Lophozia
ventricosa var. longiflora
(Nees) Macoun is recorded for South Shetland Islands; this is the second report
of the taxon for the Southern Hemisphere. Isopaches bicrenatus (Hoffm.) H.Buch
is reported for the first time from Central America, in Dominican Republic. A
new combination Isopaches pumicicola (Berggr.) Bakalin comb. nov.
is proposed. Tritomaria mexicana Bakalin sp. nov. is described as new to
science. The diagnostic characters of the new species include 2-lobed leaves
with equal to slightly subequal lobes and 1-celled angular gemmae, the
combination unknown in any other member of the genus.