MORACEAE, 35 
MAcLURA. Osage Orange. 
(Family Moraceae). 
Trees with axillary spines, fi- 
brous-flaking bark and milky sap: 
deciduous. Twigs moderate, 
rounded, glabrous, frequently 
dwarf, the longer commonly zig- 
zag. Pith moderate, round, pale, 
continuous. Buds rather small, 
depressed globose, sessile, often 
collaterally branching or produc- 
ing stout lateral spines, with 4 
or 5 scales, the end-bud lacking. 
Leaf-sears alternate, half-round or 
broadly kidney-shaped or triangu- 
lar, somewhat raised: bundle- 
traces several in a transverse el- 
lipse or variously consolidated 
into 3 groups or a composite 
transverse aggregate: stipule- 
scars small or the small deltoid 
stipules persistent at top of the 
leaf-scar. 
The Osage orange, closely related to the tropical tree 
(Maclura or Chlorophora tinctoria) from which fustic is ob- 
tained, contains a similar dye-stuff, which has been made the 
subject of industrial exploitation during the scarcity of aniline 
dyes. One of its most marked characteristics is the orange 
bark that peels from its roots in papery layers. The tradition 
that it was a favorite bow wood with the Osage Indians gave 
it the name bois d’arec, which has been transformed into the 
redundant bow d’arc. 
Twigs buff or olive, with spines. M. pomifera. 
Unarmed. M. pomifera inermis. 
