Adiantum formosum R.Br.
Show more
Details
Adiantum formosum R.Br., Prodr. Fl. Nov. Holland. 155 (1810)
Adiantum formosum R.Br.
Biostatus
Indigenous, non-endemic
Wild
New Zealand
Political Region
Nomenclature
R.Br.
R.Br.
1810
155
ICN
Adiantum formosum R.Br.
species
Adiantum formosum
Lectotype (selected by Field 2020): Port Jackson [Sydney, Australia], R. Brown Iter Austral. 67, 1802-5, BM 001044143!
Classification
Subordinates
Vernacular names
Descriptions
Adiantum formosum R.Br.
Rhizome stout, far-creeping, paleate; stipites distributed along rhizome. Stipes stout, scabrid, purplish to almost black, polished, paleate towards base; 30-70-(90) cm. long. Rhachis and secondary rhachides stout, polished, dark brown to almost black, ± hispid to pubescent, ± flexuose. Lamina dark green, firm, glab. or sparsely hairy, broadly deltoid, 3-4- pinnate, 30-70-(90) × 30-50 cm. Primary pinnae alt., 15-30-(40) × 10-20-(30) cm.; lower deltoid to ovate-lanceolate, again pinnate to bipinnate; upper with basal shorter pinnae. Secondary pinnae up to 15 × 3 cm., ovate-lanceolate; tertiary pinnae up to 3 × 1 cm. Pinnules numerous, rather close-set, stalked, dimidiate-oblong to subrhomboid, up to 15 × 5 mm.; lower margin entire, straight to concave or concave- convex; upper margin with alt. shallow and rather deep crenate lobes. Sporangia in sinuses of shallow lobes, protected by lunulate to oblong-or orbicular-reniform reflexed margins 1·5-2 mm. long, c. 8 groups per pinnule.
Adiantum formosum R.Br.
n = 58
Adiantum formosum R.Br.
Rhizomes far-creeping, scaly. Stipes and rachises rough; midribs of pinnae hairy. Laminae broadly ovate, 35-80 × 20-50 cm, (3)-4-pinnate. Primary pinnae alternate, 8-12 on each side of rachis bearing secondary pinnae, and a terminal portion bearing undivided primary pinnae. Ultimate pinnules ± oblong or parallelogrammoid, 4-13 × 3-6 mm; stalk attached at proximal corner; upper and outer margins regularly lobed, lower and inner margins entire; upper surface glabrous, lower glabrous or hairy, both surfaces dark green. Indusia crescent-shaped with shallow sinuses, glabrous, up to 10 per pinnule on upper and outer margins.
Taxonomic concepts
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Adiantum formosum R.Br.
Collections
Notes
typification
Lectotype (selected by Field 2020): Port Jackson [Sydney, Australia], R. Brown Iter Austral. 67, 1802-5, BM 001044143!
Etymology
From the Latin formosus (handsome, beautiful), a reference to the perceived appearance of this species.
Metadata
56531242-cf04-4f9f-9f4b-a4e9f4d76497
scientific name
Names_Plants
1 January 2000
30 October 2019