I think You are not allowed to view links. Register or Login to view. (the one Wladimir inadvertently labeled as 35r) and f102r2 are drawn the same way because they are the same plant.
Also, the nodules and segments drawn on some of the plant roots are found on real plants. Some elements of the drawings might be similar because they are simplified representations of normal botanical elements.
Also, the nodules and segments drawn on some of the plant roots are found on real plants. Some elements of the drawings might be similar because they are simplified representations of normal botanical elements.