H. Doc. 181. 



PLATE XI. 





L.ONGLEAF PINE (PlNUS PALUSTRIS Mill.): BUD AND LEAF. 



a, branch with terminal bud; b, leaf bundle: c, rf. primary leaf bracts i magnified ) ; e, cross section through base of leaf bundle (magnified); /, g, en 



sections (magnified) of leaves; A, longitudinal section through leaf. 



