Isoetes lacustris
EOL Text
Isoetes lacustris L.:
Canada (North America)
United States (North America)
Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
- Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
- Flora of North America Editorial Committee, e. 1993. Pteridophytes and Gymnosperms. 2: i–xvi, 1–475. In Fl. N. Amer. Oxford University Press, New York.
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| Rights holder/Author | Tropicos.org Copyright (c) Missouri Botanical Garden |
| Source | http://www.tropicos.org/Name/26602046?tab=distribution |
Comments: Accepted as a distinct species by Kartesz (1994 checklist), but included within Isoetes lacustris by Kartesz (1999) and by Flora North America (1993).
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| Rights holder/Author | NatureServe |
| Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Isoetes+macrospora |
Canada
Origin: Unknown/Undetermined
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
United States
Origin: Unknown/Undetermined
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
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| Rights holder/Author | NatureServe |
| Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Isoetes+macrospora |
Plants aquatic, submerged. Rootstock nearly globose, 2-lobed. Leaves evergreen, dark green to reddish green, pala brown toward base, spirally arranged, to 25 cm, rigid, abruptly tapering to tip. Velum covering less than 1/2 of sporangium. Sporangium wall ± brown-streaked. Megaspores white, 55--750 μm diam., cristate to reticulate with branching to anastomosing ridges; girdle densely papillate or rarely smooth. Microspores gray in mass, 33--45 μm, paillose. 2n = 110.
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| Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
| Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250076848 |
Isoëtes hieroglyphica A. A. Eaton; I. macrospora Durieu
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| Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
| Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250076848 |
Isotype for Isoetes hieroglyphica A.A. Eaton
Catalog Number: US 828464
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Verified from the card file of type specimens
Preparation: Pressed specimen
Collector(s): C. G. Pringle
Year Collected: 1880
Locality: St. Francis lakes between Maine and Canada., Maine, United States, North America
- Isotype: Eaton, A. A. 1900. Fernwort Papers. 10.
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| Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
| Source | http://collections.mnh.si.edu/search/botany/?irn=10197142 |
Type collection for Isoetes hieroglyphica A.A. Eaton
Catalog Number: US 593993
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Verified from the card file of type specimens
Preparation: Pressed specimen
Collector(s): C. G. Pringle
Year Collected: 1880
Locality: St. Francis lakes between Maine and Canada., Maine, United States, North America
- Type collection: Eaton, A. A. 1900. Fernwort Papers. 10.
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| Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
| Source | http://collections.mnh.si.edu/search/botany/?irn=2135774 |
Spores mature late summer. Cool, oligotrophic, slightly acidic lakes and streams; Greenland; Man., N.B., Nfld., N.S., Ont., P.E.I. Que., Sask.; Conn.; Maine, Mass., Mich., Minn., N.H., N.Y., R.I., Tenn., Vt., Va., Wis.; n,c Europe.
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| Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
| Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250076848 |
The following is a representative barcode sequence, the centroid of all available sequences for this species.
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 6
Species With Barcodes: 1