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Blackfoot Quillwort

Isoetes melanopoda Gay & Dur.

Comments

provided by eFloras
Population of Isoëtes melanopoda in New Jersey, North Carolina, South Carolina, Utah, and Virginia are disjunct.

Plants of Isoëtes melanopoda with black leaf bases are typical. Plants without black leaf bases have been called I. melanopoda f. pallida (Engelmann) Fernald. Variation also occurs in megaspore morphology. A collection from Dallas County, Texas, has lustrous black leaf bases and boldly rugulate spores with ridges that occasionally anastomose. In many respects, I. melanopoda is similar to I. howellii.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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Description

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Plants terrestrial or becoming so. Rootstock nearly globose, 2-lobed. Leaves deciduous, bright green, pale to lustrous black toward base, spirally arranged, to 40 cm, pliant, tapering gradually to tip. Velum covering less than 3/4 sporangium. Sporangium wall brown-streaked. Megaspores white, 280--440 μm diam., obscurely rugulate with low ridges, rarely tuberculate or reticulate; girdle obscure. Microspores gray in mass, 20--30 μm, spinulose. 2n = 22.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Habitat & Distribution

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Spores mature in late spring. Noncalcareous soil; meadows, fields, ditches, soil pockets on rock outcrops; Ark., Ga., Ill., Ind., Iowa, Kans., Ky., La., Minn., Miss., Mo., Nebr., N.J., N.C., Okla., S.C., S. Dak., Tenn., Tex., Utah, Va.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 2 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Isoetes melanopoda

provided by wikipedia EN

Isoetes melanopoda is a species of nonflowering vascular plant belonging to the quillworts in the family Isoetaceae. Its common names include: black-footed quillwort, midland quillwort,[2] and prairie quillwort.[3]

Description

Isoetes melanopoda is a grass-like perennial, but often short lived, growing up to 40 cm tall with an ephemeral growth period. The deciduous bright green leaves are linear (quill-like), with black bases. Each mature leaf has a single sporangium, [4] producing both male spores (microspores) and female spores (megaspores).

Isoetes melanopoda has a discontinuous range within the Midwest, Eastern, and Southern states of the US,[5] the populations are often disjunct and often found in uncommon microhabitats.[6] It is listed as an endangered species in Minnesota, where it is found in the southwestern edge of the state growing in shallow seepage pools with water draining from layers of Sioux quartzite or pools formed by rain.[4] The plants grow on rocky outcrops in soil pockets in pools of water or at the edges of pools where soil has accumulated. It is also listed as endangered in the states of Indiana, Iowa, Kentucky, New Jersey, and Tennessee.[5]

References

  1. ^ "Isoetes melanopoda Gay & Durieu". www.worldfloraonline.org. Retrieved 2021-01-16.
  2. ^ "Isoetes melanopoda - Species Page - APA: Alabama Plant Atlas". www.floraofalabama.org. Retrieved 2021-01-16.
  3. ^ "Isoetes melanopoda in Flora of Missouri @ efloras.org". www.efloras.org. Retrieved 2021-01-16.
  4. ^ a b "Isoetes melanopoda : Prairie Quillwort | Rare Species Guide". Minnesota Department of Natural Resources. Retrieved 2021-01-16.
  5. ^ a b "Plants Profile for Isoetes melanopoda (blackfoot quillwort)". plants.usda.gov. Retrieved 2021-01-16.
  6. ^ Barbara Coffin; Lee Pfannmuller (1988). Minnesota's Endangered Flora and Fauna. U of Minnesota Press. p. 102. ISBN 978-0-8166-1689-3.
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Isoetes melanopoda: Brief Summary

provided by wikipedia EN

Isoetes melanopoda is a species of nonflowering vascular plant belonging to the quillworts in the family Isoetaceae. Its common names include: black-footed quillwort, midland quillwort, and prairie quillwort.

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Wikipedia authors and editors
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wikipedia EN