Ignatova, E.A., O.I. Kuznetsova & M.S. Ignatov. 2022. A new species of Drepanocladus
(Bryophyta) from Yakutia
Arctoa (2022) 31: 17–21
doi: 10.15298/arctoa.31.03
Drepanocladus jacuticus is described
as new for science from the Central Yakutia. Superficially
this species is similar to a small Campylium species, with slightly
gradually reflexed leaves. Leaf costae are variable, being double in some
leaves and single in others in a way known in D. polygamus. However this
plant is very small and its alar cells are always small, quadrate, and laminal
cells are much shorter than in that species. Molecular phylogenetic data of the
nuclear ITS region found the position of this species in Drepanocladus-clade,
in the basal position sister to all other species of the genus. It occurs in Central Yakutia, in xeric areas where relatively dry
grasslands form on somewhat salty permafrost soil.