Petiole grooved or flattened adaxially in distal portion; rachis glabrous or with a few widely scattered hairs; pinnae completely glabrous; largest ultimate segments (excluding terminal pinnae) usually less than 18 mm; spores usually 39–45 µm diam. 2n = 58.

Phenology: Sporulating summer–fall.
Habitat: Rocky slopes and ledges on igneous substrates
Elevation: 2200–2600 m

Distribution

• Generated Map
• Legacy Map

Tex., Mexico, Central America, South America, Pacific Islands (Hawaii).

Discussion

In the flora, this subspecies is known only from the Chisos Mountains in western Texas.

Selected References

None.

Lower Taxa

None.