Hedwigidium integrifolium (P.Beauv.) C.E.O.Jensen

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Description

Plants brown below, olive-green to pale yellow-green above. Stems intertwined and richly branched; stoloniferous stems present. Stem leaves erect to erecto-patent when dry, erect-spreading or spreading when moist, ovate-oblong to ovate-lanceolate, concave, 1.25–2.46 mm long, 0.57–1.04 mm wide; apex acute to acuminate, pigmented, rarely hyaline at the very tip; margin recurved, entire. Central basal laminal cells elongate, thick-walled, porose, ±papillose; cells 10–20 × 4–10 µm, becoming short-rectangular to isodiametric towards the apex, with thick slightly sinuous walls and numerous small simple papillae per cell, usually over the cell walls. Leaves of stoloniferous stems ovate, gradually tapering to an acuminate filiform apex, concave, plicate near the margin.

Perichaetia terminal; perichaetial leaves oblong, similar to stem leaves but much more elongate, with a very large section of smooth elongate laminal cells in the lower part of the leaf, not ciliate. Seta c. 1 mm long. Capsule ovoid, widest below the mouth, slightly grooved when dry, abruptly tapered to the neck; operculum rostrate. Spores 22–28 µm long, striolate.

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Diagnostic Features

Although Hedwigidium integrifolium is rather similar to Hedwigia ciliata, it invariably lacks the long, hyaline, leaf hairpoint, it has short setae, entire rather than ciliate perichaetial leaves, and simple rather than branched papillae on the laminal cells.

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Biostatus

Native.

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Habitat and Distribution

Occurs in all States and Territories (except Northern Territory). 

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Usually grows on rock, rarely on wood or on the ground. A cosmopolitan moss.

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Nomenclature And Typification

Hedwigia integrifolia P.Beauv., Prodr. Aethéogam. 60 (1805); Hedwigidium integrifolium (P.Beauv.) Dixon, Skand. Bladmossfl. 369 (1939). Type: Europe; n.v.

Taxonomic synonyms

Gymnostomum imberbe Sm., Engl. Bot. 32: 227 (1811); Hedwigidium imberbe (Sm.) Bruch & Schimp., in Bruch, Schimper & von Gumbel, Bryol. Europ. 3: 157 (1846); Hedwigia imberbis (Sm.) Spruce, Musc. Pyren. 263 (1847). Type: n.v.

Schistidium drummondii Taylor, London J. Bot. 5: 57 (1846); Neckera drummondii (Taylor) Müll.Hal., Syn. Musc. Frond. 2: 106 (1850); Hedwigia imberbis (Sm.) Spruce var. drummondii (Taylor) Wilson, in J.D.Hooker, Fl. Tasman. 2: 179 (1859); Hedwigidium drummondii (Taylor) A.Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1874–75: 173 (1876); Hedwigia drummondii (Taylor) Kindb., Enum. Bryin. Exot. 15 (1888). Type: Swan R., W.A., J.Drummond; holo; n.v.

Schistidium australe Wilson, London J. Bot. 5: 58 (1846), nom. inval. (in synon.)

Neckera emersa Müll.Hal. & Hampe, Linnaea 26: 502 (1853); Hedwigidium emersum (Müll.Hal. & Hampe) A.Jaeger, Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1874–75: 173 (1876); Hedwigia emersa Müll.Hal. & Hampe ex Kindb., Enum. Bryin. Exot. 15 (1888), nom. nud.; Harrisonia emersa Müll.Hal. & Hampe ex Paris, Index Bryol. 552 (1895), nom. nud. Type: Nova-Hollandia [Australia], coll. unknown; holo: n.v.

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Representative Herbarium Specimens

W.A.: Mount Chudalup Nature Reserve, 17 km SSE of Northcliffe, H.Streimann 54305 [Musci Austral. Exs. 339] (CANB).

S.A.: Saunders Ck, 6 km E of Springton, H.Streimann 54767 (CANB).

Qld: Paling Yard Ck, 22 km ESE of Stanthorpe, H.Streimann 52928A (CANB).

N.S.W.: Steeple Flat, 10 km SE of Nimmitabel, H.Streimann 2046 (CANB).

A.C.T.: Nursery Ck, 42 km SSW of Canberra, H.Streimann 31412 (CANB).

Vic.: Skeleton Hill, 4 km SE of Chiltern, H.Streimann 59379 (CANB).

Tas.: Mt Wellington, A.V.Ratkowsky H6 (CANB).

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Illustrations

G.O.K.Sainsbury, Bull. Roy. Soc. New Zealand 5: 332, pl. 5, fig. 2 (1955); G.A.M.Scott & I.G.Stone, Mosses of Southern Australia 357, pl. 68 (1976); D.G.Catcheside, Mosses of South Australia 296, fig. 178 (1980); D.Meagher & B.Fuhrer, A Field Guide to the Mosses and Allied Plants of Southern Australia 61 (2003).

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Source

Gilmore, S.R. (2012). Australian Mosses Online 4. Hedwigiaceae. Australian Biological Resources Study, Canberra. Version 10 April 2012. http://www.anbg.gov.au/abrs/Mosses_online/04_Hedwig.html

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© Copyright Commonwealth of Australia, 2023
Last updated: Peri Bolton; Jul 17, 2019 2:50 Status: Partial

Author - Scott R. Gilmore

Editor(s) - Pat M. McCarthy (2012)

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Cite this profile as: Scott R. Gilmore (2019) Hedwigidium integrifolium. In: Flora of Australia. Australian Biological Resources Study, Department of Climate Change, Energy, the Environment and Water, Canberra. https://profiles.ala.org.au/opus/boa/profile/Hedwigidium%20integrifolium [Date Accessed: 08 April 2025]