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The rarest
plant found this year was the Red Data Book species Smooth Rupturewort,
Herniaria glabra L. This species is considered a native of East
Anglia and Lincolnshire, where it grows on disturbed, compacted soils
in gravel pits, car parks, golf courses and along rides in forestry plantations.
It is one of the success stories of recent years, having spread right
across the country, as the maps in the forthcoming Atlas of the Flora
of Britain and Ireland will doubtless show. Rob Stokes found it in a typical
habitat, in the car park by the Montgomery Canal at Queen's Head, SJ33882681,
at the start of the Botanical Society's meeting there on 14th July 2001
(Herb. SFG). About twelve plants were present, with a revealing selection
of associates, including Sweet Alison, Lobularia maritima, the
Lady's-mantle Alchemilla mollis, Procumbent Yellow-sorrel, Oxalis
corniculata, Lamb's-ear, Stachys byzantina and Garden Lobelia,
Lobelia erinus.
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Specimen of Herniaria glabra
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Rob also
found Stinking Tutsan, Hypericum hircinum L., at The Moors,
Ellesmere, in a patch of scrub by the entrance to the Oteley Estate, SJ410342
(conf. S.J. Whild, Herb. SFG).
Finally,
Rob Stokes also spotted Garden Speedwell, Veronica longifolia
L., on the cliff below Bridgnorth Castle, SO717927, on August 1st. This
species, which is commonly grown in gardens, has not previously been recorded
as naturalised in the county.
The hybrid
sedge Carex x elytroides Fr., C. acuta L., Slender
Tufted-sedge, x C. nigra (L.) Reichard, Common Sedge,
was found by Kate Thorne on a farm near Edgerley, SJ348181, in August
2001. A specimen has been confirmed by Clive Jermy and is in Hb. SFG.
It was growing in an inundation community not far from the River Severn,
in an area that is flooded each winter. C. acuta is a particularly
interesting plant in Shropshire, having been recorded in the past around
several meres, but it does not seem to grow there now - we can only find
it along the Severn. Possibly the old records are all errors.
Another
invader is Reflexed Saltmarsh-grass, Puccinellia distans
(Jacq.) Parl., which was found by John Mason on the side of the A5 at
Overley Hill (SJ610104) on 2nd July 2001 (Herb. SFG). This has followed
the now well-established Cochlearia danica along the salt-treated
trunk roads, and had already spread for miles by summer. Collecting specimens
is a hazardous process, however, so it will probably remain under-recorded.
This is not quite a first county record, as it has been recorded twice
in the past: Isaac Watkin, in his History of the Parish of Llanyblodwell,
ca. 1900, gave Sclerochloa distans as one of the species on the
farm at Blodwel Hall (SJ22), and Lloyd & Rutter, in their Handlist
of the Shropshire Flora, 1957, say that there is "one old record,
from Shrewsbury;" but they are probably both errors.
Lesser
Hairy-brome, Bromopsis benekenii (Lange) Holub, is an altogether
more native species of the county. There is an old record for it on the
Wenlock Edge by Augustin Ley, in 1909, and another tentative record by
Charles Sinker in 1963, possibly in the same place, at Harton Hollow,
SO482878. It was with some surprise that Sarah Whild found it again at
Harton Hollow on 23rd June 2001, in some abundance. A specimen sent to
Clive Stace for confirmation is in the herbarium at the University of
Leicester (LTR).
It is quite similar in appearance to Hairy Brome, Bromopsis ramosa
(Hudson) Holub, but smaller, being about the same size as False-brome,
Brachypodium sylvaticum (Hudson) P. Beauv. The three tend to grow
together. Once you are aware of the differences, they do appear to be
quite distinct, but the diagnostic characters are not completely exclusive:
B. benekenii tends to have three lower spikelets each with
just one or two flowers, whereas B. ramosa has two spikelets
with more flowers; the hairiness of the leaf sheaths is also a character,
but is not always consistent. Some authorities consider B. benekenii
to be merely a subspecies, and the taxonomy is under review.
Natasha
Coombs found Arum italicum ssp. italicum, Italian Lords-and-Ladies,
in a hedgerow at Radbrook, Shrewsbury, SJ481116, det. S.J. Whild, on 31st
March 2001. This appears to be a first county record for what is probably
a common garden escape.
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