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 first angiosperm, or flowering plant, had a simple arrangement of layered petals and contained both male and female reproductive organs, according to the study.
The US-German team which found the piece said that the main aspect of this discovery is that it presents a new look at the biodiversity of early flowering plants, which caused an enormous change in biodiversity on Earth.
The perfectly-preserved scene, in a plant now extinct, is part of a portrait created in the mid-Cretaceous when flowering plants were changing the face of the Earth forever, adding beauty, biodiversity and food.
In addition to its utility in studies of flowering plant evolution, the Amborella genome sequence offers insights into the history and conservation of Amborella populations, co-author Doug Soltis, a distinguished professor from the Florida Museum of Natural History in the University of Florida noted.
We are also beginning to understand that the explosive radiation of all flowering plants about 111,000,000 years ago has had a long history that began with the slower diversification of many families of eudicots over 10,000,000, perhaps 15,000,000, years earlier.
A PHOTO of the male sex organ of a flowering plant has won the prestigious Nikon Small World Photomicrography Competition.
Gymnosperm pollen is easily distinguished from flowering plant pollen because of the different architecture of their pollen walls.
Between Tucson and Santa Fe, the flowering plant you see more than any other is Russian sage (Perovskia atriplicifolia).
95) provides an in-depth and technical reference to what is commonly known by gardeners as amaryllis, a popular indoor and outdoor flowering plant with eye-catching large blossoms.
You will need: * a flowering plant * pieces of colored felt or paper * scissors * a piece of cardboard * a felt-tip pen * nontoxic glue
The Barcode Wales DNA database represents 75% of all of the flowering plant species in the U.
So even though the amber droplets are definitely not from a flowering plant, their origin remains unknown.