Special Morphology and Classification. 403 
red colouring principle ane, Sappan is the red sappan-wood of Eastern 
India, and Hematoxylon campechianum of Central America, logwood. 
3. MWimosee (Fig. 517). This suborder is also extra-European and 
chiefly Australian and East Indian. They are distinguished from the 
Fic. 517.—Sensitive-plant, A{imosa pudica (natural size) (see p. 202). 
Papilionaceze by the valvate zstivation of the calyx, and the regular, 
often gamopetalous, corolla. The stamens are sometimes very nu- 
merous, and either coherent or free. [The leaves are often replaced 
by phyllodes,) see p. 91). Principal genera :—Mimosa, Acacia. The 
_ suborder includes the sensitive plants A@mosa pudica and sensitiva 
DD2 
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