| Micranthes nelsoniana subsp. nelsoniana | |
| Publ. & Syn. | Saxifraga microcephala A.P. Khokhr. & Kuvaev, Byull. Moskovsk. Obshch. Isp. Prir., Otd. Biol. 99, 1: 110 (1994). Described from Krasnoyarsk (Siberia). |
| Notes | Zhmylev: Subspecies nelsoniana is characterized by compact inflorescence and pubescent and crenate leaves with less than 15 indentations. However, plants with less compact inflorescence and less pubescent leaves are not rare in the southern parts of the Arctic, which sometimes makes separation from subsp. aestivalis very difficult. |
| Chromosomes | (1) 56. - Far East (Kamtchatka). - Zhukova and Petrovsky (1987a). (2) 60. - Far East (N). - At least three reports. (3) 64. - Far East (West Chukotka). - Zhukova and Petrovsky (1987a). (4) 70. - Siberia (N), Far East (N). - At least five reports. (5) >70. - Siberia (N), Far East (N). - Zhukova and Petrovsky (1987a). (6) 80. - Siberia (N), Far East (N), Alaska. - Several reports, numerous counts. (7) 84. - Siberia (N), Far East (N), Alaska, Canada (NW). - At least five reports. Löve and Löve (1975a) stated this taxon to uniformly have 2n = 80 and omitted reports of other numbers. Brouillet and Elvander (2009a) accepted 2n = ca. 80 and ca. 84. |
| Geography | Asian (N) - amphi-Beringian: RUS SIB RFE ALA CAN. |
| Distribution | N = F AN = f B = R AO = s C = F D = F E = F WI = f YG = s CE = f CS = f UN = r YK = f AW = f Kh = f CW = f Tm = f [ key ] |
| Parent taxon | Micranthes nelsoniana (D. Don) Small |
| PAF ID | 500111a |