Eremopteris Artemisiaephyllioides And Asplenium Ruta Muraria

[docdutronc]

These both ferns belong to two different groups, one Eremopteris artemisiaephyllioides fossil date is nearly 300 million years, the other Asplenium ruta muraria our old haunts like the walls and limestone environments, their leaves are very simple similarities chance or evolutionary convergent ?????

[Auspex]

Leaves are such complex organs: solar collector, sugar factory, respiration, sometimes even reproduction.

They must do each of these tasks well; if they do not, their type will not persist. The environmental variables under which they must perform their functions will easily sort the capable from the inadequate; thus I assume that a given set of conditions will have but few optimum solutions. The uncertainty factor here is that there are so many environmental variables (both obvious and hidden) that the combinations can practically be infinite.

[tracer]

i won't venture an opinion on causation, but i will say that i am fascinated by such things and appreciate your posting the observation.

[mommabetts]

Interesting comparisons, thanks for sharing. Those are very nice.