| Gentianopsis barbata subsp. raupii (A.E. Porsild) Elven | |
| Publ. & Syn. | Elven, J. Bot. Res. Inst. Texas 2: 442 (2008). - Gentiana raupii A.E. Porsild, Sargentia 4: 60 (1943). Holotype (CAN): Canada: the Northwest Territories, the Mackenzie River between Wrigley and Blackwater River, leg. A.E. Porsild 6571. - Gentianella detonsa subsp. raupii (A.E. Porsild) J.M. Gillett, Ann. Missouri Bot. Gard. 44: 217 (1957). - Gentianopsis raupii (A.E. Porsild) Iltis, Sida 2: 134 (1965). - Gentianopsis detonsa subsp. raupii (A.E. Porsild) Á. Löve & D. Löve, Bot. Not. 128: 517 (1976). |
| Notes | Subspecies raupii occurs mainly along the Mackenzie River. The entire range is within the area assumed covered by the Pleistocene glaciations. This is most likely a plant that at some time (perhaps postglacially) was isolated from the main body of Gentianopsis barbata and subsequently differentiated. It differs in several characters both from the Alaska and Yukon Territory plant (subsp. yukonensis) and from the Mackenzie Coast one (G. richardsonii), see Gillett (1957, 1963) and Scoggan (1979). It most probably deserves rank at least as a major race. Hultén (1968b) accepted Gentiana raupii in northwestern Canada but said that it is "similar to G. barbata, but with fewer stem leaves; calyx rounded at base; corolla tube broadly obconic, the lobes broad, rounded". Also Iltis (1965) accepted it. Bennett: Its age is not necessarily postglacial as several late Pleistocene refugia have been indicated more recently in the area of the Mackenzie River. |
| Chromosomes | (1) ca. 50 (ca. 4x). - Siberia (the Lake Baikal area). - Zuev (1997). (2) ca. 70. - Siberia (S). - Krogulevich (1976b, 1978). (3) 78 (6x). - Russia (E), Siberia (N), Far East (N). - Zhukova et al. (1977); Zhukova and Petrovsky (1977); Löve and Löve (1986a). The report of 2n = ca. 50 may represent a tetraploid at 2n = 52, and the reports of 2n = ca. 70 may represent hexaploids at 2n = 78. The reports referred above and below support x = 13 as the base number of Gentianopsis. Not included: Reports of 2n = 26 and 52 from China (for G. barbata) might belong to related species. |
| Geography | North American (NW): CAN. |
| Distribution | N = S E = R CC = r [ key ] |
| Parent taxon | Gentianopsis barbata (Froel.) Ma |
| PAF ID | 760404b |