. Botany for beginners : an introduction to Mrs. Lincoln's Lectures on botany : for the use of common schools and the younger pupils of higher schools and academies. Botany. Fig. 72. Ch. XX.] CLASSES AND ORDERS. Hi) CLASS 1.—MONANDRIA.* One stamen. It contains two orders. 507. The first order of the first class is Monogynia^ or one pistil. There are few plants in this class; the genus Hippn- ris, or mare's tail, which grows in water and marshes, and is-, therefore aquatic, belongs here. It is considered a perfect flower, because it has a stamen and pistil, though it has neither calyx nor corol
. Botany for beginners : an introduction to Mrs. Lincoln's Lectures on botany : for the use of common schools and the younger pupils of higher schools and academies. Botany. Fig. 72. Ch. XX.] CLASSES AND ORDERS. Hi) CLASS 1.—MONANDRIA.* One stamen. It contains two orders. 507. The first order of the first class is Monogynia^ or one pistil. There are few plants in this class; the genus Hippn- ris, or mare's tail, which grows in water and marshes, and is-, therefore aquatic, belongs here. It is considered a perfect flower, because it has a stamen and pistil, though it has neither calyx nor corolla. 508. Look at Fig. 72, and you will see at a, that tli£ stem is erect and simple; the leaves linear, acute, and groAving in uho7'ls. At 6, is a representation of a flow- er of this plant as seen through a mi croscope; the germ is egg-shaped ; the style is long and awl-shaped ; the stigma is small and pointed; the an- ther is large, and connected to the germ o j o by a short filament. You must study the explanations and look at the figure until you can f tell the different parts as represented. 509. Southern countries have some very valuable plants oi this class; as the Arrow-root, which, when made into gruel, is nourishing to the sick; persons have sometimes lived for weeks upon this; it has been found very beneficial for feeble children who could not bear milk. This substance looks like starch, and is prepared by wetting it first with a little cold water, and then pouring upon it boiling wrater in the same manner as for making starch. 510. The Ginger is botanically called Zinziber, a name * Here the pupil can consult pages 24 and 25, where he will find that Monos is the Greek for one, and andria for stamen; therefore the 1st class is called Monandria, because it has one stamen. For an expla- nation of the names of the orders, he must look to Chap. V. It is re- commended to the teacher to examine the pupil closely upon the classes and orders, and especially the derivation
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