| Pteridophyte | Literature for Athyrium microphyllum
Palmer Palmer, 2003. |
| Athyriaceae | Bibliography |
| Athyrium microphyllum | |
Common name(s): `akolea |
| General Information | ||
|---|---|---|
| Distribution | Hawaiian Islands.In the Hawaiian Islands, endemic to Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i. |
|
| Habitat | Mesic to wet forests | |
| Elevation | 500-2320 m |
|
| Habit |
Terrestrial, medium-sized; rhizomes forming small caudices, erect, 15-30 cm tall. |
|
| Leaves |
Fronds herbaceous, 25-90 cm long, forming rosettes at tips of rhizomes; stipe straw-colored to pale brown, base thickened, scales at bases sparse, linear-lanceolate, reddish brown; blade 3-pinnate-pinnatifid to 4-pinnate, ovate or ovate-oblong, dark green; pinnae alternate, stalked; costae and costules bearing short, white, fleshy, translucent spines, up to 1 mm long, at bases on adaxial surface; ultimate segments sessile to short-stalked, up to 2 mm long, 0.3-1.5 mm wide, bases wedge-shaped, uneven-sided with 2 to several deeply cut, toothed lobes. |
|
| Sori |
Sori short, linear, 1-2 mm long, at base of each ultimate segment close to midribs and sinuses, on only one side o veins; indusia firm, opening toward costules. |
|
| Notes |
Greek mikros, small, + phyllon, leaf, in reference to the small ultimate segments. |
|
| Contributor |
Nancy Khan |