Difference between revisions of "Ophioglossum californicum"
Ber. Deutsch. Bot. Ges. 1: 355. 1883.
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|elevation=50-300 m | |elevation=50-300 m | ||
|distribution=Calif.;Mexico. | |distribution=Calif.;Mexico. | ||
| − | |discussion=<p>Ophioglossum californicum differs from the Old World species O. lusitanicum in that O. lusitanicum has a narrowly linear to linear-oblanceolate trophophore that is 1/4 to 1/2 as wide as long; O. lusitanicum also has a much simpler venation and usually lacks an apiculum.</p> | + | |discussion=<p><i>Ophioglossum californicum</i> differs from the Old World species O. lusitanicum in that O. lusitanicum has a narrowly linear to linear-oblanceolate trophophore that is 1/4 to 1/2 as wide as long; O. lusitanicum also has a much simpler venation and usually lacks an apiculum.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1883 | |publication year=1883 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_54.xml |
|genus=Ophioglossum | |genus=Ophioglossum | ||
|species=Ophioglossum californicum | |species=Ophioglossum californicum | ||
Revision as of 15:49, 18 September 2019
Roots to 16 per plant, pale brown, 0.5-1 mm diam., producing proliferations. Stem upright, to 1.6 cm, 5mm diam., commonly 2 leaves per stem. Trophophore stalk 0-1.8cm, to 2.5 times length of trophophore blade. Trophophore blade erect to spreading, commonly ± folded when alive, green, dull, without pale central band when dried, to 4.3 × 1 cm (rarely 0.4 × 0.3 mm), herbaceous, thick, gradually tapering to base, apex attenuate; venation complex-reticulate, with numerous parallel narrow areoles, each with 1-several included veinlets. Sporophores arising near ground level, 1-2.5 times length of trophophore; sporangial clusters 8-15 × 1-3 mm, with 8-15 pairs of sporangia, apiculum 0.3-1 mm.
Phenology: Leaves appearing in late winter and early spring; apparently absent during dry years.
Habitat: Open grassy fields and prairies
Elevation: 50-300 m
Distribution
Calif., Mexico.
Discussion
Ophioglossum californicum differs from the Old World species O. lusitanicum in that O. lusitanicum has a narrowly linear to linear-oblanceolate trophophore that is 1/4 to 1/2 as wide as long; O. lusitanicum also has a much simpler venation and usually lacks an apiculum.
Selected References
None.