Lecania sessilisoraliata is a species of saxicolous (rock-dwelling), crustose lichen in the family Ramalinaceae. It is found on rock outcrops in the mountainous Burdur region of Turkey.
The lichen was formally described as a new species in 2017 by lichenologists André Aptroot and Kenan Yazñcñ. The type specimen was collected by the second author near Esirlik village (Bucak, Burdur) at an altitude of , where it was found growing on calcareous rock. The species is only known to occur in Turkey, usually on limestone. The species epithet refers to the characteristic sessile soralia (i.e., vegetative propagules lacking a stem or stalk and attached to the thallus surface).
The crust-like thallus of Lecania sessilisoraliata is pale olivaceous brown to pale olivaceous green and measures up to in diameter. The crust thickness is greatest at its centre, about 1âÂÂ2 mm. The crust comprises smaller areoles crowded together, each measuring 0.2âÂÂ0.6 mm in diameter. Whitish soralia are raised above the level of the thallus and are sessile; they are largely crowded towards the thallus centre measuring up to 0.8âÂÂ1 mm in diameter. The soredia are granular, each measuring 30âÂÂ50 üm in diameter. The asci contains eight spores and are of the Bacidia-type, with dimensions of 8.5âÂÂ12 by 25.5âÂÂ30 üm. Ascospores are hyaline, ellipsoid in shape with a single septum, and measure 8.5âÂÂ9.8 by 2.4âÂÂ3.1 üm.