Difference between revisions of "Isoëtes bolanderi"
Amer. Naturalist 8: 214. 1874.
Common names: Bolander's quillwort
Synonyms: Isoëtes bolanderi var. parryi Engelmann Isoëtes californica Engelmann Isoëtes pygmaea
Treatment appears in FNA Volume 2.
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|name=Isoëtes californica | |name=Isoëtes californica | ||
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|genus=Isoëtes | |genus=Isoëtes | ||
|species=Isoëtes bolanderi | |species=Isoëtes bolanderi | ||
Latest revision as of 20:22, 5 November 2020
Plants aquatic, occasionally emergent. Rootstock nearly globose, 2-lobed. Leaves deciduous, bright green, pale brown toward base, spirally arranged, to 20 cm, pliant, abruptly tapering to fine tip. Velum covering less than 1/2 of sporangium. Sporangium wall ± brown-streaked. Megaspores white, 300–500 μm diam., rugulate to tuberculate; girdle obscure. Microspores brown in mass, 20–30 μm, spinulose. 2n = 22.
Phenology: Spores mature late summer.
Habitat: Alpine or subalpine lakes and ponds
Distribution
Alta., B.C., Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.
Discussion
Small plants with leaves less than 2.5 cm have been called Isoëtes bolanderi var. pygmaea (Engelmann) Clute.
Isoëtes bolanderi hybridizes with I. echinospora and I. occidentalis.
Selected References
None.
Lower Taxa
None.