Pecluma dispersa

(A. M. Evans) M. G. Price

Amer. Fern J. 73: 114. 1983.

Common names: Widespread polypody
Basionym: Polypodium dispersum A. M. Evans Amer. Fern J. 58: 173, plate 27. 1968
Treatment appears in FNA Volume 2.

Stems 4–6 mm diam.; scales blackish, linear-lanceolate. Leaves erect or arching. Petiole black, 1/4–1/3 length of blade, hairs short, mostly simple, multicellular; scales deltate to linear, base broadly hastate-lacerate. Blade narrowly ovate, 20–70 × 5–11 cm; base narrowly truncate; apex acute. Segments narrowly ovate to linear, 3–5 mm wide; segments at base of blade abruptly reduced, usually reflexed. Veins 1–2-forked. Sori round or oval, sporangia with 32 spores. n = 2n = 111, apogamous.


Phenology: Sporulating all year.
Habitat: Usually on limestone outcrops, occasionally epiphytic in hammocks
Elevation: 0 m

Distribution

V2 609-distribution-map.gif

Fla., Mexico, West Indies, Central America, South America to s Brazil

Discussion

Pecluma dispersa frequently occurs as widely scattered clusters of small juveniles on mossy limestone, arising vegetatively from exposed roots of older plants.

Selected References

None.

Lower Taxa

None.
... more about "Pecluma dispersa"
A. Murray Evans +
(A. M. Evans) M. G. Price +
hastate-lacerate +
reduced +
Polypodium dispersum +
20 cm200 mm <br />0.2 m <br /> (70 cm700 mm <br />0.7 m <br />) +
5cm;11cm +
Widespread polypody +
Fla. +, Mexico +, West Indies +, Central America +  and South America to s Brazil +
elliptic +  and cordate +
Usually on limestone outcrops, occasionally epiphytic in hammocks +
multicellular +  and simple +
monomorphic +
narrowed +
0 cm0 mm <br />0 m <br /> (90 cm900 mm <br />0.9 m <br />) +
1/4 length of blade;1/3 length of blade +
Sporulating all year. +
Amer. Fern J. +
not adaxially +  and grooved +
pubescent;glabrous;pubescent;scaly +
not clathrate +
pubescent +  and glabrous +
deltate +  and linear +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
oval +  and round +
yellowish +  and transparent +
pruinose +
not whitish +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
few;numerous +
verrucose +  and tuberculate +
Polypodium subg. Pectinatum +
Pecluma dispersa +
species +
anastomosing +
pendent +, arching +  and erect +