Flora of New Zealand Mosses
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FLORA OF NEW ZEALAND MOSSES BRYACEAE A.J. FIFE Fascicle 19 – AUGUST 2015 © Landcare Research New Zealand Limited 2015. Unless indicated otherwise for specific items, this copyright work is licensed under the Creative Commons Attribution 4.0 International license Attribution if redistributing to the public without adaptation: “Source: Landcare Research" Attribution if making an adaptation or derivative work: “Sourced from Landcare Research" See Image Information for copyright and licence details for images. CATALOGUING IN PUBLICATION Fife, Allan J. (Allan James), 1951- Flora of New Zealand [electronic resource] : mosses. Fascicle 19, Bryaceae / Allan J. Fife. -- Lincoln, N.Z. : Manaaki Whenua Press, 2015. 1 online resource ISBN 978-0-478-34789-0 (pdf) ISBN 978-0-478-34747-0 (set) 1.Mosses -- New Zealand -- Identification. I. Title. II. Manaaki Whenua-Landcare Research New Zealand Ltd. UDC 582.344.82(931) DC 588.20993 DOI: 10.7931/B1301B This work should be cited as: Fife, A.J. 2015: Bryaceae. In: Heenan, P.B.; Breitwieser, I.; Wilton, A.D. Flora of New Zealand - Mosses. Fascicle 19. Manaaki Whenua Press, Lincoln. http://dx.doi.org/10.7931/B1301B Cover image: Rosulabryum subtomentosum, habit with capsules. Drawn by Rebecca Wagstaff from J.E. Beever 32-38a, CHR 406070. Contents Introduction..............................................................................................................................................1 Typification...............................................................................................................................................1 Taxa Bryaceae .......................................................................................................................................... 4 Bryum Hedw. ................................................................................................................................... 10 Bryum algovicum Müll.Hal. .............................................................................................................. 12 Bryum algovicum var. rutheanum (Warnst.) Crundw. ...................................................................... 12 Bryum amblyodon Müll.Hal. .............................................................................................................13 Bryum appressifolium Broth. ........................................................................................................... 14 Bryum argenteum Hedw. ................................................................................................................. 15 Bryum caespiticium Hedw. .............................................................................................................. 17 Bryum clavatum (Schimp.) Müll.Hal. ............................................................................................... 18 Bryum coronatum Schwägr. ............................................................................................................ 21 Bryum crassum Hook.f. & Wilson .................................................................................................... 23 Bryum creberrimum Taylor .............................................................................................................. 24 Bryum dichotomum Hedw. ...............................................................................................................25 Bryum duriusculum Hook.f. & Wilson .............................................................................................. 27 Bryum funkii Schwägr. ..................................................................................................................... 29 Bryum harriottii R.Br.bis ...................................................................................................................30 Bryum laevigatum Hook.f. & Wilson ................................................................................................ 31 Bryum mucronatum Mitt. ................................................................................................................. 33 Bryum pallescens Schwägr. ............................................................................................................ 34 Bryum preissianum Hampe ............................................................................................................. 35 Bryum pseudotriquetrum (Hedw.) P.Gaertn., E. Meyer & Scherb. ...................................................36 Bryum radiculosum Brid. ................................................................................................................. 38 Bryum rubens Mitt. .......................................................................................................................... 38 Bryum ruderale Crundw. & Nyholm ................................................................................................. 39 Bryum sauteri Bruch & Schimp. .......................................................................................................40 Bryum tenuidens Dixon & Sainsbury ............................................................................................... 41 Bryum tenuisetum Limpr. .................................................................................................................42 Plagiobryum Lindb. ..........................................................................................................................42 Plagiobryum novae-seelandiae Broth. .............................................................................................43 Rosulabryum J.R.Spence ................................................................................................................44 Rosulabryum billardierei (Schwägr.) J.R.Spence ............................................................................ 45 Rosulabryum campylothecium (Taylor) J.R.Spence ........................................................................47 Rosulabryum capillare (Hedw.) J.R.Spence .................................................................................... 48 Rosulabryum perlimbatum (Cardot) Ochyra ....................................................................................49 Rosulabryum subtomentosum (Hampe) J.R.Spence ...................................................................... 50 References ........................................................................................................................................... 53 Conventions ..........................................................................................................................................57 Acknowledgements ...............................................................................................................................59 Plates ....................................................................................................................................................60 Maps .....................................................................................................................................................86 Index .....................................................................................................................................................88 Image Information .................................................................................................................................90 Introduction The Bryaceae are a very large and cosmopolitan family with a well-deserved reputation for taxonomic intractability. They are erect plants growing mostly on soil or rock, usually with nodding capsules and well-developed double peristomes. The singly-costate leaves can be variable in form, but they are usually bordered and reflexed at the margins and have hexagonal or rhombic-hexagonal laminal cells. The occurrence and variability of asexual reproductive structures, if present, are often employed to characterise species or species complexes, particularly in Bryum, which is by far the largest genus. A modest number of common species can be readily identified by easily observed gametophytic features. One such common and distinctive taxon has often been regionally termed Bryum billardierei var. platyloma. For complex reasons, the most appropriate name for this taxon is considered here to be Rosulabryum subtomentosum. The recognition of many species requires microscopic examination, often including peristome detail. The beginning student, wishing to come to grips with the more distinctive members of this family, would do well to collect and examine ample and fruiting material only. Little consensus exists concerning the generic boundaries within the family or even the limits of the family itself. Recent proposed changes to generic limits are due mostly to the incorporation of molecular analyses, which will no doubt continue in the future. The Bryaceae are here conceived in a fairly narrow sense, and are considered to include (in N.Z.) three genera: Bryum, Plagiobryum, and Rosulabryum. A total of 30 species are accepted for N.Z. The generic concepts employed here differ substantially from those presented in a recent treatment of the family for Australia, which recognised eight genera. Several genera included in the family by earlier Australasian workers, namely Leptobryum, Leptostomum, Orthodontium, Pohlia, and Schizymenium, as well as Ochiobryum, are here excluded from the Bryaceae. Typification The following typifications are designated in accordance with the International Code of Nomenclature for Plants, Algae and Fungi.