Wed-Sat: 12-5 p.m., Tue-Thu: 6-9 p.m.

617-522-0000

Now occupying a site once intended for a 7-11, Gallery @ Green Street's white space beckons from within an MBTA stop. Taking the Orange Line all the way out proves rewarding as soon as you ascend the escalators to the art, all of which is made by emerging artists. A committee of nine selects work for each show, and offerings usually feature two or three artists.

Currently in the midst of their annual capital campaign, the gallery is showing 100 works donated by 100 artists, each $100. Most pieces are small format, with a predominance of Paul Caulfield-esque Op-Art canvases. Save up your Dorm Crew earnings to purchase Juliann Cydylo's fanciful "Edwardian Encounter" cutout.

Through Dec. 11: "100 x 100" exhibition preview; sale begins Dec. 11 at 8 p.m.

IN CHINATOWN

ONI GALLERY

84A Kingston St., 5th Floor (T: Chinatown)

Thu: 4-7 p.m., Sat: 12-5 p.m.

617-542-6983

A small but worthy gallery, Oni was founded in 1998 and recently moved next door and five floors up from its original site. Currently showing is "Formula," an exhibition of New York-based artists rounded up by one of Oni's original founders, Cheyney Thompson, who migrated there recently. Thompson's "1839," a series of acrylic paintings of woodbeam-and-brick cross-sections on transparent organza, exposes infrastructural delicacy. Also with Nathan Carter, Daniel Lefcourt, Tim Seiber and Bettina Sellman, whose installation, "the absence of dreaming," encases mute forms in satin.

Through Dec. 20: "Formula" (N.Y.-based artists)