Davallia embolostegia Copel.

Family

Davalliaceae

Nomenclature

Davallia embolostegia Copel., Philipp. J. Sci. 1(Suppl. 2): 147, t. 3. 1906; Nooteboom, Fl. Males., Ser. II, Ferns and Fern Allies 3: 253. 1998; Boonkerd et al., Thai For. Bull. (Bot.) 32: 8. 2004. – Wibelia embolostegia (Copel.) M.Kato & Tsutsumi, Acta Phytotax. Geobot. 59(1): 13. 2008. – Syntypes: Copeland 1914, Elmer 6005, Merrill 3715, Borden 1343, Whitford 1010 all from Philippines, Luzon.

Description

Description adapted from Nooteboom, Fl. Males., Ser. II, Ferns and Fern Allies 3: 253. 1998.
Rhizome 10–15 mm diam. (not including scales), not waxy white. Scales brown or red-brown with pale border, evenly narrowing to apex, curling backwards or not, no multispetate hairs, toothed, basifixed with cordate base and greatly overlapping, 5–20 mm long. Stipes pale, adaxially grooved, 15–60 cm long, glabrous or with few scales. Laminae tripinnate towards the base and middle, deltoid and broadest towards the base, glabrous, 60–100 x 40–70 cm. Pinnae deltoid; longest pinnae 8–45 x 5–30 cm; pinnules of at least the larger pinnae anadromous, narrowly ovate; longest pinnules 10–80 x 5–20 mm; ultimate segments or lobes obtuse or acute, without a tooth; lamina axes glabrous (or nearly so). Veins in sterile ultimate segments frequently simple, not reaching the margin. Sori separate, often single on a segment at the bending point of a vein. Indusium scaly, attached at the narrow cordate base only, reniform , 0.1–0.4 x 0.4–0.7 mm.

Distribution in Thailand

EASTERN: Nakhon Ratchasima.

Wider Distribution

Malesia and the western Pacific.

Ecology

Epiphytic, rarely lithophytic , in evergreen forest.

Proposed IUCN Conservation Assessment

Least Concern (LC). This species is widespread and not under any known threat.

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