78 
IOWA ACADEMY OF SCIENCE Vol. XXVII, 1920 
Drawn by C. M. King 
Fig. 11c. Nyssa sylvatica Marsh. Black gum. Seedling showing the large cotyle- 
dons. Drawn by C. M. King 
Fig. lid. Diospyros virginiana B. Persimmon. Seedlings, showing the unfolding 
cotyledons and several subsequent leaves. Drawn by C. M. King 
Germination epigaeous. Hypocotyl pale. Cotyledons long- 
stalked, cordate in general outline. Petiole erect, but leaf blades 
of cotyledons at right angles, prominently veined, smooth. First 
leaf cordate, .coarsely dentate, slightly pubescent below, and on 
the margin. Root long, slender, whitish; lateral roots long. 
Rosaces 
Leguminosae 
Seshania macrocarpa Muhl. Pea-tree. See figure 11, A. 
Seeds from South Carolina, collected fall of 1918; planted in 
