# Characeae of Britain and Ireland

The Characeae or stoneworts are a family of green algae. This is a partial list of species found in Britain and Ireland.

## British Isles

Ref: Stewart & Church (1992).
* Chara baltica Bruz.
* Chara canescens Desv. & Lois.
* Chara connivens Salzm. ex A.Braun
* Chara curta Nolta ex Kütz. (=C. aspera var. curta)
* Chara denudata (A.Braun) R.D.Wood
* Chara fragifera Durieu
* Chara intermedia Braun (=C. papillosa Kütz. and C. contraria x hispida)
* Chara mucosa J.Groves & Bullock-Webster
* Chara rudis (A.Braun) Leonh.
* Chara tomentosa L.
* Lamprothamnium papulosum (Wallr.) J.Groves
* Nitella capillaris (Krocker) J.Groves & Bullock-Webster
* Nitella gracilis (Smith) Agardh
* Nitella hyalina (DC.)Agardh
* Nitella mucronata (A.Braun)Miquel
* Nitella spanioclema J.Groves & Bullock-Webster (Nitella flexilis var. spanioclema (J.Groves & Bullock-Webster))
* Nitella tenuissima (Desv.) Kütz.
* Nitellopsis obtusa (Desv.) J.Groves
* Tolypella intricata (Trent. ex Roth) Leonh.
* Tolypella nidifica (O.F.Müll.) Leonh. (=Tolypella nidifica var. nidifica)
* Tolypella prolifera (Ziz. ex A.Braun) Leonh.

## Ireland

* County Antrim
** Chara aspera var. aspera
** Chara globularis var. globularis
** Chara vulgaris var. papillata Wallr. ex A. Braun
** Chara globularis var. virgata (Kützing) R.D.Wood
** Chara vulgaris var. vulgaris
** Chara vulgaris var. contraria (A.Braun ex Kützing) J.A. Moore
** Chara vulgaris var. longibracteata (Kützing) J. Groves & Bullock-Webster
** Chara vulgaris var. papillata Wallr. ex A. Braun
** Nitella flexilis var. flexilis
** Nitella translucens (Pers.) C.A. Ag.
** Tolypella nidifica var. glomerata (Desv.) R.D.Wood
* County Down
** Chara aspera var. aspera
** Chara aspera var. curta (Nolte ex Kützing) Braun ex Leonh.
** Chara globularis var. globularis
** Chara vulgaris var. papillata Wallr. ex A. Braun
** Chara globularis var. virgata (Kützing) R.D.Wood
** Chara globularis var. annulata (Lilleblad) J.A.Moore
** Chara hispida L.
** Chara hispida var. hispida
** Chara hispida var. major (Hartm.) R.D. Wood
** Chara hispida var. rudis A. Braun
** Chara pedunculata Kützing
** Chara vulgaris var. vulgaris
** Chara vulgaris var. contraria (A.Braun ex Kützing) J.A. Moore
** Chara vulgaris var. longibracteata (Kützing) J. Groves & Bullock-Webster
** Chara vulgaris var. papillata Wallr. ex A. Braun
** Nitella flexilis var. flexilis
** Nitella translucens (Pers) C.A. Ag.
** Tolypella nidifica var. glomerata (Desv.) R.D.Wood
* County Londonderry
** Chara aspera Deth. ex Willd. var. aspera
** Chara vulgaris var. papillata Wallr. ex A. Braun
** Chara globularis var. globularis
** Chara globularis var. virgata (Kützing) R.D.Wood
** Chara hispida L.
** Chara hispida var. hispida
** Chara vulgaris var. vulgaris
** Chara vulgaris var. contraria (A.Braun ex Kützing) J.A. Moore
** Chara vulgaris var. papillata Wallr. ex A. Braun
** Nitella flexilis var. flexilis
** Nitella translucens (Pers) C.A. Ag.
** Tolypella nidifica var. glomerata (Desv.) R.D.Wood
* County Mayo.Recent records have been published from Clare Island.
** Chara virgata Kützing
** Nitella flexilis (Linnaeus) C.Agardh
** Nitella translucens (Persoon) C.Agardh