Botrychium boreale

J. Milde

Bot. Zeitung 15(51): 880. 1857.

Common names: Northern moonwort
Endemic
Treatment appears in FNA Volume 2.

Trophophore stalk sessile or nearly so; blade shiny green, ovate-deltate, 1–2-pinnate, to 6 cm, fleshy. Pinnae to 6 pairs, ascending, mostly overlapping, distance between 1st and 2d pinnae only slightly greater than between 2d and 3d pairs, basal pinna pair usually considerably larger than adjacent pair, obliquely rhomboidal to oblanceolate-spatulate, mostly shallowly lobed to rarely pinnate, margins entire to very narrowly shallowly crenulate, apex pointed, venation pinnate only at bases of proximal pinnae, otherwise ± like ribs of fan. Sporophores 1–2-pinnate, 1–1.5 times length of trophophore.


Phenology: Leaves appearing in July and August.
Habitat: Dry meadows, south-facing slopes
Elevation: 200–600 m

Discussion

This well-marked northern Eurasian species is best known in Scandinavia, where it occurs most commonly with Botrychium lunaria, with which it occasionally hybridizes.

Selected References

None.

Lower Taxa

None.
... more about "Botrychium boreale"
pointed +, crenulate +  and entire to very +
Warren H. Wagner Jr. +  and Florence S. Wagner +
J. Milde +
usually considerably larger than adjacent pair +
simple +  and 5-pinnate +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +
ovate-deltate +
0 cm0 mm <br />0 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Northern moonwort +
Greenland +
200–600 m +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Dry meadows, south-facing slopes +
of widely scattered , long , uniseriate hairs +
dentate;lacerate +
Leaves appearing in July and August. +
spreading;ascending +
epiphytic +  and terrestrial +
spore-bearing +  and laminate +
photosynthetic +
with long , uniseriate hairs +  and glabrous +
Bot. Zeitung +
flattened +
not fleshy +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
with corky ridges +  and smooth +
list +  and count +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
not proliferous +
sessile +  and short-stalked +
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 +
1-1.5 times length of trophophore +
flattened +
not fleshy +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
unbranched +  and simple +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
tuberculate +  and rugate +
Botrychium boreale +
Botrychium subg. Botrychium +
species +
sessile +  and short-stalked +
nearly +  and sessile +
anastomosing +
pinnate +  and fan +