Thelypteris noveboracensis |
Thelypteris hispidula |
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fougère de New York, New York fern, thélyptéride de New York |
hairy maiden fern, roughhairy maiden fern |
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Stems | usually long-creeping, 1.5–2.5 mm diam. |
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Leaves | monomorphic, dying back in winter, mostly evenly spaced 1 cm or more (sun-gathering leaves in loose cluster), (25–)40–85 cm. |
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Petiole | straw-colored, 4–25 cm × 1–3 mm, at base with scales tan to reddish brown, ovate, glabrous. |
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Blade | elliptic, 15–60 cm, proximal 4–10 pinna pairs gradually smaller toward base (smallest often less than 5 mm), blade tapering gradually to pinnatifid apex. |
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Pinnae | deeply pinnatifid to within 1 mm of costa, 3–9(–13) × 1–2(–2.5) cm; segments oblong to linear, somewhat oblique, entire to crenulate; proximal pair of veins from adjacent segments meeting margin above sinus. |
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Sori | round, supramedial; indusia tan, often ciliate; sporangia glabrous. |
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Indument | abaxially of moderately to densely set hairs to 1 mm on rachises, costae, and veins, glands lacking or yellowish to light orangish, mostly sessile on blade tissue; blades adaxially often with hairs on veins. |
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2n | = 54. |
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Thelypteris noveboracensis |
Thelypteris hispidula |
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Habitat | Terrestrial in moist woods, especially near swamps, streams, and in vernal seeps of ravines, often in slightly disturbed secondary forests, frequently forming large colonies | |
Elevation | 0–1100 m (0–3600 ft) | |
Distribution |
AL; AR; CT; DC; DE; GA; IL; IN; KY; LA; MA; MD; ME; MI; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; VA; VT; WV; NB; NF; NS; ON; PE; QC; SPM
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AL; FL; GA; LA; MS; SC; TX; North America; Mexico; Central America; South America; tropical and subtropical; West Indies in the Antilles; Asia; Africa
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Discussion | Varieties 4 (1 in the flora). This species and the next are included in Christella subg. Christella by R. E. Holttum (1982). The relationship between Old World and New World varieties is unstudied. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 2. | FNA vol. 2. |
Parent taxa | Thelypteridaceae > Thelypteris > subg. Parathelypteris | Thelypteridaceae > Thelypteris > subg. Cyclosorus |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Polypodium noveboracense, Dryopteris noveboracensis, Parathelypteris noveboracensis, T. thelypterioides | Aspidium hispidulum, Christella hispidula, Cyclosorus quadrangularis, Dryopteris hispidula, Dryopteris quadrangularis, T. quadrangularis |
Name authority | (Linnaeus) Nieuwland: Amer. Midl. Naturalist 1: 225. (1910) | (Decaisne) C. F. Reed: Phytologia 17: 283. (1968) |
Web links |