* Schistidium antarctici (Cardot) L.I. Savicz & Smirnova [Grimmiaceae] Description and iconography Ochyra et al. (2008). Distribution and habitat Endemic to Antarctica, S. antarctici is associated with rocky sites, both dry and wet and exposed or protected (Ochyra et al. 2008). Representatives of this species were found growing on soil in exposed sites in the study area, located only in the coastal region of the island. Comments Sterile plants of this species are distinguished by having closely overlapping leaves in three to four rows, the costa is semi-terete and tristratose below, the leaf margin is bistratose and the leaves lack a hyaline basal margin (Ochyra et al. 2008). * Schistidium antarctici (Cardot) L.I. Savicz & Smirnova [Grimmiaceae] Examined material: Antarctica, Marambio Island, Streamlet La Tradición (64° 13 ′ 45.04 ′′ S; 56°38 ′ 58.84 ′′ W; 7 m. a.s.l.), on rock, 19.1.2022, A. C. Cottet (BCRU 5705).

Published as part of Cottet, Agustina Celeste, Messuti, María Inés, Ansaldo, Martín & Dopchiz, Laura Patricia, 2025, Mosses (Bryophyta) of the north-western region of Marambio (Seymour) Island, Antarctica, pp. 31-38 in Antarctic Science (Cambridge, England) (Cambridge, England) 37 (1) on pages 35-38, DOI: 10.1017/S0954102024000464, http://zenodo.org/record/15816856