A morphometric study on Senecio erucifolius (Asteraceae) from Poland and its taxonomic implications
PBN-AR
Instytucja
Wydział Ogrodnictwa i Architektury Krajobrazu (Uniwersytet Przyrodniczy w Poznaniu)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
ACTA SOCIETATIS BOTANICORUM POLONIAE
ISSN
0001-6977
EISSN
2083-9480
Wydawca
DOI
Rok publikacji
2016
Numer zeszytu
2
Strony od-do
art. no. 3505
Numer tomu
85
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 3)
Pozostali autorzy
+ 1
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
en
taxonomy
morphological variability
Jacobaea erucifolia
Asteraceae
Poland
pl
taksonomia
zmienność morfologiczna
starzec wąskolistny
Polska
Streszczenia
Język
en
Treść
Twenty-three populations of Senecio erucifolius were sampled to study morphological diversity of the species in Poland. A total of 690 shoots, leaves, capitula, flowers, and fruits were characterized in respect to 27 quantitative traits and were subjected to morphometric analyses. Principal component analysis made it possible to distinguish two groups of individuals, corresponding to two infraspecific taxa – S. erucifolius subsp. tenuifolius (19 populations) and S. erucifolius subsp. erucifolius (four populations). The characters of the greatest importance in differentiating these two subspecies included the length of the upper lobe of the middle leaf, the width of the upper lobe, the width of the longest lateral lobe, the width of the upper lobe at the base, and the length of the tubular flower. Six of the 27 morphological features significantly differentiated populations within subspecies erucifolius according to a stepwise discriminant analysis. The length of the middle leaf, length of the tubular flower and width of the upper lobe at the base contributed most to the discrimination between the investigated populations. The discriminant analysis also showed considerable morphological heterogeneity of the 19 populations classified as subspecies tenuifolius. Seventeen characters significantly differentiated the populations, with the length of the achene and the ratio between the length and the width of the achene as the most important ones.
Cechy publikacji
original-article
Inne
System-identifier
0000014954
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