112 BOTANY FOR BEGINNERS, [Ch. XTX. 
pat a part being taken from the 16th class and carried to the 
473. The germ of the papilionaceous plant extends itself in- 
to that kind of pod called a legume. The term Leguminous, 
which is taken from the fruit, as Papilionaceous is from the 
flower, is applied to the family of plants we are considering. 
474, In this family we find the fine table vegetables, Beans 
and Peas, the useful medicinal plant, Liquorice, the fine colour- 
ing Indigo, the fragrant Clover, so grateful as food to many of 
the domestic animals; the splendid Locust tree, the elegant Lu- 
pine, and the delicate and odoriferous Sweet-pea. 
CHAPTER XIX. 
Natural Families.—Labiate Plants. 
475, The flowers belonging to the labiate family are mono- 
petalous, consisting of one piece, and are irregular in their out- 
line and appearance. 
476. The term Labiate, derived from a Latin word labia, 
lips, has been given, on account of the flower appearing to be 
divided at the top into two parts, resembling the lips of a horse 
or other animal. See Fig. 47. 
477. This natural family is sub-divided into ringent and gap- 
ing, where the entrance into the corolla is open, and personate 
or masked, where the corolla is closed by a prominent throat or 
alate. 
‘ 478. The labiate flowers have mostly four stamens of unequal 
length, standing in pairs, beneath an arch in the upper lip of the 
corolla. On account of this circumstance, they are ranked in 
the class Didynamia. A few of the Labiate plants have but 
two stamens, and on that account, are placed in the class Dian- 
dria, as the sage and mountain-mint. Here again the artificial 
system separates a tribe, which nature has made strikingly simi- 
lar. If you examine a flower of this family, the Balm or Cat- 
mint, you will notice the arched upper lip of the petal covering 
the stamens, and that the lower lip hangs down so that you can see 
473. What does the germ of the papilionaceous plants become ? 
474, What are some of plants found in this family ? 
475. What is said of the flowers belonging to the labiate family ? 
476. Why are they called labiate 4 
477. How is this family sub-divided 4 
478. What is said of the stamens of labiate flowers, and to what 
class do these flowers belong ? 
