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Morphological variability of suspensor in Agrimonia L. [Rosaceae]

100%

Czapik R.

Acta Biologica Cracoviensia. Series Botanica

1995

tom 37

Two main types of suspensor: filamentous and massive, as well as its intermediary form, were observed at the cotyledonary stage of the embryo in Agrimonia eupatoria L. (2n = 28), A. pilosa Led. (2n = 28) and A. procera Wallr. (2n = 56). The nature of this variation, occurring in the same plant, is unknown but it gives an example of embryological intraspecific variability rarely described is suspensors of Angiospermae.

Embryological analysis of Aphanes arvensis L. [Rosaceae]

88%

Izmailow R.

Acta Biologica Cracoviensia. Series Botanica

1999

tom 41

The paper deals with the embryology of Aphanes arvensis L. and refers to plant material from Poland. Examination of various developmental stages revealed most characteristic features of sexual reproduction. Only a few ovules showed a tendency to elementary apomictic processes in the form of sporadically observed initial cells or young aposporous embryo sacs. The apomictic processes were not continued, but there is reason to believe they could be completed in some ovules. The results are discussed in a taxonomic context.

Ograniczanie wyników

2 Acta Biologica Cracoviensia. Series Botanica

1 Czapik R.

1 Izmailow R.

1 1999

1 1995

Wyniki wyszukiwania

Morphological variability of suspensor in Agrimonia L. [Rosaceae]

Embryological analysis of Aphanes arvensis L. [Rosaceae]