CUP. II.] C.-ESALPINE^. 47 



now so frequently planted in our shrubberies on 

 account of the lightness and elegance of their 

 foliage, belong to this division, and some of 

 them, particularly the Chinese Thorny Acacia 

 (Gleditschia horrlda), are remarkable for their 

 thorns proceeding from the trunk and large 

 branches, as well as from the axils of the leaves. 

 The Logwood {HcBmatoxylon Campechianuni) ^ 

 has inconspicuous yellow flowers, the petals 

 being very little longer than the calyx ; and the 

 legume has seldom more than two seeds. Though 

 it is considered a tree, the stem is seldom thicker 

 than the arm of a man, and it is generally 

 crooked ; chips of the wood are used for dyeing 

 purple. The Judas-tree (Cercis siliquastriim) 

 is another species belonging to this division, as, 

 though the flowers appear of the papilionaceous 

 kind, they are, in fact, composed of five petals, 

 nearly equal in size, but having the wings the 

 largest. There are ten stamens, free, and of 

 unequal length. The legume is oblong and 

 many- seeded ; and it opens only on the dorsal 

 suture, the other side to which the seeds are 

 attached being slightly winged. The flowers 

 are each on a separate flower-stalk or pedicel, 

 but they rise from the trunk and branches in 

 tufts or fascicles. The leaves are simple and 

 cordate ; and they do not appear till the flowers 

 have faded. 



