A KEY TO THE TREES OF TEXAS 
Leaves needle, scale, or awl shaped; fruit a cone 
of dry scales or a berry-like cone.............. 
Leaves with expanded blades; fruit not as above. 
I. Leaves compound. 
A. Leaves palmately compound. 
ASIEN th EOD) Ooo ad as ha fee oan 4 oe ROE 
LO as Te eS ee a 
B. Leaves pinnately compound. 
1. Leaves once pinnate. 
a. 
_»b. 
Leaves without an odd leaflet at 
the end, opposite, persistent........ 
Leaves with an odd leaflet at the 
end. 
(1) Leaves alternate. 
(a) Leaflets toothed or notched 
all the way around. 
x. Trees with thorns...... 
y. Trees thornless. 
(x) Fruit red drupes... 
WYSE Eat a ibe... oiex. 6 
(z) Fruit a_ trilobed 
BADSUNEE ceaviers < digs 2 
(b) Leaflets entire. 
Re, Trees With: tHOEHS)s <5 65's 
y. Trees without thorns. 
(x) Fruit yellow drupes 
borne in clusters.. .. 
(y) Fruit an elongated 
WG prac oe ee 
(c) Leaflets with one to four 
gland tipped notches at 
TSG hers TN 5 Genta eu eins 
(2) Leaves opposite. 
(a) Leaflets, three evergreen... 
(b) Leaflets 3-5, lobed or 
doubly serrate, fruit 
RAS I ag ae hy ab oe As 
(c) Leaflets 5-11, sharply ser- 
rate, fruit clusters of 
SENOS as. 5c, as dle ieee aces 
Page 
Pinaceae “o.-2 3 5c: 5 
Aesculaceae ....132 
Ptelea in 
Staphyllaceae ..126 
Zygophyllaceae .125 
Fagara in 
Rutracede 2 ies... £25 
schmaltzia 3... 2% g Bes 
Juglandaceae ... 47 
Unegnadia in 
Sapindaceae ....138 
ia bacese.s.°-*. cP 
Sal Gas. = aC k 138 
Bapacese 42. pal 
Ailanthus .....%* 127 
Heletia in 
RUipeeae 3. s, 2. 125 
Aceraceae ...... 134 
Sa OUCHS! . &.. 157 
