Deparia petersenii

(Kunze) M. Kato

Bot. Mag. (Tokyo) 90: 37. 1977.

Introduced
Basionym: Asplenium petersenii Kunze Analecta Pteridogr., 24. 1837
Synonyms: Athyrium petersenii (Kunze) Copeland Diplazium petersenii (Kunze) H. Christ
Treatment appears in FNA Volume 2.

Stems creeping. Petiole dark-brown or blackish at base, straw-colored distally, 10–30 cm, not swollen, teeth absent; scales pale-brown, linear-lanceolate. Blade ovatelanceolate, deeply pinnate-pinnatifid, 15–40 × 6–28 cm, moderately or slightly narrowed to base, broadest above base, abruptly narrowed to acuminate, pinnatifid apex. Pinnae oblong to linear-lanceolate, base ± truncate or broadly cuneate, apex acuminate to caudate; segments oblong, margins ± entire to serrate, apex obtuse or ± acute. Costae and veins with multicellular hairs. Veins pinnate, lateral-veins usually simple, or sometimes forked in larger leaves. Sori elongate, straight or rarely hooked; indusia membraneous, margins laciniate.


Habitat: Moist ravines, lowlands
Elevation: 0–100 m

Distribution

V2 168-distribution-map.gif

Introduced; Ala., Fla., Ga., Asia, Pacific Islands, Australia

Discussion

Deparia petersenii belongs to sect. Athyriopsis. It is an edible fern native to southeastern Asia, and it persists or escapes from cultivation in southeastern North America (C. V. Morton and R. K. Godfrey 1958) but does not seem to be truly naturalized (O. Lakela and R. W. Long 1976).

Specimens of D. petersenii from North America are often misidentified as the Asian species, Deparia japonica (Thunberg) M. Kato [Diplazium japonicum (Thunberg) Beddome].

Selected References

None.

Lower Taxa

None.
... more about "Deparia petersenii"
Acute (?) +, Obtuse (?) +, Acuminate (?) +  and Caudate (?) +
Masahiro Kato +
(Kunze) M. Kato +
persisting +
cuneate +, truncate +, abruptly narrowed +  and acuminate +
broadest +
Asplenium petersenii +
simple to commonly +
15 cm150 mm <br />0.15 m <br /> (?) +  and 40 cm400 mm <br />0.4 m <br /> (?) +
narrowed;pinnate-pinnatifid;ovatelanceolate +
reduced +
6cm;28cm +
roundish +
Ala. +, Fla. +, Ga. +, Asia +, Pacific Islands +  and Australia +
0–100 m +
often +  and glabrous +
not continuous +
Moist ravines, lowlands +
multicellular +
membraneous +
monomorphic +
laciniate +
straw-colored +, blackish +  and dark-brown +
1/3 length of blade;2/3 length of blade +
not swollen +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not articulate +
not +  and reduced +
Bot. Mag. (Tokyo) +
round +, cuplike +, hoodlike +, reniform +, falcate +  and linear +
2 (?) +  and 3 (?) +
persistent +
linear-lanceolate +
serrate +, crenulate +  and entire +
straight +
discrete +
hooked +  and elongate +
Introduced +
reniform +  and oblong +
dictyostelic +, unbranched +  and branched +
creeping +  and erect +
Athyrium petersenii +  and Diplazium petersenii +
Deparia petersenii +
species +
epiphytic +  and hemiepiphytic +