Thelypteris simulata

(Davenport) Nieuwland

Amer. Midl. Naturalist 1: 226. 1910.

Common names: Massachusetts fern thélyptère simulatrice
Endemic
Basionym: Aspidium simulatum Davenport Bot. Gaz. 19: 495. 1894
Synonyms: Parathelypteris simulata (Davenport) Holttum
Treatment appears in FNA Volume 2.

Stems long-creeping, 1.5–3 mm diam. Leaves 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 above base, 12–45 cm × 1–3 mm, at base sparsely set with tan, ovate, glabrous scales. Blade lanceolate, 14–35 cm, proximal pinnae largest, or lowest pair slightly smaller, blade tapered gradually to pinnatifid apex. Pinnae 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. Indument 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. Sori round, medial; indusia tan, often glandular; sporangia glabrous. 2n = 128.


Habitat: Terrestrial in acid soils of shaded swamps and bogs, frequently associated with sphagnum
Elevation: 0–100 m

Distribution

V2 553-distribution-map.gif

N.B., N.S., Ont., Que., Conn., Del., Maine, Md., Mass., N.H., N.J., N.Y., Pa., R.I., Vt., Va., W.Va., Wis.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Thelypteris simulata"
pinnatifid +
reduced +
Alan R. Smith +
(Davenport) Nieuwland +
Aspidium simulatum +
tapered +  and lanceolate +
14 cm140 mm <br />0.14 m <br /> (35 cm350 mm <br />0.35 m <br />) +
Massachusetts fern +  and thélyptère simulatrice +
N.B. +, N.S. +, Ont. +, Que. +, Conn. +, Del. +, Maine +, Md. +, Mass. +, N.H. +, N.J. +, N.Y. +, Pa. +, R.I. +, Vt. +, Va. +, W.Va. +  and Wis. +
0–100 m +
glandular +  and hairy +
sessile;short-stalked +
reddish +  and orangish +
hemispheric +
not continuous +
Terrestrial in acid soils of shaded swamps and bogs, frequently associated with sphagnum +
branched +  and simple +
transparent +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
ephemeral +  and persistent +
round-reniform +
small +  and large +
monomorphic +
often somewhat longer +
sterile +  and fertile +
25 cm250 mm <br />0.25 m <br /> (80 cm800 mm <br />0.8 m <br />) +
reticulate +  and echinate +
straw-colored +
12 cm120 mm <br />0.12 m <br /> (45 cm450 mm <br />0.45 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
short-stalked +  and sessile +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
smaller +  and largest +
Amer. Midl. Naturalist +
hairy +  and glabrous +
0.15 cm1.5 mm <br />0.0015 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
long-creeping;ascending +
Parathelypteris simulata +
Thelypteris simulata +
Thelypteris subg. Parathelypteris +
species +
crescent--shaped +
simple +  and anastomosing +
on rock +  and terrestrial +