2) did the ancestral form or COR "loop back" on itseld viz. the australian aponogetons. That is assume COR (2n=34) originated in thailand then spread to borneo then sumartra/west malaya. we can't asume radiation is unidirection so if COR reached Borneo from Sumatra but by then both forms had eovlved a bit and for wehat ebver reason produced a 2N=68 plant - the nominal COR of Borneo then if that plant made it back to thailand then one more helping of 34 chomosomes from an original COR plant there plus the 68 from the bornei plant makes he 105 found in thiland. the 2n=85 COR could be a 2n=68 plant merged with *half* a 2n=24 plant.

3) man as apossible vector for genetic material. pieces of roots stick in boars or take along as decoraiton, food, scrap, what have you. they could survive weeks in a damp salt free place... possible use as medicine may cause human forcing of radiative pressure.

known by the name Ati-udayan. In Ceylon, this name was supposed to indicate Lagenandra lancifolia Thw., while in Indian medical books it was said to be applied to both Lagenandra lancifolia and a Cryptocoryne. As Lagenandra lancifolia is a Ceylon endemic, it would appear that the latter statement combines both Indian and Ceylon information. The name Ati-udayan was recorded by Moon for a Ceylon plant which he referred to Arum minutum Willd. Moon's plant has been taken to be Lagenandra lancifolia Thwaites, though I am not aware whether his specimen is in existence. Consequently, Ceylon marsh plants for which the name Ati-udayan has been given by the villager, have, if not in flower, been assigned to Lagenandra lancifolia. For many years, it his been customary to maintain, in the collection of marsh and water plants in the Royal Botanic Gardens, Peradeniya, a pot of plants, labelled Lagenandra lancifolia, but the plants were not observed to flower under those conditions. On making enquiries, Mr. van Buuren found that they died out periodically, a fresh supply being then obtained from a neighbouring village, and a visit to the stock locality resulted in the discovery of the flowers, which showed that the plant was Cryptocoryne. Subsequently, specimens of Ati-udayan were obtained from different localities in Ceylon, and these all proved to be Cryptocoryne.

http://crypts.home.xs4all.nl/Cryptocoryne/Botanical/Documents/Petch/petch1928.pdf
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4) Can you graft a rootstock? That is, cut a large rhizome in two. now prepare a graft and join it back together. Does it heal and grow? Now try this with two seperate species. Does that grow? What plants emerge. Now repeat that but get the middle part to grow whwre the graft is and kill of the rest. if it possible to get a hybrid or perhaps triploid or quadraploid plant if it grows from the region o fthe rhizome where the graft was. this gets interesting if the rhizome is a gametophyte and the thallus a sporophyte.

5) whach came first, the root or the plant? Did they evolve from other plants, or did they evolve as a rhizome that at some point began sprouting?

6) "Failure of meiotic reduction during gametogenesis is widely acknowledged to be the main mode of polyploid formation. To get insight into its role in the dynamics of polyploidy generation under natural conditions, and coexistence of several ploidy levels, we developed a general gametic model for diploid-polyploid systems. This model predicts equilibrium ploidy frequencies as functions of several parameters, namely the unreduced gamete proportions and fertilities of higher ploidy plants. We used data on field ploidy frequencies for 39 presumably autopolyploid plant species/populations to infer numerical values of the model parameters (either analytically or using an optimization procedure). With the exception of a few species, the model fit was very high. The estimated proportions of unreduced gametes (median of 0.0089) matched published estimates well. Our results imply that conditions for cytotype coexistence in natural populations are likely to be less restrictive than previously assumed. In addition, rather simple models show sufficiently rich behaviour to explain the prevalence of polyploids among flowering plants."