Definitions for "Columella"
An axis to which a carpel of a compound pistil may be attached, as in the case of the geranium; or which is left when a pod opens.
A columnlike axis in the capsules of mosses.
The upright pillar in the axis of most univalve shells.
Bone that transmits vibrations from the tympanum to the inner ear in reptiles, birds, and anurans; homologous to the hyomandibular of fishes and the stapes in mammals.
inner margin of the aperture of a gastropod shell.
dome-shaped top of a sporangiophore, contained in a sporangium
A term applied to various columnlike parts; as, the columella, or epipterygoid bone, in the skull of many lizards; the columella of the ear, the bony or cartilaginous rod connecting the tympanic membrane with the internal ear.
Rod-like element of the sexine supporting a tectum. Pl. colummellae.
(pl. columellae, adj. columellate) ( Iversen and Troels-Smith, 1950) A rod-like element of the sexine/ ectexine, either supporting a tectum or a caput. Comment: The difference between a baculum and a columella in current usage is, that a baculum is always a free standing element of sculpturing, whereas a columella is part of the structure. See also: baculum, pilum. Columellae layer ( Reitsma, 1970) Synonym of infratectum. See also: interstitium.
Retired soldier who wrote De re rustica.
Lucius Iunius Moderatus Columella (Gades, Hispania Baetica, 4 - c. 70) was a Roman writer. After a career in the army (he was tribune in Syria in 35), he took up farming. His De Re Rustica in twelve volumes has been completely preserved and forms our most important source on Roman agriculture, together with the works of Cato the Elder and Varro, both of which he occasionally cites.
A Dutch cultivar raised at Wageningen, Columella was derived from a selfed seedling of the hybrid Plantyn sown in 1967. It was released for sale in 1989 after proving to be the first Dutch clone immune to Dutch elm disease after inoculation with unnaturally high doses of the causative fungus Ophiostoma novo-ulmi.