| Tephroseris lenensis (Schischk.) Holub | |
| Publ. & Syn. | Holub, Folia Geobot. Phytotax. 11: 82 (1976). - Senecio lenensis Schischk., Fl. URSS 26: 884, 758 (1961). Described from Yakutia (Siberia). |
| Chromosomes | (1) 46-48 48 (2x, x = 24). - Europe (C), Russia (N, S), Siberia (N, S), Far East (N). - Numerous reports. (2) 64 (4x, x = 16). - Europe (Slovakia). - Májovský et al. (1970); Váchová (1970). Zhukova and Petrovsky (1987b) assigned the number of 2n = 48 to Senecio integrifolius, that of 2n = ca. 80 to S. tundricola. As seen from the numbers above, 2n = ca. 48 is known from a wide range including central Europe and 2n = 64 from central Europe. Not included: Reports of the higher numbers of 2n = 72, 90, and 96 from the northern Russian and Siberian areas have been transferred to Tephroseris tundricola. A report of 2n = 18 from the Caucasus (Magulaev 1982). Such low-ploid counts are otherwise not reported for this genus (note the American assumption of x = 24). The affinity of the Caucasus plant is uncertain. |
| Geography | Asian (NE): SIB. |
| Distribution | N = F AO = r E = R Kh = r [ key ] |
| Parent taxon | Tephroseris (Rchb.) Rchb. |
| PAF ID | 862805 |