Careful observation of such leaf lamina shows that veins do branch and converge in places, especially near the base and apex of the blade.
Careful observation of such leaf lamina shows that veins do branch and converge in places, especially near the base and apex of the blade.
仔细的观察表明叶脉在某些地方分支和联合，尤其在叶片的顶端和基部。