some results of their studies: Drosera omissa is reinstated (Diels' holotype in Berlin) and is found to be conspecific with D. ericksoniae. Therefore D. ericksoniae N.G. Marchant et Lowrie will now have to be treated as a synonym of D. omissa Diels. (And all hybrids involving D. ericksoniae will now have to be called "D. omissa x ..." as a result.). Lowrie's D. nitidula ssp. 'omissa' (or D. nitidula 'var.?' in the CP database) is described as a new species, D. patens Lowrie et Conran. The type of D. nitidula is determined in this paper, D. nitidula ssp. leucostigma and ssp. allantostigma are given specific rank now. I.e. Drosera allantostigma (N.G. Marchant et Lowrie) Lowrie et Conran and Drosera leucostigma (N.G. Marchant et Lowrie) Lowrie et Conran. The paper contains a morphological comparision of all 5 species (including line drawings by Allen Lowrie, identical to those published in Carnivorous Plants of Australia Vol. 2 & 3), SEM photographs of gemmae and seed of all 5 species, chromosome photos and chromosome numbers (all species have 2n = 14). Thus it's now 47 species of pygmy Drosera currently known. Let's see what further investigations in this group of sundews will show ;). All the best, Andreas Quote Link to comment Share on other sites More sharing options...
obregon562 Posted July 4, 2007 Report Share Posted July 4, 2007 Dang! i just lost a D. patens then... very good, and i like all the new and more interesting names! Quote Link to comment Share on other sites More sharing options...
Khelljuhg Posted July 6, 2007 Report Share Posted July 6, 2007 Ugh! How confusing! Quote Link to comment Share on other sites More sharing options...
Sean Spence Posted July 14, 2007 Report Share Posted July 14, 2007 Thus it's now 47 species of pygmy Drosera currently known. Let's see what further investigations in this group of sundews will show ;). and another couple on the way shortly................. Quote Link to comment Share on other sites More sharing options...
Langy Posted July 14, 2007 Report Share Posted July 14, 2007 and another couple on the way shortly................. Come on Sean, tell us what you know, you cant just leave it at that! :wavey: Langy Quote Link to comment Share on other sites More sharing options...
Sean Spence Posted July 15, 2007 Report Share Posted July 15, 2007 Come on Sean, tell us what you know, you cant just leave it at that! I would if I could. Sorry but you'll have to wait a bit. Quote Link to comment Share on other sites More sharing options...
Sean Spence Posted December 1, 2007 Report Share Posted December 1, 2007 See here- http://www.naturebase.net/content/view/951/482/1/1/ The formal description of one of them. I'll see if I can get some permission to post some photos......... Mine are growing OK so far. Quote Link to comment Share on other sites More sharing options...
Matthias Jauernig Posted December 2, 2007 Report Share Posted December 2, 2007 Nice, thank you for the info and the link. Are there more pygmy drosera coming up? Regards, Matthias Quote Link to comment Share on other sites More sharing options...
Sean Spence Posted December 2, 2007 Report Share Posted December 2, 2007 Are there more pygmy drosera coming up? At least one...........but more no doubt. Quote Link to comment Share on other sites More sharing options...
jimscott Posted December 2, 2007 Report Share Posted December 2, 2007 In simple terms, what should I call my omissa, erricksoniae, and allantostigma? Does this also apply to the Lake Carburup or Badgerup or occidentalis? carburup nitidula occidentalis erricksoniae allantostigma Quote Link to comment Share on other sites More sharing options...
Khelljuhg Posted December 3, 2007 Report Share Posted December 3, 2007 (edited) Well, this is the point of the paper: D. ericksoniae --> D. omissa D. nitidula subsp. allantostigma (or D. nitidula subsp. nitidula var. allantostigma according to the Australian gvt) --> D. allantostigma D. nitidula subsp. leucostigma --> D. leucostigma D. nitidula subsp. omissa --> D. patens This is applied to all the hybrids involving these species, as a matter of course. But what is the specific difference between D. nitidula and D. patens? By the way, thanks for the link, Sean! Edited December 3, 2007 by Khelljuhg Quote Link to comment Share on other sites More sharing options...
jimscott Posted December 3, 2007 Report Share Posted December 3, 2007 Looks like Erickson lost out! Quote Link to comment Share on other sites More sharing options...
Siggi_Hartmeyer Posted December 4, 2007 Report Share Posted December 4, 2007 It is a real pitty with this renaming that Rica Ericksons' name gets lost. She was (and still is as I know) the great lady who published the first CP-book particular on Australian CP (Plants of Prey) including a "key to the species", and also on Australian Triggerplants and Orchids. She really deserves that an Australian plant gets her name, not only because "Plants of Prey" was the original which inspired Lowrie to write his books in a similar pattern. Of course Lowrie used two kinds of writing for the species: first D. ericksonae in his Vol. 2 and later D. ericksoniae in his Vol. 3, however D. ericksoniae was mostly used. Surprisingly neither Erickson nor Lowrie/Conran noticed and mentioned that this species is able to move its marginal tentacles very rapidly, they are able to bend in only five seconds. Actually Irmgard and I measured it as the fastest of all pygmy Drosera to which we had access. Quote Link to comment Share on other sites More sharing options...
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