Thelypteris noveboracensis |
Thelypteris simulata |
|
---|---|---|
fougère de New York, New York fern, thélyptéride de New York |
bog fern, Massachusetts fern, thélyptère simulatrice |
|
Stems | usually long-creeping, 1.5–2.5 mm diam. |
long-creeping, 1.5–3 mm diam. |
Leaves | monomorphic, dying back in winter, mostly evenly spaced 1 cm or more (sun-gathering leaves in loose cluster), (25–)40–85 cm. |
monomorphic, dying back in winter, often 1 cm or more apart, fertile leaves often somewhat longer than sterile leaves, 25–80 cm. |
Petiole | straw-colored, 4–25 cm × 1–3 mm, at base with scales tan to reddish brown, ovate, glabrous. |
straw-colored above base, 12–45 cm × 1–3 mm, at base sparsely set with tan, ovate, glabrous scales. |
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. |
lanceolate, 14–35 cm, proximal pinnae largest, or lowest pair slightly smaller, blade tapered gradually to pinnatifid apex. |
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. |
deeply pinnatifid to ca. 1 mm from costa, 3–10 × 1–2 cm; segments oblong, somewhat oblique, entire; proximal pair of veins from adjacent segments meeting margin above sinus. |
Sori | round, supramedial; indusia tan, often ciliate; sporangia glabrous. |
round, medial; indusia tan, often glandular; sporangia glabrous. |
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. |
abaxially of sparsely set hairs 0.2–0.4 mm primarily on costae, also of yellowish short-stalked glands less than 0.1 mm, blade tissue with numerous reddish to orangish, resinous, shiny, sessile, hemispheric glands; blades adaxially with scattered hairs on veins. |
2n | = 54. |
= 128. |
Thelypteris noveboracensis |
Thelypteris simulata |
|
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 | Terrestrial in acid soils of shaded swamps and bogs, frequently associated with sphagnum |
Elevation | 0–1100 m (0–3600 ft) | 0–100 m (0–300 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
|
CT; DE; MA; MD; ME; NH; NJ; NY; PA; RI; VA; VT; WI; WV; NB; NS; ON; QC
|
Source | FNA vol. 2. | FNA vol. 2. |
Parent taxa | Thelypteridaceae > Thelypteris > subg. Parathelypteris | Thelypteridaceae > Thelypteris > subg. Parathelypteris |
Sibling taxa | ||
Synonyms | Polypodium noveboracense, Dryopteris noveboracensis, Parathelypteris noveboracensis, T. thelypterioides | Aspidium simulatum, Parathelypteris simulata |
Name authority | (Linnaeus) Nieuwland: Amer. Midl. Naturalist 1: 225. (1910) | (Davenport) Nieuwland: Amer. Midl. Naturalist 1: 226. (1910) |
Web links |