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Theoretical questions (No plant to ID :-)
I've read in several places (can get references if necessary) that oaks
( Quercus spp.) hybridize very easily. If so, wouldn't - over millennia - speciation be lost and all oaks blend to a single homogeneous oak? If hybridization is so easy - what keeps the species apart? How does tell if a particular "wierd" specimen is a hybrid or a new species? Am I expecting botany to be too exact? If DNA analysis was extremely inexpensive (say, $ .10) would botanical taxonomy be void of ambiguity? |
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