•102 • OBJECT LESSOIJS IN BOTANY. 



. germinates, grows, and bears leaves only ; and in its second 

 year it blossoms, bears fruit, and dies. Such are the Beet 

 and Radish. 



213. A perennial plant survives several or many years. 

 There are herbaceous perennials and woody perennials. The 

 herbaceous perennials, or perennial herhs, are such as survive 

 the winter only by their roots or their parts which grow 

 underground. These in Spring send up leaves, flowers, and 

 and often stems, all of which perish in Autumn, leaving only 

 the parts underground alive as before. Such are the Hop, 

 Asters, Violets. 



214r. Woody perennials survive the winter by their stems 

 as well as roots, and usually grow several years before flow- 

 ering, and thence flower annually during their existence. 

 According to their size, such plants are trees, shrubs, under- 

 shrubs. A tree is the largest among plants, having a .perma- 

 nent, woody stem, usually unbranehed &e?ow,'and dividing 

 into branches above. The Oaks, Elms, and Pines are famil- 

 iar examples. 



215. A ehrub is smaller than a tree, usually growing in 

 clusters from one underground mass of roots. The Lilacs, 

 Roses, Alders, are shrubs. Small shrubs, about of our own 

 stature, as the Currants, Brambles, we call bushes. Very 

 low shrubs, as the Blueberries, Box, &c., are undershrubs. 



313. Describe =•■ perennial plant. Of what two sorts ? Describe a peren- 

 nial herb.' 



315. A tree, a shrub, bush, undershrub, — how distinguished? To which 

 of the abore-mentioned sorts does the Cabbage belong^ To which the Hol- 

 lyhock ? the Balsamine ? Four-o'clock ? To which the Tulip ? Golden-rod ? 

 Lily? Pink? Quince? &c. 



