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Re: Anth. tilarenense


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 ...


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

Email: earmag@cybercable.tm.fr

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