angiosperm

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angiosperm

any member of the class Angiospermae, in which the seeds are enclosed in an ovary The class contains the most advanced vascular plants. Each member of the class is either a MONOCOTYLEDON (e.g. grasses, tulips) or a DICOTYLEDON (e.g. apple, primrose). See PLANT KINGDOM for a more complete classification.
References in periodicals archive ?
I shall now demonstrate the practice of such comparative typology at hand of the phylogenetic relations between the types of bryophytes and ferns and between the different types of angiospermous synflorescences.
In most conifers micropyle sealing is followed, but less rapidly, with enclosure of the developing embryo and seed by enlargement of cone scales, or other tissues, so that plants now become angiospermous (Table 1).
del 1 al 7 de agosto donde presento el trabajo "The constructional patterns of the flowering and vegetative growth units (FVU) conforming angiospermous plants".
Thin porous membranes in end walls of tracheids--and then vessels--may be the angiospermous compensation for lack of the margo spaces that conifers have.
About 250 fossil pollen types related to 113 extant angiospermous families from the Cretaceous and the Tertiary in China are discussed in