BECERRA-ABSALÓN, Itzel, Jeffrey R. JOHANSEN, Karina OSORIO-SANTOS, & Gustavo MONTEJANO 2020 (Sep. 7) Two new Oculatella (Oculatellaceae, Cyanobacteria) species in soil crusts from tropical semi-arid uplands of México Fottea 20(2): 160-170, 6 figs., 2 tables