| Potentilla pulviniformis A.P. Khokhr. | |
| Publ. & Syn. | A.P. Khokhr., Bot. Zhurn. 65: 1254 (1980). Holotype (MHA): Russian Far East: the Magadan area, "distr. Omolonensis, 140 km ad austroorientem ab opp. Omolon, in systemate fluminis Kegali, in cursu medio fluminis Avlandja", 05. Aug. 1976, leg. A.P. Khokhrjakov. |
| Notes | Yurtsev: Distinctiveness of this old alpine pulvinate species of northeastern Asia regarding the arctic Potentilla hyparctica got additional confirmation in data of Eriksen and Yurtsev (1999) on the ultrastructure of straight hairs on leaves and petioles, verrucose in P. hyparctica vs. smooth in P. pulviniformis. Elven and Murray: As to the hairs, those in Svalbard and Greenland P. hyparctica are smooth, not verrucose (see Hamre 2000). These plants obviously do not belong to P. pulviniformis in the Russian meaning. They show that there is a variation in hair structure that goes across the taxa proposed by Yurtsev. However, we accept P. pulviniformis on other morphological features. |
| Chromosomes | (1) 42 (6x). - Far East (West Chukotka). - Zhukova and Petrovsky (1985b, two counts). (2) 49 (7x). - Far East (Wrangel Island). - Zhukova and Petrovsky (1985b). (3) 56 (8x). - Far East (South Chukotka). - Zhukova and Petrovsky (1985b). |
| Geography | Asian (N) - Asian Beringian: SIB RFE. |
| Distribution | N = ? C = R D = S E = S WI = r CE = r Kh = r CW = s Tm = r [ key ] |
| Parent taxon | Potentilla L. |
| PAF ID | 641056 |