Ophioglossum californicum

Prantl

Ber. Deutsch. Bot. Ges. 1: 355. 1883.

Common names: California adder's-tongue
Synonyms: Ophioglossum lusitanicum subsp. californicum (Prantl) R. T. Clausen
Treatment appears in FNA Volume 2.

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

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.

Lower Taxa

None.
... more about "Ophioglossum californicum"
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1 +  and several +
Warren H. Wagner Jr. +  and Florence S. Wagner +
Prantl +
simple +, stalked +  and sessile +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (10 cm100 mm <br />0.1 m <br />) +
lanceolate +  and cordate +
0.3mm;45mm +
0 cm0 mm <br />0 m <br /> (4.3 cm43 mm <br />0.043 m <br />) +
thick;0cm;1cm +
California adder's-tongue +
Calif. +  and Mexico +
50-300 m +
brown +  and white +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
linear +  and round +
Open grassy fields and prairies +
of widely scattered , long , uniseriate hairs +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
3 cm30 mm <br />0.03 m <br /> (0 cm0 mm <br />0 m <br />) +
Leaves appearing in late winter and early spring +  and apparently absent during dry years. +
epiphytic +  and terrestrial +
spore-bearing +  and laminate +
photosynthetic +
with long , uniseriate hairs +  and glabrous +
Ber. Deutsch. Bot. Ges. +
pale-brown +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
proliferous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
thick-walled +  and trilete +
stalked +  and simple +
1-2.5 times length of trophophore +
divided +
unbranched +  and simple +
5 cm50 mm <br />0.05 m <br /> (?) +
0 cm0 mm <br />0 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
0 cm0 mm <br />0 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
tuberculate +  and rugate +
Ophioglossum lusitanicum subsp. californicum +
Ophioglossum californicum +
Ophioglossum +
species +
erect +  and prostrate +
0-2.5 times length of trophophore blade +
0 cm0 mm <br />0 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
anastomosing +
Like (?) +, Arranged (?) +  and Pinnate (?) +