Common name: Japanese lady fern
Deparia petersenii subsp. congrua (Brack.) M.Kato APNI* Synonyms: Lunathyrium japonicum (Thunb.) Sa.Kurata APNI*
Deparia petersonii subsp. congrua APNI*
Lunathyrium petersenii (Kunze) H.Ohba APNI*
Lunathyrium petersenii subsp. congrua APNI*
Description: Rhizome long-creeping, c. 5 mm thick, scaly; scales brown, thin, broad, entire.
Fronds crowded. Stipe 20–50 cm long, scaly at the base. Lamina 1-pinnate-pinnatifid, 20–40 cm long, 10–18 cm wide, brittle, pinnatifid and tapered apically; lower pinnae stalked; upper pinnae sessile; longest pinnae central, 7–10 cm long, 1.5–2.5 cm wide, lobed almost to the veins. Lobes broadly obtuse; apical part of pinnae drawn out into a lobed, tapered cauda; main rachis with numerous septate hairs; lower surface scaly; veins simple or forked.
Sori elongate, medial on the veins, often paired back to back; indusium thin, entire.
Distribution and occurrence: Occurs in eastern Qld (south of the Atherton Tableland), eastern N.S.W., Lord Howe Island and eastern Vic.; also in Malesia, Polynesia and on Norfolk Is. Grows in a range of habitats but frequently forms large colonies in or close to stream banks and damp rock faces and crevices.
NSW subdivisions: NC, CC, NT
Other Australian states: Qld Vic.
Text by E.A. Brown
Taxon concept: Flora of Australia 48
| The single subspecies in NSW. Characters and distribution as for the species in NSW. |
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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