Botrychium paradoxum

W. H. Wagner

Amer. Fern J. 71: 24. 1981.

Common names: Paradox moonwort
IllustratedEndemicConservation concern
Treatment appears in FNA Volume 2.

Trophophores converted entirely to second fertile segment, stalk 1/2 length of fertile segment. Sporophores double, 2 per leaf, 1-pinnate, 0.5–4 cm. 2n =180.


Habitat: Sporophores in June to August. Difficult to detect, plants usually hidden under other vegetation, in snowfields, secondary growth pastures
Elevation: 1500–3000 m

Distribution

V2 685-distribution-map.gif

Alta., B.C., Sask., Mont., Utah.

Discussion

The leaf structure of Botrychium paradoxum is uniform and unique. Very rare teratological individuals of other moonwort species may have trophophores partially or wholly transformed into sporophores.

Botrychium × watertonense W.H. Wagner, known only from one locality in western Alberta, is the sterile hybrid of B. hesperium and B. paradoxum. It can be identified by its trophophore pinnae; all are bordered with sporangia. It may reproduce by some unknown mechanism, such as unreduced spores (W.H. Wagner Jr., F. S. Wagner, et al. 1984).

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Botrychium paradoxum"
acute +  and rounded +
Warren H. Wagner Jr. +  and Florence S. Wagner +
W. H. Wagner +
simple +  and 5-pinnate +
4 cm40 mm <br />0.04 m <br /> (25 cm250 mm <br />0.25 m <br />) +
mostly linear +  and oblong +
herbaceous +  and leathery +
0 cm0 mm <br />0 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Paradox moonwort +
Alta. +, B.C. +, Sask. +, Mont. +  and Utah. +
1500–3000 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 />) +
Sporophores in June to August. Difficult to detect, plants usually hidden under other vegetation, in snowfields, secondary growth pastures +
of widely scattered , long , uniseriate hairs +
dentate;lacerate +
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 +
Illustrated +, Endemic +  and Conservation concern +
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 +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1/2 length of fertile segment +
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 paradoxum +
Botrychium subg. Botrychium +
species +
sessile +  and short-stalked +
anastomosing +
pinnate +  and fan +