252 ARBORETUM ET FRUTICETUM BRITANNICUM. 
though smooth when the tree is 
young, yet cracks and scales off when 
the tree grows old, as in G. triacan- 
thos. The ieaves, Michaux says, 
differ from those of G. triacanthos, in 
being a little smaller in all their pro- 
portions. The branches are armed 
with thorns, which are also less nu- 
merous, and somewhat smaller than 
those of G. triacanthos. The tree is 
treated in all respects like G. tria- 
canthos ; of which it has, till lately, 
been considered only a variety. It 
is raised in the nurseries from im- 
ported seed; but whether the plants 
really turn out perfectly distinct, 
with respect to the form of their fruit, ans 
is uncertain ; from their not having yet, as far as we know, fruited in England. 
413. Gleditsehia (t.) monospérma. 
¥ 3. G. stne’nsis Lam. The Chinese Gleditschia. 
Identification. Lam. Dict., 2. p. 465. ; Dec. Prod., 2. 
p. 479.; Don’s Mill., 2. p. 428. , 
Synonymes. G. hérrida Willd. Sp. 4. p. 1098.; Fe- 
vier de la Chine, Fr. 
Engravings. Dec. Légum. Mém., 1. t. 1. ; the plate 
of this species in Arb. Brit., 1st edit., vol. v. 
Spec. Char., §c. Spines stout, conical ; 
those on the branches simple or 
branched ; those on the stem grouped 
and branched. The leaflets ovate- 
elliptical, obtuse. Legumes compressed, 
long. The spines in this species are 
axillary, not distant from the axil. (Dec. 
Prod.) A middle-sized tree. China. 
Height 30 ft. to 50 ft. Introduced in 
1774. Flowers greenish; June and 
July. Legume not seen in England. 
Varieties. 
¥ G. s. 2 inérmis N. Du Ham., G. 
japonica Lodd. Cat., G. javanica 
Lam. (see the plate of this tree 
in Arb. Brit., Ist edit., vol. v.; 
and our jig. 414.), differs from 
G. sinénsis in being without 
spines, of much less vigorous 
growth, and in having the foliage 
of amuch deeper green. It seems 
a very desirable variety for small 
gardens. 
+ G.s. 3 major Hort., G. hérrida major Lodd. Cai., seems scarcely to 
differ from the species. 
¥ G. s. 4 nana Hort., G. h. nana in Hort. Soc. Gard. (see the plate of 
this tree in Arb. Brit., Ist edit., vol. v.; and our fig 415.), is a 
tree of somewhat lower growth than the species, but scarcely, as it 
appears to us, worth keeping distinct. 
¥ G.s.5 purpirea Hort., G.h. purptirea Lodd. Cat. (see the plate in 
Arb. Brit., Ist edit., vol. v.; and our fig. 416.), is a small tree of 
compact upright growth, very suitable for gardens of limited extent. 
Other Varieties of G. sinénsis.—In Loddiges’s arboretum there is a plant 
414. Gledftschia s. inérmis. 
