Panarctic Flora

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911501 Pachypleurum alpinum Ledeb.

Distribution

Kanin - Pechora: Frequent
Polar Ural - Novaya Zemlya: Frequent
Yamal - Gydan: Frequent
Taimyr - Severnaya Zemlya: Frequent
Anabar - Onenyo: Frequent
Kharaulakh: Frequent
Yana - Kolyma: Rare
West Chukotka: Frequent
South Chukotka: Rare
East Chukotka: Rare
Southern Arcti Tundra: Rare
Shrub Tundra: Frequent
Bordering boreal or alpine areas: Frequent

2n= (1) 22 (2x). - Far East (N). - Gurzenkov and Gorovoy (1971); Zhukova and Petrovsky (1980).
(2) 44 (4x). - Siberia (S). - Rostovtseva (1976).
(3) 54 (ca. 5x). - Russia (N), Siberia. - At least three reports.
Not included: European reports of 2n = 22 referred by Löve and Löve (1975a) under their Pachypleurum alpinum. They synonymized our species with the European Alpine Ligusticum mutellinoides.

Geography: Asian (N/C): RUS SIB RFE.

Notes: Elven and Murray: The relationship between Pachypleurum alpinum and the central European Ligusticum mutellinoides (transferred to Pachypleurum by Holub 1983b) remains to be clarified. Tutin (1968b) considered them one species with the comment: "The Russian populations are sometimes given specific status as L. alpinum ... Plants having the fruit characters of L. alpinum occur sporadically in the Alps; the only reliable distinguishing character of the Russian plants appears to be the somewhat less dissected leaves". We find at least the northern Siberian plants to differ from the Alpine ones.

Higher Taxa