Isoetes nuttallii

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Isoetes nuttallii

Apparently Secure (NatureServe)
Scientific classification
Kingdom: Plantae
Division: Lycopodiophyta
Class: Isoetopsida
Order: Isoetales
Family: Isoetaceae
Genus: Isoetes
Species: I. nuttallii
Binomial name
Isoetes nuttallii
A.Braun ex Engelm.
Synonyms
  • Isoetes suksdorfii Baker

Nuttall's quillwort (Isoetes nuttallii) is a species of quillwort, a type of lycopod. It is native to shallow waters and other wet habitats of western North America from British Columbia to California. It produces up to 60 pointed, cylindrical, green to gray-green leaves, each 7 to 17 centimeters long. The velum completely covers the spherical sporangia, which are 5 millimeters long and 1.5 millimeters wide. The ligule is small and triangular. The megaspores are 400 to 500 millimeters in diameter. The microspores, which are spiny and covered in tubercles, are 28 to 31 micrometers long.[1]

References[edit]

  1. ^ Cody, William; Britton, Donald (1989). Ferns and Fern Allies of Canada. Agriculture Canada. 

External links[edit]