Dennstaedtia globulifera

(Poiret) Hieronymus

Bot. Jahrb. Syst. 34: 455. 1904.

Common names: Beaded cuplet fern
Basionym: Polypodium globuliferum Poiret in Lamarck et al., Encycl. 5: 554. 1804
Treatment appears in FNA Volume 2.

Stems long-creeping, 3–10 mm diam. Leaves clustered to well separated to distant, erect or arching, 2–3 × (1–) 2 (–3) m. Petiole yellowish to brown throughout, lustrous, ca. 1/3 length of blade, sparsely pubescent with soft, jointed hairs. Blade green, dull, ovate to deltate, 3 (–4) -pinnate, nearly as wide as long, base truncate, apex acute, with reddish jointed hairs on veins abaxially, glabrous adaxially. Basal segments of pinnules alternate; ultimate segments ovate to elliptic, base ± equilateral, margins lobed ca. 1/2 distance to midrib. Sori globose; indusia globose. Spores trilete, strongly 3-lobed, surface coarsely verrucose. 2n = ca. 94.


Phenology: Sporulates summer.
Habitat: Moist caves or sinks
Elevation: 300–500 m

Distribution

V2 141-distribution-map.gif

Tex., Mexico, West Indies, Central America, South America

Discussion

The tropical Dennstaedtia globulifera and D. bipinnata are among the largest ferns in the flora. In the flora Dennstaedtia globulifera is found only in Val Verde County, Texas.

Selected References

None.

Lower Taxa

None.

"/3lengthofblade" is not declared as a valid unit of measurement for this property.

... more about "Dennstaedtia globulifera"
Clifton E. Nauman +  and A. Murray Evans +
(Poiret) Hieronymus +
equilateral +  and truncate +
Polypodium globuliferum +
1-pinnate;decompound +
with mixture +, hairy +  and glabrous +
ovate;deltate +
Beaded cuplet fern +
Tex. +, Mexico +, West Indies +, Central America +  and South America +
300–500 m +
Moist caves or sinks +
2-valvate +  and circular +
monomorphic +
separated +  and distant +
200 cm2,000 mm <br />2 m <br /> (300 cm3,000 mm <br />3 m <br />) +
200 cm2,000 mm <br />2 m <br /> (300 cm3,000 mm <br />3 m <br />) +
arching +  and erect +
ovate +  and lanceolate +
40 cm400 mm <br />0.4 m <br /> (300 cm3,000 mm <br />3 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
not articulate +
yellowish;brown +
Sporulates summer. +
Bot. Jahrb. Syst. +
distinct +
globose +
3-lobed +
branching +  and solenostelic +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
subterranean +
verrucose +
Dennstaedtia globulifera +
Dennstaedtia +
species +
forking +  and pinnate +
47 +, 46 +  and 34 +