32
RECORDER REPORTS FOR 1998
New Charophyte (Stonewort) and Bryophyte Records
K.J. ADAMS
Dept. Life Sciences, University of East London E15 4LZ.
Charophytes
The following new records for the county have been added to the data base since publication of the
Stoneworts of Essex: An interim account, and the 1997/8 supplementary list (Adams, 1997 &
Adams 1998), In Essex Naturalist 14: 115-142 and 15: 55.
Chara vulgaris var. vulgaris
TL(51)51 522,101 19 High Laver, reservoir at Faggoter's Farm, August 1998.
Coll: & det: Shirley & Charles Watson.
Chara vulgaris var. longibracteata
TL(52)52 528,200 19 Gt Hallingbury, Beggars Hall fishing lake, with Chara
globularis var. globularis. August 1998. Shirley & Charles
Watson.
TL(52)60 621,092 19 Roxwell, Skreens Wood, deep water-filled rut. typical old
tatty but fertile plants of var. longibracteata with very long
bracteoles and supine'var. vulgaris' shoots with very short
bracteoles and spine cells, and var. longibracteata-like shoots,
arising from the same plants. A clear indication that these arc
interchangeable environmentally induced expressions' rather
than genetically distinct varieties. 13 September 1998, Coll:
Martin Heywood det: K.J.Adams.
634.081 19 Roxwell, dense mat covering the bed of the moat at Tye Hall
Farm, following desilting in October 1997. A form with well
developed bracteoles and adaxial bract cells, but with vestigial
abaxial bract cells and with stipuloides and spine cells hardly
developed, the longest spine cell being no more titan the width
of a secondary cortex row (KJA). 24 July 1999. Coll: Martin
Heywood
Chara vulgaris var. papillata
TQ(51)58 513,853 18 Dagenham, The Chase, Easterbrook End Country Park,
abundant in shallow pools just north of the railway. Bracteoles
and bract cells as var. vulgaris but spine cells just below the
nodes long, supine and deciduous. 20 June 1999. K.J.Adams et
EFC.
Chara vulgaris var. hispidula
Essex Naturalist (New Series) 16 (1999)