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By A. J. E. Smith

This ebook describes and illustrates the 760 species of mosses presently recognized to ensue within the British Isles and comprises the main updated info to be had on type and nomenclature, together with contemporary synonyms. The descriptions offer info on frequency, ecology, geographical relationships and distribution, together with info on secure species and people species in danger. This moment version comprises the very significant advances in our wisdom of mosses remodeled the final region of the 20 th century and should supply a different source for all fascinated by those interesting organisms. First variation Hb (1978): 0-521-21648-6 First version Pb (1980): 0-521-29973-X

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163) Leaf margins recurved below or at middle, capsules not strumose 129 129 Costa 2-winged on abaxial side above, basal cells linear with sinuose walls 78. Grimmia (p. 427) Costa not 2-winged, basal cells shorter, walls not sinuose 130 130 Capsules exserted, cells papillose or smooth, walls not sinuose 58. Didymodon (p. 315) Capsules immersed, cells usually smooth, walls ± sinuose 77. Schistidium (p. 399) 131 Leaf margins entire, bases not sheathing 132 Leaf margins denticulate or dentate at least above or if entire then bases sheathing 136 132 Cell lumens ± quadrate, capsules exserted, peristomes single 133 Cell lumens ± rounded, capsules immersed, emergent or exserted, usually striate, peristomes double 134 133 Mid-leaf cells 10–14 μm wide 28.

167) Leaf cells 20–40 μm wide capsules with hypophysis 93. Tayloria (p. 514) 98 Leaves ovate-lanceolate to broadly ovate, capsules exserted 58. Didymodon (p. 315) Leaves lingulate or narrowly lingulate to narrowly lanceolate or if ovate then capsules immersed 99 99 Leaves lingulate-lanceolate to lanceolate or ovate, capsules immersed, plants occurring within flood zone of streams and rivers 77. Schistidium (p. 399) Leaves lingulate or narrowly lanceolate, capsules exserted, plants of dry rocks 78.

896) Plants dioicous, slender or robust, stem leaves ovate lanceolate to broadly ovate, capsules erect and straight or inclined and curved, lid rostrate, common plants 205. Hypnum (p. 898) 276 Secondary stems erect, dendroid, with terminal cluster of branches 134. Climacium (p. 709) Stems not dendroid, branches not in terminal clusters 277 277 Stems tomentose with abundant paraphyllia or rhizoids 278 Paraphyllia and/or rhizoids if present not forming tomentum 279 278 Stems irregularly branched, leaf cells smooth 172.

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