Contains 9 accepted taxa overall.
Characteristics
Classification
Citation
PTERIS Linnaeus, Sp. Pl. 1073. 1753.
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TYPE: Pteris longifolia Linnaeus Lectotypified by J. Smith, Hist. Filic. 295. 1875; Maxon, J. Bot. 61: 7-10. 1933.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Pteris bahamensis | BAHAMA LADDER BRAKE | Native Threatened-State | ||
| Pteris cretica | CRETAN BRAKE | Not Native | ||
| Pteris ensiformis | SLENDER BRAKE; SWORD BRAKE | Not Native | ||
| Pteris grandifolia | LONG BRAKE | Not Native OBL (NWPL) | ||
| Pteris multifida | SPIDER BRAKE; HUGUENOT FERN | Not Native | ||
| Pteris quadriaurita | STRIPED BRAKE | Native FAC (NWPL) | ||
| Pteris tripartita | GIANT BRAKE | Not Native FACW (NWPL) Y FACW (DEP) | ||
| Pteris vittata | CHINESE LADDER BRAKE | Not Native FAC (NWPL) Y | ||
| Pteris x delchampsii | DELCHAMPS' LADDER BRAKE | Native |
Identification Key
1. Leaves regularly 1-pinnate
2
1. Leaves 2-3-pinnate or irregularly pinnate with the proximal pinnae forked, divided, or pinnatifid
5
2. Pinnae 1-5 cm wide, the veins usually partly anastomosing
2. Pinnae 0.1-1.1 cm wide, the veins free, not anastomosing
3
3. Spores malformed, of different sizes and shapes
3. Spores of uniform shape and size
4
4. Petioles often sparsely scaly, scales dark brown to nearly black, scales absent or few on rachises, the costae abaxially with or without hairs; lateral pinnae mostly green to light green, 1-6 mm wide, appearing articulate to rachis, apices rounded to obtuse
4. Petioles and often rachises densely scaly, scales light to reddish, often grading into hairs on abaxial costae; lateral pinnae mostly green to dark green, 5-11 mm wide, appearing not articulate to rachis, apices long-attenuate to sharply acute
5. Leaf blade pinnae or pinnules regularly deeply lobed, with 5-25 pairs of subequal lobes
6
5. Leaf blade pinnae or pinnules unlobed or irregularly lobed with unequal and few lobes
7
6. Leaves 0.3-1 m long, 2-pinnate at the basalmost pinnae with usually 2 pinnules, veins free and not anastomosing
6. Leaves 1-2 m long, 2- or 3-pinnate, the basalmost pinnae with more than 2 pinnules, veins anastomosing
7. Central rachis usually not winged; costae abaxially with few scattered linear scales
7. Central rachis usually distally winged; costae abaxially without scales
8
8. Leaf segment apices attenuate to long-acuminate, the segments all uniformly linear or nearly so
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Campteria | Campteria C. Presl, Tent. Pterid. 146, t. 5(19, 26). 1836. | TYPE: Campteria pectinata C. Presl (Pteris pectinata D. Don 1825, non Cavanilles 1802, nec Desvaux 1811) Lectotypified by Pfeiffer, Nomencl. 1: 570. 1873. | |
| Heterophlebium | Heterophlebium Fee, Mem. Foug. 5: 139. 1852. | TYPE: Heterophlebium grandifolium (Linnaeus) Fee (Pteris grandifolia Linnaeus) | |
| Lemapteris | Lemapteris Rafinesque, J. Phys. Chim. Hist. Nat. 89: 262. 1819. | TYPE: = Pteris Linnaeus 1753. | |
| Litobrochia | Litobrochia C. Presl, Tent. Pterid. 148, t. 5(20, 24, 25). 1836. | TYPE: Litobrochia denticulata (Swartz) C. Presl (Pteris denticulata Swartz) Lectotypified by C. Christensen, Index Filicum XLIV. 1906. | |
| Peripteris | Peripteris Rafinesque, Anal. Fam. Pl. 205. 1815. | TYPE: = Pteris Linnaeus 1753. | |
| Phyllitis | Phyllities Rafinesque, Amer. Monthly Mag. & Crit. Rev. 4: 195. 1819, non Hill 1757. | TYPE: = Pteris Linnaeus 1753. | |
| Pteridium | Pteridium Rafinesque, Princ. Fond. Somiol. 26. 1814, non Gleditsch ex Scopoli 1760. | TYPE: = Pteris Linnaeus 1753. | |
| Pterilis | Pterilis Rafinesque, Med. Fl. 2: 254. 1830, non Rafinesque 1819. | TYPE: = Pteris Linnaeus 1753. | |
| Pycnodoria | Pycnodoria C. Presl, Epimel. Bot. 100. 1851 ("1849"); Abh. Koenigl. Boehm. Ges. Wiss., ser. 5. 6: 460. 1851. | TYPE: Pycnodoria opaca C. Presl | |
| Thelypteris | Thelypteris Adanson, Fam. Pl. 2: 20, 610. 1763, nom. rej. vs. Thelypteris Schmidel 1763. | TYPE: = Pteris Linnaeus 1753. |