| Pteridophyte | Literature for Psilotum nudum
Flora of Australia vol. 48. 1998; Lorence & Wagner, 2019. |
| Psilotaceae | Bibliography |
| Psilotum nudum | |
Common name(s): `o`o moa, moa, moa nahele, pipi, upright whiskfern |
| General Information | ||
|---|---|---|
| Distribution | Widespread in the tropics and subtropics.In the Hawaiian Islands, indigenous to Midway, Ni`ihau, Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i. |
|
| Habitat | Rocks, lava flows, and many urban habitats | |
| Elevation | 0-1200 m |
|
| Habit |
Epiphytic, epipetric, or occasionally terrestrial. Rhizomes intricately branching, creeping, but often clumped or knotted, covered with short brown rhizoidal hairs. |
|
| Leaves |
Aerial shoots erect, firm or sometimes flaccid in shaded situations, branched to 4-5 times in different planes in the distal parts, 10-85 cm long; branches green, prominently 3-7-ribbed, subterete in cross-section, to 4.5 mm in diameter, stomata restricted to furrows between ribs; sterile leaves restricted to ribs, subspiral, 1-2.5 mm long, terete, pale yellow, translucent towards the tips. |
|
| Sori |
Synangia 1.5-2 mm long, 2-2.5 mm wide, (2)3-lobed. |
|
| Spores |
2n = 104 (NZ), 156, 208 (India). |
|
| Notes |
Latine nudus, bare, naked, alluding to the naked nature of the stems. |
|
| Contributor |
David Lorence, co-author K. R. Wood |
