Botrychium gallicomontanum

Farrar & Johnson Groh

Amer. Fern J. 81: 1, figs. 1, 2, 4. 1991.

Common names: Frenchman's Bluff moonwort
Treatment appears in FNA Volume 2.

Trophophore stalk 1–8 mm; blade yellow-green, ovate to oblong-linear, 1-pinnate, to 3 × 0.9 cm, firm, glaucescent. Pinnae to 6 pairs, strongly ascending, well separated, distance between the 1st and 2d pinnae considerably greater than between 2d and 3d pairs, basal pinna pair approximately equal in size and cutting to adjacent pair, fan-shaped to narrowly spatulate, often asymmetric, with distal portion longer than and arching over proximal portion, undivided to tip, rarely 2-cleft, margins entire to irregularly cleft, apex rounded, venation like ribs of fan, midrib absent. Sporophores 2–3-pinnate, 1.5–3 times length of trophophore.


Phenology: Leaves appearing in midspring, dying in summer.
Habitat: Prairies
Elevation: 300 m

Discussion

Botrychium gallicomontanum is known only from one locality in western Minnesota, where it grows with both B. campestre and B. simplex. It is intermediate between them in the spacing, shape, and stalk length of the pinnae. This is one of four moonwort species that commonly produce dense clusters of minute, spheric gemmae at the root bases. This moonwort is probably an allopolyploid of the two associated species.

Of conservation concern.

Selected References

None.

Lower Taxa

None.
rounded +
Warren H. Wagner Jr. +  and Florence S. Wagner +
Farrar & Johnson Groh +
2-cleft +, undivided +  and asymmetric +
simple +  and 5-pinnate +
glaucescent +
yellow-green +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
ovate +  and oblong-linear +
0 cm0 mm <br />0 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Frenchman's Bluff moonwort +
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 />) +
Prairies +
of widely scattered , long , uniseriate hairs +
dentate;lacerate +
entire to irregularly +
Leaves appearing in midspring, dying in summer. +
spreading;ascending +
epiphytic +  and terrestrial +
spore-bearing +  and laminate +
photosynthetic +
with long , uniseriate hairs +  and glabrous +
Amer. Fern J. +
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 +
1.5-3 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 gallicomontanum +
Botrychium subg. Botrychium +
species +
sessile +  and short-stalked +
0.1 cm1 mm <br />0.001 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
anastomosing +
pinnate +  and fan +