"Camera-lucida outline of portion of cross section of cornstalk, showing at g bast fiber zone beneath…
"Morphology of a typical dicotyledonous plant. A, leaf, pinnately-netted veined; B, portion of stem,…
"Cross section of a portion of palm stem. e, xylem; f, phloem portions of vascular bundle; g, sclerenchyma…
"Stone cells from different sources. 1, from coffee; 2, 3, and 4, from stem of clove; 5 and 6, from…
"Cross section of yellow poplar wood. E, early; L, late growth; m, medullary ray." -Stevens, 1916