In a message dated 9/8/2005 3:04:20 PM Eastern Standard Time,
writes:

I've been pondering mutations in conifers recently


If the original tree planted was a cultivar (and in this case it would
appear both are) then the variant growth is a revert to the species. Frequently
cultivars will revert for no apparent reason, but sometimes it can attributed
to stress of some sort.
Extra low temps, physical damage, drought, or just poor care.
Billy on the Florida Space Coast

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