Home – Home – Jornals – Flora and Vegetation of Asian Russia 2023 number 3

Two new taxa, Myosotis pospelovae O.D. Nikif. and M. nemorosa subsp. putoranica O.D. Nikif. from section Myosotis, which are listed in “Flora Putorana”, as M. scorpioides L. var. pusilla Meinsh. and M. scorpioides var. nemorosa (Besser) Schmalh are described from the the Krasnoyarsk Territory. Both taxa differ significantly from the known species of the type section in the presence of thickened rhizomes with numerous flower-bearing shoots, the pubescence of the leaves, and the shape and size of the eremocarps. M. pospelovae relatives M. nemorosa Besser, plants 5-10 cm high, stems shiny, without pubescence, crowded in a clump, leaves bare on underside. M. nemorosa subsp. putoranica is more similar to M. nemorosa in its leaf and stem pubescence, differing from the latter in its multi-stemmed life form and leaf pubescence. It differs from M. palustris in the shiny stems and in the presence of downward pointing bristly hairs on the lower surface of the leaves and in the number of chromosomes 2n = 22, instead of 2n = 44, 66. The drawings show the peculiarities of the pubescence of the leaf plate, as well as the shape and size of the eremocarps in comparison with the related species M. palustris and M. nemorosa. The issues of the priority name of the variety of the Linnaean species M. scorpioides β-palustris, as well as the relationship of M. nemorosa subsp. putoranica with the European species M. nemorosa. For new taxa, a list of studied specimens (paratypes) and photographs of type specimens are given.