672117 Draba subcapitata Simmons
Distribution
Svalbard - Franz Joseph Land: Frequent
Polar Ural - Novaya Zemlya: Scattered
Yamal - Gydan: Scattered
Taimyr - Severnaya Zemlya: Frequent
Anabar - Onenyo: Scattered
Kharaulakh: Scattered
Yana - Kolyma: Scattered
West Chukotka: Scattered
Wrangel Island: Frequent
East Chukotka: Rare
Northern Alaska - Yukon: Rare
Central Canada: Frequent
Hudson Bay - Labrador: Scattered
Ellesmere Island: Frequent
Western Greenland: Scattered
Eastern Greenland: Frequent
Polar desert: Frequent
Northern arctic Tundra: Frequent
Mid Arctic Tundra: Frequent
Southern Arcti Tundra: Frequent
Shrub Tundra: Scattered
Bordering boreal or alpine areas: Rare
- Simmons, Vasc. Pl. Ellesmereland: 87 (1906). Lectotype (O!): Canada: Nunavut, Ellesmere Island, "ad litus orientale sinus Goose Fjord Ellesmerelandiae meridionalis, Yellow Hill", 23. Aug. 1901, leg. H.G. Simmons 3591. See notes.
2n=
16 (2x). - Europe (N), Far East (N), Canada, Greenland. - Several reports. Diploid in FCM, Grundt et al. (2005b; all major regions).
Geography: Circumpolar: NOR RUS SIB RFE ALA CAN GRL.
Notes: Grundt and Elven: In northwestern Europe, Draba subcapitata is common in Svalbard. It is present also in high mountains in northern Scandinavia (Sweden and Norway) but does not reach the Arctic.
Mulligan has annotated the specimen above as lectotype of the name D. subcapitata. We have not found any relevant publication. It does not matter much, as the meaning of this Simmons name is unambiguous.
The affinity of D. subcapitata has been disputed. Tolmachev assigned it to series Pilosae, whereas he assigned D. fladnizensis to series Lacteae. Petrovsky commented that D. subcapitata should be assigned to series Oblongatae ("Micropetalae"). However, recent investigations of morphology, isoenzymes, and RAPDs (Scheen et al. 1999, 2002) and sequencing of several genes (Grundt et al. 2004) prove a close relationship with D. fladnizensis and also with the central Asian D. altaica Bunge (this name was applied to the arctic plants before Simmons' publication of D. subcapitata). If we apply series, these three species should be included in the same one.
Higher Taxa
- Draba [6721,genus]