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We present observations of distinct UV spectral properties at differentlocations during an atypical X-shaped flare (SOL2014-11-09T15:32) observed bythe Interface Region Imaging Spectrograph (IRIS). In this flare, fourchromospheric ribbons appear and converge at an X-point where a separator isanchored. Above the X-point, two sets of non-coplanar coronal loops approachlaterally and reconnect at the separator. The IRIS slit was located close tothe X-point, cutting across some of the flare ribbons and loops. Near thelocation of the separator, the Si IV 1402.77 A line exhibits significantlybroadened line wings extending to 200 km/s but an unshifted line core. Thesespectral features suggest the presence of bidirectional flows possibly relatedto the separator reconnection. While at the flare ribbons, the hot Fe XXI1354.08 A line shows blueshifts and the cool Si IV 1402.77 A, C II 1335.71 A,and Mg II 2803.52 A lines show evident redshifts up to a velocity of 80 km/s,which are consistent with the scenario of chromosphericevaporation/condensation.

Spectroscopic Observations of Magnetic Reconnection and Chromospheric Evaporation in an X-shaped Solar Flare