Pteris multifida

Poiret in Lamarck et al.

in Lamarck et al.,Encycl. 5: 714. 1804.

Common names: Spider brake spider fern Chinese brake Huguenot fern saw-leaved bracken
Introduced
Synonyms: Pycnodoria multifida (Poiret) Small
Treatment appears in FNA Volume 2. Treatment on page 134.
Revision as of 23:22, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Stems slender, short-creeping, densely scaly; scales dark reddish-brown to chestnut-brown. Leaves clustered, 1–6 dm. Petiole pale or brownish, 5–30 cm, scaly proximally, otherwise glabrous. Blade oblong to oblanceolate, irregularly and pedately divided proximally (as in Pteris cretica) and pinnately divided distally, 10–35 × 13–25 cm; rachis slightly and evenly winged, wing constricted above each pinna pair. Pinnae 3–7 pairs, widely spaced, distal pinnae simple, adnate and decurrent to rachis; pinnae remaining green through winter, not articulate to rachis, lanceolate to linear; sterile pinnae wider than fertile pinnae (to ca. 1.2 cm), margins irregularly serrate to serrulate; fertile pinnae mostly less than 5 mm, margins entire to serrate at apex; adaxial costae with sparse, septate hairs; proximal pinnae with 1–4 elongate basal segments. Veins free, simple or forked. Sori narrow, blade tissue exposed abaxially. 2n = 116.


Habitat: Terrestrial or on rock in disturbed areas in circumneutral soils; primarily coastal plain.

Distribution

V2 119-distribution-map.gif

Introduced; Ala., Ark., Fla., Ga., Ill., Ind., Ky., La., Md., Miss., N.Y., N.C., S.C., Tex., West Indies, South America in Argentina, Brazil, native to Asia

Discussion

Pteris multifida is found on old shady walls and masonry around cemeteries, dumps, and towns. It may no longer occur in Indiana. Juveniles of Pteris multifida may key to Pteris cretica.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property."wider" is not a number.

... more about "Pteris multifida"
Clifton E. Nauman +
Poiret in Lamarck et al. +
narrowed +  and truncate +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
scaly +, pubescent +, sometimes +  and glabrous +
divided +, oblong +  and oblanceolate +
herbaceous;leathery +
13 cm130 mm <br />0.13 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Spider brake +, spider fern +, Chinese brake +, Huguenot fern +  and saw-leaved bracken +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, La. +, Md. +, Miss. +, N.Y. +, N.C. +, S.C. +, Tex. +, West Indies +, South America in Argentina +, Brazil +  and native to Asia +
yellow +  and white +
obcordate;reniform +
Terrestrial or on rock in disturbed areas in circumneutral soils +  and primarily coastal plain. +
monomorphic +
spaced;clustered +
recurved +  and reflexed +
conspicuous +
noncircinate +  and circinate +
brownish;pale +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
not articulate +
fertile +  and sterile +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
in Lamarck et al.,Encycl. +
dark reddish-brown;chestnut-brown +
persistent +
elongate +
Introduced +
intramarginal +
1 +, 32 +  and 64 +
tetrahedral +
not lustrous +
creeping +  and erect +
slender +
Pycnodoria multifida +
Pteris multifida +
species +
0.15 cm1.5 mm <br />0.0015 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
crescent--shaped +  and roundish +
on rock +  and terrestrial +
constricted +