familyThelypteridaceae
genusThelypteris
subgenusThelypteris subg. Meniscium
speciesThelypteris reticulata
Difference between revisions of "Thelypteris reticulata"
Bull. Inst. Jamaica, Sci. Ser. 5: 63. 1953.
Common names: Lattice-vein fern
Basionym: Polypodium reticulatum Linnaeus
Synonyms: Dryopteris reticulata (Linnaeus) UrbanMeniscium reticulatum (Linnaeus) Swartz
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| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>short- to long-creeping, 3–10 mm diam. <b>Leaves</b> monomorphic to somewhat dimorphic, evergreen, fertile leaves with longer petioles, to 2 m or more. <b>Petiole</b> tan, to ca. 1 m × 10 mm, at base with scales absent or ephemeral. <b>Blade</b> 50–120 cm, with apical pinna similar to lateral pinnae and 1/2 to nearly equaling longest lateral pinna; buds often present at base of proximal pinna. <b>Pinnae</b> to 20 pairs or more, widest at or near rounded or broadly cuneate base, 20–30 × 2–6 cm, margin entire to crenulate; main lateral veins of fertile pinnae 2–4 per cm, with 12–20 rows of areoles between costa and margin, secondary veins somewhat curved. <b>Indument</b> abaxially of mostly adpressed, curved hairs 0.2–0.3 mm on costae; blades glabrous adaxially. <b>Sori</b> oblong-arcuate, uniseriate between lateral veins on cross-veins; indusia lacking; sporangia glabrous. <b>2n</b> = 144.</span><!-- |
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|genus=Thelypteris | |genus=Thelypteris | ||
|subgenus=Thelypteris subg. Meniscium | |subgenus=Thelypteris subg. Meniscium | ||
|species=Thelypteris reticulata | |species=Thelypteris reticulata | ||
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Revision as of 14:24, 27 July 2019
Stems short- to long-creeping, 3–10 mm diam. Leaves monomorphic to somewhat dimorphic, evergreen, fertile leaves with longer petioles, to 2 m or more. Petiole tan, to ca. 1 m × 10 mm, at base with scales absent or ephemeral. Blade 50–120 cm, with apical pinna similar to lateral pinnae and 1/2 to nearly equaling longest lateral pinna; buds often present at base of proximal pinna. Pinnae to 20 pairs or more, widest at or near rounded or broadly cuneate base, 20–30 × 2–6 cm, margin entire to crenulate; main lateral veins of fertile pinnae 2–4 per cm, with 12–20 rows of areoles between costa and margin, secondary veins somewhat curved. Indument abaxially of mostly adpressed, curved hairs 0.2–0.3 mm on costae; blades glabrous adaxially. Sori oblong-arcuate, uniseriate between lateral veins on cross-veins; indusia lacking; sporangia glabrous. 2n = 144.
Habitat: Hammocks in subacid, swampy soil in full shade
Elevation: 0–50 m
Distribution
Fla., s Mexico, West Indies in the Antilles, South America in Colombia, n Venezuela.
Discussion
Thelypteris reticulata is very rare in the flora.
Selected References
None.
Lower Taxa
None.