Leiorreuma is identified by certain features. It has apothecia with noticeable sessile opened lirellae. The proper exciple is often thin on the sides but well-developed at the base and appears charred. The hymenium is dotted with small specks, and the spores are pale brown and have thin walls with crosswise septa or are divided into many compartments (muriform). They are not stained by iodine.[2]
^Seavey, F.; Seavey, J.; Gagnon, J.; Guccion, J.; Kaminsky, B.; Pearson, J.; Podaril, A.; Randall, B. (2017). "The lichens of Dagny Johnson Key Largo Hammock Botanical State Park, Key Largo, Florida, USA". Bulletin of the Florida Museum of Natural History. 53 (5): 201–268.
^Poengsungnoen, Vasun; Manoch, Leka; Mongkolsuk, Pachara; Kalb, Klaus (2014). "New species of Graphidaceae from Loei Province, Thailand". Phytotaxa. 189 (1): 255. doi:10.11646/phytotaxa.189.1.18.
^Dubey, Urvashi; Upreti, Dalip K.; Nayaka, Sanjeeva (2010). "A new species of Leiorreuma Eschw. from India". The Lichenologist. 42 (6): 711–713. doi:10.1017/s002428291000040x. S2CID87209802.
^Kashiwadani, Hiroyuki; Nakanishi, Minoru; Miyawaki, Hiromi; Takeshita, Shunji; Ohmura, Yoshihito; Tokizawa, Mika; Moon, Kwang Hee (2012). "Materials for the distribution of Lichens in Japan (19). Leiorreuma yakushimense (M. Nakan.) M. Nakan. & Kashiw. and Siphula decumbens Nyl". Journal of Japanese Botany. 87 (6): 408–411.