Isoetes occidentalis

Isoetes occidentalis

Taxonavigation

Taxonavigation: Isoetales
Superregnum: Eukaryota Regnum: Plantae Divisio: Tracheophyta Divisio: Lycopodiophyta Classis: Lycopodiopsida Subclassis: Isoetidae Ordo: Isoetales

Familia: Isoetaceae
Genus: Isoetes
Species: Isoetes occidentalis

Name

Isoetes occidentalis L.F.Hend., Bull. Torrey Bot. Club 27: 358 (1900).

• Type: United States, Idaho, Lake Coeur d'Alene, August–Sept. 1897. Henderson No. 4786.

Synonyms

• Heterotypic
  • Isoetes echinospora var. flettii A.A.Eaton, Fern Bull. 13: 51 (1905).
    • Isoetes echinospora subsp. flettii (A.A.Eaton) Piper & Beattie, Fl. N.W. Coast: 16 (1915).
    • Isoetes echinospora f. flettii (A.A.Eaton) Clute, Fern Bull. 16: 55 (1908).
    • Isoetes flettii (A.A.Eaton) N.Pfeiff., Ann. Missouri Bot. Gard. 9(2): 186 (1922).
    • Isoetes maritima var. flettii (A.A.Eaton) C.F.Reed, Amer. Fern J. 35: 85 (1945).
  • Isoetes lacustris var. paupercula Engelm., Trans. Acad. Sci. St. Louis 4: 377 (1882).
    • Isoetes lacustris subsp. paupercula (Engelm.) Feilberg, Nordic J. Bot. 4: 155 (1984). DOI: 10.1111/j.1756-1051.1984.tb01483.x
    • Isoetes macrospora f. paupercula (Engelm.) Clute, Fern Bull. 16: 56 (1908).
    • Isoetes paupercula (Engelm.) A.A.Eaton, Proc. U.S. Nat. Mus. 23(1226): 649 (1901).
  • Isoetes piperi A.A.Eaton, Fern Bull. 13: 51 (1905).
    • Isoetes piperi A.A.Eaton, Fern Bull. 11: 85 (1903) nom. nud.
    • Isoetes howellii f. piperi (A.A.Eaton) Clute, Fern Bull. 16: 56 (1908).
    • Isoetes howellii var. piperi (A.A.Eaton) Clute, Fern-Allies 246, 258 (1905).
    • Isoetes occidentalis var. piperi (A.A.Eaton) A.Nelson & J.F.Macbr., Bot. Gaz. 61(1): 30 (1916).

Hybrids

I. × truncata

Distribution

Native distribution areas:
Continental: Northern America Regional: Subarctic America Aleutian Islands, Alaska Regional: Western Canada Alberta, British Columbia Regional: Northwestern U.S.A. Colorado, Idaho, Montana, Oregon, Washington, Wyoming Regional: Southwestern U.S.A. California, Utah. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References

Additional references

• Troìa, A., Pereira, J.B.S., Kim, C. & Taylor, W.C. 2016. The genus Isoetes (Isoetaceae): a provisional checklist of the accepted and unresolved taxa. Phytotaxa 277(2): 101–145. DOI: 10.11646/phytotaxa.277.2.1 ResearchGate Reference page. 

Links

• USDA NRCS PLANTS Profile
• Hassler, M. & Schmitt, B. 2017. World Ferns. Checklist of the Ferns and Lycophytes of the World. Version 7.19 – August 2017. Accessed 10 Sep 2017.

Vernacular names

English: Western Quillwort

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