Palmerella

Palmerella is a genus of plants in the family Campanulaceae. It has only one known species, Palmerella debilis, long known by the synonym Lobelia dunnii. It is native to 8 counties in southern California (San Diego, Orange, Riverside, San Bernardino, Los Angeles, Ventura, Santa Barbara and Monterey) plus the northern part of Baja California.[1][2][3][4]

For the prehistoric snail, see Palmerella (gastropod).

Palmerella
Palmerella debilis var. serrata
Blue Canyon Trail
Santa Ynez Mountains
Santa Barbara County
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Campanulaceae
Subfamily: Lobelioideae
Genus: Palmerella
A.Gray
Species:
P. debilis
Binomial name
Palmerella debilis
A.Gray
Synonyms[1]
  • Lobelia dunnii Greene
  • Laurentia debilis (A.Gray) McVaugh
  • Palmerella debilis var. serrata A.Gray in S.Watson & al.
  • Lobelia rothrockii Greene
  • Laurentia debilis var. serrata (A.Gray) McVaugh
  • Lobelia dunnii var. serrata (A.Gray) McVaugh

The oldest name for the plant is Palmerella debilis, coined by Asa Gray in 1876. Greene in 1889 wanted to move the species to the genus Lobelia, but could not use the name Lobelia debilis, because that name had already been used for a different plant by Linnaeus f. in 1782. Hence Greene created the replacement name Lobelia dunnii. More recent publications favor reverting to Gray's older name.[5]

Two subspecies are recognized:[1][5]

  • Palmerella debilis subsp. debilis - Baja California
  • Palmerella debilis subsp. serrata (A.Gray) Lammers - California and Baja California

References
  1. Kew World Checklist of Selected Plant Families
  2. Biota of North America Program, 2013 county distribution map
  3. Gray, Asa. 1876. Palmerella. Proceedings of the American Academy of Arts and Sciences 11: 80–81
  4. Lammers, Thomas G. 2006. Novon 16(1): 72.
  5. Lammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1-675. The Board of Trustees of the Royal Botanic Gardens, Kew.
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