A KEY BASED UPON LEAVES. 



Abbreviations. a. = apex or at apex; ab. = above; b. = base or at base; bn. = beneath; 

 fr. i= fruit; 1. = long (usually omitted and implied after dimensions); If. = leaf; Ifts. = 

 leaflets ; Ivs. = leaves. 



SIMPLE LEAVES, 



b With well marked blade and petiole, or without petiole (sessile) ; 



C MAIN RIB SINGLE PINNATELY VEINED 



cl Margin entire; 



e Leaves lance-oblong, thick, 



f Acuminate at both ends, 3-9 in., 



g Rugose-reticulate, deciduous; fr. an elongated dry drupe. 



CORK- WOOD (Leitneria floridana). 

 g2 Smooth and lustrous; fr. a dark blue drupe; veins beneath and petioles 



h Rusty tomentose, evergreen SWAMP BAY (Per sea pubescens). 



hs Glabrous or nearly so, evergreen RED BAY (P. Borbonia) . 



f2 Acute at both ends, 1^-4 in.; fr. an acorn. 



WILLOW OAK (Quercus Phellos). 



