Amblovenatum queenslandicum

Thelypteridaceae

Amblovenatum queenslandicum (Holttum) T.E.Almeida & A.R.Field

Link to Australian Plant Name Index for publication details and synonyms: https://id.biodiversity.org.au/name/apni/51347226

Rhizome erect, to c. 2.5 cm diam., scaly; scales to 10 mm long, 2 mm wide, rigid, brittle, dark brown. Fronds tufted, to c. 1 m long. Stipe to 36 cm long, stramineous, glabrescent. Lamina 1-pinnate, ovate, to c. 70 cm long, dark green; basal pinnae 6.5–8 cm long, 1–1.5 cm wide; next few pairs of pinnae the widest, 12–14 (–18) cm long, 1.4–1.9 (–3.2) cm wide, deeply lobed to 1.25–2 mm from costa (c. seven-eighths the distance to costa); basal lobes of middle and sometimes lower pinnae often elongate; costules c. 4 mm apart; veins 6–11 pairs; basal vein from adjacent costules uniting to form a short excurrent vein, or on distal parts of a pinna meeting at the sinus; rachis on both surfaces bearing many c. 1 mm long acicular hairs; similar hairs on costae, costules, veins and between veins, 0.3–0.7 mm long, with sparse small colourless short-stalked spherical glands. Sori ±medial on veins; indusium rounded-reniform, c. 0.5 mm diam., bearing many slender 0.2–0.25 (–0.5) mm long erect acicular hairs; sporangia with a gland-tipped 3-celled hair on stalk. 

Endemic to the Wet Tropics of NE QLD between Bloomfield and Johnstone Rivers.

Terrestrial on banks in lowland to upper montane mesic vine forest.