220102 Ruppia cirrhosa (Petagna) Grande
Distribution
Northern Iceland: Rare
Western Alaska: Rare
Shrub Tundra: Rare
Bordering boreal or alpine areas: Scattered
- Grande, Bull. Orto Bot. Regia Univ. Napoli 5: 58 (1918). - Buccaferrea cirrhosa Petagna, Inst. Bot. 2: 1826 (1787). Described from southern Europe.
- Ruppia spiralis L. ex Dumort., Fl. Belg.: 164 (1827). Described from Belgium.
- ?Ruppia occidentalis S. Watson, Proc. Amer. Acad. Arts 25: 138 (1890). Described from British Columbia (Canada). - ?Ruppia cirrhosa subsp. occidentalis (S. Watson) Á. Löve & D. Löve, Taxon 30: 700 (1981).
2n=
40 (4x). - Europe, Canada. - Several reports.
Not included: Reports of 2n = 20 (2x) from Spain and of 2n = 60 (6x) from Germany.
Geography: Cosmopolitan: ICE ALA.
Notes: The western North American Ruppia occidentalis may deserve rank as a race.
Higher Taxa
- Ruppia [2201,genus]