Abstract
Abstract Investigations of deposits at a built-over site near the centre of Liverpool disclose a basal stratigraphic sequence characteristic of the west-European Late-glacial period. Detailed pollen analyses confirm that the deposits extended from the Late-glacial (Zone I) to the Post-glacial thermal maximum (Zone VII a). The lake was overgrown in Zone VI by floating sphagna , and in Zone VII a typical raised bog developed. Macroscopic remains of lake and fen plants were recovered in great abundance and together with frequent non-tree pollen these permitted a detailed reconstruction of the vegetational history of both the lake and the surrounding upland. Several species of notably disjunct or restricted present-day range have been recorded here, Cotoneaster cf. integerrima Medic., Elatine hexandra (Lapierre) D.C., Lycopodium annotinum L., Pilularia globulifera L., and Linum anglicum Mill., whilst tentative identification of species such as Agropyron junceiforme, A. & D. Löve, Gentiana campestris (L.), Lotus uliginosus Schkuhr, and Vicia sepium L. cast new light on the natural status of other British plants. Numerous further records confirm and extend our knowledge of the history of the British flora, especially in the Late-glacial and early Post-glacial periods.
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Claims 7
Claim · model-written summary
Deposits near central Liverpool contained a basal stratigraphic sequence characteristic of the west-European Late-glacial.
Verbatim
e0“Investigations of deposits at a built-over site near the centre of Liverpool disclose a basal stratigraphic sequence characteristic of the west-European Late-glacial period.”
t0“British vegetation”
Claim · model-written summary
Pollen analysis dated the deposits from Zone I to Zone VII a.
Verbatim
e0“Detailed pollen analyses confirm that the deposits extended from the Late-glacial (Zone I) to the Post-glacial thermal maximum (Zone VII a).”
t0“British vegetation”
Claim · model-written summary
Floating sphagna overgrew the lake in Zone VI.
Verbatim
e0“The lake was overgrown in Zone VI by floating sphagna , and in Zone VII a typical raised bog developed.”
Claim · model-written summary
A typical raised bog developed in Zone VII a.
Verbatim
e0“The lake was overgrown in Zone VI by floating sphagna , and in Zone VII a typical raised bog developed.”
t0“British vegetation”
Claim · model-written summary
Abundant lake and fen plant remains and non-tree pollen enabled reconstruction of lake and upland vegetation history.
Verbatim
e0“Macroscopic remains of lake and fen plants were recovered in great abundance and together with frequent non-tree pollen these permitted a detailed reconstruction of the vegetational history of both the lake and the surrounding upland.”
Claim · model-written summary
Cotoneaster cf. integerrima Medic., Elatine hexandra and Lycopodium annotinum were recorded at the site despite restricted or disjunct present ranges.
Verbatim
e0“Several species of notably disjunct or restricted present-day range have been recorded here, Cotoneaster cf. integerrima Medic., Elatine hexandra (Lapierre) D.C., Lycopodium annotinum L., Pilularia globulifera L., and Linum anglicum Mill.”
Claim · model-written summary
Pilularia globulifera and Linum anglicum were recorded at the site despite restricted or disjunct present ranges.
- Taxon
- Pilularia globulifera L.
Pilularia globuliferae0 - Outcome
- have been recorded heree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Several species of notably disjunct or restricted present-day range have been recorded here, Cotoneaster cf. integerrima Medic., Elatine hexandra (Lapierre) D.C., Lycopodium annotinum L., Pilularia globulifera L., and Linum anglicum Mill.”