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 ?
The present study was conducted to provide a check list of angiosperms for plant conservation.
Hypothesis: Vessel grouping is a form of xeromorphy that is present in angiosperm woods that do not have tracheids as am imperforate tracheary element type.
Relations of environmental change to angiosperm evolution during the Late Cretaceous and Tertiary, p.
Recently, a number of species in various genera of the angiosperms have been observed to have bordered pit pairs possessing an impermeable torus as well as a surrounding margo with openings the size of the pit membrane of typical angiosperms rather than the larger openings of the margos of gymnosperms.
Test of nonhost angiosperm volatiles and verbenone to protect trap trees for Sirex noctilio (Hymenoptera: Siricidae) from attacks by bark beetles (Coleoptera: Scolytidae) in the northeastern United States.
Mexican angiosperm lineages, families, genera, and infrageneric groups with or without formal taxonomic status were compiled based on the literature (Rzedowski, 1993; Villasenor, 2004; Anonymous, 2009).
Angiosperm pollen from the pre-Albian Lower Cretaceous of Equatorial Africa.
The fossil radiations of mammals, birds and angiosperms produced similarly inflated molecular dates (e.
Results showed that the phylogenetic tree more consistent with the evolution of Viridiplantae proposed by the Angiosperm Phylogeny Group (APGII) classification system and additionally supported by the bootstrap was obtained with the combination of rpoC1 and matK markers, using the neighbor joining method and applying a Tamura-Nei distance-correction (Figure 1).
Angiosperm phylogeny inferred from 18S r DNA, rbcL, and atpB sequences.
Evidence for a Cenozoic radiation of ferns in an angiosperm dominated canopy.