According to IRS Publication 969, you are allowed to have both an HSA and an FSA in the same year. HSA contributions are report on your Form 1040, but there are no reporting requirements for contributions to an FSA.
For the HSA: "For 2014, if you have self-only HDHP coverage, you can contribute up to $3,300. If you have family HDHP coverage you can contribute up to $6,550."
For the FSA: "For plan years beginning after December 31, 2012, salary reduction contributions to a health FSA cannot be more than $2,500 a year (or any lower amount set by the plan). This amount is indexed for inflation and may change from year to year."
This link will take you right to the IRS publication.
http://www.irs.gov/pub/irs-pdf/p969.pdf
