Isoetes howellii

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Taxonavigation[edit]

Taxonavigation: Isoetales 

Superregnum: Eukaryota
Regnum: Plantae
Divisio: Tracheophyta
Divisio: Lycopodiophyta
Classis: Isoetopsida
Ordo: Isoetales

Familia: Isoetaceae
Genus: Isoetes
Species: Isoetes howellii

Name[edit]

Isoetes howellii Engelm., Trans. Acad. Sci. St. Louis 4: 385. 1882.

  • Typus: U.S.A., Oregon: near The Dalles, June & August 1880, Howell s.n. (Holotypus: MO; isotypi: NY, US).

Synonyms[edit]

  • Heterotypic
    • Isoetes melanopoda var. californica A.A.Eaton in Gilbert, Working List North American Pteridophytes 27. 1901.
      • Typus: Olema, Cal., Mrs. Brandegee & Miss Eastwood (Herb. Eaton, MO, MIN)
      • Isoetes melanopoda f. californica (A.A.Eaton) Clute, Fern-Allies 260. 1905.
    • Isoetes nuda Engelm., Trans. Acad. Sci. St. Louis 4: 385. 1882.
      • Typus: U.S.A., Oregon: near The Dalles, June & August 1880, Howell s.n. (among the specimens of the type collection of Isoetes howellii)
    • Isoetes underwoodii L.F.Hend., Bot. Gaz. 23: 124. 1897.
      • Type locality: Paradise creek, in and near Moscow, Idaho.

Hybrids[edit]

I. × marensis

Native distribution areas

Display the range areas:
  • Continental: Northern America
    • Regional: Western Canada
      • British Columbia
    • Regional: Northwestern U.S.A.
      • Idaho, Montana, Oregon, Washington
    • Regional: Southwestern U.S.A.
      • California, Utah
    • Regional: Mexico
      • Mexico Northwest (Baja California, Baja California Sur)

References: Brummitt, R.K. 2001. TDGW – World Geographical Scheme for Recording Plant Distributions, 2nd Edition

References[edit]

Vernacular names[edit]

English: Howell's Quillwort