columella, regretting that Virgil had omitted to sing of gardens, composed a smooth poem on horticulture.
The columella is present and the spores are round and minutely warted.
Capillitium of numerous colorless threads, radiating from the columella and separating outwardly into several branches.
columella was born at Gades (Cadiz), and served in the army in Syria.
The columella is flattened and smooth, and its lower portion is a little twisted.
columella straight, with two or three triradiate verticils of horizontal lateral branches, which are inserted in the shell-wall.
The genus is marked by its surface-net supported at the tips of the dichotomously branched divisions of the columella.
The outer lip is sinuous, and the columella is slightly twisted.
Within it is white, with a reddish tinge on the columella, and brownish spots on the edge of the lip.
The lower portion of the columella is calloused and roughly granulated.
columella col·u·mel·la (kŏl'yə-měl'ə, kŏl'ə-) or col·um·nel·la (kŏl'əm-něl'ə)
n. pl. col·u·mel·lae (-měl'ē) or col·um·nel·lae (-něl'ē)
A column-shaped anatomical structure.