Gyalecta ancistrospora is a species of saxicolous (rock-dwelling), crustose lichen in the family Gyalectaceae.

The type specimen was collected by the first author from Mount Juwang (Cheongsong County, North Gyeongsang Province) at an altitude between 330 and 520 m (1,080 and 1,710 ft); there, it was found growing on siliceous rock.

[1] The lichen has a thin, pale greenish-grey, crust-like thallus that covers areas of up to about 5 cm (2 in).

The ascomata are sessile, and measure 0.3–0.6 mm in diameter; they have a flat, dull orange disc with a pale pinkish-orange margin.

All chemical spot tests are negative, and no lichen products were detected using thin-layer chromatography.