familyLygodiaceae
genusLygodium
Show Lower Taxa
Difference between revisions of "Lygodium"
J. Bot. (Schrader) 1800(2): 7, 106. 1801.
Common names: Climbing ferns
Etymology: Greek lygodes, flexible, in reference to the twining rachis
Treatment appears in FNA Volume 2.
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|distribution=Nearly worldwide;mostly tropical regions;a few species in temperate regions;North America;Asia in Japan;s Africa;Pacific Islands in New Zealand. | |distribution=Nearly worldwide;mostly tropical regions;a few species in temperate regions;North America;Asia in Japan;s Africa;Pacific Islands in New Zealand. | ||
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|publication title=J. Bot. (Schrader) | |publication title=J. Bot. (Schrader) | ||
|publication year=1801 | |publication year=1801 | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V2/V2_684.xml |
|genus=Lygodium | |genus=Lygodium | ||
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Revision as of 19:50, 16 December 2019
Plants terrestrial. Stems branched, slender. Leaves often more than several meters, 2-pinnate or more divided, climbing by means of twining rachis; fertile pinnae borne toward apex of fertile leaves. Blades of short, alternate primary pinnae. Pinnules ± entire to palmately or pinnately lobed; fertile and sterile pinnae similar or fertile pinnae greatly contracted.
Distribution
Nearly worldwide, mostly tropical regions, a few species in temperate regions, North America, Asia in Japan, s Africa, Pacific Islands in New Zealand.
Discussion
Species ca. 40 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Pinnules palmately lobed, sterile tissue nearly absent on fertile lobes; petioles borne 1–4 cm apart. | Lygodium palmatum |
| 1 | Pinnules 1-pinnate to palmately lobed, sterile tissue present on fertile lobes; petioles borne less than 1 cm apart. | > 2 |
| 2 | Pinnules usually 1-pinnate, primary divisions mostly undivided, usually without basal lobes; lobes absent or rounded, auriculate, not directed toward leaf apex; ultimate segments articulate to petiolules, leaving wiry stalks when detached; blade tissue glabrous abaxially. | Lygodium microphyllum |
| 2 | Pinnules usually more than 1-pinnate, primary divisions pinnately to palmately lobed or divided, or if undivided with distinct basal lobes; lobes directed toward leaf apex; ultimate segments not articulate to petiolules, not leaving wiry stalks when detached; blade tissue sparsely to moderately pubescent abaxially. | Lygodium japonicum |