Autoicous. Plants green to yellow-green, 2–5 (–10) cm tall, the uppermost 1–2 cm is annual growth. Rhizoids crimson, densely verrucose. Leaves erect when dry, little changed when moist; oblong-lingulate to narrowly lanceolate, 1.5–3.0 mm long, 0.4–0.5 mm wide, broadly carinate; margin entire; costa c. 150 µm wide at base; laminal cells short-rectangular, increasing in size from 20–30 × 10 µm apically to 40–60 × 15–20 µm at the base. Axillary hairs to 200 mm long, with 2 or 3 rectangular reddish basal cells and 1 elongate hyaline apical cell.
Androecia discoid. Setae reddish brown, flexuose, 1.5–4.0 cm tall. Capsules pyriform, c. 2 mm long and 0.8–1.0 mm wide, curved and gibbous, with the peristome at right angles to ground. Peristome pale; cilia rudimentary or absent. Spores green or brown, 40–55 µm diam., densely covered with fine papillae and ridges.
Usually with large numbers of sporophytes when fertile.
Found in New Zealand and Australia. In Australia, in New South Wales, Australian Capital Territory and Victoria.
Occurs in scattered colonies in bogs, often with Sphagnum, in open grassland amid subalpine sclerophyll forest.
Meesia muelleri Müll.Hal. & Hampe, Linnaea 28: 208 (Sept. 1856). Type: Cobberas Mountain, [Vic.], 1854, F.Mueller; holo: BM (Herb. Hampe) n.v.; iso: MEL n.v., NSW 366234.
Taxonomic synonym
Meesia macrantha Mitt., Hooker’s J. Bot. Kew Gard. Misc. 8: 260 (Sept. 1856)., nom. illeg., based on same type as M. muelleri [placed in synonymy under M. muelleri by Mitten himself (Trans. & Proc. Roy. Soc. Victoria 19: 70, 1882)]. Type: Cobberas Mountains, [Vic.], F.Mueller; holo: NY (Herb. Mitten); iso: BM, MEL, NSW.
N.S.W.: Badja Sawmill, NE of Cooma, M. Mueller 2019 (AD, MEL); Swamp Caves, Kiandra Road, Yarrangobilly, W.W. Watts 8891 (NSW).
A.C.T.: Gibraltar Creek, Back Flat, L.G. Adams 1562 (CANB, NSW).
Vic.: Lankey Plain, Dargo High Plains, H. Streimann 53266 (CANB).
W.R. Buck, D.H. Vitt & W.M. Malcolm, Key to the Genera of Australian Mosses 97 (2002).
G.H.Bell & D.G.Catcheside (2012), Australian Mosses Online 43. Meesiaceae. Australian Biological Resources Study, Canberra. Version 13 June 2012.
First published as: G.H.Bell & D.G.Catcheside (2006), Meesiaceae, Fl. Australia 51: 182–186. Australian Biological Resources Study, Canberra & CSIRO Publishing, Melbourne.
Author - G.H. Bell & D.G. Catcheside
Editor(s) - P.M. McCarthy (2012); A.E. Orchard (March 2019)
Acknowledgements -
Contributors -
Cite this profile as: G.H. Bell & D.G. Catcheside (2020) Meesia muelleri. 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/Meesia%20muelleri [Date Accessed: 07 April 2025]