1. Asterella chilensis (Nees & Mont.) A.EvansContributors. P. Drapela, J. R. Flores and G. M. SuarezUruguay. Rivera. Tranquera, 31°09'56.2″S, 55°46'41.0″W, 175 m a.s.l., 27 February 2012, leg. G. S...

1. Afoninia dahurica Ignatova, Goffinet & FedosovContributors. D. Ya. Tubanova and O. D. DugarovaRussia. Republic of Buryatia: Zakamenskiy District, Dzhidinskiy Ridge, about 10 km to SSE of Mikhayl...

1. Anomobryum bavaricum (Warnst.) Holyoak & KӧckingerContributors: G. Ya. Doroshina and I. V. CzernyadjevaRussia: Caucasus, Republic of North Osetiya, canyon of Fiagdon River, 42°58′N, 43°45′E, 820...

Plants in the collection were scattered among other bryophytes, light green, up to 13 mm long and 1.9 mm wide, with intercalary branching.Underleaves were absent and rhizoids were scattered along the ventral surface.The stems were slender, delicate, round in cross-section and 8-9 cells wide with a single layer of quadrangular, slightly thickened cortical cells and thin-walled medullary cells with indistinct trigones.The leaves were succubous, distant to loosely imbricate, oblong-quadrate, 0.55-0.70× 0.60-0.65 mm, with the ventral lobe larger than dorsal lobe and an acute sinus.Leaf margins were usually entire, but occasionally possessed a few, long, unicellular cilia, and laminal cells were thin-walled with distinct trigones.Those at the margin were quadrangular, whilst the median and basal cells were polygonal.Fertile plants not observed.2. Biantheridion undulifolium (Nees) Konstant.& Vilnet