Wood of coconut tree

Figure 1: small piece of coconut wood showing the joints that draw nearer and farther from each other

Figure 2: cross-section of coconut tree showing the large vessels rising obliquely to give the trunk its stiffness

Figure 3: cross-section of coconut wood from close to the bark showing hollow threads within hollow threads surrounded by bellow-like parts

Figure 4: lengthwise section of coconut wood through the bellow-like parts

Figure 5: lengthwise section of one of the bellow-like parts

Figure 6: section of spiraling vessel from coconut tree shown at T in Figure 2