Glyceria

Glyceria R. Brown

Glyceria is a relatively small genus of ca. 35 species of wet areas. Most are confined to the northern hemisphere. Four species are native in Belgium: Glyceria declinata Bréb., G. fluitans (L.) R. Brown, G. maxima (Hartm.) Holmberg and G. notata Chevall. (Lambinon & al. 2004).

In addition to the two alien species currently found in Belgium another North American species, Glyceria grandis S. Watson ex A. Gray, , is locally naturalized, especially in Scandinavia (Niordson 1989, Kääntönen 1991, Kurtto 1996b) and more recently also in France (Portal & Bergeron 2004) and the British Isles (Ellis 2001). It is most closely related to native Glyceria maxima and has darker and smaller spikelets but is otherwise very similar. A recently described new European subspecies of Glyceria maxima (subsp. micrantha Scholz; see Scholz 2002), hardly differs from the American G. grandis and further blurs the specific boundaries between both species.

  • 1. Spikelets oblong to linear in outline, at least twice as long as wide, 6-32 mm long, at fruiting cylindrical to slighty compressed. Anthers 3 (native) === Glyceria declinata, G. fluitans, G. maxima and G. notata

    1. Spikelets obovate to oblong, 1.5-6 mm long, almost as wide as long, always laterally compressed at fruiting. Anthers 2 === 2

    2. Spikelets 3-5 mm wide. Lemma 3-3.8 mm long, veins visible but not raised === G. canadensis

    2. Spikelet 1.2-2.2 mm wide. Lemma 1.2-1.8 mm long, veins distinctly raised === G. striata


Literature:

Babczynska-Sendek B. & Sendek A. (1989) Glyceria striata (Lam.) Hitchcock - nowy gatunek we florze Polski. Fragm. Florist. Geobot. 34: 75-80.

Barkworth M.E. & Anderton L.K. (2007) Glyceria. In: Barkworth M.E. & al. (eds.), Flora of North America north of Mexico, vol. 24: 68-88. Oxford University Press, New York-Oxford.

Bizot A. & Parent G.H. (2005) Trois plantes américaines du Nord-Est de la France: 1. Carex vulpinoidea Michx., 2. Glyceria striata (Lam.) Hitchcock, 3. Scirpus atrovirens Willd. Bull. Soc. Hist. Nat. Ard. 94: 24-34.

Carlsson R. (1976) Glyceria striata funnen i Sverige. Svensk Bot. Tidskr. 70: 57-60.

Conert H.J. (ed.) (1998) Gustav Hegi Illustrierte Flora von Mitteleuropa. Band I, Teil 3 Poaceae (3.Auflage). Parey Buchverlag, Berlin: XXVII + 898 p.

Dančák M. (2002) Glyceria striata – a new alien grass species in the flora of the Czech Republic. Preslia 74: 281-289.

Ellis G. (2001) Alien records. BSBI News 86: 47-48.

Felzines J.-C. & Loiseau J.-E. (2002) Cyperus reflexus Vahl et Glyceria striatus (Lam.) A.S. Hitch., deux adventices en cours de naturalisation dans la vallée de la Dordogne moyenne. Monde Pl. 478: 9-11.

Ganzert C. & Walentowski H. (1989) Glyceria striata (Lam.) Hitchc. – eine neue Graminee in der Flora Bayerns. Ber. Bayer. Bot. Ges. 60: 191-194.

Georges N. (2002) Glyceria striata (Lamarck) A. Hitchcock, une nouvelle poacée pour la flore de Lorraine. Monde Pl. 477: 15-18.

Gerstberger P. (1994) Die Neophyten Glyceria striata und Scirpus atrovirens im Rheinischen Schiefergebirge bei Oberwinter. Decheniana 147: 44-48.

Haeupler H. (1971) Glyceria striata (Lam.) Hitchc. - ein Neubürger in Deutschlands Gramineenflora. Gött. Florist. Rundbr. 5: 63-68.

Holub J. (1980) Glyceria. In: Tutin T.G. & al. (eds.), Flora Europaea, vol. 5. Cambridge University Press, Cambridge: 180-181.

Kääntönen M. (1991) Glyceria grandis Juupajoella (EH) – uusi laji Suomelle. Lutukka 7: 130-132.

Keil P. (2005) Ein Vorkommen von Glyceria striata (Lam.) Hitchc. in Wuppertal-Dornap. Natur und Heimat 65: 61-63.

Korneck D. & Schnittler M. (1994) Glyceria striata und Scirpus atrovirens im Rheinland. Flor. Rundbr. 28: 29-36.

Kumm V. (2002) Ein Vorkommen von Glyceria striata im Springbruch bei Potsdam. Verh. Bot. Ver. Berlin Brandenburg 135: 11-16.

Kurtto A. (1996b) Suomen sorsimoiden (Glyceria) määrityskaava. Lutukka 12: 125-126.

Lambinon J., Delvosalle L., Duvigneaud J. (avec coll. Geerinck D., Lebeau J., Schumacker R. & Vannerom H. (2004) Nouvelle Flore de la Belgique, du Grand-Duché de Luxembourg, du Nord de la France et des Régions voisines (Ptéridophytes et Spermatophytes). Cinquième édition. Jardin botanique national de Belgique, Meise: CXXX + 1167 p.

Lid J. & Lid T.L. (1994) Norsk Flora, 6th ed.: LXXIII + 1014 p. Det Norske Samlaget, Oslo.

Melzer H. & Wagner S. (1991) Glyceria striata (Lam.) A.S. Hitchc., das gestreifte Schwadengras – neu für Oberösterreich. Linzer biol. Beitr. 23: 251-255.

Mitchell J. (2007) Glyceria canadensis in Dumbarton (v.c. 99). BSBI News 104: 36.

Niordson N. (1989) Kvarngröe, Glyceria grandis, funnet i Småland och Halland. Svensk Bot. Tidskr. 83: 357-360.

Piwowarski B. & Bartoszek W. (2012) The occurrence of Glyceria striata (Lam.) Hitchc. in Europe and the new localities of the species in Poland. Acta Societatis Botanicorum Poloniae 81(2): 87-92. [available online at: https://pbsociety.org.pl/journals/index.php/asbp/article/view/asbp.2012.004]

Portal R. (2014) Glyceria, Puccinellia, Pseudosclerochloa. France, pays voisins et Afrique du Nord. Vals-près-Le Puy: 149 p.

Portal R. & Bergeron G. (2004) Deux graminées nouvelles pour la France. Glyceria grandis S. Watson ex A. Gray 1890; Jarava brachychaeta (Gordon) Penail. 2002. Monde Pl. 483: 12-14.

Raabe U. (1986) Der Gestreifte Schwaden, Glyceria striata (Lam.) Hitchcock, bei Bad Rothenfelde, Kreis Osnabrück. Flor. Rundbr. 19(2): 85-87.

Saintenoy-Simon J. (1997) Excursion dans la région de Waimes et de Bütgenbach, le 14 septembre 1996. Adoxa 17: 19-21.

Scholz H. (2002) Eine neue Unterart der Glyceria maxima und Bemerkungen zu G. grandis (Poaceae). Verh. Bot. Ver. Berlin Brandenburg 135: 5-9.

Tsvelev N.N. (2006) Synopsis of the mannagrass genus, Glyceria (Poaceae). Bot. Zhurn. 91(2): 255-276 [in Russian; a translated English version is available at: http://herbarium.usu.edu/translate/GlyceriaTsvelev.htm].

Verloove F. (2002) Ingeburgerde plantensoorten in Vlaanderen. Mededeling van het Instituut voor Natuurbehoud n° 20: 227 p.

Whipple I.G., Barkworth M.E. & Bushman B.S. (2007) Molecular insights into the taxonomy of Glyceria (Poaceae: Meliceae) in North America. Amer. J. Bot. 94: 551-557.

Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith