First Book of Grasses —— The Structure of Grasses Explained for Beginners

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ISBN: 9781331925910 出版年：2016 页码：136 Agnes Chase Forgotten Books

Of all plants grasses are the most important to man. The different kinds are known by very few even among botanists. This is largely because they are supposed to _be very difficult. When the strue ture of grasses is clearly understood, they are not more difficult to study than are other plants. The method here Offered has been used by the author for some years in teaching special students. The introduction explains the method followed. The body of the primer consists Of twelve lessons, graded from the Simplest to the most complex. Each lesson is accompanied by figures bringing out the facts in the text. The difference in the size of the flowering organs is so great that the figures are not drawn to the same scale. The organs are enlarged as much as necessary to illustrate the char acter discussed.