GERMINATION OF WOODY PLANTS 
279 
Fig. 42. Ptelea trifoliata. Hop tree. Young seedling, early stage, with seed 
coat still attached; cotyledons and plumule exhibited. Older seedling showing 3-parted 
leaves. Drawn by C. M. King. 
Fig. 43. Acer saccharum. Hard maple. Samara. Young seedling showing cotyle- 
dons and first pair of leaves. Drawn by C. M. King. 
