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Tolypella intricata:

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The Essex Records 1820 -2007.

Following the introductory paragraph to each taxon, the records are set out in columns. The first being the letter and alternative number (in brackets) code for the 100 x 100km square, followed by the 10 x 10km square number, arranged in conventional order from south to north, moving from west to east; the second column gives the 1 x 1km square or the 100 x 100m square Ordnance Survey grid reference if known; the third the vice county, and the final column the available details of the individual record. Approximate grid references for older records are suffixed by a?

Tolypella intricata (Trent. ex Roth) Leonh.

The two main groups of Tolypella are separated by the shape of the end cells of the branchlets. In T. intricata ( and T. prolifera) the end cells are conical and acute, whereas those of the T. nidifica agg. are blunt, the last few cells resembling a string of sausages. T. intricata differs from T. prolifera in being a more slender plant, having once divided sterile branchlets with 2-3 end rays. It is a sporadic plant that seldom appears in the same place twice, and often develops over winter, producing ripe oospores by Easter and then disintegrating.

TL(52) 63

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19

Ditch nr. Hempstead Wood, as Chara polysperma A.Br. 1861.George S.Gibson.

Flora of Essex p.406. 1862
         

TL(52) 81

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19

Kelvedon, pond,, 10 June 1877. Coll: Dr Ezekiel G.Varenne. ex herb: James Groves

B.E.C. Report Vol.l. p.12. 1877-78. Also two specimens Natural History Museum Herbarium (BM). Atlas Specimen No. 2327.
         

TL952) 83

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19

Twinstead. pond cleared 3 yrs previously, May & June 1918. Coll:

George C.Druce, redet: James Groves.

Not refound in 1919.

Cambridge Herbarium Originally misidentified by Druce as T. glomerata. Botanical exchange Club Report for 1918. p.411-412 & p.534. (CGE).