Pubdate: Fri, 08 Jan 2016 Source: San Francisco Chronicle (CA) Copyright: 2016 Hearst Communications Inc. Contact: http://www.sfgate.com/chronicle/submissions/#1 Website: http://www.sfgate.com/chronicle/ Details: http://www.mapinc.org/media/388 Author: Joe Garofoli PARKER BACKS POT MEASURE Venture capitalist Sean Parker has started backing up his promise to fund a campaign to legalize marijuana for adult recreational use California this year, dropping $500,000 of what is expected to be a multimillion-dollar contribution by the billionaire. The donations by Parker, the first president of Facebook, were among the $1.25 million listed Thursday by the newly formed committee backing the measure. Drug Policy Action contributed $250,000 as did a group that included Weed Maps, an Orange County dispensary-locating startup. There are several measures trying to get on the ballot, the Parker-backed initiative is expected to be the best funded. The secretary of state cleared the measure this week to begin gathering signatures. The measure would impose a 15 percent state excise tax on retail sales of marijuana and a cultivation tax of $9.25 per ounce of flowers and $2.75 per ounce of leaves. It would exempt medical marijuana from some taxes. California regulators predict that it could bring anywhere from hundreds of millions to $1 billion in new revenue to the state. - --- MAP posted-by: Jay Bergstrom