Difference between revisions of "Thelypteris kunthii"
Contr. U.S. Natl. Herb. 38: 53. 1967.
FNA>Volume Importer |
imported>Volume Importer |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 75: | Line 75: | ||
|publication year=1967 | |publication year=1967 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_315.xml |
|genus=Thelypteris | |genus=Thelypteris | ||
|subgenus=Thelypteris subg. Cyclosorus | |subgenus=Thelypteris subg. Cyclosorus | ||
Latest revision as of 20:22, 5 November 2020
Stems short- to long-creeping, 4–8 mm diam. Leaves monomorphic, evergreen, up to 2(–3) cm apart, (15–)50–160 cm. Petiole straw-colored, (5–)20–80 × (1–)3–6 mm, at base with brown, linear-lanceolate, hairy scales. Blade (9–)30–80 cm, broadest at base, gradually tapered to pinnatifid apex. Pinnae (2–)8–15(–20) × (0.6–)1–2.5 cm, incised 3/5–4/5 of width; segments oblong, rounded to acute at apex; proximal pair of veins from adjacent segments running to sinus, or nearly so. Indument abaxially of hairs mostly 0.3–1 mm on costae, veins, and blade tissue; veins adaxially with similar hairs but blade tissue usually without hairs, often with scattered yellowish, stalked glands 0.1 mm. Sori round, medial to supramedial; indusia tan, hairy, hairs 0.2–0.4 mm; sporangial glands obscure, yellowish, stalked, arising from sporangial stalks. 2n = 144.
Habitat: Roadsides, ditches, riverbanks, woodlands, limestone sinks
Elevation: 0–100 m
Distribution
Ala., Ark., Fla., Ga., La., Miss., S.C., Tex., e, s Mexico, West Indies, Bermuda, Central America to Costa Rica, South America from Colombia to n Brazil.
Discussion
Thelypteris kunthii occasionally hybridizes with T. augescens and T. ovata in Florida; hybrids with T. hispidula may also occur.
Selected References
None.