Thelypteris reptans

(J. F. Gmelin) C. V. Morton

Fieldiana, Bot. 28: 12. 1951.

Common names: Creeping star-hair fern
Illustrated
Basionym: Polypodium reptans J. F. Gmelin Syst. Nat. 2: 1309. 1791
Synonyms: Dryopteris reptans (J. F. Gmelin) C. Christensen Goniopteris reptans (J. F. Gmelin) C. Presl
Treatment appears in FNA Volume 2.

Stems creeping to suberect, 2–3 mm diam. Leaves somewhat dimorphic, evergreen, laxly arching or prostrate, sterile leaves often rooting at attenuate apices or along rachises, mostly (10–) 15–55 cm, fertile leaves more erect and with longer petioles, not rooting, with more contracted pinnules. Petiole green, 1–25 cm × 0.5–1 mm, at base sparsely set with brown, lanceolate, stellate-hairy scales. Blade usually 10–30 cm, pinnate in proximal half only or throughout, narrowed distally to pinnatifid apex. Pinnae entire to crenate to shallowly lobed ca. 1/3 of width, 1–2.5 (–5) × 0.3–1 (–1.5) cm, sometimes subcordate at base; proximal pairs from adjacent segments usually united with excurrent vein or veins free. Indument abaxially of stellate, forked, and needlelike hairs on rachises, costae, veins, and blade tissue; blade tissue adaxially also with stellate hairs. Sori round, medial to supramedial; indusia minute or lacking; sporangia with stellate hairs. 2n = 144.


Habitat: Limestone rocks and grottoes, damp woods
Elevation: 0–50 m

Distribution

V2 100-distribution-map.gif

Fla., s Mexico, West Indies, Central America in Guatemala, South America in n Venezuela

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Thelypteris reptans"
pinnatifid +  and attenuate +
reduced +
Alan R. Smith +
(J. F. Gmelin) C. V. Morton +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
subcordate +
0.3cm;1cm +
Polypodium reptans +
narrowed +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Creeping star-hair fern +
Fla. +, s Mexico +, West Indies +, Central America in Guatemala +  and South America in n Venezuela +
0–50 m +
glandular +  and hairy +
not continuous +
Limestone rocks and grottoes, damp woods +
branched +  and simple +
transparent +
ephemeral +  and persistent +
round-reniform +
not rooting +  and rooting +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
evergreen +
erect +, prostrate +  and arching +
fertile +  and sterile +
15 cm150 mm <br />0.15 m <br /> (55 cm550 mm <br />0.55 m <br />) +
reticulate +  and echinate +
1 cm10 mm <br />0.01 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
short-stalked +  and sessile +
not +  and reduced +
Fieldiana, Bot. +
stellate-hairy +
lanceolate +
Illustrated +
hairy +  and glabrous +
0.15 cm1.5 mm <br />0.0015 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
creeping;suberect +
Dryopteris reptans +  and Goniopteris reptans +
Thelypteris reptans +
Thelypteris subg. Goniopteris +
species +
crescent--shaped +
furcate +  and stellate +
on rock +  and terrestrial +