Australian Tropical Ferns and Lycophytes - Online edition

Amblovenatum terminans


Click/tap on images to enlarge
Close up of frond showing sori. © G. Sankowsky
Close up of frond showing sori. © CSIRO.
Frond. © G. Sankowsky
Frond. © G. Sankowsky
Habit. © CSIRO.
Family

Thelypteridaceae

Botanical name

Amblovenatum terminans (Hook.) J.P.Roux

Link to Australian Plant Name Index for publication details and synonyms: https://id.biodiversity.org.au/name/apni/51349393

Description

Rhizome long-creeping, 5–8 mm diam., scaly; scales brown, c. 8 mm long, 1 mm wide, hairy. Fronds c. 1.5 m long. Stipe c. 50 cm long, glabrous. Lamina 1-pinnate, to 50 cm long; pinnae to 25 pairs; largest pinnae c. 17–20 cm long, 1.7–2 cm wide; middle pinnae broadly cuneate to truncate at base, lobed to one-third of distance to costae; lobes as wide as long, with broad, antrorse tips; veins 6–9 pairs; basal veins spreading at a broad angle to costules, uniting to form an excurrent vein to the sinus; next veins oblique, 1 or 2 ending beside the sinus membrane; lower surface of rachis, costae, costules and veins bearing short acicular hairs; glands on distal veins in pinna lobes subsessile, spherical. Sori close to margins of lobes, not on lower veins; indusium thin, pale brown, often with some acicular hairs and a few small glandular hairs. 

Distribution

Torres Strait to Herbert River in NE QLD. Also in Malesia.

Habit and habitat

Terrestrial in lowland or lower montane mesic vine forest.

Citation of Australian Tropical Ferns and Lycophytes

Field AR, Quinn CJ, Zich FA (2022) Australian Tropical Ferns and Lycophytes. apps.lucidcentral.org/fern/text/intro/index.htm (accessed online INSERT DATE).

Field AR, Quinn CJ, Zich FA (2022) ‘Platycerium superbum’, in Australian Tropical Ferns and Lycophytes. apps.lucidcentral.org/fern/text/entities/platycerium_superbum.htm (accessed online INSERT DATE).

Copyright © Australian Tropical Herbarium 2022, all rights reserved.