|
|
7b. Woodsia obtusa subsp. occidentalis Windham, Contr. Univ. Michigan Herb. 19: 56. 1993.
Stems short- to long-creeping, individual branches usually 3--5 mm diam. Blade finely cut, 2-pinnate-pinnatifid. Proximal pinnules of lower pinnae usually deeply lobed or pinnatifid. Spores averaging 35--42 µm. 2 n = 76.
Sporulating summer--fall. Cliffs and rocky slopes (rarely terrestrial); found on a variety of substrates but mostly sandstone and granite; 200--500 m; Ark., Kans., Mo., Okla., Tex.
Woodsia obtusa subsp. occidentalis hybridizes with subsp. obtusa sporadically throughout the region of sympatry; the hybrids are sterile triploids with malformed spores.
Related Links (opens in a new window) |
Other Databases
|
|
|
|
|
|
|