Adiantum hispidulum

Swartz

J. Bot. (Schrader) 1800(2): 82. 1801.

Common names: Rosy maidenhair
Treatment appears in FNA Volume 2.

Stems short-creeping; scales dark reddish-brown, concolored, margins entire. Leaves arching, clustered, 20–37 cm. Petiole 1–2 mm diam., adaxially hispid, not glaucous. Blade lanceolate, pinnate or occasionally pseudopedate, 1-pinnate distally, 12–18 × 6.5–8 cm; proximal pinnae 1–4-pinnate; indument of light-colored, sparse, multicellular hairs; rachis straight, densely hispid, not glaucous. Segment stalks 0.2–0.3 mm, dark color generally entering into segment base. Ultimate segments oblong to long-triangular, ca. 2 times as long as broad, progressively reduced toward apex of penultimate divisions; basiscopic margin oblique; acroscopic margin of fertile segments crenulate, sterile segments sharply denticulate; apex obtuse or acute. False indusia ± round, 0.6–0.9 mm diam., covered with reddish-brown, stiff, needlelike bristles. Spores mostly 40–60 µm diam.


Phenology: Sporulating summer–fall.
Habitat: Banks and old walls
Elevation: 0–100 m

Distribution

V2 304-distribution-map.gif

Introduced; Conn., Ga., Asia in s India, e Africa, Pacific Islands

Discussion

Adiantum hispidulum is represented by sporadic escapes from cultivation in the flora, possibly naturalized locally. It also has been reported from Florida and Louisiana.

Selected References

None.

Lower Taxa

None.
... more about "Adiantum hispidulum"
Acute (?) +  and Obtuse (?) +
Cathy A. Paris +
Swartz +
truncate +  and cuneate +
pseudopedate +  and pinnate +
12 cm120 mm <br />0.12 m <br /> (18 cm180 mm <br />0.18 m <br />) +
lanceolate +
6.5cm;8cm +
reddish-brown +
Rosy maidenhair +
Conn. +, Ga. +, Asia in s India +, e Africa +  and Pacific Islands +
0–100 m +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
yellow +  and white +
obcordate;reniform +
Banks and old walls +
multicellular +
light-colored +
monomorphic +
densely clustered;closely spaced +
recurved +  and reflexed +
noncircinate +  and circinate +
20 cm200 mm <br />0.2 m <br /> (37 cm370 mm <br />0.37 m <br />) +
dentate +, erose-ciliate +  and entire +
chestnut-brown;dark purple or blackish +
not glaucous +  and hispid +
Sporulating summer–fall. +
J. Bot. (Schrader) +
not glaucous +  and hispid +
concolored;dark reddish-brown +
persistent +
linear-lanceolate +  and lanceolate +
sterile +  and fertile +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
yellowish-brown +  and yellow +
1 +, 32 +  and 64 +
tetrahedral-globose +
suberect +  and long-creeping +
shiny +  and dull +
Adiantum hispidulum +
Adiantum +
species +
2 times as long as broad +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 2.9 cm29 mm <br />0.029 m <br /> (?) +
1 +  and several +
crescent--shaped +  and roundish +
anastomosing +  and simple +
conspicuous +
on rock +  and terrestrial +