Contains 18 accepted taxa overall.
Characteristics
Classification
Citation
THELYPTERIS Schmidel, Icon. Pl., ed. Keller 3, 45, t. 11, 13. 1763, nom. cons. vs. Thelypteris Adanson 1763.
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TYPE: Thelypteris palustris Schott (Acrostichum thelypteris Linnaeus)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Thelypteris augescens | ABRUPT-TIP MAIDEN FERN | Native Threatened-State FACW (DEP) | ||
| Thelypteris dentata | DOWNY MAIDEN FERN; DOWNY SHIELD FERN | Not Native FACW (NWPL) Y FACW (DEP) | ||
| Thelypteris grandis | STATELY MAIDEN FERN; COLLIER COUNTY MAIDEN FERN | Native Rare-State FACW (DEP) | ||
| Thelypteris guadalupensis | GUADALOUPE MAIDEN FERN | Native | ||
| Thelypteris hispidula var. versicolor | HAIRY MAIDEN FERN | Native FACU- (NWPL) FACW (DEP) | ||
| Thelypteris interrupta | HOTTENTOT FERN; WILLDENOW'S FERN | Native FACW (NWPL) FACW (DEP) | ||
| Thelypteris kunthii | WIDESPREAD MAIDEN FERN; SOUTHERN SHIELD FERN | Native FACW (NWPL) FACW (DEP) | ||
| Thelypteris opulenta | JEWELED MAIDEN FERN | Not Native Y FACW (DEP) | ||
| Thelypteris ovata | OVATE MARSH FERN | Native FACW (NWPL) FACW (DEP) | ||
| Thelypteris palustris var. pubescens | MARSH FERN | Native OBL (NWPL) FACW (DEP) | ||
| Thelypteris patens | GRID-SCALE MAIDEN FERN | Native Rare-State FACU (NWPL) FACW (DEP) | ||
| Thelypteris reptans | CREEPING STAR-HAIR FERN | Native Rare-State FACW (DEP) | ||
| Thelypteris resinifera | GLANDULAR MAIDEN FERN | Native FACW (NWPL) FACW (DEP) | ||
| Thelypteris reticulata | LATTICE-VEIN FERN | Native Rare-State FACW (NWPL) FACW (DEP) | ||
| Thelypteris sancta | CARIBBEAN MAIDEN FERN | Native FAC (NWPL) | ||
| Thelypteris sclerophylla | STIFF STAR-HAIR FERN | Native Rare-State UPL (NWPL) FACW (DEP) | ||
| Thelypteris serrata | TOOTHED LATTICE-VEIN FERN; DENTATE LATTICE-VEIN FERN | Native Rare-State FACW (NWPL) FACW (DEP) | ||
| Thelypteris tetragona | FREE-TIP STAR-HAIR FERN | Native FACW (DEP) |
Identification Key
1. Pinnae unlobed; veins forming several areoles between the margin and main vein; sori elongate
1. Pinnae lobed to deeply pinnatifid; veins free or united at or below sinus
2
2. Plant with forked or stellate trichomes, especially on scales of stem apices, the rachis, and other parts of blade
2. Plant with simple trichomes only or glabrous
3
3. Blade lower surface with spherical, sessile or subsessile reddish brown or yellowish glands
4
3. Blade lower surface eglandular or the glands inconspicuous
5
4. Rhizome short-creeping; glands sulphur-yellow, subsessile (Amblovenatum)
4. Rhizome erect; glands orangish to reddish brown, sessile (Amauropelta)
5. Veins often forked; leaves winter-deciduous (Thelypteris s.str.)
5. Veins not forked; leaves usually not winter-deciduous
6
6. Veins free or united at the sinus (or just below the sinus), not forming a single vein to the sinus
6. Veins (at least some) uniting below the sinus and forming a single vein to the sinus
7
7. Rhizome black, long-creeping, leaves appearing distant; petiole base black; sori in a nearly continuous sinuous line appearing to connect from pinnule to pinnule (Cyclosorus)
7. Rhizome brown, short-creeping, leaves appearing clustered; petiole base brown; sori not in a nearly continuous line
1. (Amauropelta key) Leaves 20-70(80) cm long; pinnae pinnatifid; petiole 2-5 mm wide
1. Leaves 10-30(40) cm long; pinnae at least partly 1-pinnate; petiole 0.5-1.5 mm wide
1. (Christella key) Petiole usually brownish purple above base; leaves with usually more than 2 pairs of greatly reduced proximal pinnae; blade lower surface with trichomes <0.2 mm long, except a few along veins sometimes 0.3-0.5 mm long; excurrent veins mostly >2 mm long
1. Petiole usually pale yellowish above base; leaves with 0-2 pairs of slightly reduced proximal pinnae; blade lower surface mostly with trichomes 0.3-0.7 mm long; excurrent veins <2 mm long
1. (Goniopteris key) Leaf 15-25 cm wide, abruptly narrowed to the apex, the apical pinna subtended by a naked rachis and somewhat similar to the lateral pinnae
1. Leaf to 10 cm wide, gradually narrowed to the apex, the apical pinna pinnatifid and dissimilar to the lateral pinnae
2
2. Leaves monomorphic and erect, not rooting at the apex; lateral pinnae dentate
2. Leaves somewhat dimorphic, the sterile ones shorter and spreading or prostrate, the mature fronds erect, ascending, or spreading, sometimes rooting at the apex; lateral pinnae entire, crenulate, or lobed but not as above
3
3. Mature leaves erect, the blade simple-pinnatifid for 3/4 the length with 1-4 pairs of free basal pinnae
3. Mature leaves spreading to ascending, the blade pinnate with the terminal pinna simple-pinnatifid, but this <1/2 the length of the blade
1. (Meniscium key) Pinnae entire, undulate, to subtly crenulate, 2-6 cm wide
1. Pinnae serrate (at least toward apex), 2-3.5(4.5) cm wide
1. (Pelazoneuron key) Leaves to 3 m long; basal pinnae with its basal lobes reduced and shorter than the proceeding lobes
1. Leaves (0.1)0.3-1.4(1.6) m long; basal pinnae with its basal lobes subequal to longer than the proceeding lobes
2
2. Rhizome erect; scales at base of petioles ovate, glabrous; basal lobes of pinnae acuminate, often rather straight, longer than the proceeding and more ascending to curved lobes
2. Rhizome creeping; scales at base of petioles lanceolate, usually hairy; basal lobes of pinnae acute, slightly longer than to subequal and rather similar to the proceeding lobes
3
3. Blade upper surface copiously pubescent
3. Blade upper surface glabrous to sparingly pubescent
4
4. Blades coriaceous; scales of costa abaxially often numerous; terminal portion of blade with unlobed pinnae usually at least 5 times longer than wide, 10-20 cm long; basal pinnae 7-15 mm wide, sinuses 0.5-0.7 of the lobe length
4. Blades chartaceous to subcoriaceous; scales of costa abaxially sparse to absent; terminal portion of blade with unlobed pinnae usually <5 times as long as wide, 6-12 cm long; basal pinnae (8)12-22 mm wide, sinuses 0.6-0.9 of the lobe length
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Amauropelta | Amauropelta Kunze, Farrnkraeuter 1: 86. 1842. | TYPE: Amauropelta breutelii Kunze | |
| Amblovenatum | Amblovenatum J. P. Roux, Strelitzia 23: 200. 2009. | TYPE: Amblovenatum opulentum (Kaulfuss) J. P. Roux 2009. (Aspidium opulentum Kaulfuss 1824.) Replacement name for Amphineuron Holttum 1971, non Amphineurion (Alph. de Candolle) Pichon 1948. | |
| Amphineuron | Amphineuron Holttum, Blumea 19: 45, f. 19-19a. 1971, non Amphineurion (Alph. de Candolle) Pichon 1948. | TYPE: Amphineuron opulentum (Kaulfuss) Holttum 1971. (Aspidium opulentum Kaulfuss 1824.) - Amblovenatum J. P. Roux 2009. | |
| Christella | Christella H. Léveillé, Fl. Kouy-Tchéou 472. 1915. | TYPE: Christella parasitica (Linnaeus) H. Léveillé 1915. (Polypodium parasiticum Linnaeus 1753.) Lectotypified by Holttum, Taxon 20: 534. 1971. | |
| Cyclosorus | Cyclosorus Link, Hort. Berol. 2: 128. 1833. | TYPE: Cyclosorus goggilodus (Schkuhr) Link (Aspidium goggilodus Schkuhr) | |
| Glaphyropteris | Glaphyropteris (Fee) C. Presl ex Fee, Crypt. Vasc. Bresil 2: 40. 1873. | BASIONYM: Phegopteris Fee, subg. Glaphyropteris Fee, Mem. Foug. 11: 58. 1866. | TYPE: Glaphyropteris decussata (Linnaeus) Fee (Polypodium decussatum Linnaeus) |
| Goniopteris | Goniopteris C. Presl, Tent. Pterid. 181, t. 7(9-11). 1836. | TYPE: Goniopteris crenata (Swartz) C. Presl (Polypodium crenatum Swartz) Lectotypified by J. Smith, Hist. Filicum 191. 1875. | |
| Hemestheum | Hemestheum Newman, Phytologist 4(App.): xxi. 1851. | TYPE: Hemestheum thelypteris (Linnaeus) Newman 1851. (Acrostichum thelypteris Linnaeus 1753.) = Thelypteris Schmidel 1763. | |
| Lastrea | Lastrea Bory, in Cuvier, Dict. Class. Hist. Nat. 6: 588. 1824. | TYPE: = Thelypteris Schmidel 1763. | |
| Leptogramma | Leptogramma J. Smith, J. Bot. (Hooker) 4: 51. 1841. | TYPE: Leptogramma totta (Schlechtendal) J. Smith (Gymnogramma totta Schlechtendal) Lectotypified by J. Smith, Hist. Filicum 231. 1875. | |
| Meniscium | Meniscium Schreber, Gen. Pl. 2: 757. 1791. | TYPE: Meniscium reticulatum (Linnaeus) Swartz (Polypodium reticulatum Linnaeus) | |
| Oochlamys | Oochlamys Fee, Mem. Foug. 5: 297. 1852. | TYPE: Oochlamys rivoirei Fee | |
| Oreopteris | Oreopteris Holub, Folia Geobot. Phytotax. 4: 46. 1969. | TYPE: Oreopteris limbosperma (Allioni) Holub (Thelipteris limbosperma Allioni) | |
| Parathelypteris | Parathelypteris (Ito) Ching, Acta Phytotax. Sin. 8: 300. 1963. | BASIONYM: Thelypteris Schmidel, sect. Parathelypteris Ito, in Nakai & Honda, Fl. Jap. 4: 127. 1939. | TYPE: Parathelypteris glanduligera (Kunze) Ching (Aspidium glanduligerum Kunze) |
| Pelazoneuron | Pelazonauron (Holttum) A. R. Smith & S. E. Fawcett, Sida Bot. Misc. 59: 62. 2021. | BASIONYM: Christella H. Léveille, sect. Pelazoneuron Holttum, J. S. African Bot. 40: 144. 1974. | TYPE: Pelazoneuron patens (Swartz) A. R. Smith & S. E. Fawcett 2021. (Polypodium patens Swartz 1788.) |
| Stegnogramma | Stegnogramma Blume, Enum. Pl. Javae 2: 172. 1828. | TYPE: Stegnogramma aspidioides Blume | |
| Steiropteris | Steiropteris (C. Christensen) Pichi Sermolli, Webbia 28: 449. 1974. | BASIONYM: Dryopteris Adanson, subg. Steiropteris C. Christensen, Biol. Arbejd. Tilegn. Eug. Warming 81. 1911. | TYPE: Steiropteris deltoidea (Swartz) Pichi Sermolli (Polypodium deltoideum Swartz) |