the central part of the spore-producing body of some fungi and mosses
b.
any similar columnar structure
2. Also called: columella auris (ˈɔːrɪs)
a small rodlike bone in the middle ear of frogs, reptiles, and birds that transmits sound to the inner ear: homologous to the mammalian stapes
Derived forms
columellar (ˌcoluˈmellar)
adjective
Word origin
C16: from Latin: diminutive of columnacolumn
Examples of 'columellae' in a sentence
columellae
The columellae are of two distinct sizes.
Annie Skarby, Marta A. Morbelli, John R. Rowley 2009, 'Structure of the Pollen Exine of Rhoiptelea chiliantha', Taiwaniahttp://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=900. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The columellae figures were prominent or flattened.
Cengiz Karaismailoğlu 2019, 'Notes on the taxonomical, morphological and mucilage features of Capsella bursa-pastorisMedik. and Capsella rubella Reuter taxa (Brassicaceae)', Artvin Çoruh Üniversitesi Orman Fakültesi Dergisihttp://ofd.artvin.edu.tr/issue/42218/475435. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The smaller ones are ca 70 nm wide and join the tectum and the larger columellae.
Annie Skarby, Marta A. Morbelli, John R. Rowley 2009, 'Structure of the Pollen Exine of Rhoiptelea chiliantha', Taiwaniahttp://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=900. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The latter are sites for columellae formation, and muri are constructed from the rows of columallae covered by tectum.
Nina I. Gabarayeva, Valentina V. Grigorjeva 2003, 'Comparative Study of the Pollen Wall Development in Illicium floridanum (Illiciaceae)and Schisandra chinensis (Schisandraceae)', Taiwaniahttp://tai2.ntu.edu.tw/taiwania/abstract.php?type=abstract&id=27. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)