| Gynodioecy, the coexistence of hermaphrodite and female individuals in natural populations, is relatively frequent in angiosperm species. |
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| Moreover, since the expression pattern is similar in a gymnosperm and in an angiosperm this function appears to be evolutionarily conserved. |
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| Pistia stratiotes L. is a free-floating aquatic angiosperm that can reproduce rapidly by vegetative offshoots from stolons. |
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| Hence, we remain agnostic regarding phylogenetic relationships among basal angiosperm lineages. |
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| Here we combine phylogenetic reconstruction with new data on the morphology and ecophysiology of these plants to infer early angiosperm function. |
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| With a number of methods a topology in which the grasses clade is basal within the angiosperm group was found with high bootstrap support. |
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| Orchids display a vast array of floral morphologies and pollination mechanisms, unparalleled in any other angiosperm family. |
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| Potential foods included not only pollinating insects of angiosperm flowers but also the pollens, nectars, fruits, seeds and foliage of angiosperms themselves. |
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| Early angiosperm fruits were apocarpous, with several free carpels. |
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| For a discussion of the other types of vascular plants, see gymnosperm and angiosperm. |
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| The unique feature of this phase of angiosperm development is that two fertilizations occur. |
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| It is the common name for the reproductive tissue surrounding the seed of the angiosperm lemon tree. |
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| On one hand, angiosperm cells lack centrosomes as microtubule organizing centres and are missing the contractile ring which serves as a tool for cytokinesis in animal cells. |
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| In a number of angiosperm species, mostly dicots, the endosperm is a transient structure that may be absorbed in the later stages of seed development. |
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| In contrast, angiosperm have a wealth of pollination methods involving many different agents to transfer pollen, including insects, birds, bats, wind, and water. |
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| It is a small angiosperm tree, growing to about 10 m tall, with thorny shoots and evergreen leaves, which are arranged alternately, of ovate shape with crenulate margins and 4-10 cm long. |
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| As a rule, angiosperm stems have no endodermis or definable pericycle. |
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| Many polypod ferns preferentially grow in shady habitats under the canopy of dense angiosperm forests. |
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| Its small genome, rapid life cycle, small size, and large number of mutants and genomic resources make it an ideal angiosperm for plant research. |
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| Holocentric chromosomes have been also observed in a few other angiosperm genera. |
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| Causal mechanisms of leaf dimorphism in the aquatic angiosperm Callitriche heterophylla. |
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| Of the 13 angiosperm families generally recognized as the most primitive, all but two Magnoliaceae and Winteraceae are overwhelmingly tropical in their present distribution. |
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| Psyllids are generally monophagous or narrowly oligophagous with respect to their angiosperm hosts. |
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| As the principal component of the terrestrial biosphere, the angiosperm flora determines many features of the habitat, some of which are available food, aspects of the forest canopy, and grazing land. |
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| The most recent results of angiosperm taxonomy. |
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| These conserved cDNA have the highest potential for studying syntenic relationships and phylogenetic differences between angiosperm and gymnosperm plants. |
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| Neither marine palynomorphs nor angiosperm pollen grains were recognized. |
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| The invention also provides a transgenic seed plant, such as an angiosperm or gymnosperm, that contains a recombinant nucleic acid molecule of the invention. |
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| Despite being a very important ethno-medicinal angiosperm species, due to many factors, it has now been restricted to small pockets of the Kashmir Himalaya. |
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| The apex of Podophyllum peltatum can be described as a dome of medium size and exhibiting an internal structure not unlike that of other angiosperm apices. |
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| Angiosperm seeds are comprised of an embryo and endosperm resulting from double fertilization of the egg cell and two polar nuclei, respectively. |
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| Angiosperm root hemiparasites attach to the root system of a host plant and extract xylem sap after gaining contact with xylem vessels. |
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