An annulus in botany is an arc or a ring of specialized cells on the sporangium. These cells are arranged in a single row, and are associated with the...

Look up annulus in Wiktionary, the free dictionary. Annulus (or anulus) or annular indicates a ring- or donut-shaped area or structure. It may refer to:...

flower : Orbea variegata" (PDF). Pir.sa.gov.au. Retrieved 24 March 2022. "Annulus (botany)". Cactus-art.biz. Retrieved 15 April 2018. "Orbea variegata". Encyclopedia...

An annulus is the ring-like or collar-like structure sometimes found on the stipe of some species of mushrooms. The annulus represents the remnants of...

growing season. annulus 1.  A ring-like structure; in the form of a ring. Pappus bristles are sometimes attached to a ring called an annulus or disk at the...

the walls of anthers (see above). Many leptosporangiate ferns have an annulus around the sporangium, which ejects the spores. Eusporangiate ferns do...

having an annulus, and anther thecae largely separated, whereas in Haplothismia the 2-6 flowers are borne on pseudoracemes, without annulus, and the anther...

of strawberry to a ringspot virus from raspberry". Canadian Journal of Botany. 41 (6): 865–870. doi:10.1139/b63-070. Descriptions of Plant Viruses: Tomato...

straw color to brownish or reddish-brown, becoming darker where injured, annulus absent. Odor: Farinaceous Taste: Farinaceous Microscopic features: Spores...

resulting in a shape which "might be called a sector of a right cylindrical annulus (like a piece of pie with the point bitten off)". The blocks fill the color...