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New Flora of Sussex Report - March 2009
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We are doing pretty well but:
General comment We are doing pretty well but: We only have 2 more years to complete the bulk of the recording and we still have a lot to do to get the level of coverage we want (see later comments). We cannot afford to leave things to the last moment
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March 2009
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More detail Records On the computer: 252,300, up from 213,600 in early March 2008 (i.e. ~38,700 new records). Tetrads (Figures in blue are for last year, March 2008): 29 have >400 records ( 12 ) 207 have 300 to (139) 581 have 200 to (412) Only 10 have < 100 records
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Species accounts So far draft accounts written for over 1050 species
Drafts done for many large groups e.g. Brassicaceae, Fabaceae, Orchidaceae Drafts complete for some difficult groups e.g. Hieracium, Salix Work in progress on Cyperaceae,Juncaceae & Poaceae Some interesting distribution patterns are emerging: e.g. Verbascum nigrum. Why not E.Sussex? Not so odd if you look at National picture
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Where are the introductions?
Fraction of native species per tetrad 55% % % %
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interesting records Many already mentioned at autumn meeting, here are some more examples Equisetum sylvaticum By Bluebell railway P.J.Acock Galium parisiense Patcham A.Spiers Gnaphalium sylvaticum Scotland Knob P.Whitcomb Polygonum rurivagum Sovereign Harbour A.Spiers Prunus cerasus Near Cross in Hand D.Streeter Prunus cerasus Arlington J.Sellens Saxifraga tridactylites Robertsbridge SBRS Verbascum pulverulentum Adsdean M.Shaw A full list will appear in the May Newsletter
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general recording Take no. of records in all tetrads to over 200 and get over 400 tetrads to 300 or more (currently 236). Areas most in need of attention:
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2009 - Refinding old records
We need to do a lot of work to try to refind species which have apparently declined An Excel file will be available on the web site. Paper lists for any 10km square can also be supplied to those without internet access (examples for a few are available today). Please let us know which squares you would be prepared to search Sending in refound records When sending in small numbers of records (e.g. for refound species) there is a tendency to hide them in the middle of letters or s and often some piece of data is missing. Please use the standard forms wherever possible (ideally the Excel recording card) as it makes it less likely that information is omitted and makes the data far easier to process. Otherwise, please separate the records out at the end of the or letter
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Problem areas The weakest part of our recording so far has been the critical groups: Hieracium, Rubus & Taraxacum Hieracium Need to identify more records at species level (i.e. not just Hieracium agg.). Rod Stern is happy to act as referee and identify specimens. Only collect specimens if colony size permits. We also to need refind a number of old Hieracium records Rubus We have enlisted the help of an expert (David Allen) who is willing to make a few visits to Sussex. However he is busy with other projects so we will only be able to achieve a very sparse sampling. Taraxacum We cannot record these at species level. Therefore will as many of you as possible try to identify them at Section level. Use the keys in Stace or BSBI Dandelion Handbook. At section level they are no more difficult than many other groups. Many (but not all) of our robust plants belong to Sect. Ruderalia. Look out especially for the more delicate plants
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Recording request Wherever possible please record specific species/sub species for the following rather than just agg.. Sometimes you can't tell but in many cases you can - please take the time to do so if possible: Aphanes arvensis and A.australis Arctium minus and A.nemorosum Can be difficult but if all the flower heads at the end of the inflorescence branches are stalked then it's A.minus (assuming you have eliminated A.lappa). However they aren't it could be either - use the key. Arenaria serpyllifolia subsp. serpyllifolia and subsp. leptoclados Galium palustre subsp. palustre and subsp. elongatum (Easy - see key) Galeopsis bifida and G.tetrahit sens str. Veronica hederifolia subsp. hederifolia and subsp. lucorum (Care needed)
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New record cards A set of new record cards have been printed- the front is unchanged but there are a few changes to the species list on the back Deletion of a few rarely recorded species Addition of some rapidly increasing aliens (e.g. Conyza bilbaoana) Updating of some of the BRC codes Please change over to using these as soon as possible Both card and paper versions are available here (see side table) & also at field meetings through the year If you want more and can't get to a field meeting please send request with SAE (remember large letter stamp) to Alan Updated Excel record card also available from web site
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Thanks again for all you have done, it has been a fantastic effort so far. Have fun in who knows what you may find. Any questions?
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