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Named for Charles Darwin, the only known specimen of a newly discovered beetle, Darwinylus marcosi, died in a sticky gob of tree sap some 105 million years ago in what is now northern Spain. As it ...

Named for Charles Darwin, the only known specimen of a newly discovered beetle, Darwinylus marcosi, died in a sticky gob of tree sap some 105 million years ago in what is now northern Spain. As it ...

Scientists have discovered that a plant hormone called auxin is responsible for development of the egg cell in a plant's embryo sac. In unraveling this fundamental issue in plant biology, the work ...

Proteins are vital parts of living organisms, performing a variety of essential functions such as DNA replication, catabolizing reactions, and responding to stimuli. The complete set of proteins ...

Taking into account the relative paucity of knowledge about rDNA organisation in most gymnosperms despite the rather reduced size of the group (1000 gymnosperm versus 250 000 angiosperm species), we ...

A gradient (red) in the concentration of auxin, a plant hormone, determines that only one of the eight undifferentiated nuclei in a plant's embryo sac will become an egg. (In this image, a large ...

Robert Brown (1827) recognized the distinction between the two major classes of seed plants on the basis, respectively, of exposed ovules, which receive pollen directly, and enclosed ovules, which do ...

India's first Gymnosperm garden, established by the Uttarakhand forest department, showcases 27 crucial Gymnosperm plant species including endangered varieties like Ginkgo and Thuner. The garden, ...

THE author's apology for his little book is that few “Exotic Floras” contain artificial keys to the natural orders, even such as contain keys to the genera and species. But we imagine few persons ...