Chara horrida L.J.Wahlstedt
Chara horrida L.J.Wahlstedt 1862: 24
Published in: Wahlstedt, L. J. (1862). Bidrag till kjännedomen om de Skandinaviska arterna af växt-familjen Characeae. pp. 1-43. Lund.
Status of name
This name is of an entity that is currently accepted taxonomically.
Subgenus Chara Section Hartmania
Chara hispida subsp. horrida (Wahlstedt) A.Braun 1876
This is a brackish species.
(as Chara horrida L.J.Wahlstedt)
Swedish: Raggsträfse (Tolstoy & Österlund 2003).
The plants are up to 30 cm long, green, unencrusted. The axis is up to 1 mm in diameter. The branchlets are 7-10 in each whorl, each with 5-8 segments. The stem cortex is diplostichous, aulacanthous. The spine cells are longer than the stem diameter, 2-6 together of which some can be very short. The plants are very spiny. The stipulodes are in 2-3 irregular rows. The posterior bract cells are as long as the anterior bract cells. The species is monoecious. Gametangia are not common. Oogonia are large and up to 1.3 mm long. The oospore is black. The antheridia are red and up to 500 m in diameter. Chara horrida can be difficult to separate from C. baltica. C. horrida has ecorticated end segments which always are short, while they are elongated in C. baltica.
Chara horrida is a brackish water species, and is found in water with salinity between 5.5 and 8 PSU. It grows on soft bottom, down to 3 m depth. The species has low fertility, and sterile specimens are common. Fertile plants are found from June to September. Oospores are rare.
Type locality: Europe (Silva 1996-to date).
Blume, M., Blindow, I., Dahlke, S. & Vedder, F. (2009). Oospore variation in closely related Chara taxa. Journal of Phycology Journal of Phycology(5): 995-1002.
Borisova, O.V. (2015 '2014'). Charales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 4: Charophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 454-465. Ruggell: Koeltz Scientific Books.
Nowak, P. & Schubert, H. (2019). Genetic variability of charophyte algae in the Baltic Sea area. Botanica Marina 62(1): 75-82.
Schneider, S.C., Rodrigues, A., Moe, T.F. & Ballot, A. (2015). DNA barcoding the genus Chara: molecular evidence recovers fewer taxa than the classical morphological approach. Journal of Phycology 51(2): 367-380.
Schubert, H & Blindow, I. (2004). Charophytes of the Baltic Sea. . Ruggell: A.R.G. Gantner Verlag Kommanditgesellschaft.
Urbaniak, J. & Gabka, M. (2014). Polish Charophytes. An illustrated guide to identification. pp. -120. Wroclaw: Uniwersytet Przyrodniczy we Wroclawiu.
Created: 20 November 2003 by M.D. Guiry
Verified by: 21 March 2019 by Wendy Guiry
Accesses: This record has been accessed by users 898 times since it was created.
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(Please note: only references with the binomials in the title are included. The information is from the Literature database.)
Boegle, M.G., Schneider, S.C., Melzer, A. & Schubert, H. (2010). Distinguishing Chara baltica, C. horrida and C. liljebladii- conflicting results from analysis of morphology and genetics. Charophytes 2(2): 53-58.
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Cite this record as:
Wendy Guiry in Guiry, M.D. & Guiry, G.M. 2019. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 April 2019.