A KEY BASED UPON LEAVES. 



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

 fr. = fruit; l. = long (usually omitted and implied after dimensions); lf. = leaf; Ifts. = 

 leaflets ; Ivs. = leaves. 



a SIMPLE LEAVES. 



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



C MAIN RIB SINGLE FINN A 1 ELY VEINED 



<l 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*. 

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



h Rusty tomentose, evergreen SWAMP BAY ( Persea pubescens ) . 



l\- Glabrous or nearly so. evergreen RED BAY (P. Borbonia) . 



f2 Acute at both ends, l 1 /?^ in.; fr. an acorn. 



WILLOW OAK (Quercus Phellos). 

 e 2 Leaves lance-obovate, cuneate, rounded a., mostly 



f Clustered on lateral spurs; fr. a black drupe; beneath and petioles 



g Densely tomentose WOOLLY BUCKTHORN (Bumelia lanuginosa) . 



g2 Glabrous or nearly so SOUTHERN BUCKTHORN (B. lycicides}. 



f2 Alternate on the branchlets. 



g Thinnish, glabrous above, deciduous; fr. 2-celled capsules. 



LEATHERWOOD (Cyrilla racemi flora). 

 g2 Very thick, lustrous above, persistent; fr. acorn. 



LIVE OAK (Quercus Virginiana). 

 e 3 Loaves ovate. 



f Inequilateral, long taper-pointed and narrow; fr. drupe. 



MISSISSIPPI HACKBERRY (Celtis mississippiensis). 

 fz Equilateral, broad, lustrous ab. rounded b.. long-acuminate; fr. compound, 



orange-like OSAGE ORANGE (Toxylon pomiferum ) . 



e* Leaves ovate-oblong, abruptly narrowed b. 



f Alternate, acuminate, lustrous dark gr. ab.. paler pubescent bn.; fr. large 



berry .... PERSIM MON ( Diospi/ros Virginiana ) . 



f- Opposite, rough-pubescent above, without stipules; fr. drupe. 



ROUGH-LEAVED DOGWOOD (Cornus as peri folia). 

 P Verticillate (some opposite) glabrous ab., with stipules; fr. in globular 



head BUTTON-BUSH (Cephalanthus occidentalis). 



e" 1 Leaves oblong, mostly cuneate b., 

 f Deciduous. 



