Re: Anth. tilarenense

From: David Scherberich <earmag at cybercable.tm.fr> on 1999.03.02 at 02:34:19(3087) Neil, it would be also interesting to know the shape and color of berries concerning Anth. tilaranense as well as number of seeds/berry and compare with other members of either Semaeophyllium or Calomystrium ... David +More Neil Carroll wrote: > > Aroiders, I have mulled over this for quite sometime now. I have a problem > with the sectional placement of Anthurium tilarenense. As some know, A. > tilarenense is now placed in sec. Samaeophyllium based on its tri-lobed, > entire leaves. I grow several plants in sec. Samaeophllyium among them are > A. falcatum, A. impolitum,A. madisonianum, A. garagaranum, A. trilobum, and > A. grex-avium. The ONLY characteristic I can find that places this plant in > sec. samaophyllium is the tri-lobed leaf. Everything else about this plant > tells me it belongs in Sec. Calomystrium and the only characteristic that > would exclude it this section. > > What brought my attention to this was the intact, persistant catyphylls.On > none of the above mentioned species in my collection nor in any of the > literature that I have are persistant catyphylls found or mentioned. I also > grow about 25 or more species of sec. Calomystrium so I have living > material on hand to make comparisons. > > Some characters that I observe in A. tilaranense that I think should place > it in sec. Calomystrium: > > Leaves. The general texture of the lamina is closer to the texture of my > calys than my samaeos > Short raphide cells are visable on the upper surface of the blade > ( I think! I might need a lesson on this) > > Inflor. The spath and spadix seem to be closer to calys than to samaeos in > color (white to pale green)and shape and texture > I have made a cross polination between A. tilarenense and A. > veitchii. berries are forming now but will not know if they hybridized or > not, any way the pollination has initiated something. A. veitchii > s infloresence will just die if not pollinated. > > I remember having a problem with the placement of A. amnicola and A. > antioquense in sec. Porphyrochitonium because of their persistent intact > catyphylls and now I see they have been moved to sec. calomystrium. Are > persistant intact catyphylls found on any other species in any other > section than Calomystrium? Are persistant catyphylls a conservative character? > > I am admittadly an armchair guy on this and I would like to have more > literature and maybe a microscope to look at some of these characters more > closely (ie raphide cells, flower structure) > > I noticed that chromosome counts for these two sec. overlap having > being common to both sections. > > I know D. Mansell is working on this with Tom C. wonder what kind of > problems this species might be creating for the section. > > I also know my theory would mess up the keys. > > Any thoughts?? > > Neil Carroll > > -- David Scherberich 3, rue de la Broque 67000 Strasbourg France Email: earmag@cybercable.tm.fr

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