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.

"/4lengthofblade" is not declared as a valid unit of measurement for this property.

... more about "Pecluma dispersa"
A. Murray Evans +
(A. M. Evans) M. G. Price +
hastate-lacerate +
reduced +
Polypodium dispersum +
pinnate +  and pinnatisect +
20 cm200 mm <br />0.2 m <br /> (70 cm700 mm <br />0.7 m <br />) +
5 cm50 mm <br />0.05 m <br /> (11 cm110 mm <br />0.11 m <br />) +
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 +
arching;erect +
narrowed +
0 cm0 mm <br />0 m <br /> (90 cm900 mm <br />0.9 m <br />) +
Sporulating all year. +
Amer. Fern J. +
not adaxially +  and grooved +
pubescent;glabrous;pubescent;scaly +
not clathrate +
pubescent +  and glabrous +
deltate +  and linear +
narrowly ovate +  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 +
1-2-forked +
pendent +, arching +  and erect +