George Francis Atkinson – Botany for High Schools (1910):
Fig. 51. A. cross section of the stem of an oak tree thirty-seven years old, showing the annual rings. rm, the medullary rays; m, the pith (medulla). B, cross section of the stem of a palm tree, showing the scattered bundles.
people who slander dandelions are so boring. oh you don’t like weeds?? you don’t want to see my yard absolutely covered in fairy pom poms motherfucker??? get bent
ifesbob 