A tree grows in San Francisco no longer, but not before a team of tree surgeons and a small group of neighbors began mixing it up in the middle of 25th Street on Wednesday and four police officers had to be summoned to restore order. At times, the name calling and nasty language seemed capable of drowning out the roar of the chain saw. The dispute involved a 45-foot-tall valley oak in the front yard of a small apartment complex on 25th just west of Potrero Avenue. Months ago, the landlord had sought approval to remove it, saying it leaned...