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Record: oai:ARNO:526438

AuthorT.W.J. Gadella
TitleOnvruchtbaarheid, een vruchtbaar terrein van studie
JournalGorteria : tijdschrift voor de floristiek, de plantenoecologie en het vegetatie-onderzoek van Nederland
AbstractSince our knowledge concerning the time of fruiting of various Angiosperms is very limited, JACOBS (1969, 1970) recently recommended this subject to the attention of amateur-botanists.
The present author is of the opinion that also attention should be paid to the study of the absence of ripe fruits. Various causes may be responsible for this aspect: spatial isolation of the sexes in dioecious species (Mercurialis perennis, Stratiotes abides), interspecific hybridization ( (Violahybrids), triploidy (a.o. Stellaria graminea) and predominance of vegetative reproduction (a.o. in Ranunculus ficaria and some strains of Potentilla anserina).
Document typearticle
Download paperpdf document http://www.repository.naturalis.nl/document/566858