Deparia acrostichoides

(Swartz) M. Kato

Ann. Carnegie Mus. 49: 177. 1980.

Common names: Silvery-spleenwort silvery glade fern athyrie fausse-thélyptère
IllustratedEndemic
Basionym: Asplenium acrostichoides Swartz J. Bot. (Schrader) 1800(1): 54. 1800
Synonyms: Athyrium acrostichoides (Swartz) Diels Athyrium thelypterioides (Michaux) Desvaux Diplazium acrostichoides (Swartz) Butters
Treatment appears in FNA Volume 2.

Stems short-creeping. Petiole dark redbrown at base, straw-colored distally, 10–45 cm, swollen, with 2 rows of teeth; scales at base light-brown, linear-lanceolate to lanceolate. Blade oblong-lanceolate, pinnate-pinnatifid, 30–80 × 12–25 (–30) cm, narrowed to base, broadest near middle, acuminate at apex. Pinnae linear-oblong, base truncate, apex acuminate; segments oblong, margins entire to slightly lobed, apex round to slightly pointed. Costae and veins with multicellular hairs. Veins pinnate, lateral-veins simple or 1-forked. Sori elongate, straight or hooked; indusia ± thick, margin ± entire. 2n = 80.


Habitat: Damp woods, often on slopes
Elevation: 30–1500 m

Distribution

V2 473-distribution-map.gif

N.B., N.S., Ont., P.E.I., Que., Ala., Ark., Conn., Del., Ga., Ill., Ind., Iowa, Ky., Maine, Md., Mass., Mich., Minn., Mo., N.H., N.J., N.Y., N.C., Ohio, Pa., R.I., S.C., Tenn., Vt., Va., W.Va., Wis.

Discussion

Deparia acrostichoides belongs to sect. Lunathyrium. Closely related Asian ferns have been treated as conspecific with Deparia acrostichoides, but D. acrostichoides differs from them in having creeping stems with rather distant leaves and pinnate-pinnatifid leaves. Deparia acrostichoides and Asian species such as D. pycnosora (H. Christ) M. Kato and D. allantodioides (Beddome) M. Kato are examples of vicariant species pairs with amphipacific disjunct distributions.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Deparia acrostichoides"
Masahiro Kato +
(Swartz) M. Kato +
light-brown +
persisting +
swollen +
broadest +
Asplenium acrostichoides +
simple to commonly +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
30 cm300 mm <br />0.3 m <br /> (?) +  and 80 cm800 mm <br />0.8 m <br /> (?) +
narrowed;pinnate-pinnatifid;oblong-lanceolate +
reduced +
12cm;25cm +
roundish +
Silvery-spleenwort +, silvery glade fern +  and athyrie fausse-thélyptère +
N.B. +, N.S. +, Ont. +, P.E.I. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, Ga. +, Ill. +, Ind. +, Iowa +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Mo. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, R.I. +, S.C. +, Tenn. +, Vt. +, Va. +, W.Va. +  and Wis. +
30–1500 m +
often +  and glabrous +
not continuous +
Damp woods, often on slopes +
multicellular +
monomorphic +
entire +  and slightly lobed +
acuminate +
straw-colored +  and dark redbrown +
1/3 length of blade;2/3 length of blade +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
not articulate +
not +  and reduced +
Ann. Carnegie Mus. +
round +, cuplike +, hoodlike +, reniform +, falcate +  and linear +
persistent +
linear-lanceolate;lanceolate +
serrate +, crenulate +  and entire +
straight +
discrete +
hooked +  and elongate +
Illustrated +  and Endemic +
reniform +  and oblong +
dictyostelic +, unbranched +  and branched +
creeping +  and erect +
Athyrium acrostichoides +, Athyrium thelypterioides +  and Diplazium acrostichoides +
Deparia acrostichoides +
species +
epiphytic +  and hemiepiphytic +