< 2019
Botanikai
Közlemények 106(1): 65–70 (2019)
DOI: 10.17716/BotKozlem.2019.106.1.65
Additions to
the knowledge of Hungarian Festuca taxa I. Taxa of Festuca
psammophila series in the Festuca vaginata species complex
K. PENKSZA
Department of
Botany, Institute of Botany and Ecophysiology, Szent István University,
H–2100 Gödöllő, Páter Károly utca 1, Hungary;
penksza@gmail.com
Accepted: 29
March 2019
Key words:
awn, Festuca dominii, inflorescens, spikelet.
We studied the vegetation of sandy areas along the Danube River. The most
important dominant species of these grasslands is Festuca vaginata. Besides
this taxon, Festuca pseudovaginata as a new species was also described by
the author of this paper earlier. According to certain authors, F. dominii
is a dominant species in acidic sand grasslands in Hungary. The taxonomic
position of Festuca dominii Krajina underwent substantial changes in the
past few decades. Today, the accepted name of the species is F. psammophila
subsp. dominii (Krajina) P. Šmarda. To clarify the taxonomy and geographical
distribution of taxa belonging to the Festuca vaginata species complex, we
examined and collected individuals belonging to F. vaginata in altogether 20
sample sites in Hungary. We found that the F. vaginata taxon were typically
lacking awn. In addition, we also encountered individuals with 0.2–0.6 mm
long awn covered by short hairs on the tip of the lemma. These individuals
can be considered as varieties of F. vaginata as they have no isolated
geographical distribution. After a careful examination of the literature and
herbarium specimens, it can be concluded that the valid taxonomy for F.
dominii Krajina is F. psammophila subp. dominii (Krajina) P. Šmarda today.
Both the variety and the base species is absent from the Pannonicum. This
fact and the dominance of F. vaginata in acidic sand grasslands in Hungary
justify the absence of Festuco dominii-Corynephoretum Borhidi (1957) 1996
association in Hungary. The proper association on acidic sand is Festuco
vaginatae-Corynephoretum Soó in Aszód 1935.
Full text
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