The Liverwort Flora of the British Isles
The British Isles has one of the best known bryophyte floras in Europe, and the richness of the liverwort flora in western oceanic regions of Britain and Ireland is of worldwide significance. Nevertheless the extreme variability of many of the species has made identification notoriously difficult. This work is intended to enable both the amateur, whether beginner or more experienced, and the professional bryologist to determine the morphologically variable species more readily.
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Sphaerocarpales page 557
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absent acute antheridia antical lobe antical margin apex apical cell archegonia arcuate Asexual reproduction autoicous base base-rich bilobed bracteole bracts branches British Isles broadly rounded brownish bryophytes capsule cell walls cells long cells wide cilia concave convex cortical cells cuticle decurrent dentate Dioicous distally edentate erect erecto-patent Female bracts fertile ﬁeld ﬂagella gemmae gemmiferous green habitats hyaline imbricate incurved inﬂorescences inserted intercalary Ireland keel lamina leaf cells averaging leaf lobes leaf-length leafy shoots leaves liverworts lobule long with leafy Lophozia Lowland Macaronesia Male bracts Male inﬂorescences marginal cells mats moist monoicous montane narrow narrowly occasionally oil-bodies oval pale papillae paroicous perianth mouth perianths pigmented plane plants postical lobe procumbent Q bracts rarely recurved Rhizoids rocks rows Scapania scarcely sea-level seldom sinus slightly sometimes species spores Sporophytes stem strongly subalpine suberect subinvolucral suborbicular teeth terminal thalli thick-walled thickened thin trigones turfs underleaves usually ventral ventral scales weakly yellowish