Go to Naturalis.nl

Search results

Record: oai:ARNO:527604

AuthorIngrid de Kort (Delft)
TitleOver het onderscheid tussen x Festulolium loliaceum (Huds.) P. Fourn. en zijn ouders en tussen x Festulolium-hybriden onderling
JournalGorteria : tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland
AbstractThe difference between x Festulolium loliaceum (Huds.) P. Fourn. and Festuca pratensis L. has been investigated by the author, x Festulolium loliaceum differs from Festuca pratensis in: 1. spikelets in the upper part of the inflorescence (-branches) sessile; 2. glumes markedly unequal (difference 1-4 mm) whereas in F. pratensis the glumes differ to up to 1 mm; 3. upper glumes 5-8 mm (in F. pratensis 4-5 mm). The author disagrees with the opinion that x Festulolium loliaceum and x F. holmbergii should never have awned lemmas. Only if the awns of the lemmas are larger than c. 1,5 mm does it seem acceptable to identify a specimen as Festuca pratensis x Lolium multiflorum (only 2 collections thusfar in the Netherlands) or, when the plant has hairy auricles, as Festuca arundinacea x Lolium multiflorum. The identification of x Festulolium collections with short-awned lemmas is uncertain.
Lastly the author mentions the fact that x Festulolium loliaceum always occurs in the neighbourhood of its parents. For that reason x F. loliaceum can not belong to the Netherlands flora, as only hybrids occurring in absence of the parents are accepted in the Standard List of the Netherlands Flora.
Document typearticle
Download paperpdf document http://www.repository.naturalis.nl/document/567997