areole การใช้

• Spines, 6 to 12 of which grow from each areole.
• Most species have at least one hooked spine at each areole.
• Each areole produces 25 30 fine whitish spines, long.
• Each areole also has many smaller white spines 1 or 2 centimeters long.
• There are about 6-8 radial spines per areole which are acicular.
• There are up to 90 on each areole.
• Each areole bears up to 15 smooth white spines each measuring a few millimeters long.
• In an areole, the nodes are so close together, they form a single structure.
• Fore wing with very large areole.
• There is a cluster of spines on each areole, surrounded by a tuft of white woolly hairs.
• Each areole has up to 26 radial spines which are red, pink, or white in color.
• Each areole has some wool and several slightly curved yellowish to white spines up to half a centimeter long.
• There are many spines on each areole, the central ones up to 4.4 centimeters in length.
• There are up to 21 bristle-like radial spines on each areole and one to three hooked central spines.
• A typical areole may have one or a few long, sharp central spines, which serve as the primary defense.
• Beneath them are often numerous ( 10 or more ) smaller, radial spines produced around the edge of the areole.
• The outer perianth segments are linear, green, and tipped by an areole like those of the tube and ovary.
• The development of the areole seems to have been an important element in the adaptation of cacti to niches in desert ecology.
• Each areole commonly has 1-7 roundish to angular apothecia that are . 1-1.3 mm in diameter.
• There is a single straight central spine to each areole, long, and five to seven more slender radial spines, long.