Savannah Holly. This holly grows quickly in full sun or partial shade on moist, acid soils. Growth is poor and foliage chlorotic on alkaline soil. Plants in full sun can grow a dense canopy, those in partial shade are more open. This plant is considered mostly allergy free and causes little or no allergy problems in most people. Trees attract cedar waxwings, mockingbirds, robbins and many other birds. A severe witches broom-like disease caused by Sphaeropsis fungus attacks and kills Ilex x attenuata cultivars in parts of Florida.
apical membrane, the layer of plasma membrane on the apical side (the side toward the lumen) of the epithelial cells in a body tube or cavity, separated from the basolateral membrane by the zonula occludens. 1  Facebook.
In all cellular organisms, the plasma membrane is the outermost layer of a cell. It serves to separate the cell from the external environment. In prokaryotes, it is the only membrane. Eukaryotes have membrane-bound organelles. In all cases of membranes they are made of the same basic phospholipid bilayer.